WO2014124575A1

WO2014124575A1 - Usb connector and printed circuit board for usb connector

Info

Publication number: WO2014124575A1
Application number: PCT/CN2013/078715
Authority: WO
Inventors: 赵梦龙; 龚树强; 杜红娜
Original assignee: 华为终端有限公司
Priority date: 2013-02-17
Filing date: 2013-07-03
Publication date: 2014-08-21
Also published as: CN203166239U

Abstract

Provided in the application are a USB connector and a printed circuit board for USB connector. The USB connector comprises a printed circuit board, a USB connecting terminal and a card connecting terminal, the printed circuit board comprises an interface end spliced with a USB slot, the USB connecting terminal is arranged on the first surface of the interface end, the card connecting terminal is arranged on the second surface of the interface end, and a fixing mechanism used for fixing a smart card is arranged on the second surface. In the application, the smart card is arranged on the connecting end, for enabling the smart card to be away from a high heating region of the printed circuit board, to avoid influence of heat radiated in a working process to the smart card, as well as avoiding the problem that the smart card is burnt by over heat to reduce unnecessary loss. In addition, in the application, the card connecting terminal and the smart card are arranged on the interface end, to further reduce a holding space reserved to the smart card in the high heating region of the USB connector, thereby being helpful to lightness and thinness of products.

Description

USB connection device and printed circuit board for USB connection device

The present application relates to the field of USB connection technologies, and in particular, to a USB connection device, and to a printed circuit board for a USB connection device. Background technique

In the prior art, smart cards such as a SIM card (Subscriber Identity Module), an SD card (Secure Digital Memory Card), and a TF card (flash memory card) generally require a card reader such as a USB connection device. The device is connected to a terminal such as a personal computer.

The existing USB connecting device is composed of an outer casing, a printed circuit board, a USB connecting terminal and a card connecting terminal for electrically connecting with the smart card. The USB connecting terminal is disposed on the interface end of the printed circuit board, and the card connecting terminal is disposed on the The other end of the printed circuit board is specifically disposed in the outer casing and spaced apart from the USB connection terminal. During use, the USB connection device is connected to the USB slot of the terminal through the interface end of the printed circuit board, and is connected through the USB. The terminal is connected to the terminal for data transmission and the like. However, in the process of working, the part of the printed circuit board located in the outer casing belongs to a high heat-generating area, and the heat radiated by the printed circuit board easily affects the performance of the smart card disposed thereon, and even damages the smart card due to overheating, causing unnecessary loss. . Utility model content

In view of this, the present application provides a USB connection device and a printed circuit board for a USB connection device to solve the technical problem that the performance of the smart card is damaged or the smart card is damaged due to overheating of the printed circuit board of the USB connection device, and Effectively protect smart cards.

In order to solve the above problems, a first aspect of the present application provides a USB connection device including a printed circuit board, a USB connection terminal, and a card connection terminal, the printed circuit board including an interface end for interfacing with a USB slot The USB connection terminal is disposed on the first surface of the interface end, the card connection terminal is disposed on the second surface of the interface end, and the second surface is provided with a fixing mechanism for fixing the smart card. In conjunction with the first aspect, in a first possible implementation, the USB connection device further includes an interface housing, and the interface housing and the second surface cooperate to form the fixing mechanism, and the fixing mechanism is a card slot.

In conjunction with the first possible implementation of the first aspect, in a second possible implementation, the printed circuit board includes a first circuit board and a second circuit board that are electrically connected, and the interface end is disposed on the first circuit The first surface and the second surface are respectively opposite sides of the first circuit board.

In conjunction with the second possible implementation of the first aspect, in a third possible implementation, the end of the second circuit board connected to the first circuit board is provided with a limiting slot, the limiting slot and the card The slot fit forms a receiving cavity for securing the smart card.

In conjunction with the third possible implementation of the first aspect, in a fourth possible implementation, the accommodating cavity is provided with a card slot, and the card slot is disposed in the USB connection device and the USB slot On the end face.

In conjunction with the second possible implementation of the first aspect, in a fifth possible implementation, the first circuit board is provided with a first positioning hole, and the second circuit board is provided with a second positioning hole, A positioning member is disposed on the interface housing, and the first circuit board and the second circuit board pass through the first positioning hole and the second positioning hole through the positioning member to achieve a stable connection.

In conjunction with the fifth possible implementation of the first aspect, in a sixth possible implementation, the positioning member is bent and protruded from an inner wall of the interface housing.

In conjunction with the second possible implementation of the first aspect, in a seventh possible implementation, the interface housing is separately soldered to the first circuit board and the second circuit board by surface mount technology, or Pasted on the first circuit board and the second circuit board.

With the possible implementation of the second to seventh aspects of the first aspect, in an eighth possible implementation, the USB connection terminal and/or the card connection terminal are integrally formed on the first circuit board. .

In conjunction with the eighth possible implementation of the first aspect, in a ninth possible implementation, the first circuit board and the second circuit board are connected by soldering.

In conjunction with the eighth possible implementation of the first aspect, in a tenth possible implementation, the card connection terminal is a metal dome.

In combination with any of the possible implementations of the second to seventh aspects of the first aspect, In an implementation manner, the USB connection device further includes a card holder electrically connected to the first circuit board, and the card connection terminal is disposed on the card holder.

In conjunction with the eleventh possible implementation of the first aspect, in a twelfth possible implementation, the card holder is soldered to the first circuit board by surface mount technology.

In conjunction with the first aspect, in a thirteenth possible implementation, the USB connection device further includes a card holder for the card connection terminal, and the second surface is provided with a receiving slot, and the card holder is fixed to the receiving portion The slot is electrically connected to the interface end.

In conjunction with the thirteenth possible implementation of the first aspect, in a fourteenth possible implementation, the second surface is hollowed out and forms a first sidewall, a second sidewall, and the first sidewall The recessed area between the second side walls, the first side wall, the second side wall and the recessed area cooperate to form the receiving groove.

In conjunction with any of the possible implementations of the second to seventh, or the thirteenth to fourteenth aspects of the first aspect, in the fifteenth possible implementation, the interface housing is further provided with a guide slot and a push a pressing member, the guiding slot is connected to the interface housing and communicates with the card slot, the pressing member is movably disposed along the guiding slot and partially formed in the card slot, and the pushing member is used for pushing the smart card to exit the Card slot.

In conjunction with any of the possible implementations of the second to seventh, or the thirteenth to fourteenth aspects of the first aspect, in a sixteenth possible implementation, the USB connection device further includes an outer casing, the printing The circuit board is tightly disposed in the accommodating space formed by the outer casing, and the interface end and the interface housing are exposed outside the outer casing for being inserted into the USB socket.

In order to solve the above problems, a second aspect of the present application provides a printed circuit board for a USB connection device, the printed circuit board including an interface end for interfacing with a USB socket, the interface end including a first surface and a second Surface: The first surface is used to set a USB connection terminal of the USB connection device; the second surface is used to set a card connection terminal of the USB connection device.

With reference to the second aspect, in a first possible implementation, the printed circuit board includes a first circuit board and a second circuit board that are electrically connected, and the interface end is disposed on the first circuit board, the first surface and The second surface is respectively opposite sides of the first circuit board.

In conjunction with the first possible implementation of the second aspect, in a second possible implementation, the end of the second circuit board connected to the first circuit board is provided with a limiting slot, and the limiting slot is used for fixing Smart card. In conjunction with the first or second possible implementation of the second aspect, in a third possible implementation, the USB connection terminal and/or the card connection terminal are integrally formed on the first circuit board.

In conjunction with the second aspect, in a fourth possible implementation, the second surface is provided with a receiving slot for fixing a card holder of the USB connecting device, and the card seat is configured to set the card connecting terminal .

In conjunction with the fourth possible implementation of the second aspect, in a fifth possible implementation, the second surface is hollowed out and forms a first sidewall, a second sidewall, and the first sidewall and the first sidewall The recessed area between the two side walls, the first side wall, the second side wall and the recessed area cooperate to form the receiving groove.

The application provides a USB connection terminal on the first surface of the interface end of the printed circuit and a card connection terminal on the second surface of the interface end, and then fixes the smart card to the second surface through the fixing mechanism, so that the smart card can be away from the printed circuit board during operation. The high heat-generating area reduces the influence of heat emitted by the printed circuit board on the smart card, and can effectively avoid the problem of damage to the smart card due to overheating and reduce unnecessary losses. In addition, in the present application, the card connection terminal and the smart card are disposed on the interface end, and the space for the USB card to be reserved for the smart card in the high heat-generating area can be reduced, which is beneficial to the thinning and thinning of the product. DRAWINGS

1 is a perspective exploded view of a USB connection device according to an embodiment of the present invention, in which a smart card is also displayed;

2 is a schematic view showing the mounting manner of the USB connecting device shown in FIG. 1, wherein the first circuit board and the second circuit board are connected;

3 is a perspective exploded view of the USB connection device shown in FIG. 1 from another perspective, wherein a smart card is also displayed;

4 is a perspective assembled view of the USB connecting device shown in FIG. 1, in which an outer casing is also shown;

5 is a partial structural diagram of the USB connecting device shown in FIG. 4, in which a smart card is also displayed; 6 is a perspective exploded view of another embodiment of the USB connection device of the present application, in which a smart card is also displayed;

Figure 7 is a schematic structural view of a first circuit board of the USB connecting device shown in Figure 6;

8 is a perspective exploded view of still another embodiment of the USB connection device of the present application, wherein a smart card is also displayed;

9 is a perspective exploded view of an embodiment of a printed circuit board of the present application, in which a smart card is also displayed;

Figure 10 is a perspective assembled view of the printed circuit board shown in Figure 9, which also shows a smart card;

Figure 11 is a perspective exploded view of another embodiment of the printed circuit board of the present application, in which a smart card is also shown. detailed description

In the following description, for purposes of illustration and description, reference, However, the technology in the field please. In other instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the application.

The following description will be made with reference to the accompanying drawings and specific embodiments.

Embodiment 1 Referring to FIG. 1 to FIG. 3, in the present embodiment, the USB connection device includes, but is not limited to, a printed circuit board 10, a USB connection terminal 11, and a card connection terminal 12. The USB connection device realizes functions such as data connection and transmission between the smart card 20 and the terminal, and can be a card reader that performs data connection and transmission only through the USB connection terminal 11, and can also be provided with a USB connection terminal 11 and wireless at the same time. A card reader that performs card reading in a non-contact manner such as radio frequency is not limited insofar as it is understood by those skilled in the art. Specifically, the smart card 20 is a SIM card, an SD card, a TF card, or other card containing a microcircuit. The SIM card may further be a Nano-SIM card; of course, in other embodiments, the smart card 20 may also be other types of memory cards, which are not limited herein.

In the present embodiment, the printed circuit board 10 includes an interface end for interfacing with a USB slot. The interface end includes a first surface 103 and a second surface 104. The second surface 104 is provided with a fixing mechanism for fixing the smart card 20. The other end of the printed circuit board 10 different from the interface end is a working end including a circuit. It should be noted that the fixing mechanism can be used in the form of a hook or a card slot, and the smart card 20 can be fixed to the printed circuit board 10, which is not limited by those skilled in the art.

It should be noted that the printed circuit board 10 of the present embodiment specifically includes a first circuit board 101 and a second circuit board 102 that are electrically connected, and an interface end of the printed circuit board 10 is disposed on the first circuit board 101, as shown in FIG. The first surface 103 and the second surface 104 are opposite sides of the first circuit board 101, respectively. The USB connection terminal 11 is disposed on the first surface 103 of the interface end, and the card connection terminal 12 is disposed on the second surface 104 of the interface end. In other words, the USB connection terminal 11 and the card connection terminal 12 are respectively disposed on opposite sides of the interface end.

Compared with the prior art, the card connecting terminal 12 is disposed at the working end of the high heat generating area, and the application can effectively reduce the influence of the heat radiated by the printed circuit board 10 on the smart card 20, and can also avoid The working end of the heating zone is overheated to damage the smart card 20 and reduce unnecessary losses.

In addition, in other embodiments, if the area of the interface end is sufficiently large, the first surface and the second surface may also be the same side of the printed circuit board 10, that is, the USB connection terminal 11 and the card connection terminal 12 are disposed on the same side of the interface end. In this way, the influence and loss caused by the card connection terminal 12 being disposed at the working end can also be avoided. The specific arrangement manner is not to be described in detail within the scope of those skilled in the art.

In this embodiment, the USB connecting device further includes an interface housing 13 which may be made of a metal material, which may be respectively soldered to the first circuit board 101 and the second by an SMT process (surface mount technology). The interface board 13 can also be made of a metal or rubber material, and correspondingly can also be directly adhered to the first circuit board and the second circuit board; of course, in other embodiments, The interface housing 13 can be directly fixed to the first circuit board 101 and the second circuit board 102 by means of screwing or riveting, which is not limited herein.

As shown in FIG. 5, a fixing mechanism is formed between the interface housing 13 and the second surface 104, and the fixing mechanism of the present embodiment uses a card slot. Further, in order to securely define the smart card 20 in the card slot to prevent it from shaking, the second circuit board 102 is coupled to the first circuit board 101. The connecting end is provided with a limiting slot 1021. The limiting slot 1021 cooperates with the card slot to form a receiving cavity 121 for fixing the smart card 20, and the receiving cavity 121 and the smart card 20 are closely matched, for example. A USB connection device corresponding to the model is provided for different smart cards 20. In FIG. 5, the accommodating cavity 121 is provided with a card slot 100, and the card slot 100 is disposed on an end surface of the USB connecting device and the USB slot. Herein, "fixed" in the present application generally means "for positioning", and is not limited to "firm positioning", and is not specifically limited in the scope which is easily understood by those skilled in the art, and is expressed only as an implementation connection. The way.

Of course, in other embodiments, the USB connection device can also be used in a manner that is not provided with the interface housing 13, and is only connected to the USB slot through the interface end, without the interface housing 13 being connected, correspondingly, fixed. The mechanism needs to be formed separately at the interface end second surface 104, such as the aforementioned hook or the like, wherein the USB connection method in which the interface housing 13 is not provided is prior art, and within a range that is easily understood by those skilled in the art, Do not repeat them.

In addition, in order to achieve a stable connection between the first circuit board 101 and the second circuit board 102, the first circuit board 101 and the second circuit board 102 may be connected by soldering; and the interface housing 13 is disposed. In the embodiment, the first positioning hole 1011 may be disposed on the first circuit board 101, the second positioning hole 1022 is disposed on the second circuit board 102, and the positioning member 130 is disposed on the interface housing 13, and then passed through the positioning member. The 130 extends through the first positioning hole 1011 and the second positioning hole 1022 to achieve a stable connection between the first circuit board 101 and the second circuit board 102. It is not difficult to see that the interface housing 13 is connected to the first circuit board 101 and the second circuit board 102 by soldering or pasting, and is connected by the positioning member 13, thereby further strengthening the interface housing 13. The strength of the connection between the first circuit board 101 and the second circuit board 102 ensures electrical connection between the first circuit board 101 and the second circuit board 102.

It should be noted that the first positioning hole 1011 and/or the second positioning hole 1022 are polygonal holes (such as rectangular holes), and the positioning member 130 is a corresponding polygonal column (such as a rectangular column), and a rectangular column and a rectangle are used. The hole matching manner can effectively prevent the first circuit board 101 and the second circuit board 102 from pivoting between the shafts, thereby achieving a stable connection; at the same time, the positioning member 130 can be bent and protruded from the inner wall of the interface housing 13 to be formed. In other words, the positioning member 130 is integrally formed with the interface housing 13 without using a process such as welding, thereby saving production costs.

In this embodiment, the interface housing 13 may further be provided with a guiding slot 131 and a first limiting block. 132. A second limiting block (not shown) and a pushing member 133.

The guiding slot 131 penetrates the interface housing 13 and communicates with the card slot (or the receiving cavity 121). The pushing member 133 is movably disposed along the guiding slot 131 and partially formed in the card slot, and the pushing member 133 is used for pushing the smart card. 20 to exit the card slot (or the receiving cavity 121), it is not difficult to see from FIG. 5 that the smart card 20 can be pushed out from the card slot 100 when the pressing member 133 is pressed, and the cooperation between the guiding slot 131 and the pushing member 133 is performed. The method facilitates the user to take out the smart card 20 and improves the user experience. Of course, in other embodiments, an elastic member that can move along the card slot toward the card slot 100 can be disposed in the card slot. By controlling the function of the elastic member, the smart card 20 is automatically ejected by a predetermined distance when the card is taken. The user's card is not limited insofar as it is easily understood by those skilled in the art.

The first limiting block 132 and the second limiting block cooperate to form a positioning slot, and the positioning slot basically functions in the same manner as the limiting slot 1021. The positioning slot is the limiting slot 1021 in the direction of the insertion slot 100. The extension, by the interaction of the positioning slot and the limiting slot 1021, can further prevent the smart card 20 from shaking during use, thereby improving work efficiency.

As shown in FIG. 1 , the USB connection device further includes a card holder 120 electrically connected to the first circuit board 101. The card holder 120 can adopt a general card connector structure, and the card holder 120 can be soldered to the first by surface mount technology. On the circuit board 101, of course, it can also be embedded into the limiting slot 1021 of the second circuit board 102 by an interference fit to achieve a stable connection. At this time, the card connection terminal 12 is correspondingly disposed on the card holder 120.

As shown in FIG. 4, the USB connecting device may further include an outer casing, wherein the outer casing may include an upper cover 141 and a lower cover 142, and the upper cover 141 and the lower cover 142 are connected to each other. Of course, in other embodiments, the outer casing is also The printed circuit board 10 and its set connection terminals can be pushed in from the one end of the outer casing and exposed to the outside from the other end to be connected to the USB slot. Specifically, in the embodiment, the upper cover 141 and the lower cover 142 are used, and the printed circuit board 10 is closely disposed in the accommodating space formed by the upper cover 141 and the lower cover 142, and the interface end and the interface housing 13 is exposed outside the casing for insertion with the USB socket. In this manner, the printed circuit board 10 can be effectively positioned in this manner.

Referring to FIG. 5 again, when the USB connection device of the embodiment is in operation, the smart card 20 is inserted from the card slot 100, and then the USB connection device is inserted into the USB slot of the terminal, so that the terminal can read the smart card 20. Write operation; it is not difficult to see that due to the card connection terminal 12 and The smart card 20 is disposed at the interface end. The present application fully utilizes the fixed volume space of the interface end, and reduces the storage space reserved for the smart card 20 in the high heat generating area of the working end of the USB connecting device, which is beneficial to the thinning and thinning of the product. In other words, the present application can further reduce the thickness between the upper cover 141 and the lower cover 142, and reduce the overall thickness of the outer casing, so that the manufactured USB connecting device is light and thin, and can effectively protect the smart card 20 from being Burned out, etc., so it is more practical.

In summary, the present application sets the USB connection terminal 11 at the first surface 103 of the interface end of the printed circuit 10 and the card connection terminal 12 at the second surface 104 of the interface end, and then fixes the smart card 20 to the second surface 104 by a fixing mechanism, so that During operation, the smart card 20 can be away from the high heat-generating area of the printed circuit board 10, reducing the influence of the heat radiated by the printed circuit board 10 on the smart card 20, and effectively avoiding the problem of damaging the smart card 20 due to overheating. Reduce unnecessary losses. In addition, in the present application, the card connection terminal 12 and the smart card 20 are disposed at the interface end, and the storage space reserved for the smart card 20 in the high heat-generating area of the USB connection device can be reduced, which is advantageous for thinning and thinning of the product.

Embodiment 2 Referring to FIG. 6 and FIG. 7, the USB connection device includes, but is not limited to, a printed circuit board 60, a USB connection terminal 61, and a card connection terminal 62. The USB connection device implements functions such as data connection and transmission between the smart card 70 and the terminal. Specifically, the smart card 70 can be a SIM card, an SD card, a TF card, or other card including a microcircuit. The SIM card may further be a Nano-SIM card; of course, in other embodiments, the smart card 70 may also be other types of memory cards, which are not limited herein. In addition, in the present embodiment, the components or structures not shown in the drawings may be referred to the related description of the foregoing embodiments, and are not described in detail within the scope of those skilled in the art.

In the present embodiment, the printed circuit board 60 includes an interface end for interfacing with a USB slot, the interface end includes a first surface 603 and a second surface 604, and the second surface 604 is provided with a fixing for fixing the smart card 70. Mechanism; The other end of the printed circuit board 60 different from the interface end is a working end including a circuit. It should be noted that the fixing mechanism can be used in the form of a hook or a card slot, and the smart card 70 can be fixed to the printed circuit board 60, which is not limited by those skilled in the art.

The printed circuit board 60 of the present embodiment specifically includes a first circuit board 601 and a second circuit board 602 that are electrically connected, and an interface end of the printed circuit board 60 is disposed on the first circuit board 601, as shown in FIG. The first surface 603 and the second surface 604 are opposite sides of the first circuit board 601, respectively. The USB connection terminal 61 is disposed on the first surface 603 of the interface end, and the card connection terminal 62 is disposed on the second surface 604 of the interface end. In other words, the USB connection terminal 61 and the card connection terminal 62 are respectively disposed on opposite sides of the interface end.

Compared with the prior art, the card connection terminal 62 is disposed at the working end of the high heat generating area, and the application can effectively reduce the influence of the heat emitted by the printed circuit board 60 during the operation of the smart card 70, and can also avoid The working end of the heating zone is overheated to damage the problem of the smart card 70, reducing unnecessary losses.

It should be noted that, in this embodiment, the USB connection terminal 61 and/or the card connection terminal 62 can be integrally formed on the first circuit board 601, and the card connection terminal 62 is a metal spring piece, compared with the existing one. The technology requires a USB connector to set the USB connection terminal 61 and a card connector is required to set the card connection terminal 62. This embodiment can further save the material for manufacturing the connector, and use the USB connection terminal 61 and ( Or the card connection terminal 62 is in the form of a body, which makes the USB connection device lighter and reduces the production cost.

In this embodiment, the USB connecting device further includes an interface housing 63. The interface housing 63 can be made of a metal material, which can be respectively soldered to the first circuit board 601 and the second circuit board 602 by an SMT process. The interface housing 63 may be directly fixed to the first circuit board 601 and the second circuit board 602 by screwing or riveting, and is not limited herein. The joint housing 63 and the second surface 604 cooperate to form a fixing mechanism, that is, the fixing mechanism of the present embodiment uses a card slot.

Further, in order to securely fix the smart card 70 in the card slot to prevent it from shaking, the end of the second circuit board 602 connected to the first circuit board 601 is provided with a limiting slot 6021, a limiting slot 6021 and a card slot. In conjunction with the accommodating cavity (not shown) for fixing the smart card 70, the accommodating cavity and the smart card 70 are closely matched, for example, a different type of USB connection is provided for different smart cards 70. Device. In addition, the accommodating cavity is provided with a card insertion opening (not shown), and the card insertion opening is disposed on the end surface of the USB connecting device and the USB socket. Of course, in other embodiments, the USB connection device can also be used in a manner that is not provided with the interface housing 63. It is only connected to the USB slot through the interface end, and does not need to be connected by the interface housing 63, correspondingly, fixed. The mechanism needs to be formed separately at the interface end second surface 604, such as the aforementioned hook shape Style. The USB connection method in which the interface housing 63 is not provided is a prior art, and will not be described in detail within a range that can be easily understood by those skilled in the art.

In addition, in order to achieve a stable connection between the first circuit board 601 and the second circuit board 602, the first circuit board 601 and the second circuit board 602 may be connected by soldering. In the present embodiment, a first positioning hole 6011 is disposed on the first circuit board 601, a second positioning hole 6022 is disposed on the second circuit board 602, and a positioning member 630 is disposed on the interface housing 63, and then passes through the positioning member. The 630 penetrates the first positioning hole 6011 and the second positioning hole 6022 to achieve a stable electrical connection between the first circuit board 601 and the second circuit board 602.

It should be noted that the first positioning hole 6011 and/or the second positioning hole 6022 are polygonal holes (such as triangular holes), and the positioning member 630 is a corresponding polygonal column (such as a triangular column), and a triangular column and a triangle are used. The hole matching manner can effectively prevent the first circuit board 601 and the second circuit board 602 from rotating around the axis, thereby achieving stable connection. The positioning member 630 can be bent and protruded from the inner wall of the interface housing 63. In other words, the positioning member 630 is integrally formed with the interface housing 63 without using a process such as welding, thereby saving production costs.

In this embodiment, the interface housing 63 may further be provided with a guiding slot 631 and a first limiting block.

632, the second limit block (not shown) and the pusher (not shown). The guiding groove 631 extends through the interface housing 63 and communicates with the card slot (or the receiving cavity). The pressing member is movably disposed along the guiding groove 631 and partially formed in the card slot, and the pushing member is used to push the smart card 70 to exit. The card slot (or the receiving cavity), as described above, can push the smart card 70 out of the card slot when the pressing member is pressed, and the user can take out the smart card 70 by the cooperation manner of the guiding groove 631 and the pushing member. , improved user experience.

Of course, in other embodiments, an elastic member that can move along the card slot toward the card slot can be disposed in the card slot. By controlling the function of the elastic member, the smart card 70 is automatically ejected by a predetermined distance when the card is taken, thereby facilitating the user. The card is not limited as long as it is easily understood by those skilled in the art. The first limiting block 632 and the second limiting block cooperate to form a positioning slot. The function of the positioning slot is the same as that of the limiting slot 6021. The positioning slot is the limiting slot 6021 in the direction of the insertion slot. The extension, by the interaction of the positioning slot and the limiting slot 6021, can further prevent the smart card 70 from swaying during use, thereby improving work efficiency.

The USB connection device of the present embodiment may further include an outer casing (not shown). The printed circuit board 60 is tightly disposed in the accommodating space formed by the outer casing, and the interface end and the interface housing 63 are exposed. It is external to the housing for plugging into the USB slot.

When the USB connection device of the embodiment is in operation (refer to the related structure of FIG. 5), the smart card 70 is inserted from the card slot, and then the USB connection device is inserted into the USB slot of the terminal, so that the terminal pair smart card 70 can be realized. Read and write operations. It is not difficult to see that since the card connection terminal 62 and the smart card 70 are both disposed at the interface end, the present application makes full use of the fixed volume space of the interface end, and reduces the accommodation of the smart card 70 reserved for the high-heating area of the USB connection device at the working end. Space is conducive to the thinning of the product. In other words, the present application can further reduce the overall thickness of the outer casing, so that the obtained USB connecting device is light and thin, and can effectively protect the smart card 70 from being burnt out, etc., and thus is more practical.

In the present application, a USB connection terminal 61 is disposed on the first surface 603 of the interface end of the printed circuit board 60, and a card connection terminal 62 is disposed on the second surface 604 of the interface end, and the smart card 70 is fixed to the second surface 604 by a fixing mechanism, so that the work is performed. The smart card 70 can be away from the high heat-generating area of the printed circuit board 60, reduce the heat generated by the printed circuit board 60 during operation, and can effectively avoid the problem of damage to the smart card 70 due to overheating, and reduce Unnecessary losses. In addition, in the present application, the card connection terminal 62 and the smart card 70 are disposed at the interface end, and the storage space reserved for the smart card 70 in the high heat-generating area of the USB connection device can be reduced, which is advantageous for thinning and thinning of the product.

Embodiment 3 Referring to FIG. 8, the USB connection device includes but is not limited to a printed circuit board 80, a USB connection terminal (not shown), and a card connection terminal 810. The USB connection device realizes functions such as data connection and transmission between the smart card 83 and the terminal. Specifically, the smart card 83 may be a card with a micro circuit such as a SIM card, an SD card disaster TF card, or other types of cards. The memory card is not limited herein. In addition, some of the elements or structures not shown in the present embodiment may be referred to the related description of the previous embodiments, and will not be described in detail within the scope of those skilled in the art.

In the present embodiment, the printed circuit board 80 includes an interface end for interfacing with a USB slot, the interface end includes a first surface 801 and a second surface 802, and the second surface 802 is provided with a fixing for fixing the smart card 83. Mechanism; The printed circuit board 80 is different from the other end of the interface end as a working end of the high heat generating area. The fixing mechanism can be in the form of a hook or a card slot, and the only need to fix the smart card 83 to the printed circuit board 80 is within the scope of those skilled in the art. Not limited.

The USB connector further includes a card holder 81, and the second surface 802 is provided with a receiving slot. The card holder 81 is fixed in the receiving slot and electrically connected to the interface end. Specifically, the second surface 802 is hollowed out and forms a first sidewall 803, a second sidewall 804, and a recessed region 805 between the first sidewall 803 and the second sidewall 804, the first sidewall 803, The second side wall 804 and the recessed area 805 are formed to form a receiving groove. The card holder 81 can be disposed in the receiving groove by a process such as SMT or bonding, which is not limited herein.

In addition, the difference between the embodiment and the foregoing plurality of embodiments further includes: the printed circuit board 80 is formed by a molding method, which can effectively reduce the use of the printed circuit board material, and does not need to perform a plurality of different circuit boards. Processes such as processing effectively reduce production costs.

As described above, the USB connection terminal is disposed on the first surface 801 of the interface end, and the card connection terminal 810 is disposed on the second surface 802 of the interface end through the card holder 81. In other words, the USB connection terminal and the card connection terminal 810 are respectively The two sides of the interface are disposed opposite to each other, and the card connection terminal 810 is disposed at the working end of the high heat generating area. The application can effectively reduce the heat emitted by the printed circuit board 80 during operation to the smart card 83. The impact can also avoid the problem of damaging the smart card 83 due to overheating of the working end of the high heat generating zone, reducing unnecessary losses.

In the embodiment, the USB connecting device further includes an interface housing 82. The interface housing 82 can be made of a metal material, which can be soldered to the printed circuit board 80 by an SMT process. Of course, the interface housing 82 can also be directly It is fixed to the printed circuit board 80 by means of screwing or riveting, and is not limited herein. The interface housing 82 and the second surface 802 cooperate to form a fixing mechanism, that is, the fixing mechanism of the present embodiment uses a card slot. At the same time, the first side wall 803 and the second side wall 804 cooperate with the card slot to form an accommodating cavity (not shown) for fixing the smart card 83. The accommodating cavity and the smart card 83 are closely matched. In the manner, for example, a USB connection device corresponding to the model is set for different smart cards 83. In addition, the accommodating cavity is provided with a card slot (not shown), and the card slot is disposed on the end surface of the USB connecting device and the USB slot.

In order to achieve a stable connection between the printed circuit board 80 and the interface housing 82, a positioning hole 800 is disposed on the printed circuit board 80, a positioning member 820 is disposed on the interface housing 82, and then the positioning member 820 is passed through the positioning hole 800 to be printed. The circuit board 80 is stably connected to the interface housing 82. The positioning hole 800 is a polygonal hole (such as a rectangular hole), and the positioning member 820 is a corresponding polygonal column (such as The rectangular column) can be prevented from being loosened between the printed circuit board 80 and the interface housing 82 by the combination of the rectangular column and the rectangular hole.

As described above, the positioning member 820 can be bent and protruded from the inner wall of the interface housing 82. In other words, the positioning member 820 is integrally formed with the interface housing 82 without using a process such as welding, thereby saving production. cost.

In the present embodiment, the interface housing 82 may specifically be provided with a guide groove 821 and a pressing member (not shown). The guiding groove 821 extends through the interface housing 82 and communicates with the card slot (or the receiving cavity). The pressing member is movably disposed along the guiding slot 821 and partially formed in the card slot, and the pushing member is used to push the smart card 83 to exit. The card slot (or the receiving cavity), as described above, can push the smart card 83 out of the card slot when the pressing member is pressed, and the user can take out the smart card 83 by the cooperation manner of the guiding groove 821 and the pushing member. , improved user experience.

The USB connection device of the present embodiment may further include an outer casing (not shown). The printed circuit board 80 is tightly disposed in the accommodating space formed by the outer casing, and the interface end and the interface housing 82 are exposed outside the outer casing for use with the USB. The slot is inserted, and the specific structure thereof is within a range that can be easily understood by those skilled in the art, and will not be described in detail.

The application makes full use of the fixed volume space at the interface end, and reduces the accommodation space reserved for the smart card 83 in the high heat-generating area of the USB connection device, which is beneficial to the thinning and thinning of the product. The application can further reduce the overall thickness of the outer casing, so that the obtained USB connecting device is light and thin, and can effectively protect the smart card 83 from being burnt out, etc., and thus is more practical.

In the present application, a USB connection terminal is disposed on the first surface 801 of the interface end of the printed circuit board 80, and a card connection terminal 810 is disposed on the second surface 802 of the interface end, and the smart card 83 is fixed to the second surface 802 by a fixing mechanism, so that the working time is The smart card 83 can be away from the high heat-generating area of the printed circuit board 80, reduce the heat generated by the printed circuit board 80 during operation, and can effectively avoid the problem of damage to the smart card 83 due to overheating, and reduce the problem. The necessary loss.

Embodiment 4 Referring to FIG. 9 and FIG. 10, the present application further provides a printed circuit board 90 that can be used for a USB connection device, wherein the USB connection device can be used to read a smart card 93 such as a SIM card or an SD card.

The printed circuit board 90 includes an interface for interfacing with a USB socket, specifically, printing The circuit board 90 includes a first circuit board 901 and a second circuit board 902 that are electrically connected, and the interface end is disposed on the first circuit board 901.

The interface end includes a first surface 903 for setting a USB connection terminal 91 of the USB connection device, and a second surface 904 for setting a card connection terminal 92 of the USB connection device, it is not difficult to see that A surface 903 and a second surface 904 are opposite sides of the first circuit board 901, respectively. In other words, the USB connection terminal 91 and the card connection terminal 92 are respectively disposed on opposite sides of the interface end. Compared with the prior art, the card connection terminal 92 is disposed at the working end of the high heat generating area, and the present application can effectively Reducing the heat radiated by the printed circuit board 90 during the operation of the smart card 93 can also avoid the problem of damaging the smart card 93 due to overheating of the working end of the high heat generating zone, thereby reducing unnecessary losses.

In order to achieve a stable connection between the first circuit board 901 and the second circuit board 902, the first circuit board 901 and the second circuit board 902 may be connected by soldering. At the same time, a first positioning hole 9011 is disposed on the first circuit board 901, a second positioning hole 9022 is disposed on the second circuit board 902, and then the first positioning hole 9011 and the second positioning hole are penetrated through the positioning member such as a rivet or a screw. 9022 to achieve a stable electrical connection between the first circuit board 901 and the second circuit board 902. The first positioning hole 9011 and/or the second positioning hole 9022 are made of a polygonal hole (such as a rectangular hole), and the positioning member is a corresponding polygonal column (such as a rectangular column), and the rectangular column and the rectangular hole are matched. The pivoting between the first circuit board 901 and the second circuit board 902 is effectively prevented, thereby achieving a stable connection.

In addition, the end of the second circuit board 902 connected to the first circuit board 901 is provided with a limiting slot 9021. The limiting slot 9021 is used for fixing the smart card 93, and the smart card 93 can be prevented from shaking by the limiting slot 9021.

In the present embodiment, the second surface 904 can be specifically used to provide a card holder 920 for the USB connection device, and the card holder 920 is used to set the card connection terminal 92. In other embodiments, the USB connection terminal 91 and/or the card connection terminal 92 can be formed on the first circuit board 901 in an integrated manner, which is not limited herein.

For the other specific structures of the printed circuit board 90 of the present application, please refer to the related descriptions of the foregoing one or more embodiments, and those skilled in the art can easily understand the scope of the present invention.

The present application sets a USB connection terminal 91 on the first surface 903 of the interface end of the printed circuit 90. And the card connection terminal 92 is disposed on the second surface 904 of the interface end, so that the smart card 93 is fixed to the second surface 904. When working, the smart card 93 can be away from the high heat-generating area of the printed circuit board 90, and the printed circuit board 90 is reduced when it is working. The heat of the smart card 93 can also effectively avoid the problem of damage to the smart card 93 due to overheating, reducing unnecessary losses.

Embodiment 5 Referring to FIG. 11, the present application also provides a printed circuit board 110 that can be used for a USB connection device, wherein the USB connection device can be used to read a smart card 112 such as a SIM card or an SD card.

The printed circuit board 110 of the present embodiment is formed in a formed manner including an interface end for interfacing with a USB slot. The interface end includes a first surface 1101 and a second surface 1102. The first surface 1101 is used to set a USB connection terminal (not shown) of the USB connection device, and the second surface 1102 is used to set the card connection terminal 1110 of the USB connection device. It is difficult to see that the first surface 1101 and the second surface 1102 are respectively opposite sides of the printed circuit board 110.

In other words, the USB connection terminal and the card connection terminal 1110 are respectively disposed on opposite sides of the interface end. Compared with the prior art, the card connection terminal 1110 is disposed at the working end of the high heat generating area, and the application can be effectively reduced. The heat radiated by the printed circuit board 110 during operation can affect the smart card 112, and the problem of damaging the smart card 112 due to overheating of the working end of the high heat generating area can be avoided, thereby reducing unnecessary losses.

In order to achieve a stable connection between the printed circuit board 110 and the USB connecting device, the positioning hole 1100 is disposed on the printed circuit board 110, and then the positioning hole 1100 of the positioning member such as a rivet or a screw can be used to realize the printed circuit board 110 and the USB connecting device. Stable electrical connection between. It should be noted that the positioning hole 1100 uses a polygonal hole (such as a rectangular hole), and the positioning member is a corresponding polygonal column (such as a rectangular column), and the rectangular column and the rectangular hole are matched to effectively prevent the printed circuit. Looseness between the board 110 and the USB connection device, thereby achieving a stable connection.

In the present embodiment, the second surface 1102 can be specifically used to set the card holder 111 of the USB connection device, and the card holder 111 is used to set the card connection terminal 1110. In other embodiments, the USB connection terminal and/or the card connection terminal 1110 can be formed on the printed circuit board 110 in an integrated manner, which is not limited herein.

The second surface 1102 is provided with a receiving slot, and the card of the USB connecting device is fixed by the receiving slot. The seat 111, specifically, the second surface 1102 is hollowed out and forms a first side wall 1103, a second side wall 1104, and a recessed area 1105 between the first side wall 1103 and the second side wall 1104, the first side The wall 1103, the second side wall 1104, and the recessed area 1105 cooperate to form a receiving groove. In this way, the size and weight of the USB connecting device can be further reduced.

For the other specific structures of the printed circuit board 110 of the present application, please refer to the related descriptions of the foregoing one or more embodiments, which are not described in detail within the scope of those skilled in the art.

The present application provides a USB connection terminal at the first surface 1101 of the interface end of the printed circuit 110 and a card connection terminal 1110 at the second surface 1102 of the interface end, so that the smart card 112 is fixed to the second surface 1102, and the smart card 112 can be remote from printing during operation. The high heat-generating area of the circuit board 110 reduces the influence of the heat radiated by the printed circuit board 110 on the smart card 112, and can effectively avoid the problem of damaging the smart card 112 due to overheating, thereby reducing unnecessary losses.

The above description is only the embodiment of the present application, and is not intended to limit the scope of the application, and the equivalent structure or equivalent process transformation using the content of the specification and the drawings of the present application, or directly or indirectly applied to other related technologies. The scope of the invention is included in the scope of patent protection of this application.

Claims

Claim

A USB connection device, comprising: a printed circuit board, a USB connection terminal, and a card connection terminal, the printed circuit board including an interface end for interfacing with a USB socket, The USB connection terminal is disposed on the first surface of the interface end, the card connection terminal is disposed on the second surface of the interface end, and the second surface is provided with a fixing mechanism for fixing the smart card.

2. The USB connection device according to claim 1, wherein the USB connection device further comprises an interface housing, and the interface housing and the second surface cooperate to form the fixing mechanism, The fixing mechanism is a card slot.

The USB connection device according to claim 2, wherein the printed circuit board comprises a first circuit board and a second circuit board that are electrically connected, and the interface end is disposed on the first circuit board. The first surface and the second surface are respectively opposite sides of the first circuit board.

The USB connection device according to claim 3, wherein the end of the second circuit board connected to the first circuit board is provided with a limiting slot, and the limiting slot cooperates with the card slot Forming a receiving cavity for fixing the smart card.

The USB connection device according to claim 4, wherein the accommodating cavity is provided with a card insertion opening, and the card insertion opening is disposed on an end surface of the USB connecting device and the USB socket .

The USB connection device according to claim 3, wherein the first circuit board is provided with a first positioning hole, and the second circuit board is provided with a second positioning hole, the interface housing A positioning member is disposed thereon, and the first circuit board and the second circuit board pass through the first positioning hole and the second positioning hole through the positioning member to achieve a stable connection.

7. The USB connection device according to claim 6, wherein the positioning member is bent and formed from an inner wall of the interface housing.

The USB connection device according to claim 3, wherein the interface housing is respectively soldered to the first circuit board and the second circuit board by surface mount technology, or is attached to the interface The first circuit board and the second circuit board.

The USB connection device according to any one of claims 3 to 8, wherein The USB connection terminal and/or the card connection terminal are integrally formed on the first circuit board.

10. The USB connection device according to claim 9, wherein the first circuit board and the second circuit board are connected by soldering.

11. The USB connection device according to claim 9, wherein the card connection terminal is a metal dome.

The USB connection device according to any one of claims 3 to 8, wherein the USB connection device further includes a card holder electrically connected to the first circuit board, and the card connection terminal is disposed at the Said on the deck.

13. The USB connection device according to claim 12, wherein the card holder is soldered to the first circuit board by a surface mount technology.

The USB connection device according to claim 1, wherein the USB connection device further comprises a card holder for arranging the card connection terminal, and the second surface is provided with a receiving slot, the card holder It is fixed in the accommodating groove and electrically connected to the interface end.

15. The USB connection device according to claim 14, wherein the second surface is hollowed out and forms a first sidewall, a second sidewall, and the first sidewall and the second sidewall The recessed area between the first side wall, the second side wall and the recessed area cooperate to form the receiving groove.

The USB connection device according to any one of claims 2 to 8, wherein the interface housing is further provided with a guiding slot and a pressing member, and the guiding slot penetrates the interface housing The body is connected to the card slot, and the pushing member is disposed along the guiding groove and partially formed in the card slot, and the pushing member is used for pushing the smart card to exit the card slot.

The USB connection device according to any one of claims 2 to 8, wherein the USB connection device further includes an outer casing, and the printed circuit board is closely disposed on the outer casing. In the accommodating space, the interface end and the interface housing are exposed outside the outer casing for being inserted into the USB socket.

18. A printed circuit board for a USB connection device, wherein the printed circuit board includes an interface end for interfacing with a USB socket, the interface end comprising:

a first surface, a USB connection terminal for setting a USB connection device;

The second surface is used to set a card connection terminal of the USB connection device.

The printed circuit board according to claim 18, wherein the printed circuit board comprises a first circuit board and a second circuit board that are electrically connected, and the interface end is disposed on the first circuit board. The first surface and the second surface are respectively opposite sides of the first circuit board.

The printed circuit board according to claim 19, wherein the end of the second circuit board connected to the first circuit board is provided with a limiting slot, and the limiting slot is used for fixing the smart card.

The printed circuit board according to claim 19 or 20, wherein the USB connection terminal and/or the card connection terminal are integrally formed on the first circuit board.

The printed circuit board according to claim 18, wherein the second surface is provided with a receiving groove, the receiving groove is for fixing a card holder of the USB connecting device, and the card seat is used for Set the card connection terminal.

23. The printed circuit board of claim 22, wherein the second surface is hollowed out and forms a first sidewall, a second sidewall, and the first sidewall and the second sidewall The recessed area between the first side wall, the second side wall and the recessed area cooperate to form the receiving groove.