WO2012051889A1

WO2012051889A1 - Usb connector device

Info

Publication number: WO2012051889A1
Application number: PCT/CN2011/079221
Authority: WO
Inventors: 何孝君; 朱怀照
Original assignee: 深圳市富业达实业发展有限公司
Priority date: 2010-10-20
Filing date: 2011-09-01
Publication date: 2012-04-26
Also published as: CN201937036U

Abstract

A USB connector device comprises a support member (2) and a metal housing (1) disposed to closely surround the support member. The support member is of a step-like structure and comprises an upper step portion (22) and a lower step portion (21). A metal contact terminal (3) is disposed on an upper surface of the lower step in a longitudinal direction from the lower step portion to the upper step portion. The metal contact terminal is integrally formed with the support member, and a rear end (32) of the metal contact terminal protrudes from the lower step portion so as to be electrically connected to a PCB (4) on a lower surface of the upper step portion of the support member. A lower surface of the lower step portion is in close contact with the metal housing, and a cavity for plugging a matching USB connection base is formed between the upper surface of the lower step portion and the metal housing. The USB connector device can enhance the antistatic effect, reduce the area of the PCB, improve the matching effect between the USB connector device and a female connector receptacle, simplify the process and lower the cost.

Description

USB connector device

Technical field

The present application relates to a connector device, in particular a USB connector device, such as a connector plug for a mobile storage device, a USB cable, and the like.

Background technique

Among the interfaces between existing various electronic devices (such as mobile storage devices, computers, MP3 players, etc.), USB connector devices have become a common interface. A conventional USB connector device (ie, a series A USB connector) includes a carrier board and a metal case disposed around the carrier board, and the carrier board is provided with a metal contact terminal, the metal contact terminal and the printed circuit board (ie, the PCB) Board) or USB electronic application module connection. In practice, the printed circuit board (ie, the PCB board) is often exposed, or at least isolated from the outside world, resulting in poor anti-static effects of the USB connector device. Moreover, the area of the PCB board tends to be large, which affects the cooperation of the USB connector device and its female connector socket, and affects the user experience of the electronic device.

If the metal shell is integrally formed with the carrier plate, the obtained USB connector device will have a better antistatic effect, but the processing process of the USB connector device is complicated and costly.

Therefore, there is a need for a USB connector device that is excellent in antistatic effect, small in size, convenient in processing, and low in cost.

Summary of the invention

The purpose of the application is to provide a USB connector device, which can solve the problem of improving the antistatic effect, reducing the area of the PCB board, simplifying the processing procedure, and improving the cooperation effect between the USB connector device and the female connector socket thereof. And technical issues such as product quality.

The present application adopts the following technical solution: a USB connector device comprising a support member and a metal shell disposed tightly around the support member, wherein the support member is a stepped structure including an upper step portion and a lower step portion; The upper surface of the step portion is provided with a metal contact terminal along a longitudinal direction from the lower step portion to the upper step portion, the metal contact terminal is integrally formed with the support member, and a rear end of the metal contact terminal protrudes from the lower step portion Electrically connecting to a PCB board provided on a lower surface of the upper step portion of the support member; a lower surface of the lower step portion is in close contact with the metal shell, and an upper surface of the lower step portion and the metal shell A cavity for mating with a corresponding USB connector is formed therebetween.

Preferably, the lower step portion and the upper step portion each have a rectangular shape.

The lower surface of the upper step portion includes a recess or a central portion of the upper step portion is vertically penetrated to facilitate accommodation of the PCB board. This makes full use of the space on the board and under the PCB, so that the number of layers of the PCB is increased, and / or more electronic components are placed on the PCB.

Preferably, the lower surface of the lower step portion includes a recess.

Preferably, the lower surface of the upper step portion includes a protrusion for supporting the upper step portion.

Preferably, the rear end of the metal contact terminal protrudes in a direction perpendicular to the lower surface of the lower step portion.

Preferably, a front end of the metal contact terminal is buried in the lower step portion, and an intermediate portion between a front end and a rear end of the metal contact terminal includes an upwardly facing protrusion.

Preferably, the end of the metal contact terminal has a width smaller than the width of the intermediate portion, and the front end of the metal contact terminal is bent downward 900 and then bent forward 900 to form a stepped shape.

Preferably, the support is made of plastic.

Preferably, the support has elasticity.

Compared with the prior art, the technical solution of the present application adopts integrally forming a metal contact terminal with a stepped support member, and the PCB board is disposed on a lower surface of the upper step portion of the support member, and the metal shell and the support member are Close contact, which makes the PCB board isolated from the outside, improves the anti-static effect, reduces the area of the PCB board, improves the matching effect and product quality of the USB connector device and the female connector socket; in addition, the support member and the PCB board are When assembled together after being manufactured separately, the process requirements are lower.

DRAWINGS

1 is a schematic structural view of a USB connector device in an embodiment of the present application, in which the back structure of the USB connector device is shown in detail.

2 is a schematic structural view of a support member of a USB connector device according to an embodiment of the present invention, wherein a metal contact terminal is disposed on an upper surface of the support member.

3 is a schematic structural view of a USB connector device in an embodiment of the present application, in which a metal case is not shown.

4 is a perspective view of a USB connector device in accordance with an embodiment of the present application.

FIG. 5 is a schematic structural view of a metal contact terminal according to an embodiment of the present application.

FIG. 6 is a schematic structural view of a metal contact terminal according to an embodiment of the present application.

Figure 7 is a cross-sectional view of the intermediate portion of the metal contact terminal of an embodiment of the present application.

DETAILED DESCRIPTION OF THE INVENTION

The present application will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1, 2, 3 and 4, the USB connector device of the present application includes a support member 2 and a metal shell 1 disposed closely around the support member 2, the support member 2 being a stepped structure including an upper step portion 22 And a lower step portion 21; a metal contact terminal 3 is provided on the upper surface of the lower step portion 21 in a longitudinal direction from the lower step portion 21 to the upper step portion 22 (i.e., the Z direction in Fig. 2), the metal contact terminal 3 integrally formed with the support member 2, and the rear end of the metal contact terminal 3 protrudes from the lower step portion 21 to be electrically connected to the PCB board 4 provided on the lower surface of the upper step portion 22 of the support member 2; The lower surface of the step portion 21 is in close contact with the metal shell 1, and a cavity for inserting with the corresponding USB connector is formed between the upper surface of the lower step portion 21 and the metal shell 1. .

For example, the metal contact terminal 3 is injection-molded and integrally molded with the support member 2, and the metal shell 1 is snapped to the outside of the support member 2. As shown in FIG. 1 , due to the close cooperation of the support member 2 of the stepped structure and the metal shell 1 , the PCB board 4 is substantially hidden under the upper step portion 22 of the support member 2, and is isolated from the outside, thereby improving the PCB board 4 . Anti-static effect. The electrical connection of the metal contact terminal 3 to the PCB board 4 can be achieved by soldering. Of course, the electrical connection can also be achieved by any conventional means such as snapping.

In one embodiment, as shown in FIG. 2, the lower step portion 21 and the upper step portion 22 are each substantially rectangular in shape and overlap each other. In order to facilitate accommodation of the PCB board, the lower surface of the upper stepped portion 22 includes a recess or a central portion thereof is vertically penetrated (as shown in FIG. 2); the lower surface of the upper stepped portion 22 may include a protrusion for supporting the upper stepped portion 22. Further, on the lower surface of the lower step portion 21, a flange may be formed along the periphery to form a concave portion on the lower surface.

In one embodiment, the support 2 can be made of plastic. The plastic may also have elasticity such that the contact of the support 2 with the metal shell 1 is more tight. Of course, the support 2 can also be made of other insulating materials.

As shown in FIGS. 1 and 3, the rear end of the metal contact terminal 3 projects in a direction perpendicular to the lower surface of the lower step portion 21. The front end of the metal contact terminal 3 is buried in the lower step portion 21, and the intermediate portion between the front end and the rear end of the metal contact terminal 3 includes an upwardly facing projection, that is, the contact portion 6, as shown in FIG. Conducive to such a structure, the metal contact terminal 3 and the support member 2 are very tightly coupled, so that the service life is long. Moreover, when the USB connector device is connected to the corresponding USB female connector socket, the electrical contact between the metal contact terminal 3 and the corresponding metal contact terminal of the USB female connector socket is stable, and the contact resistance is low.

As shown in FIGS. 5 and 6, the width of the rear end portion 32 of the metal contact terminal 3 is smaller than the width of the bent portion 31 and the intermediate portion (ie, the contact portion 6), and the front end of the metal contact terminal 3 is bent downward 900. Then bend forward 90o to form a step shape, as shown in Figure 6. FIG. 7 shows a schematic cross section of the contact portion 6.

When the USB connector device is fabricated, the metal contact terminal 3 is first placed in the mold of the support member 2, integrally formed with the support member 2, and the assembly with the metal contact terminal 3 is obtained; then, the PCB board 4 is placed on the support member. The lower surface of the upper step portion of the metal, the rear end portion 32 of the metal contact terminal 3 passes through the connection hole of the PCB board 4, and is electrically connected to the PCB board 4, for example, by soldering; the USB metal case 1 is attached to the support member from the back to the back. 2, and fixed in place, the front end of the support member 2 is flush with the USB metal shell 1. The USB connector device proposed in the present application is thus obtained.

Claims

A USB connector device comprising a support member (2) and a metal shell (1) disposed tightly around the support member (2), characterized in that the support member (2) is a stepped structure including an upper step portion ( 22) and a lower step portion (21); a metal contact terminal (3) is provided on an upper surface of the lower step portion (21) in a longitudinal direction from the lower step portion (21) to the upper step portion (22), The metal contact terminal (3) is integrally formed with the support member (2), and the rear end of the metal contact terminal (3) protrudes from the lower step portion (21) to be disposed on the upper step of the support member (2) a PCB board (4) of a lower surface of the portion (22) is electrically connected; a lower surface of the lower step portion (21) is in close contact with the metal shell (1) on an upper surface of the lower step portion (21) A cavity for mating with a corresponding USB connector is formed with the metal case (1).
The USB connector device according to claim 1, wherein said lower step portion (21) and upper step portion (22) each have a rectangular shape.
The USB connector device according to claim 1, wherein a lower surface of said upper stepped portion (22) includes a recess or a central portion of said upper stepped portion (22) is vertically penetrated to facilitate receiving a PCB Board (4).
The USB connector device according to claim 1, wherein the lower surface of the lower step portion (21) includes a recess.
The USB connector device according to claim 1, wherein the lower surface of the upper step portion (22) includes a protrusion for supporting the upper step portion (22).
A USB connector device according to any one of claims 1 to 5, characterized in that the rear end of the metal contact terminal (3) extends in a direction perpendicular to the lower surface of the lower step portion (21) Out.
The USB connector device according to any one of claims 1 to 5, wherein a front end of the metal contact terminal (3) is buried in the lower step portion (21), and the metal contact terminal The intermediate portion between the front end and the rear end of (3) includes an upwardly protruding protrusion.
The USB connector device according to claim 7, wherein an end portion width of a rear end of said metal contact terminal (3) is smaller than a width of said intermediate portion, and a front end of said metal contact terminal (3) is oriented After bending down 900, it is bent forward 900 to form a step shape.
A USB connector device according to claim 1, characterized in that the support (2) is made of plastic.
A USB connector device according to claim 9, characterized in that the support (2) has elasticity.