WO2011140703A1

WO2011140703A1 - Plastic fiber connector

Info

Publication number: WO2011140703A1
Application number: PCT/CN2010/072625
Authority: WO
Inventors: 王七月; 贺水兰
Original assignee: 深圳日海通讯技术股份有限公司
Priority date: 2010-05-11
Filing date: 2010-05-11
Publication date: 2011-11-17

Abstract

A plastic fiber connector is disclosed. The plastic fiber connector includes: a housing (3)with a receiving cavity, and socket (30)which receives a fiber(F)in the receiving cavity; a fiber clamp (2)received in the receiving cavity, which has a necking structure matching the socket (30)to make the socket pinch the plastic fiber (F); the fiber clamp (2)has a first lateral plate and a second lateral plate on its two sides, and the first lateral plate and second lateral plate have buckle structures (221); the two lateral sides of the receiving cavity have buckle mouths (111)matching the buckle structures. The connector also includes: two gliding blocks (310)which are mounted between the first and second lateral plates and the lateral sides of the receiving cavity to make the buckle structures (221)detach from the buckle mouths(111), an elastic element(400) mounted on the bottom of the receiving cavity, and pressing the fiber clamp (2)with a preset pressure. The plastic fiber connecter can firmly hold the fiber(F), only when the two side gliding blocks(310) are pressed at the same time, the fiber clamp(2) can detach from the receiving cavity.

Description

Plastic fiber optic connector

Technical field

The present invention relates to physical connection technology in the field of optical communications, and more particularly to a plastic optical fiber connector.

Background technique

Plastic optical fiber (POF, Polymer Optical As an alternative to quartz fiber, Fiber) is a low-cost, lightweight, and easy-to-install data transmission medium. It is especially suitable for systems with short distances, small and medium capacity, and many connectors (such as access networks). Compared with multimode quartz fiber, plastic fiber is softer, easier to install and maintain. It is especially important that the POF core diameter is usually 0.5mm or larger, while the multimode quartz fiber core diameter is 62.5 microns or 50 microns. 10 times POF connection alignment is easy. For a stepped POF with a core diameter of 980 μm and a graded POF with a core diameter of 500 μm, even a ±30 μm offset in the connection does not seriously affect the coupling loss. (Approx. 0.03dB increase in loss), inexpensive injection molded connectors can be used, significantly reducing the overall cost of the system.

Due to the above characteristics of the plastic optical fiber, the plastic optical fiber can be connected to the optical component or other optical fiber without mounting the plug on the optical fiber. An optical connector for connecting plastic optical fibers, including a housing with a socket, and a clamping member for fixing the optical fiber in the socket of the housing is disclosed in a Chinese patent application CN200780030090.7. . Since the clamping member is fixed in the housing only by the frictional force, the fixing force of the clamping member to the optical fiber is limited. When the optical fiber is inserted into the connector, the user may inevitably kick or pull the optical fiber when walking, and the optical fiber is easy. The occurrence of detachment occurs, and the end portion of the holding member is exposed more, which is easily caught or caught by the foreign object, and the clamping member is easily released together with the optical fiber, which causes a lot of trouble for the user. In order to solve the above problems, the optical fiber connector has been improved. For example, a Chinese patent ZL200820133519.7 discloses a hook structure of a fiber optic connector, and a shrapnel is added to the fiber holding member, and the shrapnel is disposed on the shell. The snap blocks on the body are fastened to maintain a relatively stable connection between the fiber holder and the housing, so that the optical fiber and the fiber holder are less likely to loosen. However, the connector can also have the problem that the end of the optical fiber holding member is exposed and is easily touched or caught. In addition, the locking structure of the hook structure is small, and the child can also play while playing. Easily pull out the fiber holder and open the hook structure to loosen the fiber, which has certain safety hazards.

Summary of the invention

SUMMARY OF THE INVENTION It is an object of the present invention to provide a plastic optical fiber connector that both securely holds the optical fiber and allows the optical fiber to be easily disengaged when needed, and also prevents loosening of the optical fiber connector caused by mishandling of a child.

The technical solution adopted by the present invention to solve the technical problem is to construct a plastic optical fiber connector, including:

a housing having a receiving cavity, the receiving cavity having an opening structure for receiving and shrinking a socket for holding a plastic optical fiber;

a fiber holding member housed in the receiving cavity, the fiber holding member having a shrinking structure adapted to the socket for shrinking and holding the plastic optical fiber;

The fiber holder has a first side plate and a second side plate on both sides thereof, the first side plate and the second side plate have an inverted structure, and two side walls of the receiving cavity have the same The buckle of the inverted buckle structure is adapted;

The connector further includes:

a slider disposed between the first side plate and the side wall of the receiving cavity and between the second side plate and the side wall of the receiving cavity for disengaging the buckle structure from the buckle position;

An elastic member disposed at a bottom of the housing chamber, the elastic member abutting against the fiber holder at a predetermined pressure.

In the plastic optical fiber connector of the present invention, the first side panel includes an upper portion, a middle portion, and a lower portion extending in the same direction, the upper portion and the lower portion having the reverse buckle structure, and for the reverse buckle The structure is disengaged from the buckled structure, the middle portion has a stopper, the stopper is located on the same plane as the slider, and the second side panel is identical in structure to the first side panel.

In the plastic optical fiber connector of the present invention, the slider has a limiting protrusion, and the side wall of the receiving cavity has a limiting guiding chute adapted to the limiting protrusion.

In the plastic optical fiber connector of the present invention, the tripping structure is a beveled bump having a bevel, and the slider has a triggering ramp that cooperates with the bevel.

In the plastic optical fiber connector of the present invention, when the triggering slope of the slider pushes the slope of the tripping bump to disengage the buckle structure from the buckle, between the slider and the stopper Has a transition gap.

In the plastic optical fiber connector of the present invention, the elastic member is a spring, and the bottom of the housing chamber has a spring seat.

In the plastic optical fiber connector of the present invention, the rear end of the slider has a pressing platform, and the slider and the pressing platform are disposed in an "L" shape.

In the plastic optical fiber connector of the present invention, the socket is of a cylindrical structure, and the cylindrical wall of the cylinder is provided with a strip-shaped opening extending in the axial direction.

In the plastic optical fiber connector of the present invention, the constricted structure is a conical surface.

A second object of the present invention is to provide a fiber optic connector, comprising: a housing having a receiving cavity, the receiving cavity having a socket for receiving and shrinking a plastic optical fiber; and a fiber holder received in the receiving cavity The two sides of the optical fiber clamping member are snap-connected to the two side walls corresponding to the receiving cavity, and two sides of the optical fiber clamping member are provided between the two side walls corresponding to the receiving cavity for Opening the buckle to connect the two sliders, the fiber holder can be released from the housing only when the two sliders are simultaneously pressed.

The plastic optical fiber connector of the present invention has the following beneficial effects: in the present invention, both sides of the optical fiber holding member have an inverted structure, and the optical fiber holding member is elastic only when the two sliding blocks are simultaneously pressed. The plastic optical fiber connector of the present invention can firmly hold the optical fiber when the state is in the state, and can be easily disengaged by the simultaneous pressing of the two side sliders to the designated position when needed, and at the same time When the single-sided slider is pressed, the optical fiber can be firmly held, so that the optical fiber can be prevented from being loosened by the child's misoperation.

DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

Figure 1 is a schematic illustration of a preferred embodiment of a plastic optical fiber connector of the present invention;

Figure 2 is a front elevational view of a preferred embodiment of a plastic optical fiber connector of the present invention;

Figure 3 is a cross-sectional view taken along line A-A of Figure 2;

Figure 4 is a schematic illustration of a housing of a preferred embodiment of a plastic optical fiber connector of the present invention;

Figure 5 is a cross-sectional view of the outer casing of a preferred embodiment of the plastic optical fiber connector of the present invention;

Figure 6 is a schematic illustration of a fiber optic holder of a preferred embodiment of a plastic optical fiber connector of the present invention;

Figure 7 is a cross-sectional view of a fiber holder of a preferred embodiment of the plastic optical fiber connector of the present invention;

Figure 8 is a schematic illustration of a slider of a preferred embodiment of a plastic optical fiber connector of the present invention;

Figure 9 is a schematic illustration of another angle of the slider of the preferred embodiment of the plastic optical fiber connector of the present invention;

Figure 10 is a schematic view of the preferred embodiment of the plastic optical fiber connector of the present invention with the slider located at the outermost side;

Figure 11 is a schematic view showing the slide portion inwardly and inwardly in a preferred embodiment of the plastic optical fiber connector of the present invention;

Figure 12 is a cross-sectional view of Figure 11 .

detailed description

For a better understanding of the technical features, objects and effects of the present invention, the embodiments of the present invention are described in detail with reference to the accompanying drawings.

As shown in Figures 1, 2 and 3, a preferred embodiment of the plastic optical fiber connector of the present invention is shown. Referring to FIG. 4 and FIG. 5, the embodiment includes a housing 100 having a receiving cavity 110. The receiving cavity 110 is provided with a socket 120 for receiving the plastic optical fiber 500. The socket 120 can function as the optical fiber clamping member 200. The plastic fiber 500 is clamped under the contraction; the socket 120 is a cylinder, and the plastic optical fiber 500 is accommodated in the cylinder. The cylindrical wall of the cylinder is provided with a strip-shaped opening 121 extending in the axial direction, so that the socket 120 is subjected to the optical fiber clamping member. The squeezing can be contracted, and the socket 120 is shrunk to firmly hold the plastic optical fiber 500 therein without being loosened.

Referring to FIGS. 6 and 7, the fiber holder 200 is received in the housing cavity 110, and the fiber holder 200 has a shrink structure 210 adapted to the socket 120 for shrinking and holding the plastic optical fiber 500; In the embodiment, the constricted structure 210 is a conical surface. When the optical fiber holder 200 is inserted into the receiving cavity 110, the conical surface presses the socket 120 to shrink the socket 120 to clamp the plastic optical fiber 500 therein. The fiber holder 200 has a first side plate 220 and a second side plate 230 on both sides thereof. The first side plate 220 and the second side plate 230 have inverted

structures

221 and 231, and the two side walls of the receiving cavity 110 have The

buckles

111, 112 are adapted to the

undercut structures

221, 231; this embodiment further includes a sidewall disposed between the first side panel 220 and the side wall of the receiving cavity 110 and the second side panel 230 and the side of the receiving cavity 110 Between the

sliders

310, 320 for disengaging the

undercut structures

221, 231 from the

buckles

111, 112; the bottom of the housing cavity 110 is provided with an elastic member 400, and the elastic member 400 is pressed against the optical fiber with a predetermined pressure. On piece 200.

Since the structures of the first side plate 220 and the second side plate 230 are the same, and the center plane symmetry of the two is the same, the first side plate 220 has been exemplified for its structure. The first side plate 220 includes an upper portion 222, a middle portion 223, and a lower portion 224 extending in the same direction, the upper portion 222 and the lower portion 224 having an inverted structure 221 and a tripping structure 225 for disengaging the inverted structure 221 from the buckle 111 The middle portion 223 has a stopper 226, and the stopper 226 is located on the same plane as the slider 310. The trip structure 225 is a beveled bump having a trigger ramp 311 that mates with the ramp.

The structure of the slider 310 and the slider 320 are the same. The slider 310 is taken as an example to describe the structure of the slider. Referring to FIG. 3, FIG. 8 and FIG. 9, the slider 310 has a limiting protrusion 312, and the sidewall of the receiving cavity 110 has a limiting guiding slot 113 adapted to the limiting protrusion 312. The rear end of the slider 310 has a pressing platform 313. The slider 310 and the pressing platform 313 are disposed in an "L" shape. The pressing platform 313 is for convenient pressing of the slider, and has a large area for convenient use.

Referring to Figures 10, 11 and 12, in order to ensure that after pressing the

sliders

310, 320, the fiber holder 200 can be ejected, with a transition gap between the slider 320 and the stop 226, when the trigger ramp of the slider 310 When the 311 pushes the slope of the trip bump to disengage the buckle structure 221 from the buckle 111, the fiber holder 200 can continue to move outward until the stopper 226 abuts on the slider 310 under the action of the elastic member 400. When the slider 310 is loosened, since the undercut structure 221 has been detached from the buckle 111, the optical fiber holder 200 can be completely loosened by the elastic member 400. At this time, the plastic optical fiber 500 can be detached or mounted as needed.

In the present embodiment, the elastic member 400 is a spring, and the bottom of the housing chamber 110 has a spring seat.

In the present invention, both sides of the optical fiber holding member have an inverted structure, and only when the two sliding blocks are simultaneously pressed, the optical fiber holding member is released by the elastic member, and when only one of the sliding members is pressed, At the time of the block, the fiber holder can still firmly keep the fiber from loosening. Therefore, the plastic optical fiber connector of the present invention can not only firmly hold the optical fiber, but also allows the optical fiber to be easily disengaged when needed, and also prevents the optical fiber from being loosened by misoperation of children.

The object of the present invention is to provide a safe and reliable plastic optical fiber connector having a housing with a receiving cavity, wherein the receiving cavity has a socket for receiving and shrinking the plastic optical fiber; the optical fiber clamping member is received in the receiving cavity. Two sides of the optical fiber clamping member are snap-connected to the two side walls corresponding to the receiving cavity, and two sides of the optical fiber clamping member and the two side walls corresponding to the receiving cavity have a slider for opening the buckle connection The fiber holder can be released from the housing only when the two sliders are simultaneously pressed. As long as the plastic optical fiber connector satisfying the above structure is within the scope of the protection of the present invention, the specific snap connection structure may have various deformation structures without departing from the gist of the present invention.

The embodiments of the present invention have been described above with reference to the drawings, but the present invention is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative and not restrictive, and those skilled in the art In the light of the present invention, many forms may be made without departing from the spirit and scope of the invention as claimed.

Claims

A plastic fiber optic connector comprising:

a housing having a receiving cavity having a socket for receiving and contracting a plastic optical fiber; a fiber holding member housed in the receiving cavity, the fiber holder having a socket a necking structure for shrinking the socket and holding the plastic optical fiber;

It is characterized by:

The fiber holder has a first side plate and a second side plate on both sides thereof, the first side plate and the second side plate have an inverted structure, and two side walls of the receiving cavity have the same The buckle of the inverted buckle structure is adapted;

The connector further includes:

a slider disposed between the first side plate and the side wall of the receiving cavity and between the second side plate and the side wall of the receiving cavity for disengaging the buckle structure from the buckle position;

An elastic member disposed at a bottom of the housing chamber, the elastic member abutting against the fiber holder at a predetermined pressure.
A plastic optical fiber connector according to claim 1, wherein said first side panel includes an upper portion, a middle portion, and a lower portion extending in the same direction, said upper portion and lower portion having said inverted structure, and The reverse buckle structure is separated from the buckled buckle structure, the middle portion has a stopper, the stopper is located on the same plane as the slider, and the second side panel has the same structure as the first side panel .
The plastic optical fiber connector according to claim 2, wherein the slider has a limiting protrusion, and the side wall of the receiving cavity has a limit guiding slide adapted to the limiting protrusion. groove.
The plastic optical fiber connector according to claim 2, wherein the tripping structure is a beveled bump having a bevel, and the slider has a triggering ramp that cooperates with the bevel.
The plastic optical fiber connector according to claim 4, wherein the slider is driven by the triggering ramp of the slider to push the bevel of the tripping bump to disengage the buckle structure There is a transition gap between the stops.
The plastic optical fiber connector of claim 1 wherein said resilient member is a spring and the bottom of said receiving chamber has a spring seat.
The plastic optical fiber connector according to claim 1, wherein a rear end of the slider has a pressing platform, and the slider and the pressing platform are disposed in an "L" shape.
The plastic optical fiber connector according to claim 1, wherein said socket is of a cylindrical structure, and said cylinder wall has a strip-shaped opening extending in the axial direction.
The plastic optical fiber connector of claim 1 wherein said constricted structure is a conical surface.
A plastic optical fiber connector comprising: a housing having a receiving cavity, wherein the receiving cavity has a socket for receiving and shrinking a plastic optical fiber; and a fiber holding member housed in the receiving cavity, wherein Two sides of the optical fiber clamping member are snap-connected to the two side walls corresponding to the receiving cavity, and two sides of the optical fiber clamping member have a side wall corresponding to the receiving cavity for opening the The buckle connects the two sliders, and the fiber holder can be released from the housing only when the two sliders are simultaneously pressed.