CN106711685B

CN106711685B - Protective cover and electric connector assembly

Info

Publication number: CN106711685B
Application number: CN201611210196.2A
Authority: CN
Inventors: 邬恒康; 彭付金
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Priority date: 2016-12-24
Filing date: 2016-12-24
Publication date: 2021-11-19
Anticipated expiration: 2036-12-24
Also published as: TWI711227B; CN106711685A; TW201828546A

Abstract

The invention discloses a protective cover which is used for being installed on a chip connector, and the protective cover comprises a main body part and a first clamping part arranged on the main body part, wherein the first clamping part is provided with a U-shaped clamping hook which is used for being clamped around a clamped object in a ring mode.

Description

Protective cover and electric connector assembly

[ technical field ] A method for producing a semiconductor device

The invention relates to a protective cover and an electric connector assembly, wherein the protective cover is arranged on an electric connector in a covering mode to play a role in protecting a conductive terminal of the electric connector.

[ background of the invention ]

Chinese utility model patent publication No. CN205212058U discloses an electrical connector assembly 100 having a dust cap 20, wherein the dust cap 20 is fastened to the pressing cover 12 by a fastening part 24. When the electrical connector assembly 100 is not mounted with a chip module, the dust cap 20 covers the insulating body 11 along with the cover 12, and after the chip module is mounted in the receiving cavity 13 of the electrical connector 10, the dust cap 20 covers along with the cover 12 by rotation, and at this time, the latching portion 24 is disengaged from the cover 12 when the pushing surface 220 is pressed by the chip module. However, pressing the dust cap 20 by the chip module to release the retaining portion 24 from retaining with the cover 12 is not good for the contact stability of the chip module, and on the other hand, the retaining portion 24 of the dust cap 20 is prone to wear.

Accordingly, there is a need for an improved electrical connector assembly that overcomes the above-mentioned deficiencies.

[ summary of the invention ]

The invention aims to provide a protective cover and an electric connector assembly with the protective cover, wherein the protective cover is stably buckled and is easy to detach.

The purpose of the invention is realized by the following technical scheme:

a protective cover is used for being installed on a chip connector and comprises a main body part and a first buckling part arranged on the main body part, wherein the first buckling part is provided with a U-shaped buckling hook used for being buckled around a buckled object in a ring mode.

Furthermore, the first buckling parts are arranged at opposite corners of the main body part in pairs, and the U-shaped buckles of the pair of first buckling parts have opposite opening directions.

Furthermore, the first buckling part is provided with an elastic arm part which is connected with the U-shaped clamping hook and the main body part.

Furthermore, the U-shaped clamping hook is provided with a pair of bulges which protrude in opposite directions to prevent the clamped object from being separated.

The purpose of the invention is realized by the following technical scheme:

an electric connector assembly comprises an electric connector, a fixed seat arranged around the electric connector in a frame mode and a protective cover fixed on the fixed seat, wherein the electric connector comprises an insulating body and a plurality of conductive terminals fixedly held on the insulating body, the insulating body is provided with a chip accommodating cavity, the conductive terminals protrude into the chip accommodating cavity, the protective cover comprises a main body part covered above the conductive terminals and a first buckling part arranged on the main body part, and the fixed seat is provided with a second buckling part mutually buckled and matched with the first buckling part; the first buckling part is provided with a U-shaped clamping hook, and the second buckling part is provided with an annular groove for accommodating the U-shaped clamping hook.

Furthermore, the first buckling parts are arranged in pairs and integrally extend outwards from opposite corners of the main body part, and each first buckling part comprises an elastic arm part connecting the U-shaped clamping hook and the flat plate part; when the protective cover is arranged on the fixed seat, the protective cover inclines a certain angle relative to the fixed seat so that the U-shaped clamping hook of one first clamping part is firstly clamped into the corresponding annular groove; when the protective cover is detached, a horizontal thrust is applied to the protective cover to drive one of the first buckling parts to extrude towards the corresponding second buckling part so as to generate elastic deformation, and the U-shaped hook of the other first buckling part is far away from and separated from the corresponding second buckling part.

Furthermore, the protection cover is provided with a pair of positioning parts at the other opposite angle of the main body part, the pair of positioning parts are provided with a large through hole and a small through hole, and the through holes are gradually expanded from top to bottom.

Furthermore, the openings of the U-shaped hooks of the first buckling parts arranged in pairs face opposite directions and are arranged back to back.

Furthermore, the U-shaped clamping hook is provided with a pair of bulges which protrude in opposite directions to prevent the second clamping part from being separated.

Furthermore, the bottom surface of the U-shaped clamping hook is upwards sunken to form a groove.

Compared with the prior art, the invention has the following beneficial effects:

the hook of the protective cover is arranged into the U shape, so that the interference between the hook and the skirt pendulum part is increased, the hook and the skirt pendulum part are buckled more stably, and the protective cover is not easy to loosen the fixed seat.

[ description of the drawings ]

FIG. 1 is a perspective view of the electrical connector assembly of the present invention assembled on a circuit board;

FIG. 2 is a partially exploded view of FIG. 1, wherein the protective cover and the screw are both separated from the mounting base;

FIG. 3 is a further partially exploded view of FIG. 2;

FIG. 4 is a perspective view of the cap of FIG. 2 prior to assembly with a screw;

FIG. 5 is a perspective view of FIG. 4 from another angle;

FIG. 6 is a perspective view of the cap of FIG. 4 after assembly with a screw;

FIG. 7 is a front view corresponding to FIG. 6; and

fig. 8 is a schematic view of the screw shown in fig. 6 with a portion cut away.

[ detailed description ] embodiments

Referring to fig. 1 to 3, an electrical connector assembly 100 of the present invention is used for connecting a chip (not shown) to a circuit board 200, and includes an electrical connector 10 and a fixing base 30 framed on a peripheral side of the electrical connector 10. The electrical connector 10 has a housing 11, and a plurality of conductive terminals (not shown) held by the housing 11. The insulating body 11 has a chip accommodating cavity 110, and the conductive terminals protrude into the chip accommodating cavity 110. The electrical connector assembly 100 further includes a protective cover 20 fixed to the fixing base 30 and covering the conductive terminals. The assembly direction of the protective cover 20 and the fixing base 30 is defined as the up-down direction, when the chip is not assembled, the protective cover 20 is buckled to the fixing base 30, and when the chip needs to be assembled, the protective cover 20 is firstly detached from the fixing base 30.

The protective cover 20 includes a main body 21 covering the conductive terminal to protect the conductive terminal, and a first engaging portion 23 and an operating portion 22a disposed on the main body 21. The fixing base 30 includes a metal base 31 framed on the periphery of the insulating body 11 and a second fastening portion 32 protruding upward from the base 31 and having a column shape. Referring to fig. 6, the second fastening portion 32 is recessed inward from an outer surface thereof to form an annular groove 323 and a skirt portion 322 forming an upper wall of the annular groove 323. The skirt portion 322 is provided with a guide slope gradually expanding from top to bottom so as to guide the first locking portion 23 to slide into the annular groove 323. As shown in fig. 4, the first fastening portion 23 has a U-shaped hook 231, the U-shaped hook 231 extends inward from the periphery of the second fastening portion 32 into the annular groove 323 to fasten the second fastening portion 32, and the U-shaped hook 231 and the skirt portion 322 are in interference fit in the vertical direction to fix the protective cover 20 on the fixing base 30. The U-shaped hook 231 can greatly increase the interference between the hook 231 and the skirt portion 322, so that the hook and the skirt portion are more firmly fastened, and the protective cover 20 is not easy to loosen the fixing base 30. Referring to fig. 4 and 5, the first fastening portion 23 includes an elastic arm portion 232 connecting the main body portion 21 and the U-shaped hook 231, and the main body portion 21 can move horizontally relative to the fixing base 30 under the action of an external force so as to drive the U-shaped hook 231 to move through the elastic arm portion 232. The U-shaped hook 231 has an opening, defining that the U-shaped hook 231 has a releasing direction opposite to the opening. As shown in fig. 1 and 8, the thumb is pressed against the operating portion 22a to apply a horizontal pushing force F to the main body 21, the U-shaped hook 231 having the same releasing direction as the pushing force F is gradually withdrawn from the annular groove 323 along the releasing direction, the U-shaped hook 231 having the releasing direction opposite to the pushing force F (having the same opening as the pushing force F) is stopped by the second locking portion 32, and is fixed, and the elastic arm 232 connected to the U-shaped hook 231 is elastically deformed.

The protective cover 20 is defined to have a front-back direction and a transverse direction perpendicular to the front-back and up-down directions. Referring to fig. 4 to 7, the protective cover 20 is made of plastic material and is integrally formed, the main body 21 is substantially rectangular and flat, and has two sets of opposite corners, one set of the opposite corners is provided with a pair of the first locking portions 23, and the other set of the opposite corners is provided with a pair of the positioning portions 24. The protective cover 20 is provided with four side walls 22 extending downwards from the periphery of the main body portion 24, and the two first buckling portions 23 and the two positioning portions 24 are connected end to end by the four side walls 22. The two first fastening portions 23 are located on the front side and the rear side of the main body portion 21, and the two U-shaped hooks 231 are oppositely opened and arranged back to back, that is, the U-shaped hook 231 located on the front side is opened forward, and the U-shaped hook 231 located on the rear side is opened backward. The four side walls 22 include two front and rear opposite side walls 22 and two lateral opposite side walls 22 located between the two side walls 22, wherein the two front and rear opposite side walls 22 are the operation portions 22 a. At least one of the two opposite corners abuts against the base 31 of the fixing base 30 to support the protection cover 20 upward. In the present embodiment (please refer to fig. 7), the bottom of the U-shaped hook 231 of the first fastening portion 23 is substantially flush with the bottom of the positioning portion 24 and is lower than the bottom of the side wall 22, and the first fastening portion 23 and the positioning portion 24 are located at four corners of the base 31 and jointly support the main body portion 21 upward.

The elastic arm part 232 includes a horizontal extension 2321 connected to the main body part 21 and a vertical extension 2322 connected to the U-shaped hook 231, the horizontal extension 2321 is configured as an annular body having a through hole, and the annular body is formed to protrude outward from one side of the main body part 21 in the transverse direction, so that excellent elasticity can be obtained. The first fastening portion 23 is substantially Z-shaped, and the upper and lower ends of the vertical extending portion 2322 horizontally extend inward and outward to form the horizontal extending portion 2321 and the U-shaped hook 231.

The U-shaped hook 231 includes a root connected to the vertical extension 2322, and a fastening region 2312 and a guiding region 2313 formed by extending from the root outwards in sequence. The guiding area 2313 is gradually opened outwards to form a guiding inclined plane for guiding the second fastening part 32 to enter the fastening area 2312, and the opening of the U-shaped hook 231 is formed at the outermost side of the guiding area 2313. The latching area 2312 has a receiving space for receiving the second latching portion 32, and a pair of protrusions 2311 protruding toward the receiving space are formed at the connection position of the latching area 2312 and the guiding area 2313 to prevent the second latching portion 32 from being disengaged. As shown in fig. 5, the bottom surfaces of the fastening area 2312 and the guiding area 2313 are both recessed upward to form a U-shaped groove 2314 communicated with the accommodating space, and the groove 2314 has a U-shaped upper groove wall, and the upper groove wall is inclined in the vertical direction.

Referring to fig. 1 to 3, the chip is pressed and fixed above the insulating body 11 by a heat sink (not shown). The heat sink is assembled and fixed to the fixing base 30. The fixing base 30 includes a set of two screws 32 assembled to a diagonal of the base 31 and two positioning posts 33 with a larger diameter and a smaller diameter assembled to another set of diagonal of the base 31. The heat sink and the positioning portion 24 of the protective cover 20 are provided with two through holes with a larger size and a smaller size corresponding to the positioning posts 33 to obtain the fool-proof effect. As shown in fig. 4 and 5, the through holes of the two positioning portions 24 penetrate the main body from top to bottom, and the diameter of the through holes gradually increases from top to bottom. With such an arrangement, the positioning portion 24 can be obliquely sleeved around the positioning post 33, which is beneficial to the assembly and disassembly of the U-shaped hook 231 on the one hand, and can avoid the situation that the positioning post 33 cannot be inserted into the through hole of the positioning portion 24 due to the inclination. It should be noted that each of the screws 32 constitutes one of the second fastening portions 32.

As further shown in fig. 6, the screw 32 is made of metal and is integrally formed, and the screw 32 is sequentially provided with a thread portion 321 for locking the heat sink, the skirt portion 322 having a diameter larger than that of the thread portion 321, the annular groove 323, an annular protrusion 324, and a holding portion 325 from top to bottom. The holding portion 325 is received in the through hole of the base 31 and laser-welded to the base 31. The annular protrusion 324 abuts against the upper surface of the base 31 and is received in the groove 2314 of the U-shaped hook 231. The upper surface of the annular protrusion 324 extends obliquely upward and downward to match the upper groove wall of the groove 2314.

The fixing base 30 is provided with a pair of elastic metal pieces 34 at the middle position in the front-rear direction for supporting the heat sink. The pair of resilient metal members 34 are located on both lateral sides of the protective cap 20. In this embodiment, a certain gap is reserved between the first fastening part 23 and the second fastening part 32, and between the positioning part 24 and the positioning column 333.

Referring to fig. 1 to 8, when the protective cover 20 is fastened to the fixing base 30, one of the two first fastening portions 23 is assembled first, and then the other first fastening portion 23 is installed. Taking the first locking part 23 installed at the rear side first as an example: aligning the two positioning parts 24 with the two positioning columns 33 at the same time, and tilting the protective cover 20 up and down to extend the opening of the U-shaped hook 231 at the rear side into the annular groove 323; the protective cover 20 is pushed back to make the second fastening portion 32 enter the guiding area 2313, then the pair of protrusions 2311 move to two sides under the extrusion of the second fastening portion 32 to make the second fastening portion 32 enter the fastening area 2312, and finally the protrusions 2311 are tightened inwards to limit the second fastening portion 32 in the accommodating space of the fastening area 2312, at this time, the U-shaped hook 231 on the front side is still located above the skirt pendulum portion 322; further pushing the protection cover 20 backward to make the elastic arm part 232 connected with the rear U-shaped hook 231 elastically deform, so that the main body part 21 further moves backward to drive the front U-shaped hook 231 to move backward to reduce the interference between the U-shaped hook 231 and the skirt part 322 in the vertical direction; when the interference is reduced to a certain extent, the protection cover 20 is pressed against to prevent it from moving forward, and at the same time, the protection cover 20 is pressed downward, and the protection cover 20 is released when the U-shaped hook 231 on the front side falls into the annular groove 323. It should be noted that, since the elastic arm 232 at the rear side elastically deforms to make the U-shaped hook 231 at the front side move away from the second fastening portion 32, and in addition, the U-shaped hook 231 is provided with the groove 2314, and the skirt portion 322 is provided with the guiding inclined plane, the U-shaped hook 231 at the front side can easily slide into the annular groove 323, thereby greatly reducing the risk of plastic abrasion.

When the protective cover 20 is detached from the fixing base 30, a forward or backward pushing force needs to be applied to the main body 21, taking the backward pushing force F as an example: the front operating part 22a is pressed against by the thumb, the U-shaped hook 231 on the rear side is fixed by the stop of the second buckling part 32, and the elastic arm part 232 is elastically deformed to move the main body part 21 backwards; the U-shaped hook 231 located at the front side is driven by the main body 21 to gradually exit from the annular groove 323 backwards; the main body 21 is turned upwards by the thumb to make the U-shaped hook 231 on the front side separate from the interference of the skirt 322 until the U-shaped hook is positioned above the skirt 322, and at the moment, the front side of the protective cover 20 is opened upwards; the protection cover 20 is pulled forward to make the U-shaped hook 231 at the rear exit the annular groove 323, and finally the protection cover 20 is taken out upward.

In this embodiment, the two U-shaped hooks 231 are disposed back to back, and in other embodiments, the openings of the two U-shaped hooks 231 may be disposed face to face (opposite to each other). In this embodiment, the two first fastening portions 23 are disposed at a pair of opposite corners of the protective cover 20, and the symmetrical structure enables the protective cover 20 to be more stably and reliably fixed on the fixing base 30. In this embodiment, the protection cover 20 is provided with two first buckling parts 23, in other embodiments, the protection cover 20 may be provided with only one first buckling part 23, and certainly, three, four, or even more first buckling parts may be provided.

The invention has the beneficial effects that:

1) the hook 231 is U-shaped, which is beneficial to increase the interference between the hook 231 and the skirt portion 322, so that the hook and the skirt portion are more firmly fastened, and the protective cover 20 is not easy to loosen the fixing base 30.

2) The elastic portion 232 provides a buffer to protect the U-shaped hook 231, and on the other hand, the front and rear first fastening portions 23 can be fastened to the second fastening portion 32 more tightly, and the first fastening portion 23 can be separated from the second fastening portion 32 more easily, so that the protective cover 20 is assembled stably and is convenient to disassemble.

3) The protective cover 20 is provided with two first buckling parts 23 at a pair of diagonal corners, so that the protective cover 20 can be fixed more stably and reliably.

The above description is only a part of the embodiments of the present invention, and not all embodiments, and any equivalent variations of the technical solutions of the present invention, which are made by those skilled in the art through reading the present specification, are covered by the claims of the present invention.

Claims

1. A protective cover for mounting to a chip connector, comprising: the protective cover comprises a main body part and a first buckling part arranged on the main body part, the first buckling part is provided with a U-shaped hook used for being buckled around a buckled object in a surrounding mode and an elastic arm part used for connecting the hook with the main body part, the first buckling part is arranged on opposite corners of the main body part in pairs, the protective cover is provided with a pair of positioning parts on the other opposite corners of the main body part, one of the pair of positioning parts is provided with a large through hole, the other one of the pair of positioning parts is provided with a small through hole, and the through holes are gradually expanded from top to bottom.

2. The protective cover of claim 1, wherein: the U-shaped hooks of the first fastening parts have opposite opening directions.

3. The protective cover of claim 1, wherein: the buckled object is provided with a clamping groove which is inwards sunken from the outer surface, and the clamping hook can be elastically deformed through the elastic arm part to be clamped into the clamping groove.

4. The protective cover of claim 1, wherein: the U-shaped clamping hook is provided with a pair of bulges which protrude in opposite directions to prevent the clamped object from being separated.

5. An electric connector assembly comprises an electric connector, a fixed seat arranged around the electric connector in a framing manner and a protective cover fixed on the fixed seat, wherein the electric connector comprises an insulating body and a plurality of conductive terminals fixedly held on the insulating body, the insulating body is provided with a chip accommodating cavity, and the conductive terminals protrude into the chip accommodating cavity, and the electric connector assembly is characterized in that: the protective cover comprises a main body part and a first buckling part, the main body part is covered above the conductive terminal, the first buckling part is arranged on the main body part, and the fixed seat is provided with a second buckling part which is mutually buckled and matched with the first buckling part; the first buckling part is provided with a U-shaped clamping hook and an elastic arm part for connecting the clamping hook with the main body part, the second buckling part is provided with an annular groove for accommodating the U-shaped clamping hook, the first buckling parts are arranged in pairs and formed by extending the opposite angles of the main body part outwards integrally, the protection cover is arranged at the other opposite angle of the main body part and provided with a pair of positioning parts, one of the pair of positioning parts is provided with a large through hole, the other one of the pair of positioning parts is provided with a small through hole, and the through holes are gradually expanded from top to bottom.

6. The electrical connector assembly of claim 5, wherein: when the protective cover is arranged on the fixed seat, the protective cover inclines a certain angle relative to the fixed seat so that the U-shaped clamping hook of one first clamping part is firstly clamped into the corresponding annular groove; when the protective cover is detached, a horizontal pushing force is applied to the protective cover to drive one of the first buckling parts to extrude towards the corresponding second buckling part, so that the elastic arm part is elastically deformed, and the U-shaped hook of the other first buckling part is far away from and separated from the corresponding second buckling part.

7. The electrical connector assembly of claim 6, wherein: the openings of the U-shaped hooks of the first buckling parts arranged in pairs face opposite directions and are arranged back to back.

8. The electrical connector assembly of claim 5, wherein: the U-shaped clamping hook is provided with a pair of bulges which protrude in opposite directions to prevent the second clamping part from being separated.

9. The electrical connector assembly of claim 5, wherein: the bottom surface of the U-shaped clamping hook is sunken upwards to form a groove.