CN209860205U

CN209860205U - Electrical connector

Info

Publication number: CN209860205U
Application number: CN201822273374.7U
Authority: CN
Inventors: 郑鹏飞; 朱跃龙; 朱昭晖
Original assignee: Qidong Qianshuo Electronic Co Ltd
Current assignee: Qidong Qianshuo Electronic Co Ltd
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2019-12-27
Anticipated expiration: 2028-12-29

Abstract

The utility model discloses an electric connector, include along longitudinal extension's insulator, the terminal of fixing on insulator and be located the protective cradle at the vertical both ends of insulator, insulator is equipped with along longitudinal extension's both sides wall and the both ends wall of connecting the both sides wall. The protective support is fixed on the end wall and is provided with an end wall shielding piece covering the end wall and at least a part of a side wall shielding piece covering the side wall, the side wall shielding piece is connected to the two transverse ends of the end wall shielding piece, the end wall shielding piece comprises an end wall shielding part covering the top surface of the end wall and an inner wall shielding part bending from the side edge of the end wall shielding part and covering the inner wall surface of the end wall, and the inner wall shielding part is provided with elastic arms extending from the two transverse ends of the inner wall shielding part along the inner wall surface of the side wall. The elastic arm of the protection support has a longer force arm, so that the problem that the elastic arm is greatly lowered after the electric connector is plugged and pulled is solved while the stable assembly of the electric connector is ensured, and the electric connector is stable and reliable in contact when in use.

Description

Electrical connector

Technical Field

The present invention relates to an electrical connector, and more particularly to an electrical connector with a metal protection bracket.

Background

A Board to Board Connector (BTB) is a Connector often used in electronic devices (e.g., mobile phones, tablet computers, etc.), and is used to mechanically and electrically interconnect a main Board of the electronic device and modules (e.g., a display module, a touch module, a camera module, etc.). The board-to-board connector generally comprises a plug and a socket, both the plug and the socket are composed of a plastic body and conductive terminals fixed on the plastic body, the plastic body mainly plays a role in insulating and positioning the conductive terminals, and the conductive terminals mainly play a role in conduction. Generally, the plug and the socket of the existing board-to-board connector can also add a protective bracket to improve the strength of the connector; and the protective bracket of the socket is provided with an elastic sheet for overlarge current. However, the height of the insulating body of the socket is limited, so that the force arm of the elastic sheet is short, namely, the lowering amount of the elastic sheet is too large, the force attenuation of the elastic sheet is obvious after the socket is plugged and pulled out, and the contact stability of the board to the board connector is poor. Meanwhile, the protection supports at the two ends of the existing socket cannot effectively protect the front side and the inner side surface of the insulating body, so that the insulating body of the socket is damaged after the board-to-board connector is assembled, and abnormal conditions such as improper assembly are easy to occur.

It is therefore desirable to provide a new electrical connector that overcomes the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric connector with protective cradle, this protective cradle have guaranteed the stability of electric connector contact when too big electric current.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an electric connector comprises an insulating body extending along the longitudinal direction, terminals fixed on the insulating body and protective supports positioned at two longitudinal ends of the insulating body, wherein the insulating body is provided with two side walls extending along the longitudinal direction and two end walls connecting the two side walls. The protective support is fixed on the end wall and is provided with an end wall shielding piece covering the end wall and at least a part of a side wall shielding piece covering the side wall, the side wall shielding piece is connected to the two transverse ends of the end wall shielding piece, the end wall shielding piece comprises an end wall shielding part covering the top surface of the end wall and an inner wall shielding part bending from the side edge of the end wall shielding part and covering the inner wall surface of the end wall, and the inner wall shielding part is provided with elastic arms extending from the two transverse ends of the inner wall shielding part along the inner wall surface of the side wall.

In a preferred embodiment, the two end walls and the two side walls of the insulating body are surrounded to form slots, and the elastic arm is provided with a protruding part protruding into the slots.

In a preferred embodiment, the spring arm extends in the longitudinal direction in the region of the side wall, and a gap is formed between the spring arm and the inner wall surface of the side wall.

In a preferred embodiment, the side wall of the insulating body is provided with a relief groove corresponding to the elastic arm, and the relief groove is formed by recessing from the inner wall surface of the side wall.

In a preferred embodiment, the side wall shielding sheet is provided with side wall shielding parts extending from two ends of the end wall shielding part along the longitudinal direction, and the side wall shielding parts at least partially cover the top surfaces of the side walls and at least partially cover the upper parts of the elastic arms.

In a preferred embodiment, the sidewall shielding sheet is provided with a welding leg bent and extended downward from an outer side edge of the sidewall shielding portion, and the welding leg is fastened to an outer wall surface of the sidewall.

In a preferred embodiment, the insulating body is provided with a lock catch groove located on the outer wall surface of the side wall, and the welding foot is contained in the lock catch groove and provided with an agnail clamped on the wall surface of the lock catch groove.

In a preferred embodiment, the outer surface of the welding foot does not exceed the outer wall surface of the side wall, and the welding foot extends downwards to exceed the bottom surface of the insulating body.

In a preferred embodiment, the end wall shielding sheet further includes an outer wall shielding portion folded from the other side edge of the end wall shielding portion and covering the outer wall surface of the end wall.

In a preferred embodiment, the outer surface of the outer wall shielding part does not exceed the outer wall surface of the end wall, and the outer wall shielding part extends downwards to exceed the bottom surface of the insulating body.

Compared with the prior art, the utility model discloses following beneficial effect has: the protective support is fixed on the end wall and is provided with an end wall shielding piece covering the end wall and at least a part of a side wall shielding piece covering the side wall, the side wall shielding piece is connected to the two transverse ends of the end wall shielding piece, the end wall shielding piece comprises an end wall shielding part covering the top surface of the end wall and an inner wall shielding part bending from the side edge of the end wall shielding part and covering the inner wall surface of the end wall, and the inner wall shielding part is provided with elastic arms extending from the two transverse ends of the inner wall shielding part along the inner wall surface of the side wall. The elastic arm of the protection support has a longer force arm, so that the problem that the elastic arm is greatly lowered after the electric connector is plugged and pulled is solved while the stable assembly of the electric connector is ensured, and the electric connector is stable and reliable in contact when in use.

Drawings

Fig. 1 is a perspective view of an electrical connector according to a preferred embodiment of the present invention.

Fig. 2 is an exploded view of the electrical connector shown in fig. 1.

Fig. 3 is a side view of the electrical connector shown in fig. 1.

Fig. 4 is a perspective view of a protective bracket in the electrical connector shown in fig. 2.

Fig. 5 is a bottom view of the protective bracket shown in fig. 4.

Fig. 6 is a perspective view of an electrical connector according to another embodiment of the present invention.

Fig. 7 is an exploded view of the electrical connector shown in fig. 6.

Fig. 8 is a perspective view of a protective bracket in the electrical connector shown in fig. 7.

Detailed Description

Referring to fig. 1 to 5, a preferred embodiment of the present invention discloses an electrical connector 100, wherein the electrical connector 100 includes an insulative housing 10 extending along a longitudinal direction, a terminal 20 fixed on the insulative housing 10, and a protection bracket 30 located at two longitudinal ends of the insulative housing 10. The insulating body 10 is provided with a central island portion 11 extending in a longitudinal direction, two side walls 12 located on both lateral sides of the island portion 11, and two end walls 13 connected to the two side walls 12. The island 11, the two side walls 12 and the two end walls 13 together define a slot 14, and the slot 14 is used for inserting a butting connector (not shown).

The protection bracket 30 is assembled and fixed on the end wall 13 of the insulation body 10 to improve the overall strength of the electrical connector 100. As shown in fig. 4 and 5, the protective bracket 30 is provided with an end wall shielding plate 31 covering the end wall 13 and a side wall shielding plate 32 at least partially covering the side wall 12, and the side wall shielding plates 32 are connected to two lateral ends of the end wall shielding plate 31. The end wall shielding sheet 31 is provided with an end wall shielding portion 311 covering the top surface of the end wall 13 and an inner wall shielding portion 312 bent from the inner side edge of the end wall shielding portion 311 and covering the inner wall surface of the end wall 13, and the inner wall shielding portion 312 is provided with elastic arms 313 extending from both lateral ends thereof along the inner wall surface of the side wall 12. The elastic arm 313 is provided with a protrusion 314 protruding into the slot 14 to ensure the passage of large current when the electrical connector 100 is plugged.

The spring arm 313 extends in the longitudinal direction in the region of the side wall 12, and a gap is formed between the spring arm 313 and the inner wall surface of the side wall 12. The side wall 12 of the insulating body 10 is provided with a relief groove 15 corresponding to the elastic arm 313, and the relief groove 15 is formed by recessing from the inner wall surface of the side wall 12, so as to provide a sufficient movement space when the elastic arm 313 is elastically deformed.

The utility model discloses in, when electric connector 100 and butting connector cooperate, elastic arm 313 realizes stable elastic contact with butting connector's protective cradle cooperation to realize the heavy current and switch on the function. The elastic arm 313 of the protection bracket 30 has a longer arm of force, so that the problem that the elastic arm 313 falls down to a larger extent after the electrical connector 100 is plugged and unplugged is solved while the electrical connector 100 is stably assembled, and the electrical connector 100 is stably and reliably contacted in use.

The side wall shielding sheet 32 of the protection bracket 30 is provided with side wall shielding parts 321 extending from two ends of the end wall shielding part 311 along the longitudinal direction, and the side wall shielding parts 321 at least partially cover the top surface of the side wall 12. The sidewall shielding portion 321 covers at least a portion of the elastic arm 313, so as to protect the elastic arm 313 and limit the elastic arm 313. The sidewall shielding plate 32 further has a soldering leg 322 bent downward from the outer side of the sidewall shielding portion 321, and the soldering leg 322 is fixedly mounted on a circuit board (not shown) electrically connected to the electrical connector 100.

The welding leg 322 is fastened to the outer wall surface of the sidewall 12 to fix the protection bracket 30 to the insulation body 10. The insulating housing 10 is provided with a locking groove 16 located on the outer wall surface of the sidewall 12, and the welding leg 322 is accommodated in the locking groove 16 and provided with an agnail 323 locked on the wall surface of the locking groove 16, so as to enhance the stability of the protection bracket 30 fixed on the insulating housing 10.

The protection bracket 30 further includes an outer wall shielding portion 315 bent from the other side of the end wall shielding portion 311 and covering the outer wall surface of the end wall 13, the outer surface of the outer wall shielding portion 315 does not exceed the outer wall surface of the end wall 13, and the outer wall shielding portion 315 extends downward to exceed the bottom surface of the insulation body 10. Meanwhile, the outer surface of the welding leg 322 does not exceed the outer wall surface of the sidewall 12, and the welding leg 322 extends downward to exceed the bottom surface of the insulating body 10, so that the volume of the whole electrical connector 100 is not increased while the strength of the insulating body 10 is increased and the conduction of a large current is realized by the protection bracket 30.

Referring to fig. 6 to 8, another embodiment of the present invention discloses an electrical connector 200, wherein the structure of the electrical connector 200 is substantially the same as that of the electrical connector 100, except that the structure of the protection bracket is different. The electrical connector 200 also includes a housing 10 extending along a longitudinal direction, terminals 20 fixed on the housing 10, and protection brackets 40 at two longitudinal ends of the housing 10. The insulating body 10 is also provided with a central island portion 11 extending in the longitudinal direction, two side walls 12 located on both lateral sides of the island portion 11, and two end walls 13 connected to the two side walls 12. The island 11, the two side walls 12 and the two end walls 13 together define a slot 14, and the slot 14 is used for inserting a butting connector.

The protection bracket 40 is assembled and fixed on the end wall 13 of the insulation body 10 to improve the overall strength of the electrical connector 200. As shown in fig. 8, the protective bracket 40 is provided with an end wall shielding piece 41 covering the end wall 13 and a side wall shielding piece 42 at least partially covering the side wall 12, and the side wall shielding piece 42 is connected to both lateral ends of the end wall shielding piece 41. The end wall shielding sheet 41 has an end wall shielding portion 411 covering the top surface of the end wall 13 and a connecting arm 412 extending obliquely from the inner side edge of the end wall shielding portion 411 toward the bottom surface of the slot 14, and the connecting arm 412 has elastic arms 413 extending from both lateral sides of the end thereof toward the inner wall surface of the side wall 12.

The resilient arms 413 are inclined upward and protrude into the slot 14 to ensure the passage of large current when the electrical connector 200 is plugged. And a gap is formed between the elastic arm 413 and the inner wall surface of the side wall 12. The side wall 12 of the insulating body 10 is provided with a relief groove 15 corresponding to the elastic arm 413, and the relief groove 15 is formed by recessing the inner wall surface of the side wall 12, so that the elastic arm 413 has enough movement space when being elastically deformed.

The side wall shielding sheet 42 of the protection bracket 40 is provided with side wall shielding parts 421 extending from two ends of the end wall shielding part 411 along the longitudinal direction, and the side wall shielding parts 421 at least partially cover the top surfaces of the side walls 12. The sidewall shielding portion 421 covers at least a portion of the elastic arm 413, so as to protect the elastic arm 413 and limit the elastic arm 413. The sidewall shielding plate 42 further has a soldering foot 422 bent and extended downward from the outer side edge of the sidewall shielding portion 421, and the soldering foot 422 can be fixedly mounted on a circuit board (not shown) electrically connected to the electrical connector 200.

The welding leg 422 is fastened to the outer wall surface of the sidewall 12 to fix the protection bracket 40 to the insulation body 10. The housing 10 has a locking groove 16 located on the outer wall of the sidewall 12, and the welding leg 422 is received in the locking groove 16 to enhance the stability of the protection bracket 40 fixed to the housing 10. The outer surface of the soldering foot 422 does not exceed the outer wall surface of the sidewall 12, so that the volume of the whole electrical connector 200 is not increased while the strength of the insulating body 10 is increased and the conduction of the large current is realized by the protection bracket 30.

In summary, the above is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the content of the specification should still belong to the scope covered by the present invention.

Claims

1. An electric connector comprises an insulating body extending along the longitudinal direction, terminals fixed on the insulating body and protective supports positioned at two longitudinal ends of the insulating body, wherein the insulating body is provided with two side walls extending along the longitudinal direction and two end walls connecting the two side walls; the method is characterized in that: the protective support is fixed on the end wall and is provided with an end wall shielding piece covering the end wall and at least a part of a side wall shielding piece covering the side wall, the side wall shielding piece is connected to the two transverse ends of the end wall shielding piece, the end wall shielding piece comprises an end wall shielding part covering the top surface of the end wall and an inner wall shielding part bending from the side edge of the end wall shielding part and covering the inner wall surface of the end wall, and the inner wall shielding part is provided with elastic arms extending from the two transverse ends of the inner wall shielding part along the inner wall surface of the side wall.

2. The electrical connector of claim 1, wherein: the two end walls and the two side walls of the insulating body are surrounded to form slots, and the elastic arms are provided with protruding parts protruding into the slots.

3. The electrical connector of claim 1, wherein: the resilient arms extend longitudinally within the sidewall region and a gap is formed between the resilient arms and the inner wall surface of the sidewall.

4. The electrical connector of claim 3, wherein: the side wall of the insulating body is provided with a yielding groove corresponding to the elastic arm, and the yielding groove is formed by sinking from the inner wall surface of the side wall.

5. The electrical connector of claim 1, wherein: the side wall shielding piece is provided with side wall shielding parts extending from two ends of the end wall shielding part along the longitudinal direction, and at least part of the side wall shielding parts are covered on the top surface of the side wall and at least part of the side wall shielding parts are covered above the elastic arm.

6. The electrical connector of claim 5, wherein: the side wall shielding piece is provided with a welding pin which is bent downwards and extends from the outer side edge of the side wall shielding part, and the welding pin is buckled on the outer wall surface of the side wall.

7. The electrical connector of claim 6, wherein: the insulating body is provided with a lock catch groove located on the outer wall surface of the side wall, and the welding feet are contained in the lock catch groove and provided with barbs clamped on the wall surface of the lock catch groove.

8. The electrical connector of claim 6, wherein: the outer surface of the welding foot does not exceed the outer wall surface of the side wall, and the welding foot extends downwards to exceed the bottom surface of the insulating body.

9. The electrical connector of claim 1, wherein: the end wall shielding piece further comprises an outer wall shielding part which is bent from the other side edge of the end wall shielding part and covers the outer wall surface of the end wall.

10. The electrical connector of claim 9, wherein: the outer surface of the outer wall shielding part does not exceed the outer wall surface of the end wall, and the outer wall shielding part extends downwards to exceed the bottom surface of the insulating body.