CN212230677U

CN212230677U - Electrical connector

Info

Publication number: CN212230677U
Application number: CN202021175475.1U
Authority: CN
Inventors: 尹海港; 朱跃龙; 朱昭晖
Original assignee: Qidong Qianshuo Electronic Co Ltd
Current assignee: Qidong Qianshuo Electronic Co Ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2020-12-25
Anticipated expiration: 2030-06-22

Abstract

The invention discloses an electric connector, which 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 connected with the two side walls. The protective support is fixed on the end wall and is provided with an end wall shielding part covering the top surface of the end wall and at least a part of a side wall shielding part covering the top surface of the side wall, and the side wall shielding part extends longitudinally from two transverse ends of the end wall shielding part. The side wall shielding parts are connected to the two transverse ends of the end wall shielding parts to form top surface shielding parts, each top surface shielding part comprises a horizontal part arranged in parallel with the top surface of the insulating body and an inclined part extending downwards from the inner side edge of the horizontal part, and the inclined parts are formed by drawing from the inner side edge of the horizontal part. The slope draws intensity grow and the direction effect also has obvious promotion after the shaping, promptly the protection support has good guidance quality in compromise when guaranteeing bulk strength.

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 two parts, namely a plug connector and a socket connector, wherein the plug connector and the socket connector are both 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. Under the usual situation, because the front and the medial surface plastic of the plastic body are failed to be protected at the both ends of socket connector to lead to the board to receive the damage to the plastic body of socket connector after the board is to the board connector equipment, the unusual circumstances such as the assembly is not in place appear easily, consequently the board of current board to the board connector in can increase the protective cradle with promotion self intensity, thereby the damage of the plastic body when avoiding pegging graft. Meanwhile, the protective bracket of the socket connector usually has a top surface shielding portion for shielding the top surface of the plastic body and an inner wall shielding portion bent downward from the inner side edge of the top surface shielding portion, and the bending area between the top surface shielding portion and the inner wall shielding portion can realize the guiding effect of the socket connector on the plug connector during plugging. However, the overall strength of the bent region after bending is poor and is easily deformed; meanwhile, when the plug connector is pulled out of the socket connector, the bending area is also easily driven by the plug connector to deform.

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

Disclosure of Invention

The invention aims to provide an electric connector with a protective bracket, which ensures the integral strength of the electric connector and has good guiding property.

In order to achieve the purpose, the invention 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 the 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 part covering the top surface of the end wall and a side wall shielding part at least partially covering the top surface of the side wall, and the side wall shielding part extends longitudinally from two transverse ends of the end wall shielding part. The side wall shielding parts are connected to the two transverse ends of the end wall shielding parts to form top surface shielding parts, each top surface shielding part comprises a horizontal part arranged in parallel with the top surface of the insulating body and an inclined part extending from the inner side edge of the horizontal part in a downward inclined mode, and the inclined parts are formed by drawing from the inner side edge of the horizontal part.

In a preferred embodiment, the end wall shielding part includes an end wall horizontal part and an end wall inclined part extending obliquely downward from an inner side edge of the end wall horizontal part, and the side wall shielding part includes a side wall horizontal part and a side wall inclined part extending obliquely downward from an inner side edge of the side wall horizontal part, the side wall horizontal part being connected to both lateral ends of the end wall horizontal part to form the horizontal part, and the side wall inclined part being connected to both lateral ends of the end wall inclined part to form the inclined part.

In a preferred embodiment, the protective bracket is provided with an outer wall shielding portion bent downward from an outer side edge of the end wall shielding portion, and elastic arms extending from both lateral ends of the outer wall shielding portion along an inner wall surface of the side wall, and the outer wall shielding portion covers the outer wall surface of the end wall.

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

In a preferred embodiment, the end wall is provided with a slot longitudinally extending through the end wall and communicating with the slot, and the resilient arm extends from the outer wall surface of the end wall through the slot and into the slot.

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 an inner wall surface of the side wall.

In a preferred embodiment, the sidewall shielding portion is located above the avoiding groove and the elastic arm, and the sidewall inclined portion at least partially covers above the elastic arm.

In a preferred embodiment, the protection bracket is assembled on the end wall of the insulation body from top to bottom and is provided with a welding leg bent and extended downwards from the outer side edge of the side wall shielding part, and the welding leg is fastened on the outer wall surface of the side wall.

In the preferred embodiment, insulator is equipped with and is located the hasp groove of lateral wall outer wall face, the welding foot accept in the hasp inslot and be equipped with the block in the barb of hasp groove wall face.

Compared with the prior art, the invention has the following beneficial effects: the side wall shielding parts are connected to the two transverse ends of the end wall shielding parts to form top surface shielding parts, each top surface shielding part comprises a horizontal part arranged in parallel with the top surface of the insulating body and an inclined part extending downwards from the inner side edge of the horizontal part, and the inclined parts are formed by drawing from the inner side edge of the horizontal part; the slope draws intensity grow and the direction effect also has obvious promotion after the shaping, promptly the protection support has good guidance quality in compromise when guaranteeing bulk strength. Meanwhile, the protective bracket is provided with an outer wall shielding part bent downwards from the outer side edge of the end wall shielding part and elastic arms extending from the two transverse ends of the outer wall shielding part along the inner wall surface of the side wall, the elastic arms are provided with longer force arms, the problem that the elastic arms are greatly degraded 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 first embodiment of the present invention.

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

Fig. 3 is a top 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 perspective view of the protective bracket of fig. 4 from another angle.

Fig. 6 is a top view of the protective bracket shown in fig. 4.

Fig. 7 is a bottom view of the protective bracket shown in fig. 4.

Fig. 8 is a perspective view of a second embodiment of the protective bracket of the present invention.

Fig. 9 is a schematic perspective view of the protective bracket of fig. 8 from another angle.

Detailed Description

Referring to fig. 1 to 3, a second 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 retained 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 from top to bottom, so as to improve the overall strength of the electrical connector 100. As shown in fig. 4 and 7, the protective bracket 30 is provided with an end wall reinforcing plate 31 covering the end wall 13 and a side wall reinforcing plate 32 at least partially covering the side wall 12, and the side wall reinforcing plate 32 is connected to both lateral ends of the end wall reinforcing plate 31. The end wall reinforcing sheet 31 is provided with an end wall shielding portion 311 covering the top surface of the end wall 13 and an outer wall shielding portion 312 bent from the outer side edge of the end wall shielding portion 311 and covering the outer wall surface of the end wall 13, and the outer 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 and a welding portion 315 extending outward from the bottom surface thereof. 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 soldering portion 315 is used to be soldered and fixed on a circuit board (not shown), so as to increase the current conducting capability of the electrical connector 100.

As shown in fig. 2, the end wall 13 is provided with a slot 17 longitudinally penetrating the end wall 13 and communicating with the slot 14, and the elastic arm 313 passes through the slot 17 from the outer side surface of the end wall 13 and extends into the slot 14. 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 elastic arm of the protection bracket in the existing design has a shorter force arm, namely the falling-service quantity of the elastic arm is too large, and the force attenuation of the elastic arm is obvious after the electric connector is plugged, so that the contact stability of the electric connector is poor. In the invention, when the electrical connector 100 is matched with a butting connector, the elastic arm 313 is matched with a protection bracket of the butting connector to realize stable elastic contact, so that a high-current conduction function is realized. 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 be greatly damaged after the electric connector 100 is plugged and unplugged is solved while the stable assembly of the electric connector 100 is ensured, and the electric connector 100 is stable and reliable in contact and has the capability of conducting large current when in use.

The side wall reinforcing 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 is located above the receding groove 15 and the elastic arm 313, so that the elastic arm 313 can be protected, and the elastic arm 313 can be limited. The sidewall reinforcement 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 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.

In this embodiment, the side wall shielding portions 321 are connected to both lateral ends of the end wall shielding portion 311 to form a top surface shielding portion 301, the top surface shielding portion 301 includes a horizontal portion 302 arranged parallel to the top surface of the insulating body 10 and an inclined portion 303 extending downward from an inner side edge of the horizontal portion 302, and the inclined portion 303 is formed by drawing from the inner side edge of the horizontal portion 302. Specifically, the end wall shielding portion 311 includes an end wall horizontal portion 316 and an end wall inclined portion 317 extending downward from an inner side edge of the end wall horizontal portion 316, the side wall shielding portion 321 includes a side wall horizontal portion 326 and a side wall inclined portion 327 extending downward from an inner side edge of the side wall horizontal portion 326, the side wall horizontal portion 326 is connected to both lateral ends of the end wall horizontal portion 316 to form the horizontal portion 302, and the side wall inclined portion 327 is connected to both lateral ends of the end wall inclined portion 317 to form the inclined portion 303.

The inclined portion 303 is used for guiding the insertion of the mating connector when the electrical connector 100 is plugged with the mating connector. After the inclined portion 303 is formed by drawing, the material of the inclined portion 303 is hardened by cold work hardening, so that the strength of the inclined portion 303 is increased and the guiding effect is obviously improved, that is, the protective bracket 30 has good guiding performance while ensuring the overall strength. The inclined portion 303 is provided to ensure that the overall volume of the electrical connector 100 is not increased, and the protective bracket 30 may be made of a thicker material, so that the forward force and the current conduction force thereof are improved. Meanwhile, the sidewall inclined portion 327 covers at least a portion of the elastic arm 313, so as to protect and limit the elastic arm 313.

In the present embodiment, the outer surface of the outer wall shielding portion 315 of the end wall reinforcing plate 31 does not exceed the outer wall surface of the end wall 13, and the outer surface of the welding leg 322 of the side wall reinforcing plate 32 does not exceed the outer wall surface of the side wall 12, so that the protection bracket 30 does not increase the volume of the whole electrical connector 100 while increasing the strength of the insulating body 10 and realizing conduction of a large current, thereby realizing a demand for miniaturization of the electrical connector.

Referring to fig. 8 to 9, the second embodiment is different from the first embodiment in that the end wall reinforcing sheet 31 of the protective bracket 30 is provided with an inner wall shielding portion 318 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 318 and the outer wall shielding portion 312 are respectively connected to the two longitudinal ends of the end wall shielding portion 311. The inner wall shielding portion 318 is provided with a convex hull 319 protruding into the slot 14 from the surface thereof, and when the electrical connector 100 is mated with a mating connector, the inner wall shielding portion 318 of the protection bracket 30 abuts against the mating protection bracket of the mating connector through the convex hull 319. Meanwhile, since the outer wall shielding part 312 has the welding part 315 extending outward from the bottom surface thereof, and the inner wall shielding part 318 has the convex hull 319 protruding into the slot 14, when the docking connector is plugged into the slot 14 of the electrical connector 100, the docking protection bracket of the docking connector is docked with the protection bracket 30 of the electrical connector 100; at this time, a new current conducting path is formed among the docking protection bracket, the convex hull 31, the inner wall shielding part 318, the end wall shielding part 311, the outer wall shielding part 312, the soldering part 315 and the circuit board, so that a large current is ensured to pass through when the electrical connector 100 is plugged, that is, the current conducting capability of the electrical connector 100 is increased.

In the present invention, the side wall shielding portions 321 of the protection bracket 30 are connected to both lateral ends of the end wall shielding portion 311 to form a top surface shielding portion 301, the top surface shielding portion 301 includes a horizontal portion 302 arranged in parallel with the top surface of the insulation body 10 and an inclined portion 303 extending downward from an inner side edge of the horizontal portion 302, and the inclined portion 303 is formed by drawing from the inner side edge of the horizontal portion 302; the slope 303 draws the shaping back intensity grow and the direction effect also has obvious promotion, promptly the protective bracket 30 is compromise when guaranteeing bulk strength has good guidance quality. Meanwhile, the protective bracket 30 is provided with an outer wall shielding part 312 bent downwards from the outer side edge of the end wall shielding part 311 and elastic arms 313 extending from the two transverse ends of the outer wall shielding part 312 along the inner wall surface of the side wall 12, and the elastic arms 313 have longer force arms, so that the problem that the elastic arms fall down to be greatly worn after the electric connector 100 is plugged and unplugged is solved while the electric connector 100 is ensured to be stably assembled, and the electric connector 100 is stably and reliably contacted in use.

In summary, the above is only a preferred embodiment of the present invention, and should not be limited to the scope of the present invention, and all the equivalent changes and modifications made by the claims and the specification of the present invention should still fall within the scope of 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 the 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 side wall shielding parts are connected to the two transverse ends of the end wall shielding parts to form top surface shielding parts, each top surface shielding part comprises a horizontal part arranged in parallel with the top surface of the insulating body and an inclined part extending from the inner side edge of the horizontal part in a downward inclined mode, and the inclined parts are formed by drawing from the inner side edge of the horizontal part.

2. The electrical connector of claim 1, wherein: the end wall shielding part includes an end wall horizontal part and an end wall inclined part extending obliquely downward from an inner side edge of the end wall horizontal part, the side wall shielding part includes a side wall horizontal part and a side wall inclined part extending obliquely downward from the inner side edge of the side wall horizontal part, the side wall horizontal part is connected to both lateral ends of the end wall horizontal part to form the horizontal part, and the side wall inclined part is connected to both lateral ends of the end wall inclined part to form the inclined part.

3. The electrical connector of claim 2, wherein: the protective bracket is provided with an outer wall shielding part bent downwards from the outer side edge of the end wall shielding part and elastic arms extending from the two transverse ends of the outer wall shielding part along the inner wall surface of the side wall, and the outer wall shielding part covers the outer wall surface of the end wall.

4. The electrical connector of claim 3, wherein: two end walls and two side walls of the insulating body are encircled to form slots, and the elastic arm is provided with a protruding part which protrudes into the slots.

5. The electrical connector of claim 4, wherein: the end wall is provided with a slot which penetrates through the end wall along the longitudinal direction and is communicated with the inserting groove, and the elastic arm penetrates through the slot from the outer wall surface of the end wall and extends into the inserting groove.

6. The electrical connector of claim 5, wherein: the resilient arm extends longitudinally within the sidewall region and a gap is formed between the resilient arm and an inner wall surface of the sidewall.

7. The electrical connector of claim 5, 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 the inner wall surface of the side wall.

8. The electrical connector of claim 7, wherein: the side wall shielding part is positioned above the abdicating groove and the elastic arm, and the side wall inclined part at least partially covers the elastic arm.

9. The electrical connector of claim 1, wherein: the protective bracket is assembled on the end wall of the insulating body from top to bottom and provided with welding pins which are bent downwards and extend from the outer side edge of the side wall shielding part, and the welding pins are buckled on the outer wall surface of the side wall.

10. The electrical connector of claim 9, wherein: the insulating body is provided with a lock catch groove which is positioned 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 which is clamped on the wall surface of the lock catch groove.