CN211530239U

CN211530239U - Electrical connector

Info

Publication number: CN211530239U
Application number: CN202020368662.5U
Authority: CN
Inventors: 成波; 陈高
Original assignee: Kunshan Huile Precision Industry Co ltd
Current assignee: Kunshan Huile Precision Industry Co ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-09-18
Anticipated expiration: 2030-03-20

Abstract

The utility model discloses an electric connector, including the insulator of longitudinal extension, fix conductive terminal on insulator and be located the metal reinforcement at the vertical both ends of insulator. The insulating body is provided with two side walls extending along the longitudinal direction and two end walls connecting the two side walls, and the metal reinforcing piece is fixed on the end walls and is provided with a side wall reinforcing sheet at least partially covering the side walls. The lateral wall reinforcing sheet is provided with a lateral wall top plate part covering the top surface of the lateral wall, a lateral wall lateral plate part bending downwards and extending from the outer side edge of the lateral wall top plate part, and an elastic arm bending inwards and extending upwards from the bottom edge of the lateral wall lateral plate part, the elastic ratio length of the elastic arm is enhanced by the arrangement of the elastic arm, and therefore the contact stability during plugging is guaranteed. The side wall top plate part, the side wall side plate part and the elastic arm are arranged in a surrounding mode to form an accommodating groove, the elastic arm forms a cantilever structure in the accommodating groove to have elasticity, hard interference when the electric connector is plugged is avoided, and abrasion when the metal reinforcing part is plugged is reduced.

Description

Electrical connector

Technical Field

The utility model relates to an electric connector especially relates to an electric connector that can stabilize plug.

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 conducting. Generally, a plug connector and a socket connector of a board-to-board connector are additionally provided with metal reinforcements to improve the strength of the connectors; the metal reinforcing piece of the socket connector is provided with an elastic sheet for overlarge current, and meanwhile, the socket connector forms an abdicating space on the side wall of the insulating body of the socket connector so as to accommodate the elastic sheet of the metal reinforcing piece. However, the height of the insulating body of the socket connector is limited, so that the force arm of the spring plate is short, that is, the lowering amount of the spring plate is too large, and the force attenuation of the spring plate of the socket connector after plugging is obvious, so that the contact stability of the board to the board connector is poor.

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 metal reinforcement, this metal reinforcement has guaranteed the stability of electric connector contact when pegging graft.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an electrical connector comprises an insulating body extending along the longitudinal direction, conductive terminals fixed on the insulating body and metal reinforcing pieces positioned at two longitudinal ends of the insulating body. The insulating body is provided with two side walls extending along the longitudinal direction and two end walls connecting the two side walls, the metal reinforcing piece is fixed on the end wall and is provided with an end wall reinforcing sheet covering the end wall and a side wall reinforcing sheet at least partially covering the side wall, and the side wall reinforcing sheet is connected to the two transverse ends of the end wall reinforcing sheet. The side wall reinforcing sheet is provided with a side wall top plate portion covering the top surface of the side wall, a side wall side plate portion bending and extending downwards from the outer side edge of the side wall top plate portion, and an elastic arm bending inwards from the bottom edge of the side wall side plate portion and extending upwards, the side wall top plate portion, the side wall side plate portion and the elastic arm are surrounded to form an accommodating groove, the side wall side plate portion is provided with a stopping portion extending into the accommodating groove, the elastic arm is provided with a contact arm extending upwards from the side wall side plate portion and an extending portion extending into the accommodating groove from the top edge of the contact arm, and the extending portion is located between the side wall top plate portion and the stopping portion.

In a preferred embodiment, the side wall and the end wall enclose a slot, the contact arm has a contact portion located at an upper end thereof and protruding into the slot, and the extending portion extends from a top edge of the contact portion toward the side wall side plate portion.

In a preferred embodiment, the elastic arm is provided with a connecting portion extending from a bottom edge of the side wall side plate portion to be bent inward and the contact arm extending from an inner side edge of the connecting portion to be bent upward, and the connecting portion is exposed to a bottom surface of the insulating body.

In a preferred embodiment, the stop portion is a protrusion that is torn from the side wall side plate portion and extends into the accommodating groove, and the extending portion is located above and adjacent to the stop portion.

In a preferred embodiment, the end wall reinforcing sheet is provided with an end wall top plate portion covering the top surface of the end wall and an end wall inner plate portion extending by being bent downward from the longitudinal inner side of the end wall top plate portion, the end wall inner plate portion covers the inner wall surface of the end wall, and the side wall top plate portion is connected to both lateral ends of the end wall top plate portion.

In a preferred embodiment, the end wall reinforcing sheet is further provided with end wall side plate portions extending from the longitudinal outer sides of the end wall top plate portion in a downward bending manner, and welding legs extending downward from the bottom edges of the end wall side plate portions, the end wall side plate portions cover the outer wall surfaces of the end walls, and the welding legs extend downward beyond the bottom surface of the insulating body.

In a preferred embodiment, the side wall reinforcing plate is provided with a guide portion extending obliquely downward from an inner side edge of the side wall top plate portion, and the guide portion is located above the extending portion and the contact arm.

In a preferred embodiment, one end of the side wall reinforcing sheet in the longitudinal direction, which is away from the end wall top plate portion, is provided with a stopper portion extending downward from the guide portion, and the extending portion is located between the stopper portion and the end wall inner plate portion in the longitudinal direction.

In a preferred embodiment, the side wall is provided with a concave portion corresponding to the receiving groove, and the side wall top plate portion, the side wall side plate portion and the elastic arm are at least partially located in the concave portion and jointly enclose the receiving groove.

In a preferred embodiment, the blocking portion covers at least a part of the inner wall surface of the side wall and is provided with an embedded portion buckled with the side wall, and the embedded portion extends into the side wall from the bottom edge of the blocking portion in an inclined mode.

Compared with the prior art, the utility model discloses following beneficial effect has: the lateral wall reinforcing sheet is provided with a lateral wall top plate part covering the top surface of the lateral wall, a lateral wall lateral plate part bending downwards and extending from the outer side edge of the lateral wall top plate part, and an elastic arm bending inwards and extending upwards from the bottom edge of the lateral wall lateral plate part, the elastic ratio length of the elastic arm is enhanced by the arrangement of the elastic arm, and therefore the contact stability during plugging is guaranteed. The side wall top plate portion, the side wall side plate portion and the elastic arm are arranged in a surrounding mode to form an accommodating groove, the side wall side plate portion is provided with a stopping portion extending into the accommodating groove, the elastic arm is provided with a contact arm extending upwards from the side wall side plate portion and an extending portion extending into the accommodating groove from the top edge of the contact arm, and therefore the elastic arm forms a cantilever structure, the contact arm is made to be elastic, hard interference when the electric connector is plugged is avoided, and abrasion of a metal reinforcing piece during plugging and pulling is further reduced. The extending part is located between the side wall top plate part and the stopping part, and the structure ensures that when the electric connector is plugged, the side wall top plate part and the stopping part play a role in supporting the extending part, so that the problems of warping, deformation and the like of the elastic arm in the plugging process can be better avoided.

Drawings

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

Fig. 2 is a schematic perspective view of the electrical connector shown in fig. 1 from another angle.

Fig. 3 is a partial cross-sectional view of the electrical connector shown in fig. 1.

Fig. 4 is a perspective view of a metal reinforcement member in the electrical connector shown in fig. 1.

Fig. 5 is a perspective view of the middle plate-to-plate connector of the present invention.

Fig. 6 is a partial cross-sectional view of the board-to-board connector shown in fig. 5.

Fig. 7 is a sectional view of the board-to-board connector shown in fig. 5.

Detailed Description

Referring to fig. 1 to 7, a preferred embodiment of the present invention discloses a board-to-board connector, which includes an electrical connector 100 and a mating connector 200 that are mated with each other. The electrical connector 100 includes a housing 10 extending along a longitudinal direction, a conductive terminal 20 fixed on the housing 10, and metal reinforcements 30 located at two longitudinal ends of the 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, i.e. the island 11 is located in the slot 14, and the slot 14 is used for inserting the docking connector 200.

The metal reinforcement 30 is assembled and fixed on the end wall 13 of the housing 10 to enhance the overall strength of the electrical connector 100. As shown in fig. 2 to 4, the metal reinforcing member 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 includes an end wall top plate portion 311 covering the top surface of the end wall 13, an end wall inner plate portion 312 extending downward from the longitudinal inner side of the end wall top plate portion 311, and an end wall side plate portion 313 extending downward from the longitudinal outer side of the end wall top plate portion 311. The end wall inner plate 312 is shielded from the inner wall surface of the end wall 13, and the end wall side plate 313 is shielded from the outer wall surface of the end wall 13.

The end wall top plate 311 does not extend beyond the top surface of the end wall 13 and the outer surface of the end wall side plate 313 does not extend beyond the outer wall surface of the end wall 13, that is, the end wall top plate 311 and the end wall side plate 313 do not increase the volume of the whole electrical connector 100 additionally while increasing the strength of the end wall 13 of the insulating body 10. The end wall reinforcing plate 31 further includes a soldering leg 314 extending downward from the bottom edge of the end wall side plate portion 313, i.e. the end wall side plate portion 313 extends downward beyond the bottom surface of the insulating housing 10, and the soldering leg 314 can be fixedly mounted on a circuit board (not shown) electrically connected to the electrical connector 100.

The side wall reinforcing sheet 32 is provided with a side wall top plate 33 covering the top surface of the side wall 12, a side wall side plate 34 bent downward from the outer side edge of the side wall top plate 33, and an elastic arm 35 bent inward from the bottom edge of the side wall side plate 34 and extending upward, and the side wall top plate 33 is connected to both lateral ends of the end wall top plate 311. The elastic arm 35 is bent inward from the bottom edge of the side wall side plate portion 34 and extends upward, so that the elastic ratio of the elastic arm 35 is increased, and the contact stability during plugging is ensured. The side wall 12 is provided with a concave portion 15 corresponding to the side wall reinforcing sheet 32, the side wall top plate portion 33, the side wall side plate portion 34 and the elastic arm 35 are at least partially located in the concave portion 15 and jointly enclose to form an accommodating groove 320, the elastic arm 35 forms a cantilever structure at the accommodating groove 320, so that the elastic arm 35 has elasticity, hard interference during plugging of the electrical connector 100 is avoided, and abrasion during plugging and unplugging of the metal reinforcing member 30 is reduced.

The side wall side plate 34 at least partially covers the outer wall surface of the side wall 12 and does not exceed the outer wall surface of the side wall 12, that is, the side wall side plate 34 does not increase the overall volume of the electrical connector 100 while increasing the strength of the side wall 12 of the insulating body 10. The side wall side plate portion 34 is further provided with a stop portion 341 extending into the receiving groove 320, and the stop portion 341 is located below the free end of the elastic arm 35; the stopper 341 supports the free end of the elastic arm 35 when the free end of the elastic arm 35 moves downward, thereby preventing the elastic arm 35 from being deformed while ensuring the stability of the force of the elastic arm 35. In this embodiment, the stop portion 341 is a protrusion torn from the sidewall side plate portion 34 and extending into the receiving groove 320, and the free end of the elastic arm 35 is located above the stop portion 341 and adjacent to the stop portion 341.

The elastic arm 35 has a connecting portion 351 bent and extended inward from the bottom edge of the side wall side plate portion 34, a contact arm 352 bent and extended upward from the inner edge of the connecting portion 351, and an extending portion 353 extended into the receiving groove 320 from the top edge of the contact arm 352. In this embodiment, the connecting portion 351 is exposed on the bottom surface of the insulating housing 10, and the connecting portion 351 can be used as a soldering portion for being fixedly mounted on a circuit board electrically connected to the electrical connector 100. The contact arm 352 is provided with a contact portion 354 at an upper end thereof and protruding into the insertion slot 14, and the extension portion 353 is formed extending from a top edge of the contact portion 354 toward the side wall side plate portion 34. The extension 353 is the free end of the elastic arm 35 and is located between the sidewall top plate portion 33 and the stop portion 341, and this structure ensures that the sidewall top plate portion 33 and the stop portion 341 play a role of supporting the extension 353 when the electrical connector 100 is plugged; so as to better prevent the elastic arm 35 from warping, deforming and the like during the plugging process.

The side wall reinforcing plate 32 is provided with a guiding portion 331 extending downward from the inner side edge of the side wall top plate portion 33, and the guiding portion 331 is located above the extending portion 353 and the contact arm 352 for guiding when the docking connector 200 is plugged, and preventing the extending portion 353 from being deformed upward. One end of the side wall reinforcing piece 32 in the longitudinal direction away from the end wall top plate portion 311 is provided with a stopper portion 332 extending downward from the guide portion 331, and the extension portion 353 is located between the stopper portion 332 and the end wall inner plate portion 312 in the longitudinal direction to prevent deformation of the elastic arm 35 in the longitudinal direction. The blocking portion 332 at least partially covers the inner wall surface of the sidewall 12 and is provided with an embedded portion 333 fastened to the sidewall 12, and the embedded portion 333 extends into the sidewall 12 from the bottom edge of the blocking portion 332 in an inclined manner, so as to ensure good bonding between the metal reinforcement 30 and the insulation body 10.

Referring to fig. 6 to 7, when the electrical connector 100 is mated with the mating connector 200, the metal bracket 40 of the mating connector 200 contacts the contact portion 354 of the metal reinforcement 30 and pushes against the contact portion 354, and the contact portion 354 drives the extension portion 353 to tilt downward toward the sidewall side plate portion 34 until the extension portion 353 abuts against the upper surface of the stop portion 341. This prevents the elastic arm 35 from being warped or deformed due to excessive displacement.

The utility model discloses in, the base incurvation of metal reinforcement 30's elastic arm 35 from lateral wall side board 34 and upwards extend and form, elastic arm 35's setting has strengthened elastic arm 35's elasticity than length to the stability of contact when pegging graft has been guaranteed. The side wall top plate portion 33, the side wall side plate portion 34 and the elastic arm 35 are surrounded to form the receiving slot 320, the elastic arm 35 is provided with a contact arm 352 extending upwards from the side wall side plate portion 34 and an extending portion 353 extending into the receiving slot 320 from the top edge of the contact arm 352, and therefore the elastic arm 35 forms a cantilever structure, so that the contact arm 352 has elasticity, hard interference during plugging of the electrical connector 100 is avoided, and abrasion during plugging and unplugging of the metal reinforcing member 30 is reduced. Meanwhile, the extension portion 353 is located between the sidewall top plate portion 33 and the stop portion 341, which ensures that the sidewall top plate portion 33 and the stop portion 341 play a role of supporting the extension portion 353 when the electrical connector 100 is plugged, so as to better avoid the problems of warping, deformation and the like of the elastic arm 35 in the plugging process.

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, conductive terminals fixed on the insulating body and metal reinforcing pieces 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 reinforcing sheet is provided with a side wall top plate portion covering the top surface of the side wall, a side wall side plate portion bending and extending downwards from the outer side edge of the side wall top plate portion, and an elastic arm bending inwards from the bottom edge of the side wall side plate portion and extending upwards, the side wall top plate portion, the side wall side plate portion and the elastic arm are surrounded to form an accommodating groove, the side wall side plate portion is provided with a stopping portion extending into the accommodating groove, the elastic arm is provided with a contact arm extending upwards from the side wall side plate portion and an extending portion extending into the accommodating groove from the top edge of the contact arm, and the extending portion is located between the side wall top plate portion and the stopping portion.

2. The electrical connector of claim 1, wherein: the side wall and the end wall are surrounded to form a slot, the contact arm is provided with a contact part which is positioned at the upper end of the contact arm and protrudes into the slot, and the extension part extends from the top edge of the contact part to the side plate part of the side wall.

3. The electrical connector of claim 2, wherein: the elastic arm is provided with a connecting part which is bent inwards and extends from the bottom edge of the side wall side plate part and a contact arm which is bent upwards and extends from the inner side edge of the connecting part, and the connecting part is exposed on the bottom surface of the insulating body.

4. The electrical connector of claim 1, wherein: the stop part is a bulge which is torn from the side wall side plate part and extends into the accommodating groove, and the extending part is positioned above the stop part and is adjacent to the stop part.

5. The electrical connector of claim 1, wherein: the end wall reinforcing sheet is provided with an end wall top plate part covering the top surface of the end wall and an end wall inner plate part bending and extending downwards from the longitudinal inner side of the end wall top plate part, the end wall inner plate part covers the inner wall surface of the end wall, and the side wall top plate part is connected to the two transverse ends of the end wall top plate part.

6. The electrical connector of claim 5, wherein: the end wall reinforcing sheet is further provided with an end wall side plate portion extending from the longitudinal outer side of the end wall top plate portion in a downward bending mode and welding feet extending from the bottom edge of the end wall side plate portion in a downward bending mode, the end wall side plate portion covers the outer wall surface of the end wall, and the welding feet extend downwards to exceed the bottom surface of the insulating body.

7. The electrical connector of claim 5, wherein: the side wall reinforcing sheet is provided with a guide part which is obliquely downwards extended from the inner side edge of the side wall top plate part, and the guide part is positioned above the extension part and the contact arm.

8. The electrical connector of claim 7, wherein: one end of the side wall reinforcing sheet far away from the end wall top plate part in the longitudinal direction is provided with a blocking part extending downwards from the guide part, and the extending part is located between the blocking part and the end wall inner plate part in the longitudinal direction.

9. The electrical connector of claim 8, wherein: the side wall is provided with a concave part corresponding to the accommodating groove, and the side wall top plate part, the side wall side plate part and the elastic arm are at least partially positioned in the concave part and jointly enclose to form the accommodating groove.

10. The electrical connector of claim 8, wherein: the blocking part at least partially covers the inner wall surface of the side wall and is provided with an embedded part buckled on the side wall, and the embedded part obliquely extends into the side wall from the bottom edge of the blocking part.