CN106936002B

CN106936002B - Electric connector

Info

Publication number: CN106936002B
Application number: CN201610074898.6A
Authority: CN
Inventors: 陈正一
Original assignee: Shenzhen Deren Electronic Co Ltd
Current assignee: Heshan borati Electronics Co.,Ltd.
Priority date: 2015-12-30
Filing date: 2016-02-02
Publication date: 2020-03-20
Anticipated expiration: 2036-02-02
Also published as: CN106936002A; CN205565097U

Abstract

The invention discloses an electric connector, comprising: the insulating body comprises a step part and a tongue plate extending forwards from the step part; a first conductive terminal; the contact parts of the second conductive terminal and the first conductive terminal are arranged on the tongue plate; a ground strip fixed to the step portion; the metal shell wraps the insulation body, the rear end of the metal shell is fixed with the grounding sheet, and a plug-in space is formed between the metal shell and the insulation body in a surrounding mode. Through the mode, the size of the electric connector can be reduced, and the electric connector is beneficial to miniaturization.

Description

Electric connector

Technical Field

The invention relates to the technical field of mechanical design, in particular to an electric connector.

Background

Electrical connectors, also known as circuit connectors, are conductor devices used to bridge two conductors in a circuit so that current or signals can flow from one conductor to the other.

The electric connector in the prior art comprises an insulating body, a metal shell and a conductive terminal, wherein a contact part of the conductive terminal is arranged on a tongue plate of the insulating body, a supporting block is arranged at the rear end of a step part of the insulating body, the metal shell wraps the insulating body and is positioned on the supporting block, and the supporting block plays a role in supporting and fixing the metal shell. The applicant of the present invention found in long-term studies that: the length of the supporting block is usually longer, so that a longer contact surface is formed between the metal shell and the supporting block, the stability of the metal shell is improved, but the length of the electric connector is longer, and the volume of the electric connector is increased.

Disclosure of Invention

The invention mainly solves the technical problem of providing an electric connector, which can reduce the volume of the electric connector and is beneficial to the miniaturization of the electric connector.

In order to solve the technical problems, the invention adopts a technical scheme that: provided is an electrical connector including: the insulating body comprises a step part and a tongue plate extending forwards from the step part; a first conductive terminal; the contact parts of the second conductive terminal and the first conductive terminal are arranged on the tongue plate; a ground strip fixed to the step portion; the metal shell wraps the insulation body, the rear end of the metal shell is fixed with the grounding sheet, and a plug-in space is formed between the metal shell and the insulation body in a surrounding mode.

The insulating body further comprises a fixing part extending backwards from the step part; the fixing part is protruded out of the metal shell; the welding parts of the first conductive terminal and the second conductive terminal are protruded out of the fixing part.

The metal shell comprises a top wall, a bottom wall and a side wall connecting the top wall and the bottom wall, the rear ends of the top wall and the bottom wall extend towards the grounding sheet to form supporting parts, and the supporting parts are fixed with the grounding sheet.

The width of the fixing part is larger than that of the step part, and the supporting part abuts against the fixing part.

Wherein the support part is annular in shape.

Wherein the metal housing further comprises a ground housing; the grounding shell comprises a transverse part and lateral parts extending from two sides of the transverse part; the transverse part is arranged on the fixing part and fixedly connected with the grounding piece and the supporting part, and the lateral part is arranged on the side wall and extends to form a grounding pin.

Wherein, a first reinforcing part and a second reinforcing part respectively extend backwards from two sides of the fixing part; the welding part of the first conductive terminal and the second conductive terminal is positioned between the first reinforcing part and the second reinforcing part; the lateral portion extends onto the first and second reinforcing portions, which support the lateral portion.

Wherein, the height of the fixed part is less than or equal to the height of the step part.

Wherein the metal housing comprises a first housing and a second housing; the rear end of the first shell is provided with a first opening, the second shell comprises a supporting part matched with the first opening, the supporting part is positioned in the first opening, and the supporting part is fixed with the first shell; the supporting part is provided with a second opening, the grounding piece and the fixing part are located in the second opening, and the grounding piece and the supporting part are fixed.

The second shell further comprises a lateral part connected with a supporting part, the lateral part is located on the side wall of the first shell, and a grounding pin extends from the lateral part.

Wherein the first housing is integrally formed and the length of the electrical connector is less than 6 millimeters.

Wherein the metal shell comprises a third shell and a fourth shell; the supporting part is extended from the rear end of the third shell and is connected with the grounding sheet, and the third shell, the supporting part and the grounding sheet are integrally formed; the fourth housing is fixed to the third housing.

The ends of the welding parts of the first conductive terminal and the second conductive terminal are arranged in two rows, and the grounding sheet covers the fixing part.

The invention has the beneficial effects that: different from the situation of the prior art, the first conductive terminal and the second conductive terminal are arranged on the tongue plate of the insulating body, the grounding sheet is fixed on the step part of the insulating body, the metal shell wraps the insulating body, the rear end of the metal shell is fixed with the grounding sheet, and the metal shell and the insulating body enclose an inserting space.

Drawings

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

FIG. 2 is a perspective view of another perspective of an embodiment of the electrical connector of the present invention;

FIG. 3 is an exploded schematic view of an embodiment of the electrical connector of the present invention;

FIG. 4 is a schematic cross-sectional view of an embodiment of the electrical connector of the present invention;

FIG. 5 is a schematic view of the side supporting portion abutting against the fixing portion in the embodiment of the electrical connector of the present invention;

FIG. 6 is an exploded view of an embodiment of the electrical connector of the present invention with the metal shell in an alternative configuration;

FIG. 7 is a perspective view of an embodiment of the electrical connector of the present invention with the metal shell in an alternative configuration;

FIG. 8 is a perspective view of an embodiment of the electrical connector of the present invention with the metal shell in yet another configuration;

FIG. 9 is a schematic cross-sectional view of an embodiment of the electrical connector of the present invention with the metal shell in yet another configuration;

fig. 10 is a schematic view of the first conductive terminal and the second conductive terminal arranged in two rows when the metal housing has yet another configuration according to the electrical connector embodiment of the present invention;

FIG. 11 is a schematic view of a grounding plate covering a fixing portion of an electrical connector according to another embodiment of the present invention when the metal shell has another structure;

fig. 12 is a schematic view of the embodiment of the electrical connector according to the invention, in which the extending portion of the fourth housing covers the grounding plate when the metal housing has yet another structure.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to 4, the electrical connector 20 includes an insulative housing 21, a first conductive terminal 22, a second conductive terminal 23, a grounding plate 24 and a metal shell 25.

The insulating body 21 includes a stepped portion 211 and a tongue portion 212 extending forward from the stepped portion 211. The contact portions of the second conductive terminal 23 and the first conductive terminal 22 are disposed on the tongue plate 212. The ground strip 24 is fixed to the stepped portion 211. The metal shell 25 wraps the insulating body 21, and the rear end of the metal shell 25 is fixed to the grounding plate 24, wherein an insertion space 40 is defined between the metal shell 25 and the insulating body 21.

Because the metal shell 25 is directly fixed to the ground slice 24, there is no need to set a support block for supporting the metal shell 25 at the rear end of the insulating body 21, wherein the volume of the support block is usually longer, so that the length of the electrical connector 20 is also longer, and after the support block is omitted, the length of the electrical connector 20 is reduced, and then the volume of the electrical connector 20 is reduced, which is beneficial to the miniaturization of the electrical connector 20. The insulating body 21 further includes a fixing portion 213 extending rearward from the stepped portion 211. The fixing portion 213 protrudes from the metal housing 25, the soldering portions of the first conductive terminal 22 and the second conductive terminal 23 protrude from the fixing portion 213, and the fixing portion 213 serves to prevent the metal housing 25 from sliding backwards. In the present embodiment, it is preferable that the height of the fixing portion 213 is less than or equal to the height of the stepped portion 211; in addition, the thickness of the stepped portion 211 is larger than that of the tongue plate 212.

The metal housing 25 includes a top wall 251, a bottom wall 252 and a side wall 253 connecting the top wall 251 and the bottom wall 252, wherein the rear ends of the top wall 251 and the bottom wall 252 extend toward the grounding strip 24 to form a support portion 254, and the support portion 254 is fixed to the grounding strip 24. Among them, the support 254 plays a role of supporting the top wall 251 and the bottom wall 252. In the present embodiment, the fixing manner between the support portion 254 and the ground plate 24 is preferably welding fixing or screwing fixing; the support 254 is annular in shape.

The width of the fixing portion 213 is larger than that of the stepped portion 211, and the supporting portion 254 abuts against the fixing portion 213. The fixing portion 213 functions to block the metal case 25 from sliding backward. Specifically, a portion of the supporting portion 254 extending from the side wall 253 is abutted to the fixing portion 213, wherein the portion of the supporting portion 254 extending from the side wall 253 can be referred to as a side supporting portion 41, as shown in fig. 5. Of course, in other alternative embodiments, glue is filled between the supporting portion 254 and the fixing portion 213 to fix the supporting portion 254 and the fixing portion 213.

Further, the metal housing 25 further includes a grounding housing 255. The ground housing 255 includes a lateral portion 256 and lateral portions 257 extending from both sides of the lateral portion 256. The transverse portion 256 is disposed on the fixing portion 213 and is connected and fixed with the grounding plate 24 and the supporting portion 254, the lateral portion 257 is disposed on the sidewall 253, and the grounding pin extends from the lateral portion 257. When the lateral portion 256 is connected to the ground plate 24, the ground housing 255 communicates with the ground plate 24. In the present embodiment, the transverse portion 256 is preferably fixed to the support portion 254 and the ground plate 24 by laser welding, and the transverse portion 256 is preferably connected to the support portion 254 and the ground plate 24 seamlessly.

To facilitate securing the lateral portion 257 to the sidewall 253, the lateral portion 257 extends toward the sidewall 253 with a projection 2571, the sidewall 253 is provided with a locking hole 2531, and the projection 2571 is locked into the locking hole 2531 to secure the lateral portion 257 to the sidewall 253. Lateral portion 257 has ground contact leg 2572 extending therefrom.

A first reinforcement portion 2131 and a second reinforcement portion 2132 extend rearward from both sides of the fixing portion 213. The soldering portions of the first and second

conductive terminals

22 and 23 are located between the first and second reinforcing

portions

2131 and 2132. The lateral portion 256 extends to the first and

second reinforcement portions

2131 and 2132, and the first and

second reinforcement portions

2131 and 2132 support the lateral portion 256, in short, both sides of the lateral portion 256 are supported by the first and

second reinforcement portions

2131 and 2132.

Of course, the metal housing is not limited to only one structure described above, and two other structures of the metal housing are described below, (1) referring to fig. 6 to 7, the metal housing includes a first housing 36 and a second housing 37.

The rear end of the first housing 36 is provided with a first opening 361, and the second housing 37 includes a support 371 adapted to the first opening 361, wherein the support 371 is located in the first opening 361, and the support 371 is fixed to the first housing 36. The support 371 is provided with a second opening 3711, the ground plate 24 and the fixing portion 213 are located in the second opening 3711, and the ground plate 24 is fixed to the support 371, in short, the support 371 is annular in shape, the outer ring of the support 371 is fixed to the first housing 36, and the inner ring of the support 371 is fixed to the ground plate 24.

Further, the width of the fixing portion 213 is larger than that of the step portion 211, the supporting portion 371 abuts against the fixing portion 213, and the fixing portion 213 functions to block the metal shell from sliding backwards.

The second housing 37 further includes a lateral portion 372 connected to the support portion 371, the lateral portion 372 is located on the sidewall 253 of the first housing 36, and the lateral portion 372 extends with a grounding pin 3721. To facilitate securing the lateral portion to the side wall of the first housing 36, the lateral portion 372 extends toward the side wall of the first housing 36 to form a protrusion 3722, the side wall of the first housing 36 is provided with a locking hole 362, and the protrusion 3722 is locked into the locking hole 362 to secure the lateral portion 372 to the side wall of the first housing 36.

It is worth mentioning that: the first housing 36 is a seamless housing and the first housing 36 is integrally formed and the overall length of the electrical connector 20 is less than or equal to 6 millimeters.

(2) As shown in fig. 8 to 12, the metal case includes a third case 46 and a fourth case 47.

The support part 461 extends from the rear end of the third housing 46, the support part 461 is connected to the ground contact piece 44, and the third housing 46, the support part 461 and the ground contact piece 44 are integrally formed. The fourth housing is fixed to the third housing 46.

Further, the ends of the soldering portions of the first and second

conductive terminals

42 and 43 are arranged in two rows, and the ground plate 48 covers the fixing portion. The fourth housing 47 is provided with an extension 471, and the extension 471 covers the ground strip 48.

In the embodiment of the invention, the first conductive terminal and the second conductive terminal are arranged on the tongue plate of the insulating body, the grounding sheet is fixed on the step part of the insulating body, the metal shell wraps the insulating body, the rear end of the metal shell is fixed with the grounding sheet, and the metal shell and the insulating body enclose an inserting space.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An electrical connector, comprising:

the insulating body comprises a step part and a tongue plate extending forwards from the step part;

a first conductive terminal;

the contact parts of the second conductive terminal and the first conductive terminal are arranged on the tongue plate;

a ground strip fixed to the step portion;

the metal casing wraps the insulation body, and the rear end of metal casing is fixed mutually with the grounding piece, wherein, enclose into the grafting space between metal casing and the insulation body, the metal casing includes roof, diapire and the lateral wall of connecting roof and diapire, the rear end of roof and diapire all court the grounding piece extends there is the supporting part, the supporting part with the grounding piece is fixed mutually through the welding, perhaps the supporting part with grounding piece integrated into one piece.

2. The electrical connector of claim 1,

the insulating body further comprises a fixing part which is obtained by extending backwards from the step part;

the fixing part is protruded out of the metal shell;

the welding parts of the first conductive terminal and the second conductive terminal are protruded out of the fixing part.

3. The electrical connector of claim 2,

the width of the fixing part is larger than that of the step part, and the supporting part is abutted to the fixing part.

4. The electrical connector of claim 2,

the support portion is annular in shape.

5. The electrical connector of claim 2,

the metal shell further comprises a grounding shell;

the grounding shell comprises a transverse part and lateral parts extending from two sides of the transverse part;

the transverse part is arranged on the fixing part and fixedly connected with the grounding piece and the supporting part, and the lateral part is arranged on the side wall and extends to form a grounding pin.

6. The electrical connector of claim 5,

a first reinforcing part and a second reinforcing part respectively extend backwards from two sides of the fixing part;

the welding part of the first conductive terminal and the second conductive terminal is positioned between the first reinforcing part and the second reinforcing part;

the lateral portion extends onto the first and second reinforcing portions, which support the lateral portion.

7. The electrical connector of claim 2,

the height of the fixing part is smaller than or equal to that of the step part.

8. The electrical connector of claim 2,

the metal shell comprises a first shell and a second shell;

the rear end of the first shell is provided with a first opening, the second shell comprises a supporting part matched with the first opening, the supporting part is positioned in the first opening, and the supporting part is fixed with the first shell;

the supporting part is provided with a second opening, the grounding piece and the fixing part are located in the second opening, and the grounding piece and the supporting part are fixed.

9. The electrical connector of claim 8,

the second shell further comprises a lateral part connected with a supporting part, the lateral part is positioned on the side wall of the first shell, and a grounding pin extends from the lateral part.

10. The electrical connector of claim 8,

the first housing is integrally formed and the length of the electrical connector is less than 6 millimeters.

11. The electrical connector of claim 2,

the metal shell comprises a third shell and a fourth shell;

the supporting part is extended from the rear end of the third shell and is connected with the grounding sheet, and the third shell, the supporting part and the grounding sheet are integrally formed;

the fourth housing is fixed to the third housing.

12. The electrical connector of claim 11,

the ends of the welding parts of the first conductive terminal and the second conductive terminal are arranged in two rows, and the other grounding sheet covers the fixing part.