CN214797875U

CN214797875U - Electric connector and assembly thereof

Info

Publication number: CN214797875U
Application number: CN202120717579.9U
Authority: CN
Inventors: 谭丙权; 张晓庆; 许立军
Original assignee: Dongguan Leader Precision Industry Co Ltd
Current assignee: Dongguan Leader Precision Industry Co Ltd
Priority date: 2021-04-08
Filing date: 2021-04-08
Publication date: 2021-11-19
Anticipated expiration: 2031-04-08
Also published as: TWM629747U

Abstract

An electric connector comprises an insulating body, a plurality of conductive terminals, a first metal shell, a second metal shell and a third metal shell. The insulating body comprises a tongue plate. The first metal shell includes a docking space surrounding the tongue plate. The second metal shell comprises a supporting part used for abutting against the circuit board to support the second metal shell. The supporting part can prevent the end part of the electric connector from sagging, so that the risk of empty welding when the electric connector is welded on a circuit board is reduced. The third metal shell includes a frame portion at least partially encasing the first metal shell and the second metal shell. By arranging the frame part, the structural strength of the electric connector is increased, and the capability of the electric connector for bearing external insertion damage is improved. The utility model discloses still relate to an electric connector subassembly, it includes electric connector with the circuit board.

Description

Electric connector and assembly thereof

Technical Field

The utility model relates to an electric connector and subassembly thereof belongs to connector technical field.

Background

A conventional board-end electrical connector generally includes an insulative housing, a plurality of conductive terminals, and a metal housing, wherein the metal housing includes a fixing pin for being soldered to a circuit board. However, when the electrical connector is mounted on the circuit board, the metal shell and the circuit board lack effective support, and the mating end of the electrical connector is easily inclined downward, thereby causing a void to easily occur when soldering the fixing pins. In addition, the metal shell is weak in structural strength due to lack of effective peripheral protection, and is easily cracked when a docking connector is inserted many times or when other types of electrical connectors are mistakenly inserted into the electrical connectors.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a higher and better electric connector of structural strength of welding reliability and subassembly thereof.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an electrical connector, comprising:

an insulator body including a tongue plate;

the conductive terminals are fixed on the insulating body and comprise butting parts exposed out of the tongue plates;

the first metal shell is fixed on the insulating body and comprises a butt joint space surrounding the tongue plate, and the butt joint space comprises a butt joint port;

the second metal shell is fixed on the first metal shell;

the second metal shell comprises a supporting part used for abutting against a circuit board to support the second metal shell;

the electrical connector further comprises a third metal shell fixed on the second metal shell, wherein the third metal shell comprises a frame body part at least partially wrapping the first metal shell and the second metal shell.

As a further improved technical solution of the present invention, the first metal shell includes a first top wall, a first bottom wall opposite to the first top wall, and two first side walls connecting the first top wall and the first bottom wall, and the docking space is defined by the first top wall, the first bottom wall, and the two first side walls.

As the utility model discloses further modified technical scheme, the second metal casing includes the second roof and certainly two second lateral walls that form are bent to the both sides of second roof, each the second lateral wall includes the supporting part and be used for being fixed in the first fixed foot of circuit board.

As a further improved technical scheme of the utility model, the second roof with first roof is fixed through spot welding.

As a further improved technical solution of the present invention, the supporting portion is closer to the butt joint port than the first fixing leg.

As the utility model discloses further modified technical scheme, the third metal casing includes the third roof and certainly two third lateral walls that form are bent to the both sides of third roof, each the third lateral wall is including being used for being fixed in the fixed foot of second of circuit board.

As a further improved technical solution of the present invention, the electric connector is located at the same side and close to each other of the first fixing pin and the second fixing pin are used for welding and fixing in the same through hole of the circuit board.

As a further improved technical solution of the present invention, the third top wall is fixed to the second top wall by spot welding, and the frame body portion is close to the interface.

As a further improved technical scheme of the utility model, the electric connector is the USB Type C socket electric connector.

The utility model also discloses an electric connector subassembly, it includes:

the aforementioned electrical connector; and

and the second metal shell and/or the third metal shell are/is fixed on the circuit board.

Compared with the prior art, the supporting part used for abutting against the circuit board is arranged, so that the end part of the electric connector can be prevented from sagging, and the risk of empty welding when the electric connector is welded on the circuit board is reduced; in addition, the frame body part is arranged, so that the structural strength of the electric connector is increased, and the capability of the electric connector for bearing external insertion damage is improved.

Drawings

Fig. 1 is a perspective view of the electrical connector assembly of the present invention, wherein the electrical connector is mounted on a circuit board.

Fig. 2 is an exploded perspective view of fig. 1, wherein the electrical connector is separated from the circuit board.

Fig. 3 is a perspective view of the electrical connector of fig. 2 at another angle.

Fig. 4 is a side view of the electrical connector of fig. 2.

Fig. 5 is a partially exploded perspective view of the electrical connector of the present invention.

Fig. 6 is a further exploded perspective view of fig. 5.

Fig. 7 is an exploded perspective view from another angle of fig. 6.

Detailed Description

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. If several embodiments exist, the features of these embodiments may be combined with each other without conflict. When the description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The description set forth below in the exemplary detailed description does not represent all embodiments consistent with the present invention; rather, they are merely examples of apparatus, products, and/or methods consistent with certain aspects of the invention, as recited in the claims of the invention.

The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. As used in the specification and claims of this application, the singular form of "a", "an", or "the" is intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the terms "first," "second," and the like as used in the description and in the claims of the present invention do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. Unless otherwise indicated, the terms "front," "back," "up," "down," and the like in the description of the invention are used for convenience of description and are not limited to a particular position or spatial orientation. The word "comprise" or "comprises", and the like, is an open-ended expression meaning that an element that precedes "includes" or "comprising" includes "that the element that follows" includes "or" comprises "and its equivalents, that do not preclude the element that precedes" includes "or" comprising "from also including other elements. If the utility model discloses in appear "a plurality of", its meaning indicates two and more than two.

Referring to fig. 1 and 2, an electrical connector assembly 300 is disclosed, which includes an electrical connector 100 and a circuit board 200 mounted with the electrical connector 100. In the illustrated embodiment of the present invention, the electrical connector is a USB Type C receptacle electrical connector. Of course, in other embodiments, the electrical connector may be other types of connectors, such as an HDMI socket connector or a USB socket connector.

The circuit board 200 includes a plurality of gold fingers 201 and a plurality of through holes 202 located at both sides of the gold fingers 201 in the left-right direction.

Referring to fig. 3 to 7, the electrical connector 100 includes an insulating housing 1, a plurality of conductive terminals 2 fixed to the insulating housing 1, a first metal housing 3 fixed to the insulating housing 1, a second metal housing 4 fixed to the first metal housing 3, and a third metal housing 5 fixed to the second metal housing 4.

The insulating body 1 comprises a base and a tongue plate 12 projecting forward from the base. The tongue plate 12 includes a first surface (e.g., an upper surface) and a second surface (e.g., a lower surface) opposite the first surface.

The conductive terminal 2 includes a butt portion 23 exposed to the tongue plate 12 and a soldering portion 24 for soldering and fixing to the gold finger 201. In the illustrated embodiment of the present invention, the conductive terminals 2 include a plurality of first conductive terminals (e.g., upper row conductive terminals) and a plurality of second conductive terminals (e.g., lower row conductive terminals), and each of the first conductive terminals and each of the second conductive terminals include the abutting portion 23 and the welding portion 24. Specifically, the mating portion 23 of the first conductive terminal is exposed to the first surface, and the mating portion 23 of the second conductive terminal is exposed to the second surface. The abutting portion 23 of the first conductive terminal and the abutting portion 23 of the second conductive terminal are used for contacting with the conductive terminals of the abutting connector (not shown) to realize electrical connection. The soldering portions 24 of the first conductive terminals and the soldering portions 24 of the second conductive terminals are arranged in two front rows and two rear rows and are coplanar (please refer to fig. 3), so as to be soldered to the corresponding gold fingers 201.

The first metal shell 3 comprises a docking space 30 surrounding the tongue plate 12, the docking space 30 comprising a docking interface 301. Specifically, the first metal case 3 includes a first top wall 31, a first bottom wall 32 opposite to the first top wall 31, and two first side walls 33 connecting the first top wall 31 and the first bottom wall 32. The docking space 30 is enclosed by the first top wall 31, the first bottom wall 32 and the two first side walls 33. The first metal case 3 is not provided with any fixing leg fixed to the circuit board 200, so that the structure of the first metal case 3 is simplified and the manufacturing is easy.

The second metal shell 4 is substantially U-shaped, and includes a second top wall 41 and two second side walls 43 bent from two sides of the second top wall 41. The second top wall 41 is fixed to the first top wall 31 by spot welding. Each of the second sidewalls 43 includes a support portion 431 extending downward and a first fixing leg 432 extending downward and used for fixing to the circuit board 200. The supporting portion 431 is used for abutting against the circuit board 200 to support the second metal shell 4, so as to prevent the end (e.g. front end) of the electrical connector 100 from sagging, thereby reducing the risk of solder missing when the electrical connector 100 is soldered to the circuit board 200. Specifically, the first fixing leg 432 is used for being fixed in the through hole 202 of the circuit board 200 by soldering. In the illustrated embodiment of the present invention, when the electrical connector 100 is assembled, the supporting portion 431 is closer to the mating interface 301 than the first fixing leg 432. So configured, the support portion 431 can be disposed close to the mating interface 301, thereby providing better support to the electrical connector 100.

The third metal shell 5 includes a frame portion 50 at least partially enclosing the first metal shell 3 and the second metal shell 4. The housing portion 50 increases the structural strength of the electrical connector 100 and improves the ability of the electrical connector 100 to withstand external insertion damage. In the illustrated embodiment of the present invention, the housing portion 50 is substantially rectangular and is adjacent to the mating interface 301 to provide protection to the connector 100 during the initial insertion of the mating connector, thereby improving the resistance of the connector 100 to external insertion damage.

In the illustrated embodiment of the present invention, the third metal shell 5 includes a third top wall 51 and two third side walls 53 bent from both sides of the third top wall 51. Each of the third sidewalls 53 includes a second fixing leg 532 for fixing to the circuit board 200. The third top wall 51 and the second top wall 41 are fixed by spot welding. In the illustrated embodiment of the present invention, the first fixing leg 432 and the second fixing leg 532 located on the same side of the electrical connector 100 and close to each other are used to be soldered and fixed in the same through hole 202 of the circuit board 200. By such arrangement, on one hand, the welding strength of the electrical connector 100 to the circuit board 200 is improved; on the other hand, it is beneficial to improve the grounding effect of the electrical connector 100.

Compared with the prior art, the present invention can prevent the end of the electrical connector 100 from sagging by providing the supporting portion 431 for abutting against the circuit board 200, thereby reducing the risk of empty welding when the conductive terminal 2 of the electrical connector 100 is welded to the circuit board 200; in addition, the provision of the housing portion 50 increases the structural strength of the electrical connector 100, and improves the ability of the electrical connector 100 to withstand external insertion damage.

The above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present invention should be based on the technical personnel in the technical field, although the present specification has been described in detail with reference to the above embodiments, however, the skilled in the art should understand that the technical personnel in the technical field can still modify the present invention or substitute the same, and all technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. An electrical connector (100), comprising:

an insulating body (1), the insulating body (1) comprising a tongue plate (12);

the conductive terminals (2) are fixed on the insulating body (1), and each conductive terminal (2) comprises a butt joint part (23) exposed out of the tongue plate (12);

a first metal housing (3), said first metal housing (3) being fixed to said insulating body (1), said first metal housing (3) comprising a docking space (30) surrounding said tongue plate (12), said docking space (30) comprising a docking interface (301);

a second metal housing (4), the second metal housing (4) being fixed to the first metal housing (3);

the method is characterized in that: the second metal case (4) includes a support portion (431) to abut against a circuit board (200) to support the second metal case (4);

the electrical connector (100) further comprises a third metal shell (5) fixed to the second metal shell (4), the third metal shell (5) comprising a frame portion (50) at least partially encasing the first metal shell (3) and the second metal shell (4).

2. The electrical connector (100) of claim 1, wherein: the first metal shell (3) comprises a first top wall (31), a first bottom wall (32) opposite to the first top wall (31), and two first side walls (33) connecting the first top wall (31) and the first bottom wall (32), and the butt joint space (30) is enclosed by the first top wall (31), the first bottom wall (32) and the two first side walls (33) together.

3. The electrical connector (100) of claim 2, wherein: the second metal shell (4) comprises a second top wall (41) and two second side walls (43) formed by bending from two sides of the second top wall (41), and each second side wall (43) comprises a supporting portion (431) and a first fixing pin (432) for fixing the circuit board (200).

4. The electrical connector (100) of claim 3, wherein: the second top wall (41) and the first top wall (31) are fixed by spot welding.

5. The electrical connector (100) of claim 3, wherein: the support portion (431) is closer to the docking port (301) than the first fixing foot (432).

6. The electrical connector (100) of claim 3, wherein: the third metal shell (5) comprises a third top wall (51) and two third side walls (53) formed by bending two sides of the third top wall (51), and each third side wall (53) comprises a second fixing pin (532) used for being fixed on the circuit board (200).

7. The electrical connector (100) of claim 6, wherein: the first fixing pin (432) and the second fixing pin (532) which are positioned on the same side of the electrical connector (100) and close to each other are used for being fixed in the same through hole (202) of the circuit board (200) in a welding mode.

8. The electrical connector (100) of claim 1, wherein: the third top wall (51) and the second top wall (41) are fixed by spot welding, and the frame body portion (50) is close to the mating opening (301).

9. The electrical connector (100) of claim 1, wherein: the electric connector (100) is a USB Type C socket electric connector (100).

10. An electrical connector assembly (300), comprising:

the electrical connector (100) of any of claims 1 to 9; and

a circuit board (200), the second metal housing (4) and/or the third metal housing (5) being fixed to the circuit board (200).