CN210668789U

CN210668789U - Electrical connector

Info

Publication number: CN210668789U
Application number: CN201921825944.7U
Authority: CN
Inventors: 刘坤; 葛飞波
Original assignee: Alltop Electronics Suzhou Co Ltd
Current assignee: Alltop Electronics Suzhou Co Ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-06-02
Anticipated expiration: 2029-10-28

Abstract

The utility model provides an electric connector, which comprises an insulating body, at least one group of conductive terminals and a shielding shell covering the periphery of the insulating body, the insulating body is provided with a base part, a tongue plate protruding out of the front side of the base part and a mounting part positioned on the rear side of the base part, each conductive terminal is provided with a contact part protruding out of the surface of the tongue plate, a fixing part fixed in the insulating body and a welding part positioned at the rear end of the insulating body and electrically connected to an external circuit board, the shielding shell is provided with a containing space which is opened forwards, the tongue plate is exposed in the containing space, the tongue plate has a horizontal center plane with equal distance to the upper surface and the lower surface, the distance from the horizontal center plane to the lower end surface of the mounting part is less than the distance from the horizontal center plane to the bottom wall of the shielding shell, and the width of the fixing part of at least one group of the conductive terminals is larger than that of the contact part and/or the welding part. The utility model discloses electric connector simple structure and stability are high.

Description

Electrical connector

Technical Field

The utility model relates to an electric connector especially relates to an electric connector that structure is firm.

Background

A Universal Serial Bus (USB) interface is a standard input/output interface, and is widely used in the design of many electronic devices. The traditional USB connector includes a plastic body, a conductive terminal fixed in the plastic body, and a metal housing covering the plastic body, but the conductive terminal is not fixed well in the insulating body and is installed on an external circuit board with poor stability, which results in poor stability of the electrical connection of the USB connector.

In view of the above, there is a need for an improved electrical connector to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric connector that simple structure and stability are high.

In order to achieve the above object, the present invention provides an electrical connector, which comprises an insulating housing, at least one set of conductive terminals, and a shielding housing covering the periphery of the insulating housing, wherein the insulating housing has a base portion, a tongue plate protruding from the front side of the base portion, and a mounting portion located at the rear side of the base portion, each conductive terminal has a contact portion protruding from the surface of the tongue plate, a fixing portion fixed in the insulating housing, and a soldering portion located at the rear end of the tongue plate for electrically connecting to an external circuit board, the shielding housing has a receiving space opened forward, the tongue plate protrudes from the receiving space, the tongue plate has a horizontal center plane having equal distances to the upper surface and the lower surface thereof, the distance from the horizontal center plane to the lower end surface of the mounting portion is smaller than the distance from the horizontal center plane to the bottom wall of the shielding housing, and the width of the fixing part of at least one group of the conductive terminals is larger than that of the contact part and/or the welding part.

As a further improvement of the present invention, the conductive terminal has a fixed portion and a tongue plate, the fixed portion is disposed at an angle, the insulating body has a blocking surface disposed at the rear side of the tongue plate and facing the front side of the tongue plate, and the fixed portion is abutted against the front side of the blocking surface.

As a further improvement of the utility model, the basal portion has a plurality of fixed slots of arranging along the transverse direction and is located the spacing wall of fixed slot front side, the fixed slot extends along the direction of height, the fixed part is packed into in the corresponding fixed slot and is fixed in spacing wall with block between the face.

As a further improvement of the present invention, the shielding case has fixing legs for fixing with an external circuit board.

As a further improvement of the present invention, the shielding case has a top wall, a bottom wall and a pair of side walls connected to the top wall and the bottom wall, and is at least a pair of the fixing legs are formed by tearing the side wall or the bottom wall, and each of the side wall or the bottom wall is formed by tearing the fixing legs have a pair of positioning convex portions extending downward and a concave portion located between the pair of positioning convex portions.

As a further improvement of the present invention, in the front-rear direction, the side wall or the bottom wall is torn to form the fixing leg is located at the front side of the fixing portion, and partially the fixing leg is located at the rear side of the fixing portion.

As a further improvement of the present invention, the conductive terminals include a first set of conductive terminals and a second set of conductive terminals, each of the first set of conductive terminals has a first contact portion protruding from the tongue plate and being curved, and each of the second set of conductive terminals has a second contact portion protruding from the tongue plate and being straight, and the second contact portion is located in front of the first contact portion.

As a further improvement of the present invention, each of the first set of conductive terminals further has a connecting portion extending along the front-rear direction, the top end of the fixing portion being connected to the welding portion.

As a further improvement of the present invention, the inner side of the top wall of the shielding case is provided with an insulating member, which covers the connecting portion completely from above.

As a further improvement of the present invention, each of the second group of conductive terminals has a linking portion located between the second contact portion thereof and the fixing portion thereof, and the width of the linking portion in the transverse direction is smaller than the width of the fixing portion thereof.

The distance from the horizontal central plane of the tongue plate of the electric connector to the lower end surface of the mounting part of the electric connector is less than the distance from the horizontal central plane to the bottom wall of the shielding shell of the electric connector, so that the occupied space of an external circuit board is reduced, and the mounting space is saved; and the width of the fixing part of at least one group of conductive terminals is larger than that of the contact part and/or the welding part, so that the conductive terminals can be stably combined with the insulating body to prevent the conductive terminals from withdrawing.

Drawings

Fig. 1 is a perspective assembly view of the electric connector of the present invention.

Fig. 2 is a view of the electrical connector of fig. 1 from another perspective.

Fig. 3 is an exploded perspective view of the electrical connector shown in fig. 1.

Fig. 4 is a partially exploded view of the electrical connector shown in fig. 2.

Fig. 5 is a perspective assembly view of the insulative housing and the conductive terminals of the electrical connector shown in fig. 1.

Fig. 6 is a cross-sectional view of the electrical connector shown in fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 6, an electrical connector 100 according to a preferred embodiment of the present invention is shown, wherein the electrical connector 100 is configured to be mounted on an external circuit board (not shown), and includes an insulating body 1, at least one set of conductive terminals 2, and a shielding shell 3 covering the periphery of the insulating body 1.

Referring to fig. 3 to 6, the insulating housing 1 has a base 11, a tongue plate 12 protruding from the front side of the base 11, and a mounting portion 13 extending rearward from the base 11.

The base 11 has fixing grooves 112 arranged in a lateral direction, a stopper wall 113 at a front side of the fixing grooves 112, and a stopper groove 114 at a rear side of the fixing grooves 112. The fixing groove 112 extends in a height direction, and is opened upward and forward. The limiting wall 113 partially shields the fixing groove 112 at the front side thereof, and the limiting wall 113 is intermittently disposed to form an opening 1130 communicating with the corresponding fixing groove 112. The limiting groove 114 is concavely disposed on the upper side of the base 11 and is disposed corresponding to the fixing groove 112. In this embodiment, the number of the fixing grooves 112 is four.

The tongue plate 12 is integrally formed by extending forward from the front end surface of the base 11, and the upper and lower surfaces thereof are located between the upper and lower surfaces of the base 11. As shown in fig. 6, in the present invention, the tongue plate 12 has a horizontal center plane C-C' having equal distances to the upper and lower surfaces thereof.

The mounting portion 13 is integrally formed extending rearward from the base portion 12, and has a mounting space 130 provided open rearward.

Referring to fig. 3 to 6, each of the conductive terminals 2 has a contact portion 21 exposed on the surface of the tongue plate 12, a fixing portion 22 fixed in the insulating body 1, and a soldering portion 23 located at the rear end thereof for electrically connecting to the external circuit board, and the width of the fixing portion 22 of at least one set of the conductive terminals 2 is greater than the width of the contact portion 21 and/or the soldering portion 23 thereof.

The fixing portion 22 of at least one group of conductive terminals 2 is disposed at an angle to the tongue plate 12, the insulating body 1 has a blocking surface 115 disposed at the rear side of the tongue plate 12 and facing forward, the fixing portion 22 abuts against the front side of the blocking surface, and further, the fixing portion 22 is installed in the corresponding fixing groove 112 and fixed between the limiting wall 113 and the blocking surface 115.

Meanwhile, in the present embodiment, the conductive terminals 2 include a first group of conductive terminals 2a and a second group of conductive terminals 2b, each of the first group of conductive terminals has a first contact portion 21a protruding on the tongue plate and being curved, each of the second group of conductive terminals has a second contact portion 21b protruding on the tongue plate and being straight, and in the front-back direction, the second contact portion 21b is located in front of the first contact portion 21a, so that the transmission of high-speed signals is realized through the second group of conductive terminals 2 b.

Each of the first set of conductive terminals 2a further has a connecting portion 24 connecting the top end of the fixing portion 22 and the soldering portion 23, and the connecting portion 24 extends along the front-back direction and is limited in a corresponding limiting groove 114 of the insulating body 1.

The fixing portion 22 of each conductive terminal 2 in the second set of conductive terminals 2b is L-shaped, and each conductive terminal 2b in the second set further has a connecting portion 25 located between the second contact portion 21b and the fixing portion 22 thereof, and the width of the connecting portion 25 in the transverse direction is smaller than the width of the fixing portion 22 thereof.

The second set of conductive terminals 2b are embedded and formed in the insulating body 1, and the tongue plate 12 of the insulating body 1 is provided with a plurality of through holes 121 penetrating through the second set of conductive terminals 2b along the height direction, and the through holes 121 and the conductive terminals 2 in the second set of conductive terminals 2b are correspondingly arranged so as to partially expose the conductive terminals 2 outwards.

The shielding case 3 has a top wall 31, a bottom wall 32, and a pair of side walls 33 connecting the top wall 31 and the bottom wall 32, and the top wall 31, the bottom wall 32, and the pair of side walls 33 are connected to form a receiving space 30 opened forward.

The tongue plate 12 is exposed in the accommodating space 30, and a distance h1 from a horizontal center plane C-C 'of the tongue plate 12 to the lower end surface of the mounting portion 13 is smaller than a distance h2 from the horizontal center plane C-C' to the bottom wall 32 of the shielding shell 3, so that the occupied space of an external circuit board is reduced, and the mounting space is saved.

Furthermore, the shielding shell 3 further has a plurality of fixing pins 34 for engaging and fixing with an external circuit board, so as to be stably connected with the external circuit board.

Specifically, at least one pair of the fixing legs 34 is formed by tearing the side wall 33 or the bottom wall 32, and each fixing leg 34 formed by tearing the side wall 33 or the bottom wall 32 has a pair of positioning protrusions 341 extending downward and a recess 342 located between the pair of positioning protrusions 341.

In the front-rear direction, the fixing leg 34 torn from the side wall 33 or the bottom wall 32 is located on the front side of the fixing portion 22, and a part of the fixing leg 34 is located on the rear side of the fixing portion 22 and extends from the side wall 33.

The shielding shell 3 is provided with an insulating member 4 on the inner side of the top wall 31, and the insulating member 4 completely covers the connecting portion 24 from above. In this embodiment, the insulating member 4 is in a sheet shape and is attached to the inner side of the top wall of the shielding shell 3.

In this embodiment, the electrical connector 100 further has a rear seat 5 fixed in the mounting space 130, and the rear seat 5 is provided with a first row of insertion holes 51 and a second row of insertion holes 52 spaced in the front-back direction for inserting the soldering portions 23 of the second group of conductive terminals 2b and the first group of conductive terminals 2 a.

In other embodiments of the present invention, the conductive terminals 2 may not have the second set of conductive terminals 2b, but only have the first set of conductive terminals 2 a.

The distance from the horizontal central plane C-C' of the tongue plate 12 of the electric connector 100 to the lower end surface of the mounting part 13 is less than the distance from the horizontal central plane to the bottom wall of the shielding shell, so as to reduce the occupied space of the external circuit board and facilitate the saving of the mounting space; and the width of the fixing part of at least one group of conductive terminals is greater than the width of the contact part and/or the welding part, so that the conductive terminals 2 can be stably combined with the insulating body 1, the conductive terminals 2 are prevented from withdrawing, and the structural stability of the electric connector 100 is enhanced.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An electric connector comprises an insulating body, at least one group of conductive terminals and a shielding shell covering the periphery of the insulating body, wherein the insulating body is provided with a base part, a tongue plate protruding out of the front side of the base part and an installation part positioned on the rear side of the base part, each conductive terminal is provided with a contact part protruding out of the surface of the tongue plate, a fixed part fixed in the insulating body and a welding part positioned at the rear end of the conductive terminal and electrically connected to an external circuit board, the shielding shell is provided with a containing space which is opened forwards, and the tongue plate protrudes out of the containing space, and the electric connector is characterized in that: the tongue plate is provided with a horizontal central plane with equal distance to the upper surface and the lower surface, the distance from the horizontal central plane to the lower end surface of the mounting part is smaller than the distance from the horizontal central plane to the bottom wall of the shielding shell, and the width of the fixing part of at least one group of conductive terminals is larger than the width of the contact part and/or the welding part of the conductive terminals.

2. The electrical connector of claim 1, wherein: the fixing part of at least one group of conductive terminals and the tongue plate are arranged at an angle, the insulating body is provided with a blocking surface which is positioned at the rear side of the tongue plate and faces the front side, and the fixing part is abutted against the front side of the blocking surface.

3. The electrical connector of claim 2, wherein: the base part is provided with a plurality of fixing grooves arranged along the transverse direction and a limiting wall positioned on the front side of the fixing grooves, the fixing grooves extend along the height direction, and the fixing parts are installed in the corresponding fixing grooves and fixed between the limiting wall and the blocking surface.

4. The electrical connector of claim 1, wherein: the shielding shell is provided with a fixing pin for clamping and fixing with an external circuit board.

5. The electrical connector of claim 4, wherein: the shielding shell is provided with a top wall, a bottom wall and a pair of side walls connecting the top wall and the bottom wall, at least one pair of fixing feet are formed by tearing the side walls or the bottom wall, and each fixing foot formed by tearing the side walls or the bottom wall is provided with a pair of positioning convex parts extending downwards and a concave part positioned between the pair of positioning convex parts.

6. The electrical connector of claim 5, wherein: in the front-back direction, the fixing feet formed by tearing the side wall or the bottom wall are positioned on the front side of the fixing part, and part of the fixing feet are positioned on the rear side of the fixing part.

7. The electrical connector of any one of claims 1 to 6, wherein: the conductive terminals comprise a first group of conductive terminals and a second group of conductive terminals, each of the first group of conductive terminals is provided with a first contact part which is exposed on the tongue plate and is bent, each of the second group of conductive terminals is provided with a second contact part which is exposed on the tongue plate and is straight, and the second contact part is positioned in front of the first contact part in the front-back direction.

8. The electrical connector of claim 7, wherein: each of the first group of conductive terminals further has a connecting portion connecting the top end of the fixing portion with the soldering portion, and the connecting portion extends in the front-rear direction.

9. The electrical connector of claim 8, wherein: an insulating piece is arranged on the inner side of the top wall of the shielding shell and completely covers the connecting part from the upper side.

10. The electrical connector of claim 7, wherein: each of the second set of conductive terminals has a connecting portion between the second contact portion and the fixing portion thereof, and the width of the connecting portion in the transverse direction is smaller than that of the fixing portion thereof.