CN219513459U

CN219513459U - Electric connector

Info

Publication number: CN219513459U
Application number: CN202320075778.3U
Authority: CN
Inventors: 万磊
Original assignee: Zhongshan Yide Electronics Co ltd
Current assignee: Zhongshan Yide Electronics Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-08-11
Anticipated expiration: 2033-01-09

Abstract

The utility model discloses an electric connector, which comprises an insulating colloid, a metal shell surrounding the insulating colloid, a plurality of conductive terminals fixed on the insulating colloid, and a metal shielding cover positioned behind the insulating colloid and the metal shell, wherein the conductive terminals comprise a guide part extending out of the insulating colloid, the metal shell comprises a top wall, a bottom wall and two side walls connecting the top wall and the bottom wall, a foolproof structure is arranged on the top wall, the metal shielding cover comprises a rear cover covering the rear end of the metal shell, an upper cover connected with the upper part of the rear cover, and two side covers connected with the two sides of the rear cover, the upper cover covers the top wall, the side covers cover the side walls, the upper cover and the side covers are connected with adapting pieces, and the adapting pieces are adapted to the foolproof structure. Therefore, the gap between the metal shielding cover and the metal shell can be reduced, and the effect of shielding high-frequency electromagnetic interference is improved.

Description

Electric connector

[ field of technology ]

The present utility model relates to an electrical connector, and more particularly, to an electrical connector with improved electromagnetic interference resistance.

[ background Art ]

In CN 208580906U published in 3 and 5 of 2019, an electrical connector is disclosed, where the electrical connector includes a main housing and an auxiliary housing wrapped at a rear end of the main housing, the main housing is formed by enclosing a top wall, a bottom wall and two side walls connecting the top wall and the bottom wall, and left and right side portions of the top wall are respectively bent downward and outward relative to a middle portion thereof to form a foolproof structure, so that the electrical connector can be correctly docked with a docking connector, the foolproof structure has a first bending surface and a second bending surface with one end connected with the side wall on the top wall, and the auxiliary housing forms electromagnetic shielding for a position of the rear end of the electrical connector not covered by the main housing. However, the auxiliary shell is not matched with the first bending surface and the second bending surface, and an excessive gap is formed between the auxiliary shell and the main shell at the fool-proof structure, so that high-frequency electromagnetic interference cannot be shielded.

Therefore, there is a need to design a new electrical connector to overcome the above-mentioned problems.

[ utility model ]

The utility model aims to provide an electric connector capable of improving electromagnetic interference performance.

In order to achieve the above purpose, the present utility model adopts the following technical means:

an electric connector is used for being connected to a circuit board and comprises an insulating colloid, a metal shell surrounding the insulating colloid, a plurality of conductive terminals fixedly held on the insulating colloid and a metal shielding cover positioned behind the insulating colloid and the metal shell; each conductive terminal comprises a conductive connection part which extends out of the insulating colloid and is used for being connected with a circuit board in a conductive way; the metal shell comprises a top wall, a bottom wall and two side walls connected with the top wall and the bottom wall, the top wall comprises a flat plate structure and at least one fool-proof structure, the fool-proof structure comprises a first bending part connected with the flat plate structure and a second bending part connected with one of the side walls, the first bending part enables the fool-proof structure to bend downwards relative to the flat plate structure and extend inwards relative to the corresponding side wall; the metal shielding cover comprises a rear cover covering the rear end of the metal shell, an upper cover is connected above the rear cover, the upper cover covers the outside of the top wall, the left side and the right side of the rear cover are respectively connected with a side cover, and the side covers cover the corresponding outside of the side walls; the upper cover is connected with at least one first adapting piece bent towards the fool-proof structure, the inner surface of the first adapting piece is matched with the outer surface of the first bending part, at least one side cover is connected with a second adapting piece bent towards the fool-proof structure, and the inner surface of the second adapting piece is matched with the outer surface of the second bending part.

Further, the first and second tabs are disconnected from the rear cover.

Further, the fool-proof structure further comprises a first flat plate part connected with the first bending part, a second flat plate part connected with the second bending part, and a third bending part connected with the first flat plate part and the second flat plate part; the first adapting piece comprises a first bending adapting piece connected with the upper cover and a first flat adapting piece connected with the first bending adapting piece, and the second adapting piece comprises a second bending adapting piece connected with the side cover and a second flat adapting piece connected with the second bending adapting piece; the inner surface of the first bending adapting piece is adapted to the outer surface of the first bending part, the first flat adapting piece covers the first flat part, the inner surface of the second bending adapting piece is adapted to the outer surface of the second bending part, and the second flat adapting piece covers the second flat part and the third bending part.

Further, a gap is formed between the first flat adapting piece and the second flat adapting piece.

Further, the guide connection portion is an SMT pin, the upper cover covers the flat plate structure, the side cover covers the side wall and extends downwards beyond the bottom wall, the side cover extends below the upper surface of the guide connection portion, and the side cover is arranged opposite to the guide connection portion in the left-right direction.

Further, the top wall or the side wall is provided with a fixing arm extending backwards from the rear end of the top wall or the side wall, and the inner surface of the rear cover and the fixing arm are mutually fitted and fixed.

Further, the fixing arm includes a fixing portion fixed to the rear cover and an extension portion extending from the rear end of the top wall or the rear end of the side wall and connecting the fixing portion, the fixing portion is bent with respect to the extension portion, and the upper cover or the side cover covers the extension portion.

Further, the conductive connection part is an SMT pin, and the bottom surface of the rear cover is below the upper surface of the conductive connection part to shield the conductive connection part.

Further, the bottom edge of the rear cover is provided with a plurality of welding spots positioned behind a plurality of the guide connection parts and used for being welded with the circuit board.

Further, the left and right sides of the flat plate structure are respectively connected with one foolproof structure, the left and right sides of the upper cover are respectively connected with the first adapting piece which is bent towards the foolproof structure at the corresponding side, and each side cover is connected with the second adapting piece which is bent towards the foolproof structure at the corresponding side.

An electric connector is used for being connected to a circuit board and comprises an insulating colloid, a metal shell surrounding the insulating colloid, a plurality of conductive terminals fixedly held on the insulating colloid and a metal shielding cover positioned behind the insulating colloid and the metal shell; each conductive terminal comprises a conductive connection part which extends out of the insulating colloid and is used for being connected with a circuit board in a conductive way; the metal shell comprises a top wall, a bottom wall and two side walls connected with the top wall and the bottom wall, the top wall comprises a flat plate structure and at least one fool-proof structure, the fool-proof structure comprises a first bending part connected with the flat plate structure and a second bending part connected with one of the side walls, the first bending part enables the fool-proof structure to bend downwards relative to the flat plate structure and extend inwards relative to the corresponding side wall; the metal shielding cover comprises a rear cover covering the rear end of the metal shell, an upper cover is connected above the rear cover, the upper cover covers the outside of the top wall, the left side and the right side of the rear cover are respectively connected with a side cover, and the side covers cover the corresponding outside of the side walls; at least one of the upper cover and the side cover is connected with an adapting piece which covers the fool-proof structure, and the inner surface of the adapting piece is adapted to the outer surface of the fool-proof structure.

Further, the left and right sides of the flat plate structure are respectively connected with one foolproof structure, the left and right sides of the upper cover are respectively connected with the adapting piece bent towards the foolproof structure at the corresponding side, or each side cover is connected with the adapting piece bent towards the foolproof structure at the corresponding side.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, as the upper cover is connected with at least one first adapting piece bent towards the fool-proof structure, the inner surface of the first adapting piece is adapted to the outer surface of the first bending part, and at least one side cover is connected with the second adapting piece bent towards the fool-proof structure, the inner surface of the second adapting piece is adapted to the outer surface of the second bending part, so that the gap between the metal shielding cover and the metal shell at the fool-proof structure is reduced, and high-frequency electromagnetic interference is effectively shielded.

[ description of the drawings ]

Fig. 1 is a perspective view of a first embodiment of an electrical connector and a circuit board of the present utility model;

FIG. 2 is an exploded view of the electrical connector of FIG. 1;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a perspective view of the metallic shielding cover of fig. 2 at another view angle;

fig. 6 is an exploded view of the electrical connector of fig. 1 from another perspective;

fig. 7 is a perspective view of a second embodiment of the electrical connector of the present utility model and a circuit board;

fig. 8 is a perspective view of another embodiment of a metallic shield cover in an electrical connector of the present utility model;

fig. 9 is a perspective view of yet another embodiment of a metallic shield cover in an electrical connector of the present utility model.

Reference numerals of the specific embodiments illustrate:

insulating colloid 1	Base 11	Tongue plate portion 12
			Conductive terminal 2	Contact portion 21	Guide connection 22
Metal casing 3	Top wall 31	Plate structure 31a
			Fool-proof structure 31b	First bending part 311	First plate portion 312
Second bending portion 313	Second flat plate portion 314	Third bending part 315
			Bottom wall 32	Side wall 33	First fixed arm 34a
Second fixed arm 34b	Fixed portion 341	Extension 342
			Metal shield cover 4	Rear cover 41	Solder joint 411
Upper cover 42	Side cover 43	First adapter piece 44
			First bending adapting piece 441	First plate adapter 442	Second adapter piece 45
Second bending adapting piece 451	Second plate fitting piece 452	Circuit board 5

[ detailed description ] of the utility model

For a better understanding of the objects, structures and features of the utility model, reference should be made to the drawings and to the detailed description which follow.

The electrical connector shown in fig. 1 to 6 is a first embodiment of the present utility model, and includes an insulating body 1, a plurality of conductive terminals 2 fixed on the insulating body 1, a metal housing 3 shielding the insulating body 1, and a metal shielding cover 4 covering the rear portion of the metal housing 3. The electric connector is used for being spliced with a butt connector to form electric connection.

As shown in fig. 2, the insulating gel 1 includes a base 11 and a tongue plate portion 12 formed by extending the base 11 forward.

As shown in fig. 4, the conductive terminals 2 are disposed on the insulating body 1 by an embedding molding process, and each conductive terminal 2 includes a contact portion 21 that is received in the tongue plate portion 12 and is exposed from the tongue plate portion 12 for electrically connecting with the mating connector, and a conductive portion 22 that extends from the base portion 11, wherein the conductive portion 22 is an SMT pin, i.e., the conductive portion 22 is soldered to the circuit board 5 by a surface mounting technology.

As shown in fig. 2, the metal housing 3 includes a top wall 31, a bottom wall 32, and two side walls 33 connecting the top wall 31 and the bottom wall 32, wherein the top wall 31, the bottom wall 32, and the two side walls 33 enclose an insertion opening (not shown) for receiving the mating connector (not shown). The top wall 31 includes a flat plate structure 31a and at least one fool-proof structure 31b, in this embodiment, two fool-proof structures 31b are provided, and two fool-proof structures 31b are respectively connected to the left and right sides of the flat plate structure 31a, and the fool-proof structures 31b extend from the front end of the metal casing 3 to the rear end of the metal casing 3. In other embodiments, only one fool-proof structure 31b may be provided.

As shown in fig. 2 and 5, the fool-proof structure 31b includes a first bending portion 311 connected to the plate structure 31a, a first plate portion 312 connected to the first bending portion 311, a second bending portion 313 connected to one of the side walls 33, a second plate portion 314 connected to the second bending portion 313, and a third bending portion 315 connected to the first plate portion 312 and the second plate portion 314, wherein the first bending portion 311 makes the fool-proof structure 31b bend downward relative to the plate structure 31a, the second bending portion 313 makes the fool-proof structure 31b bend inward relative to the corresponding side wall 33, and the first plate portion 312 and the second plate portion 314 are located on different planes, i.e., are disposed at different angles with respect to horizontal planes.

As shown in fig. 1 and 5, the metal shielding cover 4 includes a rear cover 41 covering the rear end of the metal housing 3 and shielding the conductive portion 22, an upper cover 42 is connected above the rear cover 41, and a side cover 43 is connected to each of the left and right sides of the rear cover 41. The upper cover 42 and the side cover 43 each have an adaptation piece adapted to the shape of the fool-proof structure 31b of the corresponding side.

As shown in fig. 1 and 5, in the present embodiment, a first adapting piece 44 is connected to each of the left and right sides of the upper cover 42, and the first adapting piece 44 includes a first bending adapting piece 441 connected to the upper cover 42 and a first flat adapting piece 442 connected to the first bending adapting piece 441.

As shown in fig. 1 and 5, in the present embodiment, a second adapting piece 45 is connected to each of the two side covers 43 at an end adjacent to the upper cover 42, and the second adapting piece 45 includes a second bending adapting piece 451 connected to the corresponding side cover 43 and a second flat adapting piece 452 connected to the second bending adapting piece 451. A gap is formed between the first adapting piece 44 and the second adapting piece 45, and the first adapting piece 44 and the second adapting piece 45 are disconnected from the rear cover 41, so that bending of the shapes of the first adapting piece 44 and the second adapting piece 45 is facilitated, and the shapes of the first adapting piece 44 and the second adapting piece 45 and the fool-proof structure 31b are adapted.

As shown in fig. 1, 3 and 5, the upper cover 42 is bent toward the side of the direction of the metal casing 3 at the connection with the rear cover 41 and covers the flat plate structure 31a, the side cover 43 is bent toward the side of the direction of the metal casing 3 at the connection with the rear cover 41 and covers the side wall 33 on the corresponding side, the side cover 43 is longer than the side wall 33 in the direction perpendicular to the circuit board 5, the side cover 43 extends downward beyond the bottom wall 32 and extends below the upper surface of the guide portion 22, and the side cover 43 is disposed opposite to the guide portion 22 in the left-right direction, so as to achieve a good side shielding effect.

As shown in fig. 1 and 3, the inner surface of the first bending adapting piece 441 is adapted to the outer surface of the first bending portion 311, the inner surface of the second bending adapting piece 451 is adapted to the outer surface of the second bending portion 313, and the first flat adapting piece 442 covers the first flat portion 312 of the fool-proof structure 31b, and the second flat adapting piece 452 covers the second flat portion 314 of the fool-proof structure 31b, so that the metal shielding cover 4 can be sufficiently close to the fool-proof structure 31b, and the gap of the metal shielding cover 4 at the fool-proof structure 31b is reduced.

As shown in fig. 4 and 6, the top wall 31 or the side wall 33 has a fixing arm extending rearward from a rear end thereof, the fixing arm including a fixing portion 341 fixed to the rear cover 41 and an extending portion 342 extending from a rear end of the top wall 31 or a rear end of the side wall 33 and connecting the fixing portion 341. In this embodiment, the top wall 31 and the side wall 33 each have the fixing arm extending rearward from the rear end thereof, the fixing arm defined to extend from the rear end of the top wall 31 is a first fixing arm 34a, the fixing portion 341 of the first fixing arm 34a is formed to bend downward from the rear end of the extending portion 342, the fixing arm defined to extend from the rear end of the side wall 33 is a second fixing arm 34b, the fixing portion 341 of the second fixing arm 34b is formed to bend toward the opposite side wall 33 at the rear end of the extending portion 342, the fixing arm is in an "L" shape, the upper cover 42 covers the extending portion 342 of the first fixing arm 34a, the side cover 43 covers the extending portion 342 of the second fixing arm 34b, the inner surface of the rear cover 41 and the fixing portion 341 are adhered to each other, and the rear cover 41 and the fixing portion 341 are spot-welded and fixed by laser.

As shown in fig. 4, the metal shielding cover 4 shields the conductive connection portion 22, and the bottom edge of the rear cover 41 is below the upper surface of the conductive connection portion 22, that is, the gap between the bottom edge of the rear cover 41 and the circuit board 5 is smaller than the height of the conductive connection portion 22.

The electrical connector shown in fig. 7 is a second embodiment of the present utility model, and only the metal shielding cover 4 of the electrical connector of the second embodiment is different from the first embodiment, and other parts of the electrical connector have the same structure as the first embodiment, and detailed description of the first embodiment will be referred to and omitted. In this embodiment, the bottom edge of the rear cover 41 has a plurality of welding spots 411, a plurality of welding spots 411 are welded to the circuit board 5, and the rear cover 41 has a better shielding effect when welded to the circuit board 5 by a plurality of welding spots 411.

Fig. 8 shows another embodiment of the metal shielding cover 4 in the electrical connector of the present utility model, only the adapting piece is different from the first embodiment, and other parts are described in detail in the first embodiment. In this embodiment, only the upper cover 42 is connected with an adapting piece, which is defined as the first adapting piece 44, the shape of the inner surface of the first adapting piece 44 and the shape of the outer surface of the fool-proof structure (not shown) are adapted to the shape of the first adapting piece 44 and the fool-proof structure are adapted to each other, so that a gap between the metal shielding cover 4 and the metal housing (not shown) is reduced, and high-frequency electromagnetic interference is more effectively shielded.

Fig. 9 shows a further embodiment of a metal shielding cover 4 in an electrical connector according to the present utility model, only the adapter piece is different from the first embodiment, and the other parts are described in detail in the first embodiment. In this embodiment, only the side cover 43 is connected with an adapting piece, which is defined as a second adapting piece 45, and the shape of the second adapting piece 45 is adapted to the fool-proof structure (not labeled in the drawing), so that the gap between the metal shielding cover 4 and the metal housing (not labeled in the drawing) is reduced, and the high-frequency electromagnetic interference is more effectively shielded.

The electric connector has the following beneficial effects:

1) The upper cover 42 or the side cover 43 of the metal shielding cover 4 is provided with an adapting piece, the adapting piece covers the fool-proof structure 31b of the metal casing 3, the adapting piece comprises a bending adapting piece and a flat adapting piece, and the shape of the inner surface of the bending adapting piece is adapted to the outer surface of the bending part of the fool-proof structure 31b, so that the metal shielding cover 4 is sufficiently close to the fool-proof structure 31b, a gap between the metal shielding cover 4 and the metal casing 3 is reduced, and high-frequency electromagnetic interference is shielded more effectively.

2) The first fitting piece 44 and the second fitting piece 45 are disconnected from the rear cover 41, which facilitates the bending of the shapes of the first fitting piece 44 and the second fitting piece 45, so that the shapes of the first fitting piece 44 and the second fitting piece 45 are matched with the shapes of the fool-proof structures 31 b. A gap is formed between the first adapting piece 44 and the second adapting piece 45, so as to avoid interference between the first adapting piece and the second adapting piece.

3) The side cover 43 is bent toward the side of the direction of the metal housing 3 at the connection with the rear cover 41 and covers the side wall 33 on the corresponding side, the side cover 43 is longer than the side wall 33 in the direction perpendicular to the circuit board 5, the side cover 43 extends downward below the upper surface of the guide connection portion 22, and the side cover 43 is disposed opposite to the guide connection portion 22 in the left-right direction, so as to achieve a good side shielding effect.

4) The bottom edge of the rear cover 41 is provided with a plurality of welding spots 411, a plurality of welding spots 411 are welded with the circuit board 5, and the rear cover 41 has better shielding effect by welding the plurality of welding spots 411 with the circuit board 5.

The above detailed description is merely illustrative of the preferred embodiments of the utility model and is not intended to limit the scope of the utility model, so that all equivalent technical changes that can be made by the present specification and illustrations are included in the scope of the utility model.

Claims

1. An electric connector is used for being connected to a circuit board and comprises an insulating colloid, a metal shell surrounding the insulating colloid, a plurality of conductive terminals fixedly held on the insulating colloid and a metal shielding cover positioned behind the insulating colloid and the metal shell;

each conductive terminal comprises a conductive connection part which extends out of the insulating colloid and is used for being connected with a circuit board in a conductive way;

the metal shell comprises a top wall, a bottom wall and two side walls connected with the top wall and the bottom wall, the top wall comprises a flat plate structure and at least one fool-proof structure, the fool-proof structure comprises a first bending part connected with the flat plate structure and a second bending part connected with one of the side walls, the first bending part enables the fool-proof structure to bend downwards relative to the flat plate structure and extend inwards relative to the corresponding side wall;

the metal shielding cover comprises a rear cover covering the rear end of the metal shell, an upper cover is connected above the rear cover, the upper cover covers the outside of the top wall, the left side and the right side of the rear cover are respectively connected with a side cover, and the side covers cover the corresponding outside of the side walls;

the method is characterized in that: the upper cover is connected with at least one first adapting piece bent towards the fool-proof structure, the inner surface of the first adapting piece is matched with the outer surface of the first bending part, at least one side cover is connected with a second adapting piece bent towards the fool-proof structure, and the inner surface of the second adapting piece is matched with the outer surface of the second bending part.

2. The electrical connector of claim 1, wherein: the first and second tabs are disconnected from the rear cover.

3. The electrical connector of claim 1, wherein: the fool-proof structure also comprises a first flat plate part connected with the first bending part, a second flat plate part connected with the second bending part and a third bending part connected with the first flat plate part and the second flat plate part; the first adapting piece comprises a first bending adapting piece connected with the upper cover and a first flat adapting piece connected with the first bending adapting piece, and the second adapting piece comprises a second bending adapting piece connected with the side cover and a second flat adapting piece connected with the second bending adapting piece; the inner surface of the first bending adapting piece is adapted to the outer surface of the first bending part, the first flat adapting piece covers the first flat part, the inner surface of the second bending adapting piece is adapted to the outer surface of the second bending part, and the second flat adapting piece covers the second flat part and the third bending part.

4. An electrical connector as in claim 3 wherein: a gap is arranged between the first flat adapting piece and the second flat adapting piece.

5. The electrical connector of claim 1, wherein: the guide connection part is an SMT pin, the upper cover covers the flat plate structure, the side cover covers the side wall and extends downwards beyond the bottom wall, the side cover extends below the upper surface of the guide connection part, and the side cover is arranged opposite to the guide connection part in the left-right direction.

6. The electrical connector of claim 1, wherein: the top wall or the side wall is provided with a fixing arm extending backwards from the rear end of the top wall or the side wall, and the inner surface of the rear cover and the fixing arm are mutually attached and fixed.

7. The electrical connector of claim 6, wherein: the fixing arm comprises a fixing part and an extending part, wherein the fixing part is mutually fixed with the rear cover, the extending part extends from the rear end of the top wall or the rear end of the side wall and is connected with the fixing part, the fixing part is bent relative to the extending part, and the upper cover or the side cover covers the extending part.

8. The electrical connector of claim 1, wherein: the guide connection part is an SMT pin, and the bottom surface of the rear cover is below the upper surface of the guide connection part to shield the guide connection part.

9. The electrical connector of claim 8, wherein: the bottom edge of the rear cover is provided with a plurality of welding spots positioned behind the guide connection parts and used for being welded with the circuit board.

10. The electrical connector of claim 1, wherein: the left side and the right side of the flat plate structure are respectively connected with one foolproof structure, the left side and the right side of the upper cover are respectively connected with the first adapting piece which is bent towards the foolproof structure at the corresponding side, and each side cover is connected with the second adapting piece which is bent towards the foolproof structure at the corresponding side.

11. An electric connector is used for being connected to a circuit board and comprises an insulating colloid, a metal shell surrounding the insulating colloid, a plurality of conductive terminals fixedly held on the insulating colloid and a metal shielding cover positioned behind the insulating colloid and the metal shell;

the method is characterized in that: at least one of the upper cover and the side cover is connected with an adapting piece which covers the fool-proof structure, and the inner surface of the adapting piece is adapted to the outer surface of the fool-proof structure.

12. The electrical connector of claim 11, wherein: the left side and the right side of the flat plate structure are respectively connected with one foolproof structure, the left side and the right side of the upper cover are respectively connected with the adapting piece which is bent towards the foolproof structure at the corresponding side, or each side cover is connected with the adapting piece which is bent towards the foolproof structure at the corresponding side.