CN218586391U

CN218586391U - Electrical connector

Info

Publication number: CN218586391U
Application number: CN202223150172.6U
Authority: CN
Inventors: 包中南; 苏福; 平红阳; 施剑敏
Original assignee: Qinghong Electronics Suzhou Co ltd
Current assignee: Qinghong Electronics Suzhou Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-03-07
Anticipated expiration: 2032-11-25

Abstract

The application discloses electric connector includes: the metal shell is provided with a bottom surface, and a plurality of accommodating notches are formed in the bottom surface; a transmission assembly disposed inside the metal housing and including a plurality of signal terminal pairs disposed in the respective receiving slots; and a metal shielding plate connected to the bottom surface of the metal housing, and having a plurality of openings aligned with the plurality of receiving notches formed therein, the plurality of signal terminal pairs being exposed from the corresponding openings, and the plurality of signal terminal pairs abutting against the top surface of the PCB in a state where the electrical connector is electrically connected to the PCB, wherein at least one metal spring piece integrated with the metal shielding plate and protruding away from the metal housing is formed in the metal shielding plate, so that the metal spring piece abuts against the top surface of the PCB in a state where the electrical connector is electrically connected to the PCB. Through the arrangement mode, the metal shell and the PCB can be effectively connected in series, and therefore the transmission performance is improved.

Description

Electrical connector

Technical Field

The present application relates generally to the field of electrical equipment, and in particular to an electrical connector, and in particular a drop board connector.

Background

The existing electrical connector directly electrically connects with the top surface of a PCB (printed circuit board) using the bottom surface of the metal housing, whereby the string ground stability of the electrical connector with the PCB depends on the flatness of the bottom surface of the metal housing and the flatness of the PCB, resulting in the need for an extremely high manufacturing process to achieve good transmission performance.

SUMMERY OF THE UTILITY MODEL

To overcome the above-mentioned drawbacks in the prior art, the present application provides an electrical connector configured to be electrically connected with a PCB, the electrical connector comprising: a metal housing having a bottom surface with a plurality of receiving slots opened therein for communication with an external environment; a transmission assembly disposed inside the metal housing and including a plurality of signal terminal pairs and a plurality of cables connected with the signal terminal pairs, each of the signal terminal pairs being disposed in a corresponding one of the receiving slots; and a metal shielding plate, connected to the bottom surface of the metal housing, and having a plurality of openings aligned with the plurality of receiving slots formed therein, each of the plurality of signal terminal pairs being exposed from the corresponding opening, and each of the plurality of signal terminal pairs being abutted to a signal pad disposed on the top surface of the PCB in a state where the electrical connector is electrically connected to the PCB, wherein at least one metal spring piece integrated with the metal shielding plate and protruding away from the metal housing is formed in the metal shielding plate, so that the metal spring piece is abutted to a conductive pad disposed on the top surface of the PCB in a state where the electrical connector is electrically connected to the PCB.

Further, the metal dome is disposed at a periphery of the opening of the metal shielding plate.

Further, the metallic shielding plate includes a plurality of lateral ribs extending in a lateral direction and a plurality of longitudinal ribs extending in a longitudinal direction perpendicular to the lateral direction to form a plurality of the openings arranged in a grid shape.

Further, the metal shrapnel is arranged on the transverse rib and/or the longitudinal rib.

Further, the metal dome on the transverse rib extends in the transverse direction, and the metal dome on the longitudinal rib extends in the longitudinal direction.

Further, a group of metal elastic sheets extending along the longitudinal direction is arranged on any one longitudinal rib, the group of metal elastic sheets on the same longitudinal rib are spaced from each other in the longitudinal direction, and two adjacent metal elastic sheets in the group of metal elastic sheets on the same longitudinal rib are arranged in a staggered manner in the transverse direction, so that a part of the metal elastic sheets in the group of metal elastic sheets are aligned with each other in the longitudinal direction and the rest of the metal elastic sheets in the group of metal elastic sheets are aligned with each other in the longitudinal direction.

Further, a set of metal elastic sheets extending along the transverse direction is arranged on any one transverse rib, the set of metal elastic sheets on the same transverse rib are spaced from each other in the transverse direction, and two adjacent metal elastic sheets in the set of metal elastic sheets on the same transverse rib are arranged in a staggered manner in the longitudinal direction, so that a part of the metal elastic sheets in the set of metal elastic sheets are aligned with each other in the transverse direction and the rest of the metal elastic sheets in the set of metal elastic sheets are aligned with each other in the transverse direction.

Further, the metal case is a structure made by metal molding or powder metallurgy.

Further, the metal shielding sheet is a structure made by stamping.

Further, the metal shielding plate and the metal case are fixed to each other by laser welding.

Through the arrangement mode, the metal shell and the PCB can be effectively connected in series, and therefore the transmission performance is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a perspective view showing an electrical connector according to the present application, wherein the electrical connector is in a connected state with a PCB;

fig. 2 is an exploded view showing an electrical connector according to the present application;

fig. 3 is a perspective view showing an electrical connector according to the present application from another perspective;

fig. 4 is a perspective view showing a metal housing of an electrical connector according to the present application;

fig. 5 is a perspective view showing a metal shield plate of an electrical connector according to the present application; and

fig. 6 is an enlarged view showing a region a of the electrical connector according to the present application shown in fig. 3.

List of reference numerals

100. Electrical connector

1. Metal shell

1a bottom surface

1b top surface

11. Accommodating notch

12. Guide post

2. Transmission assembly

21. Signal terminal pair

22. Cable with a flexible connection

3. Metal shielding sheet

3X transverse Ribs

3Y longitudinal Ribs

31. Opening of the container

32. Metal spring sheet

321. Abutting part

33. Guide hole

4. Insulating member

41. Accommodating groove

200 PCB

200a top surface

201. Mounting hole

In the X transverse direction

Y longitudinal direction

Detailed Description

The following describes technical solutions in the embodiments of the present application in detail with reference to the drawings in the embodiments of the present application. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

As shown in fig. 1, the present application discloses an electrical connector 100 configured for electrical connection with a PCB 200. As shown in fig. 2 and 3 in conjunction, the electrical connector 100 may generally include a metal housing 1, a transmission assembly 2, and a metal shield plate 3.

As shown in conjunction with fig. 2 and 4, the metal case 1 may have a bottom surface 1a, a top surface 1b opposite to the bottom surface 1a, and a plurality of side surfaces connecting the bottom surface 1a and the top surface 1 b. A plurality of receiving slots 11 communicating with the external environment are opened in the bottom surface 1a for receiving the signal terminal pairs 21 of the transmission assembly 2, as will be described in further detail below.

As shown in fig. 2 and 3, the transmission assembly 2 may be disposed inside the metal housing 1. The transmission assembly 2 may include a plurality of signal terminal pairs 21 and a plurality of cables 22 connected to the plurality of signal terminal pairs 21, each of the plurality of signal terminal pairs 21 being disposed in a corresponding one of the receiving slots 11 (in other words, the signal terminal pairs 21 and the receiving slots 11 are arranged in a one-to-one correspondence), such that in a state in which the electrical connector 100 is electrically connected to the PCB200, the signal terminal pairs 21 are abutted to the top surface 200a of the PCB200 (in particular, signal pads disposed on the top surface 200a of the PCB 200) and the bottom surface 1a of the metal housing 1 is abutted to the top surface 200a of the PCB200 (in particular, conductive pads disposed on the top surface 200a of the PCB 200). It is to be noted that, in any case, the signal terminal pair 21 is not in contact with the metal shell 1, but is at least partially surrounded by the metal shell 1 with an empty space therebetween, that is, there is a gap (i.e., empty space) between the receiving slot 11 of the metal shell 1 and the corresponding signal terminal pair 21 received therein, thereby providing good shielding for the signal terminal pair 21.

Further, as best shown in fig. 6, an insulating member 4 may be provided in an empty space between the metal housing 1 and the pair of signal terminals 21 in each receiving slot 11 to protect the pair of signal terminals 21, thereby further preventing the pair of signal terminals 21 from contacting the metal housing 1 in any case. For example, in a state where the electrical connector 100 and the PCB200 are connected together, even if the pair of signal terminals 21 are largely deformed when abutting against the signal pads provided on the top surface 200a of the PCB200, the pair of signal terminals 21 are protected by the insulating member 4. Preferably, receiving grooves 41 for receiving both signal terminals of the signal terminal pair 21 may be provided in the insulating member 4.

As shown in conjunction with fig. 3 and 5, the metallic shield plate 3 is connected to (particularly, fixed to) the bottom surface 1a of the metallic shell 1. A plurality of openings 31 aligned with the plurality of receiving notches 11 are formed in the metal shielding plate 3, each of the plurality of signal terminal pairs 21 protrudes toward a direction away from the metal shielding plate 3 or is exposed from the corresponding opening 31, and in a state where the electrical connector 100 is electrically connected to the PCB200, each of the plurality of signal terminal pairs 21 is abutted to the top surface 200a of the PCB200, in particular, a signal pad provided on the top surface 200a of the PCB200, through the corresponding opening 31. It is to be noted that, in any case, the signal terminal pair 21 is not in contact with the metallic shielding plate 3, but is at least partially surrounded by the metallic shielding plate 3 with an empty space therebetween, that is, a gap (i.e., an empty space) exists between the opening 31 of the metallic shielding plate 3 and the corresponding signal terminal pair 21 surrounded thereby, thereby further providing good shielding for the signal terminal pair 21.

As shown in fig. 3 and 5, at least one metal spring piece 32 integrated with the metal shielding plate 3 and protruding away from the metal housing 1 may be formed in the metal shielding plate 3, so that in a state where the electrical connector 100 is electrically connected to the PCB200, the metal spring piece 32 abuts against a conductive pad disposed on the top surface 200a of the PCB 200. Therefore, the metal shielding sheet 3 with the metal elastic sheet 32 arranged between the metal shell 1 and the PCB200 can realize effective ground connection between the metal shell 1 and the PCB200, thereby improving transmission performance.

In particular, the metal dome 32 has a substantially elongated shape, extends generally parallel to the metal shielding plate 3 (for example, along the transverse direction X or the longitudinal direction Y), and protrudes at least partially away from the metal housing 1 (along a direction perpendicular to the metal shielding plate 3 or at an angle with respect to the metal shielding plate 3), for example with a bent abutment 321 protruding away from the metal housing 1. In a state where the electrical connector 100 is electrically connected to the PCB200, the abutting portion of the metal dome 32 abuts against the conductive pad disposed on the top surface 200a of the PCB200, and the metal dome 32 is deformed to some extent and generates a pressing force during the deformation to ensure stable contact.

As best shown in fig. 5 or 6, the metal dome 32 may be disposed at the periphery of the opening 31 of the metal shielding plate 3. Metal elastic pieces 32 may be provided on any side of the perimeter of the opening 31 of the metal shielding plate 3, and as shown in fig. 6, three metal elastic pieces 32 are provided on two long sides of the opening illustrated as a rectangle, and one metal elastic piece 32 is provided on one short side thereof, which is only exemplary, and metal elastic pieces 32 with equal or unequal number may be provided on four sides of the opening 31, and the number and size of the metal elastic pieces 32 are not particularly limited and may be selected according to actual needs. Further, when the opening 31 surrounds the corresponding signal terminal pair 21, the metal dome 32 on at least three sides thereof surrounds at least three sides of the corresponding signal terminal pair 21, thereby providing a good shielding effect.

As best shown in fig. 5, the metallic shielding sheet 3 may include a plurality of transverse ribs 3X extending in a transverse direction X and a plurality of longitudinal ribs 3Y extending in a longitudinal direction Y perpendicular to the transverse direction X to form a plurality of openings 31 arranged in a grid-like manner. The plurality of openings 31 shown in fig. 5 has a grid form with two rows and twelve columns of openings formed by three transverse ribs 3X and thirteen longitudinal ribs 3Y, but this is merely exemplary, and the specific number and arrangement of the openings 31 may be selected according to actual needs.

As best shown in fig. 5, the metal dome 32 may be disposed on the transverse rib 3X and/or the longitudinal rib 3Y. Preferably, metal domes 32 are provided on all longitudinal ribs 3Y. Further, since the first and last longitudinal ribs and the first and last transverse ribs are configured as the periphery of the entire metal shielding plate 3, they are made wider than the remaining longitudinal ribs and transverse ribs to ensure the stability of the entire structure.

As shown in connection with fig. 2 to 5, guide holes 33 may be provided at the first and last longitudinal ribs of the metallic shield plate 3, and corresponding guide posts 12 protruding outward from the bottom surface 1a are provided on the bottom surface 1a of the metallic housing 1. In a state where the electrical connector 100 is coupled with the PCB200, the guide posts 12 pass through the corresponding guide holes 33 and are inserted into the mounting holes 201 provided on the PCB200, thereby achieving accurate positioning of the electrical connector 100 on the PCB.

As best shown in fig. 5 or 6, the metal dome 32 on the transverse rib 3X may extend in the transverse direction X, and the metal dome 32 on the longitudinal rib 3Y may extend in the longitudinal direction Y. In this way, the metal dome 32 can be lengthened, thereby providing a better shielding effect.

Further, a set of metal elastic pieces 32 extending along the longitudinal direction Y may be disposed on any one of the longitudinal ribs 3Y, each set of metal elastic pieces has a plurality of metal elastic pieces 32, a set of metal elastic pieces 32 located on the same longitudinal rib 3Y are arranged on the same straight line along the longitudinal direction Y and are spaced apart from each other, a set of metal elastic pieces 32 extending along the transverse direction X may be disposed on any one of the transverse ribs 3X, each set of metal elastic pieces has a plurality of metal elastic pieces 32, and a set of metal elastic pieces 32 located on the same transverse rib 3X are arranged on the same straight line along the transverse direction X and are spaced apart from each other.

As best shown in fig. 5 or 6, a set of metal elastic sheets 32 extending along the longitudinal direction Y may be provided on any one of the longitudinal ribs 3Y, the set of metal elastic sheets 32 on the same longitudinal rib 3Y are spaced apart from each other in the longitudinal direction Y, and two adjacent metal elastic sheets 32 in the set of metal elastic sheets 32 on the same longitudinal rib 3Y are arranged in a staggered manner in the transverse direction X, such that a part of the metal elastic sheets 32 in the set of metal elastic sheets 32 are aligned with each other in the longitudinal direction Y and the rest of the metal elastic sheets 32 in the set of metal elastic sheets 32 are aligned with each other in the longitudinal direction Y. With this arrangement, the longitudinal rib 3Y can be made relatively narrow, thereby making effective use of space.

As best shown in fig. 5 or 6, a set of metal domes 32 extending in the transverse direction X may be provided on any one of the transverse ribs 3X. In an embodiment not shown, a set of metal domes 32 on the same transverse rib 3X may also be spaced apart from each other in the transverse direction X, and two adjacent metal domes 32 of the set of metal domes 32 on the same transverse rib 3X are arranged offset in the longitudinal direction Y, such that a part of the metal domes 32 of the set of metal domes 32 are aligned with each other in the transverse direction X and the remaining metal domes 32 of the set of metal domes 32 are aligned with each other in the transverse direction X. With this arrangement, the lateral ribs 3X can be made relatively narrow, thereby effectively utilizing space.

Preferably, the metal shell 1 may be manufactured by metal molding or powder metallurgy, in other words, the metal shell 1 may be a structure manufactured by metal molding or powder metallurgy, of course, the manufacturing manner of the metal shell 1 is not limited thereto and may be performed in other manners known in the art. Preferably, the metallic shielding plate 3 may be manufactured by stamping, in other words, the metallic shielding plate 3 may be a structure manufactured by stamping, of course, the manufacturing manner of the metallic shielding plate 3 is not limited thereto and may be performed in other manners known in the art. Preferably, the metallic shielding plate 3 and the metallic housing 1 may be fixed to each other by laser welding, of course, the manner of connecting the metallic shielding plate 3 and the metallic housing 1 is not limited thereto and may be performed in other manners known in the art.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electrical connector (100) configured for electrical connection with a PCB (200), the electrical connector (100) comprising:

a metal casing (1), said metal casing (1) having a bottom surface (1 a) and in said bottom surface (1 a) a plurality of housing notches (11) open communicating with the external environment;

a transmission assembly (2), the transmission assembly (2) being disposed inside the metal housing (1) and including a plurality of signal terminal pairs (21) and a plurality of cables (22) connected to the plurality of signal terminal pairs (21), each of the plurality of signal terminal pairs (21) being disposed in a corresponding one of the receiving slots (11); and

a metal shielding plate (3), wherein the metal shielding plate (3) is connected to the bottom surface (1 a) of the metal housing (1), a plurality of openings (31) aligned with the plurality of receiving slots (11) are formed in the metal shielding plate (3), each of the plurality of signal terminal pairs (21) is exposed from the corresponding opening (31), and each of the plurality of signal terminal pairs (21) is abutted to a signal pad disposed on the top surface (200 a) of the PCB (200) in a state where the electrical connector (100) is electrically connected to the PCB (200), wherein at least one metal elastic piece (32) integrated with the metal shielding plate (3) and protruding away from the metal housing (1) is formed in the metal shielding plate (3), so that the metal elastic piece (32) is abutted to a conductive pad disposed on the top surface (200 a) of the PCB (200) in a state where the electrical connector (100) is electrically connected to the PCB (200).

2. Electrical connector according to claim 1, characterized in that the metal dome (32) is arranged at the perimeter of the opening (31) of the metal shielding plate (3).

3. Electrical connector according to claim 1 or 2, characterized in that the metallic shielding sheet (3) comprises a plurality of transverse ribs (3X) extending in a transverse direction (X) and a plurality of longitudinal ribs (3Y) extending in a longitudinal direction (Y) perpendicular to the transverse direction (X) to form a plurality of said openings (31) arranged in a grid-like manner.

4. Electrical connector according to claim 3, characterized in that the metal dome (32) is arranged on the transverse rib (3X) and/or the longitudinal rib (3Y).

5. Electrical connector according to claim 4, characterized in that the metal dome (32) on the transverse rib (3X) extends in the transverse direction (X) and the metal dome (32) on the longitudinal rib (3Y) extends in the longitudinal direction (Y).

6. An electrical connector according to claim 3, wherein a set of metal domes (32) extending in the longitudinal direction (Y) is provided on any one of the longitudinal ribs (3Y), the set of metal domes (32) on the same longitudinal rib (3Y) being spaced apart from each other in the longitudinal direction (Y), and two adjacent metal domes (32) of the set of metal domes (32) on the same longitudinal rib (3Y) being arranged offset in the transverse direction (X) such that a part of the set of metal domes (32) are aligned with each other in the longitudinal direction (Y) and the remaining metal domes (32) of the set of metal domes (32) are aligned with each other in the longitudinal direction (Y).

7. The electrical connector according to claim 3, wherein a set of metal domes (32) extending along the transverse direction (X) is provided on any one of the transverse ribs (3X), the set of metal domes (32) on the same transverse rib (3X) are spaced apart from each other in the transverse direction (X), and two adjacent metal domes (32) of the set of metal domes (32) on the same transverse rib (3X) are arranged offset in the longitudinal direction (Y) such that a portion of the set of metal domes (32) are aligned with each other in the transverse direction (X) and the remaining metal domes (32) of the set of metal domes (32) are aligned with each other in the transverse direction (X).

8. Electrical connector according to claim 1, characterized in that the metal housing (1) is a structure made by metal moulding or powder metallurgy.

9. Electrical connector according to claim 1, characterized in that the metallic shielding plate (3) is a structure made by stamping.

10. Electrical connector according to claim 1, characterized in that the metallic shielding plate (3) and the metallic housing (1) are fixed to each other by laser welding.