CN117855969B

CN117855969B - Pogpin electric connector

Info

Publication number: CN117855969B
Application number: CN202410258200.0A
Authority: CN
Inventors: 鲁红兵; 邹安超; 邵海瑞; 郭美辰; 林海毅; 沙奔
Original assignee: Suzhou Huayang Aerospace Electric Co Ltd
Current assignee: Suzhou Huayang Aerospace Electric Co Ltd
Priority date: 2024-03-07
Filing date: 2024-03-07
Publication date: 2024-05-28
Anticipated expiration: 2044-03-07
Also published as: CN117855969A

Abstract

The invention provides a pogpin electric connector, which comprises a PCB board and a plurality of contact pieces electrically connected to the PCB board, wherein the contact pieces comprise a first contact piece used for transmitting signals and a second contact piece used for transmitting signal reflux; the plurality of first contacts are respectively surrounded and covered by a metal shielding cover. According to the pogpin electric connector, the metal shielding cover is arranged outside each pogpin for transmitting signals and used for shielding external signals, so that the transmission signals among the pogpins cannot interfere with each other, the signal transmission quality of the connector is improved, disturbance and resonance among contact pieces are reduced, and the signal transmission of the electric connector is more stable.

Description

Pogpin electric connector

Technical Field

The invention relates to the field of electric connectors, in particular to a pogpin electric connector.

Background

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

In the prior art, the pogpin electric connector is generally provided with a plurality of pogpins for transmitting signals, and the pogpin is named as spring pins, so that the pogpin electric connector is widely applied to various electronic products and plays a role in signal transmission connection. The pogpin electric connector can be welded a plurality of pogpins on the PCB board, the pogpins can be arranged along a straight line on the PCB board, the existing pogpins are not provided with shielding layers generally, so that signals transmitted between every two pogpins can mutually interfere, and the stability of signal transmission is poor.

It should be noted that the foregoing description of the background art is only for the purpose of providing a clear and complete description of the technical solution of the present invention and is presented for the convenience of understanding by those skilled in the art. The above-described solutions are not considered to be known to the person skilled in the art simply because they are set forth in the background of the invention section.

Disclosure of Invention

The invention aims to provide a signal transmission stable pogpin electric connector.

In order to solve the technical problems, the application provides a pogpin electric connector, which comprises a PCB board and a plurality of contact pieces electrically connected to the PCB board, wherein the contact pieces comprise first contact pieces used for transmitting signals, the PCB board is also connected with a plurality of cables respectively electrically connected with the first contact pieces, the cable (5) comprises an electric conductor, an inner insulating layer coated outside the electric conductor, a metal braiding layer coated outside the inner insulating layer and an outer insulating layer coated outside the metal braiding layer, the connecting end of the metal braiding layer extends forwards relative to the outer insulating layer, the connecting end of the electric conductor extends forwards relative to the metal braiding layer, and a plurality of metal shielding covers are further arranged on the PCB board and respectively cover the first contact pieces in a surrounding manner, and the connecting end of the electric conductor of the cable corresponding to the first contact pieces is completely covered and the connecting end of the metal braiding layer is at least partially covered.

Preferably, the metal shielding cover is of an arch structure with a downward opening, and the lower edge of the metal shielding cover is welded on the PCB.

Preferably, the plurality of contacts further comprises a second contact element for grounding, the first contact element and the second contact element are identical in structure and are installed on the PCB in the same mode, and the first contact element and the second contact element are arranged on the PCB at intervals along the left-right direction.

Preferably, the PCB board is provided with a plurality of first pads for soldering the first contact, a plurality of second pads for soldering the second contact, and a plurality of third pads for soldering the electrical conductor of the cable, the first pads are electrically connected with the third pads, and the second pads are grounded.

Preferably, the first bonding pads and the second bonding pads are bonding pads with the same size and structure, and are arranged at equal intervals along the left-right direction on the PCB.

Preferably, the first bonding pads are in one-to-one correspondence with the third bonding pads, the first bonding pads are located at the front side of the third bonding pads, the cable is located at the rear side of the first contact piece, the metal shielding cover is arranged along the front-rear direction, and the metal shielding cover extends backwards to at least partially cover the connecting ends of the metal braiding layers of the corresponding cables.

Preferably, the PCB part between the two contact pieces is further provided with a plurality of insertion holes arranged along the front-rear direction, the lower edge of the metal shielding case is provided with a plurality of insertion parts, the insertion parts are respectively inserted into the insertion holes, and the metal shielding case is connected with the ground wire in the PCB through the insertion holes.

Preferably, the PCB board is further provided with a metal grounding strip, the connection ends of the metal braid layers of the plurality of cables are electrically connected with the metal grounding strip, and the metal grounding strip is electrically connected with the ground wire of the PCB board.

Preferably, the contact is a spring needle contact and comprises a needle tube, a spring accommodated in the needle tube and a needle shaft capable of axially sliding in the needle tube, the tail of the needle shaft is abutted on the spring, the front end of the needle shaft extends out of the needle tube, and the front end of the needle shaft of the first contact extends forward relative to the metal shielding cover.

Preferably, the tip ends of the needle shafts of the plurality of contacts are located on the same plane.

By the technical scheme, the invention has the following beneficial effects:

According to the pogpin electric connector, the metal shielding cover is arranged outside each pogpin for transmitting signals and used for shielding external signals, so that the transmission signals among the pogpins cannot interfere with each other, the signal transmission quality of the electric connector is improved, disturbance and resonance among the pogpins are reduced, and the signal transmission of the electric connector is more stable. In addition, the first contact piece for transmitting signals and the second contact piece for grounding are the same type of contact pieces, the first bonding pad and the second bonding pad are also bonding pads with the same shape and size, and the first contact piece and the second contact piece are respectively connected with the first bonding pad and the second bonding pad in the same way, so that the increase of processing procedures caused by the use of the contact pieces and the bonding pads with different structures is avoided, the processing difficulty is reduced, and the production cost is saved.

Drawings

Fig. 1 is a schematic structural view of the pogpin electrical connector of the present application.

Fig. 2 is a schematic diagram of an exploded structure of the pogpin electrical connector of the present application.

Fig. 3 is a partial enlarged view of a in fig. 2.

Fig. 4 is an exploded construction diagram of the pogpin of the present application.

Fig. 5 is a schematic structural view of the pogpin electrical connector without the shield cover of the present application.

Wherein: 1. a first contact; 2. a second contact; 3. a PCB board; 4. a metal shield; 5. a cable; 311. a first bonding pad; 312. a second bonding pad; 32. a third bonding pad; 33. a metal grounding bar; 34. a jack; 41. an insertion section; 51. an electrical conductor; 52. an inner insulating layer; 53. a metal braid; 54. an outer insulating layer; 11. a needle shaft; 12. a spring; 13. needle tube.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, in the description of the present invention, the terms "first," "second," and the like are used for descriptive purposes only and to distinguish between similar objects, and there is no order of preference between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

As shown in fig. 1 and 2, the invention provides a pogpin electric connector, which comprises a PCB 3 and a plurality of contacts electrically connected to the PCB 3, wherein the contacts comprise a first contact 1 for transmitting signals and a second contact 2 for grounding, and the first contact 1 and the second contact 2 are arranged on the PCB 3 at intervals along the left-right direction. The PCB 3 is also connected with a plurality of cables 5 which are respectively and electrically connected with the first contact 1, the cables 5 comprise an electric conductor 51, an inner insulating layer 52 coated outside the electric conductor 51, a metal braiding layer 53 coated outside the inner insulating layer 52 and an outer insulating layer 54 coated outside the metal braiding layer 53, the connecting end of the metal braiding layer 53 extends forwards relative to the outer insulating layer 54, and the connecting end of the electric conductor 51 extends forwards relative to the metal braiding layer 53. As shown in fig. 3, the PCB 3 is further provided with a plurality of metal shielding cases 4, the metal shielding cases 4 respectively cover the first contacts 1 in a surrounding manner, and cover the connection ends of the electrical conductors 51 of the cables 5 corresponding to the first contacts 1 and cover the connection ends of the metal braid 53 at least partially, and the metal shielding cases 4 can prevent the transmission signals between the first contacts 1 from interfering with each other, thereby improving the signal transmission quality of the electrical connector, reducing the disturbance and resonance between the first contacts 1, and making the signal transmission of the electrical connector more stable.

As shown in fig. 3, the PCB 3 is further provided with a metal grounding strip 33, the connection ends of the metal braid 53 of the plurality of cables 5 are electrically connected with the metal grounding strip 33, and the metal grounding strip 33 is electrically connected with the ground wire of the PCB 3. Since the metal braid 53 of each cable 5 is connected to the same metal grounding bar 33, the electromagnetic field intensity at the periphery of each cable 5 is substantially the same, and the stability of signal transmission is further improved.

As shown in fig. 4, the contact is a spring needle contact pogpin, which comprises a needle tube 13, a spring 12 accommodated in the needle tube 13 and a needle shaft 11 capable of axially sliding in the needle tube 13, wherein the tail part of the needle shaft 11 is abutted against the spring 12, the front end part of the needle shaft 11 extends into the needle tube 13, and the front end of the needle shaft 11 of the first contact 1 extends forwards relative to the metal shielding cover 4. Preferably, the front ends of the pin shafts 11 of the plurality of contacts are located on the same plane, facilitating the plugging of the pogpin electrical connector.

As shown in fig. 3, the PCB 3 is provided with a plurality of first pads 311 for soldering the first contact 1, a plurality of second pads 312 for soldering the second contact 2, and a plurality of third pads 32 for soldering the electrical conductors 51 of the cable 5, wherein the first pads 311 are electrically connected to the third pads 32, and the second pads 312 are grounded. The first bonding pads 311 are in one-to-one correspondence with the third bonding pads 32, the first bonding pads 311 are located at the front side of the third bonding pads 32, the metal shielding cover 4 is of an arch structure with downward openings, the metal shielding cover 4 is arranged along the front-back direction, and the metal shielding cover 4 extends backwards to at least partially cover the connecting ends of the metal braiding layers 53 of the corresponding cables 5. In a preferred embodiment, the PCB portion between the two contacts is further provided with a plurality of insertion holes 34 arranged along the front-rear direction, the lower edge of the metal shielding case 4 is provided with a plurality of insertion portions 41, the insertion portions 41 are respectively inserted into the insertion holes 34, the metal shielding case 4 is fixed on the PCB 3 by welding, and the metal shielding case 4 is connected with the ground wire in the PCB through the insertion holes 34.

As shown in fig. 5, the first contact 1 and the second contact 2 of the present application have the same structure and are mounted on the PCB 3 in the same manner, and the first pads 311 and the second pads 312 have the same size and structure and are arranged on the PCB 3 at equal intervals in the left-right direction. Because the first contact 1 for transmitting signals and the second contact 2 for grounding are the same type of contact, the first bonding pad 311 and the second bonding pad 312 are also bonding pads with the same shape and size, and the first contact 1 and the second contact 2 are respectively connected with the first bonding pad 311 and the second bonding pad 312 in the same way, the increase of processing procedures caused by using the contacts and the bonding pads with different structures is avoided, the processing difficulty is reduced, and the production cost is saved.

The above-described embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.

Claims

1. A pogpin electric connector comprises a PCB (3), a plurality of contact pieces electrically connected to the PCB (3), a first contact piece (1) for transmitting signals is included in the contact pieces,

The PCB (3) is also connected with a plurality of cables (5) which are respectively and electrically connected with the first contact piece (1),

The cable (5) comprises an electric conductor (51), an inner insulating layer (52) coated outside the electric conductor (51), a metal braiding layer (53) coated outside the inner insulating layer (52) and an outer insulating layer (54) coated outside the metal braiding layer (53), wherein the connecting end of the metal braiding layer (53) extends forwards relative to the outer insulating layer (54), the connecting end of the electric conductor (51) extends forwards relative to the metal braiding layer (53),

The PCB (3) is also provided with a plurality of metal shielding covers (4), the metal shielding covers (4) respectively cover the first contact (1) in a surrounding manner, the connecting ends of the electric conductors (51) of the cables (5) corresponding to the first contact (1) are completely covered and the connecting ends of the metal braiding layers (53) are at least partially covered, the metal shielding covers (4) are of an arch structure with downward openings, the lower edges of the metal shielding covers (4) are welded on the PCB (3), the PCB part between the two contacts is also provided with a plurality of jacks (34) which are arranged along the front and back directions, the lower edges of the metal shielding covers (4) are provided with a plurality of inserting parts (41), the inserting parts (41) are respectively inserted into the jacks (34), the metal shielding covers (4) are connected with the ground wires in the PCB through the jacks (34), the contact parts are spring needle contacts, the lower edges of the metal shielding covers (4) are welded on the PCB (3), the PCB (13), the lower edges of the metal shielding covers are accommodated in the spring needle tube (13), the spring needle tube (13) and the needle tube (13) can be in a sliding mode, the tail parts of the needle tube (11) can be in the axial direction of the needle tube (11) and can be in the axial direction of the needle tube (13), the front end of the needle shaft (11) of the first contact piece (1) extends forwards relative to the metal shielding cover (4).

2. The pogpin electric connector of claim 1, wherein the plurality of contacts further comprises a second contact (2) for grounding, the first contact (1) and the second contact (2) are identical in structure and are mounted on the PCB (3) in the same manner, and the first contact (1) and the second contact (2) are arranged on the PCB (3) at intervals along the left-right direction.

3. The pogpin electrical connector of claim 2, wherein the PCB board (3) is provided with a plurality of first pads (311) for soldering the first contact (1), a plurality of second pads (312) for soldering the second contact (2), and a plurality of third pads (32) for soldering the electrical conductor (51) of the cable (5), the first pads (311) are electrically connected to the third pads (32), and the second pads (312) are grounded.

4. A pogpin electrical connector according to claim 3, wherein the first bonding pads (311) and the second bonding pads (312) are bonding pads with the same size and structure, and are arranged on the PCB board (3) at equal intervals along the left-right direction.

5. The pogpin electrical connector of claim 4, wherein the first bonding pads (311) are in one-to-one correspondence with the third bonding pads (32), the first bonding pads (311) are located at the front side of the third bonding pads (32), the cables (5) are located at the rear side of the first contact (1), the metal shielding cases (4) are arranged along the front-rear direction, and the metal shielding cases (4) extend backwards to at least partially cover the connection ends of the metal braid (53) of the corresponding cables (5).

6. The pogpin electrical connector of claim 5, wherein the PCB board (3) is further provided with a metal grounding strip (33), the connection ends of the metal braid (53) of the plurality of cables (5) are electrically connected with the metal grounding strip (33), and the metal grounding strip (33) is electrically connected with the ground wire of the PCB board (3).

7. The pogpin electrical connector of claim 6, wherein the front ends of the pin shafts (11) of the plurality of contacts are located on the same plane.