CN219144538U

CN219144538U - Board-to-board connector

Info

Publication number: CN219144538U
Application number: CN202222913307.3U
Authority: CN
Inventors: 王怡平; 尹海港
Original assignee: Qidong Qianshuo Electronic Co Ltd
Current assignee: Qidong Qianshuo Electronic Co Ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-06-06
Anticipated expiration: 2032-11-02

Abstract

The utility model discloses a board-to-board connector, which comprises an insulating body, a plurality of high-frequency signal terminals and a plurality of grounding terminals, wherein the insulating body comprises a central island part, at least one grounding terminal is arranged between every two adjacent high-frequency signal terminals, the high-frequency signal terminals comprise first contact parts exposed on the outer surfaces of the central island parts, the grounding terminals comprise second contact parts exposed on the outer surfaces of the central island parts, the second contact parts are of a vertical board body structure which transversely extends and are arranged between the two corresponding adjacent high-frequency signal terminals, and the signal interference between the high-frequency signal terminals can be completely blocked, so that the electromagnetic crosstalk is reduced, and the high-frequency performance of the board-to-board connector is effectively improved.

Description

Board-to-board connector

Technical Field

The present utility model relates to a board-to-board connector, and more particularly, to a board-to-board connector having a high-frequency signal terminal and a ground terminal.

Background

Board-to-board connectors (Board to Board Connector, collectively BTB) are a type of connector commonly used in electronic devices (e.g., cell phones, tablet computers, etc.) that function to mechanically and electrically interconnect a motherboard of the electronic device with various modules (e.g., display modules, touch modules, camera modules, etc.).

The board-to-board connector generally comprises a lengthwise insulating body, a plurality of high-frequency signal terminals and a plurality of grounding terminals, wherein the grounding terminals are arranged between two adjacent high-frequency signal terminals, along with the continuous iteration of a communication network, the higher the frequency is, the shorter the wavelength is, and in a high-frequency circuit, the problems of leakage, reflection and the like of a high-frequency electric field can be generated by the high-frequency signal terminals, so that signal interference is generated between the adjacent high-frequency signal terminals, and the traditional grounding terminals are difficult to reduce the signal interference between the high-frequency signal terminals.

Therefore, there is a need to design a new board-to-board connector to solve the above-mentioned technical problems.

Disclosure of Invention

An object of the present utility model is to provide a board-to-board connector having improved high-frequency performance.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the board-to-board connector comprises a longitudinally extending insulating body, a plurality of high-frequency signal terminals and a plurality of grounding terminals, wherein the high-frequency signal terminals and the grounding terminals are respectively fixed on the insulating body, the insulating body comprises a central island part, at least one grounding terminal is arranged between every two adjacent high-frequency signal terminals, the high-frequency signal terminals comprise first contact parts exposed on the outer surfaces of the central island parts and first welding feet extending out of the insulating body from the first contact parts, the grounding terminals comprise second contact parts exposed on the outer surfaces of the central island parts and second welding feet extending out of the insulating body from the second contact parts, and the second contact parts are of a vertical board structure extending transversely and are arranged between the corresponding adjacent high-frequency signal terminals.

In a preferred embodiment, the second contact portion is a seamless structure.

In a preferred embodiment, the ground terminal is formed by blanking or drawing a metal plate.

In a preferred embodiment, the central island includes an island top surface, a pair of longitudinal end surfaces and a pair of transverse end surfaces, the longitudinal end surfaces and the transverse end surfaces extending downwardly from the island top surface, respectively, the first contact portion being exposed to the transverse end surfaces.

In a preferred embodiment, the second contact portion is exposed to the lateral end face.

In a preferred embodiment, the first contact portion or/and the second contact portion is exposed to the island top surface.

In a preferred embodiment, the second contact portion includes a top wall, a pair of longitudinal end walls extending from the top wall at its longitudinal ends and a pair of transverse end walls extending from the top wall at its transverse ends and extending from the top wall at its transverse ends, the pair of longitudinal end walls being longitudinally spaced apart, the transverse end walls being laterally spaced apart, the transverse end walls being exposed to the transverse end surfaces.

In a preferred embodiment, the top wall is exposed to the island top surface.

In a preferred embodiment, further comprising a pair of metal reinforcement shells secured to the ends of the insulator body, including a top reinforcement sheet, an end reinforcement sheet, a pair of laterally spaced side reinforcement sheets and a securing sheet; the top reinforcing sheet is exposed out of the top surface of the island part; the end reinforcing sheet is bent downwards from the longitudinal outer edge of the top reinforcing sheet and is exposed on the longitudinal end face; the side reinforcing sheet is bent downwards from the transverse outer edge of the top reinforcing sheet and is exposed on the transverse end face; the fixing piece is bent downward from the longitudinal inner edge of the top reinforcing piece and is disconnected from the side reinforcing piece, and the fixing piece is completely fixed in the central island portion.

In a preferred embodiment, the high-frequency signal terminal and/or the ground terminal are insert molded to the insulating body.

The second contact part of the grounding terminal of the board-to-board connector is of a vertical board body structure extending transversely and is arranged between two adjacent high-frequency signal terminals, so that signal interference between the high-frequency signal terminals can be completely cut off, electromagnetic crosstalk is reduced, and high-frequency performance of the board-to-board connector is effectively improved.

Drawings

Fig. 1A to 1B are perspective views of the board-to-board connector according to the present utility model at different angles.

Fig. 2 is a perspective view of a high-frequency signal terminal of the board-to-board connector of the present utility model.

Fig. 3 is a perspective view of a ground terminal of the board-to-board connector of the present utility model.

Fig. 4A to 4B are perspective views of the reinforcing housing of the board-to-board connector according to the present utility model at different angles.

Fig. 5A to 5B are perspective views of the ground terminal of the board-to-board connector according to another embodiment of the present utility model at different angles.

Description of the embodiments

Referring to fig. 1A to fig. 4B, an embodiment of the utility model discloses a board-to-board connector 100, which includes an insulative housing 10 extending along a longitudinal direction, a plurality of high frequency signal terminals 20 respectively fixed in the insulative housing 10 in an insert molding manner, a plurality of grounding terminals 30 and two metal reinforcement shells 40, wherein a grounding terminal 30 is arranged between each two adjacent high frequency signal terminals 20 for reducing signal interference.

The insulating body 10 is provided with a central island 11 extending in the longitudinal direction for insertion into a socket of a mating connector (not shown). The central island 11 includes an island top 110, a pair of longitudinal end surfaces 111, and a pair of transverse end surfaces 112, the longitudinal end surfaces 111 and the transverse end surfaces 112 extending downward from the island top 110, respectively.

The high-frequency signal terminals 20 and the ground terminals 30 are arranged in a row, and at least one ground terminal 30 is arranged between two adjacent high-frequency signal terminals 20 for reducing signal interference between two adjacent high-frequency signal terminals 20. Each high-frequency signal terminal 20 comprises a first contact portion 21 and a first welding pin 22 bent from the lower end of the first contact portion 21 to extend out of the insulating body 10, wherein the first contact portion 21 is exposed on the outer surface of the central island portion 11 of the insulating body 10 for electrically contacting with a mating connector. The first contact portion 21 has an inverted U-shape, and includes an upper contact portion 211 and side contact portions 212 extending from both lateral ends of the upper contact portion 211 to be bent downward, the upper contact portion 211 being exposed at the island portion top surface 110, and the side contact portions 212 being exposed at the lateral end surfaces 112. The first bonding feet 22 are provided in two, and extend horizontally from the lower end of the side contact portion 212 to the outside in a vertical direction, and the first bonding feet 22 are coplanar with the bottom surface of the insulating body 10.

The grounding terminal 30 is formed by blanking a metal plate and comprises a second contact part 31 and a second welding foot 32 horizontally extending outwards from the lower end of the second contact part 31, wherein the second contact part 31 is of a vertical plate body structure extending transversely and is of a seamless structure; the second contact portion 31 is exposed from the island top surface 110 and the lateral end surface 112 of the central island 11 of the insulating body 10, and is used for electrically contacting with the mating connector.

The reinforcement housing 40 includes longitudinal ends fixed to the central island 11 of the insulating body 10 for lifting the overall strength of the board-to-board connector 100. The reinforcement shell 40 includes a top reinforcement piece 41, an end reinforcement piece 42, a pair of laterally spaced apart side reinforcement pieces 43, a securing piece 44, and a third weld foot 45. The top stiffener 41 is exposed to the island top surface 110 of the central island 11 and is longitudinally spaced from the upper contact 211; the end reinforcing sheet 42 is bent downward from the longitudinal outer edge of the top reinforcing sheet 41 and is exposed from the longitudinal end face 111 of the central island 11; each side reinforcing piece 43 is folded and extended downward from the lateral outer edge of the top reinforcing piece 41, is exposed to the lateral end face 112 of the center island 11, and is longitudinally spaced from the side contact portion 212 of the adjacent high-frequency signal terminal 30; the fixing piece 44 is bent downward from the longitudinal inner edge of the top reinforcing piece 41 and is disconnected from the side reinforcing piece 43, and the fixing piece 44 is completely embedded in the central island 11 of the insulating body 10, thereby increasing the fixing strength between the insulating body 10 and the reinforcing shell 40.

The grounding terminal 30 is formed by blanking a metal plate, the second contact part 31 of the grounding terminal 30 is of a vertical plate body structure extending transversely, and is of a seamless structure, so that signal interference between the high-frequency signal terminals 20 can be completely cut off, electromagnetic crosstalk is reduced, and high-frequency performance of the plate-to-plate connector 100 is effectively improved.

Referring to fig. 5A and 5B, in another embodiment of the present utility model, the ground terminal 50 is formed by drawing and stretching, and the second contact portion 51 of the ground terminal 50 is also configured as a vertical plate structure extending transversely, and is a seamless structure, so that the object of the present utility model can be achieved correspondingly. Specifically, the second contact portion 51 is buried in the central island portion 11 of the insulating body 10, and includes a top wall 511, a pair of longitudinal end walls 512 extending from both longitudinal ends of the top wall 511 in a downward bending manner, and a pair of transverse end walls 513 extending from both transverse ends of the top wall 511 in a downward bending manner, wherein the top wall 511 is exposed to the island top surface 110 of the central island portion 11, the pair of longitudinal end walls 512 are longitudinally spaced apart and are respectively completely buried in the central island portion 11 of the insulating body 10, the pair of transverse end walls 513 are laterally spaced apart and are respectively exposed to the transverse end surfaces 112 of the central island portion 11, and the second welding leg 52 is formed by extending from the lower end of the transverse end wall 513 in a downward bending manner.

Although the preferred embodiments of the present utility model have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the utility model as disclosed in the accompanying claims.

Claims

1. The utility model provides a board-to-board connector, its includes the longitudinally extending insulator and be fixed in respectively a plurality of high frequency signal terminals and a plurality of ground terminal of insulator, the insulator includes central island portion, every adjacent two arrange at least one between the high frequency signal terminal the ground terminal, the high frequency signal terminal includes exposing in the first contact portion of central island portion surface and follow first contact portion extends the first welding foot of insulator, the ground terminal includes exposing in the second contact portion of central island portion surface and follow second contact portion extends the second welding foot of insulator, its characterized in that: the second contact part is of a vertical plate body structure extending transversely and is arranged between two adjacent high-frequency signal terminals correspondingly.

2. The board-to-board connector of claim 1, wherein: the second contact part is of a seamless structure.

3. The board-to-board connector of claim 1, wherein: the grounding terminal is formed by blanking or drawing and stretching a metal plate.

4. The board-to-board connector of claim 1, wherein: the central island includes an island top surface, a pair of longitudinal end surfaces and a pair of transverse end surfaces, the longitudinal end surfaces and the transverse end surfaces extending downward from the island top surface, respectively, and the first contact portion is exposed to the transverse end surfaces.

5. The board-to-board connector of claim 4, wherein: the second contact portion is exposed to the lateral end face.

6. The board-to-board connector of claim 4, wherein: the first contact portion or/and the second contact portion is/are exposed to the island top surface.

7. The board-to-board connector of claim 4, wherein: the second contact portion includes a top wall, a pair of longitudinal end walls extending from the top wall at its longitudinal ends and a pair of transverse end walls extending from the top wall at its transverse ends, the pair of longitudinal end walls being longitudinally spaced apart, the transverse end walls being laterally spaced apart, the transverse end walls being exposed to the transverse end surfaces.

8. The board-to-board connector of claim 7, wherein: the top wall is exposed to the island top surface.

9. The board-to-board connector of claim 4, wherein: the metal reinforcement shell comprises a top reinforcement piece, an end reinforcement piece, a pair of side reinforcement pieces and a fixing piece, wherein the side reinforcement pieces are transversely spaced; the top reinforcing sheet is exposed out of the top surface of the island part; the end reinforcing sheet is bent downwards from the longitudinal outer edge of the top reinforcing sheet and is exposed on the longitudinal end face; the side reinforcing sheet is bent downwards from the transverse outer edge of the top reinforcing sheet and is exposed on the transverse end face; the fixing piece is bent downward from the longitudinal inner edge of the top reinforcing piece and is disconnected from the side reinforcing piece, and the fixing piece is completely fixed in the central island portion.

10. The board-to-board connector according to one of claims 1-9, wherein: the high-frequency signal terminal and/or the grounding terminal are/is inserted and molded in the insulating body.