Connector with anti-crosstalk structure

Abstract

The utility model discloses a connector with an anti-crosstalk structure, which is characterized in that a terminal group comprises a plurality of differential signal pairs, each differential signal pair comprises two terminals, and the terminals are connected with a first PCB (printed circuit board); one end of the conversion terminal group is connected with the first PCB, and the other end of the conversion terminal group extends out of the insulating body and is connected with an external second PCB; a part of terminals are replaced by a first PCB to perform signal transmission, so that interference of internal signals is reduced, and two non-adjacent terminals in the same differential signal pair and two adjacent terminals in the other same differential signal pair are arranged in a front-and-back staggered manner; and the probability of signal crosstalk between different differential signal pairs is further reduced, so that the stability of the whole signal transmission process is ensured, and the user experience is better.

Description

Technical Field

[0001] The utility model relates to the technology of connector field, in particular to a connector with an anti-crosstalk structure. Background Art

[0002] Connectors are also called connectors. Domestically, they are also called joints and sockets, and generally refer to electrical connectors. These are devices that connect two active components, transmitting current or signals. The male and female ends, when in contact, can transmit information or current, and are also called connectors. The basic performance of connectors can be categorized into three main categories: mechanical, electrical, and environmental. Another important mechanical performance characteristic is the mechanical life of the connector. Mechanical life is actually a durability indicator, referred to as mechanical operation in the national standard GB5095. It is based on a single insertion and removal cycle, and the evaluation criteria are whether the connector can properly perform its connection function (such as contact resistance) after the specified insertion and removal cycles.

[0003] In existing connectors, two terminals in different differential signal pairs are located between the remaining differential signal pairs, resulting in two non-adjacent terminals in the same differential signal pair interfering with the signal transmission process of the remaining differential signal pairs, which is prone to signal crosstalk, thereby affecting the stability of the connector signal transmission and the user experience; therefore, it is necessary to make further improvements to the existing connector structure. Utility Model Content

[0004] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a connector with an anti-crosstalk structure, which can effectively solve the problems of the existing connectors being prone to signal crosstalk, affecting the stability of the transmission process, and providing poor user experience.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A connector with an anti-crosstalk structure includes an insulating body, a first PCB board, a terminal group, a transfer terminal group and a shielding shell; the front end surface of the insulating body is integrally provided with an insertion cavity recessed inwardly; the first PCB board is arranged on the insulating body and located in the insertion cavity; the terminal group is arranged on the insulating body and extends inwardly into the insertion cavity, the terminal group includes a plurality of differential signal pairs, each differential signal pair includes two terminals, and the terminals are connected to the first PCB board; wherein two non-adjacent terminals in the same differential signal pair are arranged in a front-to-back staggered manner with two adjacent terminals in the remaining same differential signal pairs; the transfer terminal group is arranged on the insulating body, one end of the transfer terminal group is connected to the first PCB board, and the other end of the transfer terminal group extends outward from the insulating body and is connected to an external second PCB board; the shielding shell is sleeved on the outer surface of the insulating body.

[0007] As a preferred solution, the insertion cavities are arranged in two layers up and down. Each layer includes a plurality of insertion cavities arranged horizontally at intervals. A first PCB board, a terminal group, and a transfer terminal group are correspondingly arranged in each insertion cavity.

[0008] As a preferred solution, each terminal includes an integrally formed main body portion, a contact portion, and a welding portion. The main body portion is located at the bottom of the insertion cavity, and the contact portion is integrally bent upward from the main body portion; the welding portion is connected to the first PCB board.

[0009] As a preferred solution, for two non-adjacent terminals in the same differential signal pair, the main body portions and welding portions of the two terminals that are adjacent to each other in the remaining same differential signal pair are arranged in a front-back offset manner.

[0010] As a preferred solution, a mounting plate is provided on the insulating body. The mounting plate is located in the insertion cavity, and the main body portion is embedded in the mounting plate.

[0011] As a preferred solution, the transfer terminal group includes a plurality of transfer terminals, and the two transfer terminals connected to the two terminals in the same differential signal pair are arranged adjacent to each other.

[0012] As a preferred solution, a fixing plate is provided on the insulating body, and the transfer terminal group is embedded in the fixing plate.

[0013] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions:

[0014] It includes a plurality of differential signal pairs through the terminal group. Each differential signal pair includes two terminals, and the terminals are connected to the first PCB board; one end of the transfer terminal group is connected to the first PCB board, and the other end of the transfer terminal group extends out of the insulating body and is connected to an external second PCB board; it uses the first PCB board to replace part of the terminals for signal transmission, thereby reducing the interference of internal signals, and cooperates with the front-back offset arrangement of two non-adjacent terminals in the same differential signal pair and the two adjacent terminals in the remaining same differential signal pair; further reducing the probability of signal crosstalk between different differential signal pairs, thus ensuring the stability of the overall signal transmission process and providing a better user experience.

[0015] To more clearly illustrate the structural features and functions of the present invention, the present invention will be described in detail below with reference to the drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of a preferred embodiment of the present invention;

[0017] Figure 2It is a schematic exploded view of a preferred embodiment of the present utility model;

[0018] Figure 3 It is a schematic partial assembly view of a preferred embodiment of the present utility model;

[0019] Figure 4 It is a schematic cross-sectional view of a preferred embodiment of the present utility model.

[0020] Explanation of reference numerals in the drawings:

[0021] 10. Insulating body 101. Insertion cavity

[0022] 11. Mounting plate 12. Fixing plate

[0023] 20. First PCB board 30. Terminal group

[0024] 31. Differential signal pair 32. Terminal

[0025] 321. Main body part 322. Contact part

[0026] 323. Welding part 40. Adapter terminal group

[0027] 41. Adapter terminal 50. Shielding case

[0028] 60. Second PCB board. Detailed implementation manners

[0029] Please refer to Figures 1 to 4 as shown, which shows the specific structure of a preferred embodiment of the present utility model, including an insulating body 10, a first PCB board 20, a terminal group 30, an adapter terminal group 40, and a shielding case 50.

[0030] The front end face of the insulating body 10 is integrally recessed inwardly with an insertion cavity 101; in this embodiment, the insertion cavity 101 is arranged in two layers up and down, and each layer includes a plurality of insertion cavities 101 arranged horizontally at intervals, and a first PCB board 20, a terminal group 30, and an adapter terminal group 40 are correspondingly arranged in each insertion cavity 101. An installation plate 11 is arranged on the insulating body 10, and the installation plate 11 is located in the insertion cavity 101. A fixing plate 12 is arranged on the insulating body 10.

[0031] The first PCB board 20 is arranged on the insulating body 10 and is located in the insertion cavity 101.

[0032] The terminal group 30 is arranged on the insulating body 10 and extends inward into the insertion cavity 101. The terminal group 30 includes a plurality of differential signal pairs 31. Each differential signal pair 31 includes two terminals 32, and the terminals 32 are connected to the first PCB board 20. Among them, two non-adjacent terminals 32 in the same differential signal pair 31 and two adjacent terminals 32 in the other same differential signal pair 31 are arranged in a front-back dislocation manner. By means of the front-back dislocation arrangement, the signal crosstalk problem between different differential signal pairs is reduced. In this embodiment, each terminal 32 includes an integrally formed main body portion 321, a contact portion 322, and a welding portion 323. The main body portion 321 is located at the bottom of the insertion cavity 101, and the contact portion 322 is integrally bent upward from the main body portion 321. The welding portion 323 is connected to the first PCB board 20. The main body portions 321 and the welding portions 323 of two non-adjacent terminals 32 in the same differential signal pair 31 and two adjacent terminals 32 in the other same differential signal pair 31 are arranged in a front-back dislocation manner, thereby ensuring the stability of the connection between the terminals 32 at different positions and the external contact. The main body portion 321 is embedded in the mounting plate 11, and the mounting plate 11 is used to fix the position of the main body portion 321, thereby increasing the structural strength of the terminal 32.

[0033] The adapter terminal group 40 is arranged on the insulating body 10. One end of the adapter terminal group 40 is connected to the first PCB board 20, and the other end of the adapter terminal group 40 extends out of the insulating body 10 and is connected to the external second PCB board 60. By cooperating with the first PCB board 20, the first PCB board 20 is used to replace the transmission function of part of the terminal group 30. Compared with the transmission process of the terminals, the transmission process of the PCB board can further prevent signal crosstalk. In this embodiment, the adapter terminal group 40 includes a plurality of adapter terminals 41, and the two adapter terminals 41 connected to the two terminals 32 in the same differential signal pair 31 are arranged adjacent to each other, thereby avoiding signal interference during the transmission process of the adapter terminal group 40. The adapter terminal group 40 is embedded in the fixing plate 12, and the fixing plate 12 is used to fix the position of the adapter terminal group 40, further enhancing the overall structural strength.

[0034] The shielding case 50 is sleeved on the outer surface of the insulating body 10. The shielding case 50 is used to shield the signal interference from the outside world to the inside of the connector.

[0035] The design focus of the present invention is that: it includes multiple differential signal pairs through a terminal group, each differential signal pair includes two terminals, and the terminals are connected to a first PCB board; one end of the adapter terminal group is connected to the first PCB board, and the other end of the adapter terminal group extends outward from the insulating body and is connected to an external second PCB board; it uses the first PCB board to replace some terminals to transmit signals, thereby reducing internal signal interference, and coordinates the front-to-back staggered arrangement of two non-adjacent terminals in the same differential signal pair with the two adjacent terminals in the remaining same differential signal pairs; the probability of signal crosstalk between different differential signal pairs is further reduced, thereby ensuring the stability of the overall signal transmission process and improving the user experience.

[0036] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A connector with a crosstalk prevention structure, characterized in that: It includes an insulating body, a first PCB board, a terminal group, a transfer terminal group and a shielding shell; the front end surface of the insulating body is integrally recessed with an insertion cavity; the first PCB board is arranged on the insulating body and located in the insertion cavity; the terminal group is arranged on the insulating body and extends inwardly into the insertion cavity, the terminal group includes a plurality of differential signal pairs, each differential signal pair includes two terminals, and the terminals are connected to the first PCB board; wherein two non-adjacent terminals in the same differential signal pair are arranged in a front-to-back staggered manner with two adjacent terminals in the remaining same differential signal pairs; the transfer terminal group is arranged on the insulating body, one end of the transfer terminal group is connected to the first PCB board, and the other end of the transfer terminal group extends outward from the insulating body and is connected to an external second PCB board; the shielding shell is sleeved on the outer surface of the insulating body.

2. The connector with a crosstalk prevention structure according to claim 1, wherein: The insertion cavity is provided in two layers, each layer including a plurality of insertion cavities arranged at intervals in a transverse direction, and each insertion cavity is correspondingly provided with a first PCB board, a terminal group and a transfer terminal group.

3. The connector with a crosstalk prevention structure according to claim 1, wherein: Each terminal includes an integrally formed main body, a contact portion, and a soldering portion. The main body is located at the bottom of the insertion cavity, and the contact portion is formed by bending the main body upwards. The soldering portion is connected to the first PCB board.

4. The connector with an anti-crosstalk structure according to claim 3, wherein: The main bodies and welding portions of the two non-adjacent terminals in the same differential signal pair and the two adjacent terminals in the other differential signal pairs are arranged in a front-to-back staggered manner.

5. The connector with a crosstalk prevention structure according to claim 4, wherein: The insulating body is provided with a mounting plate, the mounting plate is located in the insertion cavity, and the main body is embedded in the mounting plate.

6. The connector with an anti-crosstalk structure according to claim 1, wherein: The transfer terminal group includes a plurality of transfer terminals, which are arranged adjacent to two transfer terminals connected to two terminals in the same differential signal pair.

7. The connector with a crosstalk prevention structure according to claim 1, wherein: A fixing plate is provided on the insulating body, and the transfer terminal group is embedded in the fixing plate.

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