WO2023279758A1

WO2023279758A1 - Electrical connector assembly and communication device

Info

Publication number: WO2023279758A1
Application number: PCT/CN2022/080760
Authority: WO
Inventors: 毕煜; 易毕; 任永会; 魏仲民
Original assignee: 中兴通讯股份有限公司
Priority date: 2021-07-08
Filing date: 2022-03-14
Publication date: 2023-01-12
Also published as: CN115603078A

Abstract

An electrical connector assembly and a communication device. The electrical connector assembly comprises: a first connecting component (300) disposed at an edge of a first circuit board (100), the first connecting component (300) comprising a first crimping portion (310) located on a front surface of the first circuit board (100) and a first cable portion (320) located on a back surface of the first circuit board (100), wherein the front surface of the first circuit board (100) is the surface where a primary chip (110, 210) is located, the first crimping portion (310) is crimped to a via hole of the first circuit board (100) so as to transmit a signal, and the first cable portion (320) transmits a signal to the first circuit board (100) by means of the first cable (330) located on the back surface of the first circuit board (100); and a second connecting component (400) disposed on the second circuit board (200), the second connecting component (400) cooperating with the first connecting component (300) so as to transmit a signal.

Description

Electrical connector components and communication equipment

Cross References to Related Applications

This application is based on a Chinese patent application with application number 202110774659.2 and a filing date of July 8, 2021, and claims the priority of this Chinese patent application. The entire content of this Chinese patent application is hereby incorporated by reference into this application.

technical field

The present application relates to the technical field of communication, in particular to an electrical connector assembly and communication equipment.

Background technique

With the rapid increase in high-bandwidth transmission and high-performance computing requirements of communication equipment, the signal rate and bandwidth requirements between service boards or line cards and network boards in high-speed system architectures are getting higher and higher. The current market application of high-speed serial single-channel signal rate (SerDes rate) has reached 56Gbps, the mainstream rate under research is 112Gbps, and the industry has carried out research on 224G.

Important factors affecting high-speed signal quality include link loss and link reflection. The increase of the rate means the increase of insertion loss per unit length on the signal transmission path of the working frequency band. One problem with the traditional PCB as a high-speed signal transmission medium is that as the signal rate increases, its loss per unit length is too large to meet the signal drive/loss requirements of the system's long channel. In order to solve the problem of excessive insertion loss of long channels, high-speed cables have begun to replace traditional PCBs as the transmission medium for high-speed signals in some system architectures. Compared with traditional PCBs, high-speed cables have the important characteristic of low loss per unit length. But cable management is more complicated than PCB wiring, especially for high-density high-speed systems, the huge number of cables will cause great difficulties to system structure design and project management. On the other hand, for short channels, reflection will become the bottleneck of high-speed channel performance due to the small loss of cables. If the cable redundancy length is increased to solve the reflection problem, it will increase the difficulty of cable management.

Contents of the invention

Embodiments of the present application provide an electrical connector assembly and a communication device.

In a first aspect, an embodiment of the present application provides an electrical connector assembly configured to transmit signals between a first circuit board and a second circuit board, including: a first connecting part, the first connecting part is arranged on the At the edge of the first circuit board, the first connection part includes a first crimping part on the front of the first circuit board and a first cable part on the back of the first circuit board, wherein, The front side of the first circuit board is the side where the main chip is located, the first crimping part is crimped to the via hole of the first circuit board to transmit signals, and the first cable part passes through the The first cable on the back of a circuit board transmits signals to the first circuit board; the second connecting part, the second connecting part is arranged on the second circuit board, and the second connecting part is connected to the first circuit board A connection part is mated and docked to transmit signals.

In a second aspect, the embodiment of the present application provides a communication device, including a first circuit board, a second circuit board, and the electrical connector assembly as described in the embodiment of the first aspect above.

The embodiment of the present application includes: an electrical connector assembly and a communication device. According to the solution provided by the embodiment of the present application, the high-speed signal of the first circuit board can be transmitted to the first crimping part through the printed circuit, and can be transmitted to the first cable part through the first cable, and then through the first connecting part The printed circuit can be configured to transmit signals of a shorter link, and the cable can be configured to transmit signals of a longer link by mating and docking with the second connection component to transmit to a second circuit board.

Additional features and advantages of the application will be set forth in the description which follows, and, in part, will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

The accompanying drawings are used to provide an understanding of the technical solution of the present application, and constitute a part of the description, and are used together with the embodiments of the present application to explain the technical solution of the present application, and do not constitute a limitation to the technical solution of the present application.

The application is described below in conjunction with accompanying drawing and embodiment;

FIG. 1 is a schematic diagram of an electrical connector assembly provided in Embodiment 1 of the present application;

Fig. 2 is another perspective schematic view of an electrical connector assembly provided in Embodiment 1 of the present application;

Fig. 3 is a schematic diagram of an electrical connector assembly provided in Embodiment 2 of the present application;

Fig. 4 is another schematic diagram of an electrical connector assembly provided in Embodiment 2 of the present application;

Fig. 5 is another perspective schematic view of an electrical connector assembly provided in Embodiment 2 of the present application;

Fig. 6 is a schematic diagram of another angle of an electrical connector assembly provided in Embodiment 2 of the present application;

FIG. 7 is a schematic diagram of an electrical connector assembly provided in Embodiment 3 of the present application; and

FIG. 8 is a schematic diagram of a fish-eye structure of a crimping portion of an electrical connector assembly provided by an embodiment of the present application.

detailed description

This part will describe the specific embodiment of the application in detail, the embodiment of the application is shown in the accompanying drawings, the role of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and visually understand the application of the present application Each technical feature and the overall technical solution, but they should not be construed as limiting the protection scope of this application.

In the description of this application, if the first and second are described only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating The sequence of the indicated technical features.

In the description of this application, unless otherwise clearly defined, words such as setting, installation, and connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in this application in combination with the specific content of the technical solution.

Embodiments of the present application provide an electrical connector assembly and communication equipment, which can improve the quality of high-speed signals in a system while taking into account heat dissipation of circuit boards and cable management.

Embodiments of the present application will be described below in conjunction with the accompanying drawings.

The embodiment of the first aspect of the present application provides an electrical connector assembly configured to transmit signals between the first circuit board 100 and the second circuit board 200, including a first connecting part 300 and a second connecting part 400, wherein :

The first connection part 300 is arranged at the edge of the first circuit board 100, and the first connection part 300 includes a first crimping part 310 on the front side of the first circuit board 100 and a first line on the back side of the first circuit board 100. The cable part 320, wherein, the front side of the first circuit board 100 is the side where the main chip 110 is located, the first crimping part 310 is crimped on the via hole of the first circuit board 100 to transmit signals, and the first cable part 320 passes through the The first cable 330 on the back of the first circuit board 100 transmits signals to the first circuit board 100;

The second connection part 400 is disposed on the second circuit board 200 , and the second connection part 400 cooperates with the first connection part 300 to transmit signals.

It can be understood that the second circuit board 200 that performs signal transmission with the first circuit board 100 can have various forms, for example, it can be a backplane structure as shown in Figure 1 and Figure 2, and it can be as shown in Figure 3 to Figure 6 The orthogonal architecture shown may also be the coplanar plug-in architecture shown in FIG. 7 .

According to the solution provided by the embodiment of the present application, the high-speed signal of the first circuit board 100 can be transmitted to the first crimping part 310 through the printed circuit, and can be transmitted to the first cable part 320 through the first cable 330, and then through The mating docking of the first connection part 300 and the second connection part 400 is transmitted to the second circuit board 200, the printed circuit can be set to transmit the signal of the shorter link, and the cable can be set to transmit the signal of the longer link , so that the loss of the overall signal is within a more reasonable driving range and reflection specification control. In addition, the solution of the embodiment of the present application can make all the cables of the first circuit board 100 be located on the back, which is conducive to layout and wiring, and also avoids the main The front side where the chip 110 is located carries out a large number of cable combing, positioning and positioning problems, which is beneficial to the heat dissipation of the front side of the first circuit board 100, and also prevents the cable from being in a high-temperature environment, resulting in increased loss of the cable.

Referring to FIG. 1 and FIG. 2 , in an embodiment of the present application, the second circuit board 200 is a backplane. The second circuit board 200 may be a traditional PCB backplane, or a cable backplane. When the second circuit board 200 is a traditional PCB backplane, the second connection part 400 is crimped to the via hole of the second circuit board 200 to transmit signals, and the signal on the first circuit board 100 needs to be transmitted to the second circuit board 200, It can be divided into two parts, one part is transmitted to the via hole on the first circuit board 100 through the printed circuit on the first circuit board 100, and is transmitted to the first crimping part 310 through the via hole, and passes through the first crimping part 310 and the second crimping part 310. The mating and docking of the connection part 400 is thus transmitted to the second connection part 400, the second connection part 400 transmits the signal to the printed circuit on the second circuit board 200 through the via hole crimped on the second circuit board 200, and the other part passes through The first cable 330 on the back of the first circuit board 100 is transmitted to the first cable part 320, and then transmitted to the second connecting part 400 through the mating and docking of the first cable part 320 and the second connecting part 400, and the second connecting part 400 transmits the signal to the printed circuit on the second circuit board 200 by crimping on the via hole on the second circuit board 200; Similarly, the signal on the first circuit board 100 that needs to be transmitted to the second circuit board 200 can be divided into two parts and transmitted to the cables inside the second circuit board 200 respectively.

3 to 6, in an embodiment of the present application, the second circuit board 200 is orthogonal to the first circuit board 100, that is, the edge of the second circuit board 200 is perpendicular to the edge of the first circuit board 100, The electrical connector assembly configured to transmit signals between the first circuit board 100 and the second circuit board 200 includes a first connection part 300 and a second connection part 400, wherein:

As shown in FIG. 3 , the first connecting part 300 is arranged at the edge of the first circuit board 100 , and the first connecting part 300 includes a first crimping part 310 on the front side of the first circuit board 100 and a first crimping part 310 on the front side of the first circuit board 100 The first cable part 320 on the back side of the first circuit board 100, wherein the front side of the first circuit board 100 is the side where the main chip 110 is located, the first crimping part 310 is crimped to the via hole of the first circuit board 100 to transmit signals, the first The cable part 320 transmits signals to the first circuit board 100 through the first cable 330 located on the back of the first circuit board 100;

As shown in FIG. 3 and FIG. 5, both of FIG. 3 and FIG. 5 show the structural situation of the front of the second circuit board 200, and the second connecting member 400 includes a second crimping portion 410 and a The third crimping part 420, wherein the front side of the second circuit board 200 is on the side where the main chip 210 is located, the second crimping part 410 and the third crimping part 420 are crimped on the via hole of the second circuit board 200 to transmit signal, the second crimping part 410 cooperates with the first crimping part 310 to transmit signals, and the third crimping part 420 cooperates with the first cable part 320 to transmit signals;

As shown in FIG. 4 and FIG. 6, both of FIG. 4 and FIG. 6 show the structure of the back side of the second circuit board 200, and the second connecting member 400 also includes a second cable portion 430 located on the back side of the second circuit board 200 and the third cable part 440, the second cable part 430 and the third cable part 440 transmit signals to the second circuit board through the second cable 450 and the third cable 460 on the back side of the second circuit board 200 respectively 200, the second cable part 430 cooperates with the first crimping part 310 to transmit signals, and the third cable part 440 cooperates with the first cable part 320 to transmit signals;

As shown in Figure 3 and Figure 4, Figure 3 and Figure 4 both show the structure of the front of the first circuit board 100, the first crimping part 310 includes a fourth crimping part mated with the second crimping part 410 311 and the fifth crimping part 312 mated with the second cable part 430;

As shown in Figure 5 and Figure 6, Figure 5 and Figure 6 both show the structure of the back of the first circuit board 100, the first cable part 320 includes a fourth cable part mated with the third crimping part 420 321 and the fifth cable part 322 mated with the third cable part 440; the first cable 330 includes a fourth cable 331 and a fifth cable 332, and the fourth cable part 321 is transmitted through the fourth cable 331 The signal is sent to the first circuit board 100 , and the fifth cable part 322 transmits the signal to the first circuit board 100 through the fifth cable 332 .

It can be understood that the signals transmitted on the orthogonal architecture shown in Figure 3 to Figure 6 can be divided into the following four parts:

In the first part, the signal is transmitted from the printed circuit of the first circuit board 100 to the via hole, through the via hole to the fourth crimping part 311 that is crimped on the front of the first circuit board 100, and then through the connection with the second crimping part 410. Cooperate with docking and transfer to the second crimping part 410, and the second crimping part 410 is transmitted to the printed circuit of the second circuit board 200 through the via hole on the second circuit board 200;

In the second part, the signal is transmitted from the printed circuit of the first circuit board 100 to the via hole, through the via hole to the fifth crimping part 312 crimped on the front side of the first circuit board 100, and then through the connection with the second circuit board 200 on the back side. The matching and docking of the second cable part 430 of the second cable part 430 is transmitted to the second cable part 430, and the second cable part 430 is transmitted to the designated position on the second circuit board 200 through the second cable 450 on the back side of the second circuit board 200; It can be understood that one end of the second cable 450 is connected to the second cable part 430, and the other end is generally terminated with a connector, and the connector is usually located near the bottom of the main chip of the second circuit board 200;

In the third part, the signal is transmitted from the fourth cable 331 on the back of the first circuit board 100 to the fourth cable part 321, and is transmitted to the third crimping part 420 by mating with the third crimping part 420 on the front of the second circuit board 200. The third crimping part 420 is transmitted to the printed circuit of the second circuit board 200 through the via hole on the second circuit board 200; it can be understood that one end of the fourth cable 331 is connected to the fourth cable part 321 connection, the other end is generally terminated with a connector, and the connector is usually located near the bottom of the main chip of the first circuit board 100;

In the fourth part, the signal is transmitted from the fifth cable 332 on the back of the first circuit board 100 to the fifth cable part 322, and is transmitted to the third line by mating with the third cable part 440 on the back of the second circuit board 200. The cable part 440, the third cable part 440 is transmitted to the specified position on the second circuit board 200 through the third cable 460 on the back of the second circuit board 200; it can be understood that one end of the fifth cable 332 is connected to the fifth cable 332 The cable part 322 is connected, and the other end is generally terminated with a connector, which is usually located near the bottom of the main chip of the first circuit board 100. Similarly, one end of the third cable 460 is connected to the third cable part 440. The other end is generally terminated with a connector, and the connector is usually located near the bottom of the main chip of the second circuit board 200 .

It can be understood that, although in the embodiments of FIGS. 3 to 6 , the edge of the second circuit board 200 is perpendicular to the edge of the first circuit board 100; To form an acute angle or an obtuse angle with the edge of the first circuit board 100 , it is only necessary to ensure that the first connection part 300 and the second connection part 400 can be mated and docked normally and can transmit signals smoothly.

It can be understood that, in the orthogonal structures shown in FIGS. 3 to 6 , not all structures need to be provided. The second crimping part 410 and the third crimping part 420 on the front of the 200 are transmitted from the first circuit board 100 to the second circuit board 200 and correspondingly only include the above-mentioned first part and the third part; the second part of the second circuit board 200 The second connecting part 400 may also only include the second cable part 430 and the third cable part 440 located on the back of the second circuit board 200, and the transmission from the first circuit board 100 to the second circuit board 200 also includes only the above-mentioned first circuit board 200 accordingly. Part Two and Part Four.

In addition, in an embodiment of the present application, an intermediate backplane is disposed between the first circuit board 100 and the second circuit board 200 . The two surfaces of the mid-mounted backplane are respectively perpendicular to the first circuit board 100 and the second circuit board 200 , so that the first circuit board 100 and the second circuit board 200 can be better fixed. The mid-mounted backplane is not shown in Figures 3 to 6, but it does not affect the understanding of the mid-mounted backplane solution.

7, in one embodiment of the present application, the second circuit board 200 is parallel to the first circuit board 100; The sixth cable part 480 on the back side of the second circuit board 200; the sixth crimping part 470 cooperates with the first crimping part 310 to transmit signals, and the sixth crimping part 470 is crimped on the second circuit board 200 holes to transmit signals; the sixth cable part 480 is mated with the first cable part 320 to transmit signals, and the sixth cable part 480 transmits signals to the sixth cable part 480 through the sixth cable 490 located at the back of the second circuit board 200 Two circuit boards 200.

It can be understood that, in this embodiment, the signal transmitted from the first circuit board 100 to the second circuit board 200 may include two parts:

In the first part, the signal is transmitted from the printed circuit of the first circuit board 100 to the via hole, through the via hole to the first crimping part 310 crimped on the front of the first circuit board 100, and then through the connection with the sixth crimping part 470 Cooperate with butt joint transmission to the sixth crimping part 470, and the sixth crimping part 470 is transmitted to the printed circuit of the second circuit board 200 through the via hole on the second circuit board 200;

In the second part, the signal is transmitted to the first cable part 320 by the first cable 330 on the back of the first circuit board 100, and is transmitted to the sixth line by mating with the sixth cable part 480 on the back of the second circuit board 200. The cable part 480, the sixth cable part 480 is transmitted to the specified position on the second circuit board 200 through the sixth cable 490 on the back of the second circuit board 200; it can be understood that one end of the first cable 330 is connected to the first The cable part 320 is connected, and the other end is generally terminated with a connector, which is usually located near the bottom of the main chip 110 of the first circuit board 100. Similarly, one end of the sixth cable 490 is connected to the sixth cable part. 480 connection, the other end is generally terminated with a connector, and the connector is usually located near the bottom of the main chip 210 of the second circuit board 200 .

It can be understood that although the second circuit board 200 is parallel to the first circuit board 100 in the embodiment of FIG. For example, it is only necessary to ensure that the first connection part 300 and the second connection part 400 can be mated and docked normally and can transmit signals smoothly.

Referring to FIG. 8 , in an embodiment of the present application, the first crimping portion 310 is crimped to the via hole of the first circuit board 100 through a fish eye to transmit signals. Similarly, the second crimping portion 410 and the third crimping portion 420 may also be crimped to the via holes of the second circuit board 200 through fish eyes to transmit signals.

The embodiment of the second aspect of the present application provides a communication device, including the first circuit board 100, the second circuit board 200, and the electrical connector assembly as described above in the embodiment of the first aspect.

According to the solution provided by the embodiment of the present application, the high-speed signal of the first circuit board 100 can be transmitted to the first crimping part 310 through the printed circuit, and can be transmitted to the first cable part 320 through the first cable 330, and then through The mating docking of the first connection part 300 and the second connection part 400 is transmitted to the second circuit board 200, the printed circuit can be set to transmit the signal of the shorter link, and the cable can be set to transmit the signal of the longer link , so that the loss of the overall signal is within a more reasonable driving range and reflection specification control. In addition, the solution of the embodiment of the present application can make all the cables of the first circuit board 100 be located on the back, which is conducive to layout and wiring, and also avoids the main The front side where the chip 110 is located carries out a large number of cable combing, positioning and positioning problems, which is beneficial to the heat dissipation of the front side of the first circuit board 100, and also prevents the cable from being in a high-temperature environment, resulting in increased loss of the cable. The embodiments of the present application have been described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned embodiments. Within the scope of knowledge possessed by those of ordinary skill in the technical field, various modifications can be made without departing from the purpose of the present application. kind of change.

Claims

An electrical connector assembly configured to transmit signals between a first circuit board and a second circuit board, comprising:

The first connecting part, the first connecting part is arranged at the edge of the first circuit board, and the first connecting part includes a first crimping part on the front side of the first circuit board and a first crimping part on the first circuit board The first cable part on the back side of a circuit board, wherein the front side of the first circuit board is the side where the main chip is located, and the first crimping part is crimped to the via hole of the first circuit board to transmit signal, the first cable part transmits the signal to the first circuit board through the first cable located on the back of the first circuit board; and

A second connection part, the second connection part is arranged on the second circuit board, and the second connection part cooperates with the first connection part to transmit signals.
The electrical connector assembly according to claim 1, wherein the second connecting part comprises a second crimping portion and a third crimping portion on the front side of the second wiring board, wherein the second wiring The front side of the board is where the main chip is located, the second crimping part and the third crimping part are crimped to the via holes of the second circuit board to transmit signals, and the second crimping part and the The first crimping part is mated and docked for signal transmission, and the third crimping part is mated and docked with the first cable part for signal transmission.
The electrical connector assembly according to claim 2, wherein the second connecting part further comprises a second cable portion and a third cable portion located on the back of the second circuit board, the second cable part and the third cable part respectively transmit signals to the second circuit board through the second cable and the third cable located on the back of the second circuit board, the second cable part and the The first crimping part is mated and connected to transmit signals, and the third cable part is mated and connected to the first cable part to transmit signals.
The electrical connector assembly according to claim 3, wherein the first crimping portion includes a fourth crimping portion mated with the second crimping portion and a fourth crimping portion mated with the second cable portion. The fifth crimping part; the first cable part includes a fourth cable part mated with the third crimping part and a fifth cable part mated with the third cable part; the first The cables include a fourth cable and a fifth cable, the fourth cable transmits signals to the first circuit board through the fourth cable, and the fifth cable transmits signals to the first circuit board through the fifth wire The cable transmits signals to the first circuit board.
The electrical connector assembly according to claim 1, wherein the second connecting part comprises a second cable part and a third cable part located on the back side of the second circuit board, wherein the second circuit The back side of the board is the side without the main chip, and the second cable part and the third cable part transmit signals to the For the second circuit board, the second cable part is mated with the first crimping part to transmit signals, and the third cable part is mated with the first cable part to transmit signals.
The electrical connector assembly according to any one of claims 2 to 5, wherein an intermediate backplane is disposed between the first circuit board and the second circuit board.
The electrical connector assembly according to claim 1, wherein the second circuit board is a backplane, and the second connecting member is crimped to the via hole of the second circuit board to transmit signals or communicate with the first circuit board. The cables inside the two circuit boards are connected to transmit signals.
The electrical connector assembly according to claim 1, wherein the second connection part comprises a sixth crimping portion on the front side of the second wiring board and a sixth wire on the back side of the second wiring board. The cable part; the sixth crimping part cooperates with the first crimping part to transmit signals, and the sixth crimping part is crimped to the via hole of the second circuit board to transmit signals; the The sixth cable part cooperates with the first cable part to transmit signals, and the sixth cable part transmits signals to the second circuit through the sixth cable located on the back of the second circuit board plate.
The electrical connector assembly according to claim 1, wherein the first crimping part is crimped to the via hole of the first circuit board through a fish eye to transmit signals.
A communication device, comprising a first circuit board, a second circuit board and the electrical connector assembly according to any one of claims 1-9.