Connector and cable connector

Abstract

The embodiment of the utility model provides a connector and a cable connector. The connector is used for a cable connector. The connector comprises a shell and a circuit board. The circuit board is arranged in the shell. The circuit board comprises a board body, a first metal wire and a second metal wire. The first metal wire comprises a first plugging terminal and a first connecting terminal which are electrically connected. The second metal wire comprises a second plugging terminal and a second connecting terminal which are electrically connected. The first plugging terminal, the second plugging terminal and the first connecting terminal are arranged on the first surface of the board body. The second connecting terminal is arranged on the second surface of the board body. The first surface and the second surface are arranged oppositely. Wherein one of the first metal wire and the second metal wire is a receiving side metal wire, and the other one of the first metal wire and the second metal wire is a sending side metal wire. According to the connector provided by the embodiment of the invention, crosstalk signals can be effectively reduced, and the signal integrity is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of connector technology, and in particular to a connector and a cable connector. Background Art

[0002] High-speed cable connectors can usually be used for communication between devices such as servers and switches. Cable connectors can achieve a higher transmission rate. The cable connector may include a connector and a cable. The cable includes an insulating outer layer and a wire. The material of the wire may be a metal material such as copper or copper alloy. A connector may be provided at the end of the cable. The cable is electrically connected to the connector. The connector has a plug-in side. The plug-in side of the connector can be plugged in and out of the corresponding interface of the server or switch. The connector can receive and send data at the same time. When the cable connector is in use, there is a signal crosstalk problem between the receiving data transmission path and the sending data transmission path. Therefore, how to reduce signal crosstalk while ensuring that the cable connector has a higher transmission rate has become an urgent problem to be solved. Utility Model Content

[0003] The embodiments of the present application provide a connector and a cable connector, which can effectively reduce crosstalk signals and improve signal integrity.

[0004] In a first aspect, an embodiment of the present application provides a connector for a cable connector. The connector includes a housing and a circuit board. The circuit board is arranged inside the housing. The circuit board includes a board body, a first metal trace and a second metal trace. The first metal trace includes a first electrically connected plug-in terminal and a first connecting terminal. The second metal trace includes a second electrically connected plug-in terminal and a second connecting terminal. The first plug-in terminal, the second plug-in terminal and the first connecting terminal are arranged on the first surface of the board body. The second connecting terminal is arranged on the second surface of the board body. The first surface and the second surface are arranged opposite to each other. Among them, one of the first metal trace and the second metal trace is a receiving side metal trace, and the other is a sending side metal trace.

[0005] In the connector of the embodiment of the present application, the circuit board includes a board body, a first connection terminal and a second connection terminal. The first connection terminal and the second connection terminal are respectively located on different surfaces of the board body, so that the signal isolation between the first connection terminal and the second connection terminal can be achieved through the board body, which is beneficial to reducing the crosstalk signal. Therefore, when the connector of the embodiment of the present application is in use, it can effectively reduce the possibility of signal crosstalk problems between the receiving data transmission path and the sending data transmission path, improve signal integrity (SI), and improve the signal-to-noise ratio, so as to facilitate the connector to achieve a higher transmission rate. In addition, the connector of the embodiment of the present application itself does not need to additionally set up a signal shielding structure to effectively reduce the crosstalk signal, so that the structure of the connector itself is relatively simple, which is beneficial to the structural design of the connector and reduces the number of parts used, thereby reducing the assembly process and reducing the difficulty of assembly, which is beneficial to reducing production costs.

[0006] In a possible implementation manner, along the thickness direction of the circuit board, the orthographic projection of the first connecting terminal does not overlap with the orthographic projection of the second connecting terminal.

[0007] The first connection terminal and the second connection terminal are staggered with each other along the width direction of the circuit board. The width direction of the circuit board is perpendicular to the thickness direction of the circuit board. The distance between the first connection terminal and the second connection terminal is large, which is conducive to further reducing crosstalk signals.

[0008] In a possible implementation manner, along the thickness direction of the circuit board, the orthographic projection of the first connecting terminal and the orthographic projection of the second connecting terminal have an overlapping area.

[0009] In the width direction of the circuit board, the area jointly occupied by the first connection terminal and the second connection terminal is relatively small, which is beneficial to reducing the width of the circuit board, thereby saving the internal space of the housing.

[0010] In a possible implementation, the first metal trace further includes a first metal layer. The first pluggable terminal, the second pluggable terminal, the first connecting terminal and the first metal layer are arranged on the first surface of the board body. One end of the first metal layer is electrically connected to the first pluggable terminal, and the other end is electrically connected to the first connecting terminal.

[0011] The first metal layer itself has a relatively small thickness, which is beneficial to reducing the space occupancy in the thickness direction of the circuit board.

[0012] In a possible implementation, the second metal trace further includes a second metal layer and a third metal layer. The second metal layer and the second pluggable terminal are arranged on the first surface of the board body. The second metal layer is connected to the second pluggable terminal. The third metal layer and the second connecting terminal are arranged on the second surface of the board body. The third metal layer is connected to the second connecting terminal. The second metal layer and the third metal layer are electrically connected.

[0013] The second metal layer and the third metal layer themselves have relatively small thicknesses, which is beneficial to reducing the space occupancy rate in the thickness direction of the circuit board.

[0014] In a possible implementation, the circuit board includes a via hole and a conductor. The board body is provided with the via hole. The conductor is provided in the via hole. The conductor connects the second metal layer and the third metal layer.

[0015] The structure of the conductor itself is relatively simple, so the method of using the conductor for switching is conducive to reducing the complexity of the structural design of the circuit board and reducing the difficulty of processing the circuit board.

[0016] In a possible implementation manner, a distance between the via hole and the second plug-in terminal is smaller than a distance between the via hole and the second connecting terminal.

[0017] The spacing between the via and the second plug-in terminal is relatively small, while the spacing between the via and the second connection terminal is relatively large, which is beneficial to reducing the extension size of the second metal layer and increasing the extension size of the third metal layer, thereby reducing the coplanar area of ​​the first metal routing and the second metal routing, which is beneficial to further reduce the crosstalk signal and improve the signal-to-noise ratio.

[0018] In a possible implementation manner, the length of the second metal layer is C1, and the length of the third metal layer is C2, wherein the value range of C1 / C2 is 0.01 to 0.3.

[0019] When the value of C1 / C2 is less than 0.01, the second metal layer is relatively difficult to manufacture because the extension size is relatively small. When the value of C1 / C2 is greater than 0.3, the extension size of the second metal layer 533 is relatively long, which is not conducive to reducing the crosstalk signal. Therefore, the method in which the value range of C1 / C2 in the embodiment of the present application is 0.01 to 0.3 can effectively solve the above problem.

[0020] In a possible implementation, the board body includes a plug-in end, and the first plug-in terminal and the second plug-in terminal are arranged at the plug-in end.

[0021] The plug-in and unplug ends are visible, making it easy to plug and unplug the connector from the corresponding interface of the external device.

[0022] In a possible implementation, the board body includes a wire connection end. The wire connection end is arranged in the housing. The first connection terminal and the second connection terminal are arranged at the wire connection end. The housing includes a wire through hole. The wire connection end is arranged facing the wire through hole.

[0023] In a possible implementation, the circuit board is a printed circuit board.

[0024] A second aspect of an embodiment of the present application provides a cable connector, which includes a connector and a cable.

[0025] The cable includes a first wire and a second wire, wherein the first wire is electrically connected to the first connection terminal, and the second wire is electrically connected to the second connection terminal.

[0026] In a possible implementation manner, the first wire is welded to the first connecting terminal.

[0027] The welding method is conducive to ensuring the connection stability and reliability between the first wire and the first connection terminal, and can also reduce the complexity of the connection structure between the first wire and the first connection terminal, making it easier to connect the first wire and the first connection terminal.

[0028] In a possible implementation manner, the second wire is welded to the second connecting terminal.

[0029] The welding method is conducive to ensuring the connection stability and reliability between the second wire and the second connection terminal, and at the same time can reduce the complexity of the connection structure between the second wire and the second connection terminal, thereby facilitating the connection between the second wire and the second connection terminal.

[0030] In a possible implementation manner, connectors are respectively provided at both ends of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of a usage scenario of a cable connector provided in an embodiment of the present application;

[0032] Figure 2 A schematic diagram of a partial structure of a connector provided in one embodiment of the present application;

[0033] Figure 3 A schematic diagram of a partial structure of a cable connector provided in one embodiment of the present application;

[0034] Figure 4 A schematic diagram of a partial exploded structure of a connector provided in an embodiment of the present application;

[0035] Figure 5 A schematic diagram of a partial exploded structure of a cable connector provided in an embodiment of the present application;

[0036] Figure 6A schematic diagram of a partial structure of a circuit board provided in one embodiment of the present application;

[0037] Figure 7 A schematic diagram of a partial structure of a cable connector provided in one embodiment of the present application;

[0038] Figure 8 A schematic diagram of a partial structure of a circuit board provided in one embodiment of the present application;

[0039] Fig. 9 A schematic diagram of a partial structure of a circuit board provided in another embodiment of the present application;

[0040] Fig.10 A schematic diagram of a partial structure of a circuit board provided in yet another embodiment of the present application;

[0041] Fig.11 A schematic diagram of a partial structure of a circuit board provided in one embodiment of the present application;

[0042] Fig.12 A schematic diagram of a partial cross-sectional structure of a circuit board provided in one embodiment of the present application.

[0043] Reference numerals:

[0044] 10. Cable connector;

[0045] 20. Connector;

[0046] 30. Cable; 31. First conductor; 32. Second conductor;

[0047] 40. housing; 41. first housing member; 42. second housing member;

[0048] 50. Circuit board;

[0049] 51, board body; 51a, first surface; 51b, second surface; 511, plug-in end; 512, wire connection end;

[0050] 52, first metal wiring; 521, first plug-in terminal; 522, first connection terminal; 523, first metal layer;

[0051] 53, second metal wiring; 531, second plug-in terminal; 532, second connection terminal; 533, second metal layer; 534, third metal layer;

[0052] 54. Via;

[0053] 55. Conductors;

[0054] 100. Server;

[0055] 200, switch;

[0056] 300, pull ring;

[0057] Y, width direction;

[0058] Z, thickness direction. DETAILED DESCRIPTION

[0059] The data center room is usually equipped with servers, switches and other equipment to meet the demand for data processing capabilities. Servers and switches can communicate with each other through high-speed cable connectors. Figure 1 The schematic diagram shows the usage scenario of the cable connector 10. Figure 1 As shown, when the cable connector 10 is used to connect the server 100 and the switch 200, one end of the cable connector 10 can be plugged into the corresponding interface on the backplane of the server 100, and the other end can be plugged into the corresponding interface on the backplane of the switch 200. After the cable connector 10 completes the connection, a short-distance connection can be achieved between the server 100 and the switch 200. The cable connector 10 has the characteristics of low power consumption and low latency, so that the cable connector 10 can be suitable for short-distance transmission scenarios.

[0060] Figure 2 A partial structure of the connector 20 is schematically shown. Figure 3 The partial structure of the cable connector 10 is schematically shown. Figure 2 and Figure 3 As shown, in the embodiment of the present application, the cable connector 10 may include a connector 20 and a cable 30. The connector 20 is electrically connected to the cable 30. The connector 20 can be plugged in and out of an external device. For example, the external device may be, but is not limited to, a server 100 or a switch 200.

[0061] The connector 20 may include a housing 40 and a circuit board 50. The circuit board 50 is disposed in the housing 40. The circuit board 50 is disposed inside the housing 40. The cable 30 is electrically connected to the circuit board 50. The connection structure formed by the cable 30 and the circuit board 50 may be disposed in the housing 40, so that the housing 40 can protect the connection position of the cable 30 and the circuit board 50.

[0062] In some achievable embodiments, the housing 40 may include a first housing component 41 and a second housing component 42. The first housing component 41 and the second housing component 42 are detachably connected. The first housing component 41 and the second housing component 42 may form a receiving space after being connected. A portion of the circuit board 50 may be located in the receiving space.

[0063] In some examples, the material of the first shell component 41 and the material of the second shell component 42 may both be metal materials. For example, the material of the first shell component 41 and the material of the second shell component 42 may both be, but are not limited to, steel, aluminum, or aluminum alloy.

[0064] In some achievable embodiments, the circuit board 50 includes a plug-in portion. The plug-in portion of the circuit board 50 may be in a visible state, that is, the plug-in portion of the circuit board 50 may be observed from the outside of the cable connector 10. The plug-in portion of the circuit board 50 may be plugged in and out of an external device to connect or disconnect the circuit board 50 from the external device.

[0065] In some achievable embodiments, the cable 30 may include an insulating outer layer and a conductive wire. The insulating outer layer may cover the conductive wire. The conductive wire is electrically connected to the circuit board 50.

[0066] In some achievable ways, the connector 20 may further include a pull ring 300. The pull ring 300 may be connected to the housing 40. When the connector 20 needs to be pulled out from the corresponding interface of the external device, a force may be applied to the pull ring 300 to pull the connector 20 out from the corresponding interface of the external device.

[0067] In the related art, a receiving side metal trace and a sending side metal trace are arranged on the circuit board 50 of the connector 20, so that the connector 20 can simultaneously receive data and send data. The receiving side metal trace is used to transmit the received data. The sending side metal trace is used to send data to the outside. At present, the receiving side metal trace and the sending side metal trace are both arranged on the same surface of the circuit board 50, that is, the receiving side metal trace and the sending side metal trace are coplanar. The signal shielding deviation between the receiving side metal trace and the sending side metal trace. Therefore, when the connector 20 is in use, there is a signal crosstalk problem between the receiving data transmission path and the sending data transmission path, resulting in signal integrity (SI) deviation. In order to solve this technical problem, a signal shielding cover can be provided corresponding to at least one of the receiving side metal trace and the sending side metal trace. The signal shielding cover is a conductive structure. However, the processing and manufacturing process of the signal shielding cover itself is complicated, and the assembly process between the signal shielding cover and the circuit board 50 is more and the assembly difficulty is greater, which leads to an increase in the production cost of the cable connector 10.

[0068] The connector 20 provided in the embodiment of the present application can effectively reduce crosstalk signals and improve signal integrity while achieving high-speed transmission rates. At the same time, the connector 20 provided in the embodiment of the present application does not need to be additionally provided with signal shielding structural parts, which is beneficial to the structural design of the connector 20 and reduces the number of parts used, thereby reducing the assembly process and reducing the difficulty of assembly, thereby helping to reduce production costs.

[0069] The implementation method of the cable connector 10 provided in the embodiment of the present application is described below.

[0070] Figure 4A partial exploded structure of the connector 20 is schematically shown. Figure 5 The partial exploded structure of the cable connector 10 is schematically shown. Figure 6 A partial structure of the circuit board 50 is schematically shown.

[0071] See also Figure 4 , Figure 5 and Figure 6 As shown, the cable connector 10 of the embodiment of the present application includes a connector 20 and a cable 30. The cable 30 includes two opposite ends. At least one of the two ends of the cable 30 is provided with a connector 20.

[0072] In an embodiment of the present application, the connector 20 may include a housing 40 and a circuit board 50. The circuit board 50 is disposed in the housing 40. The circuit board 50 includes a board body 51, a first metal trace 52, and a second metal trace 53. The board body 51 is a carrier of the first metal trace 52 and the second metal trace 53. The board body 51 has a thickness that meets the use requirements. In some examples, the board body 51 includes an insulating layer. The material of the insulating layer may be, but is not limited to, phenolic resin or epoxy resin. The first metal trace 52 and the second metal trace 53 are spaced apart. The first metal trace 52 and the second metal trace 53 are kept insulated from each other.

[0073] In the embodiment of the present application, the first metal trace 52 may include a first plug terminal 521. The second metal trace 53 may include a second plug terminal 531. When the cable connector 10 is electrically connected to the corresponding interface of the external device, the first plug terminal 521 of the first metal trace 52 and the second plug terminal 531 of the second metal trace 53 can both be plugged into the docking terminal on the external device. When the cable connector 10 is unplugged from the corresponding interface of the external device, the first plug terminal 521 of the first metal trace 52 and the second plug terminal 531 of the second metal trace 53 can both be separated from the docking terminal on the external device.

[0074] In the embodiment of the present application, the first metal wiring 52 may further include a first connection terminal 522. The first connection terminal 522 is spaced apart from the first plug-in terminal 521. The first connection terminal 522 is electrically connected to the first plug-in terminal 521 so that data can be transmitted between the first connection terminal 522 and the first plug-in terminal 521. The second metal wiring 53 may further include a second connection terminal 532. The second connection terminal 532 is spaced apart from the second plug-in terminal 531. The second connection terminal 532 is electrically connected to the second plug-in terminal 531 so that data can be transmitted between the second connection terminal 532 and the second plug-in terminal 531. The first connection terminal 522 of the first metal wiring 52 and the second connection terminal 532 of the second metal wiring 53 are respectively used to be electrically connected to the cable 30.

[0075] In some achievable embodiments, the first pluggable terminal 521 of the first metal trace 52 and the second pluggable terminal 531 of the second metal trace 53 can both be in a visible state, that is, the first pluggable terminal 521 and the second pluggable terminal 531 can be observed from the outside of the cable connector 10. The first connection terminal 522 of the first metal trace 52 and the second connection terminal 532 of the second metal trace 53 can both be disposed inside the housing 40.

[0076] In the embodiment of the present application, the first plug terminal 521, the second plug terminal 531 and the first connection terminal 522 are arranged on the same surface of the board body 51, and the second connection terminal 532 is arranged on the other surface of the board body 51. The first plug terminal 521, the second plug terminal 531 and the first connection terminal 522 are coplanar. The first plug terminal 521, the second plug terminal 531 and the first connection terminal 522 are not coplanar with the second connection terminal 532. Along the thickness direction Z of the circuit board 50, when observing on one side of the board body 51, the first plug terminal 521, the second plug terminal 531 and the first connection terminal 522 can be observed at the same time, and when observing on the other side of the board body 51, the second connection terminal 532 can be observed.

[0077] In some achievable embodiments, the board body 51 may include a first surface 51a and a second surface 51b disposed opposite to each other along the thickness direction Z of the circuit board 50. The first pluggable terminal 521, the second pluggable terminal 531, and the first connecting terminal 522 are all disposed on the first surface 51a of the board body 51, and the second connecting terminal 532 is disposed on the second surface 51b of the board body 51.

[0078] In some examples, the first shell member 41 and the second shell member 42 of the housing 40 are stacked along the thickness direction Z of the circuit board 50. The board body 51 may be disposed on the first shell member 41 of the housing 40. The first surface 51a of the board body 51 may face the second shell member 42, and the second surface 51b of the board body 51 may face the first shell member 41.

[0079] In the embodiment of the present application, one of the first metal trace 52 and the second metal trace 53 is a receiving side metal trace (RX), and the other is a transmitting side metal trace (TX). The receiving side metal trace is used to transmit received data. For example, data output by an external device can be transmitted through the receiving side metal trace. The transmitting side metal trace is used to send data to an external device. For example, data sent by the transmitting side metal trace can be received by an external device. Therefore, the cable connector 10 of the embodiment of the present application has the function of simultaneously receiving data and sending data.

[0080] In some achievable embodiments, the first metal trace 52 may be a transmitting-side metal trace, and the second metal trace 53 may be a receiving-side metal trace.

[0081] Figure 7 The partial structure of the cable connector 10 is schematically shown. Figure 6 and Figure 7 As shown, in the embodiment of the present application, the cable 30 may include a first wire 31 and a second wire 32. The first wire 31 and the second wire 32 are independently arranged and insulated from each other. The cable 30 can transmit corresponding data through the first wire 31 and the second wire 32. The first wire 31 is electrically connected to the first connection terminal 522. The second wire 32 is electrically connected to the second connection terminal 532. Along the thickness direction Z of the circuit board 50, the connection structure formed by the first wire 31 and the first connection terminal 522 is located on one surface of the board body 51, and the connection structure formed by the second wire 32 and the second connection terminal 532 is located on the other surface of the board body 51. Along the thickness direction Z of the circuit board 50, the end of the first wire 31 and the end of the second wire 32 are respectively located on opposite sides of the board body 51.

[0082] In the embodiment of the present application, the number of the first wires 31 and the second wires 32 is not specifically limited. The number of the first wires 31 can be set in a one-to-one correspondence with the number of the first connection terminals 522. The number of the second wires 32 can be set in a one-to-one correspondence with the number of the second connection terminals 532. The core material of the first wire 31 and the second wire 32 can be, but is not limited to, copper or copper alloy.

[0083] In the connector 20 of the embodiment of the present application, the circuit board 50 includes a board body 51, a first connection terminal 522 and a second connection terminal 532. The first connection terminal 522 and the second connection terminal 532 are respectively located on different surfaces of the board body 51, so that the signal isolation between the first connection terminal 522 and the second connection terminal 532 can be achieved through the board body 51, which is conducive to reducing crosstalk signals. Therefore, when the connector 20 of the embodiment of the present application is in use, the possibility of signal crosstalk problems between the receiving data transmission path and the sending data transmission path can be effectively reduced, the signal integrity (SI) can be improved, and the signal-to-noise ratio can be improved, so as to facilitate the connector 20 to achieve a higher transmission rate. In addition, the connector 20 of the embodiment of the present application itself does not need to set up additional signal shielding structural parts to effectively reduce crosstalk signals, so that the structure of the connector 20 itself is relatively simple, which is conducive to the structural design of the connector 20 and reduces the number of parts used, thereby reducing the assembly process and reducing the difficulty of assembly, which is conducive to reducing production costs.

[0084] In the embodiment of the present application, the connector 20 may be a small form-factor pluggable transceiver (SFP).

[0085] In some achievable embodiments, the number of the first metal routing lines 52 and the number of the second metal routing lines 53 are both more than two. The embodiment of the present application does not specifically limit the number of the first metal routing lines 52 and the number of the second metal routing lines 53.

[0086] In some achievable embodiments, the first plug-in terminal 521 and the second plug-in terminal 531 may be conductive metal sheets. The first connection terminal 522 and the second connection terminal 532 may be conductive metal sheets.

[0087] In some achievable ways, Figure 8 The partial structure of the circuit board 50 is schematically shown. Figure 8 As shown, along the thickness direction Z of the circuit board 50, the orthographic projection of the first connection terminal 522 does not overlap with the orthographic projection of the second connection terminal 532. Along the width direction Y of the circuit board 50, the first connection terminal 522 and the second connection terminal 532 are staggered. The width direction Y of the circuit board 50 is perpendicular to the thickness direction Z of the circuit board 50. The spacing between the first connection terminal 522 and the second connection terminal 532 is large, which is conducive to further reducing the crosstalk signal.

[0088] For some examples, see Figure 8 As shown, the number of the first connection terminals 522 and the number of the second connection terminals 532 are both more than two, and the embodiment of the present application does not specifically limit the number of the first connection terminals 522 and the number of the second connection terminals 532. The orthographic projections of all the first connection terminals 522 form a first projection area. The orthographic projections of all the second connection terminals 532 form a second projection area. Along the width direction Y of the circuit board 50, the first projection area is located on one side of the second projection area. Along the width direction Y of the circuit board 50, a relatively large spacing can be maintained between the first connection terminal 522 and the second connection terminal 532, so that the distance between the first connection terminal 522 and the second connection terminal 532 is relatively far, which is conducive to reducing the possibility of crosstalk signals between the first connection terminal 522 and the second connection terminal 532.

[0089] In some examples, Fig. 9 The partial structure of the circuit board 50 is schematically shown. Fig. 9As shown, the number of the first connection terminals 522 and the number of the second connection terminals 532 are both more than two. Along the width direction Y of the circuit board 50, the orthographic projections of the first connection terminals 522 and the orthographic projections of the second connection terminals 532 can be alternately arranged. Along the width direction Y of the circuit board 50, the area jointly occupied by the first connection terminals 522 and the second connection terminals 532 can be relatively small, which is conducive to reducing the width of the circuit board 50, thereby saving the internal space of the housing 40.

[0090] In some achievable ways, Fig.10 The partial structure of the circuit board 50 is schematically shown. Fig.10 As shown, along the thickness direction Z of the circuit board 50, the orthographic projection of the first connection terminal 522 and the orthographic projection of the second connection terminal 532 have an overlapping area. In the width direction Y of the circuit board 50, the area jointly occupied by the first connection terminal 522 and the second connection terminal 532 is relatively small, which is conducive to reducing the width of the circuit board 50, thereby saving the internal space of the housing 40.

[0091] In some examples, along the thickness direction Z of the circuit board 50 , the orthographic projection of the first connection terminal 522 and the orthographic projection of the second connection terminal 532 overlap with each other.

[0092] In the embodiment of the present application, the first wire 31 of the cable 30 can be welded to the first connection terminal 522. The welding method is conducive to ensuring the connection stability and reliability between the first wire 31 and the first connection terminal 522, and at the same time can reduce the complexity of the connection structure between the first wire 31 and the first connection terminal 522, so as to facilitate the connection between the first wire 31 and the first connection terminal 522.

[0093] A portion of the first wire 31 may be located in the housing 40. The portion of the first wire 31 located in the housing 40 has an exposed metal wire. The exposed metal wire may be welded to the first connection terminal 522. The housing 40 may provide protection for the solder joint formed by the first wire 31 and the first connection terminal 522, effectively avoiding the problem of the solder joint opening caused by the first wire 31 and the first connection terminal 522 being impacted by external force.

[0094] In the embodiment of the present application, the second wire 32 of the cable 30 can be welded to the second connection terminal 532. The welding method is conducive to ensuring the connection stability and reliability between the second wire 32 and the second connection terminal 532, and at the same time can reduce the complexity of the connection structure between the second wire 32 and the second connection terminal 532, so as to facilitate the connection between the second wire 32 and the second connection terminal 532.

[0095] A portion of the second wire 32 may be located in the housing 40. The portion of the second wire 32 located in the housing 40 has an exposed metal wire. The exposed metal wire may be welded to the second connection terminal 532. The housing 40 may provide protection for the welding spot formed by welding the second wire 32 and the second connection terminal 532, effectively avoiding the problem of the welding spot opening caused by the second wire 32 and the second connection terminal 532 being impacted by external force.

[0096] Fig.11 The partial structure of the circuit board 50 is schematically shown. Fig.11 As shown, in the embodiment of the present application, the first metal trace 52 may further include a first metal layer 523. The first metal layer 523 may connect the first plug terminal 521 and the first connection terminal 522 so that the first plug terminal 521 and the first connection terminal 522 can realize data transmission. The first plug terminal 521, the second plug terminal 531, the first connection terminal 522 and the first metal layer 523 are arranged on the same surface of the board body 51, that is, the first plug terminal 521, the second plug terminal 531, the first connection terminal 522 and the first metal layer 523 are coplanar. One end of the first metal layer 523 is electrically connected to the first plug terminal 521, and the other end is electrically connected to the first connection terminal 522. The first metal layer 523 itself has a relatively small thickness, which is conducive to reducing the space occupancy rate in the thickness direction of the circuit board 50.

[0097] In some examples, the first plug-in terminal 521, the first metal layer 523 and the first connection terminal 522 can be an integrally formed structure, so that the first metal wiring 52 extends continuously, ensuring the structural integrity of the first metal wiring 52. On the one hand, it is beneficial to ensure that the first metal wiring 52 has a small transmission signal loss; on the other hand, it is beneficial to reduce the difficulty of processing and manufacturing the first metal wiring 52.

[0098] In the embodiment of the present application, the first metal trace 52 may further include a second metal layer 533 and a third metal layer 534. The second metal layer 533 and the third metal layer 534 are electrically connected. The second plug-in terminal 531 and the second connection terminal 532 may be connected through the second metal layer 533 and the third metal layer 534, so that the second plug-in terminal 531 and the second connection terminal 532 can realize data transmission. The second metal layer 533 and the second plug-in terminal 531 are arranged on the same surface of the board body 51, that is, the second metal layer 533 and the second plug-in terminal 531 are coplanar. The second metal layer 533 is electrically connected to the second plug-in terminal 531. The third metal layer 534 and the second connection terminal 532 are arranged on the same surface of the board body 51, that is, the third metal layer 534 and the second connection terminal 532 are coplanar. The third metal layer 534 is electrically connected to the second connection terminal 532. The second metal layer 533 and the third metal layer 534 themselves have a relatively small thickness, which is conducive to reducing the space occupancy in the thickness direction of the circuit board 50.

[0099] The first metal layer 523 and the second metal layer 533 are arranged on the same surface of the board body 51, that is, the first metal layer 523 and the second metal layer 533 are coplanar. The first metal layer 523 and the third metal layer 534 are arranged on different surfaces of the board body 51, that is, the first metal layer 523 and the third metal layer 534 are not coplanar. The first metal layer 523 and the third metal layer 534 can transmit different data respectively. The board body 51 can isolate the signals between the first metal layer 523 and the third metal layer 534, which is conducive to further reducing the crosstalk signal and improving the signal-to-noise ratio.

[0100] In some examples, along the thickness direction Z of the circuit board 50 , the orthographic projection of the first metal layer 523 does not overlap with the orthographic projection of the third metal layer 534 .

[0101] In some examples, the second plug-in terminal 531 and the second metal layer 533 may be an integrally formed structure. The third metal layer 534 and the second connection terminal 532 may be an integrally formed structure.

[0102] In some examples, Fig.12 The partial cross-sectional structure of the circuit board 50 is schematically shown. Fig.12 As shown, the circuit board 50 includes a via 54 and a conductor 55. The board body 51 is provided with the via 54. Along the thickness direction Z of the circuit board 50, the via 54 penetrates two opposite surfaces of the board body 51. The conductor 55 is provided in the via 54. The conductor 55 electrically connects the second metal layer 533 and the third metal layer 534. The second metal layer 533 and the third metal layer 534 are switched through the conductor 55. The conductor 55 can be a metal plating layer.

[0103] The structure of the conductor 55 itself is relatively simple, so the method of using the conductor 55 for switching is conducive to reducing the complexity of the structural design of the circuit board 50 and reducing the difficulty of processing the circuit board 50.

[0104] In some examples, the spacing between the via 54 and the second plug terminal 531 is smaller than the spacing between the via 54 and the second connection terminal 532. The spacing between the via 54 and the second plug terminal 531 is relatively small, while the spacing between the via 54 and the second connection terminal 532 is relatively large, which is beneficial to reducing the extension size of the second metal layer 533 and increasing the extension size of the third metal layer 534, thereby reducing the coplanar area of ​​the first metal wiring 52 and the second metal wiring 53, which is beneficial to further reduce the crosstalk signal and improve the signal-to-noise ratio.

[0105] In some examples, the length of the second metal layer 533 is C1, and the length of the third metal layer 534 is C2, wherein the value range of C1 / C2 is 0.01 to 0.3. Exemplarily, the value of C1 / C2 can be 0.05, 0.1 or 0.2. When the value of C1 / C2 is less than 0.01, since the extension dimension of the second metal layer 533 is relatively small, the processing and manufacturing difficulty of the second metal layer 533 is relatively large. When the value of C1 / C2 is greater than 0.3, the extension dimension of the second metal layer 533 is relatively long, which is not conducive to reducing the crosstalk signal. Therefore, the method in which the value range of C1 / C2 in the embodiment of the present application is 0.01 to 0.3 can effectively solve the above problems.

[0106] In the present application examples, see Fig.11 As shown, the board body 51 may include a plug-in end 511. The end of the board body 51 away from the cable 30 forms the plug-in end 511. The plug-in end 511 is in a visible state, that is, the plug-in end 511 can be observed from the outside of the cable connector 10, so as to facilitate the plug-in and unplugging of the connector 20 and the corresponding interface of the external device. The first plug-in terminal 521 and the second plug-in terminal 531 are arranged at the plug-in end 511.

[0107] In some examples, along the thickness direction Z of the circuit board 50 , a surface of the plug-in end facing the second shell component 42 may be provided with a first plug-in terminal 521 and a second plug-in terminal 531 .

[0108] In the embodiment of the present application, the board body 51 may include a wire connection end 512. The end of the board body 51 close to the cable 30 forms the wire connection end 512. The wire connection end 512 is disposed in the housing 40. The wire connection end 512 may be in an invisible state. The first connection terminal 522 and the second connection terminal 532 are disposed at the wire connection end 512. The housing 40 may include a wire through hole. The wire connection end 512 is disposed facing the wire through hole. The first wire 31 and the second wire 32 are passed through the wire through hole.

[0109] In some examples, along the thickness direction Z of the circuit board 50, the second connection terminal 532 is provided on the surface of the wire connection end 512 facing the first shell component 41. The first connection terminal 522 is provided on the surface of the wire connection end 512 facing the second shell component 42. The end of the first wire 31 welded to the first connection terminal 522 is located on the side of the wire connection end 512 facing the second shell component 42. The end of the second wire 32 welded to the second connection terminal 532 is located on the side of the wire connection end 512 facing the first shell component 41.

[0110] In some examples, a relief groove is provided on the surface of the first shell member 41 facing the circuit board 50. The second wire 32 may be located in the relief groove, thereby preventing the circuit board 50 and the first shell member 41 from excessively squeezing the second wire 32.

[0111] In some examples, an insulating sheet is disposed on the surface of the first shell member 41 facing the circuit board 50. The second wire 32 and the circuit board 50 can be insulated from the first shell member 41 by the insulating sheet.

[0112] In some achievable embodiments, connectors 20 are provided at both ends of the cable 30. The connectors 20 provided at both ends of the cable 30 can be electrically connected to corresponding external devices. For example, the connector 20 provided at one end of the cable 30 can be plugged into the server 100, and the connector 20 provided at the other end can be plugged into the switch 200. The embodiment of the present application does not specifically limit the specific type of the external device.

[0113] In some achievable embodiments, a connector 20 is provided at one end of the cable 30, and an optical module is provided at the other end. Alternatively, a connector 20 is provided at one end of the cable 30, and a backplane connector is provided at the other end. Alternatively, a connector 20 is provided at one end of the cable 30, and a CEM (card electromechanical) connector is provided at the other end.

[0114] In some achievable embodiments, the circuit board 50 may be a printed circuit board (PCB). The first metal trace 52 and the second metal trace 53 may be patterned layer structures.

[0115] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0116] The embodiments of the present application do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0117] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, systems, products or devices.

[0118] The term "plurality" in this article refers to two or more than two. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship; in a formula, the character " / " indicates that the previous and next associated objects are in a "division" relationship.

[0119] It should be understood that the various numerical numbers involved in the embodiments of the present application are only used for the convenience of description and are not used to limit the scope of the embodiments of the present application.

[0120] It can be understood that in the embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Claims

1. A connector for a cable connector, characterized in that: The connector comprises: A housing and a circuit board, wherein the circuit board is arranged inside the housing; The circuit board comprises a board body, a first metal trace and a second metal trace, the first metal trace comprises a first plug-in terminal and a first connecting terminal which are electrically connected, the second metal trace comprises a second plug-in terminal and a second connecting terminal which are electrically connected, the first plug-in terminal, the second plug-in terminal and the first connecting terminal are arranged on a first surface of the board body, the second connecting terminal is arranged on a second surface of the board body, and the first surface and the second surface are arranged opposite to each other; Among them, one of the first metal routing and the second metal routing is a receiving side metal routing, and the other is a transmitting side metal routing.

2. The connector according to claim 1, characterized in that: Along the thickness direction of the circuit board, the orthographic projection of the first connecting terminal does not overlap with the orthographic projection of the second connecting terminal; Alternatively, along the thickness direction of the circuit board, the orthographic projection of the first connection terminal and the orthographic projection of the second connection terminal have an overlapping area.

3. The connector according to claim 1, characterized in that: The first metal trace also includes a first metal layer. The first pluggable terminal, the second pluggable terminal, the first connecting terminal and the first metal layer are arranged on the first surface of the board body. One end of the first metal layer is electrically connected to the first pluggable terminal, and the other end is electrically connected to the first connecting terminal.

4. The connector according to claim 1, characterized in that: The second metal trace also includes a second metal layer and a third metal layer, the second metal layer and the second plug-in terminal are arranged on the first surface of the board body, the second metal layer is connected to the second plug-in terminal, the third metal layer and the second connecting terminal are arranged on the second surface of the board body, the third metal layer is connected to the second connecting terminal, and the second metal layer and the third metal layer are electrically connected.

5. The connector according to claim 4, characterized in that: The circuit board includes a via hole and a conductor. The board body is provided with the via hole. The conductor is provided in the via hole. The conductor connects the second metal layer and the third metal layer.

6. The connector according to claim 5, characterized in that: The distance between the via hole and the second plug-in terminal is smaller than the distance between the via hole and the second connecting terminal.

7. The connector according to claim 6, characterized in that: The length of the second metal layer is C1, and the length of the third metal layer is C2, wherein the value range of C1 / C2 is 0.01 to 0.

3.

8. The connector according to any one of claims 1 to 7, characterized in that: The board body includes a plug-in end, and the first plug-in terminal and the second plug-in terminal are arranged on the plug-in end.

9. The connector according to any one of claims 1 to 7, characterized in that: The board body includes a wire connection end, the wire connection end is arranged in the shell, the first connection terminal and the second connection terminal are arranged at the wire connection end, the shell includes a wire through hole, and the wire connection end is arranged facing the wire through hole.

10. A cable connector, characterized in that: include: The connector according to any one of claims 1 to 9; The cable includes a first conductive wire and a second conductive wire, wherein the first conductive wire is electrically connected to the first connecting terminal, and the second conductive wire is electrically connected to the second connecting terminal.

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