Connector and communication equipment

Abstract

The utility model provides a connector and communication equipment. The connector comprises a shell and an electric connection module. When the plug-in module is plugged into the connector, the plug-in module is electrically connected with the other end of the first signal transmission terminal and the other end of the second signal transmission terminal in the electric connection module. In the electric connection module, a first cable and a second cable are electrically connected with one end of a first signal transmission terminal and one end of a second signal transmission terminal respectively, and the first cable and the second cable penetrate out of the shell through a first through hole set and a second through hole set formed in the second end of the shell respectively. After the first cable and the second cable penetrate out of the shell of the connector, the other end of the first cable and the other end of the second cable can extend to the position, close to the data processing module, on the circuit board and are electrically connected with the data processing module through the circuit board. Therefore, the insertion loss during data transmission is effectively reduced, the wiring complexity of the circuit board is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a connector and communication equipment. Background Art

[0002] Optical communication technology has become a low-cost and mass-produced technology, widely used in applications such as switch interconnection and server interface. In the application of optical communication technology, pluggable plug-in modules, such as optical modules, are needed to connect the optical cable carrying data to communication equipment such as switches.

[0003] In the prior art, a communication device usually has multiple connectors, and the connectors can be connected to the data processing module (e.g., chip) in the communication device for communication. Each connector has an input and output interface, and the optical module is pluggable on the interface, so that the optical module is connected to the connector, thereby realizing signal transmission between the optical module and the data processing module in the communication device. Specifically, the connector is fixed and electrically connected to the circuit board of the communication device by means of fisheye crimping or surface mounting, and the data processing module is fixed and electrically connected to the circuit board, and the connector and the data processing module communicate by signal transmission through the circuit board.

[0004] However, in information and communication technology systems (especially data center systems), the amount of data exchange processing is increasing, the data transmission rate is constantly increasing, and the way the connector and the data processing module transmit signals through the circuit board makes the insertion loss of the circuit board in the system account for an increasing proportion. In order to meet the signal integrity requirements, the system's requirements for the insertion loss of the passive link are further improved. In addition, the circuit board needs to arrange the wiring between the connector and the data processing module to ensure the communication between the two, which increases the complexity of the wiring on the circuit board, thereby increasing the production cost of the circuit board.

[0005] It can be seen that in the communication equipment of the prior art, the connector and the data processing module communicate by signal transmission through the circuit board. The insertion loss of the passive link is large during data transmission, and the wiring on the circuit board is highly complex and the production cost is high. Utility Model Content

[0006] The embodiments of the present application provide a connector and a communication device, which solve the problems in the prior art of communication devices in which the connector and the data processing module communicate by signal transmission through a circuit board, the large insertion loss of the passive link during data transmission, the high complexity of the wiring on the circuit board, and the high production cost.

[0007] The first aspect of the embodiment of the present application provides a connector, comprising a housing and an electrical connection module, wherein the electrical connection module is arranged inside the housing, and the housing is provided with an opening at a first end in a first direction, wherein the opening is used for inserting or removing the plug-in module from the connector. The first direction is the plug-in and pull-out direction of the plug-in module and the connector.

[0008] The electrical connection module includes at least one first signal transmission part and at least one second signal transmission part. The first signal transmission part includes two first signal transmission terminals arranged at intervals, and a first cable, one end of the first cable is electrically connected to one end of the two first signal transmission terminals, and the other end extends out of the second end of the housing in the first direction.

[0009] The second signal transmission portion includes a single second signal transmission terminal and a second cable, one end of the second cable is electrically connected to one end of the second signal transmission terminal, and the other end of the second cable extends out of the second end of the housing.

[0010] In addition, a first through hole group and a second through hole group are provided at the second end of the shell. The first through hole group includes: at least one first through hole through which the first cable in the power supply connection module passes; the second through hole group includes: at least one second through hole through which the second cable in the power supply connection module passes.

[0011] In the present application, after the plug-in module is plugged into the connector, the plug-in module is electrically connected to the other end of the first signal transmission terminal and the other end of the second signal transmission terminal in the electrical connection module, and the first cable and the second cable are electrically connected to one end of the two first signal transmission terminals and one end of the second signal transmission terminals, respectively, and the first cable and the second cable pass through the shell through the first through hole group and the second through hole group opened on the second end of the shell. After the first cable and the second cable pass through the shell of the connector, the other end of the first cable and the other end of the second cable can extend to the position near the data processing module on the circuit board (or it can be understood that the distance between the position electrically connected to the first cable and the second cable on the circuit board and the data processing module is shorter than the distance between the connector and the data processing module), and are electrically connected to the data processing module through the circuit board. Or it can be understood that the connector communicates with the data processing module in the communication device through the first cable and the second cable passing through the first through hole group and the second through hole group. Compared with the circuit board material, the cable material has a smaller insertion loss during data transmission, which effectively improves the integrity of the signal during data transmission. In addition, there is no need to arrange the wiring between the connector and the data processing module, which reduces the complexity of the wiring of the circuit board, thereby reducing the production cost.

[0012] Therefore, the connector provided by the embodiments of the present application communicates with the data processing module in the communication device through the first cable and the second cable, which can effectively reduce the insertion loss during data transmission, reduce the complexity of the cable layout on the circuit board, and reduce the production cost. It solves the problems in the prior art that when the connector and the data processing module communicate through signal transmission on the circuit board, the insertion loss of the passive link is large during data transmission, the complexity of the cable layout on the circuit board is high, and the production cost is high.

[0013] In a possible implementation manner, the electrical connection module includes a plurality of first signal transmission parts (or it can be understood that the first cable has multiple strands), there are a plurality of first through holes, and the first cables of each first signal transmission part pass through different first through holes. The electrical connection module includes a plurality of second signal transmission parts (or it can be understood that the second cable has multiple strands), and at least two second cables are passed through the second through hole.

[0014] Through such a design, only one first cable passes through each first through hole, effectively avoiding the adverse effects of excessive bending and scratching of the first cable on signal transmission, and ensuring the high-speed signal transmission performance of the first cable. Multiple second cables pass through the second through hole, improving the processing efficiency when the second cable passes through the housing and reducing the production cost.

[0015] In a possible implementation manner, 4 to 7 second cables are passed through the second through hole. Through such a design, the processing efficiency when the second cable passes through the housing is ensured, and the deformation amount of the second cable is small during the process of extending towards the second through hole, ensuring the connection reliability between the second cable and the second signal transmission terminal; further, the number of gaps between the second cables is appropriate, ensuring the shielding effect of the connector.

[0016] In a possible implementation manner, the second through hole group includes a plurality of second through holes, and at least two second cables are passed through each second through hole. Through such a design, multiple second cables are passed through each second through hole, further improving the shielding effect of the connector and the processing efficiency when the second cable passes through the housing.

[0017] In a possible implementation manner, the first through hole group is arranged in a first area at the second end of the housing, the second through hole group is arranged in a second area at the second end of the housing, and the second area is located on one side of the first area in the second direction. Wherein, the second direction is perpendicular to the first direction.

[0018] In a possible implementation manner, the gap between the outer surface of the first cable and the wall surface of the first through hole is s1, 0 < s1 ≤ 0.8 mm; the gap between the outer surface of the second cable and the wall surface of the second through hole is s2, 0 < s2 ≤ 0.8 mm.

[0019] With such a design, a reasonable gap margin is provided between the outer surface of the first cable and the wall of the first through hole, and between the outer surface of the second cable and the wall of the second through hole. While ensuring the shielding effect of the connector, it is convenient for the first cable and the second cable to pass through the first through hole and the second through hole respectively, thereby effectively improving the processing efficiency and reducing the production cost.

[0020] In a possible implementation manner, the wall surface of the first through hole includes a plane and / or an arcuate surface. When the wall surface of the first through hole includes a plane, a rounded corner is provided between the plane and an adjacent surface.

[0021] The wall surface of the second through hole includes a plane and / or an arc-shaped surface. When the wall surface of the second through hole includes a plane, a rounded corner is formed between the plane and an adjacent surface.

[0022] With such a design, arc surface transition is adopted between adjacent walls of the first through hole and adjacent walls of the second through hole, which effectively prevents the first cable and the second cable from being scratched and causing adverse effects on signal transmission, thereby improving the reliability of data signal transmission.

[0023] In a possible implementation, the housing includes a housing body and a rear cover, and one end of the housing body along a first direction is fixedly connected to the rear cover. The other end of the housing body constitutes a first end of the housing, the rear cover constitutes a second end of the housing, and the housing is configured as a shielding structure. When the connector includes a fastening structure and a locking structure, the locking structure is configured on the rear cover.

[0024] The shell also includes a fastening structure and a locking structure. The fastening structure is arranged on the shell body. The fastening structure is used to fix the shell on a mounting component. The shell has a mounting surface facing the mounting component.

[0025] The locking structure is arranged on the outer end surface of the rear cover, and is used to press the mounting surface of the housing against the surface of the mounting component facing the housing in a third direction, wherein the third direction is perpendicular to the first direction and perpendicular to the mounting surface of the housing.

[0026] With such a design, the connector locks the mounting surface of the housing to the surface of the mounting component facing the housing through the locking structure, reducing the distance between the mounting surface of the housing and the surface of the mounting component, making it less likely for the connector to loosen in harsh scenarios such as falling, thereby improving the connection reliability between the connector and the mounting component. In addition, the locking structure is provided on the back cover, reducing the size of the connector in the second direction, which is conducive to improving the layout of multiple connectors in the communication device.

[0027] In a possible implementation, the locking structure includes a locking seat, which is fastened to the mounting component through a fastener penetrating the locking seat, and the mounting surface of the housing can be pressed against the surface of the mounting component. This design improves the connection reliability between the connector and the mounting component.

[0028] In one possible implementation, the fastening structure includes a plurality of crimping parts, which are spaced apart on a plane perpendicular to a third direction, and each crimping part includes a crimping body and a shoulder structure, the crimping body is connected to the shell body through the shoulder structure, and the shoulder structure protrudes from the outer peripheral surface of the crimping body; wherein, in each crimping part, the crimping body is inserted into the interior of the mounting component, and the portion of the shoulder structure protruding from the crimping body has a contact surface, and the contact surface abuts against the surface of the mounting component facing the outer shell; the contact surfaces of the shoulder structures in the plurality of crimping parts constitute the mounting surface of the outer shell.

[0029] In a possible implementation, the first cable includes two paired signal cores, and the two signal cores of the first cable in the first signal transmission portion are electrically connected to two first signal transmission terminals, respectively.

[0030] The second cable includes a single signal core, and the signal core of the second cable in the second signal transmission portion is electrically connected to the single second signal transmission terminal.

[0031] The second aspect of an embodiment of the present application further provides a communication device, including a circuit board, a data processing module, and the connector provided by the above-mentioned first aspect and any possible implementation method, and also includes an additional connector.

[0032] The additional connector and the data processing module are respectively fixed and electrically connected to the circuit board, so that the additional connector and the data processing module are electrically connected through the circuit board.

[0033] The other end of the first cable and the other end of the second cable are both electrically connected to the additional connector, so that the first signal transmission part of the connector is electrically connected to the data processing module through the first cable and the additional connector in sequence, and the second signal transmission part is electrically connected to the data processing module through the second cable and the additional connector in sequence.

[0034] By adopting the above scheme, the connector in the communication device is electrically connected to the additional connector through the first cable and the second cable, and then communicates with the data processing module through the additional connector, effectively reducing the insertion loss during data transmission, as well as reducing the wiring complexity of the circuit board and reducing production costs.

[0035] In a possible implementation, the additional connector is located between the connector and the data processing module on a plane perpendicular to the thickness direction of the circuit board.

[0036] Through such a design, the lengths of the first cable and the second cable required between the connector and the additional connector are relatively short, thereby further reducing the insertion loss and facilitating the reduction of production costs.

[0037] In a possible implementation, the communication device further includes a mounting component and a fastener. When the connector includes a locking structure, and the locking structure includes a locking seat, a locking portion is provided on the mounting component, and the fastener penetrates the locking seat and is fastened in the locking portion of the mounting component. This design improves the connection reliability between the connector and the mounting component.

[0038] In one possible implementation, the locking seat is provided with a threaded hole, the locking part is also provided with a threaded hole, the fastener is provided with threads, and the fastener passes through the threaded hole of the locking seat and the threaded hole of the locking part in sequence, and the mounting surface of the shell is pressed against the surface of the mounting component through the cooperation of the threaded structure.

[0039] By adopting the above solution, the connector and the mounting component are connected by threads to lock the connector on the mounting component, which has a simple structure and low manufacturing cost.

[0040] In a possible implementation, the communication device includes a plurality of connectors, and when the connectors include back covers, the back covers of at least two connectors are configured as an integrated structure.

[0041] Through such a design, multiple connectors share one rear cover, which reduces the process of assembling the multiple rear covers and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the signal transmission principle between the communication device and the plug-in module in the prior art;

[0043] Figure 2a This is a schematic diagram of the structure of a communication device according to an embodiment of the present application;

[0044] Figure 2b This is a schematic diagram of the signal transmission principle between the communication device and the plug-in module according to the embodiment of the present application;

[0045] Figure 3 This is a schematic diagram of the connection principle between the connector and the plug-in module according to the embodiment of the present application;

[0046] Figure 4 This is a schematic diagram of the connection between the connector and the mounting component in the communication device of the embodiment of the present application;

[0047] Figure 5 This is a schematic diagram of the structure of the connector according to the embodiment of the present application;

[0048] Figure 6 This is a schematic diagram of the exploded structure of the connector according to an embodiment of the present application;

[0049] Figure 7 for Figure 6 A partial enlarged view of part A;

[0050] Figure 8aA schematic diagram of a partial structure of a connector and a mounting component in a communication device according to an embodiment of the present application from another perspective;

[0051] Figure 8b This is a schematic diagram of the connection principle between the connector and the mounting component in the communication device of the embodiment of the present application;

[0052] Fig. 9 This is a schematic diagram of the exploded structure of the electrical connection module in the connector of the embodiment of the present application, wherein the first cable and the second cable are inserted through the back cover;

[0053] Fig.10a This is a schematic diagram of the structure of the electrical connection module in the connector of the embodiment of the present application, wherein the first cable and the second cable are passed through the back cover;

[0054] Fig.10b This is a schematic diagram of the connection principle between the first signal transmission part and the second signal transmission part and the plug-in module in the connector of the embodiment of the present application;

[0055] Fig.11a is a schematic cross-sectional view of a first cable in a connector according to an embodiment of the present application;

[0056] Fig.11b is a schematic cross-sectional view of a second cable in the connector according to an embodiment of the present application;

[0057] Fig.12 This is a schematic diagram of the connection between the signal transmission terminal of the electrical connection module and the cable and the plug-in module in the connector of the embodiment of the present application;

[0058] Fig.13 This is a schematic diagram of the structure of the rear cover in the connector of the embodiment of the present application;

[0059] Fig.14 This is a schematic diagram showing another arrangement of the first through hole and the second through hole in the connector of the embodiment of the present application;

[0060] Fig.15 This is a schematic diagram of another arrangement of the first through hole and the second through hole in the connector of the embodiment of the present application;

[0061] Fig.16a A schematic diagram of the opening shapes of the first through hole and the second through hole in the connector of the embodiment of the present application;

[0062] Fig.16b A schematic diagram of another opening shape of the first through hole or the second through hole in the connector of the embodiment of the present application;

[0063] Fig.16c A schematic diagram of another opening shape of the first through hole or the second through hole in the connector of the embodiment of the present application;

[0064] Fig.17It is a schematic diagram of the processing principle of crimping and fixing the housing to the circuit board in the communication device in the embodiment of the present application.

[0065] Description of reference numerals:

[0066] Some solutions:

[0067] 11', optical module; 2', communication device; 22', circuit board; 24', data processing module; 3', connector.

[0068] This application:

[0069] 1. Plug-in module; 11. Optical module; 12. Sub-circuit board; 13. Signal transmission terminal;

[0070] 2. Communication equipment; 20. Mounting component; 20A. Locking portion; 21. Housing; 22. Circuit board; 23. Additional connector; 24. Data processing module; 26. Fastener;

[0071] 3. Connector; 31. Heat dissipation module;

[0072] 4. Shell; 41. Shell body; 42. Mounting surface; 43. Fastening structure; 44. Crimping piece; 44A. Crimping body; 44B. Shoulder structure; 44C. Abutment surface; 45. First end; 46. Second end;

[0073] 5. rear cover; 51. first through hole group; 52. first through hole; 53. second through hole group; 54. second through hole; 55. locking structure; 56. locking seat;

[0074] 6. Electrical connection module; 62. First signal transmission part; 63. First signal transmission terminal; 65. Second signal transmission part; 66. Second signal transmission terminal; 67. Contact part; 68. Retaining member; 69. Fixed shell; 691. Through slot; 692. First end; 693. Second end;

[0075] 7. Cable; 71. First cable; 72. Second cable; 73. Signal core; 74. Inner insulation layer; 75. Shielding layer; 76. Outer insulation layer;

[0076] 80. Crimping machine; 81. Crimping tool; 82. Workbench;

[0077] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0078] The following specific embodiments illustrate the implementation of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Although the description of the present application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to the implementation. On the contrary, the purpose of introducing the application in conjunction with the implementation is to cover other options or modifications that may extend based on the claims of the present application. In order to provide a deep understanding of the present application, the following description will include many specific details. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0079] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0080] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. The terms "multiple", "multiple roots" and other quantifiers indicate quantities of two or more.

[0081] In the description of this 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, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0082] In the description of the present application, it should be understood that "electrical connection" in the present application can be understood as physical contact and electrical conduction between components; it can also be understood as a form in which different components in a circuit structure are connected through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals.

[0083] In the description of the present application, it should be noted that the mutual perpendicularity in the present application is not absolute perpendicularity, and the approximate perpendicularity caused by processing errors and assembly errors (for example, the angle between the two structural features is 89.9°) is also within the scope of the mutual perpendicularity in the present application. The mutual parallelism in the present application is also not absolute parallelism, and the approximate parallelism caused by processing errors and assembly errors (for example, the angle between the two structural features is 0.1°) is also within the scope of the mutual parallelism in the present application. The present application does not make specific limitations on this.

[0084] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0085] See also Figure 1 , Figure 1 The figure is a schematic diagram of the signal transmission principle between the communication device and the plug-in module in the prior art.

[0086] Optical communication technology has become a low-cost and mass-produced technology, widely used in applications such as switch interconnection and server interface. In the application of optical communication technology, pluggable plug-in modules, such as optical modules, are needed to connect the optical cable carrying data to communication equipment such as switches.

[0087] In the prior art, such as Figure 1 As shown, the communication device 2' is usually provided with a plurality of connectors 3', and the connectors 3' can be connected to the data processing module 24' in the communication device 2' for communication. Each connector 3' has an input and output interface, and the optical module 11' is pluggably arranged on the interface, so that the optical module 11' is connected to the connector 3', thereby realizing the signal transmission between the optical module 11' and the data processing module 24'. Specifically, the connector 3' is fixed and electrically connected to the circuit board 22' of the communication device 2' by means of fisheye crimping or surface mounting, and the data processing module 24' is fixed and electrically connected to the circuit board 22', and the connector 3' and the data processing module 24' communicate and transmit signals through the circuit board 22'.

[0088] However, in information and communication technology systems (especially data center systems), the amount of data exchange processing is increasing, the data transmission rate is constantly increasing, and the way the connector and the data processing module transmit signals through the circuit board makes the insertion loss of the circuit board in the system account for an increasing proportion. In order to meet the signal integrity requirements, the system's requirements for the insertion loss of the passive link are further improved. In addition, the circuit board needs to arrange the wiring between the connector and the data processing module to ensure the communication between the two, which increases the complexity of the wiring on the circuit board, thereby increasing the production cost of the circuit board.

[0089] It can be seen that in the communication equipment of the prior art, the connector and the data processing module communicate by signal transmission through the circuit board. The insertion loss of the passive link is large during data transmission, and the wiring on the circuit board is highly complex and the production cost is high.

[0090] It should be noted that in the process of signal transmission, the transmission loss is mainly composed of three parts: dielectric loss, conductor loss and radiation loss. Among them, dielectric loss refers to the heat loss caused by the alternating polarization of dielectric molecules and the continuous collision of lattices when the electric field passes through the medium; conductor loss is the loss caused by the heat generated when the conductor is not ideal and there is loss resistance. The main influencing factors are the resistance of the conductor, the current distribution (skin effect) and the surface roughness of the conductor; radiation loss is the electromagnetic wave radiation loss caused by the semi-openness of the microstrip line field structure. Generally speaking, this part of the loss is very small. Therefore, the signal transmission loss is mainly dielectric loss and conductor loss.

[0091] Among them, the dielectric loss of high-speed signals during transmission is related to factors such as the dielectric constant, loss factor and transmission frequency of the material. The conductor loss mainly includes heat loss caused by the skin effect and reflection and superposition loss caused by the roughness of the conductor. Among them, the heat loss caused by the skin effect increases with the increase of the transmission frequency, and the greater the roughness of the conductor, the greater the "standing wave" and "reflection" generated during signal transmission, and the greater the signal loss. Therefore, reducing insertion loss is mainly achieved through the following ways: achieving high-density wiring, thereby shortening the signal transmission distance and reducing signal transmission loss; using materials with low loss characteristics; using low-roughness copper foil, and reducing the impact of the process on roughness during processing.

[0092] Based on this, the present application provides a connector, which communicates with a data processing module in a communication device through a first cable (for transmitting high-speed signals, such as differential signals) and a second cable (for transmitting low-speed signals, such as single-ended signals). The low-loss characteristics of the materials of the first cable and the second cable are better, which can effectively reduce the insertion loss during data transmission, reduce the wiring complexity of the circuit board, and reduce production costs. The existing technology solves the problem that the connector and the data processing module communicate through the circuit board for signal transmission, the insertion loss of the passive link is large during data transmission, the wiring complexity on the circuit board is high, and the production cost is high.

[0093] The present application also provides a communication device, which includes the above-mentioned connector. The communication device specifically includes but is not limited to switches, routers, network transmission equipment, broadband access equipment, and any other communication equipment that can be plugged and connected to the plug-in module. This does not limit the scope of protection of the present application. The plug-in module is a module that can be plugged and connected to the communication device, such as an optical module. The connector is used to electrically connect to the plug-in module when the plug-in module is plugged into the communication device. The following uses the communication device as a switch and the plug-in module as an optical module as an example to illustrate the application scenario of the connector.

[0094] See also Figure 2a to Figure 2b , Figure 2a This is a schematic diagram of the structure of a communication device according to an embodiment of the present application; Figure 2b This is a schematic diagram of the signal transmission principle between the communication device and the plug-in module according to an embodiment of the present application.

[0095] like Figure 2a to Figure 2b As shown, the communication device 2 includes a housing 21, a circuit board 22, a data processing module 24, a connector 3 and an additional connector 23. The circuit board 22, the data processing module 24, the additional connector 23 and the connector 3 are all arranged in the housing 21. It should be noted that the communication device 2 may include one or more connectors 3. In one example, Figure 2a and Figure 2b As shown, the communication connector 2 is provided with a plurality of connectors 3, and the plurality of connectors 3 can be arranged in a multi-row array in the housing 21. In addition, an opening is provided on one side of the housing 21, such as on the front side of the housing 21, that is, on the front side of the appearance. The optical module 11 is plugged into the connector 3 through the opening on the side of the housing 21 and is electrically connected to the connector 3, thereby realizing the transmission of data between the optical module 11 and the communication device 2. It can be understood by those skilled in the art that the communication device 2 may not be provided with the housing 21, and this application does not limit this.

[0096] Furthermore, if Figure 2b As shown, the data processing module 24 and the additional connector 23 are respectively fixed and electrically connected to the circuit board 22, the cable 7 of the connector 3 is electrically connected to the additional connector 23, and the additional connector 23 and the data processing module 24 are electrically connected through the circuit board 22; the optical module 11 and the data processing module 24 communicate via the connector 3 and the additional connector 23.

[0097] The additional connector 23 may be arranged at any position on the circuit board 22. In a plane perpendicular to the thickness direction of the circuit board 22, the additional connector 23 may be arranged between the connector 3 and the data processing module 24, or may be arranged on the side of the data processing module 24. In a possible implementation, Figure 2bAs shown, on a plane perpendicular to the thickness direction of the circuit board 22, the additional connector 23 is located between the connector 3 and the data processing module 24. This makes the length of the cable 7 required between the connector 3 and the additional connector 23 relatively short, thereby further reducing the insertion loss and helping to reduce production costs.

[0098] It should be noted that the type of the optical module 11 is not limited. The types of optical modules 11 corresponding to the connector 3 generally include small form pluggable optical modules (SFP), dual small form factor pluggable optical modules (DSFP), quad small form factor pluggable optical modules (QSFP), and quad small form factor pluggable optical modules (QSFPDD).

[0099] It should be noted that the type of the data processing module 24 is not limited. The data processing module 24 generally includes a central processing unit (CPU), a graphics processing unit (GPU), a data processing unit (DPU), and the like.

[0100] The application scenario of data transmission between the plug-in module 1 and the communication device 2 is introduced above with reference to the accompanying drawings. The structure of the connector 3 and the installation method of the connector 3 and the communication device 2 are described in detail below with reference to the accompanying drawings.

[0101] See also Figures 3 to 8b , Figure 3 This is a schematic diagram of the connection principle between the connector and the plug-in module according to the embodiment of the present application; Figure 4 This is a schematic diagram of the connection between the connector and the mounting component in the communication device of the embodiment of the present application; Figure 5 This is a schematic diagram of the structure of the connector according to the embodiment of the present application; Figure 6 This is a schematic diagram of the exploded structure of the connector according to an embodiment of the present application; Figure 7 for Figure 6 A partial enlarged view of part A; Figure 8a A schematic diagram of a partial structure of a connector and a mounting component in a communication device according to an embodiment of the present application from another perspective; Figure 8b This is a schematic diagram of the connection principle between the connector and the mounting component in the communication device of the embodiment of the present application.

[0102] like Figure 3 and Figure 4As shown, the connector 3 includes a housing 4 and an electrical connection module 6, the electrical connection module 6 includes a cable 7, and the electrical connection module 6 is disposed inside the housing 4. The housing 4 is provided with an opening (not shown in the figure) at a first end 45 in the first direction X, and the opening is used for the plug-in module 1 to be inserted into or removed from the connector 3. When the plug-in module 1 is plugged into the connector 3, the electrical connection module 6 is electrically connected to the plug-in module 1. Figure 4 As shown, the opening on the housing 4 is connected to the housing 21 (see Figure 2a ), and the first direction X is the plug-in and unplug direction of the plug-in module 1 and the connector 3.

[0103] In one possible implementation, Figure 3 As shown, the connector 3 may further include a heat dissipation module 31. When the plug-in module 1 is plugged into the connector 3, the heat generated by the signal transmission of the optical module 11 is transferred to the heat dissipation module 31 for heat dissipation, so as to prevent the excessive temperature from affecting the data transmission performance of the communication device 2. In other possible implementations, the heat dissipation module 31 may not be provided in the connector 3, and this application does not limit this.

[0104] It should be noted that the specific structure of the housing 4 is not limited. In a possible implementation, Figure 3 , Figure 5 and Figure 6 As shown, the housing 4 includes a housing body 41 and a back cover 5, and one end of the housing body 41 along the first direction X is fixedly connected to the back cover 5. The other end of the housing body 41 constitutes a first end 45 of the housing 4, and the back cover 5 constitutes a second end 46 of the housing 4. In one example, the housing 4 is configured as a shielding structure (or it can be understood that the housing body 41 and the back cover 5 are both configured as shielding structures, and the material of the shielding structure can be, for example, a metal material) to reduce the electromagnetic radiation at the plug-in point of the optical module 11 and the connector 3, and improve electromagnetic compatibility (EMC).

[0105] In one possible implementation, Figure 3 As shown, the shell body 41 is configured as a shell-like structure with openings at both ends, a hollow interior, and extending along the first direction X. When the plug-in module 1 is plugged into the connector 3, the shell body 41 has a guiding function. In addition, the opening of the shell 4 at the first end 45 in the first direction X is provided on the shell body 41. In one example, the back cover 5 can be formed by alloy die-casting, such as using zinc alloy die-casting to form the back cover 5. The shell body 41 can be made of copper alloy material or stainless steel material.

[0106] It should be noted that the shell body 41 can be an integral structure formed in one piece, or a split structure composed of a plurality of sub-shells. In one example, the shell body 41 is a split structure composed of a plurality of sub-shells. In addition, the manner of fixing the components of the shell 4 is not limited, and can be a clamping connection, a threaded connection, etc. Exemplarily, the components of the shell 4 are clamped and fixed.

[0107] In one possible implementation, Figure 7 , Figure 8a and Figure 8b As shown, the housing 4 may further include a fastening structure 43, and the fastening structure 43 (the fastening structure 43 may be, for example, disposed on the housing body 41 of the housing 4) is used to fix the housing 4 of the connector 3 to the mounting component 20. The mounting component 20 may be a circuit board 22 or a housing of a communication device. Those skilled in the art may design the housing 4 according to specific requirements. In one example, the housing 4 of the connector 3 is fixedly connected to the circuit board 22. In another example, the housing 4 of the connector 3 is fixedly connected to the housing of the communication device.

[0108] Furthermore, there is no limit to the manner in which the connector 3 and the mounting component 20 are fixedly connected, that is, the specific structure of the fastening structure 43 is not limited, and it can be fixed by crimping or by threaded connection, and the present application does not impose any limitation on this.

[0109] In one possible implementation, Figure 7 , Figure 8a and Figure 8b As shown, the housing 4 has a mounting surface 42 facing the mounting component 20. The fastening structure 43 includes a plurality of crimping members 44, which are arranged at intervals on a plane perpendicular to the third direction and protrude from the surface of the shell body 41 facing the mounting component 20. A crimping hole (not shown in the figure) is provided at a corresponding position of the mounting component 20, and the connector 3 and the mounting component 20 are crimped and fixed by crimping the crimping member 44 into the crimping hole. The connector 3 does not need to be provided with a fastening structure 43 extending from the mounting surface 42 on both sides along the second direction, which is conducive to the miniaturization of the connector 3 and facilitates the arrangement of multiple connectors 3.

[0110] It should be noted that the specific structure of the crimping member 44 is not limited. Figure 8bAs shown, each crimping part 44 includes a crimping body 44A and a shoulder structure 44B, the crimping body 44A is connected to the shell body 41 through the shoulder structure 44B, and the shoulder structure 44B protrudes from the outer peripheral surface of the crimping body 44A; wherein, in each crimping part 44, the crimping body 44A is inserted into the interior of the mounting component 20 (for example, the crimping hole), and the portion of the shoulder structure 44B protruding from the crimping body 44A has a contact surface 44C, and the contact surface 44C abuts against the surface of the mounting component 20 facing the shell 4. The contact surface 44C of each shoulder structure 44B constitutes the mounting surface 42 of the shell 4. It should be noted that the formation method of the mounting surface 42 of the shell 4 is not limited, and is not limited to the above-mentioned structure, and can be reasonably set according to actual needs, and the present application does not limit this. In addition, the specific structure of the crimping body 44A is not limited. For example, it can be set as a fisheye structure.

[0111] The structure of the connector 3 and the installation method of the connector 3 are described in detail above with reference to the accompanying drawings. The structure of the electrical connection module 6 and the connection method between the electrical connection module 6 and the plug-in module 1 are described below with reference to the accompanying drawings.

[0112] See also Figures 9 to 12 , Fig. 9 This is a schematic diagram of the exploded structure of the electrical connection module in the connector of the embodiment of the present application, wherein the first cable and the second cable are inserted through the back cover; Fig.10a This is a schematic diagram of the structure of the electrical connection module in the connector of the embodiment of the present application, wherein the first cable and the second cable are passed through the back cover; Fig.10b This is a schematic diagram of the connection principle between the first signal transmission part and the second signal transmission part and the plug-in module in the connector of the embodiment of the present application; Fig.11a is a schematic cross-sectional view of a first cable in a connector according to an embodiment of the present application; Fig.11b is a schematic cross-sectional view of a second cable in the connector according to an embodiment of the present application; Fig.12 This is a schematic diagram of the connection between the signal transmission terminal of the electrical connection module and the cable and the plug-in module in the connector of the embodiment of the present application.

[0113] In one possible implementation, Fig. 9 , Fig.10a and Fig.10b As shown, the electrical connection module 6 may include a first signal transmission portion 62 and a second signal transmission portion 65. The first signal transmission portion 62 includes two first signal transmission terminals 63 arranged at intervals, and a first cable 71. One end of the first cable 71 is electrically connected to one end of the two first signal transmission terminals 63, and the other end extends to the outside of the second end 46 of the housing 4 in the first direction X, or it can be understood that the other end of the first cable 71 passes through the second end 46 of the housing 4 in the first direction X and extends to the outside of the housing 4. In one example, the first signal transmission portion 62 of the electrical connection module 6 is used to transmit high-speed signals, such as differential signals.

[0114] The second signal transmission part 65 includes a single second signal transmission terminal 66 and a second cable 72. One end of the second cable 72 is electrically connected to one end of the second signal transmission terminal 66, and the other end extends out of the second end 46 of the housing 4, or it can be understood that the other end of the second cable 72 passes through the second end 46 of the housing 4 in the first direction X and then extends to the outside of the housing 4. In an example, the second signal transmission part 65 of the electrical connection module 6 is used to transmit a low-speed signal, for example, a single-ended signal.

[0115] Furthermore, if Figure 2b As shown, the other end of the first cable 71 and the other end of the second cable 72 are both electrically connected to the additional connector 23, so that the first signal transmission part of the connector 3 is electrically connected to the data processing module 24 through the first cable 71 and the additional connector 23 in sequence, and the second signal transmission part is electrically connected to the data processing module 24 through the second cable 72 and the additional connector 23 in sequence. The connector 3 in the communication device 2 is electrically connected to the additional connector 23 through the first cable 71 and the second cable 72, and then communicates with the data processing module 24 through the additional connector 23, which effectively reduces the insertion loss during data transmission, reduces the wiring complexity of the circuit board 22, and reduces the production cost.

[0116] It can be understood by those skilled in the art that the signal transmission part for transmitting high-speed signals in the electrical connection module 6 can partially adopt the structure of the first signal transmission part 62, and the other part can adopt other structures, for example, only including two first signal transmission terminals 63 arranged at intervals, and the two first signal transmission terminals 63 are directly electrically connected to the corresponding signal transmission part (not shown in the figure) on the circuit board 22, for example, the two first signal transmission terminals 63 are respectively plugged into the metal vias on the circuit board 22 through the fisheye structure to achieve electrical connection. Alternatively, the signal transmission part for transmitting high-speed signals in the electrical connection module 6 can all adopt the structure of the first signal transmission part 62. This application does not limit this.

[0117] It is also understandable that the signal transmission part for transmitting low-speed signals in the electrical connection module 6 may partially adopt the structure of the second signal transmission part 65, and the other part may adopt other structures, for example, only including a single second signal transmission terminal 66, and the second signal transmission terminal 66 is directly electrically connected to the corresponding signal transmission part on the circuit board 22. Alternatively, the signal transmission part for transmitting low-speed signals in the electrical connection module 6 may all adopt the structure of the second signal transmission part 65. This application is not limited to this.

[0118] It should be noted that the specific structures of the first cable 71 and the second cable 72 are not limited. In a possible implementation, Fig.11a and Fig.11b As shown, combined with Fig.10b It is understood that the first cable 71 includes two paired signal cores 73, and the two signal cores 73 of the first cable 71 in the first signal transmission part 62 are electrically connected to the two first signal transmission terminals 63, or it can be understood that one of the signal cores 73 of the first cable 71 is electrically connected to one of the first signal transmission terminals 63, and the other signal core 73 of the first cable 71 is electrically connected to the other first signal transmission terminal 63. The second cable 72 includes a single signal core 73, and the signal core 73 of the second cable 72 in the second signal transmission part 65 is electrically connected to a single second signal transmission terminal 66.

[0119] Furthermore, the signal core 73 is made of a conductive material, and an inner insulating layer 74 is provided outside the signal core 73 of each cable. The first cable 71 is used to transmit a high-speed signal, such as a differential signal; and the second cable 72 is used to transmit a low-speed signal, such as a single-ended signal. In a possible implementation, Fig.11a As shown, the first cable 71 for transmitting high-speed signals may further include a shielding layer 75 , which is made of a conductive material and covers two paired signal cores 73 , and each first cable 71 further includes an outer insulating layer 76 , which covers the shielding layer 75 .

[0120] It should be noted that Fig.11a and Fig.11b The structures of the high-speed cable (first cable 71) and the low-speed cable (second cable 72) shown in the figure are only used as an example to illustrate that the high-speed cable is provided with two paired signal wire cores 73, and the low-speed cable is provided with only a single signal wire core 73, and does not limit the protection scope of this application. In actual products, other Fig.11a and Fig.11b The structure shown in the figure may have more components or fewer components. For example, one or two ground wires may be adaptively added to the high-speed cable and the low-speed cable. Those skilled in the art may make a selection according to actual needs.

[0121] Among them, Fig.10b As shown, the electrical connection between the first cable 71 and the first signal transmission terminal 63, and the second cable 72 and the second signal transmission terminal 66 can be achieved by welding. For example, resistance welding, pulse hot pressing welding, and other welding methods can be used.

[0122] It should be noted that the number of the first signal transmission parts 62 and the number of the second signal transmission parts 65 in the electrical connection module 6 are not limited and can be one or more. Fig.10bAs shown, the electrical connection module 6 includes a plurality of first signal transmission parts 62 and a plurality of second signal transmission parts 65. Accordingly, the electrical connection module 6 has a plurality of first signal transmission terminals 63 and a plurality of first cables 71, and a plurality of second signal transmission terminals 66 and a plurality of second cables 72.

[0123] It will be understood by those skilled in the art that Fig. 9 As shown, the electrical connection module 6 may further include a fixed shell 69 and a retaining member 68, and the first signal transmission part 62 (for example, the first signal transmission terminal 63) and the second signal transmission part 65 (for example, the second signal transmission terminal 66) are both disposed in the retaining member 68. It should be noted that the number of retaining members 68 in the electrical connection module 6 is not limited, and may be one or more. In a possible implementation, the electrical connection module 6 is provided with a plurality of retaining members 68 (for example, four retaining members 68) stacked in sequence along the thickness direction of the retaining member 68. Among them, the plurality of retaining members 68 are fixedly connected, and the fixed connection method is not limited, and may be connected by means of clamping, riveting or bonding.

[0124] The specific structure of the fixed shell 69 is not limited. Fig. 9 As shown, in a possible implementation, the fixed shell 69 is provided with: a through slot 691 extending along the first direction X, and the retaining member 68 is inserted into the fixed shell 69 through the first end 692 of the through slot 691. In addition, the connector 3 in the communication device 2 can be provided with a fixed shell 69 alone, or multiple connectors 3 can share one fixed shell 69. In a possible implementation, as Fig. 9 As shown, the two connectors 3 share a fixed shell 69. The fixed shell 69 may be a plastic part, such as a plastic structural part formed by injection molding or the like.

[0125] It should be noted that the multiple connectors 3 of the communication device 2 may share a back cover 5, or a back cover 5 may be separately provided for each connector 3. In a possible implementation, Fig. 9 As shown, two connectors 3 share one rear cover 5, and the rear covers 5 of the two connectors 3 are set as an integrated structure. Multiple connectors 3 share one rear cover 5, which reduces the process of assembling multiple rear covers 5 and reduces costs.

[0126] The electrical connection module 6 and the housing 4 are fixedly connected in any manner, and may be fixedly connected by clamping, riveting, threading, etc. In one example, the fixed shell 69 of the electrical connection module 6 is clamped and fixed to the housing 4 (eg, the back cover 5 of the housing 4).

[0127] In one possible implementation, Figure 3 , Fig. 9 and Fig.10bAs shown, a sub-circuit board 12 is provided at one end of the plug-in module 1 close to the electrical connection module 6, and a signal transmission terminal 13 is provided on the sub-circuit board 12. When the plug-in module 1 is plugged into the connector 3, the sub-circuit board 12 of the plug-in module 1 is inserted into the fixed shell 69 through the second end 693 of the through slot 691, so that the other ends of the two first signal transmission terminals 63 in the first signal transmission part 62 and the other end of the second signal transmission terminal 66 in the second signal transmission part 65 are respectively used to electrically connect with the signal transmission terminals 13 corresponding to the plug-in module 1. Among them, the substrate molding materials of the circuit board 22 and the sub-circuit board 12 can be insulating materials such as epoxy resin, and the molding material of the signal transmission terminal 13 can be a metal material such as copper.

[0128] Specifically, Fig.12 As shown, the other end of the first signal transmission terminal 63 and the other end of the second signal transmission terminal are both provided with a contact portion 67 protruding toward the inserted plug-in module, and the signal transmission terminal 13 of the plug-in module is configured in a sheet shape and is located on both sides of the thickness direction of the sub-circuit board 12. When the plug-in module is plugged into the connector, the contact portions 67 of the other end of the first signal transmission terminal 63 and the other end of the second signal transmission terminal contact the sheet-shaped signal transmission terminal 13 of the plug-in module to make an electrical connection.

[0129] The structure of the electrical connection module 6 and the connection method between the electrical connection module 6 and the plug-in module 1 are introduced above with reference to the accompanying drawings. The structure of the rear cover 5 is described in detail below with reference to the accompanying drawings.

[0130] See also Fig.13 , Fig.13 It is a schematic diagram of the structure of the rear cover in the connector of the embodiment of the present application.

[0131] like Figure 8a and Fig.13 As shown, the second end 46 of the housing 4 is provided with a first through hole group 51 and a second through hole group 53, the first through hole group 51 includes: a first through hole 52 through which the first cable 71 in the power connection module 6 passes, and the second through hole group 53 includes a second through hole 54 through which the second cable 72 in the power connection module 6 passes. Specifically, the first through hole group 51 and the second through hole group 53 are provided on the back cover 5 of the housing 4.

[0132] It should be noted that the number of the first through holes 52 in the first through hole group 51 is not limited and can be one or more. Fig.13As shown, the first through hole group 51 has a plurality of first through holes 52, and each first cable 71 passes through a different first through hole 52. Or it can be understood that only one first cable 71 passes through each first through hole 52. The second through hole 54 is provided with at least two second cables 72. Or it can be understood that two or more second cables 72 can pass through one second through hole 54. Only one first cable 71 passes through each first through hole 52, which effectively avoids the adverse effects of excessive bending and scratching of the first cable 71 on signal transmission, while ensuring the high-speed signal transmission performance of the first cable 71. Multiple second cables 72 pass through the second through hole 54, which improves the processing efficiency when the second cable 72 passes through the housing 4 and reduces the production cost.

[0133] Furthermore, the number of the second through holes 54 in the second through hole group 53 is not limited and can be one or more. In a possible implementation, Fig.13 As shown, the second through hole group 53 includes a plurality of second through holes 54. In another possible implementation, the second through hole group 53 includes only one second through hole 54, and the plurality of second cables 72 are all passed through the second through hole 54 to exit the housing 4.

[0134] It should be noted that when the second through hole group 53 includes a plurality of second through holes 54, the number of second cables 72 in each second through hole 54 is not limited, and may be zero, one, or more. And the number of second cables 72 in each second through hole 54 may be equal or unequal. In one example, each second through hole 54 is penetrated by at least two second cables 72, for example, three, six, or eight; and the number of second cables 72 penetrated by each second through hole 54 is equal. Multiple second cables 72 are penetrated in each second through hole 54, which further improves the shielding effect of the connector 3 and the processing efficiency when the second cables 72 penetrate the housing 4. In an example, as Fig.13 The rear cover opening solution shown has a shielding effect of up to 10 dB, and compared with a solution in which the second cable 72 also uses a single cable outlet, the threading process time is saved by about 30%.

[0135] In another example, six second cables 72 are passed through some of the second through holes 54 , only a single second cable 72 is passed through some of the second through holes 54 , and no second cable 72 is passed through another part of the second through holes 54 .

[0136] In a possible implementation, 4 to 7 second cables 72 are inserted into each second through hole 54. The processing efficiency of the second cable 72 when passing through the housing 4 is ensured, and the deformation of the second cable 72 is small in the process of extending to the second through hole 54, which ensures the connection reliability between the second cable 72 and the second signal transmission terminal 66; further, the number of gaps between each second cable 72 is appropriate, which ensures the shielding effect of the connector 3. It is understandable that, according to actual conditions, more than 7 and less than 4 second cables 72 can be set in each second through hole 54. The number range of the second cables 72 in the second through hole 54 shown in this application does not limit this application.

[0137] like Figure 2b , Fig. 9 and Fig.10b As shown, after the plug-in module 1 is plugged into the connector 3, the signal transmission terminal 13 of the plug-in module 1 is electrically connected to the other end of the first signal transmission terminal 63 and the other end of the second signal transmission terminal 66 in the electrical connection module 6, and the first cable 71 and the second cable 72 are electrically connected to one end of the first signal transmission terminal 63 and one end of the second signal transmission terminal 66, respectively, and the first cable 71 and the second cable 72 pass through the housing 4 through the first through hole group and the second through hole group provided on the second end 46 of the housing 4, respectively. After the first cable 71 and the second cable 72 pass through the housing 4 of the connector 3, the other end of the first cable 71 and the other end of the second cable 72 can extend to a position near the data processing module 24 on the circuit board 22 (or it can be understood that the distance between the position on the circuit board 22 electrically connected to the first cable 71 and the second cable 72 and the data processing module 24 is shorter than the distance between the connector 3 and the data processing module 24), and are electrically connected to the data processing module 24 through the circuit board 22. Or it can be understood that the connector 3 communicates with the data processing module 24 in the communication device 2 through the first cable 71 and the second cable 72 passing through the first through hole group and the second through hole group. The cable 7 material has a smaller insertion loss during data transmission than the circuit board 22 material, which effectively improves the signal integrity during data transmission. In addition, there is no need to arrange the wiring between the connector 3 and the data processing module 24, which reduces the complexity of the wiring of the circuit board 22, thereby reducing the production cost.

[0138] Therefore, the connector 3 provided in the present application communicates with the data processing module 24 in the communication device 2 through the first cable 71 and the second cable 72, which can effectively reduce the insertion loss during data transmission, reduce the wiring complexity of the circuit board 22, and reduce the production cost. The problem that the connector 3 and the data processing module 24 perform signal transmission communication through the circuit board 22 in the prior art, the insertion loss of the passive link is large during data transmission, the wiring complexity on the circuit board 22 is high, and the production cost is high is solved.

[0139] The structure of the rear cover 5 is described in detail above with reference to the accompanying drawings. The structure and arrangement of the first through hole 52 and the second through hole 54 are described in detail below with reference to the accompanying drawings.

[0140] See also Figure 14 to Figure 16c , Fig.14 This is a schematic diagram showing another arrangement of the first through hole and the second through hole in the connector of the embodiment of the present application; Fig.15 This is a schematic diagram of another arrangement of the first through hole and the second through hole in the connector of the embodiment of the present application; Fig.16a A schematic diagram of the opening shapes of the first through hole and the second through hole in the connector of the embodiment of the present application; Fig.16b A schematic diagram of another opening shape of the first through hole or the second through hole in the connector of the embodiment of the present application; Fig.16c This is a schematic diagram of another opening shape of the first through hole or the second through hole in the connector of the embodiment of the present application.

[0141] It should be noted that the first through holes 52 in the first through hole group 51 and the second through holes 54 in the second through hole group 53 can be independently arranged in different areas, or can be staggered in the same area. Fig.13 As shown, the first through hole group 51 is arranged in the first area S1 of the second end of the housing, and the second through hole group 53 is arranged in the second area S2 of the second end of the housing, and the second area S2 is located on one side of the first area S1 in the second direction Y. The second direction Y is perpendicular to the first direction X. The first through hole group 51 and the second through hole group 53 are independently arranged, and the second through hole group 53 is located on one side of the first through hole group 51 in the second direction Y. In another possible implementation, as Fig.14 As shown, the first through holes 52 and the second through holes 54 are arranged alternately in sequence along the third direction Z, or it can be understood that the first through holes 52 in the first through hole group 51 and the second through holes 54 in the second through hole group 53 are arranged alternately in the same area. The third direction Z is perpendicular to the first direction and perpendicular to the mounting surface of the housing.

[0142] Furthermore, the first through hole 52 and the second through hole 54 may be arranged on the same plane or on different planes. Fig.13 As shown, the back cover 5 has a first surface perpendicular to the first direction X, and the first through hole 52 and the second through hole 54 are both arranged on the first surface of the back cover 5. In another possible implementation, as Fig.15As shown, the back cover 5 is arranged in a stepped shell shape, having a first surface and a second surface parallel to and spaced from the first surface. Part of the first through holes 52 and part of the second through holes 54 are arranged on the first surface of the back cover 5, and another part of the first through holes 52 and another part of the second through holes 54 are arranged on the second surface of the back cover 5. In another possible implementation, the stepped shell-shaped back cover 5 includes a first surface and a second surface, the first through holes 52 are all arranged on the first surface, and the second through holes 54 are all arranged on the second surface.

[0143] Furthermore, a complete first through hole 52 or a complete second through hole 54 can be arranged on the same plane or on different planes. Fig.13 As shown, the first through hole 52 and the second through hole 54 are completely arranged on the first surface of the back cover 5. In another possible implementation, as Fig.15 As shown, part of the complete first through hole 52 is disposed on the first surface, and another part is disposed on the second surface; part of the complete second through hole 54 is disposed on the first surface, and another part is disposed on the second surface.

[0144] Furthermore, the back cover 5 may be an integrated structure or a split structure composed of a plurality of sub-components. Fig.15 As shown, the back cover 5 is set as an integrated structure. In another example, the back cover 5 is composed of multiple sub-components. Moreover, a complete first through hole 52 can be set on different sub-components of the back cover 5 (or it can be understood that multiple sub-components of the back cover 5 together constitute a complete first through hole 52), or can be set on the same sub-component of the back cover 5.

[0145] It should be noted that the size of the first through hole 52 is determined according to the size of the first cable 71; the size of the second through hole 54 is determined according to the size of the second cable 72 and the number of the second cables 72 in the second through hole 54. In addition, a reasonable clearance margin should be provided between the outer surface of the first cable 71 and the wall surface of the first through hole 52, and between the outer surface of the second cable 72 and the wall surface of the second through hole 54, so that while ensuring the shielding effect of the communication device 2, it is convenient for the first cable 71 and the second cable 72 to pass through the first through hole 52 and the second through hole 54, respectively, which effectively improves the processing efficiency and reduces the production cost.

[0146] Among them, the gap between the outer surface of the first cable 71 and the wall surface of the first through hole 52 is s1, where 0 < s1 ≤ 0.8 mm. The gap between the outer surface of the second cable 72 and the wall surface of the second through hole 54 is s2, where 0 < s2 ≤ 0.8 mm. Exemplarily, the gap s1 between the outer surface of the first cable 71 and the wall surface of the first through hole 52 can be 0.2 mm, 0.4 mm, 0.6 mm, 0.8 mm; the gap s2 between the outer surface of the second cable 72 and the wall surface of the second through hole 54 can be 0.2 mm, 0.4 mm, 0.6 mm, 0.8 mm.

[0147] It can be understood that the gap ranges between the outer surface of the first cable 71 and the wall surface of the first through hole 52 and between the outer surface of the second cable 72 and the wall surface of the second through hole 54 shown in this embodiment do not limit this application. When ensuring the shielding effect of the communication device 2, the gap s1 between the outer surface of the first cable 71 and the wall surface of the first through hole 52 and the gap s2 between the outer surface of the second cable 72 and the wall surface of the second through hole 54 can also be greater than 0.8 mm. Exemplarily, the gap s1 between the outer surface of the first cable 71 and the wall surface of the first through hole 52 can also be 1 mm, 1.2 mm, 1.6 mm, and the gap s2 between the outer surface of the second cable 72 and the wall surface of the second through hole 54 can also be 1 mm, 1.2 mm, 1.6 mm.

[0148] It should be noted that the wall surface shapes of the first through hole 52 and the second through hole 54 are not limited. For example, they can only include a plane or an arc surface, or can include both a plane and an arc surface at the same time. In a possible implementation, as Fig.16a and Fig.16b shown, the opening shapes of the first through hole 52 and the second through hole 54 are set as a rectangle or a hexagon, and the wall surfaces of the first through hole 52 and the second through hole 54 only include planes. In another possible implementation, the opening shapes of the first through hole 52 and the second through hole 54 are set as an ellipse, and the wall surfaces of the first through hole 52 and the second through hole 54 only include arc surfaces. In still another possible implementation, as Fig.16c shown, the wall surfaces of the first through hole 52 and the second through hole both include a plane and an arc surface.

[0149] Among them, the opening shapes of the first through hole 52 and the second through hole 54 can be the same or different. In one example, as Fig.16a shown, the opening shapes of the first through hole 52 and the second through hole 54 are set as rectangles. Only a single first cable (not shown in the figure) is provided in the first through hole 52, and multiple second cables (not shown in the figure) are provided in the second through hole 54. The size of the second through hole 54 is larger than that of the first through hole 52. In another example, the opening shape of the first through hole 52 is set as a rectangle, and the opening shape of the second through hole 54 is set as an ellipse.

[0150] Further, when the wall surface of the first through hole 52 includes a plane, there is a rounded corner between the plane and the adjacent surface; correspondingly, when the wall surface of the second through hole 54 includes a plane, there is also a rounded corner between the plane and the adjacent surface. In a possible implementation, as Fig.16a As shown, the opening shapes of the first through hole 52 and the second through hole 54 are set to be rectangular, the wall surface of the first through hole 52 and the wall surface of the second through hole 54 both include only planes, and chamfered corners are provided between adjacent planes of the wall surface of the first through hole 52, and chamfered corners are also provided between adjacent planes of the wall surface of the second through hole 54. The arc surface transition is adopted between the adjacent wall surfaces of the first through hole 52 and the second through hole 54, which effectively prevents the first cable 71 and the second cable 72 from being scratched and causing adverse effects on signal transmission, thereby improving the reliability of data signal transmission.

[0151] The structure and arrangement of the first through hole 52 and the second through hole 54 are described in detail above with reference to the accompanying drawings. The causes of the floating phenomenon between the housing 4 and the circuit board and the solution are described below with reference to the accompanying drawings.

[0152] See also Fig.17 , Fig.17 It is a schematic diagram of the processing principle of crimping and fixing the housing to the circuit board in the communication device in the embodiment of the present application.

[0153] like Fig.17 As shown, the processing process of crimping and fixing the shell 4 to the circuit board 22 is as follows: the crimping tool 81, the shell 4 and the circuit board 22 are stacked in sequence on the workbench 82, and the crimping machine 80 presses the crimping tool 81, and the crimping part 44 set on the mounting surface 42 of the shell 4 is crimped into the corresponding crimping hole of the circuit board 22 through the crimping tool 81.

[0154] Among them, when the mounting surface 42 of the shell 4 is crimped, the shell 4 may be subjected to uneven force due to the following reasons: the surface of the shell 4 is provided with a protrusion or a recessed structure for connecting with other components (for example, an electrical connection module), and the area where the crimping tool 81 is connected to the shell 4 usually needs to avoid the area where the protrusion or the recessed structure is provided, and the surface of the shell 4 cannot be subjected to force as a whole; the outer surface of the shell 4 is relatively large, and due to the influence of factors such as the processing technology, the surface of the shell 4 will have a certain curvature as a whole; and the workbench 82 is a split structure composed of multiple sub-components. Uneven force when the mounting surface 42 of the shell 4 is crimped may cause crimping floating height between the shell 4 and the circuit board 22; or it can be understood that there is a certain distance (a gap) between the mounting surface 42 of the shell 4 and the surface of the circuit board 22.

[0155] It should be noted that, since the first end 45 of the housing 4 will be installed with other components such as the housing 21 of the communication device 2, a certain pressure is generated on the first end 45 of the housing 4, and thus the floating height between the first end 45 of the housing 4 and the circuit board 22 is corrected to a certain extent. In order to improve the reliability of the communication device 2, the present application also corrects the floating height between the second end 46 of the housing 4 and the circuit board 22.

[0156] In one possible implementation, Figure 8b As shown, the housing 4 further includes a locking structure 55, which is disposed on the outer end surface of the second end 46 of the housing 4 (e.g., the back cover 5), and is used to press the mounting surface 42 of the housing 4 against the surface of the mounting component 20 (e.g., the circuit board 22) facing the housing 4 in the third direction Z. The connector 3 locks the mounting surface 42 of the housing 4 against the surface of the mounting component 20 facing the housing 4 through the locking structure 55, thereby reducing the distance between the mounting surface 42 of the housing 4 and the surface of the mounting component 20, and the connector 3 is not easily loosened in harsh scenarios such as falling, thereby improving the connection reliability between the connector 3 and the mounting component 20.

[0157] It should be noted that the locking structure 55 can be provided on the shell body 41 or on the back cover 5. In a possible implementation, Fig.13 As shown, the locking structure 55 is disposed on the outer surface of the rear cover 5 along the first direction X, which reduces the size of the connector 3 in the second direction Y, and is conducive to improving the layout of multiple connectors 3 in the communication device 2. In another possible implementation, the locking structure 55 is disposed on the outer surface of the shell body 41 near one end of the rear cover 5 along the second direction.

[0158] Furthermore, if Figure 8b As shown, the communication device further includes a fastener 26, and the locking structure 55 includes a locking seat 56. The fastener 26 penetrates the locking seat 56 and is fastened to the mounting component 20, so that the mounting surface 42 of the housing 4 can be pressed against the surface of the mounting component 20. Specifically, the mounting component 20 is provided with a locking portion 20A, and the fastener 26 penetrates the locking seat 56 and is fastened to the locking portion 20A of the mounting component 20.

[0159] It should be noted that the locking method between the second end 46 of the housing 4 and the circuit board 22 is not limited, and can be locked by a threaded structure or a clamping structure. In one possible implementation, the locking seat 56 is provided with a threaded hole, the locking portion 20A is also provided with a threaded hole, and the fastener 26 is provided with a thread. The fastener 26 passes through the threaded hole of the locking seat 56 and the threaded hole of the locking portion 20A in sequence, and the mounting surface 42 of the housing 4 is pressed against the surface of the mounting component 20 through the cooperation of the threaded structure. The connector 3 and the mounting component 20 are locked to the mounting component 20 by a threaded connection, which has a simple structure and low manufacturing cost. In another possible implementation, the fastener 26 passes through the locking seat 56 and then clamps into the locking portion 20A of the mounting component 20.

[0160] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application. Thus, if these modifications and modifications of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and modifications.

Claims

1. A connector, characterized in that: The invention comprises a housing and an electrical connection module, wherein the electrical connection module is arranged inside the housing, and an opening is provided on a first end of the housing in a first direction, wherein the opening is used for allowing the plug-in module to be inserted into or removed from the connector; wherein the first direction is the plug-in and removal direction of the plug-in module and the connector; The electrical connection module comprises: at least one first signal transmission part, the first signal transmission part comprising two first signal transmission terminals spaced apart from each other, and a first cable, one end of the first cable being electrically connected to one end of the two first signal transmission terminals, and the other end of the first cable extending out of a second end of the housing in the first direction; at least one second signal transmission portion, the second signal transmission portion comprising a single second signal transmission terminal, and a second cable, one end of the second cable being electrically connected to one end of the second signal transmission terminal and the other end of the second cable extending out of the second end of the housing; Furthermore, the second end of the housing is provided with a first through hole group and a second through hole group, the first through hole group includes: at least one first through hole for the first cable in the electrical connection module to pass through, and the second through hole group includes: at least one second through hole for the second cable in the electrical connection module to pass through.

2. The connector according to claim 1, characterized in that: The electrical connection module includes a plurality of the first signal transmission parts, the first through holes have a plurality of parts, and the first cables of the first signal transmission parts pass through different first through holes; The electrical connection module includes a plurality of the second signal transmission parts, and at least two second cables are passed through the second through hole.

3. The connector according to claim 2, characterized in that: Four to seven second cables are passed through the second through hole.

4. The connector according to claim 2, characterized in that: The second through hole group includes a plurality of second through holes, and at least two second cables are passed through each of the second through holes.

5. The connector according to claim 1, characterized in that: The first through hole group is arranged in a first area of ​​the second end of the housing, the second through hole group is arranged in a second area of ​​the second end of the housing, and the second area is located on one side of the first area in the second direction; The second direction is perpendicular to the first direction.

6. The connector according to claim 1, characterized in that: The gap between the outer surface of the first cable and the wall of the first through hole is s1,0 <s1≤0.8mm; The gap between the outer surface of the second cable and the wall of the second through hole is s2,0 <s2≤0.8mm。 7. The connector according to claim 1, characterized in that: The wall surface of the first through hole includes a plane and / or an arc-shaped surface. When the wall surface of the first through hole includes a plane, a rounded corner is formed between the plane and an adjacent surface. The wall surface of the second through hole includes a plane and / or an arc-shaped surface. When the wall surface of the second through hole includes a plane, a rounded corner is formed between the plane and an adjacent surface.

8. The connector according to claim 1, characterized in that: The shell comprises a shell body and a back cover, wherein one end of the shell body along the first direction is fixedly connected to the back cover; wherein the other end of the shell body constitutes a first end of the shell, the back cover constitutes a second end of the shell, and the shell is configured as a shielding structure; The housing also includes: A fastening structure, the fastening structure is arranged on the shell body and is used to fix the shell on a mounting component, the shell having a mounting surface facing the mounting component; A locking structure, the locking structure being arranged on the outer end surface of the rear cover and being used for pressing the mounting surface of the housing against the surface of the mounting component facing the housing in the third direction; Wherein, the third direction is perpendicular to the first direction and perpendicular to the installation surface of the housing.

9. The connector according to claim 8, characterized in that: The locking structure comprises a locking seat, which is fastened to the mounting component through a fastener penetrating the locking seat, so that the mounting surface of the housing can be pressed against the surface of the mounting component.

10. The connector according to claim 8, characterized in that: The fastening structure includes a plurality of crimping parts, the plurality of crimping parts are arranged at intervals on a plane perpendicular to the third direction, and each of the plurality of crimping parts includes a crimping body and a shoulder structure, the crimping body is connected to the shell body through the shoulder structure, and the shoulder structure protrudes from the outer peripheral surface of the crimping body; Among them, in each of the crimping parts, the crimping body is inserted into the inside of the mounting component, and the part of the shoulder structure protruding from the crimping body has a contact surface, and the abutment surface abuts against the surface of the mounting component facing the outer shell; the abutment surface of the shoulder structure in the multiple crimping parts constitutes the mounting surface of the outer shell.

11. The connector according to any one of claims 1 to 10, characterized in that: The first cable includes two paired signal cores, and the two signal cores of the first cable in the first signal transmission portion are electrically connected to two first signal transmission terminals respectively; The second cable includes a single signal core, and the signal core of the second cable in the second signal transmission portion is electrically connected to a single second signal transmission terminal.

12. A communication device, characterized in that: comprising a circuit board, a data processing module and a connector as claimed in any one of claims 1 to 11, and further comprising an additional connector; The additional connector and the data processing module are respectively fixed and electrically connected to the circuit board, so that the additional connector and the data processing module are electrically connected through the circuit board; The other end of the first cable and the other end of the second cable are both electrically connected to the additional connector, so that the first signal transmission part of the connector is electrically connected to the data processing module through the first cable and the additional connector in sequence, and the second signal transmission part is electrically connected to the data processing module through the second cable and the additional connector in sequence.

13. The communication device according to claim 12, characterized in that On a plane perpendicular to the thickness direction of the circuit board, the additional connector is located between the connector and the data processing module.

14. The communication device according to claim 12, characterized in that The communication device also includes a mounting component and a fastener. When the connector includes a locking structure and the locking structure includes a locking seat, a locking portion is provided on the mounting component, and the fastener penetrates the locking seat and is fastened in the locking portion of the mounting component.

15. The communication device according to claim 14, characterized in that The locking seat is provided with a threaded hole, the locking part is also provided with a threaded hole, the fastener is provided with threads, and the fastener passes through the threaded hole of the locking seat and the threaded hole of the locking part in sequence, and the mounting surface of the shell is pressed against the surface of the mounting component through the cooperation of the threaded structure.

16. The communication device according to any one of claims 12 to 15, characterized in that: The communication device comprises a plurality of the connectors, and when the connectors comprise rear covers, the rear covers of at least two of the connectors are arranged as an integrated structure.

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