Communication module and electronic device

Abstract

A communication module and an electronic device. The communication module comprises a housing and a printed circuit board assembly. An insertion end of the printed circuit board assembly forms an electrical interface. The housing comprises a first connector in communication with a cavity therein, with an interface of the first connector being arranged facing the insertion end. In an insertion / extraction direction, the first connector can switch between a first operating position and a second operating position relative to the housing. When located at the first operating position, the first connector can communicate and mate with a second connector on a device body side, and when located at the second operating position, the first connector does not communicate and mate with the second connector. After the communication module is inserted into an optical cage, the electrical interface thereof can mate with an electrical interface connector on the device body side to implement electrical signal communication; in addition, by adjusting the operating position of the first connector, the liquid-cooling heat dissipation function of the communication module can be enabled, thereby satisfying the operational reliability requirements of the communication module. In practical applications, the communication module can also be applied to an air-cooling device architecture and has good adaptability.

Description

Communication module and electronic device

[0001] The present application claims priority to the Chinese patent application No. 202510092504.9, filed on January 20, 2025, and entitled "A communication module and electronic device", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] Embodiments of the present application relate to the technical field of liquid-cooled electrical equipment, in particular to a communication module and electronic device. BACKGROUND

[0003] With the development of electrical equipment performance, in order to ensure the stable and reliable operation of the equipment, liquid cooling technology is widely used. Taking optical communication equipment as an example, the capacity of the equipment is increasing, and the power density of the optical module is also increasing. The traditional air cooling cannot meet the heat dissipation requirements of the high-power optical module. Immersion liquid cooling technology can provide good heat dissipation capacity, but there are problems such as high cost of air-tight protection of optical coupling path, poor maintainability, and environmental protection of immersion liquid. SUMMARY

[0004] Embodiments of the present application provide a communication module and electronic device, which can effectively improve the heat dissipation effect of the communication module through structural optimization.

[0005] The first aspect of the embodiments of the present application provides a communication module for pluggable adaptation with an equipment main body. The communication module includes a shell and a printed circuit board assembly. At least a part of the printed circuit board assembly provided with a heating device is located in the shell. An insertion end of the printed circuit board assembly forms an electrical interface, which is used for electrical connection with a mating electrical interface on the side of the equipment main body. The shell includes a hollow cavity capable of containing a liquid cooling medium, and two first connectors respectively communicating with the hollow cavity. The interfaces of the first connectors are arranged towards the insertion end. In the plugging direction, the first connectors can be switched between a first working position and a second working position relative to the shell. When located in the first working position, the first connectors can be adapted with the second connectors on the side of the equipment main body. When located in the second working position, the first connectors are not adapted with the second connectors. That is, the interface of the first connector located in the first working position is closer to the insertion end of the communication module than the interface of the first connector located in the second working position. In this way, when the first connector is moved and switched to the first working position, it can be adapted with the second connector on the side of the equipment main body. The low-temperature liquid cooling medium can enter the hollow cavity of the shell of the communication module, exchange heat with the wall surface of the shell, and then the high-temperature liquid cooling medium flows out of the shell of the communication module. Exemplarily, the communication module can be an optical module or an electrical module.

[0006] With this setup, taking an optical module as an example, after the optical module is inserted into the optical cage, the electrical interface on the PCBA mates with the electrical connector on the main body of the device, achieving electrical signal communication. Simultaneously, based on the first connector, which can switch between the first and second working positions in the insertion / removal direction, its working position can be adjusted according to application needs. In application scenarios, the first connector can be moved relative to the housing to the first working position. By enabling the liquid cooling function of the optical module, heat generated by internal components can be quickly dissipated, effectively improving the heat dissipation capacity of the optical module and providing technical assurance for meeting the heat dissipation requirements of high-power optical modules. Furthermore, during the optical module insertion process, the optical module and the main body first achieve electrical connection, and then the liquid cooling connector is connected. This allows the presence pin to be triggered after the electrical interface mates with the docking interface, establishing communication, power supply, and other initialization work with the system before the liquid cooling connector is connected. In other words, the electrical interface side stabilizes in place before the liquid cooling connector side, enabling rapid circuit initialization.

[0007] Based on the first aspect, this application also provides a first implementation of the first aspect: the housing includes a mounting recess communicating with a hollow cavity, the opening of the mounting recess facing the insertion side of the communication module, and a first sealing ring and a second sealing ring are provided on the housing; the first outer shell of the first connector has a variable cross-section outer peripheral surface, with a stepped surface between the large-size segment and the small-size segment of the outer peripheral surface, the small-size segment passing through the central hole of the first sealing ring and the second sealing ring and inserted into the mounting recess, and a sealing protrusion ring is provided on the small-size segment; when the first connector is in the first working position, the sealing protrusion ring and the second sealing ring are radially pressed together for sealing; when the first connector is in the second working position, the stepped surface and the first sealing ring are pressed together for sealing in the insertion and removal direction. In practical applications, when the first connector moves to the second working position, the sealing protrusion ring separates from the second sealing ring, and the first sealing ring can be compressed and elastically deformed under the action of the stepped surface, achieving a seal between the first connector and the housing. When the first connector moves to the first working position, the stepped surface separates from the first sealing ring, and the second sealing ring can be compressed and elastically deformed under the action of the sealing protrusion ring, achieving a seal between the first connector and the housing. In this way, based on the configuration of two sealing rings, an effective seal can be achieved relative to the communication module housing when the first connector moves to switch working positions, which has the characteristics of simple and reliable structure.

[0008] For example, the sealing ring may be integrally formed with the first housing; for other examples, the sealing ring may be assembled and fixed with a small segment of the first housing.

[0009] Based on the first embodiment of the first aspect, this application also provides a second embodiment of the first aspect: a positioning protrusion is fixedly provided on the side wall of the mounting recess, the positioning protrusion being located between a first sealing ring and a second sealing ring spaced apart. When the first connector is in the first working position, the sealing ring abuts against the positioning protrusion to prevent the first connector from disengaging from the mounting recess. Thus, when the first connector moves to the first working position, the sealing ring on the first connector can abut against the positioning protrusion on the housing side, facilitating operator control of the first connector's movement distance; simultaneously, it prevents abnormal disengagement between the first connector and the housing, facilitating on-site management.

[0010] In practical applications, the positioning protrusion can be integrally formed with the housing, or the positioning protrusion can be separately processed, assembled, and fixed to the side wall of the mounting recess.

[0011] Based on the first embodiment of the first aspect, or the second embodiment of the first aspect, this application also provides a third embodiment of the first aspect: the first sealing ring is embedded in a sealing groove formed on the end face of the housing on the outer periphery of the opening of the mounting recess, and the second sealing ring is embedded in a sealing groove formed on the side wall of the mounting recess. In this way, when the first connector moves to switch working positions, both the first and second sealing rings can remain fixed to the housing side, preventing the moving first connector from being carried away and affecting the sealing reliability.

[0012] Based on the first, second, or third implementation of the first aspect, this application also provides a fourth implementation of the first aspect: the housing further includes a limiting member, which is rotatably disposed on the housing and has a limiting portion extending toward the outer peripheral surface of the large-size segment; a limiting groove is formed on the outer peripheral surface of the large-size segment; when the first connector is in the first working position, the limiting portion can rotate and be housed within the limiting groove, forming a limiting position for the first connector to move along the insertion direction, so that the first connector can be held relative to the housing in the second working position; simultaneously, when the first connector is in the second working position, the limiting portion can rotate and abut against the stepped surface, forming a limiting position that restricts the first connector from moving toward the mounting recess, cooperating with the stop limiting pair formed by the positioning protrusion and the sealing protrusion, so that the first connector can be held relative to the housing in the first working position. This effectively improves the stability and reliability of the dynamic fit relationship of the first connector.

[0013] Based on the fourth implementation of the first aspect, this application also provides a fifth implementation of the first aspect: the limiting member is disposed above the limiting groove. In this way, the limiting member can be kept in a limiting state by its own weight, preventing the limiting part from abnormally disengaging from the limiting groove and improving the reliability of the communication module. In practical applications, the limiting member is located directly above the axis of the first connector, or it can be laterally offset from the axis of the first connector.

[0014] Based on the fourth or fifth implementation of the first aspect, this application also provides a sixth implementation of the first aspect: the limiting groove is an annular groove formed along the outer peripheral surface of the large-size segment. With this configuration, the first connector can be adapted and limited by the limiting component in the entire circumference, resulting in better assembly manufacturability; at the same time, it can reasonably control processing costs.

[0015] Based on the first aspect, or the first implementation of the first aspect, or the second implementation of the first aspect, or the third implementation of the first aspect, or the fourth implementation of the first aspect, or the fifth implementation of the first aspect, or the sixth implementation of the first aspect, this application also provides a seventh implementation of the first aspect: the first connector is disposed on the housing on the insertion side away from the communication module. In this way, the liquid interface docking position between the communication module side and the device body side is located away from the electrical interface. If abnormal leakage occurs at the docking position, the potential adverse effects of leakage on the electrical connection link can be avoided, ensuring the reliability of device operation.

[0016] A second aspect of this application provides an electronic device comprising a device body and a communication module inserted into the device body. The communication module is as described above. The device body includes a housing, a single board, and a second connector. The second connectors are arranged in pairs and connected to the liquid supply branch and the liquid return branch of the device body, respectively. The single board is provided with a docking electrical interface. The electrical interface of the communication module is adapted to connect with the docking electrical interface, and the first connector of the communication module can be mated and connected with the corresponding second connector. This arrangement can effectively dissipate the heat generated by the communication module, effectively avoid the risk of overheating damage caused by the rise in temperature of electronic components, and ensure the operational reliability of the communication module.

[0017] For example, the electrical interface is a gold finger pin set on the circuit board insertion end of the communication module, and the main body of the device includes an electrical connector set on the single board. The mating electrical interface is an electrical connector containing a metal spring.

[0018] Based on the second aspect, this application also provides a first implementation of the second aspect: the first connector includes a first outer shell, a first sealing element, a third sealing ring, and a first elastic element. The first outer shell has two openings communicating with the inner cavity, one of which communicates with the hollow cavity, and the other opening is an interface with the first connector. The first sealing element is built into the first outer shell, and the third sealing ring is disposed on the first outer shell. The first sealing element can be inserted into the central hole of the third sealing ring and radially presses against it for sealing. A first limiting part is provided on the first outer shell, and the first elastic element is pre-compressed and disposed between the first limiting part and the first sealing element. When the first sealing element is pressed and moves into the first outer shell, it can push the first elastic element to generate elastic deformation, thereby forming a restoring force acting on the first sealing element. The second connector includes a second outer shell, a second sealing element, a fourth sealing ring, a fifth sealing ring, and... The second outer shell includes a second elastic element and a fixed seal. It comprises two openings communicating with the inner cavity, one of which connects to the main body of the device, and the other serves as the interface for the second connector. The second seal and the fixed seal are housed within the second outer shell, with the second seal fitted onto the fixed seal. The second seal has an annular sealing portion. A fourth sealing ring is disposed on the second outer shell, and a fifth sealing ring is disposed on the annular sealing portion of the second seal. The second seal can be inserted into the central hole of the fourth sealing ring and radially press against it for sealing. The sealing portion can be inserted into the central hole of the fifth sealing ring and radially press against it for sealing. A second limiting portion is provided on the second outer shell. The second elastic element is pre-compressed and positioned between the second limiting portion and the second seal. When the second seal is pressed and moves into the second outer shell, it can push the second elastic element to produce elastic deformation, thereby generating a restoring force acting on the second seal. This achieves self-sealing of the first and second connectors, featuring a simple and reliable structure.

[0019] Based on the first embodiment of the second aspect, this application also provides a second embodiment of the second aspect: the first housing on the interface side can be inserted into the second housing on the interface side to press against the second sealing member moving into the second housing, and the first housing can be inserted into the central hole of the fourth sealing ring and radially pressed to seal, while the fixing sealing member can press against the first sealing member moving into the first housing. With this configuration, in the mating and fitting state, the housing of the first connector is inserted into the housing of the second connector, which can reasonably control the radial dimension of the assembly state, reduce the overall assembly space occupied, and meet the trend design requirements of high-density product layout.

[0020] For example, the electronic device can be a switch, router, wavelength division multiplexing (WDM) optical communication device, or a computing device such as a server. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0022] Figure 2 is a schematic diagram of the insertion relationship of the optical module shown in Figure 1;

[0023] Figure 3 is an AA cross-sectional view of the optical module shown in Figure 2;

[0024] Figure 4 is an exploded view of the assembly of a device body provided in an embodiment of this application;

[0025] Figure 5 is a schematic diagram of an electrical interface provided in an embodiment of this application;

[0026] Figure 6 is a cross-sectional view of BB in Figure 4;

[0027] Figure 7 is a schematic diagram of the optical module insertion with the first connector located at the second working position according to an embodiment of this application;

[0028] Figure 8 is a schematic diagram of the insertion of the optical module with the first connector located at the first working position according to an embodiment of this application;

[0029] Figure 9 is a schematic diagram of the adaptation relationship between another electrical interface and a mating electrical interface provided in an embodiment of this application;

[0030] Figure 10 is a schematic diagram of the assembly relationship between a first connector and a housing provided in an embodiment of this application;

[0031] Figure 11 is a schematic diagram of another usage state of the first connector shown in Figure 10;

[0032] Figure 12 is a partial cross-sectional view of CC in Figure 10;

[0033] Figure 13 is a structural schematic diagram of a first connector provided in an embodiment of this application;

[0034] Figure 14 is a view of the first seal in section 9 from direction D;

[0035] Figure 15 is a structural schematic diagram of a second connector provided in an embodiment of this application;

[0036] Figure 16 is a view of the second limiting block in Figure 15 from direction E;

[0037] Figure 17 is a schematic diagram of the usage state of a connector assembly provided in an embodiment of this application. Detailed Implementation

[0038] This application provides an electronic device architecture scheme for a pluggable liquid-cooled optical module, which effectively improves the heat dissipation capacity of the optical module while ensuring good reliability.

[0039] In communication links, cables can connect to optical modules assembled on the communication equipment side via connectors at their ends, and communication interconnection is achieved by inserting the optical modules into the equipment side. Optical modules are crucial components in optical communication, comprising electrical interfaces and optical interfaces. The electrical interface is used to connect with electrical connectors on the circuit board (board) of the communication equipment, while the optical interface (fiber optic interface) is used to connect to fiber optic ferrules. In different application scenarios, the optical module can convert electrical signals input from the electrical interface into optical signals for output, or vice versa. Alternatively, it can convert optical signals input from the optical interface into electrical signals for output, or simultaneously convert both electrical and optical signals input from the electrical interface into electrical signals for output. Additionally, cables can also connect to the equipment side via electrical modules at their ends, achieving communication interconnection through electrical signal transmission.

[0040] Please refer to Figure 1, which is a structural schematic diagram of an electronic device 100 provided in an embodiment of this application. The electronic device 100 includes a device body 20 and an optical module 10. The optical module 10 is inserted into an optical cage 210 on the side of the device body 20, realizing the connection between the electrical interface of the optical module 10 and the single board of the device body 20. A cable (not shown in the figure) can be inserted into the optical port connector 110 of the optical module 10 through its end connector, realizing the connection between the optical fiber and the optical interface of the optical module 10. The figure illustrates the relative positional relationship between the optical module 10 and the device body 20 using one optical module 10 as an example to simplify the illustration. Please also refer to Figure 2, which is a schematic diagram of the insertion relationship of the optical module 10 shown in Figure 1. For ease of description, the insertion and removal direction of the optical module 10 is shown by arrow X in the figure, and the side where the electrical interface of the optical module 10 is located is defined as the insertion end.

[0041] In real-world scenarios, the demand for high-bandwidth, high-speed data transmission is constantly increasing, necessitating robust heat dissipation capabilities for optical modules to ensure stable operation. Traditional air-cooling equipment is no longer sufficient to meet the heat dissipation requirements of higher-power optical modules. Immersion liquid cooling technology can provide excellent heat dissipation, but it presents challenges such as higher packaging costs due to the need for hermetic protection of the optical coupling path, poor maintainability, and environmental impact due to the immersion liquid.

[0042] Based on this, this application provides an optical module for plugging and unplugging into the main body of a device. The optical module includes a housing and a printed circuit board assembly (PCBA). At least the portion of the PCBA containing a heating element is located in the housing, and the insertion end of the PCBA forms an electrical interface for electrical connection with the docking electrical interface on the main body of the device. The housing of the optical module includes a hollow cavity for accommodating a liquid cooling medium and two first connectors respectively communicating with the hollow cavity. The interfaces of the first connectors are arranged facing the insertion end. In the plugging and unplugging direction, the first connectors can switch between a first working position and a second working position relative to the housing. When in the first working position, the first connectors can be mutually adapted with the second connector on the main body of the device. When in the second working position, the first connectors are not mutually adapted with the second connector on the main body of the device.

[0043] With this configuration, after the optical module is inserted into the optical cage, the electrical interface on the PCBA mates with the electrical connector on the main body of the device, enabling electrical signal communication. Simultaneously, based on the first connector, which can switch between a first working position and a second working position in the insertion / removal direction, the working position of the first connector can be adjusted according to application needs. In application scenarios, the first connector can be moved relative to the housing to switch to the first working position, and the first and second connectors can be interconnected to form a liquid-cooled working fluid circulation. In this way, the low-temperature liquid-cooled working fluid can enter the hollow cavity of the optical module's housing, exchange heat with the housing wall, and then the high-temperature liquid-cooled working fluid flows out of the optical module's housing. By enabling the liquid-cooled heat dissipation function of the optical module, the heat generated by the internal components can be quickly removed, effectively improving the heat dissipation capacity of the optical module and providing technical assurance for meeting the heat dissipation requirements of high-power optical modules. Meanwhile, during the optical module insertion process, the optical module and the main body of the device are first electrically connected, and then the liquid cooling connector is docked. In this way, after the electrical interface is docked with the docking interface, the presence pin can be triggered, and the communication, power supply and other initialization work with the system can be established before the liquid cooling connector is docked. In other words, the electrical interface side is stable in place before the liquid connector side, so that the circuit initialization can be completed quickly.

[0044] To better understand the technical solutions and effects of this application, without loss of generality, specific embodiments will be described in detail below with reference to the accompanying drawings. Please refer to Figure 3, which is a structural schematic diagram of an optical module provided in an embodiment of this application. This figure is formed from the AA section position shown in Figure 2.

[0045] The optical module 10 includes a housing 130, an optical port connector 110, a PCBA 120, and a first connector 140. As shown in Figures 2 and 3, the optical port connector 110 and the PCBA 120 are located inside the housing 130, which has a hollow cavity 130a for containing liquid working fluid. The two first connectors 140 are connected to the input port and the output port of the hollow cavity 130a, respectively. The first connector 140 located at the input port is the input connector, and the first connector 140 located at the output port is the output connector, so that the liquid cooling working fluid can flow in the hollow cavity 130a to achieve liquid cooling heat dissipation.

[0046] In this embodiment, PCBA 120 includes a circuit board 121 and a heat-generating device 122 disposed on the circuit board 121. Here, the heat-generating device 122 refers to a device that generates heat during the operation of the optical module, such as, but not limited to, optical chips, lasers, power modules, optical digital signal processors (ODSPs), CDRs, drivers, trans-impedance amplifiers (TIAs), or integrated coherent transceivers (ICTRs).

[0047] The optical connector 110 is connected to one end of the circuit board 121 to form an optical interface for connection with a cable connector. The other end of the circuit board 121 has an electrical interface 1211, which is located at the insertion end of the optical module 10 and is used for plugging and unplugging the electrical connector on the single board on the side of the device body 20.

[0048] Please also refer to Figure 4, which is an exploded view of the assembly of a device body provided in an embodiment of this application.

[0049] As shown in Figure 4, the main body 20 of the device has a single board 220 inside the outer shell 240. An electrical connector 230 with a docking electrical interface and an optical cage 210 are installed on the single board 220. The insertion port of the optical cage 210 is exposed outside the outer shell 240. After the optical module 10 is inserted into place, the electrical interface at the end of the circuit board 121 is interconnected with the docking electrical interface of the electrical connector 230.

[0050] In a specific implementation, the electrical interface 1211 can be a gold finger structure on the circuit board 121, and correspondingly, the mating electrical interface 2301 can be a metal spring of the electrical connector 230. Please refer to Figures 5 and 6 together, where Figure 5 is a structural schematic diagram of an electrical interface provided in an embodiment of this application, and Figure 6 is a BB cross-sectional view in Figure 4.

[0051] For example, the gold finger structure shown in Figure 5 includes three pins of different lengths: a first pin 1211a with a first length L1, a second pin 1211b with a second length L2, and a third pin 1211c with a third length L3. The first pin 1211a can be a paired signal pin used to transmit high-speed differential signals or management signals; the third pin 1211c can be a ground pin, arranged beside the paired first pins 1211a to form a ground link that can shield against signal crosstalk; and the second pin 1211b can be a power supply pin. It should be understood that the functional pins of the gold finger structure can be configured according to the corresponding protocol definition. For example, but not limited to, the electrical interface 1211 on the optical module 10 side can be a gold finger structure configured on both sides of the circuit board 121; this embodiment of the application does not limit this.

[0052] As shown in Figure 6, the electrical connector 230 includes a housing 2302. First metal springs 2301a and second metal springs 2301b are arranged on both sides of the insertion cavity 23021 of the housing 2302. The contacts of the first metal springs 2301a are located near the opening of the insertion cavity, and the contacts of the second metal springs 2301b are located near the inner side of the insertion cavity. After the optical module is inserted, the gold finger pins of the insertion end of the circuit board 121 can be electrically connected to the corresponding metal springs on the side of the electrical connector 230 by pressing against each other. Specifically, the first metal springs 2301a can be electrically connected to the first pin 1211a on the optical module side, and can also be electrically connected to the second pin 1211b on the optical module side. Each second metal spring 2301b can be electrically connected to the third pin 1211c on the optical module side. After the electrical connector 230 is assembled onto the single board 220 shown in Figure 4, each metal spring can be soldered to the corresponding pads (not shown in the figure) on the surface of the single board 220 via the pins 2303 located at the bottom of the housing 2302. Further details are omitted here.

[0053] It is understood that after the electrical interface is connected to the mating electrical interface, a detection pin can be triggered, for example, but not limited to, based on any one of the first pin 1211a, the second pin 1211b, and the third pin 1211c. Alternatively, a detection pin can be set independently to establish communication, power supply, and other initialization work with the system before the liquid cooling connector is connected. The specific details can be determined according to the overall product setup requirements, and this application embodiment does not limit this.

[0054] In this embodiment, the interfaces of both first connectors 140 are oriented towards the insertion end of the optical module 10. Correspondingly, the device body 20 includes a pair of second connectors 250, with the interfaces of the second connectors 250 facing the side where the optical module 10 is located. Of the two pairs of second connectors 250, the second connector 250 adapted to and connected to the input connector on the optical module 10 side is a liquid outlet connector, and the second connector 250 adapted to and connected to the output connector on the optical module 10 side is a liquid return connector. After being connected, they can form a liquid cooling working fluid circulation for the corresponding optical module. Here, each second connector 250 can partially extend out of the outer shell 240 of the device body 20, or it can be completely built into the outer shell 240. That is, the first connector 140 on the optical module 10 side is inserted into the outer shell 240 through the corresponding opening 241 on the outer shell 240 and adapted to and connected to the corresponding second connector 250.

[0055] Preferably, the first connector 140 is located on the housing 130 away from the side where the optical module is inserted. The liquid interface docking position between the optical module side and the main body of the device is far away from the electrical interface. If abnormal leakage occurs at the docking position, the adverse effects of leakage on the electrical connection link can be avoided, ensuring the reliability of the device operation.

[0056] As shown in Figure 3, the housing 130 may include a first housing 131 and a second housing 132 connected together, which are joined to form a housing 130 capable of accommodating internal components. The circuit board 121 has one side facing the heating element 122 opposite to the first housing 131, and the other side facing the second housing 132. A hollow cavity 130a can be disposed within the first housing 131. Accordingly, the heat generated by the heating element 122 is transferred to the first housing 131 opposite to it and then exchanged with the liquid cooling medium within the hollow cavity 130a. Thus, the low-temperature liquid cooling medium can enter the hollow cavity 130a of the optical module 10 housing through the input port, exchange heat with the housing wall, and then the high-temperature liquid cooling medium flows out of the optical module housing through the output port.

[0057] Typically, the heat-generating device 122 on the circuit board 121 is positioned close to the first housing 131, resulting in a shorter heat transfer path and better heat exchange efficiency. To further enhance the heat exchange capability of the optical module, in other implementations, the second housing 132 of the housing 130 can also be provided with a hollow cavity (not shown in the figure) capable of accommodating liquid cooling medium, so that heat from the other side of the PCBA 120 can be exchanged to the liquid cooling medium in the hollow cavity of the second housing 132. In this way, the heat generated by the heat-generating device on the PCBA 120 can be exchanged to the liquid cooling medium in the hollow cavity 130a on the first housing 131 side, supplemented by simultaneous heat dissipation on the second housing 132 side, which can further improve the heat exchange efficiency. To reduce thermal resistance, the first housing 131 and the second housing 132 can be bonded to the PCBA 120 using a thermally conductive pad (not shown in the figure) or thermally conductive gel to quickly achieve heat conduction. The embodiments in this application are not limited.

[0058] In a specific implementation, the hollow cavity of the second shell 132 can communicate with the hollow cavity 130a of the first shell 131 to form a liquid cooling working fluid circulation through the first connector 140 on the side of the first shell 131. In this way, the cryogenic liquid cooling working fluid can simultaneously enter the second shell 132, ensuring the heat exchange efficiency of the second shell 132. The corresponding liquid circuit connection can also be achieved through the structure of the first shell 131 and the second shell 132 themselves; this embodiment of the application does not limit this.

[0059] In other possible implementations, the hollow cavity of the second housing 132 can also be connected to the second connector correspondingly provided on the side of the main body 20 through an independently configured first connector (not shown in the figure) to form a liquid cooling working fluid circulation independent of the hollow cavity 130a on the side of the first housing 131.

[0060] In this embodiment, the insertion and removal of the optical module 10 can realize the switching of the circuit, and the liquid cooling function of the optical module 10 can be enabled based on the first connector switching between the first working position and the second working position in the insertion / removal direction X. After the optical cage 210 is inserted, the circuit between the optical module 10 and the device body 20 is first made conductive, and then the liquid circuit is made conductive. Please refer to Figures 7 and 8 together, where Figure 7 is a schematic diagram of the optical module insertion with the first connector located in the second working position according to the embodiment of this application, and Figure 8 is a schematic diagram of the optical module insertion with the first connector located in the first working position according to the embodiment of this application.

[0061] As shown in Figure 7, the optical module 10 is inserted into the optical cage 210, and the electrical interface 1211 of the optical module 10 is inserted into the electrical connector 230 of the device body 20 and electrically connected to the mating electrical interface 2301 of the electrical connector 230. In this state, the first connector 140 of the optical module 10 is located in the second working position, as shown by dimension mark M in Figure 7. There is a gap between the interface of the first connector 140 and the interface of the second connector 250 on the side of the device body 20, and the first connector 140 and the second connector 250 are not interconnected.

[0062] As shown by the dashed arrow in the figure, relative to the housing 130 of the optical module 10, the first connector 140 can switch between a first working position and a second working position in the insertion / removal direction. That is, the optical module provided in this embodiment can activate liquid cooling according to the application scenario and actual operating conditions. Specifically, the first connector 140 can move relative to the housing 130 in the insertion / removal direction to the first working position shown in Figure 8. In this state, the first connector 140 and the second connector 250 are interconnected and compatible. In this way, the low-temperature liquid cooling medium can enter the hollow cavity of the optical module's housing, exchange heat with the housing wall, and then the high-temperature liquid cooling medium flows out of the optical module's housing, forming a liquid cooling medium circulation.

[0063] In the liquid-cooled equipment architecture scenario, the first connector 140 can be located at the first working position as shown in Figure 8. Based on the good heat dissipation capability of the optical module 10, it can meet the heat dissipation requirements of high-power optical modules and is in line with the performance evolution trend of optical modules.

[0064] As shown in Figures 7 and 8, the compatible gold fingers and metal springs are arranged in two rows along the insertion / removal direction and are located on both sides of the circuit board 121. In other specific implementations, the compatible gold fingers (1211) and metal springs (2301) can be arranged in one row along the insertion / removal direction. Please refer to Figure 9, which is a schematic diagram of the adaptation relationship between another electrical interface and a mating electrical interface provided in an embodiment of this application.

[0065] As shown in Figure 9, the compatible electrical interface 1211 (metal finger) and the mating electrical interface 2301 (metal spring) are arranged in a row along the insertion / removal direction and are located on both sides of the circuit board 121. Of course, in other possible implementations, they can also be arranged on one side of the circuit board 121. The specific arrangement can be determined according to the overall product design requirements, and this application embodiment does not limit this.

[0066] During the insertion of the optical module 10, both good insertion / removal guidance and mechanical stopping are required. For the guiding function, a guiding structure can be provided between the first connector 140 and the second connector 250. This guiding structure can be located on either side or in the middle; there is no limitation on its location. Alternatively, this guiding structure can be based on a traditional guiding adapter structure between the optical module and the optical cage, depending on the specific needs. For mechanical stopping, a traditional mechanical stopping structure between the optical module and the optical cage can be used to ensure proper insertion of the optical module 10, providing good adaptability.

[0067] Please refer to Figures 10 and 11 together. Figure 10 is a schematic diagram of the assembly relationship between the first connector and the housing according to an embodiment of this application, where the first connector 140 is located in the second working position. Figure 11 is a schematic diagram of another usage state of the first connector 140 shown in Figure 10, where the first connector is located in the first working position. To simplify the drawings, only the outline of the outer shell (first outer shell 1405) of the first connector 140 is shown in the figures, and the internal structure and configuration of the first connector are not specifically illustrated.

[0068] In this embodiment, the outer peripheral surface of the first housing 1405 of the first connector 140 has a variable cross-section, including a large-size segment 1451 and a small-size segment 1452, with a stepped surface 1453 between the large-size segment 1451 and the small-size segment 1452. The interface of the first connector 140 (not shown in the figure) is located in the large-size segment 1451 for mutual adaptation with the second connector side. The small-size segment 1452 can be partially inserted into the mounting recess 130b of the housing 130 to communicate with the hollow cavity 130a of the optical module housing 130. It is understood that the assembly relationship between the two first connectors and the housing can adopt the same structure; therefore, the object described in the figure is illustrated by an example of one first connector 140.

[0069] The mounting recess 130b of the housing 130 has its opening facing the insertion side and is provided with a first sealing ring 133 and a second sealing ring 134. A small segment 1452 of the first housing 1405 is inserted into the mounting recess 130b through the central holes of the first sealing ring 133 and the second sealing ring 134. A sealing protrusion 1454 is provided on the small segment 1452. In the insertion direction, the first sealing ring 133 is opposite to the stepped surface 1453 of the first housing 1405 and can press against the stepped surface 1453 when it is in the second working position shown in FIG. 10 to seal. In other words, when the first connector 140 moves to switch to the second working position, the first sealing ring 133 can be compressed and elastically deformed under the action of the stepped surface 1453 to achieve a seal between the first connector 140 and the housing 130. In the radial direction perpendicular to the insertion direction, the second sealing ring 134 can be adapted to the sealing protrusion 1454, and can radially press against the sealing protrusion 1454 located in the first working position shown in Figure 11 to create a seal. That is, when the first connector 140 moves to the first working position, the stepped surface 1453 separates from the first sealing ring 133, and the second sealing ring 134 can be compressed and elastically deformed under the action of the sealing protrusion 1454, thereby achieving a seal between the first connector 140 and the housing 130. Of course, when the first connector 140 moves to the second working position, the sealing protrusion 1454 separates from the second sealing ring 134.

[0070] In a specific implementation, the sealing ring 1454 can be integrally formed with the first outer shell 1405, or it can be separately formed and then assembled and fixed to the small segment 1452 of the first outer shell 1405.

[0071] To improve the operability of the movable switching work position, a positioning protrusion 135 can be fixedly provided on the side wall of the mounting recess 130b of the housing 130. The positioning protrusion 135 is located between the spaced-apart first sealing ring 133 and second sealing ring 134, and can form a stop and limit pair with the sealing protrusion 1454. In this way, when the first connector 140 moves to the first working position, the sealing protrusion 1454 can abut against the positioning protrusion 135, which makes it convenient for the operator to control the movement distance of the first connector 140; at the same time, it can prevent the first connector 140 from abnormally disengaging from the housing 130, which facilitates on-site management.

[0072] In practice, the positioning protrusion 135 can be integrally formed with the housing 130, or it can be separately formed and then assembled and fixed to the mounting recess 130b of the housing 130.

[0073] Furthermore, the housing 130 may also include a limiting member 136, and correspondingly, a limiting groove 1455 is formed on the outer peripheral surface of the large-size segment 1451 of the first housing 1405. Please refer to Figures 10, 11, and 12 together, wherein Figure 12 is a partial cross-sectional view (CC) of Figure 10. One end of the limiting member 136 is rotatably mounted on the housing 130, and the other end has a limiting portion 1361 extending toward the outer peripheral surface of the large-size segment 1451.

[0074] With the second working position shown in Figure 10 as the initial state, the limiting part 1361 of the limiting member 136 can be built into the limiting groove 1455 on the side of the first connector 140, forming a limit for the movement of the first connector 140 along the insertion direction, so that the first connector 140 is held in the second working position relative to the housing 130. When it is necessary to switch to the first working position, as shown in Figure 12, the limiting member 136 can be rotated to disengage from the limiting groove 1455, releasing the movement limit; after the first connector 140 moves away from the mounting recess 130b to the second working position shown in Figure 11, the limiting member 136 can be rotated to abut against the stepped surface 1453 of the first housing 1405, forming a limit that restricts the movement of the first connector 140 toward the mounting recess 130b, cooperating with the stop limiting pair formed by the positioning protrusion 135 and the sealing protrusion 1454, so that the first connector 140 is held in the first working position relative to the housing 130.

[0075] In a specific implementation, the limiting member 136 can be located above the limiting groove 1455. This way, based on its own weight, the limiting member 136 can maintain the state shown in Figure 12, avoiding the possibility of the limiting part 1361 abnormally disengaging from the limiting groove 1455, thus improving the reliability of the optical module. Here, "the limiting member 136 is located above the limiting groove 1455" includes the case where the limiting member 136 is directly above the axis of the first connector 140, and also includes the case where the limiting member 136 is laterally offset from the axis of the first connector 140; any situation where its own weight can prevent the limiting part 1361 from disengaging from the limiting groove 1455 is acceptable. This application does not limit the embodiments to this specific case.

[0076] The limiting groove 1455 on the side of the first connector 140 can be formed circumferentially along the outer periphery of the large-size segment 1451 of the first outer shell, as shown in Figure 12, that is, the limiting groove 1455 is an annular groove. In other specific implementations, the limiting groove 1455 can also be partially formed circumferentially on the outer periphery of the large-size segment 1451, as long as it can meet the requirement of the matching limiting member 136 to form a corresponding limiting.

[0077] In other possible implementations, the first sealing ring 133 and the second sealing ring 134 can be fitted into a sealing groove (not shown in the figure) on the housing 130, so that when the first connector moves to switch working positions, the first sealing ring 133 and the second sealing ring 134 can remain fixed to the housing side. For example, the second sealing ring 134 can be fitted into a sealing groove provided on the side wall of the mounting recess 130b, and the first sealing ring 133 can be fitted into a sealing groove provided on the end face of the positioning protrusion 135, or it can be fitted into a sealing groove provided on the end face of the housing 130 on the outer periphery of the opening of the mounting recess 130b. The specific details can be determined according to the overall product design requirements, and are not limited here.

[0078] It should be noted that the movement and switching of the first connector 140 working position can adopt different structural forms, which can be determined according to the overall product design requirements. This application embodiment does not limit this.

[0079] In practice, the first connector 140 and the second connector 250 can be inserted and mated to achieve fluid circuit connection. Under normal conditions where they are not mated, the first connector 140 and the second connector 250 are both quick-connect connectors that can achieve self-sealing.

[0080] Please refer to Figures 13, 14, 15, 16, and 17. Figure 13 is a structural schematic diagram of a first connector provided in an embodiment of this application. Figure 14 is a D-direction view of the first sealing element in Figure 9. Figure 15 is a structural schematic diagram of a second connector provided in an embodiment of this application. Figure 16 is an E-direction view of the second limiting block in Figure 15. Figure 17 is a schematic diagram of the usage state of a connector assembly provided in an embodiment of this application, which shows a docking state schematic diagram of the first connector shown in Figure 13 and the second connector shown in Figure 15.

[0081] As shown in Figure 13, the first connector 140 includes a first sealing element 1401, a third sealing ring 1402, a first spring 1403, a first limiting block 1404, and a first outer shell 1405. The first outer shell 1405 includes two openings that communicate with the inner cavity of the outer shell and can be fixedly connected to the optical module housing as a basic component. One of the two openings is used to communicate with the hollow cavity on the side of the housing, and the other opening is an interface adapted to the second connector.

[0082] In this embodiment, the first sealing member 1401 is built into the first housing 1405, and the third sealing ring 1402 is disposed on the first housing 1405. The first sealing member 1401 can move relative to the first housing 1405 to switch between a sealed state and an open state. When the first sealing member 1401 is in the sealed state, it can be inserted into the central hole of the third sealing ring 1402 and radially pressed against the third sealing ring 1402 to seal. When the first sealing member 1401 moves into the first housing 1405 until it disengages from the third sealing ring 1402, it switches to the open state.

[0083] As shown in Figure 13, the third sealing ring 1402 is fixed to the inner wall of the first housing 1405 near the interface side, for example, but not limited to, it can be embedded in a sealing groove (not shown) opened on the first housing 1405. Based on the radial pressure of the first sealing member 1401, the third sealing ring 1402 and the first housing 1405 achieve sealing synchronously. In other specific implementations, the third sealing ring 1402 is sealed to the end face of the first housing 1405, as long as the above-mentioned sealing function requirements can be met, and the embodiments of this application are not limited.

[0084] Accordingly, the first limiting block 1404 is fixed to the first outer shell 1405, and the first spring 1403 is pre-compressed and disposed between the first limiting block 1404 and the first sealing member 1401, so that the first sealing member 1401 is kept in a sealed state in the initial state (natural state when not properly mated with the second connector), that is, the first connector 140 is self-sealed. The first sealing member 1401 can be pressed inward to switch to the open state, further pushing the first spring 1403 to generate elastic deformation and store deformation energy to provide the reset force for the first sealing member 1401 to switch to the sealed state.

[0085] In a specific implementation, to improve the reliability of the state switching of the first sealing element 1401, as shown in Figures 13 and 14, a protrusion 14012 is further provided on the body 14011 of the first sealing element 1401. The protrusion 14012 extends toward the inner wall of the first housing 1405 and is spaced apart from the inner wall of the first housing 1405, providing a guiding function during the switching of the first sealing element 1401 between the sealed and open states. Furthermore, the number of protrusions 14012 can be multiple, spaced apart circumferentially, with an opening 14013 formed between adjacent protrusions 14012 to allow the passage of liquid working fluid. Further, the first spring 1403 can be disposed between the first limiting block 1404 and the protrusion 14012 of the first sealing element 1401 to maintain a reliable sealing state in the initial state of the first sealing element 1401.

[0086] In other specific implementations, the first spring 1403 can also be a first elastic element with other structural forms, such as a rubber element, or, for example, a metal sheet-like elastic element. The first limiting block 1404, as the limiting portion restricting the first elastic element, can also adopt other structural forms. For example, it can be a first limiting portion protruding inward from the body of the first housing 1405, and this first limiting portion can be integrally formed with the first housing. The specific implementation can be determined according to the overall product design, as long as the first limiting portion can be adapted to the first sealing member 1401 to restrict the function of the first elastic element. This application embodiment does not impose any limitations.

[0087] As shown in Figure 15, the second connector 250 includes a second sealing element 2501, a fourth sealing ring 2502, a fifth sealing ring 2503, a second spring 2504, a second limiting block 2505, a fixing sealing element 2506, and a second outer shell 2507. The second outer shell 2507 includes two openings that communicate with the inner cavity of the outer shell and can be fixedly connected to the main body of the equipment as a basic component. One of the two openings is used to communicate with the liquid cooling circuit (liquid supply branch and liquid return branch) on the side of the main body of the equipment, and the other opening is an interface adapted to the first connector.

[0088] In this embodiment, the second seal 2501 and the fixed seal 2506 are built into the second housing 2507. The second seal 2501 can move relative to the second housing 2507 and the fixed seal 2506, switching between a sealed state and an open state. The second seal 2501 is fitted onto the fixed seal 2506, and the second seal 2501 has an annular sealing portion 25011.

[0089] A fourth sealing ring 2502 is disposed on the second housing 2507, and a fifth sealing ring 2503 is disposed on the annular sealing portion 25011 of the second sealing member 2501. In the sealed state, the second sealing member 25011 can be inserted into the central hole of the fourth sealing ring 2502 and radially presses against it for sealing. The fifth sealing ring 2503, fixed on the annular sealing portion 25011, is fitted onto the sealing portion 25061 of the fixed sealing member 2506, and the sealing portion 25061 radially presses against the fifth sealing ring 2503 for sealing. Moving the second sealing member 2501 into the second housing 2507 switches it to the open state and disengages it from the fourth sealing ring 2502.

[0090] As shown in Figure 15, the fourth sealing ring 2502 is fixed to the inner wall of the second housing 2507 near the interface side, for example, but not limited to, being able to be embedded in a sealing groove (not shown) opened on the second housing 2507. Based on the radial pressure of the annular sealing portion 25011, a seal is achieved synchronously by the fourth sealing ring 2502 and the second housing 2507. Correspondingly, the fifth sealing ring 2503 is fixed to the annular sealing portion 25011, for example, but not limited to, being able to be embedded in a sealing groove (not shown) opened on the annular sealing portion 25011. Based on the radial pressure of the annular sealing portion 25011, a seal is achieved synchronously by the fifth sealing ring 2503 and the sealing portion 25061 of the fixed sealing member 2506.

[0091] Accordingly, the second limiting block 2505 is fixed to the second outer shell 2507, and the second spring 2504 is pre-compressed and disposed between the second limiting block 2505 and the second seal 2501, so that the second seal 2501 remains in a sealed state in the initial state (natural state not properly mated with the first connector), that is, the second connector 250 achieves self-sealing. The second seal 2501 can be pressed inward to switch to the open state, further pushing the second spring 2504 to generate elastic deformation and store deformation energy to provide the reset force for the second seal 2501 to switch to the sealed state.

[0092] In a specific implementation, to optimize the assembly structure of the fixed seal 2506, as shown in Figures 15 and 16, the second limiting block 2505 further includes a limiting body 25051, a fixing part 25052, and a connecting part 25053. The limiting body 25051 is fitted over the fixing part 25052, and the two are connected by multiple connecting parts 25053. The limiting body 25051 is used to adapt to and limit the second spring 2504 with the second seal 2501. The end of the fixed seal 2506 away from the interface side can be fixed to the fixing part 25052, thereby assembling and fixing the fixed seal 2506. Correspondingly, the sealing part 25061 is located at the end of the fixed seal 2506 near the interface side. Here, the fixed seal 2506 and the fixing part 25052 can be snap-fitted, threaded, welded, riveted, or integrally formed. The specific connection can be determined according to the product process requirements, and this embodiment does not limit the specific connection.

[0093] Based on this, the number of connecting parts 25053 can be set to multiple and they are spaced apart in the circumferential direction. An opening 25054 is formed between two adjacent connecting parts 25053 to allow the liquid working fluid to pass through.

[0094] Similarly, in other specific implementations, the second spring 2504 can also be a first elastic element with other structural forms, such as a rubber element, or, for example, a metal spring sheet. The specific implementation can be determined based on the overall product design, as long as the first limiting portion can be adapted to the second sealing element 2501 to limit the function of the second elastic element. This application does not impose any limitations on this embodiment.

[0095] For the mating first connector 140 and second connector 250, the first housing 1405 on the interface side of the first connector 140 can be inserted into the second housing 2507 on the interface side of the second connector 250. As shown in Figure 17, the first housing 1405 can push the second sealing member 2501 into the second housing 2507 to the open state. At the same time, the sealing part 25061 of the fixed sealing member 2506 pushes the first sealing member 1401 into the first housing 1405 to the open state. In this state, the first housing 1405 is inserted into the central hole of the fourth sealing ring 2502 and radially pressed against the third sealing ring 1402 to seal, thereby ensuring the seal at the mating position.

[0096] In a specific implementation, the first seal 1401 can move within a predetermined stroke N within the first housing 1405, and similarly, the second seal 2501 can also move within a predetermined stroke N within the second housing 2507; thus, the two can maintain a fluid circuit connection within a predetermined length in the insertion direction, eliminating the accumulation of tolerances on the assembly dimension chain in the insertion direction, and obtaining a reliable mutual connection relationship.

[0097] The following is a brief explanation of the plug-in / plug-out adaptation principle of the first connector 140 and the second connector 250, with reference to Figure 17:

[0098] Insertion process: When inserting the optical module, as shown in Figure 17(a), the first connector 140 is inserted into the second housing 2507. The first seal 1401 abuts against the fixed seal 2506, and the first seal 1401 is pushed a certain distance in the opposite direction of the insertion direction by the fixed seal 2506. The first spring 1403 is compressed, and the first housing 1405 pushes the second seal 2501 to move in the insertion direction, compressing the second spring 2504. The first housing 1405 and the second housing 2507 are sealed by the fourth sealing ring 2502, and a channel P is formed between the housing and the first seal 1401 and the fixed seal 2506. At this time, the liquid circuit begins to connect.

[0099] Referring to Figure 17(b), the first connector 140 can continue to move relative to the second housing 2507 as indicated by dimension mark N, while maintaining communication with channel P.

[0100] Pull-out process: When the optical module is pulled out, the first spring 1403 rebounds and pushes the first seal 1401 back to its original position. The first seal 1401 inserts into the central hole of the third sealing ring 1402 and radially presses against the third sealing ring 1402 to seal. The second spring 2504 rebounds and pushes the second seal 2501 back to its original position. The fifth sealing ring 2503 is fitted onto the sealing part of the fixed seal 2506. The annular sealing part 25011 of the second seal 2501 inserts into the central hole of the fourth sealing ring 2502 and radially presses against both the fourth sealing ring 2502 and the fifth sealing ring 2503 to seal. Thus, the first connector 140 and the second connector 250 achieve self-sealing.

[0101] It should be noted that the functional structures of the first connector 140 and the second connector 250 can also be reversed and arranged on the optical module side and the device body side, respectively, to meet the above functional requirements. This application does not limit the specific implementation.

[0102] Based on the aforementioned connector assembly, it can be applied to various electronic device scenarios employing liquid-cooled optical modules. Examples include optical communication devices such as switches and routers, or computing devices such as servers. It should be understood that the main body 20 and other functional components of the electronic device 100 are not the core inventive points of this application, and can be implemented by those skilled in the art based on existing technology; therefore, they will not be elaborated upon further herein.

[0103] In addition, the electronic device architecture provided in the embodiments of this application can also be applied to electronic products and devices with high heat dissipation requirements and pluggable requirements, such as, but not limited to, power equipment such as chargers and charging piles.

[0104] In addition to the aforementioned optical module, this application embodiment also provides an electrical module that can be plugged into and adapted to the main body of the device. The electrical module includes a housing and a printed circuit board assembly located within the housing. The insertion end of the printed circuit board assembly forms an electrical interface for electrical connection with the docking electrical interface on the main body of the device. The housing includes a hollow cavity for accommodating a liquid cooling medium and two connectors respectively communicating with the hollow cavity. The interfaces of the connectors are positioned facing the insertion end of the electrical module. The connectors are either the first connector as described above, used for interconnection and adaptation with the second connector on the main body of the device; or, the connectors are the second connector as described above, used for interconnection and adaptation with the first connector on the main body of the device. Similarly, based on the aforementioned plugging and connection sequence of the liquid interface and the electrical interface, the liquid-cooled electrical module and the main body of the device can also achieve electrical connection first and then liquid connection to obtain a good heat dissipation effect. The specific implementation of other functional components can adopt the same approach as the aforementioned implementation scheme, and will not be elaborated here.

[0105] In specific implementations, the electrical module may or may not have an external power interface. Specifically, the electrical module can be a direct-attach cable (DAC) module, an active electrical cable (AEC) module, or an active copper cable (ACC) module. Other functional configurations of the corresponding electrical module can be implemented using existing technologies, and this application embodiment does not limit them.

[0106] Furthermore, the ordinal numbers "first" and "second," etc., used herein are only for describing the composition or structure of the same function in the technical solution. It is understood that the use of the aforementioned ordinal numbers does not constitute a limitation on the understanding of the technical solution for which protection is sought in this application.

[0107] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A communication module for plugging and unplugging into a device body, characterized in that, The communication module includes a housing and a printed circuit board assembly. At least a portion of the printed circuit board assembly containing a heating element is located in the housing. The insertion end of the printed circuit board assembly forms an electrical interface for electrical connection with a docking electrical interface on the main body of the device. The housing includes a hollow cavity for accommodating a liquid cooling medium and two first connectors respectively communicating with the hollow cavity. The interfaces of the first connectors are oriented towards the insertion end. In the insertion / removal direction, the first connector can switch between a first working position and a second working position relative to the housing. When in the first working position, the first connector can be interconnected and adapted with the second connector on the main body side of the device. When in the second working position, the first connector and the second connector are not interconnected and adapted.

2. The communication module according to claim 1, characterized in that, The housing includes a mounting recess communicating with the hollow cavity. The opening of the mounting recess faces the insertion side of the communication module. A first sealing ring and a second sealing ring are provided on the housing. The first outer shell of the first connector has a variable cross-section outer peripheral surface. A stepped surface is provided between the large-size segment and the small-size segment of the outer peripheral surface. The small-size segment is inserted into the mounting recess through the central hole of the first sealing ring and the second sealing ring. A sealing protrusion is provided on the small-size segment. When the first connector is in the first working position, the sealing protrusion and the second sealing ring are radially pressed together for sealing. When the first connector is in the second working position, the stepped surface and the first sealing ring are pressed together for sealing in the insertion and removal direction.

3. The communication module according to claim 2, characterized in that, The sealing ring is integrally formed with the first housing, or the sealing ring is assembled and fixed with a small segment of the first housing.

4. The communication module according to claim 2 or 3, characterized in that, A positioning protrusion is fixedly provided on the side wall of the mounting recess. The positioning protrusion is located between the first sealing ring and the second sealing ring, which are spaced apart. When the first connector is in the first working position, the sealing protrusion abuts against the positioning protrusion to prevent the first connector from disengaging from the mounting recess.

5. The communication module according to claim 4, characterized in that, The positioning protrusion is integrally formed with the housing, or the positioning protrusion is assembled and fixed with the side wall of the mounting recess.

6. The communication module according to any one of claims 2 to 5, characterized in that, The first sealing ring is fitted into a sealing groove on the outer periphery of the opening of the mounting recess, and the second sealing ring is fitted into a sealing groove on the side wall of the mounting recess.

7. The communication module according to any one of claims 2 to 6, characterized in that, The housing also includes a limiting member, which is rotatably disposed on the housing and has a limiting portion extending toward the outer peripheral surface of the large-size segment; a limiting groove is formed on the outer peripheral surface of the large-size segment; when the first connector is located in the first working position, the limiting portion can rotate and be housed in the limiting groove; when the first connector is located in the second working position, the limiting portion can rotate and abut against the stepped surface.

8. The communication module according to claim 7, characterized in that, The limiting member is positioned above the limiting groove.

9. The communication module according to claim 7 or 8, characterized in that, The limiting groove is an annular groove opened along the outer peripheral surface of the large-size segment.

10. The communication module according to any one of claims 1 to 9, characterized in that, The first connector is disposed on the housing on the insertion side away from the communication module.

11. The communication module according to any one of claims 1 to 10, characterized in that, The communication module is either an optical module or an electrical module.

12. An electronic device, characterized in that, The electronic device includes a device body and a communication module inserted into the device body. The communication module adopts the communication module of any one of claims 1 to 11. The device body includes a shell, a single board, and a second connector. The second connectors are arranged in pairs and are respectively connected to the liquid supply branch and the liquid return branch of the device body. The single board is provided with a docking electrical interface. The electrical interface of the communication module is adapted to and connected to the docking electrical interface. The first connector of the communication module can be mutually connected with the corresponding second connector.

13. The electronic device according to claim 12, characterized in that, The electrical interface is a gold finger pin located at the circuit board insertion end of the communication module. The main body of the device includes an electrical connector located on the single board, and the mating electrical interface is the electrical connector.

14. The electronic device according to claim 12 or 13, characterized in that, The first connector includes a first outer shell, a first sealing element, a third sealing ring, and a first elastic element. The first outer shell has two openings that communicate with the inner cavity, one of which communicates with the hollow cavity, and the other opening is an interface with the first connector. The first sealing element is built into the first outer shell, and the third sealing ring is disposed on the first outer shell. The first sealing element can be inserted into the central hole of the third sealing ring and radially pressed to seal. The first outer shell is provided with a first limiting part, and the first elastic element is pre-compressed and disposed between the first limiting part and the first sealing element. When the first sealing element is pressed and moves into the first outer shell, it can push the first elastic element to generate elastic deformation, thereby forming a restoring force acting on the first sealing element. The second connector includes a second housing, a second seal, a fourth sealing ring, a fifth sealing ring, a second elastic element, and a fixed seal. The second housing includes two openings that communicate with the inner cavity. One of the openings communicates with the main body of the device, and the other opening is the interface of the second connector. The second sealing element and the fixed sealing element are built into the second housing. The second sealing element is fitted onto the fixed sealing element. The second sealing element has an annular sealing portion. The fourth sealing ring is disposed on the second housing. The fifth sealing ring is disposed on the annular sealing portion of the second sealing element. The second sealing element can be inserted into the central hole of the fourth sealing ring and radially pressed to seal. The sealing portion can be inserted into the central hole of the fifth sealing ring and radially pressed to seal. The second housing is provided with a second limiting portion. The second elastic element is pre-compressed and disposed between the second limiting portion and the second sealing element. When the second sealing element is pressed and moves into the second housing, it can push the second elastic element to generate elastic deformation, thereby forming a restoring force acting on the second sealing element.

15. The electronic device according to claim 14, characterized in that, The first housing on the interface side can be inserted into the second housing on the interface side to press against the second seal and move into the second housing. The first housing can be inserted into the central hole of the fourth sealing ring and radially press against it for sealing. The fixed seal can press against the first seal and move into the first housing.

16. The electronic device according to any one of claims 12 to 15, characterized in that, The electronic device is an optical communication device or a computing device.

Images