Optical module and electronic device

Abstract

An optical module and an electronic device. A housing of the optical module comprises a hollow cavity capable of accommodating a liquid cooling working medium, and two first connectors elastically connected to the hollow cavity. A first mounting base is provided at a front portion of the housing, each first connector separately passes through and is mounted in the first mounting base, and a first constraint and a second constraint are present between the first connectors and the first mounting base. When the optical module is inserted or removed, on the basis of the first constraint between the first connectors and the first mounting base, the first connectors and an optical module body structure synchronously move, thereby meeting reliability requirements for insertion and removal operations. On the basis of the second constraint between the first connectors and the first mounting base, it can be ensured that no stress is generated during mating between the first connectors and second connectors, thereby maintaining good mating reliability. On this basis, the second constraint also enables adaptive adjustment to accommodate tolerance accumulation in an assembly dimension chain between an optical module-side interface and a device-side interface, thereby providing a self-adaptive capability for preventing the influence of tolerance accumulation.

Description

An optical module and electronic device

[0001] This application claims priority to Chinese Patent Application No. 202411884870.X, filed with the State Intellectual Property Office of China on December 18, 2024, entitled "An Optical Module and Electronic Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of optical communication, and more particularly to an optical module and an electronic device. Background Technology

[0003] With the development of optical communication technology and the increase in equipment capacity, the power density of optical modules is becoming increasingly higher. Traditional air cooling can no longer meet the heat dissipation requirements of higher power optical modules. Immersion liquid cooling technology can provide good heat dissipation capabilities, but the airtightness problem of the optical coupling path has not been solved. As a result, there is a bottleneck in the development of optical module power. Summary of the Invention

[0004] This application provides an optical module and electronic device. By optimizing the structural configuration of the optical module, the heat dissipation capacity is effectively improved, while also ensuring good operability and operational reliability.

[0005] The first aspect of this application provides an optical module, which includes a housing, a printed circuit board assembly, and an optical port connector. The optical port connector is located at the front end of the housing and is connected to the printed circuit board assembly. At least a portion of the printed circuit board assembly is located in the housing, and an electrical interface is provided at the rear end of the printed circuit board assembly for docking with the electrical port connector on the device body side to achieve electrical signal communication. The housing includes a hollow cavity for accommodating liquid cooling medium, and two first connectors respectively connected to the input port and output port of the hollow cavity. The docking interface of the first connector is provided facing the rear end side of the optical module for adapting and connecting with the second connector on the device body side to form a liquid cooling medium circulation. The first connectors are elastically connected to the hollow cavity side. Correspondingly, a first mounting base is provided at the front of the housing, and each first connector is respectively mounted on the first mounting base. The first connectors and the first mounting base have a first constraint and a second constraint. The first constraint is configured to limit the amount of movement of the first connector relative to the first mounting base in the insertion and removal direction, and the second constraint is configured to limit the translation vector of the first connector relative to the first mounting base in a plane perpendicular to the insertion and removal direction. With this configuration, after the optical module is inserted into the optical cage, a liquid-cooled working fluid circulation can be simultaneously established. The low-temperature liquid-cooled working fluid can enter the hollow cavity of the optical module's housing through the first connector connected to the input port, exchange heat with the housing wall, and then the high-temperature liquid-cooled working fluid flows out of the optical module's housing through the first connector connected to the output port. In this way, based on the liquid-cooled working fluid circulation, the heat generated by the internal components of the housing can be quickly removed, effectively improving the heat dissipation capacity of the optical module. Using the optical module provided in this embodiment, a single insertion and removal operation can achieve electrical connection between the optical module and the main body of the device, and simultaneously realize the connection of the liquid-cooled working fluid circulation. It has good operability, facilitates maintenance operations on the optical module side, and has relatively low operating costs.

[0006] In addition, the first connector is installed on the first mounting base located at the front of the housing. The mating position of the first connector on the optical module side and the second connector on the main body of the equipment is far away from the electrical interface. If abnormal leakage occurs at the mating position, it can avoid the adverse effects of leakage on the electrical connection link and ensure the reliability of equipment operation.

[0007] Furthermore, each first connector is respectively mounted on a first mounting base. In a plane perpendicular to the insertion / removal direction, the first connector can be translated relative to the first mounting base under constraint. On the one hand, based on the second constraint between the first connector and the first mounting base, the translation vector of the first connector relative to the first mounting base can be limited, that is, the first connector has a certain range of degrees of freedom of movement in a plane perpendicular to the insertion / removal direction. On the other hand, based on the first constraint between the first connector and the first mounting base, when the optical module is inserted or removed, the first connector and the main structure of the optical module move synchronously, meeting the requirements for the reliability of insertion / removal operations. Overall, it can be ensured that no stress is generated during the docking of the first connector and the second connector, maintaining good docking reliability. Moreover, based on the elastic connection relationship between the first connector and the hollow cavity side, it can adapt to the possible translational movement that may occur during the insertion / removal of the first connector, meeting the connection reliability between the first connector and the housing side. On this basis, the tolerance accumulation on the assembly dimension chain of the interface between the optical module side and the equipment side can also be adaptively adjusted through this second constraint, that is, the influence of tolerance accumulation may be eliminated, and it has an adaptive capability to prevent the influence of tolerance accumulation.

[0008] Based on the first aspect, this application also provides a first implementation of the first aspect: the first mounting base is configured as one unit, and the outer peripheral surface of the first connector has two spaced-apart protruding limiting portions; the two protruding limiting portions are respectively located on both sides of the first mounting base, and a first constraint is formed between the two protruding limiting portions and the two side surfaces of the first mounting base; the first connector between the two protruding limiting portions is a through-hole, the cross-sectional dimension of the through-hole is smaller than the size of the through-hole of the first mounting base, and a second constraint is formed between the through-hole and the through-hole. Thus, in a plane perpendicular to the insertion / removal direction, the first connector can be translated relative to the first mounting base in a constrained manner, having a certain range of degrees of freedom of movement. Based on the compatible small-sized through-hole and large-sized through-hole, a second constraint is constructed to limit the translation vector of the first connector relative to the first mounting base, which has the characteristics of simple and reliable structure.

[0009] For example, the cross-sections of the matching insertion section and insertion hole can both be circular, so that the same translation amount in each direction can be obtained in a plane perpendicular to the insertion direction, and the process implementation cost is low.

[0010] Based on the first aspect, this application also provides a second implementation of the first aspect: Two first mounting seats are provided, and the outer peripheral surface of the first joint has an outwardly protruding limiting portion; the outwardly protruding limiting portion is located between the two first mounting seats, and a first constraint is formed between the opposing surfaces of the two first mounting seats and the outwardly protruding limiting portion; the first joints on both sides of the outwardly protruding limiting portion are through-hole sections, the cross-sectional dimensions of which are smaller than the dimensions of the through-holes of the corresponding side of the first mounting seat, and a second constraint is formed between the through-holes and the through-holes. With this configuration, the two first mounting seats bear the butt joint stress, resulting in higher overall structural stability.

[0011] Based on the first aspect, or 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 two first connectors are respectively connected to the inlet and outlet of the hollow cavity through flexible tubes to form an elastic connection between the first connectors and the hollow cavity side. Exemplarily, the flexible tube can be a metal flexible tube or a rubber tube, or a composite tube made of metal and rubber materials. This flexible tube configuration achieves an elastic connection between the first connectors and the hollow cavity side, while also further reducing the precision requirements for the processing of related components and structures, and reasonably controlling the cost of process implementation.

[0012] Based on the first aspect, or the first embodiment of the first aspect, or the second embodiment of the first aspect, this application also provides a fourth embodiment of the first aspect: The optical module has an outward protrusion on the front end side of its housing, with an input port and an output port disposed on the outward protrusion. Each first connector is connected to the outward protrusion around the outer periphery of the input port and the output port respectively through a first annular elastic member, thereby forming an elastic connection between the first connector and the hollow cavity side. In this way, the elastic connection with the hollow cavity side is achieved through the first annular elastic member, accommodating possible translational movement during the insertion and removal of the first connector, while also ensuring the sealing reliability between the first connector and the hollow cavity side.

[0013] For example, the protrusion can be integrally formed with the main body of the housing, or it can be processed separately and then fixed into one piece. Other examples include the protrusion having an internal flow channel, which can be part of the hollow cavity of the housing and communicate with the hollow cavity of the first housing.

[0014] In practical applications, the first annular elastic element is a first annular sealing membrane. The inner edge of the first annular sealing membrane is sealed to the outer peripheral surface of the first connector, and the outer edge of the first annular sealing membrane is sealed to the end faces of the corresponding protruding portions on the outer periphery of the inlet and outlet. In other practical applications, the first annular elastic element is a first annular sealing ring. The first connector is inserted into the corresponding inlet and outlet, and the first annular sealing ring is nested between the outer peripheral surface of the first connector and the corresponding inlet and outlet. This arrangement also achieves reliable sealing while realizing an elastic connection between the first connector and the hollow cavity side.

[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, this application also provides a fifth implementation of the first aspect: the optical module further includes a protective cover, the protective cover is fixedly mounted on the housing, and the first mounting base and the first connector are located inside the protective cover, the rear wall surface of the protective cover has a passage opening. With this configuration, in the event of abnormal leakage at the docking position, the leakage can be shielded by the protective cover fixed to the housing, preventing leakage splashes from affecting the normal function of the optical module.

[0016] For example, the port is configured as two, with the two first ports positioned opposite the two first connectors in the insertion / removal direction to effectively control the possibility of leakage and splashing.

[0017] Based on the fifth embodiment of the first aspect, this application also provides a sixth embodiment of the first aspect: a second annular elastic element is provided on the protective cover around the opening, the second annular elastic element is connected to the protective cover, and the inner edge of the second annular elastic element can press against the corresponding outer peripheral surface of the joint. In this way, when abnormal leakage occurs at the docking position, leakage splashing can be controlled to the maximum extent.

[0018] In practical applications, the second annular elastic element can be a second annular sealing membrane. The outer edge of the second annular sealing membrane is connected to the protective cover around the passage. With this configuration, after the second connector is inserted into the protective cover through the passage, the inner edge region of the first annular sealing membrane can expand and deform, covering the outer peripheral surface of the second connector, thus forming a reliable seal at the passage. In other practical applications, the second annular elastic element can also be a second annular sealing ring, which is embedded in the inner wall of the passage, similarly forming a reliable seal at the passage.

[0019] Based on the fifth or sixth embodiment of the first aspect, this application also provides a seventh embodiment of the first aspect: a flow guide groove is provided at the front of the housing, the flow guide groove extends vertically through the housing, and the upper opening of the flow guide groove is located inside the protective cover. Since the optical module has a flow guide groove extending vertically through its housing at the front, if abnormal leakage occurs at the docking position, the leaked liquid cooling medium can flow through the flow guide groove to the bottom of the optical module, quickly achieving liquid discharge and preventing liquid accumulation from affecting the normal function of the optical module.

[0020] For example, the flow channels on the housing can be configured as two, and located on both sides of the housing respectively, so that the liquid working fluid in the protective cover can be quickly discharged through the flow channels on both sides.

[0021] Based on the fifth, sixth, or seventh implementation of the first aspect, this application also provides an eighth implementation of the first aspect: the optical module further includes a leakage sensor, which is disposed below the first connector and used to acquire leakage information; the leakage sensor is communicatively connected to the printed circuit board assembly and can upload the leakage information to the monitoring unit on the device side through the printed circuit board assembly. With this configuration, an alarm can be triggered based on the leakage information uploaded to the monitoring system, so that maintenance personnel can promptly arrange repairs and maintenance to avoid expanding the impact of the leakage.

[0022] Based on the eighth embodiment of the first aspect, this application also provides a ninth embodiment of the first aspect: the leakage sensor is configured to output a low-level signal when the leakage information is in a no-leakage state, and to output a high-level signal when the leakage information is in a leakage state. For example, the leakage sensor can be a leakage detection membrane.

[0023] Based on the ninth embodiment of the first aspect, this application also provides a tenth embodiment of the first aspect: the leakage detection membrane is applied to the upper surface of the housing, and the current leakage amount can be characterized by the area of ​​the wetted area detected by the leakage detection membrane; or, the leakage detection membrane is applied to the side wall of the protective cover, and the current leakage amount can be characterized by the height of the accumulated liquid detected by the leakage detection membrane. This enables a leakage alarm method with further refined granularity, facilitating maintenance personnel to arrange repairs and maintenance based on the actual leakage situation.

[0024] 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, or the seventh implementation of the first aspect, or the eighth implementation of the first aspect, or the ninth implementation of the first aspect, or the tenth implementation of the first aspect, this application also provides an eleventh implementation of the first aspect: the optical modules are configured as a plurality of sequentially arranged, and the hollow cavities within the housings of the plurality of optical modules are interconnected. In practical application scenarios, this optical module group can integrate a large number of optical modules and is compatible with application scenarios of more optical module protocols, such as, but not limited to, SFP, SFP+, XFP, QSFP+, QSFP28, or OSFP protocols.

[0025] For example, the interconnected hollow cavities can be located on the top wall of each housing, or the interconnected hollow cavities can be located on the bottom wall of each housing, which can effectively control the overall height of the optical module group.

[0026] In other exemplary cases, in the arrangement direction of the multiple optical modules, the two first connectors provided in the corresponding connected hollow cavities can be located on both sides of the multiple optical modules, or they can be located on the same side of the multiple optical modules.

[0027] 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, or the seventh implementation of the first aspect, or the eighth implementation of the first aspect, or the ninth implementation of the first aspect, or the tenth implementation of the first aspect, or the eleventh implementation of the first aspect, this application also provides a twelfth implementation of the first aspect: the two first joints are staggered in the height direction. In this way, the first manifold group correspondingly set on the equipment side can be provided with a strip-shaped pipe body. The strip-shaped pipe body structure is relatively simple, which can reduce the configuration space occupied on the equipment side, and the process implementation cost is relatively low.

[0028] The second aspect of this application provides another optical module for plug-and-play adaptation with a device body. The optical module includes a housing, a printed circuit board assembly, and an optical port connector. The optical port connector is located at the front end of the housing and connected to the printed circuit board assembly. At least a portion of the printed circuit board assembly is located within the housing, and an electrical interface is provided at the rear end of the printed circuit board assembly. The housing includes a hollow cavity for accommodating liquid cooling fluid, and two first connectors respectively connected to the input and output ports of the hollow cavity. The mating interfaces of the first connectors face the rear end of the optical module and are used for adaptation and connection with the second connector on the device body side. A flow guide groove is provided at the front of the housing, extending vertically through the housing. With this configuration, after the optical module is inserted into the optical cage, a liquid cooling fluid circulation can be simultaneously established. The low-temperature liquid cooling fluid can enter the hollow cavity of the optical module housing via the first connector connected to the input port, exchange heat with the housing wall, and then the high-temperature liquid cooling fluid flows out of the optical module housing via the first connector connected to the output port. Thus, based on the liquid cooling fluid circulation, the heat generated by the internal components of the housing can be quickly removed, effectively improving the heat dissipation capacity of the optical module. The optical module provided in this application embodiment can achieve electrical connection between the optical module and the main body of the device with a single plug-in / plug-out operation, and simultaneously realize the docking of the liquid cooling working fluid circulation. It has good operability, facilitates the operation and maintenance of the optical module side, and has relatively low operating costs.

[0029] In addition, the front of the optical module is equipped with a flow channel that runs through the top and bottom of its housing. In this way, if an abnormal leakage occurs at the docking position, the leaked liquid cooling medium can flow through the flow channel to the bottom of the optical module, quickly realizing the discharge of the leakage and avoiding the leakage accumulation affecting the normal function of the optical module.

[0030] In practical applications, two flow channels are configured, located on opposite sides of the housing. This allows the liquid working fluid within the protective shield to be quickly discharged through the flow channels on both sides.

[0031] Based on the second aspect, this application also provides a first implementation of the second aspect: the optical module further includes a protective cover, which is fixedly mounted on the housing. The first connector is located inside the protective cover, the rear wall of the protective cover has a passage opening, and the upper opening of the guide groove is located inside the protective cover. With this configuration, in the event of abnormal leakage at the docking position, the leakage can be blocked by the protective cover fixed to the housing, and the liquid working fluid collected in the protective cover can be quickly discharged through the guide groove, preventing leakage splashes from affecting the normal function of the optical module.

[0032] For example, the port is configured as two, with the two first ports positioned opposite the two first connectors in the insertion / removal direction to effectively control the possibility of leakage and splashing.

[0033] Based on the second aspect, or the first implementation of the second aspect, this application also provides a second implementation of the second aspect: the optical module further includes a leakage sensor, which is disposed below the first connector and used to acquire leakage information; the leakage sensor is communicatively connected to the printed circuit board assembly and can upload the leakage information to the monitoring unit on the device side through the printed circuit board assembly. With this configuration, an alarm can be triggered based on the leakage information uploaded to the monitoring system, so that maintenance personnel can promptly arrange repairs and maintenance to avoid escalating the impact of the leakage.

[0034] Based on the second implementation of the second aspect, this application also provides a third implementation of the second aspect: the leakage sensor is configured to output a low-level signal when the leakage information indicates a no-leakage state, and to output a high-level signal when the leakage information indicates a leakage state. For example, the leakage sensor is a leakage detection membrane.

[0035] Based on the third implementation of the second aspect, this application also provides a fourth implementation of the second aspect: the leakage detection membrane is applied to the upper surface of the housing, and the current leakage amount can be characterized by the area of ​​the wetted region detected by the leakage detection membrane; or, the leakage detection membrane is applied to the side wall of the protective cover, and the current leakage amount can be characterized by the height of the accumulated liquid detected by the leakage detection membrane. This enables a leakage alarm method with further refined granularity, facilitating maintenance personnel to arrange repairs and maintenance based on the actual leakage situation.

[0036] Based on the first, second, third, or fourth implementation of the second aspect, this application also provides a fifth implementation of the second aspect: a second annular elastic element is provided on the protective cover around the first passage, the second annular elastic element is connected to the protective cover, and the inner edge of the second annular elastic element can press against the corresponding outer peripheral surface of the joint. In this way, when abnormal leakage occurs at the docking position, leakage splashing can be controlled to the maximum extent.

[0037] In practical applications, the second annular elastic element can be a second annular sealing membrane. The outer edge of the second annular sealing membrane is connected to the protective cover around the passage. With this configuration, after the second connector is inserted into the protective cover through the passage, the inner edge region of the first annular sealing membrane can expand and deform, covering the outer peripheral surface of the second connector, thus forming a reliable seal at the passage. In other practical applications, the second annular elastic element can also be a second annular sealing ring, which is embedded in the inner wall of the passage, similarly forming a reliable seal at the passage.

[0038] Based on the second aspect, or the first embodiment of the second aspect, or the second embodiment of the second aspect, or the third embodiment of the second aspect, or the fourth embodiment of the second aspect, this application also provides a sixth embodiment of the second aspect: the first connector is elastically connected to the hollow cavity side, a first mounting seat is provided at the front of the housing, each first connector is respectively mounted on the first mounting seat, and there is a first constraint and a second constraint between the first connector and the first mounting seat, wherein the first constraint is configured to limit the amount of movement of the first connector relative to the first mounting seat in the insertion and removal direction, and the second constraint is configured to limit the translation vector of the first connector relative to the first mounting seat in a plane perpendicular to the insertion and removal direction. With this configuration, each first connector is respectively mounted on the first mounting seat, and the first connector can be translated relative to the first mounting seat in a constrained manner in a plane perpendicular to the insertion and removal direction. On the one hand, based on the second constraint between the first connector and the first mounting base, the translation vector of the first connector relative to the first mounting base can be limited, meaning the first connector has a certain range of degrees of freedom of movement within a plane perpendicular to the insertion / removal direction. On the other hand, based on the first constraint between the first connector and the first mounting base, when the optical module is inserted or removed, the first connector and the main structure of the optical module move synchronously, meeting the reliability requirements of the insertion / removal operation. Overall, it can ensure that no stress is generated during the docking process between the first and second connectors, maintaining good docking reliability. Furthermore, based on the elastic connection relationship between the first connector and the hollow cavity side, it can accommodate the possible translational movement that may occur during the insertion / removal of the first connector, meeting the connection reliability between the first connector and the housing side. On this basis, the tolerance accumulation on the dimensional chain of the interface assembly between the optical module side and the equipment side can also be adaptively adjusted through this second constraint, that is, the influence that tolerance accumulation may cause is eliminated, and it has an adaptive capability that can prevent the influence of tolerance accumulation.

[0039] Based on the sixth embodiment of the second aspect, this application also provides a seventh embodiment of the second aspect: the first mounting base is configured as one unit, and the outer peripheral surface of the first connector has two spaced-apart protruding limiting portions; the two protruding limiting portions are respectively located on both sides of the first mounting base, and a first constraint is formed between the two protruding limiting portions and the two side surfaces of the first mounting base; the first connector between the two protruding limiting portions is a through-hole, the cross-sectional dimension of the through-hole is smaller than the size of the through-hole of the first mounting base, and a second constraint is formed between the through-hole and the through-hole. Thus, in a plane perpendicular to the insertion / removal direction, the first connector can be translated relative to the first mounting base in a constrained manner, having a certain range of degrees of freedom of movement. Based on the compatible small-sized through-hole and large-sized through-hole, a second constraint is constructed to limit the translation vector of the first connector relative to the first mounting base, which has the characteristics of simple and reliable structure.

[0040] Based on the sixth embodiment of the second aspect, this application also provides an eighth embodiment of the second aspect: Two first mounting seats are provided, and the outer peripheral surface of the first joint has an outwardly protruding limiting portion; the outwardly protruding limiting portion is located between the two first mounting seats, and a first constraint is formed between the opposing surfaces of the two first mounting seats and the outwardly protruding limiting portion; the first joints on both sides of the outwardly protruding limiting portion are through-hole sections, the cross-sectional dimensions of which are smaller than the dimensions of the through-holes of the corresponding first mounting seats, and a second constraint is formed between the through-holes and the through-holes. With this configuration, the two first mounting seats bear the butt joint stress, resulting in higher overall structural stability.

[0041] Based on the sixth, seventh, or eighth implementation of the second aspect, this application also provides a ninth implementation of the second aspect: the two first connectors are respectively connected to the inlet and outlet of the hollow cavity via flexible tubes to form an elastic connection between the first connectors and the hollow cavity side. Exemplarily, the flexible tube can be a metal hose, a rubber tube, or a composite tube made of metal and rubber materials. This flexible tube configuration achieves an elastic connection between the first connectors and the hollow cavity side, while also further reducing the precision requirements for the processing of related components and structures, and reasonably controlling the cost of process implementation.

[0042] Based on the sixth, seventh, or eighth implementation of the second aspect, this application also provides a tenth implementation of the second aspect: the front end of the housing has an outward protrusion, an input port and an output port are disposed on the outward protrusion, and each first connector is connected to the outward protrusion around the outer periphery of the input port and the output port respectively through a first annular elastic member to form an elastic connection between the first connector and the hollow cavity side. In this way, the elastic connection with the hollow cavity side is achieved through the first annular elastic member, accommodating possible translational movement during the insertion and removal of the first connector, while also ensuring the sealing reliability between the first connector and the hollow cavity side.

[0043] In practical applications, the first annular elastic element is a first annular sealing membrane. The inner edge of the first annular sealing membrane is sealed to the outer peripheral surface of the first connector, and the outer edge of the first annular sealing membrane is sealed to the end faces of the corresponding protruding portions on the outer periphery of the inlet and outlet. In other practical applications, the first annular elastic element is a first annular sealing ring. The first connector is inserted into the corresponding inlet and outlet, and the first annular sealing ring is nested between the outer peripheral surface of the first connector and the corresponding inlet and outlet. This arrangement also achieves reliable sealing while realizing an elastic connection between the first connector and the hollow cavity side.

[0044] Based on the second aspect, or the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, or tenth implementation of the second aspect, this application also provides an eleventh implementation of the second aspect: the optical modules are configured as a plurality of sequentially arranged units, with the hollow cavities within the housings of the plurality of optical modules interconnected. In practical application scenarios, this optical module group can integrate a large number of optical modules, and is compatible with application scenarios of more optical module protocols, such as, but not limited to, SFP, SFP+, XFP, QSFP+, QSFP28, or OSFP protocols.

[0045] For example, the interconnected hollow cavities can be located on the top wall of each housing, or the interconnected hollow cavities can be located on the bottom wall of each housing, which can effectively control the overall height of the optical module group.

[0046] In other exemplary cases, in the arrangement direction of the multiple optical modules, the two first connectors provided in the corresponding connected hollow cavities can be located on both sides of the multiple optical modules, or they can be located on the same side of the multiple optical modules.

[0047] Based on the second aspect, or the first implementation of the second aspect, or the second implementation of the second aspect, or the third implementation of the second aspect, or the fourth implementation of the second aspect, or the fifth implementation of the second aspect, or the sixth implementation of the second aspect, or the seventh implementation of the second aspect, or the eighth implementation of the second aspect, or the ninth implementation of the second aspect, or the tenth implementation of the second aspect, or the eleventh implementation of the second aspect, this application also provides a twelfth implementation of the second aspect: the two first joints are staggered in the height direction. In this way, the first manifold group correspondingly provided on the equipment side can be provided with a strip-shaped pipe body. The strip-shaped pipe body structure is relatively simple, which can reduce the configuration space occupied on the equipment side, and the process implementation cost is relatively low.

[0048] Based on the second aspect, or the first embodiment of the second aspect, or the second embodiment of the second aspect, or the third embodiment of the second aspect, or the fourth embodiment of the second aspect, or the fifth embodiment of the second aspect, or the sixth embodiment of the second aspect, or the seventh embodiment of the second aspect, or the eighth embodiment of the second aspect, or the ninth embodiment of the second aspect, or the tenth embodiment of the second aspect, or the eleventh embodiment of the second aspect, or the twelfth embodiment of the second aspect, this application also provides a thirteenth embodiment of the second aspect: the housing of the optical module includes a first housing and a second housing connected to each other, one side of the circuit board is disposed opposite to the first housing, and the other side of the circuit board is disposed opposite to the second housing, and a hollow cavity is formed inside the first housing. In this way, with the inner wall of the first housing as the main heat dissipation surface, the hollow cavity containing the liquid cooling working fluid is disposed inside the first housing of the housing, and the heat-generating device can be in close contact with the first housing for heat exchange, resulting in high heat exchange efficiency.

[0049] Based on the thirteenth embodiment of the second aspect, this application also provides a fourteenth embodiment of the second aspect: the shell body opposite to the circuit board in the second shell is a first heat exchange plate, and the first heat exchange plate is connected to the first shell through heat-conducting pillars. In this way, the second shell provides an auxiliary heat dissipation surface through the first heat exchange plate, and achieves good heat transfer capability through the heat-conducting pillars. On the basis of the side cold plate structure of the first shell, the first heat exchange plate is added to achieve a heat exchange effect, and the overall heat exchange efficiency is high.

[0050] Based on the fourteenth embodiment of the second aspect, this application also provides a fifteenth embodiment of the second aspect: the first housing includes a first housing body and a second housing body connected to each other. The first housing body is located at the front end of the first housing, and a hollow cavity is formed within the first housing body. The second housing body is a second heat spreader, and the second heat spreader extends to the rear end of the first housing. The first heat spreader and the second heat spreader are connected by heat-conducting pillars. With this configuration, after the optical module is inserted, the first housing, which serves as a cold plate, can be located outside the optical cage. Leakage caused by a cold plate failure will not affect the internal components of the equipment, further improving the safety and reliability of the equipment operation.

[0051] In practical applications, the second shell body can extend to the front end of the first shell body. The front parts of the first shell body and the second shell body are stacked together, which has good heat conduction efficiency.

[0052] A third aspect of this application provides an electronic device, characterized in that the electronic device includes a device body and an optical module. The optical module is the optical module described above. The device body includes a housing, a single board, and an optical cage. The optical cage is connected to the single board, and the insertion port of the optical cage is exposed on the housing. An electrical connector is provided on the single board, and a second connector is provided on the housing. The optical module and the optical cage are pluggable and detachable, so that the electrical interface of the optical module is adapted to the electrical connector, and the two first connectors of the optical module are respectively adapted to the corresponding second connectors on the housing. In this way, through the optimized structural configuration of the optical module, the heat dissipation capacity is effectively improved while maintaining good operability and operational reliability.

[0053] For example, the electronic device can be a computing device such as a server, or it can be an optical communication device such as a router or switch. Attached Figure Description

[0054] Figure 1 is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0055] Figure 2 is a schematic diagram of the insertion relationship of the optical module shown in Figure 1;

[0056] Figure 3 is a schematic diagram of an optical module provided in an embodiment of this application;

[0057] Figure 4 is an exploded view of the assembly of the optical module shown in Figure 3;

[0058] Figure 5 is an exploded view of the assembly of a device body according to an embodiment of this application;

[0059] Figure 6 is a cross-sectional view of AA in Figure 3;

[0060] Figure 7 is a schematic diagram of the docking relationship of the first connector of the optical module shown in Figure 6;

[0061] Figure 8 is a partial cross-sectional view of BB shown in Figure 6;

[0062] Figure 9 is a partial cross-sectional view of another optical module provided in an embodiment of this application;

[0063] Figure 10 is a schematic diagram of the assembly relationship of the first joint shown in Figure 9;

[0064] Figure 11 is a partial cross-sectional view of another optical module provided in an embodiment of this application;

[0065] Figure 12 is a schematic diagram of the assembly relationship of the first joint shown in Figure 11;

[0066] Figure 13 is a simplified structural diagram of another optical module provided in an embodiment of this application;

[0067] Figure 14 is a schematic diagram of the communication architecture of a leakage sensor provided in an embodiment of this application;

[0068] Figure 15 is a simplified structural diagram of another optical module provided in an embodiment of this application;

[0069] Figure 16 is a schematic diagram of the layout of the leakage detection membrane shown in Figure 15;

[0070] Figure 17 is a simplified structural diagram of another optical module provided in an embodiment of this application;

[0071] Figure 18 is a simplified structural diagram of another optical module provided in an embodiment of this application;

[0072] Figure 19 is a partial view along direction D in Figure 18;

[0073] Figure 20 is a simplified structural diagram of another optical module provided in an embodiment of this application;

[0074] Figure 21 is a simplified diagram of the assembly relationship between the optical module and the main body of the device shown in Figure 20;

[0075] Figure 22 is a partial cross-sectional view of another optical module provided in an embodiment of this application;

[0076] Figure 23 is a partial cross-sectional view of another optical module provided in an embodiment of this application;

[0077] Figure 24 is a top view of an optical module assembly provided in an embodiment of this application;

[0078] Figure 25 is a front view of the optical module assembly shown in Figure 24;

[0079] Figure 26 is a side view of the optical module group shown in Figure 24;

[0080] Figure 27 is a schematic diagram of the assembly structure of a first manifold assembly provided in an embodiment of this application;

[0081] Figure 28 is a simplified structural diagram of another optical module provided in an embodiment of this application;

[0082] Figure 29 is a schematic diagram of another assembly structure of the first manifold assembly provided in an embodiment of this application;

[0083] Figure 30 is a side view of another electronic device provided in an embodiment of this application;

[0084] Figure 31 is a front view of the panel of the electronic device shown in Figure 30;

[0085] Figure 32 is a top view of a cabinet provided in an embodiment of this application;

[0086] Figure 33 is a schematic diagram of another manifold layout provided in an embodiment of this application;

[0087] Figure 34 is a side view of another electronic device provided in an embodiment of this application;

[0088] Figure 35 is a top view of another type of cabinet provided in an embodiment of this application;

[0089] Figure 36 is a simplified diagram of a docking relationship of the second connector on the main body side of the equipment provided in an embodiment of this application;

[0090] Figure 37 is a schematic diagram of the assembly relationship of a second connector provided in an embodiment of this application;

[0091] Figure 38 is a cross-sectional view of EE in Figure 37;

[0092] Figure 39 is a schematic diagram of the assembly relationship of a second connector provided in an embodiment of this application;

[0093] Figure 40 is a cross-sectional view of FF in Figure 39;

[0094] Figure 41 is a front view of another type of cabinet provided in an embodiment of this application;

[0095] Figure 42 is a top view of the cabinet shown in Figure 41;

[0096] Figure 43 is a schematic diagram of the assembly relationship between a liquid receiving tank and a drain pipe provided in an embodiment of this application.

[0097] Figure 44 is a front view of another type of cabinet provided in an embodiment of this application;

[0098] Figure 45 is a schematic diagram of another manifold layout provided in an embodiment of this application;

[0099] Figure 46 is a side view of another electronic device provided in an embodiment of this application;

[0100] Figure 47 is a front view of the electronic device shown in Figure 46;

[0101] Figure 48 is a side view of another electronic device provided in an embodiment of this application;

[0102] Figure 49 is a front view of the electronic device shown in Figure 48;

[0103] Figure 50 is a simplified structural diagram of another optical module provided in an embodiment of this application;

[0104] Figure 51 is a side view of another electronic device provided in an embodiment of this application;

[0105] Figure 52 is a side view of another electronic device provided in an embodiment of this application;

[0106] Figure 53 is a schematic diagram of the assembly structure of another protective cover provided in an embodiment of this application;

[0107] Figure 54 is a simplified structural diagram of the protective cover shown in Figure 53;

[0108] Figure 55 is a cross-sectional view of GG in Figure 54;

[0109] Figure 56 is a top view of another type of cabinet provided in an embodiment of this application;

[0110] Figure 57 is a structural schematic diagram of another protective cover provided in an embodiment of this application;

[0111] Figure 58 is a schematic diagram of one assembly relationship of the protective cover shown in Figure 57. Detailed Implementation

[0112] This application provides a liquid-cooled optical module implementation scheme that effectively improves the heat dissipation capacity of the optical module while also ensuring good reliability.

[0113] In a communication link, cables can be connected to optical modules assembled on the communication equipment side via connectors at their ends. Optical modules are crucial components in optical communication, comprising electrical and optical interfaces. The electrical interface mates with electrical connectors on the circuit board within the communication equipment, while the optical interface (fiber optic interface) connects to fiber optic ferrules. In different application scenarios, the optical module can convert electrical signals input through the electrical interface into optical signals for output, or vice versa, or simultaneously convert both electrical and optical signals input through the electrical interface into electrical signals for output.

[0114] 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, enabling 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, enabling connection between the fiber optic ferrule 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. The insertion and removal direction of the optical module 10 is shown by arrow X in the figure. For ease of description, in the insertion and removal direction X, the side of the optical module 10 away from the device body 20 is defined as the front end side, that is, the side where the optical interface is located; the other side of the optical module 10 facing the device body 20 is defined as the rear end side, that is, the side where the electrical interface is located.

[0115] In real-world scenarios, the demand for high-bandwidth, high-speed data transmission is steadily increasing, necessitating robust heat dissipation capabilities for optical modules to ensure stable operation. Traditional air cooling is no longer sufficient for the heat dissipation requirements of higher-power optical modules. Immersion liquid cooling technology can provide good heat dissipation, but the airtightness issue of the optical coupling path remains unresolved.

[0116] Based on this, this application provides a pluggable optical module that connects to a liquid-cooled circuit for pluggable adaptation on the device body side. The optical module includes a housing, a printed circuit board assembly (PCBA), and an optical port connector. The optical port connector is located at the front end of the housing and is connected to the PCBA. At least a portion of the PCBA is located in the housing, and an electrical interface is provided at the rear end of the PCBA. The housing of the optical module includes a hollow cavity for accommodating liquid-cooled working fluid, and two first connectors that are respectively connected to the input port and output port of the hollow cavity. The mating interfaces of the two first connectors are both arranged facing the rear end of the optical module for adaptation and connection with the second connector on the device body side, and the first connectors are elastically connected to the hollow cavity side. Correspondingly, a first mounting base is provided at the front of the housing, and each first connector is respectively mounted on the first mounting base. There is a first constraint and a second constraint between the first connector and the first mounting base. The first constraint is configured to limit the amount of movement of the first connector relative to the first mounting base in the plugging / unplugging direction, and the second constraint is configured to limit the translation vector of the first connector relative to the first mounting base in a plane perpendicular to the plugging / unplugging direction.

[0117] 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 to achieve electrical signal communication. Simultaneously, the first connector, which is connected to the hollow cavity of the optical module's housing, mates with the corresponding second connector on the main body of the device, forming a liquid-cooled working fluid circulation. During operation, the low-temperature liquid-cooled working fluid enters the hollow cavity of the optical module's housing via the first connector connected to the input port, exchanges heat with the housing wall, and then the high-temperature liquid-cooled working fluid flows out of the optical module's housing through the first connector connected to the output port. In this way, based on the liquid-cooled working fluid circulation, the heat generated by the internal components can be quickly removed, effectively improving the optical module's heat dissipation capacity. Using the optical module provided in this embodiment, a single insertion and removal operation can achieve electrical connection between the optical module and the main body of the device, and simultaneously realize the liquid-cooled working fluid circulation. It has good operability, facilitates the operation and maintenance of the optical module, and has relatively low overall operating costs.

[0118] In addition, the first connector is installed on the first mounting base located at the front of the housing. The mating position of the first connector on the optical module side and the second connector on the main body of the equipment is far away from the electrical interface. If abnormal leakage occurs at the mating position, it can avoid the adverse effects of leakage on the electrical connection link and ensure the reliability of equipment operation.

[0119] Furthermore, each first connector is respectively mounted on a first mounting base. In a plane perpendicular to the insertion / removal direction, the first connector can be translated relative to the first mounting base under constraint. On the one hand, based on the second constraint between the first connector and the first mounting base, the translation vector of the first connector relative to the first mounting base can be limited, that is, the first connector has a certain range of degrees of freedom of movement in a plane perpendicular to the insertion / removal direction. On the other hand, based on the first constraint between the first connector and the first mounting base, when the optical module is inserted or removed, the first connector and the main structure of the optical module move synchronously, meeting the requirements for the reliability of insertion / removal operations. Overall, it can ensure that no stress is generated during the docking of the first connector and the second connector (quick-connect male and female connectors), maintaining good docking reliability. Moreover, based on the elastic connection relationship between the first connector and the hollow cavity side, it can adapt to the possible translational movement that may occur during the insertion and removal of the first connector, meeting the connection reliability between the first connector and the housing side. On this basis, the tolerance accumulation on the assembly dimension chain of the interface between the optical module side and the equipment side can also be adaptively adjusted through this second constraint, that is, the influence of tolerance accumulation may be eliminated, and it has an adaptive capability to prevent the influence of tolerance accumulation.

[0120] Based on the aforementioned requirements for heat dissipation capability of optical modules, this application embodiment also provides another pluggable optical module that connects to a liquid cooling circuit for pluggable adaptation on the device body side. The optical module includes a housing, a printed circuit board assembly, and an optical port connector. The optical port connector is located at the front end of the housing and is connected to the printed circuit board assembly. At least a portion of the printed circuit board assembly is located in the housing, and an electrical interface is provided at the rear end of the printed circuit board assembly. The housing of the optical module includes a hollow cavity that can accommodate liquid cooling medium, and two first connectors that are respectively connected to the input port and output port of the hollow cavity. The mating interfaces of the two first connectors are both arranged facing the rear end side of the optical module for adaptation and connection with the second connector on the device body side. A flow guide groove is provided on the housing of the optical module, and the flow guide groove runs vertically through the housing.

[0121] 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 to achieve electrical signal communication. Simultaneously, the first connector, which is connected to the hollow cavity of the optical module's housing, mates with the corresponding second connector on the main body of the device, forming a liquid-cooled working fluid circulation. During operation, the low-temperature liquid-cooled working fluid enters the hollow cavity of the optical module's housing via the first connector connected to the input port, exchanges heat with the housing wall, and then the high-temperature liquid-cooled working fluid flows out of the optical module's housing through the first connector connected to the output port. In this way, based on the liquid-cooled working fluid circulation, the heat generated by the internal components can be quickly removed, effectively improving the optical module's heat dissipation capacity. Using the optical module provided in this embodiment, a single insertion and removal operation can achieve electrical connection between the optical module and the main body of the device, and simultaneously realize the liquid-cooled working fluid circulation. It has good operability, facilitates the operation and maintenance of the optical module, and has relatively low overall operating costs.

[0122] In addition, the front of the optical module is equipped with a flow channel that runs through the top and bottom of its housing. In this way, if an abnormal leakage occurs at the docking position, the leaked liquid cooling medium can flow through the flow channel to the bottom of the optical module, quickly realizing the discharge of the leakage and avoiding the leakage accumulation affecting the normal function of the optical module.

[0123] 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 Figures 3 and 4 together, wherein Figure 3 is a schematic diagram of an optical module provided by an embodiment of this application, Figure 4 is an exploded view of the assembly of the optical module shown in Figure 3, and Figure 5 is an exploded view of the assembly of a device body provided by an embodiment of this application.

[0124] The optical module 10 includes a housing 130, a printed circuit board assembly 120, an optical port connector 110, a first connector 140, a protective cover 150, and an unlocking assembly 160.

[0125] As shown in Figures 3 and 4, the optical connector 110 and PCBA 120 are located within the housing 130. 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, or power modules. 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 that can be plugged into and adapted to the electrical connector 230 on the single board 220 on the device body 20.

[0126] As shown in Figure 5, the main body 20 of the device has a single board 220 housed within the device housing 240. An electrical connector 230 and an optical cage 210 are mounted on the single board 220. The insertion port of the optical cage 210 is exposed on the panel of the device housing 240. After the optical module 10 is inserted, the electrical interface at the end of the circuit board 121 interconnects with the electrical connector 230. In a specific implementation, the electrical interface can be a gold finger structure on the circuit board 121 (not shown in the figure), which can be determined according to the overall product design requirements. This application does not limit the specific implementation.

[0127] Referring to Figure 4, 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 side of the circuit board 121 where the heating element 122 is located may be positioned opposite the first housing 131, while the other side of the circuit board 121 may be positioned opposite the second housing 132. In specific implementations, the housing of the optical module 10 may adopt other structural forms to meet the requirements of the corresponding standard protocol. Further details are omitted here.

[0128] For the unlocking component 160, the structure shown in the figure can be adopted. As shown in Figures 3 and 4, mounting slots can be provided on two opposite sides of the housing 130. The spring piece 161 of the unlocking component 160 is fixed together with the pull ring 162. The spring piece 161 has hooks 1611 on both sides, which restrict the spring 163 in the mounting slot of the housing 130. After the optical module 10 is inserted into the optical cage, the inner end of its spring piece 161 can be locked and limited with the side wall of the optical cage. When the pull ring 162 is pulled in the pulling direction, the pull ring 162 drives the spring piece 161 to move synchronously. During the pulling process, the spring 163 is compressed under the action of the hooks 1611. After the inner end of the spring piece 161 is released from the locking limit, the pull ring 162 is released, the spring 163 releases its elastic deformation energy and rebounds, which can push the spring piece 161 back to its original position.

[0129] It is understood that the unlocking component is not limited to the structural form shown in the figure. In other specific implementations, the unlocking mechanism can also be determined according to the matching scheme of the optical module and the optical cage. This application embodiment does not limit this. The unlocking component is not shown in the relevant illustrations of the optical module described below to simplify the drawings.

[0130] In this embodiment, the inner wall of the first housing 131 serves as the main heat dissipation surface. A hollow cavity containing the liquid cooling medium is disposed within the first housing 131 of the housing 130. The heating element 122 can be in contact with the first housing 131 for heat exchange. The heat generated by the heating element 122 can be transferred to the opposite first housing 131 and exchanged with the liquid cooling medium within the first hollow cavity 130a. As shown in Figure 3, a first mounting base 133 is provided at the front of the housing 130. Two through holes 1331 are provided on the first mounting base 133, and two first connectors 140 are respectively inserted into the through holes 1331 of the first mounting base 133. The mating interfaces of the two first connectors 140 are both oriented towards the rear end of the optical module 10, for adaptation and connection with the second connector 250 on the main body side of the device. The first connectors 140 are elastically connected to the first housing 131 via a flexible tube 134, achieving an elastic connection between the first connectors 140 and the hollow cavity side. Please refer to Figures 6 and 7 together. Figure 6 is a cross-sectional view of AA in Figure 3, and Figure 7 is a schematic diagram of the docking relationship of the first connector of the optical module shown in Figure 6.

[0131] Two first connectors 140 are respectively connected to the input and output ports of the hollow cavity 130a via flexible tubes 134 to form a liquid supply path and a liquid return path. As shown by the dashed arrows in Figure 6, the low-temperature liquid cooling medium can enter the hollow cavity 130a through the first connector 141 connected to the input port to exchange heat with the shell wall, and the high-temperature liquid cooling medium flows out of the optical module shell 130 through the first connector 140 connected to the output port. In specific implementations, the flexible tube 134 can be a metal hose or a rubber tube, or a composite tube made of metal and rubber materials. The specific choice can be made according to the actual application scenario, and this application embodiment does not limit it. Correspondingly, the outer peripheral surface of the first connector 140 has two spaced-apart protruding limiting portions 141, and the first connector 140 between the two protruding limiting portions 141 is a through section 142, which is inserted into the through hole 1331 of the first mounting base 133.

[0132] The two protruding limiting parts 141 are located on both sides of the first mounting base 133. Each protruding limiting part 141 can abut against the surface of the first mounting base 133 on the corresponding side to limit the amount of movement of the first connector 140 relative to the first mounting base 133 in the insertion and removal direction X, thus forming a first constraint between the first connector 140 and the first mounting base 133.

[0133] The cross-sectional dimension of the insertion section 142 is smaller than the dimension of the insertion hole 1331 of the first mounting base 133. Please refer to Figure 8, which is a partial sectional view of BB shown in Figure 6. In a plane perpendicular to the insertion / removal direction X, based on the matching small-sized insertion section 142 and large-sized insertion hole 1331, the translational vector of the first connector 140 relative to the first mounting base 133 can be restricted, forming a second constraint between the first connector 140 and the first mounting base 133. That is, in a plane perpendicular to the insertion / removal direction X, the first connector 140 can be translated relative to the first mounting base 133 under constraint, having a certain range of degrees of freedom of movement. In this way, it can be ensured that no stress is generated during the docking of the first connector 140 and the second connector 250, such as avoiding docking applications that affect the joint seal, and maintaining good docking reliability.

[0134] Figure 8 illustrates two scenarios where the first connector on the left is translated relative to the first mounting base 133, using the insertion section 142 as an example. Insertion section 142a is shown in the figure as an upward displacement relative to the insertion hole 1331, while insertion section 142b is shown in the figure as a rightward displacement relative to the insertion hole 1331.

[0135] In a specific implementation, the cross-sections of both the insertion section 142 and the insertion hole 1331 can be circular, allowing for the same amount of translation in all directions within a plane perpendicular to the insertion / removal direction X. This design features a simple and reliable structure with low manufacturing costs. In other possible implementations, the cross-sections of the insertion section 142 and the insertion hole 1331 can also be of other shapes; this application does not limit the specific shapes.

[0136] To prevent leakage at the connector mating point from affecting the operation, as shown in Figure 6, the first connector 140 and the first mounting base 133 are located inside the protective cover 150. The rear wall of the protective cover 150 has a through-hole 151, which is positioned opposite to the first connector 140 in the insertion / removal direction, and also opposite to the mating interface of the second connector 250 on the main body of the device. Thus, when inserting the optical module, the through-hole 151 of the protective cover 150 can be fitted over the second connector 250, and the mating position of the first connector 140 and the second connector 250 is located inside the protective cover 150. In the event of abnormal leakage at the mating position, the protective cover 150, fixed to the housing 130, can shield the leakage, preventing splashing and affecting the normal function of the optical module.

[0137] In a specific implementation, two access ports 151 can be provided on the rear wall of the protective cover 150 corresponding to the two first connectors 140. Referring to Figures 3 and 6, the two access ports 151 are positioned opposite to the two first connectors 140 in the insertion / removal direction X. Here, "opposite" means that the two access ports 151 are positioned one-to-one with the two first connectors 140, including the case where the access ports 151 and the first connectors 140 are completely aligned in the insertion / removal direction X, and also the case where the access ports 151 and the first connectors 140 are slightly offset within a tolerance range in the insertion / removal direction X. During the insertion and removal of the optical module, as long as the second connector 250 on the device side can smoothly pass through the corresponding access port 151 and reliably connect with the first connector 140, it is acceptable. This application does not limit the scope of the embodiments.

[0138] Of course, in other possible implementations, the port 151 can also be set to one. In contrast, the implementation method of configuring two ports 151 and corresponding one-to-one with the first connector 140 can reasonably control the possibility of leakage and splashing.

[0139] As shown in the figure, the protective cover 150, which is fixed to the housing 130, is located above the first housing 131, that is, it is set at the installation position corresponding to the first connector 140. In other specific implementations, the first connector 140 and the protective cover 150 can also be located below or beside the housing 130, as long as the first connector 140 is built into the protective cover 150 to prevent leakage and splashing. This application embodiment is not limited.

[0140] To further mitigate the impact of leakage splashing, a second annular sealing ring 152 can be provided around the outer periphery of the passage 151. As shown in Figure 6, this second annular sealing ring 152 can be embedded in the inner wall of the passage 151. After the optical module is inserted, the second connector 250 is inserted into the protective cover 150 through the passage 151, and the outer peripheral surface of the second connector 250 can radially abut against the second annular sealing ring 152, forming a seal at the passage 151. In this way, leakage splashing can be controlled to the maximum extent when abnormal leakage occurs at the docking position.

[0141] The installation structure of the second annular sealing ring 152 is not limited to being completely built into the passage 151 as shown in the figure. In other specific implementations, the second annular sealing ring 152 may also be partially embedded in the inner wall of the passage 151. This application does not limit the embodiments.

[0142] In other implementations, a first annular sealing membrane (not shown) can also be used for the second annular elastic element that achieves a seal at the port 151. The outer edge of the first annular sealing membrane is sealed to the end face of the corresponding protective cover 150 around the port 151, and the dimension of its inner edge can be smaller than the outer circumferential dimension of the second connector 250. With this configuration, after the second connector 250 is inserted into the protective cover 150 through the port 151, the inner edge region of the first annular sealing membrane can be expanded and deformed, covering the outer circumferential surface of the second connector 250, thus forming a reliable seal at the port 151.

[0143] To reduce the impact of leakage on the normal performance of the optical module, a drainage channel can be formed on the housing of the optical module in a specific implementation. As shown in Figures 6, 7, and 8, the drainage channel 137 extends vertically through the housing 130, and the upper opening of the drainage channel 137 is located inside the protective cover 150. In this way, when abnormal leakage occurs at the docking position, the liquid working fluid collected in the protective cover 150 can be quickly discharged through the drainage channel 137, which can prevent excessive liquid accumulation from causing adverse effects.

[0144] In a specific implementation, based on the housing 130 formed by the first housing 131 and the second housing 132, the flow guide 137 includes a two-part channel structure. The first flow guide 1371 extends vertically through the first housing 131, and the second flow guide 1372 extends vertically through the second housing 132. The first flow guide 1371 and the second flow guide 1372 are connected to form the flow guide 137. As shown in the figure, there are two flow guides 137, located on both sides of the housing 130, to facilitate the rapid discharge of the liquid working fluid. It is understood that the location and number of flow guides 137 can be configured according to the overall performance requirements of the product, and this application embodiment does not limit this.

[0145] In other specific implementations, the housing 130 of the optical module 10 is not limited to the matching form of the first housing 131 and the second housing 132 shown in the figure. For example, the two sides of the first housing 131 cover the sides of the second housing 132 (not shown in the figure). Correspondingly, the flow channel 137 can be formed only on the first housing 131, and the liquid working fluid can still be quickly discharged through the flow channel 137. As another example, the housing 130 is a one-piece housing (not shown in the figure). Correspondingly, the flow channel 137 is formed by a single-slot structure formed on the one-piece housing. It should be understood that the configuration can be determined according to the requirements of the overall product design and process implementation cost, and the embodiments of this application do not limit it.

[0146] For the first connector 140 and the first mounting base 133, which have a first constraint and a second constraint, other structural forms can also be adopted. Please refer to Figures 9 and 10, where Figure 9 is a partial cross-sectional view of another optical module provided by an embodiment of this application, and Figure 10 is a schematic diagram of the assembly relationship of the first connector shown in Figure 9. In order to clearly illustrate the differences and connections between this embodiment and the foregoing embodiments, the same functional components or structures are indicated by the same reference numerals in the figures.

[0147] Compared with the embodiment described in FIG6, the difference of the embodiment of this application is that: two first mounting bases 133 are provided, and the insertion holes 1331 opened on the first mounting bases 133 are arranged opposite to each other; correspondingly, the outer peripheral surface of the first connector 140 has an outward protrusion limiting part 141 and two insertion sections 142, the two insertion sections 142 are respectively located on both sides of the outward protrusion limiting part 141, and are correspondingly inserted into the mounting holes 1331 of the first mounting base 133 on the corresponding side.

[0148] As shown in Figures 9 and 10, the two first connectors 140 are elastically connected to the first housing 131 via flexible tubes 134, achieving an elastic connection between the first connectors 140 and the hollow cavity side. The protruding limiting portion 141 of the first connector 140 is located between the two first mounting seats 133, and can abut against the surface of the corresponding first mounting seat 133 to limit the movement of the first connector 140 relative to the first mounting seat 133 in the insertion / removal direction X, forming a first constraint between the first connector 140 and the first mounting seat 133. Overall, the two first mounting seats bear the butt joint stress, resulting in higher structural stability.

[0149] Similarly, the cross-sectional dimensions of the insertion section 142 are all smaller than the dimensions of the insertion hole 1331 of the corresponding first mounting base 133. In a plane perpendicular to the insertion / removal direction X, based on the matching small-sized insertion section 142 and large-sized insertion hole 1331, the translation vector of the first connector 140 relative to the first mounting base 133 is restricted, forming a second constraint between the first connector 140 and the first mounting base 133.

[0150] The specific implementation of other functional components can be consistent with the implementation method of the aforementioned embodiments. Further details will not be provided here.

[0151] For the elastic connection between the first connector 140 and the hollow cavity side, the aforementioned embodiments all employ a flexible tube 134. In other specific implementations, an annular elastic element can also be used to achieve the elastic connection between the first connector and the hollow cavity side. Please refer to Figures 11 and 12, where Figure 11 is a partial cross-sectional view of another optical module provided by an embodiment of this application, and Figure 12 is a schematic diagram of the assembly relationship of the first connector shown in Figure 11. To clearly illustrate the differences and connections between this embodiment and the aforementioned embodiments, components or structures with the same function are indicated by the same reference numerals in the figures.

[0152] Compared with the embodiment described in FIG6, the difference of the embodiment of this application is that: the front end of the housing 130 of the optical module has an outward protrusion 135, the input port 1351 and the output port 1352 of the hollow cavity are disposed on the outward protrusion 135, and each first connector 140 is connected to the outward protrusion 135 on the outer periphery of the input port 1351 and the output port 1352 respectively through the first annular sealing ring 136, so as to form an elastic connection between the corresponding first connector 140 and the hollow cavity side.

[0153] As shown in Figure 11, the protruding portion 135 has an internal flow channel 135a, which can serve as part of the hollow cavity of the housing and communicate with the hollow cavity 130a of the first housing 131. Referring to Figure 12, the inlet 1351 and outlet 1352 are located on the rear end side of the protruding portion 135. Two first connectors 140 are respectively inserted into the corresponding inlet 1351 and outlet 1352. Two first annular sealing rings 136 are nested between the outer peripheral surface of the first connectors 140 and the corresponding inlet 1351 and outlet 1352. Thus, the annular elastic element formed by the first annular sealing rings 136 achieves an elastic connection with the hollow cavity side, accommodating possible translational movement during the insertion and removal of the first connectors 140, while also ensuring reliable sealing.

[0154] In a specific implementation, the protruding portion 135 can be integrally formed with the first housing 131, and the hollow cavity on the housing side is formed by the internal flow channel 135a of the protruding portion 135 and the hollow cavity 130a of the first housing 131. In other possible embodiments, the protruding portion 135 and the first housing 131 can also be processed independently and then assembled and fixed as a whole, which can also achieve communication between the internal flow channel 135a and the hollow cavity 130a. The embodiments in this application are not limited.

[0155] In other specific implementations, the first annular elastic element that enables the elastic connection between the first connector and the hollow cavity side can also be a first annular sealing membrane (not shown in the figure). The inner edge of the first annular sealing membrane can be sealed to the outer peripheral surface of the first connector, while its outer edge is sealed to the end faces of the corresponding protrusions on the outer periphery of the inlet and outlet. This configuration also achieves reliable sealing while ensuring the elastic connection between the first connector and the hollow cavity side.

[0156] The specific implementation of other functional components can be consistent with the implementation method of the aforementioned embodiments. Further details will not be provided here.

[0157] To enable timely alarms upon leakage, the optical module provided in this application embodiment can also be configured with a liquid leakage sensor. Please refer to Figures 13 and 14, where Figure 13 is a simplified structural diagram of another optical module provided in this application embodiment, and Figure 14 is a schematic diagram of the communication architecture of a liquid leakage sensor provided in this application embodiment. To clearly illustrate the differences and connections between this embodiment and the aforementioned embodiments, components or structures with the same functions are indicated by the same reference numerals in the figures.

[0158] The optical module 10 includes a leakage sensor 170, which is located below the first connector 140 and is used to acquire leakage information. As shown in Figure 13, the leakage sensor 170 is communicatively connected to the printed circuit board assembly 120 and can upload the leakage information to the monitoring unit on the device side via the printed circuit board assembly. In a specific implementation, a communication signal line can be independently arranged on the circuit board 121 to communicate with the monitoring unit 800 set on the device node board, such as, but not limited to, a switch or server. In practical application scenarios, such as, but not limited to, server racks or data centers, the leakage information can be further uploaded to the monitoring system to trigger an alarm, so that maintenance personnel can arrange maintenance in a timely manner to avoid expanding the impact of the leakage.

[0159] Regarding the implementation of the leakage alarm, the leakage sensor 170 can be configured to output a low-level signal when the leakage information indicates no leakage and a high-level signal when the leakage information indicates a leakage. In other words, when the leakage information indicates a leakage, an alarm signal is issued through the monitoring unit.

[0160] The leak sensor 170 can take different types of sensor forms, such as, but not limited to, leak detection membranes. It should be understood that any sensor capable of detecting water-based liquids is acceptable. This application does not limit the scope of the embodiments.

[0161] In one application scenario, a leakage detection membrane 170a covers the upper surface of the housing 130. Please refer to Figures 15 and 16 together. Figure 15 is a simplified structural diagram of another optical module provided in this embodiment of the application, which is a frontal projection view formed along the insertion / removal direction. Figure 16 is a schematic diagram of the layout of the leakage detection membrane shown in Figure 15, formed from a viewpoint C in Figure 15. As shown in the figures, the leakage detection membrane 170a is located inside the protective cover 150 and covers the upper surface of the housing 130.

[0162] In another application scenario, the leakage detection membrane 170b covers the sidewall of the protective cover 150. Please refer to Figure 17, which is a simplified structural diagram of another optical module provided in this embodiment of the application. This figure is a frontal projection view formed along the insertion / removal direction. As shown in the figure, the leakage detection membrane 170b is located inside the protective cover 150 and covers the sidewall of the protective cover 150.

[0163] Based on the embodiments described in Figures 15 and 17, the leak detection membrane can be further configured such that the leak information includes the amount of leakage. For the embodiment described in Figure 15, the current leakage amount can be characterized by the area of ​​the wetted region detected by the leak detection membrane; for the embodiment described in Figure 17, the current leakage amount can be characterized by the height of the accumulated liquid detected by the leak detection membrane. This enables a leak alarm method with further refined granularity, facilitating maintenance personnel to schedule repairs and maintenance based on the actual leakage situation.

[0164] Furthermore, in the optical modules described in the foregoing embodiments, the cavity 130a is formed within the first housing 131, and heat exchange occurs through the first housing 131 with the heat-generating device 122 of the PCBA. That is, the inner wall of the first housing 131 serves as the main heat dissipation surface, and the first housing 131 is equivalent to a cold plate containing a liquid cooling medium. Of course, in other possible implementations, the hollow cavity of the optical module 10 for containing the liquid cooling medium can also be formed within the second housing 132 (not shown in the figure), that is, the inner wall of the second housing 132 serves as the main heat dissipation surface; specifically, a transition hollow cavity (not shown in the figure) is formed on the first housing 131, and communicates with the hollow cavity within the second housing 132 through the transition hollow cavity to form a liquid cooling medium circulation.

[0165] In the case where the hollow cavity 130a is formed within the first housing 131, to further improve the overall heat dissipation capacity of the optical module, in a specific implementation, the second housing 132 side can be configured as an auxiliary heat dissipation surface. Please refer to Figures 18 and 19, where Figure 18 is a simplified structural diagram of another optical module provided by an embodiment of this application, and Figure 19 is a partial view along direction D in Figure 18. To clearly illustrate the differences and connections between this embodiment and the aforementioned embodiments, components or structures with the same function are indicated by the same reference numerals in the figures.

[0166] Compared with the optical module described in the previous embodiments, the difference in this implementation is that the second housing 132 of the housing 130, opposite the circuit board 121, has a first heat exchange plate 1321 as its body, and the first heat exchange plate 1321 is connected to the first housing 132 through a heat-conducting pillar 138. In this way, the second housing 132 provides an auxiliary heat dissipation surface through the first heat exchange plate 1321, and achieves good heat transfer capability through the heat-conducting pillar 138. Based on the side cold plate structure of the first housing 131, the first heat exchange plate 1321 is used to achieve a combined heat exchange effect, resulting in high overall heat exchange efficiency.

[0167] In its implementation, the first heat spreader 1321 and the heat-conducting pillars 138 are made of thermally conductive materials, such as, but not limited to, copper, aluminum, copper alloys, or aluminum alloys. Referring to Figure 19, the heat-conducting pillars 138, disposed within the housing 130, can pass through the circuit board 121 and connect to the cold plate structure on the side of the first housing 131 and the first heat spreader 1321, respectively. Specifically, the number of heat-conducting pillars 138 and their placement within the housing 130 can be selected according to the overall product design requirements, as long as they can reasonably avoid the components and conductor layers of the circuit board 121.

[0168] Preferably, one end of the heat-conducting pillar 138 can be detachably connected to the cold plate on the side of the first housing 131 for easy inspection and maintenance. Simultaneously, a thermally conductive adhesive layer (not shown in the figure) can be provided between the mating surfaces of the heat-conducting pillar 138 and the first housing 131 to ensure good heat transfer efficiency. Furthermore, the other end of the heat-conducting pillar 138 can be welded to the first heat-dissipating plate 1321, or the two can be integrally formed; this embodiment does not impose limitations.

[0169] The specific implementation of other functional components can be consistent with the implementation method of the aforementioned embodiments. Further details will not be provided here.

[0170] To improve safety and reliability, the architecture of the first housing can be further optimized. Please refer to Figures 20 and 21, where Figure 20 is a simplified structural diagram of another optical module provided in an embodiment of this application, and Figure 21 is a simplified assembly diagram of the optical module shown in Figure 20 and the main body of the device. To clearly illustrate the differences and connections between this embodiment and the foregoing embodiments, the same functional components or structures are indicated by the same reference numerals in the figures.

[0171] Compared with the optical modules described in Figures 18 and 19, the difference in this embodiment is that: the first housing 131 includes a first housing body 1311 and a second housing body 1312 connected to each other. The first housing body is located at the front end of the first housing 131, and a hollow cavity (not shown in the figure) is formed inside the first housing body 1311. The second housing body 1312 is a second heat spreader, and the second heat spreader extends to the rear end of the first housing 131. Correspondingly, the first heat spreader 1321 and the second heat spreader (1312) are connected by a heat-conducting column 138.

[0172] As shown in Figures 20 and 21, the second heat exchanger (second housing body 1312) connected to the cold plate (first housing body 1311) serves as the main heat dissipation surface, while the first heat exchanger 1321 serves as the auxiliary heat dissipation surface, together achieving a heat exchange effect. In this way, after the optical module 10 is inserted into place, the first housing 131, acting as the cold plate, can be located outside the optical cage. Leakage caused by a cold plate failure will not affect the internal components of the equipment, further improving the safety and reliability of equipment operation.

[0173] In a specific implementation, the second shell body 1312, which serves as a heat spreader, can extend to the front end of the first shell body 131. The front parts of the first shell body 1311 and the second shell body 1312 are stacked together, resulting in good heat conduction efficiency. Here, the first shell body 1311 and the second shell body 1312 can be welded together.

[0174] In other possible implementations, the first shell body 1311 and the second shell body 1312 can be integrally formed (not shown in the figure), which can also effectively avoid the possibility of leakage affecting the operation of the equipment. The embodiments in this application are not limited.

[0175] The specific implementation of other functional components can be consistent with the implementation method of the aforementioned embodiments. Further details will not be provided here.

[0176] Furthermore, the optical modules described in the foregoing embodiments all have a protective cover and a flow guide groove structure configured on the front end side of the housing. In other specific implementations, the protective cover and flow guide groove structure can also be selectively configured, for example, only the protective cover can be configured, or only the flow guide groove can be configured, or neither the protective cover nor the flow guide groove structure can be configured.

[0177] Please refer to Figure 22, which is a partial cross-sectional view of another optical module provided in an embodiment of this application. To clearly illustrate the differences and connections between this embodiment and the foregoing embodiments, components or structures with the same functions are shown in the figure using the same reference numerals.

[0178] Compared with the schemes described in Figures 6 and 7 above, the difference in this embodiment is that the optical module 10 is not equipped with a protective cover and a flow guide. The specific implementation of other functional components can be consistent with the implementation methods of the aforementioned embodiments. Further details are omitted here.

[0179] Please refer to Figure 23, which is a partial cross-sectional view of another optical module provided in an embodiment of this application. To clearly illustrate the differences and connections between this embodiment and the foregoing embodiments, the same functional components or structures are shown in the figure using the same reference numerals.

[0180] Compared with the solutions described in Figures 9 and 10 above, the difference in this embodiment is that the optical module 10 is not equipped with a protective cover and a flow guide. The specific implementation of other functional components can be consistent with the implementation methods of the aforementioned embodiments. Further details will not be provided here.

[0181] Furthermore, based on the optical modules described in the foregoing embodiments, optical module groups can also be constructed. Please refer to Figures 24, 25, and 26 together, where Figure 24 is a top view of an optical module group provided in an embodiment of this application, Figure 25 is a front view of the optical module group shown in Figure 24, and Figure 26 is a side view of the optical module group shown in Figure 24. To clearly illustrate the differences and connections between this embodiment and the foregoing embodiments, the same functional components or structures are indicated by the same reference numerals in the figures.

[0182] The optical module assembly 10a includes four optical modules 10 arranged sequentially, with the hollow cavities within the housings of each optical module 10 interconnected. As shown in the figure, the interconnected hollow cavities are located on the top wall of each housing, i.e., within the first housing 131 shown in the figure. In the arrangement direction of the optical modules 10, two first connectors 140 are located on either side of the four optical modules 10. Thus, the cryogenic liquid cooling medium can enter the optical module assembly 10a via the first connector 140 on one side, and flow sequentially into the hollow cavities of each optical module 10 along the path shown by the dashed lines in the figure. The high-temperature liquid cooling medium, after heat exchange, flows out along the path shown by the solid lines in the figure, and exits the optical module assembly 10a via the first connector 140 on the other side.

[0183] It is understood that the optical module group 10a shown in the figure, which integrates four optical modules, is an example. In actual application scenarios, this optical module group can also integrate other multiple optical modules, such as, but not limited to, integrating two, three, or five optical modules. The embodiments in this application are not limited.

[0184] To improve module integration, at least the front ends of each first housing 131 can be connected to form an interconnecting plate 131a, and the interconnecting plate 131a extends to both sides above the two first connectors 140, with each first connector 140 connected to the corresponding side of the interconnecting plate 131a. Overall, the height of the optical module assembly is effectively controlled, making it compatible with more optical module protocol applications, such as, but not limited to, SFP, SFP+, XFP, QSFP+, QSFP28, or OSFP protocols.

[0185] Each of the two first connectors 140 located on either side is provided with a protective cover 150, meaning that the first connector 140 and the protective cover 150 are configured in a one-to-one correspondence. Each protective cover 150 is located below the corresponding side interconnecting plate 131a and can be fixed thereto. Accordingly, the first connector 140 is built into the protective cover 150 to prevent liquid splashing. Optionally, a guide channel 153 can be formed at the bottom of the protective cover 150. When abnormal leakage occurs at the docking position, the liquid working fluid collected in the protective cover 150 can be quickly discharged through the guide channel 153, which can avoid excessive liquid accumulation and adverse effects. The leakage sensor 170 is set inside the protective cover 150 below the first connector 140, for example, but not limited to, fixed to the bottom structure of the protective cover 150, to obtain leakage information.

[0186] Of course, for the optical module group 10a, the protective cover 150 and the leakage sensor 170 can be optionally configured in other possible implementations.

[0187] In another implementation, the two first connectors 140 may be located on the same side of the plurality of optical modules 10. In yet another implementation, the hollow cavity connecting each optical module in the optical module group may be located on the bottom wall of each housing, i.e., within the second housing 132 (not shown in the figure). The specific implementation can be determined according to the overall requirements of the product, and is not limited in the embodiments of this application.

[0188] The specific implementation of other functional components can be consistent with the implementation method of the aforementioned embodiments. Further details will not be provided here.

[0189] It should be noted that the liquid connection connections on the optical module side and the device side are configured in a one-to-one correspondence in the insertion direction (X). In the optical module implementation schemes described in the aforementioned embodiments, the two first connectors 140 are arranged flush in the height direction. As shown in Figures 1 and 2, for the row-arranged optical modules 10, the second connectors 250 on the device side also need to be arranged in a row and flush in the height direction.

[0190] In practical implementation, the main body of the equipment can be equipped with corresponding second connectors 250 through a pair of first supply manifolds 260a and first return manifolds 260b, which can reasonably control the process implementation cost. Please refer to Figure 27, which is a schematic diagram of the assembly structure of a first manifold group provided in an embodiment of this application.

[0191] As shown in Figure 27, the tube bodies of the first liquid supply manifold 260a and the first liquid return manifold 260b extend along the row arrangement direction of the optical cage (refer to Figures 1 and 2). The paired second connectors 250 are respectively connected to the corresponding first liquid supply manifold 260a and first liquid return manifold 260b. The first manifold group 260 has an irregular tube structure to accommodate the optical module architecture where the two first connectors 140 are flush in the height direction.

[0192] In this embodiment, the pipe walls on the opposing sides of the first supply manifold 260a and the first return manifold 260b each include a plurality of protrusions arranged at intervals. In the height direction, the protrusions 260a1 of the first supply manifold 260a and 260b1 of the first return manifold 260b are staggered, with the protrusions on one manifold interlocked beside the protrusions on the other. That is, the protrusions 260a1 of the first supply manifold 260a are interlocked beside the protrusions 260b1 of the first return manifold 260b. Multiple sets of second connectors 250 are arranged and installed on the corresponding protrusions (260a1, 260b1) of the first supply manifold 260a and the first return manifold 260b. In this way, the interface of the liquid cooling branch is formed on the first manifold group 260, and the paired second connectors 250 of the first manifold group 260 are also arranged at the same height to meet the liquid circuit plugging and unplugging requirements of the optical module architecture in the aforementioned embodiment.

[0193] To further simplify the first manifold assembly on the equipment side, the two first connectors on the optical module side can be staggered in the height direction. Please refer to Figures 28 and 29, where Figure 28 is a simplified structural diagram of another optical module provided in this embodiment, and Figure 29 is a schematic diagram of the assembly structure of another first manifold assembly provided in this embodiment. To clearly illustrate the differences and connections between this embodiment and the aforementioned embodiments, components or structures with the same function are indicated by the same reference numerals in the figures.

[0194] Compared with the optical module solution described in the previous embodiments, as shown in Figure 28, the difference in this embodiment is that the two first connectors 140 of the optical module 10 are staggered in the height direction. The specific implementation of other functional components can be consistent with the implementation method of the previous embodiments. Further details are omitted here.

[0195] Accordingly, for the optical module architecture where the two first connectors 140 are staggered in height, this embodiment provides a first manifold group 260 as a strip-shaped tube structure. Referring to Figure 29, the tube bodies of the strip-shaped first liquid supply manifold 260c and first liquid return manifold 260d extend along the row arrangement direction of the optical cage, and the second connectors 250 on the first liquid supply manifold 260c and first liquid return manifold 260d are arranged sequentially at intervals. This design features a simple structure and ease of manufacturing. Thus, the paired second connectors 250 on the first manifold group 260 are staggered in height, satisfying the liquid path insertion and removal requirements of the optical module architecture described in Figure 28.

[0196] In a specific implementation, the first manifold group 260 of the liquid cooling branch on the equipment side can be arranged inside the equipment housing 240 as shown in FIG. 21 to save space. Please refer to FIG. 30, FIG. 31 and FIG. 32, wherein FIG. 30 is a side view of another electronic device provided in an embodiment of this application, FIG. 31 is a front view of the panel of the electronic device shown in FIG. 30, and FIG. 32 is a top view of a cabinet provided in an embodiment of this application. In order to clearly show the differences and connections between this embodiment and the foregoing embodiments, the same functional components or structures are indicated by the same reference numerals in the figures.

[0197] As shown in Figures 30 and 31, the electronic device 100 can be an optical communication device such as a switch, including multiple optical modules 10 arranged in multiple rows; the main body 20 includes multiple optical cages 210 embedded in the panel of the device housing 240, and the multiple optical cages 210 are arranged in multiple rows accordingly. The rows of optical modules 10 can be arranged sequentially at intervals, and correspondingly, the first manifold group 260 on the side of the main body 20 corresponds one-to-one with the rows of optical modules 10; that is, the number of rows of the first manifold group 260 is the same as the number of rows of optical modules 10. In this embodiment, the first manifold group 260 is located inside the device housing 240. In specific implementation, the first manifold group 260 can serve as a structural component of the device housing 240, also serving to enhance the overall strength of the device housing 240.

[0198] As shown in Figure 32, the cabinet 1000 includes the electronic device 100 shown in Figure 30. In a specific implementation, the electronic device 100 can be a switch node installed inside the cabinet 200. The cabinet 200 is equipped with a third manifold group 300, which includes a third liquid supply manifold 300a and a third liquid return manifold 300b. Thus, the low-temperature liquid cooling medium can be transported to the liquid cooling branch of the electronic device 100 through the third liquid supply manifold 300a, and then transported to the hollow cavity of the optical module 10 through the first liquid supply manifold 260a of the liquid cooling branch; the high-temperature working medium, having completed heat exchange, is returned to the third liquid return manifold 300b through the first liquid return manifold 260b of the liquid cooling branch. In the figure, the direction of working medium flow in the liquid cooling branch within the electronic device 100 is indicated by dashed arrows.

[0199] In this embodiment, the paired first supply manifold and first return manifold (first manifold group 260) are configured as multiple groups, each corresponding one-to-one with the rows of optical cages 210. The figure illustrates the assembly relationship of the components using three rows of optical modules as an example. In other specific implementations, the rows of optical modules are not limited to the three rows shown in the figure; for example, but not limited to one row, two rows, or other multiple rows. This application does not impose limitations on the embodiments.

[0200] For an electronic device 100 having multiple sets of first manifold groups 260, in a specific implementation, the liquid cooling branch on the device body 20 side also includes a second manifold group 270. As shown in Figure 31, the light-emitting modules 10 are arranged in a row horizontally, and the multiple sets of first manifold groups 260 extend horizontally. Correspondingly, the second manifold group 270 includes a second liquid supply manifold 270a and a second liquid return manifold 270b extending vertically. The second liquid supply manifold 270a is connected to each of the first liquid supply manifolds, and the second liquid return manifold 270b is connected to each of the first liquid return manifolds. Here, the second liquid supply manifold 270a and the second liquid return manifold 270b are respectively located on both sides of the device housing 240, that is, at both ends of the first manifold group 260.

[0201] In other possible implementations, the second manifold group 270 may be located on the same side of the equipment housing 240. Please refer to Figure 33, which is a schematic diagram of another manifold layout provided by an embodiment of this application. For the sake of simplicity, Figure 33 only shows the first manifold group 260 and the second manifold group 270 on the equipment side, and the third manifold group 300 on the cabinet side.

[0202] The second manifold group 270 is located on the same side of the equipment housing 240. In the extension direction of the first manifold group 260, the second liquid supply manifold 270a and the second liquid return manifold 270b are located on the same side of each first manifold group 260 and are connected to each first liquid supply manifold and first liquid return manifold respectively to form corresponding liquid supply paths and liquid return paths.

[0203] The third manifold group 300 can be located on the side of the cabinet 200 away from the equipment insertion side. For example, it can be located on the same side of the rear of the cabinet 200 as shown in the figure, or it can be located on both sides of the rear of the cabinet. That is, the third liquid supply manifold 300a and the third liquid return manifold 300b are respectively arranged on both sides. The specific arrangement can be determined according to the overall design requirements of the cabinet. This application does not limit the specific arrangement.

[0204] In a specific implementation, the second manifold group 270 can be set inside the equipment housing 240 on the side near the equipment panel. The second manifold group 270 is directly connected and communicates with each of the first manifold groups 260, and can be extended to the side opposite to the third manifold group 300 through the intermediate pipe, so as to achieve communication with the third manifold group 300 (not shown in the figure).

[0205] In other specific implementations, the second manifold group 270 can also be located inside the equipment housing 240 on the other side away from the equipment panel, so as to communicate with the third manifold group 300, and can be indirectly connected and communicated with each of the first manifold groups 260 through intermediate pipes (not shown in the figure).

[0206] It should be noted that for computing devices such as server nodes within the rack, as shown in Figure 1, the corresponding device node includes a row of optical modules 10, or includes optical modules 10 arranged in a non-row manner. Therefore, the second manifold group 270 (not shown in the figure) does not need to be installed within the main body 20 of this electronic device. In other words, the second manifold group 270 can be selectively configured for the computing node.

[0207] In other specific implementations, the first manifold group 260 of the equipment-side liquid cooling branch can also be located outside the equipment housing 240. This facilitates individual maintenance of the first manifold group 260. Please refer to Figures 34 and 35, where Figure 34 is a side view of another electronic device provided in an embodiment of this application, and Figure 35 is a top view of another cabinet provided in an embodiment of this application. To clearly illustrate the differences and connections between this embodiment and the foregoing embodiments, the same functional components or structures are indicated by the same reference numerals in the figures.

[0208] Compared to the electronic device solution described in Figure 30, the difference in this embodiment is that the first manifold assembly 260 is located outside the device housing 240 and can be fixedly connected to the device housing 240. For example, but not limited to, each first manifold assembly 260 can be fixedly connected to the device housing 240 in a detachable manner. The specific connection method can be determined according to the overall design of the device. For example, threaded fasteners or snap-fit ​​structures can be used to achieve a detachable fixed connection, so as to facilitate maintenance operations of the first manifold assembly 260. This application embodiment is not limited.

[0209] As shown in Figure 34, the electronic device 100 can also be a switch, including multiple rows of optical modules 10 arranged at intervals. As shown in Figure 35, the cabinet 1000 includes the electronic device 100 shown in Figure 32.

[0210] The specific implementation of other functional components can be consistent with the implementation method of the aforementioned embodiments. Further details will not be provided here.

[0211] In the fluid connection between the optical module side and the device side, the mating stress between the first connector 140 and the second connector 250 in the aforementioned embodiments is eliminated on the first connector 140 side. In a specific implementation, this mating stress can also be eliminated on the second connector 250 side. Please refer to Figure 36, which shows a simplified diagram of the mating relationship of the second connector 250 on the device body side. To clearly illustrate the differences and connections between this embodiment and the aforementioned embodiments, components or structures with the same function are indicated by the same reference numerals in the figure.

[0212] In this embodiment, the second connector 250 is elastically connected to the first manifold group 260 of the liquid cooling branch. The main body 20 includes a fixedly installed second connector mounting base 261. Each second connector 250 is respectively installed in the second connector mounting base 261, and there is a first constraint and a second constraint between the second connector 250 and the second connector mounting base 261. The first constraint is configured to limit the amount of movement of the second connector 250 relative to the second connector mounting base 261 in the insertion and removal direction, and the second constraint is configured to limit the translation vector of the second connector 250 relative to the second connector mounting base 261 in a plane perpendicular to the insertion direction X.

[0213] Thus, in a plane perpendicular to the insertion / removal direction X, the second connector 250 can be translated relative to the second mounting base 261 under constraint. Based on the second constraint between the second connector 250 and the second mounting base 261, the translation vector of the second connector 250 relative to the second mounting base 261 can be limited, meaning the second connector 250 has a certain range of degrees of freedom of movement in a plane perpendicular to the insertion / removal direction X. On the other hand, based on the first constraint between the second connector 250 and the second mounting base 261, the second connector 250 can remain relatively fixed when inserting / removing the optical module 10, meeting the reliability requirements of the insertion / removal operation. This ensures that no stress is generated during the mating process of the first connector 140 and the second connector 250, maintaining good mating reliability. Furthermore, the tolerance accumulation on the assembly dimensional chain of the interface between the optical module side and the equipment side can also be adaptively adjusted through the second constraint between the second connector 250 and the second mounting base 261, eliminating the potential impact of tolerance accumulation.

[0214] Here, in the adaptation relationship between the second connector 250 and the second mounting base 261, the second mounting base 261 is a relatively fixed structure. In this embodiment, the second mounting base 261 is fixed to the first manifold assembly 260, that is, each second mounting base 261 is fixed to the corresponding first supply manifold and first return manifold. Please refer to Figures 37 and 38, where Figure 37 is a schematic diagram of the assembly relationship of a second connector provided in an embodiment of this application, and Figure 38 is a cross-sectional view of EE in Figure 37.

[0215] In this embodiment, the second mounting base 261 has two through holes 2611, as shown in Figure 37. Two second connectors 250 are respectively inserted into the through holes 2611 of the second mounting base 261, and the second connectors 250 are elastically connected to the first manifold group 260 via flexible tubes 262, achieving an elastic connection between the second connectors 250 and the equipment-side liquid cooling branch, thus forming a liquid supply path and a liquid return path. This further reduces the precision requirements for the processing of the elastic connection components and structures, and while achieving the elastic connection, it allows for reasonable control of process implementation costs. In specific implementations, the flexible tube 262 can be a metal hose, a rubber tube, or a composite tube made of metal and rubber materials; the specific choice depends on the actual application scenario, and this embodiment does not impose any limitations.

[0216] Correspondingly, the outer peripheral surface of the second connector 250 has two protruding limiting portions 251 spaced apart, and the second connector 250 between the two protruding limiting portions 251 is a through section 252, which is inserted into the through hole 2611 of the second mounting base 261.

[0217] The two protruding limiting parts 251 are located on both sides of the second mounting base 261. Each protruding limiting part 251 can abut against the surface of the second mounting base 261 on the corresponding side to limit the movement of the second connector 250 relative to the second mounting base 261 in the insertion / removal direction X, thus forming a first constraint between the second connector 250 and the second mounting base 261.

[0218] The cross-sectional dimension of the insertion section 252 is smaller than the dimension of the insertion hole 2611 of the second mounting base 261. In a plane perpendicular to the insertion / removal direction X, based on the compatible small-sized insertion section 252 and large-sized insertion hole 2611, the translational vector of the second connector 250 relative to the second mounting base 261 can be restricted, forming a second constraint between the second connector 250 and the second mounting base 261. Thus, the second connector 250 can be translated relative to the second mounting base 261 under constraint, possessing a certain range of degrees of freedom. This ensures that no stress is generated during the mating process between the first connector 140 and the second connector 250.

[0219] In a specific implementation, the cross-sections of both the insertion section 252 and the insertion hole 2611 can be circular, allowing for the same amount of translation in all directions within a plane perpendicular to the insertion / removal direction X. In other possible implementations, the cross-sections of the insertion section 252 and the insertion hole 2611 can also be of other shapes, which are not limited in this embodiment.

[0220] Furthermore, the relatively fixed second mounting base 261 is not limited to being fixed to the first manifold assembly 260. It should be understood that the second mounting base 261 can also be fixed to other fixed structures on the equipment side, such as, but not limited to, being fixed to the equipment housing, or adopting a design integrated with the equipment panel (not shown in the figure). The embodiments of this application are not limited.

[0221] Furthermore, two second mounting bases can be configured, with each second connector having an outwardly protruding limiting portion on its outer peripheral surface. The second connectors on either side of the outwardly protruding limiting portion are insertion sections (not shown in the figure). After assembly, the outwardly protruding limiting portion is located between the second mounting bases. A first constraint is formed between the opposing surfaces of the two second mounting bases and the outwardly protruding limiting portion, and a second constraint is formed between the insertion section and the insertion hole. The specific configuration can be selected based on the overall product design; this application does not limit the specific configuration.

[0222] Other structural forms can also be adopted for the elastic connection between the second connector 250 and the equipment-side liquid cooling branch. Please refer to Figures 39 and 40, where Figure 39 is a schematic diagram of the assembly relationship of a second connector provided in an embodiment of this application, and Figure 40 is a sectional view of FF in Figure 39. In order to clearly show the differences and connections between this embodiment and the foregoing embodiments, the same functional components or structures are indicated by the same reference numerals in the figures.

[0223] Compared with the scheme described in Figure 38, the difference in this implementation scheme is that each second connector 250 is connected to the first manifold group 260 through a third annular elastic element 263 to form an elastic connection between the corresponding second connector 250 and the equipment-side liquid cooling branch.

[0224] As shown in Figure 40, the two third annular elastic elements 263 can be third annular sealing rings, nested between the outer peripheral surface of the second connector 250 and the corresponding interface. In this way, the third annular sealing rings achieve an elastic connection with the hollow cavity side, accommodating possible translational movements of the second connector 250 while ensuring reliable sealing.

[0225] In other possible implementations, the third annular elastic element can also be a third annular sealing membrane (not shown in the figure). The inner edge of the third annular sealing membrane can be sealed to the outer peripheral surface of the second connector, while its outer edge is sealed to the end face of the interface ferrule. This configuration can also achieve reliable sealing while realizing the elastic connection between the second connector and the first manifold assembly 260.

[0226] The specific implementation of other functional components can be consistent with the implementation method of the aforementioned embodiments. Further details will not be provided here.

[0227] To further prevent the spread of the effects of leakage failure, the cabinet provided in this application embodiment may also include a drainage system. Please refer to Figures 41 and 42, where Figure 41 is a front view of another cabinet provided in this application embodiment, and Figure 42 is a top view of the cabinet shown in Figure 41. To clearly illustrate the differences and connections between this embodiment and the foregoing embodiments, components or structures with the same functions are indicated by the same reference numerals in the figures.

[0228] As shown in Figure 42, a liquid receiving tank 280 is also provided on the outside of the device housing 240. The liquid receiving tank 280 is arranged one-to-one with the row of optical cages (optical modules 10), and the liquid receiving tank 280 is located below the second connector 250 (first connector 140). The upper edge of the liquid receiving tank 280 is not higher than the lower edge of the insertion port of the corresponding optical cage to avoid affecting the insertion and removal operation of the optical module 10.

[0229] In this way, when a leakage fault occurs at the docking position of the first connector 140 and the second connector 250, the leaked liquid working fluid can fall into the liquid receiving tank 280 below, for example, but not limited to, flowing into the liquid receiving tank 280 through the guide channel 137 of the optical module side housing 130, or flowing into the liquid receiving tank 280 through the guide channel 153 of the optical module side protective cover 150.

[0230] Furthermore, the cabinet 200 also includes a drain pipe 400, which extends vertically. Liquid receiving tanks 280 located outside the outer casing 240 of each device body 20 can communicate with the drain pipe 400 to drain the liquid working fluid within each tank downwards. Specifically, please refer to Figure 43, which is a schematic diagram of an assembly relationship between the liquid receiving tanks and drain pipes provided in this embodiment. The liquid receiving tanks 280 and drain pipes 400 are connected via compatible quick-connect couplings 290. When the electronic device 100 is plugged in or unplugged, the compatible quick-connect couplings between the liquid receiving tanks 280 and drain pipes 400 can be plugged in and unplugged simultaneously, facilitating assembly and maintenance.

[0231] To quickly drain the liquid working fluid from the liquid receiving tank 280, two drain pipes 400 can be configured. As shown in Figures 41 and 42, the two drain pipes 400 are located on both sides of the cabinet 200 in the width direction of the cabinet 200, and can be connected to both sides of each liquid receiving tank 280, so as to realize the rapid drainage of the liquid accumulated in the liquid receiving tank 280 and effectively avoid leakage from affecting the normal performance of the lower optical module.

[0232] Furthermore, a drip tray 500 is also installed inside the cabinet 200. This drip tray 500 is located below the drain pipe 400, and in the horizontal projection plane, the projection of the bottom drain outlet of the drain pipe 400 is within the projection of the drip tray 500. In this way, the cabinet has a leakage collection function, facilitating on-site management. For example, but not limited to, the drip tray 500 is located at the bottom of the cabinet 200.

[0233] In the aforementioned rack configuration, the optical modules 10 are arranged in rows horizontally. In other rack architectures, the optical modules 10 can also be arranged in rows vertically. Please refer to Figures 44 and 45, where Figure 44 is a front view of another rack provided in an embodiment of this application, and Figure 45 is a schematic diagram of another manifold layout provided in an embodiment of this application. This manifold layout is applicable to the rack architecture shown in Figure 44. To clearly illustrate the differences and connections between this embodiment and the aforementioned embodiments, components or structures with the same functions are indicated by the same reference numerals in the figures.

[0234] Compared to the cabinet described in Figure 41, the difference in this implementation is that the optical modules 10 are arranged in a vertical row. Correspondingly, multiple sets of first manifold groups 260 are arranged to extend vertically, and second manifold groups 270 are arranged to extend horizontally. The second liquid supply manifold of the second manifold group 270 is connected to each of the first liquid supply manifolds, and the second liquid return manifold of the second manifold group 270 is connected to each of the first liquid return manifolds.

[0235] The specific implementation of other functional components can be consistent with the implementation method of the aforementioned embodiments. Further details will not be provided here.

[0236] To prevent leakage at the docking point from affecting the internal components of the device, the optical module can be installed at an angle in the actual implementation.

[0237] Please refer to Figures 46 and 47, where Figure 46 is a side view of another electronic device provided in an embodiment of this application, and Figure 47 is a front view of the electronic device shown in Figure 46. To clearly illustrate the differences and connections between this embodiment and the foregoing embodiments, components or structures with the same functions are indicated by the same reference numerals in the figures.

[0238] In this embodiment, the electronic device 100 includes multiple rows of horizontally arranged optical modules 10. The optical cage 210 on the side of the device body 20 is inclined, and the inner end of the optical cage 210 is higher than its outer end. In this way, the inclined arrangement of the optical modules 10 inserted into the optical cage 210 can prevent liquid leakage from flowing into the device at the joint where the optical modules 10 are connected to the device body, and can minimize the impact of possible leakage.

[0239] Please refer to Figures 48 and 49, where Figure 48 is a side view of another electronic device provided in an embodiment of this application, and Figure 49 is a front view of the electronic device shown in Figure 48. To clearly illustrate the differences and connections between this embodiment and the foregoing embodiments, components or structures with the same functions are indicated by the same reference numerals in the figures.

[0240] In this embodiment, the electronic device 100 includes multiple rows of vertically arranged optical modules 10, and the optical cage 210 on the side of the device body 20 is inclined, with the inner end of the optical cage 210 higher than its outer end. Similarly, this can prevent liquid leakage into the device from the joint between the optical module 10 and the device body.

[0241] The specific implementation of other functional components can be consistent with the implementation method of the aforementioned embodiments. Further details will not be provided here.

[0242] The optical modules described in the foregoing embodiments all have protective covers to prevent liquid spillage. In other specific implementations, the protective cover can be placed on the side of the device body. Please refer to Figures 50 and 51, where Figure 50 is a simplified structural diagram of another optical module provided in an embodiment of this application, and Figure 51 is a side view of another electronic device provided in an embodiment of this application. To clearly illustrate the differences and connections between this embodiment and the foregoing embodiments, the same functional components or structures are indicated by the same reference numerals in the figures.

[0243] As shown in Figure 50, the optical module 10 provided in this embodiment is not equipped with a protective cover. The other functional configurations of the optical module 10 can be consistent with the aforementioned optical module embodiment. Further details are omitted here.

[0244] As shown in Figure 51, a protective cover 30 is fixedly installed on the outside of the device housing 240 of the electronic device 100. The second connector 250 is located inside the protective cover 30. The first wall surface 301 opposite to the docking interface of the protective cover 30 and the second connector 250 has a first passage 3011. The first manifold group 260, which is equipped with the paired second connectors 250, is located inside the device housing 240.

[0245] The first access port 3011 is positioned opposite the second connector 250 in the insertion / removal direction, and thus simultaneously aligns with the mating interface of the first connector 140 on the optical module side. Therefore, when inserting the optical module, the first access port 3011 of the protective cover 30 can be fitted over the first connector 140, with the mating position of the first connector 140 and the second connector 250 located inside the protective cover 30. In the event of abnormal leakage at the mating position, the protective cover 30, fixed to the housing 130, can shield the leak, preventing splashing from affecting the normal function of the optical module.

[0246] In other possible implementations, the first manifold assembly 260 may also be fixedly disposed outside the device housing 240, as shown in Figure 52, which is a side view of another electronic device provided in an embodiment of this application. Specific implementations of other functional components will not be elaborated here.

[0247] Corresponding to the two paired second connectors 250, two paired first passage ports 3011 can be configured on the protective cover 30. Please refer to Figures 53, 54 and 55 together, wherein Figure 53 is a schematic diagram of the assembly structure of another protective cover provided in the embodiment of this application, Figure 54 is a simplified structural diagram of the protective cover shown in Figure 53, and Figure 55 is a GG cross-sectional view in Figure 54.

[0248] As shown in Figure 53, the protective cover 30 located on the main body of the device is correspondingly arranged with the optical module 10. In the insertion / removal direction X, two first access ports 3011 and two second connectors 250 are arranged opposite each other. "Relative arrangement" here means that the two first access ports 3011 and two second connectors 250 are arranged in a one-to-one correspondence, including the case where the first access ports 3011 and second connectors 250 are completely aligned in the insertion / removal direction X, and also the case where the first access ports 3011 and second connectors 250 are slightly offset within a tolerance range in the insertion / removal direction X. During the insertion and removal of the optical module, it is acceptable as long as the first connector 140 on the optical module 10 side smoothly passes through the corresponding first access port 301 and reliably connects with the second connector 250. This application does not limit the scope of the embodiment.

[0249] Of course, in other possible implementations, the first access port 3011 on the protective cover 30 can also be set to one. In contrast, the implementation method of configuring two first access ports 3011 and corresponding one-to-one with the second connector 250 can reasonably control the possibility of liquid leakage and splashing.

[0250] Additionally, the protective cover 30 may also include a second wall surface 302 opposite to the equipment housing 240, to similarly prevent liquid splashing from the opposite side. Referring to Figures 53 and 54, a second access port 3021 is provided on the second wall surface 302 of the protective cover 30, for the mating interface side of the second connector 250 to extend into the protective cover 30. Similarly, corresponding to the paired second connectors 250, there may also be two second access ports 3021. This application does not limit the embodiments.

[0251] Furthermore, a guide port 3031 is provided on the bottom wall 303 of the protective cover 30 to discharge the liquid working medium inside the cover.

[0252] Optionally, in a specific implementation, the bottom of the protective cover 30 may be provided with an overflow groove 304 that runs vertically through it. This overflow groove 304 is connected to the guide port 3031, and the projection of the overflow groove 304 in the extended plane of the panel is located next to the projection of the optical cage, so as to avoid affecting the insertion and removal operation of the optical module 10. In this way, when a leakage failure occurs at the docking position of the first connector 140 and the second connector 250, the leaked liquid working fluid can fall into the liquid receiving tank 280 below, for example, but not limited to, flowing through the drain pipe 400 to the liquid receiving tray at the bottom of the cabinet (not shown in the figure).

[0253] As shown in the figure, there are two flow guide ports 3031 and two overflow channels 304, which are respectively set on both sides of the optical cage (optical module 10) to facilitate the rapid discharge of liquid working fluid.

[0254] It is understood that the number of the flow guide 3031 and overflow channel 304 can be configured according to the overall performance requirements of the product, and this application embodiment does not limit it.

[0255] To further mitigate the impact of liquid leakage and splashing, a fourth annular elastic element (not shown in the figure) can be provided around the outer periphery of the first access port 3011. This fourth annular elastic element can be embedded in the inner wall of the first access port 3011. After the optical module is inserted, the first connector 140 is inserted into the protective cover 30 via the first access port 3011, and the outer peripheral surface of the first connector 140 can radially abut against the fourth annular elastic element, creating a seal at the first access port 3011. In this way, in the event of abnormal liquid leakage at the docking position, liquid leakage and splashing can be controlled to the maximum extent.

[0256] In other specific implementations, the fourth annular elastic element can be a fourth annular sealing ring. In other possible embodiments, the fourth annular elastic element can also be a fourth annular sealing membrane, the outer edge of which is connected to the first wall surface of the protective cover 30 around the first passage. With this configuration, after the first connector 140 is inserted into the protective cover 30 via the first passage 3011, the inner edge region of the fourth annular sealing membrane can be expanded and deformed to cover the outer peripheral surface of the first connector 140, thus forming a reliable seal at the first passage 3011.

[0257] Based on the protective cover installed on the main body of the device, a leakage sensor can be further configured. As shown in Figures 51 and 55, the protective cover 30 also includes a leakage sensor 305, which is located below the second connector 250. This sensor 305 is used to acquire leakage information and can upload it to a monitoring unit, communicating with a monitoring unit (not shown in the figures) installed on the device node board, such as, but not limited to, a switch or server. In practical application scenarios, such as, but not limited to, server racks or data centers, the leakage information can be further uploaded to a monitoring system to trigger an alarm.

[0258] Meanwhile, for the protective cover 30 including the second wall surface 302, a wiring hole 3022 can be provided on the second wall surface 302 to thread the cable of the leakage sensor 305, thereby realizing the communication function of the leakage sensor 305. Regarding the leakage alarm implementation, the leakage sensor 305 can be configured to output a low-level signal when the leakage information indicates no leakage, and output a high-level signal when the leakage information indicates a leakage. In other words, when the leakage information indicates a leakage, an alarm signal is issued through the monitoring unit.

[0259] The leak sensor 305 can employ a leak detection membrane, which can be applied to the bottom wall 303 of the protective cover 30. The current leak amount is characterized by the area of ​​the wetted region detected by the leak detection membrane. This enables a more refined leak alarm method, facilitating maintenance personnel to schedule repairs and maintenance based on the actual leak situation.

[0260] The protective cover 30 described in Figure 53 above is configured in a one-to-one correspondence with the optical cage, that is, in a one-to-one correspondence with the optical module 10. In other possible implementations, the protective cover 30 located on the main body of the device can also be configured in a corresponding manner with multiple optical cages arranged in a row (not shown in the figure). In other words, one protective cover can be configured in a corresponding manner with at least two optical cages to jointly realize leakage management and control of multiple optical modules. The specific selection can be made according to the overall product design requirements, and this application embodiment does not limit it.

[0261] In other specific implementations, a protective cover to prevent liquid splashing can also be installed on the side of the cabinet. Please refer to Figure 56, which is a top view of another cabinet provided in an embodiment of this application. To clearly illustrate the differences and connections between this embodiment and the foregoing embodiments, components or structures with the same function are shown with the same reference numerals in the figure.

[0262] In this embodiment, the cabinet 1000 includes a protective cover 600 fixed to the outside of the cabinet body 200.

[0263] The second connector 250 is located inside the protective cover 600. The wall surface of the protective cover 600 opposite the mating interface of the second connector 250 has a passage 601. This passage 601 is positioned opposite the second connector 250 in the insertion / removal direction, and also opposite the mating interface of the first connector 140 on the optical module side. Thus, when inserting the optical module, the passage 601 of the protective cover 600 is located outside the first connector 140, and the mating position of the first connector 140 and the second connector 250 is located inside the protective cover 600. In the event of abnormal leakage at the mating position, the leakage can be covered by the protective cover 600 fixed to the cabinet 200, preventing leakage splashes from affecting the normal function of the optical module.

[0264] In specific implementations, the protective cover 600 and the cabinet 200 can be connected in different ways, such as, but not limited to, being fixed to the cabinet 200 by the connector 700 shown in Figure 56. The specific connection can be determined according to the overall design requirements of the cabinet, and this application embodiment does not limit it.

[0265] To further improve the assembly processability of the protective cover 600, the structural form of the through-port 601 can be further optimized. Please refer to Figures 57 and 58, where Figure 57 is a structural schematic diagram of another protective cover provided by an embodiment of this application, and Figure 58 is a schematic diagram of an assembly relationship of the protective cover shown in Figure 57. In order to clearly show the differences and connections between this embodiment and the foregoing embodiments, the same functional components or structures are indicated by the same reference numerals in the figures.

[0266] As shown in Figure 57, the passage 601 of the protective cover 600 can be a downwardly extending through groove, the opening of which is located at the bottom edge of the wall of the protective cover 600. The protective cover 600 has two passages 601, each corresponding to one of the two paired second connectors 250.

[0267] With this configuration, when assembling the optical module 10, the protective cover 600 can be removed from the cabinet 200 first, making it convenient to perform the insertion and removal operations of the optical module. That is to say, after each optical module 10 is inserted into place, as shown in Figure 58, the through port 601 of the protective cover 600 is aligned with the first connector 140 of the corresponding optical module 10, and then the protective cover 600 is assembled into place from top to bottom.

[0268] Furthermore, the bottom of the protective cover 600 can also be provided with an overflow channel 602 that runs vertically through it, and the overflow channel 602 is connected to the guide port on the bottom wall. As shown in the figure, there can be two overflow channels 602, which are arranged one-to-one on both sides of the optical cage (optical module 10) to facilitate the rapid discharge of liquid working fluid. In this way, when a leakage failure occurs at the docking position of the first connector 140 and the second connector 250, the leaked liquid working fluid can fall into the liquid receiving tank 280 below, for example, but not limited to, flowing through the drain pipe 400 to the liquid receiving tray at the bottom of the cabinet (not shown in the figure).

[0269] As shown in Figure 57, based on the protective cover installed on the side of the cabinet, the protective cover 600 also includes a leakage sensor 603. In a specific implementation, the leakage sensor 603 is located below the second connector 250, used to acquire leakage information, and can upload the leakage information to the monitoring unit to trigger an alarm.

[0270] The specific implementation of other functional components can be consistent with the implementation methods described in the foregoing embodiments. Further details will not be provided here.

[0271] 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.

[0272] 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. An optical module for plugging and unplugging into a device body, characterized in that, The optical module includes a housing, a printed circuit board assembly, and an optical port connector. The optical port connector is located at the front end of the housing and is connected to the printed circuit board assembly. At least a portion of the printed circuit board assembly is located in the housing, and an electrical interface is provided at the rear end of the printed circuit board assembly. The housing includes a hollow cavity that can accommodate a liquid cooling medium, and two first connectors that are respectively connected to the inlet and outlet of the hollow cavity. The mating interface of the first connector is arranged facing the rear end of the optical module and is used to adapt and connect with the second connector on the main body of the device. The first connector is elastically connected to the hollow cavity side. The front of the housing is provided with a first mounting base, and each of the first connectors is respectively mounted on the first mounting base. There is a first constraint and a second constraint between the first connector and the first mounting base. The first constraint is configured to limit the amount of movement of the first connector relative to the first mounting base in the insertion and removal direction, and the second constraint is configured to limit the translation vector of the first connector relative to the first mounting base in a plane perpendicular to the insertion and removal direction.

2. The optical module according to claim 1, characterized in that, The first mounting base is configured as one, and the outer peripheral surface of the first connector has two protruding limiting portions that are spaced apart; The two protruding limiting portions are located on both sides of the first mounting base, and the first constraint is formed between the two protruding limiting portions and the two side surfaces of the first mounting base; The first joint between the two protruding limiting parts is a through section, the cross-sectional dimension of which is smaller than the through hole of the first mounting base, and the second constraint is formed between the through section and the through hole.

3. The optical module according to claim 1, characterized in that, Two first mounting bases are provided, and the outer peripheral surface of the first connector has an outwardly protruding limiting part; The protruding limiting portion is located between the two first mounting seats, and the first constraint is formed between the opposing surfaces of the two first mounting seats and the protruding limiting portion; The first connectors on both sides of the protruding limiting part are insertion sections. The cross-sectional dimensions of the insertion sections are smaller than the dimensions of the insertion holes of the first mounting base on the corresponding side. The second constraint is formed between the insertion sections and the insertion holes.

4. The optical module according to any one of claims 1 to 3, characterized in that, The two first connectors are connected to the inlet and outlet of the hollow cavity respectively through flexible tubes to form an elastic connection between the first connectors and the hollow cavity side.

5. The optical module according to any one of claims 1 to 3, characterized in that, The front end of the housing has an outward protrusion, and the input port and the output port are disposed on the outward protrusion. Each of the first connectors is connected to the outward protrusion on the outer periphery of the input port and the output port through a first annular elastic element to form an elastic connection between the first connector and the hollow cavity side.

6. The optical module according to claim 5, characterized in that, The first annular elastic element is a first annular sealing film. The inner edge of the first annular sealing film is sealed to the outer peripheral surface of the first connector, and the outer edge of the first annular sealing film is sealed to the end face of the corresponding outer protrusion of the input port and the output port. Alternatively, the first annular elastic element may be a first annular sealing ring, the first connector may be inserted into the corresponding input port and the corresponding output port, and the first annular sealing ring may be nested between the outer peripheral surface of the first connector and the corresponding input port and the corresponding output port.

7. The optical module according to any one of claims 1 to 6, characterized in that, The optical module also includes a protective cover, which is fixedly mounted on the housing, and the first mounting base and the first connector are located inside the protective cover. The rear wall of the protective cover has a passage opening.

8. The optical module according to claim 7, characterized in that, The two ports are configured to be opposite to the two first connectors in the insertion / removal direction.

9. The optical module according to claim 8, characterized in that, A second annular elastic element is provided on the protective cover around the opening. The second annular elastic element is connected to the protective cover, and the inner edge of the second annular elastic element can press against the outer peripheral surface of the corresponding connector.

10. The optical module according to claim 9, characterized in that, The second annular elastic element is a second annular sealing film, and the outer edge of the second annular sealing film is connected to the protective cover on the outer periphery of the passage opening; Alternatively, the second annular elastic element may be a second annular sealing ring, which is embedded in the inner wall of the passage.

11. The optical module according to claims 7 to 10, characterized in that, A flow guide groove is provided at the front of the housing, the flow guide groove runs vertically through the housing, and the upper opening of the flow guide groove is located inside the protective cover.

12. The optical module according to claim 11, characterized in that, The flow guide grooves are configured as two, and are located on both sides of the housing respectively.

13. The optical module according to any one of claims 7 to 12, characterized in that, The optical module also includes a leakage sensor, which is located below the first connector and is used to acquire leakage information. The leakage sensor is communicatively connected to the printed circuit board assembly, and the leakage information can be uploaded to the monitoring unit on the device side through the printed circuit board assembly.

14. The optical module according to claim 13, characterized in that, The leakage sensor is configured to output a low-level signal when the leakage information indicates no leakage and a high-level signal when the leakage information indicates leakage.

15. The optical module according to claim 14, characterized in that, The leakage sensor is a leakage detection membrane.

16. The optical module according to claim 15, characterized in that, The leakage detection membrane is applied to the upper surface of the housing, or the leakage detection membrane is applied to the side wall of the protective cover.

17. The optical module according to any one of claims 1 to 16, characterized in that, The optical modules are configured as multiple units arranged in sequence, and the hollow cavities inside the housings of the multiple optical modules are interconnected.

18. The optical module according to claim 17, characterized in that, The interconnected hollow cavities are located on the top wall of each of the housings, or the interconnected hollow cavities are located on the bottom wall of each of the housings.

19. The optical module according to claim 17 or 18, characterized in that, In the arrangement direction of the plurality of optical modules, the two first connectors are located on both sides of the plurality of optical modules, or the two first connectors are located on the same side of the plurality of optical modules.

20. The optical module according to claims 1 to 19, characterized in that, The two first joints are staggered in the height direction.

21. An electronic device, characterized in that, The electronic device includes a device body and an optical module. The optical module adopts the optical module of any one of claims 1 to 20. The device body includes a shell, a single board and an optical cage. The optical cage is connected to the single board, and the insertion port of the optical cage is exposed outside the shell. An electrical connector is provided on the single board, and a second connector is provided on the shell. The optical module is pluggable to the optical cage so that the electrical interface of the optical module is adapted to the electrical connector, and the two first connectors of the optical module are respectively adapted to the corresponding second connectors on the housing.

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