Optical module assembly

Abstract

The utility model discloses an optical module assembly, and relates to the technical field of optical communication. The optical module assembly comprises an optical module, the optical module comprises a shell, an electrical interface and an optical interface, the electrical interface and the optical interface are oppositely arranged in the lengthwise direction of the shell, and the optical module is provided with a clamping assembly; the optical cage is provided with an optical module insertion port and an airflow port which are oppositely arranged, the optical module insertion port is communicated with the airflow port, the optical module is contained in the optical cage, the optical cage is provided with a tongue piece, and the clamping assembly is matched with the tongue piece to achieve locking and unlocking between the optical module and the optical cage; and the heat dissipation device is arranged at the position, close to the airflow opening, in the optical cage, the heat dissipation device is arranged close to the electrical interface, and the heat dissipation device generates airflow flowing through the optical module so as to carry out heat dissipation treatment on the optical module. According to the optical module assembly, the optical module and the heat dissipation device are integrated at the same time, so that the optical module assembly can dissipate heat independently without the help of an external fan, and the independent usability of the optical module is improved.

Description

Technical Field

[0001] The present application relates to the field of optical communication technology, and in particular to an optical module assembly. Background Art

[0002] In the communications industry, optical modules are an indispensable component. Their function is to convert electrical signals into optical signals at the transmitting end of the optical module. After being transmitted through optical fibers, the receiving end converts the optical signals into electrical signals. As the speed of optical modules increases, the power consumption of their chips increases, and the resulting heat generation increases. Heat dissipation is essential for optical modules. Poor heat dissipation will directly lead to the degradation of optical module performance and shortened lifespan, and in severe cases may even lead to direct scrapping. Therefore, thermal design is an essential component of optical module structural design.

[0003] The volume of optical modules is usually small, so there are certain difficulties in their heat dissipation. Most of the existing optical modules do not have the function of automatic circulation heat dissipation. The more common method of heat dissipation of optical modules currently used is mainly through passive cooling by wind power provided by the outside world. However, due to the compact space of the module structure in the communication equipment, this cooling method cannot solve the local hot spots generated by high-power devices well, which will lead to low heat dissipation efficiency and reduce the service life of the product. In summary, in the existing optical communication technology, there are technical problems such as the inability to discharge heat quickly and low heat dissipation efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide an optical module assembly to solve the technical problem of low heat dissipation efficiency of the optical module.

[0005] To achieve the above-mentioned purpose, the utility model provides an optical module assembly, comprising: an optical module, the optical module comprising a shell, an electrical interface and an optical interface relatively arranged along the longitudinal direction of the shell, the optical module being provided with a snap-on assembly; an optical cage, the optical cage having an optical module insertion port and an airflow port relatively arranged, the optical module insertion port and the airflow port being interconnected, the optical module being accommodated inside the optical cage, the optical cage being provided with a tongue piece, the snap-on assembly cooperating with the tongue piece to achieve locking and unlocking between the optical module and the optical cage; and a heat dissipation device, the heat dissipation device being arranged at a position inside the optical cage close to the airflow port, and the heat dissipation device being located close to the electrical interface, the heat dissipation device generating an airflow flowing through the optical module to perform heat dissipation treatment on the optical module.

[0006] In some embodiments, the shell has a heat dissipation channel extending along the longitudinal direction of the shell, and the heat dissipation channel has a first heat dissipation port and a second heat dissipation port that are interconnected, the first heat dissipation port is adjacent to the electrical interface, and the second heat dissipation port is adjacent to the optical interface; wherein the heat dissipation device is arranged opposite to the first heat dissipation port, and the heat dissipation device is used to generate airflow, and the generated airflow flows through the heat dissipation channel to dissipate heat for the optical module.

[0007] In some embodiments, the shell includes a first sub-shell and a second sub-shell, the first sub-shell is detachably covered on the second sub-shell, the first sub-shell and the second sub-shell form a accommodating cavity, and the accommodating cavity is used to accommodate optical components and electronic components of the optical module; the first sub-shell includes a first plate, a second plate and a connecting plate, the first plate and the second plate are spaced apart, and the connecting plate is connected to the first plate and the second plate to enclose the heat dissipation channel.

[0008] In some embodiments, the optical module assembly further includes a plurality of heat sinks, and the plurality of heat sinks are spaced apart in the heat dissipation channel to divide the heat dissipation channel into a plurality of sub-channels.

[0009] In some embodiments, the optical cage includes a first sub-optical cage and a second sub-optical cage disposed along the longitudinal direction of the housing and connected to each other, the optical module is accommodated in the first sub-optical cage, and the heat sink is accommodated in the second sub-optical cage.

[0010] In some embodiments, the first sub-light cage has a third heat dissipation opening in the longitudinal direction of the shell, and the first sub-light cage has a fourth heat dissipation opening perpendicular to the longitudinal direction of the shell, and the third heat dissipation opening and the fourth heat dissipation opening are interconnected through the heat dissipation channel; the second sub-light cage includes a fixing plate, and the heat dissipation device is arranged on the fixing plate and located at the air flow opening.

[0011] In some embodiments, the heat dissipation device includes a fan, which is fixed to the fixing plate and located at the air flow port, and the fan and the optical module are in a one-to-one correspondence.

[0012] In some embodiments, the light cage is provided with an air flow opening arranged opposite to the electrical interface at one end of the shell in the longitudinal direction, and the heat dissipation device is arranged at the air flow opening.

[0013] In some embodiments, the heat dissipation device includes a fan, and the fan is installed at the electrical interface and close to the air flow port.

[0014] In some embodiments, the heat dissipation device further includes a control element and a circuit board, wherein the control element is communicatively connected to the circuit board, and the control element is used to monitor the ambient temperature and adaptively adjust the rotation speed of the fan.

[0015] The technical effect of the utility model is to provide an optical module assembly. The heat sink is installed inside the optical cage and is located on a side close to the electrical interface, so that the optical module assembly integrates the optical module and the heat sink at the same time, so that the optical module assembly can dissipate heat independently without the help of an external fan, thereby improving the independent usability of the optical module. Secondly, the optical module assembly has a heat dissipation channel, and the heat sink is arranged relative to the first heat dissipation port of the heat dissipation channel, so that the airflow generated by the heat sink can export the heat through the heat dissipation channel and guide it to the outside of the optical module assembly to dissipate. In this way, the airflow generated by the heat sink flows in a smaller space in the heat dissipation channel without loss, so that the independent heat dissipation effect of the optical module assembly is better. Furthermore, the optical module assembly has an independent heat dissipation function, which can produce an independent heat dissipation effect at each port of the switch, which means that each port can produce independent heat dissipation for its own heat without being affected by other ports. Therefore, through independent control, each port of the switch can maintain a suitable temperature, reducing the risk of failure that may be caused by overheating of a certain port. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the partial decomposition structure of the optical module assembly provided in Example 1 of the present application.

[0018] Figure 2 The schematic diagram of a partial decomposition structure of the optical module assembly provided in the first embodiment of the present application mainly reflects the structure that the optical cage includes a first sub-optical cage and a second sub-optical cage.

[0019] Figure 3 Schematic diagram of the structure of the optical module provided in Example 1 of the present application Figure 1 , which mainly reflects the structure of the first heat dissipation outlet.

[0020] Figure 4 Schematic diagram of the structure of the optical module provided in Example 1 of the present application Figure 2 , which mainly reflects the structure of the second heat dissipation outlet.

[0021] Figure 5 for Figure 3 The cross-sectional view of the optical module provided in the first direction mainly shows that the first sub-shell and the second sub-shell form an accommodating cavity.

[0022] Figure 6 This is a schematic diagram of the structure of the first sub-light cage provided in Example 1 of the present application.

[0023] Figure 7 The overall structural diagram of the optical module assembly is provided for the first embodiment of the present application, which mainly reflects that the optical module and the heat dissipation device are installed in the optical cage.

[0024] Figure 8 This is a schematic diagram of the partial decomposition structure of the optical module assembly provided in Example 2 of the present application.

[0025] Fig. 9 This is a schematic diagram of the structure of the light cage provided in Example 2 of the present application.

[0026] The components of the attached drawings are identified as follows:

[0027] 100-optical module assembly; X-first direction; Y-second direction; Z-third direction

[0028] 1- optical module; 11- housing; 110- first sub-housing; 1110- accommodating cavity;

[0029] 1101-first board; 1102-second board; 1103-connecting board;

[0030] 120- a second sub-housing;

[0031] 12- heat sink;

[0032] 101- heat dissipation channel; 1011- sub-channel

[0033] 111 - first heat dissipation port; 112 - second heat dissipation port; 113 - third heat dissipation port; 114 - fourth heat dissipation port;

[0034] 10-electrical interface; 20-optical interface;

[0035] 2-light cage; 21-first sub-light cage; 22-second sub-light cage;

[0036] 221-top plate; 222-side plate; 223-fixed plate;

[0037] 201-first cover plate; 202-second cover plate; 203-third cover plate; 210-accommodation space;

[0038] 2011-opening; 301-optical module insertion port; 302-air flow port; 3-heat dissipation device;

[0039] 41-clip assembly; 42-tongue. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application and are not used to limit the present application. In the present application, unless otherwise stated, the directional words used, such as "up", "down", "left", and "right", generally refer to the up, down, left, and right of the device in actual use or working state, specifically the drawing direction in the accompanying drawings.

[0041] In this application, unless otherwise clearly specified and limited, the terms "connected", "connected", "stacked" and the like should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0042] In order to solve the technical problem that the heat dissipation device of the optical module assembly in the prior art cannot achieve independent heat dissipation, an embodiment of the present application provides an optical module assembly. The heat dissipation device is installed inside the optical cage and is located on the side close to the electrical interface, so that the optical module assembly integrates the optical module and the heat dissipation device at the same time, so that the optical module assembly can independently dissipate heat without the help of an external fan, thereby improving the independent usability of the optical module. The optical module assembly is installed in a switch, and the switch is used to provide more connection ports in the sub-network to connect more communication devices. The optical module assembly serves as a carrier between the switch and the communication device. Its transmitting end converts the electrical signal into an optical signal. After being transmitted through the optical fiber, the receiving end converts the optical signal into an electrical signal, thereby being more efficient and safer than traditional transceivers in transmitting data and signals.

[0043] The following uses the optical module assembly capable of independent heat dissipation in a switch as an example to illustrate the structure of the optical module capable of independent heat dissipation in the present application. This embodiment is only used as an example and does not limit the technical scope of the present application. It can be understood that in other embodiments, the optical module assembly of the present application is not limited to being used in a switch, but can also be used in other devices that require the optical module assembly, which is not limited here.

[0044] Please also read Figures 1 to 7 , Figure 1 This is a schematic diagram of the partial decomposition structure of the optical module assembly provided in Example 1 of the present application. Figure 2The schematic diagram of a partial decomposition structure of the optical module assembly provided in the first embodiment of the present application mainly reflects the structure that the optical cage includes a first sub-optical cage and a second sub-optical cage. Figure 3 This is a schematic diagram of the structure of the optical module provided in the first embodiment of the present application, which mainly reflects the structure of the first heat dissipation port. Figure 4 This is a schematic diagram of the structure of the optical module provided in the first embodiment of the present application, which mainly reflects the structure of the second heat dissipation port. Figure 5 for Figure 3 The cross-sectional view of the optical module provided in the first direction mainly shows that the first sub-shell and the second sub-shell form an accommodating cavity. Figure 6 This is a schematic diagram of the structure of the first sub-light cage provided in Example 1 of the present application. Figure 7 The overall structural diagram of the optical module assembly is provided for the first embodiment of the present application, which mainly reflects that the optical module and the heat dissipation device are installed in the optical cage.

[0045] like Figure 1 or Figure 2 As shown, a first direction X, a second direction Y and a third direction Z that intersect perpendicularly are set. Among them, the first direction X can be the longitudinal direction (i.e., the length direction) of the optical module assembly 100, the second direction Y can be the height direction of the optical module assembly 100, and the third direction Z can be the width direction of the optical module assembly 100. The optical module assembly 100 includes an optical module 1, an optical cage 2 and a heat dissipation device 3. The optical module 1 includes a housing 11 and optical components and electronic components located inside the housing 11. The housing 11 has an electrical interface 10 and an optical interface 20 at opposite ends along the first direction X, respectively. A snap-on assembly 41 is provided on the side wall of the optical module 1. When the optical module 1 and the optical cage 2 are assembled together, the optical cage 2 has an optical module insertion port 301 and an airflow port 302 that are arranged oppositely, and the optical module insertion port 301 and the airflow port 302 are interlinked, and the optical module 1 is at least partially accommodated inside the optical cage 2. A tongue piece 42 is provided on the side wall of the optical cage 2, and the snap-in assembly 41 cooperates with the tongue piece 42 to achieve locking and unlocking between the optical module 1 and the optical cage 2. The heat sink 3 can be installed in a detachable manner at a position near the airflow port 302 inside the optical cage 2, and the heat sink 3 is arranged close to the electrical interface 10. The heat sink 3 generates an airflow flowing through the optical module 1 to dissipate heat for the optical module 1. Therefore, the optical module assembly 100 can dissipate heat independently without the aid of an external fan, thereby increasing the independent usability of the optical module 1.

[0046] Specifically, Figure 2 As shown, the housing 11 has a heat dissipation channel 101 extending along a first direction X. The heat dissipation channel 101 has first heat dissipation openings 111 ( Figure 1 as shown) and the second heat dissipation outlet 112 ( Figure 2 The first heat dissipation opening 111 is disposed adjacent to the electrical interface 10 , and the second heat dissipation opening 112 is disposed adjacent to the optical interface 20 .

[0047] The heat sink 3 is arranged opposite to the first heat sink 111. When the heat sink 3 starts to generate the airflow required for heat dissipation, the airflow flows in the heat dissipation channel 101 and flows to the outside of the optical cage 2 through the first heat dissipation port 111 and the second heat dissipation port 112, so that the airflow generated by the heat sink 3 flows in a smaller space such as the heat dissipation channel 101 without loss, thereby making the independent heat dissipation effect of the optical module assembly 100 better.

[0048] like Figure 1 , Figure 2 and Figure 5 As shown, the housing 11 includes a first sub-housing 110 and a second sub-housing 120. The first sub-housing 110 is detachably covered on the second sub-housing 120. The first sub-housing 110 and the second sub-housing 120 are covered to form a receiving cavity 1110. The receiving cavity 1110 is used to receive the optical components and electronic components of the optical module 1. The snap-on assembly 41 can be arranged on the side wall of the second sub-housing 120.

[0049] like Figure 1 or Figure 2 As shown, the first sub-housing 110 includes a first plate 1101, a second plate 1102 and a connecting plate 1103. The first plate 1101 and the second plate 1102 are spaced apart in the second direction Y, and the connecting plate 1103 is connected to the side walls of the first plate 1101 and the second plate 1102 to enclose the heat dissipation channel 101.

[0050] In other embodiments, the structures of the first sub-housing 110 and the second sub-housing 120 can be interchanged, which is not particularly limited herein.

[0051] like Figure 3 , Figure 4 As shown, a plurality of heat sinks 12 are arranged in the heat dissipation channel 101 at intervals along the third direction Z to divide the heat dissipation channel 101 into a plurality of sub-channels 1011. Each sub-channel 1011 is provided with a first heat dissipation opening 111 and a second heat dissipation opening 112 at both ends in the first direction X. In other words, the number of the first heat dissipation openings 111 is multiple, and the number of the second heat dissipation openings 112 is multiple.

[0052] In this way, by providing a plurality of heat sinks 12 to form a plurality of mutually parallel sub-channels 1011 , when the airflow passes through the heat dissipation channel 101 , the heat dissipation area is larger and the heat dissipation effect is better.

[0053] like Figure 1 or Figure 2As shown, the optical cage 2 includes a first sub-optical cage 21 and a second sub-optical cage 22 arranged along a first direction X and connected to each other. The optical module 1 is accommodated in the first sub-optical cage 21, and the heat sink 3 is accommodated in the second sub-optical cage 22. The tongue 42 can be arranged on the side wall of the first sub-optical cage 21.

[0054] like Figure 1 , Figure 2 , Figure 4 and Figure 6 As shown, the first sub-optical cage 21 is provided with a third heat dissipation opening 113 in the first direction X, the third heat dissipation opening 113 is adjacent to the electrical interface 10, and the third heat dissipation opening 113 is located between the electrical interface 10 and the air flow opening 302. The first sub-optical cage 21 is provided with a fourth heat dissipation opening 114 in the second direction Y, and the fourth heat dissipation opening 114 is located at one side of the electrical interface 10. The first heat dissipation opening 111, the second heat dissipation opening 112, the third heat dissipation opening 113, and the fourth heat dissipation opening 114 are interconnected.

[0055] Thus, when the heat dissipation device 3 starts to generate the airflow required for heat dissipation, the airflow in the heat dissipation channel 101 flows through the first heat dissipation port 111, the second heat dissipation port 112, the third heat dissipation port 113, and the fourth heat dissipation port 114 to the outside of the optical cage 2 and is dissipated. In this way, the airflow generated by the heat dissipation device 3 flows in a smaller space of the heat dissipation channel 101 without loss, so that the independent heat dissipation effect of the optical module assembly 100 is better.

[0056] like Figure 1 or Figure 2 As shown, the second sub-optical cage 22 includes a top plate 221, a side plate 222 and a fixing plate 223. The top plate 221 is connected to the top edges of the two side plates 222, and the fixing plate 223 is connected to the sides of the two side plates 222 away from the optical module 1 in the first direction X. The fixing plate 223 is provided with an air flow opening 302 arranged opposite to the electrical interface 10, and the heat dissipation device 3 is detachably mounted on the fixing plate 223 and is located at the air flow opening 302.

[0057] The heat dissipation device 3 includes a fan, which is fixed on the fixing plate 223 and located at the air flow port 302, and the fan and the optical module are in a one-to-one correspondence. The fan is an axial flow fan. An axial flow fan is a fan that generates airflow by the rotation of an axis. The fan compresses and accelerates the air along the axis, increases the airflow speed, and forms a larger air volume. The airflow generated by the fan can export the heat through the heat dissipation channel 101 and guide it to the outside of the optical module assembly 100 for dissipation. In this way, the airflow generated by the heat dissipation device 3 flows in a smaller space in the heat dissipation channel 101 without loss, so that the independent heat dissipation effect of the optical module assembly 100 is better.

[0058] The heat dissipation device 3 also includes a control element (not shown) and a circuit board (not shown), wherein the control element is communicatively connected to the circuit board. The control element is used to monitor the ambient temperature and adaptively adjust the speed of the fan, thereby maintaining a relatively constant operating temperature of the optical module.

[0059] Please also read Figures 8 to 9 , Figure 8 This is a schematic diagram of the partial decomposition structure of the optical module assembly provided in Example 2 of the present application. Fig. 9 This is a schematic diagram of the structure of the light cage provided in Example 2 of the present application.

[0060] In this embodiment, the light cage 2 has an airflow opening 302 disposed opposite to the electrical interface 10 at one end in the first direction X. The airflow opening 302 is disposed adjacent to the electrical interface 10. The heat dissipation device 3 is disposed at the airflow opening 302.

[0061] Specifically, the light cage 2 includes a first cover plate 201, a second cover plate 202, and two third cover plates 203. The first cover plate 201 and the second cover plate 202 are spaced apart in the second direction Y. The two third cover plates 203 are respectively connected to the side walls of the first cover plate 201 and the second cover plate 202 in the third direction Z to enclose a containing space 210. The light cage 2 has an opening 2011, which is opened on the first cover plate 201 and is used to achieve communication between the electrical interface 10 and other components.

[0062] The optical module 1 is accommodated in the accommodation space 210. The heat sink 3 is accommodated in the accommodation space 210 and is adjacent to the airflow port 302. When the heat sink 3 is started to generate the airflow required for heat dissipation, the airflow flows in the heat dissipation channel 101 and flows through the second heat dissipation port 112, the first heat dissipation port 111 and the airflow port 302 to the outside of the optical cage 2 and is dissipated. In this way, the airflow generated by the heat sink 3 flows in a smaller space of the heat dissipation channel 101 without loss, so that the independent heat dissipation effect of the optical module assembly 100 is better.

[0063] The heat dissipation device 3 includes a fan, which is installed at the electrical interface 10 and close to the airflow port 302. The fan is a centrifugal fan. When the centrifugal fan is turned on, it mainly generates centrifugal force, which can balance the center of gravity of the fan itself, so that the fan will not shake when rotating at high speed, thereby maintaining stability. The fan will generate airflow to export heat through the heat dissipation channel 101.

[0064] The optical module assembly 100 provided in the embodiment of the present application integrates a heat dissipation device 3 in itself, so that it has the function of independent heat dissipation. The heat inside the optical module 1 is exported through the heat dissipation channel 101 by the heat dissipation device 3, and is guided to the outside of the optical module assembly 100 for heat dissipation. Furthermore, the optical module assembly 100 has an independent heat dissipation function, which can produce an independent heat dissipation effect at each port of the switch, which means that each port can independently dissipate its own heat without being affected by other ports. Therefore, through independent control, each port of the switch can maintain a suitable temperature, reducing the risk of failure that may be caused by overheating of a port.

[0065] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0066] The above is a detailed introduction to an optical module assembly provided in an embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and core idea of ​​the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. An optical module assembly, characterized in that: include: An optical module, the optical module comprising a housing, an electrical interface and an optical interface arranged opposite to each other along the longitudinal direction of the housing, and a snap-on assembly being provided on the housing; A light cage, wherein the light cage has a light module insertion port and an air flow port that are arranged opposite to each other, the light module insertion port and the air flow port are connected, the light module is at least partially accommodated in the light cage, the light cage is provided with a tongue piece, and the clamping assembly cooperates with the tongue piece to realize locking and unlocking between the light module and the light cage; and A heat dissipation device is arranged inside the optical cage near the airflow port, and the heat dissipation device is arranged near the electrical interface, and the heat dissipation device generates an airflow flowing through the optical module to dissipate heat for the optical module.

2. The optical module assembly according to claim 1, characterized in that: The housing has a heat dissipation channel extending along the longitudinal direction of the housing, the heat dissipation channel has a first heat dissipation port and a second heat dissipation port that are interconnected, the first heat dissipation port is adjacent to the electrical interface, and the second heat dissipation port is adjacent to the optical interface; The heat dissipation device is arranged opposite to the first heat dissipation port, and is used to generate airflow, and the generated airflow flows through the heat dissipation channel to dissipate heat for the optical module.

3. The optical module assembly according to claim 2, characterized in that: The housing comprises a first sub-housing and a second sub-housing, the first sub-housing is detachably covered on the second sub-housing, the first sub-housing and the second sub-housing form a receiving cavity, and the receiving cavity is used to receive the optical components and the electronic components of the optical module; The first sub-housing includes a first plate, a second plate and a connecting plate. The first plate and the second plate are spaced apart from each other. The connecting plate connects the first plate and the second plate to enclose the heat dissipation channel.

4. The optical module assembly according to claim 3, characterized in that: Also includes: A plurality of heat sinks are arranged at intervals in the heat dissipation channel to divide the heat dissipation channel into a plurality of sub-channels.

5. The optical module assembly according to claim 2, characterized in that: The optical cage comprises a first sub-optical cage and a second sub-optical cage which are arranged along the longitudinal direction of the housing and connected to each other. The optical module is accommodated in the first sub-optical cage, and the heat dissipation device is accommodated in the second sub-optical cage.

6. The optical module assembly according to claim 5, characterized in that: The first sub-light cage is provided with a third heat dissipation opening in the longitudinal direction of the shell, and the first sub-light cage is provided with a fourth heat dissipation opening perpendicular to the longitudinal direction of the shell, and the third heat dissipation opening and the fourth heat dissipation opening are connected to each other through the heat dissipation channel; The second sub-light cage includes a fixing plate, and the heat dissipation device is arranged on the fixing plate and located at the air flow opening.

7. The optical module assembly according to claim 6, characterized in that: The heat dissipation device comprises a fan, which is fixed on the fixing plate and located at the air flow opening, and the fan and the optical module are in a one-to-one correspondence.

8. The optical module assembly according to claim 1, characterized in that: The light cage is provided with an air flow opening arranged opposite to the electrical interface at one end of the shell in the longitudinal direction, and the heat dissipation device is arranged at the air flow opening.

9. The optical module assembly according to claim 8, characterized in that: The heat dissipation device comprises a fan, and the fan is installed at the electrical interface and close to the air flow port.

10. The optical module assembly according to claim 7 or 9, characterized in that: The heat dissipation device further includes a control element and a circuit board. The control element is communicatively connected to the circuit board and is used to monitor the ambient temperature and adaptively adjust the rotation speed of the fan.

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