Efficient optical module liquid cooling device

Abstract

The utility model relates to the technical field of optical module heat dissipation, and discloses a high-efficiency optical module liquid cooling device, which comprises a top plate, an optical module fixing seat and a heat dissipation assembly, a plurality of groups of pressing units are arranged on the top plate; the optical module fixing seat is arranged below the top plate; a plurality of groups of plugging cavities are formed in the optical module fixing seat; the heat dissipation assembly is arranged between the top plate and the optical module fixing seat; the heat dissipation assembly comprises a heat dissipation module, a heat dissipation bottom plate and a heat conduction layer; the heat dissipation module is arranged below the pressing unit; the heat dissipation bottom plate is arranged below the heat dissipation module; the heat conduction layer is arranged between the heat dissipation bottom plate and the insertion cavity. The heat dissipation pipe, the heat dissipation middle plate and the heat dissipation bottom plate in the heat dissipation module form an efficient liquid cooling circulation system from top to bottom, so that heat can be rapidly taken away and prevented from being accumulated in the heat dissipation assembly, meanwhile, the heat conduction layer is arranged and can directly make close contact with the optical module, an efficient heat conduction path is formed, and the heat dissipation efficiency is improved. And the heat dissipation efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the field of optical module heat dissipation technology, and in particular to a high-efficiency optical module liquid cooling device. Background Technology

[0002] Optical modules play a crucial role in the field of optical fiber communication, serving as key optoelectronic devices that realize photoelectric and electro-optical conversion during optical signal transmission. Located at the physical layer of the OSI model, and as one of the core components of an optical fiber communication system, it mainly consists of optoelectronic devices, functional circuits, and optical interfaces. Its core function is to achieve photoelectric and electro-optical signal conversion in optical fiber communication.

[0003] With continuous technological advancements, optical modules are becoming increasingly miniaturized, with their size gradually shrinking. To ensure their stability and reliability during operation, liquid cooling systems are typically used to dissipate heat from the optical modules.

[0004] Currently, most liquid cooling systems are designed with four or more optical modules grouped together for heat dissipation management. However, due to machining tolerances, there are differences in the height between each optical module and the cold plate after insertion into the interface. To address this issue, the industry commonly uses thermally conductive structures to fill the gap between the cold plate and the optical modules, ensuring tight contact. However, existing thermally conductive structures are often made of ordinary metal powder, conventional thermally conductive adhesives, or composite materials with low thermal conductivity. Their low thermal conductivity significantly hinders heat transfer, preventing the rapid transfer of heat generated by the optical modules to the cold plate. This results in heat accumulation within the thermally conductive structure and low heat dissipation efficiency.

[0005] Therefore, a new technical solution needs to be researched to address the above problems. Utility Model Content

[0006] In view of this, the present invention addresses the deficiencies of the existing technology, and its main objective is to provide a high-efficiency optical module liquid cooling device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A high-efficiency liquid cooling device for optical modules includes a top plate, an optical module mounting base, and a heat dissipation assembly. The top plate has multiple sets of clamping units for tight contact. The optical module mounting base is located below the top plate and contains multiple sets of insertion cavities for mounting the optical module. The number of clamping units is the same as the number of insertion cavities, and each set of clamping units corresponds one-to-one with each set of insertion cavities. The heat dissipation assembly is located between the top plate and the optical module mounting base, with the clamping units abutting against the top of the heat dissipation assembly and tightly fitting the bottom of the heat dissipation assembly to the top of the insertion cavity. The heat dissipation assembly is used for heat dissipation of the optical module. The heat dissipation assembly includes a heat dissipation module, a heat dissipation base plate, and a thermally conductive layer. The heat dissipation module is located below the clamping units. The heat dissipation base plate is located below the heat dissipation module. The thermally conductive layer is located between the heat dissipation base plate and the insertion cavity.

[0009] As further explained, the heat dissipation module includes a heat dissipation pipe and a heat dissipation middle plate; the heat dissipation pipe is located below the pressing unit; and the heat dissipation middle plate is located at the bottom end of the heat dissipation pipe.

[0010] As further explained, the heat dissipation pipe includes an inlet pipe, an outlet pipe, and multiple sets of U-shaped pipes distributed at equal intervals; the inlet pipe and the outlet pipe are symmetrically distributed on both sides of the optical module mounting base; the multiple sets of U-shaped pipes are connected end to end between the inlet pipe and the outlet pipe; the output end of one set of U-shaped pipes is connected to the input end of the adjacent set of U-shaped pipes through a connecting block, and the multiple sets of connecting blocks are distributed side by side on the heat dissipation plate and are connected to the heat dissipation plate.

[0011] As further explained, the U-shaped tube includes a straight section, a transition section, and a bent section; the straight section is disposed on the heat dissipation plate; the transition section is inclinedly disposed on one side of the straight section; the bent section is disposed on one side of the transition section and maintains a certain gap with the heat dissipation plate.

[0012] As further explained, the heat dissipation plate has upwardly protruding heat dissipation parts at both ends, and the inner side of the heat dissipation parts abuts against the outer side of the U-shaped tube; the bottom end of the heat dissipation plate has a downward-opening heat dissipation channel, and the heat dissipation plate and the heat dissipation channel are connected by a heat dissipation connecting hole.

[0013] As further explained, the heat dissipation base plate is tightly connected to the bottom end of the heat dissipation middle plate; the heat dissipation base plate is provided with multiple sets of upwardly protruding heat dissipation teeth, and the multiple sets of heat dissipation teeth are regularly or irregularly distributed in the heat dissipation channel.

[0014] As a further explanation, a fixing frame is provided between the heat dissipation base plate and the heat conduction layer; a fixing cavity is provided inside the fixing frame to fix the heat dissipation base plate and the heat conduction layer; a fixing part is provided around the fixing frame to engage with the heat dissipation base plate, and the fixing part has a "J" shaped structure.

[0015] As further explained, the clamping unit includes a first connecting part, a second connecting part, and at least two sets of elastic parts; the elastic parts are disposed between the first connecting part and the second connecting part, and adjacent sets of elastic parts are connected end to end; the first connecting part, the elastic parts, and the second connecting part form a wave structure.

[0016] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0017] By setting up a heat dissipation module consisting of heat pipes, a heat dissipation middle plate, and a heat dissipation base plate, the heat dissipation module forms a highly efficient liquid cooling circulation system from top to bottom, which allows heat to be quickly carried away and prevents it from accumulating inside the heat dissipation components. Coolant flows in both the heat pipes and the heat dissipation middle plate, which can better remove heat from the optical module through heat exchange. The heat is then dissipated sequentially through the heat dissipation base plate, the heat dissipation middle plate, and the heat pipes, improving heat dissipation efficiency. At the same time, by setting up a thermally conductive layer, it can directly and closely contact the optical module to form an efficient heat conduction path, further improving heat dissipation efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the overall structure of a high-efficiency optical module liquid cooling device provided by this utility model;

[0020] Figure 2 A schematic diagram of the overall structure of the clamping unit provided by this utility model;

[0021] Figure 3 A schematic diagram of the overall structure of the heat dissipation component provided by this utility model;

[0022] Figure 4 for Figure 3 Enlarged diagram of A in the middle;

[0023] Figure 5 A schematic diagram of the internal structure of the heat dissipation plate provided by this utility model;

[0024] Figure 6 This is a schematic diagram of the overall structure of the optical module mounting base provided by this utility model.

[0025] The following are the labeling elements in the figure:

[0026] 10. Top plate; 11. Optical module mounting bracket; 111. Socket cavity; 12. Optical module;

[0027] 20. Heat dissipation module; 21. Heat pipe; 211. Liquid inlet pipe; 212. Liquid outlet pipe; 213. U-shaped pipe; 213a. Straight section; 213b. Transition section; 213c. Bending section; 214. Connecting block; 22. Heat dissipation middle plate; 221. Heat dissipation section; 222. Heat dissipation channel; 223. Heat dissipation connecting hole;

[0028] 30. Heat dissipation base plate; 31. Heat dissipation rack; 32. Fixing frame; 321. Fixing part;

[0029] 40. Thermal conductive layer;

[0030] 50; clamping unit; 51; first connecting part; 52; second connecting part; 53; elastic part. Detailed Implementation

[0031] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0032] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0033] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0036] In one embodiment of this utility model, such as Figure 1-6 As shown, a high-efficiency liquid cooling device for optical modules is provided, including a top plate 10, an optical module mounting base 11, and a heat dissipation assembly. The top plate 10 has multiple sets of clamping units for tight fit. The optical module mounting base 11 is located below the top plate 10, and has multiple sets of insertion cavities 111 for mounting the optical module. The number of clamping units is the same as the number of insertion cavities 111, and each set of clamping units corresponds one-to-one with each set of insertion cavities 111. The heat dissipation assembly is located between the top plate 10 and the optical module mounting base 11, with the clamping units abutting against the top of the heat dissipation assembly and tightly fitting the bottom of the heat dissipation assembly to the top of the insertion cavity 111. The heat dissipation assembly is used for heat dissipation of the optical module. The heat dissipation assembly includes a heat dissipation module 20, a heat dissipation base plate 30, and a thermally conductive layer 40. The heat dissipation module 20 is located below the clamping units. The heat dissipation base plate 30 is located below the heat dissipation module 20. The heat-conducting layer 40 is disposed between the heat dissipation base plate 30 and the insertion cavity 111.

[0037] In this embodiment, the thermally conductive layer 40 is made of a thermally conductive material, such as silver-based composite material or silicon carbide ceramic. By setting the thermally conductive layer 40, it can directly and closely contact the optical module to form an efficient heat conduction path, so that heat can be conducted from the optical module to the heat dissipation component more quickly, thereby improving the heat dissipation efficiency.

[0038] By setting up a heat dissipation module 20 consisting of heat dissipation pipes 21 and heat dissipation middle plate 22, and a heat dissipation base plate 30, the heat dissipation pipes 21, heat dissipation middle plate 22, and heat dissipation base plate 30 in the heat dissipation module 20 form an efficient liquid cooling circulation system from top to bottom, so that heat can be quickly carried away and prevented from accumulating inside the heat dissipation component. In addition, coolant flows in both heat dissipation pipes 21 and heat dissipation middle plate 22, which can better remove the heat from the optical module through heat exchange. The heat is then dissipated through the heat dissipation base plate 30, heat dissipation middle plate 22, and heat dissipation pipes 21 in sequence, improving the heat dissipation efficiency. At the same time, by setting up a thermally conductive layer 40, it can directly and closely contact the optical module to form an efficient heat conduction path, further improving the heat dissipation efficiency.

[0039] Preferably, the heat dissipation module 20 includes a heat dissipation pipe 21 and a heat dissipation middle plate 22. The heat dissipation pipe 21 is located below the pressing unit. The heat dissipation middle plate 22 is located at the bottom end of the heat dissipation pipe 21. By combining the heat dissipation pipe 21 and the heat dissipation middle plate 22 with the heat dissipation base plate 30, a highly efficient liquid cooling circulation system is formed, which allows heat to be quickly carried away, preventing accumulation inside the heat dissipation component and improving heat dissipation efficiency.

[0040] Specifically, the heat dissipation pipe 21 includes an inlet pipe 211, an outlet pipe 212, and multiple sets of equally spaced U-shaped pipes 213. The inlet pipe 211 and the outlet pipe 212 are symmetrically distributed on both sides of the optical module mounting base 11. The multiple sets of U-shaped pipes 213 are connected end-to-end between the inlet pipe 211 and the outlet pipe 212. The output end of one set of U-shaped pipes 213 is connected to the input end of the adjacent set of U-shaped pipes 213 through a connecting block 214. The multiple sets of connecting blocks 214 are arranged side-by-side on the heat dissipation plate 22 and are connected to the heat dissipation plate 22. By incorporating liquid pipes, liquid outlet pipes 212, U-shaped pipes 213, and connecting blocks 214, a liquid cooling channel is formed. This, combined with the heat dissipation plate 22, increases the heat dissipation area and further enhances the heat exchange efficiency. Furthermore, each U-shaped pipe 213 is independently paired with its corresponding insertion cavity 111 to conduct heat to the corresponding optical module, ensuring that each optical module can dissipate heat stably without interfering with each other, thereby improving the overall heat transfer efficiency.

[0041] More specifically, the U-shaped tube 213 includes a straight section 213a, a transition section 213b, and a bent section 213c. The straight section 213a is disposed on the heat dissipation plate 22. The transition section 213b is inclinedly disposed on one side of the straight section 213a. The bent section 213c is disposed on one side of the transition section 213b and maintains a certain gap with the heat dissipation plate 22. Thus, the straight section 213a is lower than the bent section 213c, meaning that the bent section 213c exhibits an independent floating state. This allows external components to be accommodated below the bent section 213c without interfering with them, improving the practicality of the liquid cooling device.

[0042] Furthermore, the heat dissipation plate 22 has upwardly protruding heat dissipation portions 221 at both ends, with the inner side of the heat dissipation portion 221 abutting against the outer side of the U-shaped tube 213. The bottom end of the heat dissipation plate 22 has a downward-opening heat dissipation channel 222, and a connecting heat dissipation hole 223 connects the heat dissipation plate 22 and the heat dissipation channel 222. By providing the heat dissipation portions 221, the heat dissipation area between the side and bottom surfaces of the U-shaped tube 213 and the heat dissipation plate 22 is increased, further improving heat transfer between them, thereby improving the overall heat transfer efficiency.

[0043] Furthermore, the heat dissipation base plate 30 is tightly connected to the bottom end of the heat dissipation middle plate 22. The heat dissipation base plate 30 is provided with multiple sets of upward-protruding heat dissipation ridges 31, which are regularly or irregularly distributed within the heat dissipation channels 222. By setting the heat dissipation ridges 31, the ridges 31 and the heat dissipation channels 222 work together to form multi-level heat dissipation channels, increasing the heat dissipation area, accelerating heat dissipation, and thus improving the overall heat transfer efficiency.

[0044] Preferably, a fixing frame 32 is provided between the heat dissipation base plate 30 and the heat-conducting layer 40. The fixing frame 32 has a fixing cavity for fixing the heat dissipation base plate 30 and the heat-conducting layer 40. The fixing frame 32 has fixing parts 321 around its perimeter that engage with the heat dissipation base plate 30; these fixing parts 321 have a "J" shape. By providing the fixing cavity and fixing parts 321, the heat dissipation base plate 30 and the heat-conducting layer 40 are tightly connected and fixed within the fixing cavity, improving the fit between the heat dissipation base plate 30 and the heat-conducting layer 40, thereby improving the overall heat transfer efficiency.

[0045] Preferably, the clamping unit includes a first connecting portion 50, a clamping unit 51, a second connecting portion 52, and at least two sets of elastic portions 53. The elastic portions 53 are disposed between the first connecting portion 50, the clamping unit 51, and the second connecting portion 52, with adjacent sets of elastic portions 53 connected end-to-end. A wave structure is formed between the first connecting portion 50, the clamping unit 51, the elastic portions 53, and the second connecting portion 52. In this embodiment, the clamping unit is integrally made of an elastic material, such as an elastic metal, stainless steel, or an alloy. By providing the clamping unit, the heat dissipation component is tightly pressed against the top of the insertion cavity 111, ensuring close contact between the heat dissipation component and the optical module within the insertion cavity 111, thereby ensuring good heat transfer performance under various operating conditions.

[0046] The above are merely preferred embodiments of the present utility model, and only specifically describe the technical principles of the present utility model. These descriptions are only for explaining the principles of the present utility model and should not be construed as limiting the scope of protection of the present utility model in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model, as well as other specific embodiments of the present utility model that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of the present utility model.

Claims

1. A high-efficiency optical module liquid cooling device, characterized by comprising: The utility model relates to a light module fixing seat, the light module fixing seat is equipped with a plurality of groups of insertion cavities for the installation of light modules below the top plate, the number of the compression units is same with the number of the insertion cavities, and each group of compression units and each group of insertion cavities are arranged one by one. The utility model relates to a heat dissipation assembly arranged between the top plate and the light module fixing seat, and the compression units abut against the top end of the heat dissipation assembly, and the bottom end of the heat dissipation assembly is tightly attached to the top end of the insertion cavities; the heat dissipation assembly is used for heat dissipation of the light module. The heat dissipation assembly comprises a heat dissipation module, a heat dissipation bottom plate and a heat conduction layer; the heat dissipation module is arranged below the compression units; the heat dissipation bottom plate is arranged below the heat dissipation module; and the heat conduction layer is arranged between the heat dissipation bottom plate and the insertion cavities. The heat dissipation module comprises heat dissipation pipes and a heat dissipation middle plate; the heat dissipation pipes are arranged below the compression units; and the heat dissipation middle plate is arranged at the bottom end of the heat dissipation pipes. The heat dissipation pipes comprise liquid inlet pipes, liquid outlet pipes and a plurality of groups of U-shaped pipes distributed at equal intervals; the liquid inlet pipes and the liquid outlet pipes are symmetrically arranged on both sides of the light module fixing seat; a plurality of groups of the U-shaped pipes are connected in series between the liquid inlet pipes and the liquid outlet pipes; the output end of one group of the U-shaped pipes is connected to the input end of an adjacent group of the U-shaped pipes through a connecting block; a plurality of groups of the connecting blocks are arranged side by side on the heat dissipation middle plate and are in communication with the heat dissipation middle plate.

2. The efficient optical module liquid cooling device according to claim 1, wherein, The U-shaped pipes comprise straight sections, transition sections and bent sections; the straight sections are arranged on the heat dissipation middle plate; the transition sections are arranged obliquely on one side of the straight sections; and the bent sections are arranged on one side of the transition sections and maintain a certain gap with the heat dissipation middle plate.

3. The high-efficient liquid cooling device for optical module according to claim 2, characterized in that, The heat dissipation middle plate is provided with heat dissipation portions protruding upward at both ends; the inner side surface of the heat dissipation portions abuts against the outer side of the U-shaped pipes; and the heat dissipation middle plate is provided with heat dissipation flow channels opening downward at the bottom end; the heat dissipation middle plate and the heat dissipation flow channels are provided with heat dissipation connecting holes in communication.

4. The high-efficient liquid cooling device for optical module according to claim 3, characterized in that, The heat dissipation bottom plate is tightly connected to the bottom end of the heat dissipation middle plate; the heat dissipation bottom plate is provided with a plurality of groups of heat dissipation splines protruding upward; and a plurality of groups of the heat dissipation splines are regularly or irregularly arranged in the heat dissipation flow channels.

5. The high-efficient liquid cooling device for optical module according to claim 3 or 4, characterized in that, The heat dissipation bottom plate and the heat conduction layer are provided with a fixing frame; the fixing frame is provided with a fixing cavity for fixing the heat dissipation bottom plate and the heat conduction layer; the fixing frame is provided with a fixing portion for clamping the heat dissipation bottom plate around the fixing frame, and the fixing portion has a "J" shaped structure.

6. The high-efficient liquid cooling device for optical module according to claim 5, characterized in that, The compression units comprise first connecting portions, second connecting portions and at least two groups of elastic portions; the elastic portions are arranged between the first connecting portions and the second connecting portions, and adjacent two groups of the elastic portions are connected in series; and the first connecting portions, the elastic portions and the second connecting portions form a wave structure.

7. The efficient light module liquid cooling device of claim 1, wherein, ​ 8. The efficient light module liquid cooling device of claim 1, wherein, ​

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