Micro-channel high-heat-flux heat dissipation cold plate structure
By introducing arc-shaped channels and filters into the microchannel high-heat flow density heat dissipation cold plate structure, the problems of easy blockage of channels and insufficient heat dissipation performance are solved, and efficient coolant filtration and heat dissipation effects are achieved.
Patent Information
- Application Number
- CN202422163883.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-03
AI Technical Summary
The existing microchannel high-heat flow density heat dissipation cold plate structure lacks an effective filtering structure, which is prone to clogging and needs to be improved, which cannot meet the growing heat dissipation needs of electronic devices.
A microchannel structure including a shell, a sealing plate, a fixed block, a heat dissipation mechanism and a filter element is designed. Through the combination of arc-shaped channels and filter elements, the filtering and spiral flow of the coolant are realized, extending the residence time of the coolant in the channel and improving the heat dissipation efficiency.
It effectively prevents the coolant impurities from clogging the channel, improves the residence time of the coolant in the channel, thereby improving the heat dissipation efficiency, facilitating the filter element replacement, and meeting the heat dissipation needs of high heat flow density.
Smart Images
Figure CN223140773U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a heat dissipation cold plate structure, in particular to a micro-channel high heat flux density heat dissipation cold plate structure. Background Technique
[0002] At present, the cooling of components such as electronic chips mainly adopts two methods: heat pipe cooling and cold plate cooling. Heat pipe cooling mainly transfers the heat of components such as electronic chips to the heat pipe. The heat conduction coefficient of the heat pipe is relatively high. Generally, the heat conduction coefficient of an ordinary heat pipe is one order of magnitude higher than that of metal. However, it should be noted that the heat pipe itself can only be used as a heat conduction element (transferring heat), and it does not have its own heat dissipation ability. Therefore, it must be used in combination with other thermal control methods to finally dissipate the heat to the external environment or heat sink. Then, the heat pipe dissipates heat to the outside through cooling methods such as air cooling. This cooling method has a simple system and a single-phase heat dissipation method. There is a certain contact thermal resistance between the heat pipe and the electronic chip, and the heat transfer flux is limited. The most successful application field of the heat pipe is the heat dissipation of electronic equipment, especially aerospace electronic equipment. In recent decades, with the continuous improvement of electronic integration, its power consumption has also been increasing, and the thermal control situation of electronic equipment has become increasingly severe. As a traditional cooling method, heat pipe cooling has gradually been unable to meet the growing heat dissipation requirements of electronic equipment.
[0003] Another way to apply to the heat dissipation of electronic equipment is cold plate cooling. Cold plate cooling is a traditional thermal management method for electronic components, mainly through the flow of internal coolant for heat exchange, generally mainly in a single-phase heat exchange method, and the heat transfer flux density of the heat exchange is limited. For the heat transfer enhancement of the cold plate, it is mainly achieved by changing the channel structure and the fluid flow mode. When the existing micro-channel high heat flux density heat dissipation cold plate structure is in use, there is no good filtering structure, the channels are easily blocked, and at the same time, the heat dissipation performance also needs to be improved, which is not conducive to use. Content of the Utility Model
[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a micro-channel high heat flux density heat dissipation cold plate structure, which effectively solves the problems that when the existing micro-channel high heat flux density heat dissipation cold plate structure is in use, there is no good filtering structure, the channels are easily blocked, and at the same time, the heat dissipation performance also needs to be improved, which is not conducive to use.
[0005] To achieve the above object, the utility model provides the following technical solutions: The utility model includes a housing arranged externally, a first end plate arranged at one end of the housing, and a second end plate arranged at the other end of the housing. It also includes a fixing block, a fixing bolt, a through hole, a heat dissipation mechanism, and a filter element. The first end plate is composed of two spliced housings. Fixing blocks are arranged on both sides of the two housings, and the fixing blocks are fixed by fixing bolts. A heat dissipation mechanism is installed inside the housing, and a filter element is installed inside the first end plate;
[0006] The heat dissipation mechanism includes a heat dissipation cold plate, an arc-shaped channel, a shunt port, a confluence port, and a confluence cavity. The heat dissipation cold plate is installed inside the housing. A number of arc-shaped channels are provided inside the heat dissipation cold plate. One end of the arc-shaped channel is provided with a shunt port, and the other end of the arc-shaped channel is provided with a confluence port. A confluence cavity is provided inside the second end plate.
[0007] Preferably, a liquid inlet is provided in the middle of one side of the first end plate.
[0008] Preferably, a liquid outlet is provided in the middle of one side of the second end plate.
[0009] Preferably, a through hole is provided in the fixing block corresponding to the position of the fixing bolt.
[0010] Preferably, the filter element includes a frame, a filter element, a limiting block, and a limiting groove. The filter element is installed inside the frame, and limiting blocks are provided in the middle of both sides of the frame.
[0011] Preferably, a limiting groove is provided in the first end plate corresponding to the position of the limiting block.
[0012] Beneficial effects: When the present utility model is in use, the coolant enters through the liquid inlet. The installed filter element can filter the coolant passing through the first end plate. The filtered coolant then enters the arc-shaped channel of the heat dissipation cold plate through the shunt port for heat dissipation. The provided arc-shaped channel enables the coolant to spiral forward therein, which can increase the residence time of the coolant in the arc-shaped channel and further improve the heat dissipation efficiency. The used coolant enters the confluence cavity through the confluence port and is then discharged through the liquid outlet on the confluence cavity, which is convenient for use. When the filter element needs to be replaced, the fixing bolt is unscrewed, a new filter element is replaced, and the filter element is reinstalled in place, which is convenient for replacement as needed. The structure of the present utility model is novel and ingenious. It can filter the coolant used for cooling, prevent impurities in the coolant from blocking the arc-shaped channel, and the provided arc-shaped channel enables the coolant to spiral forward therein, which can increase the residence time of the coolant in the arc-shaped channel and further improve the heat dissipation efficiency. Description of the Drawings
[0013] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:
[0014] Figure 1 is the overall structural schematic diagram of the present utility model;
[0015] Figure 2 is the internal structural schematic diagram of the present utility model;
[0016] Figure 3 is the structural schematic diagram of the filter element of the present utility model;
[0017] Reference Numerals in the Figures: 1, housing; 2, first end plate; 3, liquid inlet; 4, second end plate; 5, liquid outlet; 6, fixing block; 7, fixing bolt; 8, through hole; 9, heat dissipation mechanism; 10, heat dissipation cold plate; 11, arc-shaped channel; 12, diversion port; 13, confluence port; 14, confluence cavity; 15, filter element; 16, frame; 17, filter element; 18, limiting block; 19, limiting groove. Detailed Embodiments
[0018] The following further elaborates on the detailed embodiments of the present utility model in conjunction with the appended Figures 1-3 drawings.
[0019] Embodiment 1, given by Figures 1-3 The present utility model provides a microchannel high heat flux density heat dissipation cold plate structure, including a housing 1 disposed externally, a first end plate 2 disposed at one end of the housing 1, and a second end plate 4 disposed at the other end of the housing 1. It also includes a fixing block 6, a fixing bolt 7, a through hole 8, a heat dissipation mechanism 9, and a filter element 15. The first end plate 2 is formed by splicing two housings. Fixing blocks 6 are disposed on both sides of the two housings, and the fixing blocks 6 are fixed by fixing bolts 7. A heat dissipation mechanism 9 is installed inside the housing 1, and a filter element 15 is installed inside the first end plate 2;
[0020] The heat dissipation mechanism 9 includes a heat dissipation cold plate 10, an arc-shaped channel 11, a diversion port 12, a confluence port 13, and a confluence cavity 14. The heat dissipation cold plate 10 is installed inside the housing 1. A plurality of arc-shaped channels 11 are formed inside the heat dissipation cold plate 10. A diversion port 12 is disposed at one end of the arc-shaped channel 11, and a confluence port 13 is disposed at the other end of the arc-shaped channel 11. A confluence cavity 14 is formed inside the second end plate 4.
[0021] Embodiment 2
[0022] In Embodiment 1, the first end plate 2 is inconvenient to use. Referring to Figure 1 , as another preferred embodiment, the difference from Embodiment 1 is that a liquid inlet 3 is disposed in the middle of one side of the first end plate 2 to facilitate the liquid inlet of the first end plate 2.
[0023] Embodiment 3
[0024] In Embodiment 1, the second end plate 4 is inconvenient to use. Referring to Figure 1 , as another preferred embodiment, the difference from Embodiment 1 is that a liquid outlet 5 is disposed in the middle of one side of the second end plate 4 to facilitate the liquid outlet of the second end plate 4.
[0025] Embodiment 4
[0026] In Embodiment 1, the fixing block 6 is inconvenient to use. Referring to Figure 1, As another preferred embodiment, the difference from the first embodiment is that a through hole 8 is provided at the position of the fixing block 6 corresponding to the fixing bolt 7, which facilitates the fixing of the fixing block 6.
[0027] Embodiment Five
[0028] In the first embodiment, when the first end plate 2 admits liquid, the filtering performance is insufficient. Refer to Figure 1 , As another preferred embodiment, the difference from the first embodiment is that the filter element 15 includes a frame 16, a filter element 17, a limit block 18 and a limit groove 19. The filter element 17 is installed inside the frame 16, and limit blocks 18 are provided in the middle of both sides of the frame 16. During use, the coolant passing through the first end plate 2 can be filtered by the installed filter element 17, and the filtered coolant then enters the arc-shaped channel 11 of the heat dissipation cold plate 10 through the shunt port 12 for heat dissipation.
[0029] Embodiment Six
[0030] In Embodiment Five, the installation and use of the limit block 18 are inconvenient. Refer to Figure 1 , As another preferred embodiment, the difference from Embodiment Five is that a limit groove 19 is provided at the position of the first end plate 2 corresponding to the limit block 18, which facilitates the installation and use of the limit block 18.
[0031] During specific use: When the present utility model is in use, the coolant enters through the liquid inlet 3, and the coolant passing through the first end plate 2 can be filtered by the installed filter element 17. The filtered coolant then enters the arc-shaped channel 11 of the heat dissipation cold plate 10 through the shunt port 12 for heat dissipation. The provided arc-shaped channel 11 enables the coolant to spiral forward therein, which can increase the residence time of the coolant in the arc-shaped channel 11 and further improve the heat dissipation efficiency. The used coolant enters the confluence chamber 14 through the confluence port 13 and is then discharged through the liquid outlet 5 on the confluence chamber 14, which is convenient for use. When the filter element 17 needs to be replaced, the fixing bolt 7 is unscrewed, a new filter element 17 is replaced, and the filter element 17 is reinstalled in place, which is convenient for replacement as needed.
[0032] Advantageous effects: The structure of the present utility model is novel and ingeniously conceived. It can filter the coolant used for cooling, prevent impurities in the coolant from blocking the arc-shaped channel 11, and the provided arc-shaped channel 11 enables the coolant to spiral forward therein, which can increase the residence time of the coolant in the arc-shaped channel 11 and further improve the heat dissipation efficiency.
[0033] Persons skilled in the art shall connect all the electrical components in this case to their adapted power supplies through wires, and appropriate controllers and encoders should be selected according to the actual situation to meet the control requirements. For the specific connection and control sequence, reference should be made to the sequence of operations among the electrical components in the following working principle to complete the electrical connection. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and no further description of electrical control will be given.
[0034] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A microchannel high heat flux cooling cold plate structure, comprising a housing (1) arranged externally, a first end sealing plate (2) arranged at one end of the housing (1), and a second end sealing plate (4) arranged at the other end of the housing (1), characterized in that: It also includes a fixing block (6), a fixing bolt (7), a through hole (8), a heat dissipation mechanism (9) and a filter element (15). The first end sealing plate (2) is formed by splicing two shells. Fixing blocks (6) are arranged on both sides of the two shells. The fixing blocks (6) are fixed by fixing bolts (7). A heat dissipation mechanism (9) is installed inside the shell (1), and a filter element (15) is installed inside the first end sealing plate (2). The heat dissipation mechanism (9) includes a heat dissipation cold plate (10), an arc-shaped channel (11), a shunt port (12), a confluence port (13) and a confluence cavity (14). The heat dissipation cold plate (10) is installed inside the shell (1). A number of arc-shaped channels (11) are opened inside the heat dissipation cold plate (10). One end of the arc-shaped channel (11) is provided with a shunt port (12), and the other end of the arc-shaped channel (11) is provided with a confluence port (13). A confluence cavity (14) is opened inside the second end sealing plate (4).
2. The microchannel high heat flux dissipation cold plate structure according to claim 1, wherein: A liquid inlet (3) is arranged in the middle of one side of the first end sealing plate (2).
3. A microchannel high heat flux cooling cold plate structure according to claim 1, characterized in that: A liquid outlet (5) is arranged in the middle of one side of the second end sealing plate (4).
4. A microchannel high heat flux cooling plate structure according to claim 1, characterized in that: Through holes (8) are opened at the positions of the fixing blocks (6) corresponding to the fixing bolts (7).
5. A microchannel high heat flux cooling plate structure according to claim 1, characterized in that: The filter element (15) includes a frame (16), a filter element (17), a limiting block (18) and a limiting groove (19). The filter element (17) is installed inside the frame (16). Limiting blocks (18) are arranged in the middle of both sides of the frame (16).
6. The microchannel high heat flux dissipation cold plate structure according to claim 5, characterized in that: Limiting grooves (19) are opened at the positions of the first end sealing plate (2) corresponding to the limiting blocks (18).