Liquid cooling phase change heat dissipation device
By pre-installing phase change material in the heat sink, the problem of inconsistency between liquid cooling test and normal working conditions is solved, and efficient heat dissipation without multiple disassembly and reassembly is achieved.
Patent Information
- Application Number
- CN202422568601.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-10-23
AI Technical Summary
In existing technologies, the liquid cooling test and the normal working state are inconsistent, requiring multiple disassembly and reassembly of structural components, resulting in inaccurate test results.
Design a liquid-cooled phase change heat dissipation device. The heat dissipation plate has a cavity inside, into which phase change material is pre-placed. Liquid cooling is performed through the liquid cooling inlet and liquid cooling outlet. After testing, the inlet and outlet are sealed to avoid repeated disassembly and assembly.
This eliminates the need for repeated disassembly and reassembly of the liquid cooling structure, maintaining consistency between testing and normal operation, and improving heat dissipation.
Smart Images
Figure CN223553623U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat dissipation technology, and in particular to a liquid-cooled phase change heat dissipation device. Background Technology
[0002] Currently, some products, due to environmental and temperature requirements, can utilize forced cooling methods such as liquid cooling or air cooling during testing. However, when installed in a complete machine for normal operation, forced cooling cannot be used. The current solution involves using liquid cooling during testing, where the flow of liquid within channels removes heat from the heat source. These channels are typically like... Figure 1 As shown, the heat source contacts the water channel through structural components, and the heat is carried away by the liquid flow within the channel. After testing, the water channel and other structural components need to be replaced with a phase change material to ensure that the product dissipates heat through the melting of the phase change material during normal operation. Testing and normal operation require multiple disassemblies and reassemblies, which can easily lead to inconsistencies in the state before and after testing. Utility Model Content
[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art and to provide a liquid-cooled phase change heat dissipation device.
[0004] According to an embodiment of the present invention, a liquid-cooled phase change heat dissipation device includes a heat dissipation plate, a cavity is provided inside the heat dissipation plate, a liquid-cooled flow channel and a phase change material are provided in the cavity, and a liquid-cooled inlet and a liquid-cooled outlet are respectively connected to the liquid-cooled flow channel. A removable sealing cap is provided on the liquid-cooled inlet and the liquid-cooled outlet respectively.
[0005] The liquid-cooled phase change heat dissipation device according to the embodiment of the present utility model has at least the following beneficial effects: the phase change material is placed in the cavity during the manufacturing process of the heat dissipation device. During product testing, the sealing caps on the liquid cooling inlet and liquid cooling outlet are opened, and liquid is directly introduced for liquid cooling heat dissipation. After the test is completed, it is only necessary to seal the liquid cooling inlet and liquid cooling outlet. The heat dissipation effect is good, and there is no need to disassemble and reassemble the liquid cooling structure multiple times, avoiding inconsistencies in the state before and after the test.
[0006] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0007] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings;
[0008] Figure 1 This is a structural diagram of a liquid-cooled phase change heat dissipation device;
[0009] Figure 2 This is a three-dimensional structural diagram of a liquid-cooled phase change heat dissipation device;
[0010] Figure 3 This is a cross-sectional view of a liquid-cooled phase change heat dissipation device. Detailed Implementation
[0011] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0012] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.
[0013] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0014] Reference Figures 1 to 3 This utility model discloses a liquid-cooled phase change heat dissipation device, including a heat dissipation plate 10, an internal cavity 12, a liquid-cooled flow channel 11, and a phase change material 121. The phase change material 121 includes at least one of inorganic salts, paraffin wax, and fatty acids. During the phase change process, the phase change material 121 changes from a solid to a liquid state, absorbing a large amount of latent heat. The heat dissipation plate 10 has a liquid-cooled inlet 13 and a liquid-cooled outlet 14, which are respectively connected to the liquid-cooled flow channel 11. The liquid-cooled inlet 13 and the liquid-cooled outlet 14 are each equipped with a removable sealing cap. During manufacturing, the phase change material 121 is placed into the cavity 12. During product testing, the sealing caps on the liquid-cooled inlet 13 and the liquid-cooled outlet 14 are opened, and liquid is directly introduced for liquid cooling. After testing, the liquid-cooled inlet 13 and the liquid-cooled outlet 14 are simply sealed. This method provides good heat dissipation, eliminates the need for repeated disassembly and reassembly of the liquid-cooling structure, and avoids inconsistencies in the state before and after testing.
[0015] In some embodiments, the heat sink 10 has multiple through holes 15, and heat-conducting elements are disposed in the through holes 15 to improve heat dissipation. For example... Figure 1As shown, the liquid cooling channel 11 is distributed in a disc shape on the heat sink 10 to form multiple channels. Each channel has multiple through holes 15 on both sides. Adjacent channels are interconnected, so that the heat-conducting component surrounds each channel and the phase change material 121, thereby increasing the heat exchange between the liquid in the channel, the phase change material 121 and the heat-conducting component, and further improving the heat dissipation effect.
[0016] Furthermore, the inner wall of the through hole 15 is provided with threads, and the heat-conducting component is a screw, which facilitates the connection between the heat-conducting component and the through hole 15.
[0017] It will be readily understood by those skilled in the art that the above preferred methods can be freely combined and superimposed without conflict.
[0018] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are included within the patent protection scope of this utility model.
Claims
1. A liquid-cooled phase change heat dissipation device, characterized in that, include: The heat sink (10) has a cavity (12) inside, a liquid cooling channel (11) and a phase change material (121) in the cavity, and a liquid cooling inlet (13) and a liquid cooling outlet (14) that are respectively connected to the liquid cooling channel (11) on the heat sink (10). The liquid cooling inlet (13) and the liquid cooling outlet (14) are respectively provided with removable sealing caps.
2. The liquid-cooled phase change heat dissipation device according to claim 1, characterized in that: The heat sink (10) is provided with a plurality of through holes (15), and a heat-conducting element is provided in the through holes (15).
3. The liquid-cooled phase change heat dissipation device according to claim 2, characterized in that: The liquid cooling channel (11) is distributed in a disc shape on the heat sink (10) to form multiple channels, and each channel has multiple through holes (15) on both sides.
4. The liquid-cooled phase change heat dissipation device according to claim 2, characterized in that: The inner wall of the through hole (15) is provided with threads, and the heat-conducting component is a screw.