CN-122028383-A - Liquid cooling sheet structure and electronic equipment

Abstract

The invention discloses a liquid cooling sheet structure and electronic equipment, which relates to the technical field of liquid cooling sheets, wherein the liquid cooling sheet structure comprises a supporting part and two cover plates, the supporting part is partially hollowed out to form a flow channel, the two cover plates are respectively attached to two opposite sides of the supporting part along a first direction, the flow channel is sealed, at least one cover plate is formed into a composite layer structure, the composite layer structure comprises a metal material layer and a high polymer material layer, a part of the metal material layer is removed to form a first through hole, the first through hole and the high polymer material layer opposite to the first through hole form a window structure, and working media in the runner are exposed through the window structure. The metal material layer has extremely low water vapor transmittance, and under the condition that the supporting part and the cover body are sealed well, the water vapor transmittance can be greatly reduced, and under the same size and volume, the heat dispersion performance, the long-term service performance and the safety performance of the liquid cooling module are improved, the processing of a window structure can be realized through material removal processing, and the requirement of the flow passage working medium visualization is met.

Inventors

• LI KE
• YU QUANYAO

Assignees

• 歌尔股份有限公司

Dates

Publication Date

20260512

Application Date

20260331

Claims (10)

1. 1. A liquid cooling fin structure, comprising: The support part is partially hollowed out to form a runner, and The two cover plates are respectively attached to two opposite sides of the supporting part along the first direction, the runner is sealed, at least one cover plate is formed into a composite layer structure, the composite layer structure comprises a metal material layer and a high polymer material layer, a part of the metal material layer is removed to form a first through hole, the first through hole and the high polymer material layer opposite to the first through hole form a window structure, and working media in the runner are exposed through the window structure.
2. 2. The liquid-cooled sheet structure of claim 1, wherein two cover plates are each formed as a composite layer structure, and wherein each cover plate is provided with the window structure.
3. 3. The liquid cooling sheet structure according to claim 1, wherein the composite layer structure comprises two metal material layers, the two metal material layers are arranged on two opposite sides of the polymer material layer, one metal material layer is provided with the first through hole, the other metal material layer is provided with a second through hole opposite to the first through hole, and the first through hole, the second through hole and the polymer material layer opposite to the first through hole form the window structure.
4. 4. The liquid cooling fin structure of claim 1, wherein the area of the window structure is S1, and the area of the end face of the cover plate is S2, S1/S2 is less than or equal to 1/4.
5. 5. The liquid cooling sheet structure of claim 1, wherein a ratio of a total thickness of the polymer material layer to a total thickness of the metal material layer is 1/3 to 1/2 along the first direction.
6. 6. The liquid-cooled sheet structure according to claim 1, wherein the supporting portion is formed as a metal material piece, wherein, The composite layer structure comprises a metal material layer and a polymer material layer, wherein the metal material layer is arranged on one side of the polymer material layer, which is away from the supporting part, or The composite layer structure comprises a metal material layer and a polymer material layer, wherein the polymer material layer is arranged on one side of the metal material layer, which is opposite to the supporting part, and the metal material layer is welded with the supporting part, or The composite layer structure comprises a high polymer material layer and two metal material layers, wherein the two metal material layers are respectively arranged on two opposite sides of the high polymer material layer, and the supporting part is welded with one metal material layer.
7. 7. The liquid-cooled sheet structure according to claim 1, wherein the supporting portion is formed as a metal material piece, both sides of the supporting portion opposite in the first direction are connection sides, a connection area is formed on the connection side, and a groove is provided in the connection area; The composite layer structure comprises a metal material layer and a polymer material layer, wherein the metal material layer is arranged on one side of the polymer material layer, which is opposite to the supporting part, the polymer material layer and the supporting part can be welded by laser, and the part of the cover plate corresponding to the connecting area is heated and melted into the groove so that a mortise-tenon joint structure is formed between the cover plate and the supporting part.
8. 8. The liquid-cooled sheet structure according to claim 1, wherein the metal material layer is an aluminum foil layer or a copper foil layer, and/or, The polymer material layer is at least one of PET, PPS, PP and LCP, and/or, And forming the first through hole by etching a part of the metal material layer.
9. 9. The liquid-cooled sheet structure of claim 1, wherein both sides of the support portion opposite in the first direction form a connection side, and a positioning groove is provided on the connection side; each cover plate is provided with a positioning convex part corresponding to the positioning groove, and the positioning convex parts extend into the positioning grooves.
10. 10. An electronic device comprising the liquid-cooled sheet structure of any one of claims 1-9.

Description

Liquid cooling sheet structure and electronic equipment Technical Field The invention relates to the technical field of liquid cooling sheets, in particular to a liquid cooling sheet structure and electronic equipment. Background The liquid cooling sheets commonly used in the existing electronic devices are mostly assembled by adopting PET (polyethylene terephthalate) materials through a stacking process. Meanwhile, the common 50-micrometer-thickness PET film has higher water vapor transmittance due to the material characteristics, and can be slowly leaked in long-term use no matter the cooling working medium is based on water or non-water basis. The leakage can obviously reduce the heat radiation performance, is more likely to cause serious safety problems such as short circuit, corrosion and the like in consumer electronic equipment, and restricts the reliability and the service life of the whole liquid cooling system. Disclosure of Invention The invention mainly aims to provide a liquid cooling sheet structure and electronic equipment, which can improve heat conduction capacity and reduce water vapor transmittance at the same time, thereby improving the heat dissipation performance and long-term service performance of a liquid cooling module. In order to achieve the above object, the present invention provides a liquid cooling sheet structure, comprising: The support part is partially hollowed out to form a runner, and The two cover plates are respectively attached to two opposite sides of the supporting part along the first direction, the runner is sealed, at least one cover plate is formed into a composite layer structure, the composite layer structure comprises a metal material layer and a high polymer material layer, a part of the metal material layer is removed to form a first through hole, the first through hole and the high polymer material layer opposite to the first through hole form a window structure, and working media in the runner are exposed through the window structure. In an embodiment, two cover plates are both formed into the composite layer structure, and each cover plate is provided with the window structure. In an embodiment, the composite layer structure includes two metal material layers, the two metal material layers are disposed on two opposite sides of the polymer material layer, one metal material layer is provided with the first through hole, the other metal material layer is provided with a second through hole opposite to the first through hole, and the first through hole, the second through hole and the polymer material layer opposite to the first through hole form the window structure. In one embodiment, the area of the window structure is S1, and the area of the end face of the cover plate is S2, wherein S1/S2 is less than or equal to 1/4. In an embodiment, along the first direction, a ratio of a total thickness of the polymer material layer to a total thickness of the metal material layer is 1/3-1/2. In one embodiment, the support is formed as a piece of metallic material, wherein, The composite layer structure comprises a metal material layer and a polymer material layer, wherein the metal material layer is arranged on one side of the polymer material layer, which is away from the supporting part, or The composite layer structure comprises a metal material layer and a polymer material layer, wherein the polymer material layer is arranged on one side of the metal material layer, which is opposite to the supporting part, and the metal material layer is welded with the supporting part, or The composite layer structure comprises a high polymer material layer and two metal material layers, wherein the two metal material layers are respectively arranged on two opposite sides of the high polymer material layer, and the supporting part is welded with one metal material layer. In one embodiment, the supporting part is formed as a metal material piece, two opposite sides of the supporting part along the first direction are both connection sides, a connection area is formed on the connection sides, and a groove is formed in the connection area; The composite layer structure comprises a metal material layer and a polymer material layer, wherein the metal material layer is arranged on one side of the polymer material layer, which is opposite to the supporting part, the polymer material layer and the supporting part can be welded by laser, and the part of the cover plate corresponding to the connecting area is heated and melted into the groove so that a mortise-tenon joint structure is formed between the cover plate and the supporting part. In one embodiment, the metal material layer is an aluminum foil layer or a copper foil layer, and/or, The polymer material layer is at least one of PET, PPS, PP and LCP, and/or, And forming the first through hole by etching a part of the metal material layer. In one embodiment, two opposite sides of the supporting part along the first direction for