Water absorption metal plate, radiating method and radiator

Abstract

The invention discloses a water absorption metal plate. The water absorption metal plate at least comprises two metal plates which are overlapped with each other, a contact area and a gap area are arranged between the metal plates, and tiny open capillary gaps are formed in the gap area between the metal plates. The capillary gaps can enable the metal plates to be of water absorption capacity by using the surface tension of water, and the radiating effect can be improved obviously by utilizing the evaporation latent heat of water efficiently. The water absorption metal plate is simple in structure, easy to manufacture and convenient for post processing, and due to the fact that the manufacturing cost is low, the cost performance of whole water absorption metal plate is higher than that ofan ordinary cooling fin, and the water absorption metal plate is easy for popularization.

Description

technical field [0001] The invention relates to the field of metal materials and physical heat dissipation, in particular to a water-absorbing metal sheet, a heat dissipation method and a radiator. Background technique [0002] Heat sinks are widely used in radiators or heat exchangers in electrical and machinery. The current technology is metal heat sinks combined with fans to take away the heat from the surface of heat sinks. The surface of heat sinks is always dry; some people think of using water The latent heat of evaporation can be used to obtain a better heat dissipation effect. For example, spraying water directly on the radiator can effectively improve the heat dissipation effect. However, since the general metal sheet is only hydrophilic and has no water absorption, it cannot stay after spraying water, and it will They flow away immediately, or are easily blown off by the wind, and the utilization rate of water is low, so they have not entered the practical stage. ...

AI Technical Summary

Problems solved by technology

[0002] Heat sinks are widely used in radiators or heat exchangers in electrical and machinery. The current technology is metal heat sinks combined with fans to take away the heat from the surface of heat sinks. The surface of heat sinks is always dry; some people think of using water The latent heat of evaporation can be used to obtain a better heat dissipation effect. For example, spraying water directly on the radiator can effectively improve the heat dissipation effect. However, since the general metal sheet is only hydrophilic and has no water absorption, it cannot stay after spraying water, and it will It flows away immediately, or is easily blown off by the wind, and the utilization rate of water is low, so it has not entered the practical stage

[0003] There is also a patent ZL2014104690078 "A Composite Structure Wet Film Surface Cooler" which discloses a fin structure that can efficiently utilize water, but uses a three-layer composite structure of independent metal sheet + water-absorbing fiber layer + metal layer, and the two-layer metal sheet is Separated, there is no direct contact between them, they must be fixed by expansion tubes, the mechanical strength is low, and the composite structure is easy to separate; at the same time, the three-layer composite structure fixed by expansion tubes is loose and cannot be tightly attached, and the two layers of metal sheets and The fiber layer in the middle will increase the thickness of the surface cooler; and the manufacturing process is complicated, the manufacturing process of the existing surface cooler cannot be realized, and it cannot be used in radiators of other structures, such as the tube-strip heat exchange in automobile air conditioners device

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