Vapor chamber with two different fluids as working media and manufacturing method of vapor chamber

Abstract

The invention discloses a vapor chamber with two different fluids as working media and a manufacturing method thereof.The vapor chamber comprises a vapor chamber body, a cavity is formed in the vapor chamber body, the cavity in the vapor chamber body is filled with a fluid working medium A and a fluid working medium B, the density of the fluid working medium A is larger than that of the fluid working medium B, and the density of the fluid working medium B is larger than that of the fluid working medium B; the boiling point of the fluid working medium A is smaller than that of the fluid working medium B, the boiling point of the fluid working medium A is lower than the required working temperature of the vapor chamber main body, the boiling point of the fluid working medium B is higher than the required working temperature of the vapor chamber main body, and the fluid working medium A and the fluid working medium B are insoluble. According to the vapor chamber heat dissipation device, the vapor chamber is arranged in the vapor chamber, so that evaporation-condensation-backflow-evaporation circulation is formed in the vapor chamber, the purpose of diffusing heat flow on the surface of a heat source to a large-area condensation surface is achieved, the purpose of heat dissipation is finally achieved, a fluid medium is used for replacing a sintering capillary structure and a vacuumizing procedure, and the production cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of temperature chambers, in particular to a method for manufacturing a temperature chamber using two different fluids as working fluids. Background technique [0002] Existing vapor chamber products need to sinter the capillary structure inside the product, and after filling ultrapure water as the working medium, the inside of the product is evacuated to reduce the boiling point of the working medium in the product, so as to achieve the formation of evaporation-condensation-reflux- Evaporation cycle; this structure requires that the capillary structure can generate a strong enough capillary force to make the ultrapure water flow back, and the capillary force has a great influence on the product performance; at the same time, the capillary structure needs to be attached to the raw material of the soaking plate by high temperature sintering , increasing production costs. SUMMARY OF THE INVENTION [0003] (1...

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Problems solved by technology

[0002] Existing vapor chamber products need to sinter the capillary structure inside the product, and after filling ultra-pure water as the working medium, vacuum the inside of the product to reduce the boiling point of the working medium in the product and achieve evaporation-condensation-reflux- Evaporation cycle; this structure requires the capillary structure to be able to generate a strong enough capillary force to make the ultrapure water produce a reflux effect, and the size of the capillary force has a great influence on the product performance; at the same time, the capillary structure needs to be attached to the raw material of the vapor chamber through high-temperature sintering , increasing production costs

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