A kind of cooling device and terminal electronic equipment

Abstract

The embodiment of the invention provides a heat dissipation device and terminal electronic equipment, and relates to the technical field of heat dissipation; the heat dissipation device is used for dissipating heat of a heating source of the terminal electronic equipment, and the heat dissipation device comprises a hydrated salt phase change material and a refrigeration unit which is in contact with the hydrated salt phase change material and refrigerates the hydrated salt phase change material; and a heat transfer unit is included and used for conducting heat of the heating source to the hydrated salt phase change material.

Description

technical field [0001] The present application relates to the technical field of heat dissipation, in particular to a heat dissipation device and terminal electronic equipment. Background technique [0002] Today's terminal electronic equipment is rapidly developing towards high power and thinner, and thermal design has become one of the bottlenecks restricting its development. While improving the steady-state heat dissipation capability of terminal electronic equipment, phase change materials (Phase Change Material, PCM) are also applied to the thermal management of electronic equipment by taking advantage of the intermittent operation or intermittent high power consumption of electronic equipment. The technical idea is: when the terminal electronic equipment works under short-term high power consumption, use phase change materials to store excess heat; when the terminal electronic equipment reduces to a lower stable power consumption, store it in the phase change material ...

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Problems solved by technology

[0004] Since the phase change material 004 can be made of waxy phase change material or hydrated salt phase change material, the energy storage density of the waxy phase change material is small, and the maximum heat storage energy is only about 105J / cc, so that the enthalpy of the entire PCM module 003 Compared with waxy phase change materials, hydrated salt phase change materials have higher supercooling degree (15℃~20℃), that is, hydrated salt phase change materials have higher After melting, the salt phase change material needs to be cooled to a temperature 15°C to 20°C lower than the melting point before it can be used again, so it cannot be solidified at room temperature to store heat again, and thus cannot be reused at room temperature

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