Solar heat-storage-type hand warmer utilizing ferroferric oxide magnetofluid

Abstract

The invention belongs to the field of heating equipment for daily use, and particularly relates to a solar heat-storage-type hand warmer utilizing ferroferric oxide magnetofluid. Edges of the front surface and the back surface of the hand warmer are in sealed connection to form a cavity, a separation face is sandwiched between the front surface and the back surface and divides the cavity into an upper chamber and a lower chamber which are an upper layer and a heat storage layer respectively, the upper layer formed by the front surface and the separation face is filled with the ferroferric oxide magnetofluid, and the heat storage layer formed by the back surface and the separation face is filled with a phase-change heat storage material of nanoparticles. Solar energy is directly utilized as an energy supply, and the solar heat-storage-type hand warmer can be used only by placing the same under sunlight by multiple minutes while charging is not needed, so that the problem that an existing hand warmer is inconvenient in use during outgoing, prone to causing accidents due to charging and the like can be solved, and potential safety hazards are eliminated while energy conservation and environment protection are realized. The solar heat-storage-type hand warmer is long in heating duration, can be reused for a long time without replacing an internal medium and has certain magnetic healthcare effect on the human body.

Description

technical field [0001] The invention belongs to the field of daily heating equipment, in particular to a solar heat storage type hand warmer using ferroferrofluid. Background technique [0002] Most of the hand warmers on the market now generate heat by filling hot water or turning on electricity. The main disadvantage is that the duration of heating is not enough, especially the duration of the high temperature state is short. Therefore, when people use it in cold winter nights, they often do not fall asleep. I feel that the temperature of the hand warmer is not ideal enough. In addition, it is easy to burn when pouring hot water, and in order to prolong the duration of heating, the consumption of hot water has to be increased, and new hot water must be replaced every time it is used, resulting in a waste of water resources. However, hand warmers in the form of electric heating depend on the power supply. In classrooms or offices where there are many users, the power socke...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the short duration of the high temperature state of ordinary hand warmers, the present invention provides a solar heat storage type hand warmer using ferroferromagnetic fluid from the perspective of energy saving and environmental protection, which effectively solves the problem of using hand warmers. limitations and security issues

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