Hand warmer capable of storing heat by utilizing phase change

A technology of phase change heat storage and hand warmers, which is applied in the field of hand warmers using phase change heat storage, which can solve the problems of energy consumption of hand warmers, and achieve the effects of energy saving, long use time and good heat preservation effect
CN112353553AInactive Publication Date: 2021-02-12WUHAN INSTITUTE OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN INSTITUTE OF TECHNOLOGY
Publication Date
2021-02-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a hand warmer utilizing phase change heat storage, and belongs to the field of hand warmers. The product comprises a base, an electric heating structure is arranged in the upperend face in the base, a heating bag is installed on the electric heating structure, and an inorganic phase change energy storage material is contained in the heating bag; the inorganic phase change energy storage material is sodium acetate trihydrate, and Na2HPO4.12H2O accounting for 1% of the volume of the sodium acetate trihydrate and sodium carboxymethyl cellulose accounting for 2% of the volume of the sodium acetate trihydrate are added into the sodium acetate trihydrate; a heat conduction cover body covers the top of the base, and the inner end face makes contact with the upper end faceof the heating bag. According to the equipment, the inorganic phase change heat storage material sodium acetate trihydrate is used for storing energy, latent heat can be used for storing heat, the single-time use time of the product is longer, the heat preservation effect is better, and therefore the purpose of saving energy is achieved. Meanwhile, an external power supply is used for heating, andwhen a certain temperature is reached, a temperature controller automatically cuts off a circuit, so that the use safety is ensured.
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Description

Technical field

[0001] This application relates to the field of hand warmers, and in particular to a hand warmer using phase change for heat storage.Background technique

[0002] With the continuous improvement of people's living standards and needs, heating equipment in winter is becoming more and more diverse. In the past, traditional energy sources were mostly used for heating in winter. However, resources such as coal are not only non-renewable, but also cause huge pollution to the environment. Today, our pursuit of green water and green mountains is the golden mountain and silver mountain. Energy saving, emission reduction, and environmental protection need to start from every link and every equipment.

[0003] The hand warmers currently on the market release heat by heating water, which is what we commonly call hot water bottles. Unlike traditional hot water bottles, electric hot water bottles save the trouble of adding water. Just plug in the power and wait for 10 minutes to generate h...

Claims

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