Electric blanket for indoor heating

Abstract

The invention discloses an electric blanket for indoor heating, and the blanket comprises a braided fabric, an organic hose, a working substance container and an electric heater; the organic hose is arranged in the braided fabric and is bent into a snake shape; a liquid working substance is filled in the organic hose; the working substance container is connected with both ends of the organic hose in a sealed way to form a closed space; and after being heated, the working substance flows in the closed space in a circulating way by conducting and transmitting heat in the pulse way. According to the electric blanket for indoor heating, the heat conversion efficiency is high, the production cost is low, heat is lost when the working substance flows due to the fact that the working substance flows in a circulating way by conducting and transmitting heat in a pulse way, so that different temperature needs of a human body along a height direction are met due to the characteristic, and the heat dissipation can be increased or decreased by adjusting the distribution density of an organic hose body; and in addition, compared with the heat supply structure of a traditional electric heating wire, according to the electric blanket for indoor heating, due to the fact that the working substance has a certain weight, the blanket is not easily shifted during use.

Description

technical field [0001] The invention relates to the field of electric heating devices, in particular to an electric blanket for indoor heating. Background technique [0002] At present, indoor heating, such as northern Europe, North America and northern China, has a heating period of 5-7 months in winter. Centralized water or steam heating is expensive due to the high maintenance cost of underground pipelines, and there are unoccupied or temporarily unoccupied rooms. Heat supply is wasteful, and the heating pipes need to be heated regularly, otherwise the underground heating pipes are easy to freeze and block; especially in northern Europe, since natural gas and oil need to be imported, if this kind of energy is used by every household for heating and heating, One is that the combustion efficiency is too low, and the other is that a large amount of greenhouse gases are produced. Therefore, this type of energy is converted by power generation and then used by each household t...

AI Technical Summary

Problems solved by technology

[0003] However, the current electric heating devices are generally direct heating, and most of them use electric heating quartz tubes to dissipate heat or natural convection heat; or use electric heating tubes to directly insert into the heat conduction oil tank or water tank of the heating device, and still rely on radiation or natural convection for heat dissipation. It is extremely localized; or it is geothermal heating, that is, arranging heat pipes under the indoor floor tiles or wooden floors. This type of method requires a large investment, part of the heat is absorbed by the wall, and the thermal efficiency is low; All electric blankets use electric heating wires for heating, which often have the following problems: the temperature requirements of the human body along its height direction are different. Generally, the parts below the buttocks need to be heated, especially the feet, while the parts above the buttocks do not want to be heated. Too hot, especially the head. However, the electric heating wire heating structure can only change the temperature of the entire circuit by adjusting the magnitude of the current because the propagation speed of electricity is close to the speed of light. The temperature in the entire circuit is uniform, which cannot meet the needs of differences. Users feel that the local temperature is too high and dry; at the same time, this type of electric heating device has low thermal efficiency and high power consumption

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