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Heating device of electric automobile

A technology for heating devices and electric vehicles, applied in vehicle parts, transportation and packaging, heating/cooling equipment, etc., can solve the problems of low heating power, low heat exchange efficiency, and inability to adjust temperature, and achieve development costs. Low energy consumption, reducing the effect of external interference

Active Publication Date: 2010-12-15
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The heat transfer efficiency is not high, Q=cmΔt, the specific heat of air is 1.06x10 3 , the specific heat of water is 4.2x10 3 , under the same m and Δt, water can release much more heat than air
[0005] 2. The heating power of traditional electric vehicles is not high. Electric vehicles are powered by electricity, and the voltage of their electrical equipment is 12V. With a 2000W electric heater, its current will reach 167A. In order to ensure such a large current, it is necessary to select enough Thick wires, so the electric heating of the entire electric vehicle will not be too large
[0006] 3. When the electric vehicle is heating, the air collected from the outside cannot form a loop, and the adjustment of its temperature cannot be realized

Method used

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  • Heating device of electric automobile
  • Heating device of electric automobile
  • Heating device of electric automobile

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] see figure 1 , a heating device for an electric vehicle, comprising an expansion tank 1, the expansion tank 1 is connected with inlets and outlets 2 and 3, the inlet pipe 2 is connected with an electric heater 5 through a water pump 4, and the outlet pipe 3 is connected with the electric heater 5 through a water pump 4.

[0027] The principle of the expansion tank is the same as that of the traditional internal combustion engine. The function of the expansion tank is to add water and exhaust the circulating water, and a commonly used expansion tank can be used. The water pump is preferably an electronic water pump. The selection of an electronic water pump is beneficial to control the opening of the water pump through the circui...

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PUM

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Abstract

The invention discloses a heating device of an electric automobile, which comprises an expansion tank, wherein an outlet pipe of the expansion tank is connected with an electric heater by utilizing a water pump; an inlet pipe of the expansion tank is connected with the electric heater by utilizing a water pump; the water pumps are electronic water pumps; the electric heater comprises a heating core body; at least one heating rod is arranged in the heating core body; the heating rod is connected with a power supply of the entire automobile; an aluminum pipe is arranged on the external end of a wire of the heating rod; the aluminum pipe is utilized to fix the heating core body; injection molding waste is arranged between the aluminum pipe and the wire; the aluminum pipe is welded in the heating core body; and a temperature sensor is arranged in the heating core body. The heating device of an electric automobile has the advantages of reasonable design, low cost and energy consumption reduction.

Description

technical field [0001] The invention relates to an automobile air-conditioning and heating system, in particular to an electric automobile heating device. Background technique [0002] The traditional internal combustion engine uses the cooling water of the engine to provide heat source for air conditioning and heating. With the development of new energy, electric vehicles will become the mainstream. There is no internal combustion engine in electric vehicles, and there is no cooling water as a heat source. Therefore, cooling water cannot be used for heating in winter. The heating of electric vehicles has become an obstacle to improving comfort. [0003] Traditional electric vehicle heating uses the method of heating air, which is to use electric energy to heat a resistor, and the heat on the surface of the resistor is taken away by wind flow. There are several disadvantages in doing so: [0004] 1. The heat transfer efficiency is not high, Q=cmΔt, the specific heat of air ...

Claims

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Application Information

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IPC IPC(8): B60H1/22
Inventor 陈振武张根云
Owner CHERY AUTOMOBILE CO LTD
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