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Electric automobile heat pump air conditioning system driven by variable frequency motor

A frequency conversion motor, heat pump air-conditioning technology, applied in air-conditioning systems, heating and ventilation control systems, heating and ventilation safety systems, etc., can solve the problem of high energy consumption for heating, and achieve high energy efficiency, convenient control, and simple structure.

Inactive Publication Date: 2013-03-20
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the disadvantage of high energy consumption for heating electric vehicles in winter, the present invention proposes a heat pump air-conditioning system driven by a frequency conversion motor using a vapor compression cycle to provide a comfortable environment for drivers and passengers

Method used

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  • Electric automobile heat pump air conditioning system driven by variable frequency motor
  • Electric automobile heat pump air conditioning system driven by variable frequency motor
  • Electric automobile heat pump air conditioning system driven by variable frequency motor

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Embodiment Construction

[0024] In order to better illustrate the purpose and advantages of the present invention, the content of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] In the electric vehicle heat pump air-conditioning system of this embodiment, a piston variable displacement compressor is used, a micro-channel heat exchanger is used outside the vehicle, and a tube-fin heat exchanger is used inside the vehicle. In the hot mode, two different types of expansion valves are used respectively, and copper pipes and air-conditioning hoses are used to connect each part.

[0026] The cooling / heating function of this system is realized through the following measures:

[0027]Vapor compression cycle heat pump air conditioning system driven by frequency conversion motor, including 1-compressor, 2-pressure sensor, 3-four-way reversing valve, 4-vehicle outdoor heat exchanger fan, 5-vehicle outdoor heat exchanger, 6- The first ...

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Abstract

The invention relates to an electric automobile heat pump air conditioning system driven by a variable frequency motor and belongs to the technical field of air conditionings and vehicles. The electric automobile heat pump air conditioning system disclosed by the invention can simultaneously implement heating and refrigerating functions and can effectively utilize part of heat in the environment in a heating mode; compared with a conventional electric heating mode, the electric automobile heat pump air conditioning system has the characteristics of high energy efficiency, no potential safety hazard and the like; the electric automobile heat pump air conditioning system has a simple structure, is low in cost, is convenient to control in the using process and has is low in energy consumption; and meanwhile, the rotating speeds of the variable frequency motor and a vehicle indoor / outdoor heat exchanger fan can be regulated at any time according to a signal acquired by a vehicle indoor / outdoor temperature sensor, so that the system always works under the optimal working condition.

Description

technical field [0001] The invention relates to a heat pump air-conditioning system for an electric vehicle driven by a variable-frequency motor, and belongs to the fields of air-conditioning technology and automobile technology. Background technique [0002] The automotive air conditioning system powered by an internal combustion engine uses a vapor compression cycle for cooling in summer, and uses engine waste heat for heating in winter. However, there is less waste heat available in electric vehicles, which cannot meet the heating requirements in winter. Under the existing technical conditions, if the traditional electric heating method is used to heat the interior environment of the electric vehicle, the mileage will be seriously affected due to the high energy consumption. Therefore, it is not conducive to the application and promotion of electric vehicles. Contents of the invention [0003] Aiming at the disadvantage of high heating energy consumption of electric ve...

Claims

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Application Information

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IPC IPC(8): F24F5/00F24F11/02F25B41/06
CPCY02B30/72Y02B30/70
Inventor 魏名山彭发展李丽黄海圣张虹
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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