Blade electric vehicle air conditioner system utilizing battery for heat dissipation and refrigerating and heating method of blade electric vehicle air conditioner system
A pure electric vehicle and air-conditioning system technology, which is applied in the heating part of the air conditioner, can solve the problems of reduced cruising range, internal leakage of refrigerant, and high energy consumption of PTC resistance heating, etc., so as to improve the cruising range, enhance the use performance, and avoid The effect of electric heating
Active Publication Date: 2017-02-22
浙江银帆机械有限公司
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Problems solved by technology
At present, many automobile manufacturers use special heating devices to realize the warm air function. Most of them use PTC heating resistors for heating. However, PTC resistors convert electrical energy into heat energy, and the heating efficiency is lower than 1, and PTC resistor heating consumes a lot of energy. , relevant data show that simply relying on PTC heating to realize the warm air function will reduce the cruising range of pure electric vehicles by 50%
For those who adopt the ordinary heat pump air conditioning system structure, it is necessary to develop a valve that allows two-way flow, that is, a four-way reversing valve. The performance of the four-way reversing valve is very unstable when it is running on a car. In place and other problems, which will easily lead to the cross-flow problem caused by the internal leakage of refrigerant in the air-conditioning system
And under heat pump conditions, when the system changes from defrosting mode to heating mode, the condensed water on the heat exchanger in the air duct will evaporate rapidly, and frost will form on the windshield, which will affect the safety of driving
Secondly, during the normal operation of pure electric vehicles, the lithium-ion power battery pack will generate a lot of heat when the working current increases with charging and discharging, climbing, etc. If the heat cannot be dissipated in time, the internal temperature of the battery pack will continue to rise And uneven temperature distribution, which affects the performance, cycle life and safety of the battery
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[0029] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in conjunction with the accompanying drawings and embodiments.
[0030] Such as figure 1 As shown, the pure electric vehicle air conditioning system using battery heat dissipation includes fan 6, auxiliary heater 8, refrigerant circulation refrigeration system and coolant circulation heating system. The refrigerant cycle refrigeration system is used to cool the air in the car under high temperature and normal temperature refrigeration conditions; the coolant circulation heating system is used to cool the air generated by the battery pack under low temperature and normal temperature The heat is transferred to the vents to circulate the heated air inside the car. The cooling liquid circulation heating system is also an intelligent temperature management system for the battery pack. Refrigerant circul...
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The invention discloses a blade electric vehicle air conditioner system utilizing a battery for heat dissipation and a refrigerating and heating method of the blade electric vehicle air conditioner system. The conditionality of electric vehicle air conditioners on electric vehicle development is more and more obvious. The blade electric vehicle air conditioner system utilizing the battery for heat dissipation comprises a draught fan, an auxiliary heater, a refrigerant circulating refrigerating system and a cooling liquid circulating heating system. The refrigerant circulating refrigerating system comprises a compressor, an outdoor condenser, a refrigerant liquid storage tank, an expansion valve and an indoor evaporator. The cooling liquid circulating heating system comprises a heat collecting and dissipating device, a cooling liquid storage tank, a battery heat dissipating and collecting system and an intelligent temperature measuring sensor. A large amount of heat generated by a lithium ion battery pack is converted to be used for heating of the air conditioner system, more energy is saved, and the cruising journey is longer; and no four-way reversing valve is adopted, the structure is simple and reliable, and cost is reduced.
Description
technical field [0001] The invention belongs to the technical field of heating and ventilation, and relates to an air-conditioning system of a pure electric vehicle using a battery to dissipate heat and a cooling and heating method thereof, in particular to a heating part of the air-conditioning. Background technique [0002] With the development of electric vehicle technology, the restriction of electric vehicle air conditioners to its development is becoming more and more obvious. The reason: due to the lack of internal combustion engines, winter heating is greatly restricted. At present, many automobile manufacturers use special heating devices to realize the warm air function. Most of them use PTC heating resistors for heating. However, PTC resistors convert electrical energy into heat energy, and the heating efficiency is lower than 1, and PTC resistor heating consumes a lot of energy. According to relevant data, simply relying on PTC heating to realize the warm air fun...
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IPC IPC(8): F25B27/00B60H1/00
CPCB60H1/143F25B27/00
Inventor陈堂禄孟庆华
Owner浙江银帆机械有限公司