New energy automobile heat pump air conditioning system and control method

A new energy vehicle, heat pump air-conditioning technology, applied to vehicle parts, air handling equipment, heating/cooling equipment, etc., can solve the problems of complex air-conditioning system, unstable system operation, and ineffective heating effect of pure heat pump system, etc. The effect of normal operation

Pending Publication Date: 2018-11-13
泰铂(上海)环保科技股份有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, new energy electric vehicles generally use heat pump air-conditioning systems, and R134a refrigerant is generally used as the cooling medium in the air-conditioning system. However, when the temperature outside the cab is below -15°C, the heat absorption effect of R134a refrigerant is not good, and the air conditioner uses a pure heat pump. The heating effect of the system is not obvious
At present, a solution is to add a water heating system (WPTC) to the air conditioning system, and the independent water temperature circuit heated by the WPTC provides a heat source for the entire system, but this method makes the entire air conditioning system too complicated and the system runs unstable

Method used

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  • New energy automobile heat pump air conditioning system and control method
  • New energy automobile heat pump air conditioning system and control method

Examples

Experimental program
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Embodiment 1

[0048] This embodiment relates to a heat pump air-conditioning system for new energy vehicles, and its system component connection diagram is shown in the attached figure 1 As shown, including cooling module, heat collecting module, indoor heat exchanger, outdoor heat exchanger and other components;

[0049] in,

[0050] --The other components include gas-liquid separator, compressor, two-phase stop valve A, two-phase stop valve B, stop-expansion valve A, three-phase stop valve A, three-phase stop valve B, stop-expansion valve C, Two-phase shut-off valve C; adding three-phase shut-off valve A can ensure that when the outdoor heat exchanger cannot work normally due to low temperature, the system can still skip the outdoor heat exchanger and continue to work with the heat of the water tank, which can be better Ensure the normal operation of the whole system; add two-phase cut-off valve C to achieve the purpose of indoor dehumidification, solve the problem of insufficient heatin...

Embodiment 2

[0075] This embodiment relates to a heat pump air-conditioning system for a new energy vehicle, and the system is the same as Embodiment 1.

[0076] This embodiment provides a control method for a heat pump air-conditioning system of a new energy vehicle, the schematic flow chart of which is as follows figure 2 shown, including the following steps:

[0077] Step 1, the car is started, and the heat pump air-conditioning system is running;

[0078] Step 2, the temperature sensor detects that the ambient temperature is less than or equal to the temperature setting value, and transmits the data to the air conditioner control panel;

[0079] Step 3, the air conditioner control panel controls the air heater to start working to provide heat to the room;

[0080] Step 4, the R134a refrigerant in the heat exchanger starts to run, and the heat pump air-conditioning system starts a normal heating mode.

[0081] Further, the temperature setting value is -15°C.

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Abstract

The invention provides a new energy automobile heat pump air conditioning system which comprises a cooling module, a heat collection module, an indoor heat exchanger, an outdoor heat exchanger and other components. An air heater is arranged in the indoor heat exchanger, the indoor heat exchanger is arranged in an automobile compartment, an air conditioning control panel controls the air heater tooperate, and the air heater is used in cooperation with a temperature sensor. The invention further provides a control method of the new energy automobile heat pump air conditioning system. The air heater is additionally arranged in the heat pump air conditioning system, when the temperature outside a cab is smaller than or equal to a set value, the air heater and a whole heat pump system work atthe same time, the air heater can directly supply heat indoors and can increase the operation temperature of an R134a refrigerating agent, so that the R134a refrigerating agent reaches the proper worktemperature, and the heating mode of the heat pump air conditioning system can be normally started.

Description

technical field [0001] The invention relates to the field of air conditioners for new energy vehicles, in particular to a heat pump air conditioner system and a control method for new energy vehicles. Background technique [0002] At present, new energy electric vehicles generally use heat pump air-conditioning systems, and R134a refrigerant is generally used as the cooling medium in the air-conditioning system. However, when the temperature outside the cab is below -15°C, the heat absorption effect of R134a refrigerant is not good, and the air conditioner uses a pure heat pump. The heating effect of the system is not obvious. At present, a solution is to add a water heating system (WPTC) to the air conditioning system, and the independent water temperature circuit heated by the WPTC provides a heat source for the entire system, but this method makes the entire air conditioning system too complicated and the system runs unstable. Contents of the invention [0003] In view...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00
CPCB60H1/00385B60H1/00735B60H1/00878
Inventor 陶林胡太宝
Owner 泰铂(上海)环保科技股份有限公司
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