CN211335511U - Air-supplementing enthalpy-increasing heat pump air conditioning system with motor battery thermal management - Google Patents
Air-supplementing enthalpy-increasing heat pump air conditioning system with motor battery thermal management Download PDFInfo
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- CN211335511U CN211335511U CN201922033472.8U CN201922033472U CN211335511U CN 211335511 U CN211335511 U CN 211335511U CN 201922033472 U CN201922033472 U CN 201922033472U CN 211335511 U CN211335511 U CN 211335511U
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Abstract
The utility model provides an tonifying qi enthalpy-increasing heat pump air conditioning system with motor battery heat management, include: the compressor, the gas-liquid separator and the outdoor heat exchanger are communicated; the battery thermal management module is used for exchanging heat with the battery and is communicated with the compressor; the motor heat management module is used for exchanging heat with the motor and is communicated with the compressor; the first cooler is in heat exchange connection with a first cold plate and is communicated with the compressor; a vapor-supplementing and enthalpy-increasing module; the air-supplying enthalpy-increasing module is communicated with the outdoor heat exchanger and is communicated with the compressor. The utility model discloses an aspect can satisfy electric automobile normal heating in low temperature environment. On the other hand, the battery thermal management module and the motor thermal management module are used in the system, so that the energy utilization efficiency can be improved, and the normal operation of the electric automobile can be ensured.
Description
Technical Field
The utility model relates to an tonifying qi enthalpy-increasing heat pump air conditioning system with motor battery thermal management.
Background
In recent years, the concept of energy conservation and environmental protection is deeply popular, and the related technology of energy conservation and environmental protection is embodied in the aspect of life. The structure of energy sources has been changed today, and the use of petroleum and coal as conventional energy sources is influenced by reserves and environmental pollution, the specific gravity is continuously decreasing, and the total amount and the occupation ratio of electric energy are continuously increasing. Energy consumption in the traffic field occupies an important position in the whole energy consumption field, with continuous popularization and application of new energy automobiles, the vehicle holding amount is continuously increased, the proportion of energy consumption in the traffic field is further increased, and the development of the energy-saving technology of the new energy automobiles draws more and more attention of people.
The heat pump has the problems of deteriorated heating performance and reduced operation reliability in a low-temperature environment in winter, and the air-supplying and enthalpy-increasing technology is proved to be an effective way for improving the performance of the heat pump in the low-temperature environment. When the outdoor air temperature is lowered to be very low, the air suction specific volume of the refrigerant is increased, the air suction quantity is sharply reduced, and the heating quantity can not meet the heating requirement. Meanwhile, the heating capacity and COP of the system continuously decrease, the exhaust temperature greatly increases, and even at an extremely low temperature, the compression is difficult to maintain normal operation. The heat pump is initially designed, the economical efficiency and the reliability of the heat pump in operation under common working conditions are considered, the operation performance under extreme working conditions is considered, and the vapor-supplementing and enthalpy-increasing technology provides possibility for the design requirement.
At the present stage, when the technologies of a compressor and other system components have not made a major breakthrough, the research and application of the gas-supplementing and enthalpy-increasing technology are greatly beneficial to widening the application range of the air source heat pump and improving the performance and reliability of the system. Especially for pure electric vehicles, the energy consumption of the heat pump directly influences the endurance mileage, and the development of the automobile heat pump air conditioning technology related to the comfort requirement of people is also very important when the new energy automobile is popularized in the current stage. The electric vehicle is driven by electric energy provided by a battery, and meanwhile, battery thermal management technology is another challenge of a thermal management system of the electric vehicle. The battery thermal management technology is used for keeping a battery pack of the electric automobile to work in a proper temperature range, so that the reliability of electric energy supplied by the battery pack is ensured, and the normal operation of the electric automobile is maintained. In the prior art, the battery thermal management technology mainly applies air cooling, liquid cooling, cooling by using a phase change cooling material and the like, and has a complex structure and high energy consumption.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is in order to overcome prior art and can't compromise the refrigeration that satisfies passenger cabin and battery package and motor simultaneously, the demand that heats, ensure electric automobile's safe and reliable operation's defect, provide an tonifying qi enthalpy-increasing heat pump air conditioning system with electric motor battery thermal management.
The utility model discloses an above-mentioned technical problem is solved through following technical scheme:
the utility model provides an air supplement enthalpy-increasing heat pump air conditioning system with motor battery thermal management which characterized in that, it includes:
the compressor, the gas-liquid separator and the outdoor heat exchanger are communicated;
the battery thermal management module is used for exchanging heat with a battery and is communicated with the compressor;
the motor heat management module is used for exchanging heat with a motor and is communicated with the compressor;
the first cooler is in heat exchange connection with a first cold plate and is communicated with the compressor;
a vapor-supplementing and enthalpy-increasing module; the air-supplying enthalpy-increasing module is communicated with the outdoor heat exchanger and the compressor.
The air-conditioning heat pump system, the battery heat management system and the motor heat management system are integrated, so that the heat management cost can be effectively reduced, and the energy consumption is saved. The scheme utilizes the air-supplying enthalpy-increasing air-conditioning heat pump system with the functions of battery heat management and motor heat management of the secondary loop. On one hand, the air-supplying and enthalpy-increasing module is used, and normal heating of the electric automobile in a low-temperature environment can be met. On the other hand, the battery thermal management module and the motor thermal management module are used in the system, so that the energy utilization efficiency can be improved, and the normal operation of the electric automobile can be ensured. The refrigerating and heating requirements of the passenger compartment, the battery pack and the motor can be met simultaneously.
Preferably, the air-supplying enthalpy-increasing heat pump air conditioning system with the heat management of the motor battery is switched between a cooling mode and a heating mode, wherein,
in a refrigeration mode, after the compressor is communicated with the outdoor heat exchanger and the first thermal expansion valve, one branch is communicated with the first cooler, the other branch is communicated with the first expansion valve, the battery thermal management module and the motor thermal management module, and the two branches are communicated back to the compressor through a gas-liquid separator;
in the heating mode, after the compressor is sequentially communicated with the first cooler, the air-supplying and enthalpy-increasing module and the second expansion valve, one branch is sequentially communicated with the first thermal expansion valve and the outdoor heat exchanger, the other branch is communicated with the battery thermal management module and the motor thermal management module, and the two branches are communicated back to the compressor through a gas-liquid separator.
Preferably, the air-supplying enthalpy-increasing module comprises an economizer and a third expansion valve which are communicated, wherein in the heating mode, the first cooler is communicated with the cooler, and the communication between the first cooler and the third expansion valve is closed.
Preferably, the first expansion valve, the second expansion valve and the third expansion valve are all electronic expansion valves.
Preferably, the motor thermal management module comprises a second cooler and a second cold plate, and the second cooler and the second cold plate are circularly connected.
Preferably, a circulation pump is arranged between the second cooler and the second cold plate.
Preferably, the battery thermal management module comprises a third cooler and a third cold plate, and the third cooler and the third cold plate are circularly connected.
Preferably, a circulating pump is arranged between the third cooler and the third cold plate.
Preferably, the first cooler, a PTC heater and the first cold plate are cyclically connected. The PTC heater is used, so that the electric automobile can still meet the heating requirement under the limit working condition.
Preferably, the first cooler, a PTC heater and the first cold plate are connected in circulation by a circulation pump.
The utility model discloses an actively advance the effect and lie in, the utility model provides an utilize tonifying qi of secondary circuit to increase enthalpy electric automobile air conditioner heat pump system, increase enthalpy module, battery thermal management module and motor thermal management module including the tonifying qi, use the tonifying qi to increase the enthalpy module on the one hand, can satisfy electric automobile normal heating in low temperature environment. On the other hand, the battery thermal management module and the motor thermal management module are used in the system, so that the energy utilization efficiency can be improved, and the normal operation of the electric automobile can be ensured.
Drawings
Fig. 1 is a schematic view of the overall structure of the air-supplying enthalpy-increasing heat pump air conditioning system with the motor battery thermal management according to the preferred embodiment of the present invention.
Fig. 2 is a schematic view of a cooling mode of the air-supplying enthalpy-increasing heat pump air conditioning system with the motor battery thermal management according to the preferred embodiment of the present invention.
Fig. 3 is a schematic diagram of the air-supplying enthalpy-increasing module not working in the heating mode of the air-supplying enthalpy-increasing heat pump air conditioning system with the motor battery heat management according to the preferred embodiment of the present invention.
Fig. 4 is a schematic view of the air-supplying enthalpy-increasing module in the heating mode of the air-supplying enthalpy-increasing heat pump air conditioning system with the motor battery heat management according to the preferred embodiment of the present invention.
Detailed Description
The present invention will be more clearly and completely described below with reference to the accompanying drawings.
As shown in fig. 1-4, the utility model discloses an air-make-up enthalpy-increasing heat pump air-conditioning system with heat management of motor battery, the air-conditioning heat pump system includes compressor 1, outdoor heat exchanger 2, vapour and liquid separator, first cooler 4, second cooler 7, third cooler 8, circulating pump 23, PTC heater 24, first thermal expansion valve 18, first expansion valve 19, second expansion valve 15, third expansion valve 14, first solenoid valve 16, second solenoid valve 20, third solenoid valve 17, valve 11, fourth solenoid valve 12, fifth solenoid valve 13, outdoor heat exchanger fan 10, air-blower 25 and temperature sensor, pressure sensor; the vapor-supplementing enthalpy-increasing module I comprises a third expansion valve 14 and an economizer 5; the battery thermal management module II comprises a second cold plate 6, a circulating pump 21 and a second cooler 7; the electric machine thermal management module III comprises a third cold plate 9, a circulation pump 22 and a third heat exchanger 8.
As shown in fig. 1 to 4, the motor thermal management module II includes a second cooler 7 and a second cold plate 6, and the second cooler 7 and the second cold plate 6 are connected in a circulating manner. A circulation pump 21 is provided between the second cooler 7 and the second cold plate 6. The battery thermal management module III comprises a third cooler 8 and a third cold plate 9, and the third cooler 8 and the third cold plate 9 are circularly connected. A circulation pump 22 is provided between the third cooler 8 and the third cold plate 9.
The first cooler 4, a PTC heater 24 and the first cold plate 3 are connected in circulation by a circulation pump 23.
As shown in fig. 1, the present embodiment includes a compressor 1, a gas-liquid separator and an outdoor heat exchanger 2, and the compressor 1, the gas-liquid separator and the outdoor heat exchanger 2 are communicated with each other. The air supplementing and enthalpy increasing heat pump air conditioning system with the motor battery heat management function further comprises a battery heat management module III, the battery heat management module III is used for exchanging heat with a battery, and the battery heat management module III is communicated with the compressor 1. The air supplementing and enthalpy increasing heat pump air conditioning system with the motor battery heat management function further comprises a motor heat management module II, the motor heat management module II is used for exchanging heat with a motor, and the motor heat management module II is communicated with the compressor 1. The air supplementing and enthalpy increasing heat pump air conditioning system with the motor battery thermal management function further comprises a first cooler 4, wherein the first cooler 4 is in heat exchange connection with a first cold plate 3 and is communicated with the compressor 1. The device also comprises a gas-supplementing enthalpy-increasing module I; the air-supplying enthalpy-increasing module I is communicated with the outdoor heat exchanger 2 and is communicated with the compressor 1.
The air-conditioning heat pump system, the battery heat management system and the motor heat management system are integrated, so that the heat management cost can be effectively reduced, and the energy consumption is saved. The scheme utilizes the air-supplying enthalpy-increasing air-conditioning heat pump system with the functions of battery heat management and motor heat management of the secondary loop. On one hand, the air-supplying and enthalpy-increasing module I is used, and normal heating of the electric automobile in a low-temperature environment can be met. On the other hand, the battery thermal management module III and the motor thermal management module II are used in the system, so that the energy utilization efficiency can be improved, and the normal operation of the electric automobile is ensured. The refrigerating and heating requirements of the passenger compartment, the battery pack and the motor can be met simultaneously.
In the embodiment, the air-supplying enthalpy-increasing heat pump air conditioning system with the motor battery thermal management is switched between a refrigeration mode and a heating mode, wherein,
as shown in fig. 2, in the cooling mode, after the compressor 1 communicates with the outdoor heat exchanger 2 and the first thermal expansion valve 18, one branch communicates with the first cooler 4, the other branch communicates with a first expansion valve 19, the battery thermal management module III and the motor thermal management module II, and the two branches communicate with the compressor 1 through the gas-liquid separator.
High-temperature and high-pressure refrigerant flows out of the compressor 1 and enters the outdoor heat exchanger 2 through a refrigerant pipeline for condensation heat exchange, refrigerant liquid flows out of the outdoor heat exchanger 2, a part of the refrigerant liquid is throttled by the first thermostatic expansion valve 18 and enters the first cooler 4, the first cooler 4 exchanges heat with the first cold plate 3, and then exchanges heat with the passenger compartment, so that the refrigeration purpose is achieved; the other part enters a battery thermal management module III and a motor thermal management module II after being throttled by a first electronic expansion valve 19, the throttled refrigerant exchanges heat with cooling liquid through a cooler, and the cooling liquid exchanges heat with a battery pack or a motor through a cold plate, so that the aim of battery thermal management or motor thermal management is fulfilled; then, the refrigerant enters the compressor 1 through the gas-liquid separator to complete a refrigeration cycle.
In this embodiment, the air-make-up enthalpy increasing module I includes the economizer 5 and the third expansion valve 14 which are communicated, wherein in the heating mode, the first cooler 4 is communicated with the cooler, and the communication between the first cooler 4 and the third expansion valve 14 is closed.
As shown in fig. 3 and 4, in the heating mode, after the compressor 1 is sequentially communicated with the first cooler 4, the air-supply enthalpy-increasing module I and the second expansion valve 15, one branch is sequentially communicated with the first thermal expansion valve 18 and the outdoor heat exchanger 2, the other branch is communicated with the battery thermal management module III and the motor thermal management module II, and the two branches are communicated back to the compressor 1 through the gas-liquid separator.
As shown in fig. 3, in a heating mode (the air-supplying and enthalpy-increasing module does not work), a high-temperature and high-pressure refrigerant flows out of the compressor 1, enters the first cooler 4 through a refrigerant pipeline to be condensed and heat-exchanged with water, the heated water exchanges heat with the passenger compartment through the first cold plate 3 to achieve the purpose of heating, and the PTC heater 24 is connected in the pipeline to be used for supplementary heating under the limit working condition; the refrigerant flows out of the first cooler 4 and passes through the economizer 5 without heat exchange, is throttled by the second expansion valve 15, then enters the outdoor heat exchanger 2 to exchange heat with the external environment, and enters the battery thermal management module II and the motor thermal management module III to achieve the purpose of battery thermal management or motor thermal management; then, the refrigerant enters the compressor 1 through the gas-liquid separator to complete a heating cycle.
As shown in fig. 4, when the air-supplying and enthalpy-increasing module starts to operate, the refrigerant flows out of the first cooler 4 and passes through the economizer 5 to generate heat exchange, that is, a part of the refrigerant flows out of the first cooler 4 and directly enters the economizer 5, a part of the refrigerant is throttled by the third expansion valve 14 and then enters the economizer 5, and the refrigerant gas generated after heat exchange enters the compressor 1 through the air-supplying port of the compressor;
the selected compressor 1 is an air-supplying enthalpy-increasing type electric compressor and is provided with a safety valve, the selected heat exchangers are aluminum micro-channel heat exchangers, the selected cooler, the economizer and the cold plate are plate heat exchangers, and the selected PTC heater is a water heater.
In the present embodiment, the first expansion valve 19, the second expansion valve 15, and the third expansion valve 14 are all electronic expansion valves.
The utility model discloses an actively advance the effect and lie in, the utility model provides an utilize tonifying qi of secondary circuit to increase enthalpy electric automobile air conditioner heat pump system, increase enthalpy module, battery thermal management module and motor thermal management module including the tonifying qi, use the tonifying qi to increase the enthalpy module on the one hand, can satisfy electric automobile normal heating in low temperature environment. On the other hand, the battery thermal management module and the motor thermal management module are used in the system, so that the energy utilization efficiency can be improved, and the normal operation of the electric automobile can be ensured.
Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (10)
1. The utility model provides a tonifying qi increases enthalpy heat pump air conditioning system with motor battery thermal management which characterized in that, it includes:
the compressor, the gas-liquid separator and the outdoor heat exchanger are communicated;
the battery thermal management module is used for exchanging heat with a battery and is communicated with the compressor;
the motor heat management module is used for exchanging heat with a motor and is communicated with the compressor;
the first cooler is in heat exchange connection with a first cold plate and is communicated with the compressor;
a vapor-supplementing and enthalpy-increasing module; the air-supplying enthalpy-increasing module is communicated with the outdoor heat exchanger and the compressor.
2. The air-supplementing enthalpy-increasing heat pump air-conditioning system with electric motor battery thermal management of claim 1, wherein the air-supplementing enthalpy-increasing heat pump air-conditioning system with electric motor battery thermal management switches between a cooling mode and a heating mode, wherein,
in a refrigeration mode, after the compressor is communicated with the outdoor heat exchanger and the first thermal expansion valve, one branch is communicated with the first cooler, the other branch is communicated with the first expansion valve, the battery thermal management module and the motor thermal management module, and the two branches are communicated back to the compressor through a gas-liquid separator;
in the heating mode, after the compressor is sequentially communicated with the first cooler, the air-supplying and enthalpy-increasing module and the second expansion valve, one branch is sequentially communicated with the first thermal expansion valve and the outdoor heat exchanger, the other branch is communicated with the battery thermal management module and the motor thermal management module, and the two branches are communicated back to the compressor through a gas-liquid separator.
3. The air-supplementing enthalpy-increasing heat pump air conditioning system with electric machine battery thermal management of claim 2, wherein the air-supplementing enthalpy-increasing module comprises an economizer and a third expansion valve in communication, wherein in a heating mode, the first cooler is in communication with the cooler and communication or closing between the first cooler and the third expansion valve.
4. The air-supplementing enthalpy-increasing heat pump air-conditioning system with electric machine battery thermal management of claim 3, wherein the first expansion valve, the second expansion valve, and the third expansion valve are electronic expansion valves.
5. The air make-up enthalpy-increasing heat pump air conditioning system with electric machine battery thermal management of claim 1, wherein the electric machine thermal management module comprises a second cooler and a second cold plate, the second cooler and the second cold plate being in a circulating connection.
6. The air make-up enthalpy-increasing heat pump air conditioning system with electric machine battery thermal management of claim 5, wherein a circulation pump is disposed between the second cooler and the second cold plate.
7. The air-make-up enthalpy-increasing heat pump air conditioning system with electric machine battery thermal management of claim 1, wherein the battery thermal management module comprises a third cooler and a third cold plate, the third cooler and third cold plate being in cyclic connection.
8. The air-supplementing enthalpy-increasing heat pump air-conditioning system with electric machine battery thermal management of claim 7, wherein a circulation pump is disposed between the third cooler and the third cold plate.
9. The air-supplementing enthalpy-increasing heat pump air conditioning system with electric machine battery thermal management of claim 1, wherein the first cooler, a PTC heater, and the first cold plate are cyclically connected.
10. The system of claim 9 wherein the first cooler, a PTC heater and the first cold plate are cyclically connected by a circulation pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922033472.8U CN211335511U (en) | 2019-11-22 | 2019-11-22 | Air-supplementing enthalpy-increasing heat pump air conditioning system with motor battery thermal management |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922033472.8U CN211335511U (en) | 2019-11-22 | 2019-11-22 | Air-supplementing enthalpy-increasing heat pump air conditioning system with motor battery thermal management |
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| CN211335511U true CN211335511U (en) | 2020-08-25 |
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| CN201922033472.8U Active CN211335511U (en) | 2019-11-22 | 2019-11-22 | Air-supplementing enthalpy-increasing heat pump air conditioning system with motor battery thermal management |
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- 2019-11-22 CN CN201922033472.8U patent/CN211335511U/en active Active
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