CN110217070B - New energy automobile thermal management air conditioning system - Google Patents

New energy automobile thermal management air conditioning system Download PDF

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Publication number
CN110217070B
CN110217070B CN201910511970.0A CN201910511970A CN110217070B CN 110217070 B CN110217070 B CN 110217070B CN 201910511970 A CN201910511970 A CN 201910511970A CN 110217070 B CN110217070 B CN 110217070B
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China
Prior art keywords
motor
heat
heat recovery
temperature control
unit
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CN201910511970.0A
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Chinese (zh)
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CN110217070A (en
Inventor
曹浩
黄冰
陈国豪
钟义军
胡鹏飞
景阳阳
蒋金龙
向德虎
李昱霖
伍启发
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Shenzhen Skyworth Air Conditioning Technology Co Ltd
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Shenzhen Skyworth Air Conditioning Technology Co Ltd
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Priority to CN201910511970.0A priority Critical patent/CN110217070B/en
Publication of CN110217070A publication Critical patent/CN110217070A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00271HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit
    • B60H1/00278HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit for the battery
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/00357Air-conditioning arrangements specially adapted for particular vehicles
    • B60H1/00385Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
    • B60H1/00392Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00Heating, cooling or ventilating [HVAC] devices
    • B60H1/02Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant
    • B60H1/14Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit
    • B60H1/143Heating, cooling or ventilating [HVAC] devices the heat being derived from the propulsion plant otherwise than from cooling liquid of the plant, e.g. heat from the grease oil, the brakes, the transmission unit the heat being derived from cooling an electric component, e.g. electric motors, electric circuits, fuel cells or batteries

Abstract

The invention provides a new energy automobile heat management air-conditioning system which comprises an air-conditioning unit for controlling the temperature of an automobile; the motor electric control temperature control unit is used for controlling the temperature of the motor mechanism and the electric control mechanism; the heat recovery unit is connected with the motor electric control temperature control unit, arranged on the air conditioning unit and used for recovering heat in the motor electric control temperature control unit; the condensation outer fan is used for providing convection airflow for the air conditioning unit and the motor electric control temperature control unit; and an evaporative inner fan for providing convective air flow for the air conditioning unit and the heat recovery unit. And then realized air conditioning system and the automatically controlled temperature control unit's of motor combination setting, also realized the recovery to the heat that motor mechanism and electrical control mechanism produced simultaneously to in fan carried the new energy automobile carriage in passing through the evaporation with the heat of retrieving, for providing the heating installation in the carriage, and then improved the utilization efficiency of the energy among the new energy automobile.

Description

New energy automobile thermal management air conditioning system
Technical Field
The invention relates to the technical field of new energy automobile air conditioners, in particular to a new energy automobile heat management air conditioning system.
Background
Along with the continuous increase of automobile consumption, traditional car relies on fossil fuel such as burning petrol, diesel oil to provide power, has not only consumed a large amount of energy, and a large amount of automobile exhaust of simultaneously discharging causes environmental pollution more and more seriously, also becomes one of the leading reasons that the haze produced. Therefore, new energy vehicles with energy saving and environmental protection are increasingly favored by governments and society, and especially pure electric vehicles and clean energy hydrogen fuel cell electric vehicles which are used in large quantities at present are adopted. The pure electric vehicle provides power for the motor by means of the power battery pack, and provides power for an air conditioning system, a control system and the like of the whole vehicle.
In the actual operation process of new energy automobiles such as the existing pure electric automobile, a hydrogen fuel cell electric automobile and the like, a motor mechanism, a vehicle-mounted battery and an electric control mechanism of the automobile all generate redundant heat during energy conversion; for the heat dissipation of a motor, a control system and a fuel cell, on one hand, the existing pure electric automobile and the existing hydrogen fuel cell electric automobile need to be respectively and independently configured with respective special heat dissipation systems, so as to realize the temperature control treatment of the motor, a vehicle-mounted battery and an electric control mechanism of the automobile; the multiple heat dissipation systems independently arranged on the automobile increase the cost and complexity of the whole automobile; meanwhile, the heat temperature control of the whole vehicle cannot be realized, and the uniform control among all the radiating systems is difficult to realize; on the other hand, when the existing heat dissipation system performs temperature control processing on the motor, the control system and the battery, the heat dissipated by the motor, the control system and the battery is wasted, and energy is wasted.
Therefore, how to provide an air conditioning system capable of effectively realizing the overall temperature control treatment and the heat energy of the new energy automobile becomes a problem to be solved urgently.
Disclosure of Invention
The invention aims to solve the technical problem that a new energy automobile heat management air-conditioning system is provided aiming at overcoming the defects in the prior art, and aims to solve the problem that the new energy automobile cannot be subjected to integral temperature control treatment and heat energy recycling in the prior art.
The technical scheme adopted by the invention for solving the technical problem is as follows: a new energy automobile thermal management air conditioning system comprises:
an air conditioning unit for temperature control of the vehicle;
the motor electric control temperature control unit is used for controlling the temperature of the motor mechanism and the electric control mechanism;
the heat recovery unit is connected with the motor electric control temperature control unit, arranged on the air conditioning unit and used for recovering heat in the motor electric control temperature control unit;
the condensation outer fan is used for providing convection airflow for the air conditioning unit and the motor electric control temperature control unit;
and an evaporative inner fan for providing convective air flow for the air conditioning unit and the heat recovery unit.
Further, the new energy automobile thermal management air conditioning system further comprises:
a battery temperature control unit for performing temperature control for the vehicle-mounted battery;
the battery temperature control unit is connected with the heat recovery unit and shares a condensation outer fan with the motor electric control temperature control unit and the air conditioning unit.
Further, the air conditioning unit is provided with a variable frequency compressor, a condenser and an evaporator which are connected in series through pipelines;
the heat recovery unit is provided with a heat recovery heat exchanger which is connected with the electric control temperature control unit of the motor and the battery temperature control unit and arranged on a pipeline between the variable frequency compressor and the condenser.
Further, the heat recovery unit further includes:
and the heat recovery surface air cooler is connected with the motor electric control temperature control unit and the battery temperature control unit and is connected with the heat recovery heat exchanger in parallel.
Furthermore, the heat recovery heat exchanger is arranged on a pipeline between the variable frequency compressor and the condenser, and the heat recovery surface cooler is arranged at the evaporator.
Further, the motor electric control temperature control unit is provided with a motor electric control radiator, and the battery temperature control unit is provided with a battery radiator;
the condensation external fan is arranged at the electric control radiator of the motor, the battery radiator and the condenser;
the evaporation inner fan is arranged at the heat recovery surface cooler and the evaporator.
Further, the battery temperature control unit further includes: the battery radiator is connected in series between the second water pump and the third three-way valve; the first valve port of the third three-way valve is connected with the battery heat exchange tube, and the second valve port of the third three-way valve is connected with the battery radiator; and a third valve port of the third three-way valve is connected with one ends of the heat recovery heat exchanger and the heat recovery surface cooler, and the other ends of the heat recovery heat exchanger and the heat recovery surface cooler are connected between the second water pump and the battery radiator.
Further, the electric control temperature control unit of the motor further comprises: the motor electric control radiator is connected in series between the first water pump and the first three-way valve; the first valve port of the first three-way valve is connected with the motor heat exchange tube, the second valve port of the first three-way valve is connected with the motor electric control radiator, the third valve port of the first three-way valve is connected with one end of the heat recovery heat exchanger and one end of the heat recovery surface cooler, and the other end of the heat recovery heat exchanger and the other end of the heat recovery surface cooler are connected between the first water pump and the motor electric control radiator.
Furthermore, the heat recovery unit is also provided with a second three-way valve, a first valve port of the second three-way valve is connected with a third valve port of the first three-way valve and a third three-way valve, the second valve port is connected with the heat recovery heat exchanger, and the third valve port is connected with the heat recovery surface air cooler.
Further, the air conditioning unit also comprises an electronic expansion valve, a four-way valve and a gas-liquid separator; the electronic expansion valve is connected in series between the condenser and the evaporator; the gas-liquid separator is connected in series between the four-way valve and the variable-frequency compressor; the four-way valve is provided with a C port end, a D port end, an E port end and an S port end; the C-port end is connected with the condenser, the D-port end is connected with the variable frequency compressor, the E-port end is connected with the evaporator, and the S-port end is connected with the gas-liquid separator.
Compared with the prior art, the invention provides a new energy automobile heat management air-conditioning system which comprises an air-conditioning unit for controlling the temperature of an automobile; the motor electric control temperature control unit is used for controlling the temperature of the motor mechanism and the electric control mechanism; the heat recovery unit is connected with the motor electric control temperature control unit, arranged on the air conditioning unit and used for recovering heat in the motor electric control temperature control unit; the condensation outer fan is used for providing convection airflow for the air conditioning unit and the motor electric control temperature control unit; and an evaporative inner fan for providing convective air flow for the air conditioning unit and the heat recovery unit. And then realized air conditioning system and the automatically controlled temperature control unit's of motor combination setting, also realized the recovery to the heat that motor mechanism and electrical control mechanism produced simultaneously to in fan carried the new energy automobile carriage in passing through the evaporation with the heat of retrieving, for providing the heating installation in the carriage, and then improved the utilization efficiency of the energy among the new energy automobile.
Drawings
FIG. 1 is a schematic flow diagram of a thermal management air conditioning system of a new energy automobile according to the invention;
FIG. 2 is a schematic flow chart of a thermal management air conditioning system of a new energy automobile according to the invention;
FIG. 3 is a schematic diagram of a flow deformation of a thermal management air conditioning system of a new energy automobile in the invention;
FIG. 4 is a schematic diagram of a flow deformation of a thermal management air conditioning system of a new energy automobile in the invention;
description of reference numerals:
10. a new energy automobile thermal management air conditioning system; 20. a motor mechanism; 30. a vehicle-mounted battery; 40. an electric control mechanism; 11. an air conditioning unit; 12. a motor electric control temperature control unit; 13. a battery temperature control unit; 14. a heat recovery unit; 15. a condensing outer fan; 16. an evaporation inner fan; 17. a first valve port; 18. a second valve port; 19. a third valve port; 111. a variable frequency compressor; 112. a condenser; 113. an evaporator; 114. an electronic expansion valve; 115. a four-way valve; 116. a gas-liquid separator; 121. A motor electric control radiator; 122. a first water pump; 123. an electric control heat exchange tube; 124. a motor heat exchange tube; 125. a first three-way valve; 131. a battery heat sink; 132. a second water pump; 133. a battery heat exchange tube; 134. a third three-way valve; 141. a heat recovery surface cooler; 142. a heat recovery heat exchanger; 143. a second three-way valve; 144. c, an opening end; 145. a D port end; 146. e, an opening end; 147. and an S-shaped opening end.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and fig. 2, a first embodiment of the present invention provides a new energy vehicle thermal management air-conditioning system 10, configured to perform overall thermal management and air-conditioning temperature control operations on a new energy vehicle; the new energy automobile thermal management air-conditioning system 10 effectively recycles heat generated by the motor mechanism 20, the electric control mechanism 40 or the vehicle-mounted battery 30 while cooling the motor mechanism 20, the electric control mechanism 40 or the vehicle-mounted battery 30 of the vehicle, so that comprehensive utilization of energy is realized.
Specifically, the new energy automobile thermal management air conditioning system 10 includes: an air conditioning unit 11 for temperature control of the vehicle; a motor electric control temperature control unit 12 for controlling the temperature of the motor mechanism 20 and the electric control mechanism 40; a heat recovery unit 14 connected to the motor electric control temperature control unit 12, disposed on the air conditioning unit 11, and configured to recover heat in the motor electric control temperature control unit 12; a condensing outer fan 15 for providing convection airflow for the air conditioning unit 11 and the motor electric control temperature control unit 12; and an evaporative inner fan 16 for providing convective air flow to the air conditioning unit 11 and the heat recovery unit 14.
It can be understood that the new energy automobile thermal management air conditioning system 10 is composed of an air conditioning unit 11, a motor electric control temperature control unit 12, a heat recovery unit 14, a condensation outer fan 15 and an evaporation inner fan 16; the air conditioning unit 11 is used for cooling or heating a vehicle space; the motor electric control temperature control unit 12 is used for cooling the motor mechanism 20 and the electric control mechanism 40 of the new energy automobile, so that normal operation of the motor mechanism 20 and the electric control mechanism 40 is ensured; the heat recovery unit 14 is used for absorbing heat of the motor mechanism 20 and the vehicle-mounted battery 30 brought out by the motor electric control temperature control unit 12. Compared with the prior art, the new energy automobile is provided with the air conditioning unit 11 and the motor electric control temperature control unit 12 independently, the new energy automobile thermal management air conditioning system 10 achieves the combined arrangement of the air conditioning unit 11 and the motor electric control temperature control unit 12, meanwhile, the heat generated by the motor mechanism 20 and the electric control mechanism 40 is recovered, the recovered heat is conveyed into a new energy automobile compartment through the evaporation inner fan 16, the heating is provided for the compartment, and the utilization efficiency of energy in the new energy automobile is further achieved.
Further, the air conditioning unit 11 and the motor electric control temperature control unit 12 share a condensing outer fan 15, and the air conditioning unit 11 and the heat recovery unit 14 share an evaporating inner fan 16; that is, the condensing external fan 15 can perform heat dissipation treatment on the air conditioning unit 11 and the motor electric control temperature control unit 12 at the same time; compared with the prior art, a plurality of fans are needed to be arranged, the heat dissipation treatment can be simultaneously carried out on the air conditioning unit 11 and the motor electric control temperature control unit 12 by the single condensation outer fan 15, the complexity and the cost of a separately configured motor mechanism 20 and electric control mechanism 40 heat dissipation system are effectively solved, and the complexity and the manufacturing cost of the whole new energy automobile are further remarkably reduced; the combination setting of the air conditioning unit 11 and the motor electric control temperature control unit 12 is also realized, the consumption of the heat dissipation system on the electric power of the new energy automobile is effectively reduced, the energy utilization efficiency of the new energy automobile is improved, and the running mileage of the new energy automobile is also improved.
Furthermore, the evaporation inner fan 16 can perform heat dissipation treatment on the air conditioning unit 11 and the motor electric control temperature control unit 12 at the same time; that is, the evaporation inner fan 16 can perform heat dissipation processing on the air conditioning unit 11 and the heat recovery unit 14 at the same time; compared with a new energy automobile heat dissipation system in the prior art, the heat energy generated by the electrode mechanism and the electric control mechanism 40 is recycled, the consumption of the heat dissipation system on the new energy automobile is effectively reduced, the energy utilization efficiency of the new energy automobile is improved, and the running mileage of the new energy automobile is also improved.
In a preferred embodiment, the thermal management air conditioning system 10 of the new energy vehicle further includes a battery temperature control unit 13 for performing temperature control on the vehicle-mounted battery 30; it should be noted that, existing new energy automobiles basically replace fossil energy with a vehicle-mounted battery 30 to provide power for the automobiles; the new energy automobile comprises a pure electric automobile and a hydrogen fuel cell automobile; when the vehicle-mounted battery 30 does work by discharging, or stores energy by charging, or generates electricity by hydrogen fuel, a large amount of heat is often generated, and too high temperature seriously affects the service life of the vehicle-mounted battery 30 and reduces the service life of the vehicle-mounted battery 30. The thermal management air-conditioning system 10 of the new energy automobile is provided with the battery temperature control unit 13, so that the temperature control of the vehicle-mounted battery 30 is effectively realized, the normal operation of the vehicle-mounted battery 30 is effectively guaranteed, and the use safety of the new energy automobile is improved.
Further, the battery temperature control unit 13 is connected to the heat recovery unit 14, and shares a condensing external fan 15 with the motor electric control temperature control unit 12 and the air conditioning unit 11. It can be understood that, through being connected battery temperature control unit 13 with heat recovery unit 14, and then realized utilizing the heat recovery that on-vehicle battery 30 produced, promoted new energy automobile's energy utilization ratio, reduced cooling system to new energy automobile energy consumption, promoted energy utilization efficiency and new energy automobile's operating mileage.
In another preferred embodiment, the air conditioning unit 11 is provided with an inverter compressor 111, a condenser 112 and an evaporator 113 connected in series by piping; the heat recovery unit 14 is provided with a heat recovery heat exchanger 142 which is connected with the motor electric control temperature control unit 12 and the battery temperature control unit 13 and is arranged on a pipeline between the variable frequency compressor 111 and the condenser 112. The air conditioning unit 11 further includes an electronic expansion valve 114 connected in series between the condenser 112 and the evaporator 113.
When the air conditioning unit 11 operates in the cooling mode, the inverter compressor 111 provides a high-temperature high-pressure gaseous refrigerant, and then the gaseous refrigerant flows into the condenser 112, and the convection airflow provided by the condensing outer fan 15 is cooled and released at the condenser 112 to be changed into a normal-temperature high-pressure liquid refrigerant; then the normal-temperature high-pressure refrigerant enters the electronic expansion valve 114, the electronic expansion valve 114 is throttled, depressurized and cooled to be changed into a low-temperature low-pressure liquid refrigerant, then the low-temperature low-pressure liquid refrigerant enters the evaporator 113, the low-temperature low-pressure liquid refrigerant is evaporated and absorbed at the evaporator 113 to be changed into a low-pressure gaseous refrigerant, the convective air flow provided by the evaporation inner fan 16 is cooled, and finally the convective air flow returns to the variable frequency compressor 111, so that the air-conditioning refrigeration of the whole vehicle is.
When the air conditioning unit 11 operates in a heating mode, the variable frequency compressor 111 outputs a high-temperature high-pressure gaseous refrigerant, and the high-temperature high-pressure gaseous refrigerant enters the evaporator 113 and is condensed to release heat to become a normal-temperature high-pressure liquid refrigerant, so that air conditioning heating of the whole vehicle is realized; then, the normal-temperature high-pressure liquid refrigerant enters the electronic expansion valve 114, is throttled, depressurized and cooled at the electronic expansion valve 114 to become a low-temperature low-pressure liquid refrigerant, then enters the condenser 112 to be evaporated and absorb heat to become a low-temperature low-pressure gaseous refrigerant, and finally returns to the variable frequency compressor 111 to complete the heating cycle.
Further, the heat recovery unit 14 further includes a heat recovery surface air cooler 141 connected to the motor-controlled temperature control unit 12 and the battery temperature control unit 13, and connected to the heat recovery heat exchanger 142 in parallel; further, the heat recovery heat exchanger 142 is disposed on a pipeline between the inverter compressor 111 and the condenser 112, and the heat recovery surface cooler 141 is disposed at the evaporator 113.
Furthermore, the motor electric control temperature control unit 12 is provided with a motor electric control radiator 121, and the battery temperature control unit 13 is provided with a battery radiator 131; the condensing external fan 15 is arranged at the motor electric control radiator 121, the battery radiator 131 and the condenser 112; the evaporation inner fan 16 is disposed at the heat recovery surface cooler 141 and the evaporator 113.
In an embodiment, the battery temperature control unit 13 further includes a second water pump 132, a battery heat exchange pipe 133, and a third three-way valve 134 connected in series, and the battery radiator 131 is connected in series between the second water pump 132 and the third three-way valve 134; the battery temperature control unit 13 performs temperature reduction processing on the vehicle-mounted battery 30 by using a coolant; meanwhile, the second water pump 132, the battery heat exchange tube 133, the third three-way valve 134 and the battery radiator 131 are connected by a pipeline, and the selection of the cooling liquid and the arrangement mode of the pipeline are the prior art, which are not described in detail in this embodiment.
Further, the second water pump 132 is used for driving the cooling liquid; the battery heat exchanging pipe 133 is disposed at the vehicle-mounted battery 30, and is used for absorbing heat generated by the vehicle-mounted battery 30; the third three-way valve 134 is used for connecting the battery heat exchange pipe 133 and the battery radiator 131, and controlling the connection state of the heat recovery unit 14 and the battery temperature control unit 13; the battery radiator 131 is used for cooling the coolant, specifically, the battery radiator 131 cools the coolant flowing through the battery radiator 131 and absorbing heat of the vehicle-mounted battery 30 by condensing convection gas provided by the outer fan 15, and then the coolant is recycled. It should be noted that, the selection of the cooling liquid is the prior art, and the details of the present invention are not repeated.
It should be noted that the three-way valve and the four-way valve in the present invention are the prior art, and the three-way valve is provided with three ports, namely, a first port 17, a second port 18 and a third port 19; the four-way valve is also provided with four valve ports which are respectively a C port end 144, a D port end 145, an E port end 146 and an S port end 147; further, a first port 17 of the third three-way valve 134 is connected to the battery heat exchanging pipe 133, a second port 18 of the third three-way valve 134 is connected to the battery radiator 131, and a third port 19 of the third three-way valve 134 is connected to the heat recovery unit 14, that is, the third port 19 of the third three-way valve 134 is connected to one end of the heat recovery heat exchanger 142 and one end of the heat recovery surface cooler 141; the other ends of the heat recovery heat exchanger 142 and the heat recovery surface cooler 141 are connected between the second water pump 132 and the battery radiator 131.
In another embodiment, the motor-controlled temperature control unit 12 further includes a first water pump 122, an electrically-controlled heat exchange pipe 123, a motor heat exchange pipe 124, and a first three-way valve 125 connected in series, and the motor-controlled radiator 121 is connected in series between the first water pump 122 and the first three-way valve 125. The first water pump 122 is used for driving the cooling liquid; the electric control heat exchange pipe 123 is arranged at the electric control mechanism 40 of the new energy automobile and is used for absorbing heat generated by the electric control mechanism 40; the motor heat exchange pipe 124 is arranged at the motor mechanism 20 of the new energy automobile and used for absorbing heat generated by the motor mechanism 20; the first three-way valve 125 is used for connecting the motor heat exchange pipe 124 and the motor electrically-controlled radiator 121, and controlling the connection state of the heat recovery unit 14 and the motor electrically-controlled temperature control unit 12; the electric control radiator 121 of the motor is used for cooling the cooling liquid, specifically, the electric control radiator 121 of the motor cools the cooling liquid flowing through the cooling liquid absorbing heat of the electric control mechanism 40 and the motor mechanism 20 in the electric control radiator through convection gas provided by the outer condensing fan 15, and further realizes recycling of the cooling liquid.
Further, a first port 17 of the first three-way valve 125 is connected to the motor heat exchanging pipe 124, a second port 18 of the first three-way valve 125 is connected to the motor-controlled radiator 121, and a third port 19 of the first three-way valve 125 is connected to the heat recovery unit 14, that is, the third port 19 of the first three-way valve 125 is connected to one end of the heat recovery heat exchanger 142 and one end of the heat recovery surface cooler 141; the other ends of the heat recovery heat exchanger 142 and the heat recovery surface cooler 141 are connected between the first water pump 122 and the motor-driven radiator 121.
It should be noted that the position relationship between the electric control heat exchange tube 123 and the electric control heat exchange tube 124 in the electric control temperature control unit 12 of the motor can be replaced with each other; that is to say, the motor-driven temperature control unit 12 further includes a first water pump 122, a motor heat exchange pipe 124, an electrically-driven heat exchange pipe 123 and a first three-way valve 125 connected in series, and the motor-driven radiator 121 is connected in series between the first water pump 122 and the first three-way valve 125. The first water pump 122 is used for driving the cooling liquid; the motor heat exchange pipe 124 is arranged at the motor mechanism 20 of the new energy automobile and used for absorbing heat generated by the motor mechanism 20; the electric control heat exchange pipe 123 is arranged at the electric control mechanism 40 of the new energy automobile and is used for absorbing heat generated by the electric control mechanism 40; the first three-way valve 125 is used for connecting the electrically-controlled heat exchange pipe 123 with the motor electrically-controlled radiator 121 and controlling the connection state of the heat recovery unit 14 and the motor electrically-controlled temperature control unit 12; the electric control radiator 121 of the motor is used for cooling the cooling liquid, specifically, the electric control radiator 121 of the motor cools the cooling liquid flowing through the cooling liquid absorbing heat of the electric control mechanism 40 and the motor mechanism 20 in the electric control radiator through convection gas provided by the outer condensing fan 15, and further realizes recycling of the cooling liquid.
Further, a first valve port 17 of the first three-way valve 125 is connected to the electrically-controlled heat exchange pipe 123, a second valve port 18 of the first three-way valve 125 is connected to the motor-controlled radiator 121, and a third valve port 19 of the first three-way valve 125 is connected to the heat recovery unit 14, that is, the third valve port 19 of the first three-way valve 125 is connected to one end of the heat recovery heat exchanger 142 and one end of the heat recovery surface cooler 141; the other ends of the heat recovery heat exchanger 142 and the heat recovery surface cooler 141 are connected between the first water pump 122 and the motor-driven radiator 121.
In another preferred embodiment, the heat recovery unit 14 is further provided with a second three-way valve 143, the first port 17 of the second three-way valve 143 is connected with the first port 125 and the third port 19 of the third three-way valve 134, the second port 18 is connected with the heat recovery heat exchanger 142, and the third port 19 is connected with the heat recovery surface cooler 141.
In another preferred embodiment, the air conditioning unit 11 further comprises a four-way valve 115 and a gas-liquid separator 116; the gas-liquid separator 116 is connected in series between the four-way valve 115 and the inverter compressor 111; the C port end 144 of the four-way valve 115 is connected with the condenser 112, the D port end 145 is connected with the variable frequency compressor 111, the E port end 146 is connected with the evaporator 113, and the S port end 147 is connected with the gas-liquid separator 116.
When the air conditioning unit 11 operates in the cooling mode, the C port 144 and the D port 145 of the four-way valve 115 are connected, and the E port 146 and the S port 147 of the four-way valve 115 are connected; the variable frequency compressor 111 outputs high-temperature and high-pressure gaseous refrigerant, then the high-temperature and high-pressure gaseous refrigerant enters the four-way valve 115 through a D port end 145 of the four-way valve 115, then the high-temperature and high-pressure gaseous refrigerant enters the condenser 112 through a C port end 144 of the four-way valve 115, the heat of the condenser 112 is released by the condensing outer fan 15 and is changed into normal-temperature and high-pressure liquid refrigerant, then the high-temperature and high-pressure liquid refrigerant enters the evaporator 113 after being throttled by the electronic expansion valve 114, and the high-temperature and high-; the low-pressure gaseous refrigerant flowing out of the evaporator 113 enters the four-way valve 115 through the E port 146 of the four-way valve 115, flows out of the four-way valve 115 from the S port 147, enters the gas-liquid separator 116, and finally returns to the inverter compressor 111, thereby completing the refrigeration cycle.
It can be understood that the high-temperature and high-pressure gaseous refrigerant at the condenser 112 releases heat to change into a normal-temperature and high-pressure liquid refrigerant through the convection airflow provided by the condensing external fan 15, and when the condensing external fan 15 cools the refrigerant, the battery radiator 131 and the motor electrically-controlled radiator 121 are simultaneously cooled. When the evaporator 113 evaporates and absorbs heat, the gas near the evaporator 113 is cooled, and the evaporation inner fan 16 continuously blows the gas to the evaporator 113, and after the gas is cooled and cooled at the evaporator 113, the gas enters the compartment of the new energy automobile to cool the new energy automobile.
When the air conditioning unit 11 operates in the heating mode, the C port 144 and the S port 147 of the four-way valve 115 are connected, and the D port 145 and the E port 146 of the four-way valve 115 are connected; the inverter compressor 111 outputs high-temperature and high-pressure gaseous refrigerant, then the gaseous refrigerant enters the four-way valve 115 through the D port end 145 of the four-way valve 115, then the gaseous refrigerant enters the evaporator 113 through the E port end 146 of the four-way valve 115, and the gaseous refrigerant is converted into normal-temperature and high-pressure liquid refrigerant through heat release of the evaporation inner fan 16 in the evaporator 113, so that heating of the whole vehicle is completed; then the normal-temperature high-pressure liquid refrigerant is changed into a low-temperature low-pressure liquid refrigerant after passing through the electronic expansion valve 114; then, the low-temperature and low-pressure liquid refrigerant enters the condenser 112, and absorbs heat at the condenser 112 to change into a low-temperature and low-pressure gaseous refrigerant; then, the low-temperature and low-pressure gaseous refrigerant enters the four-way valve 115 from the C port end 144 of the four-way valve 115, flows out of the four-way valve 115 from the S port end 147, enters the gas-liquid separator 116, and flows back to the inverter compressor 111, thereby completing the heating cycle.
It can be understood that, when the high-temperature and high-pressure gaseous refrigerant changes into a normal-temperature and high-pressure liquid refrigerant at the evaporator 113, a large amount of heat is released, so that the gas near the evaporator 113 is heated; meanwhile, the inner evaporation fan 16 blows gas to the evaporator 113 continuously, and the gas enters the compartment of the new energy automobile after being heated and warmed at the evaporator 113 to cool and heat the new energy automobile.
At the condenser 112, the low-temperature low-pressure liquid refrigerant entering the condenser 112 absorbs heat and changes into a low-temperature low-pressure gaseous refrigerant, so that a large amount of heat at the condenser 112 is absorbed, the convection air flow provided by the condensing external fan 15 is cooled, and meanwhile, the battery radiator 131 and the motor electric control radiator 121 are subjected to heat dissipation and cooling treatment.
In a specific embodiment, the air conditioning unit 11 in the thermal management air conditioning system 10 of the new energy vehicle in the embodiment operates in a cooling mode; at this time, the C port 144 of four-way valve 115 is connected to D port 145, and the E port 146 and S port 147 of four-way valve 115 are connected. The variable frequency compressor 111 outputs high-temperature and high-pressure gaseous refrigerant, then the high-temperature and high-pressure gaseous refrigerant enters the four-way valve 115 through a D port end 145 of the four-way valve 115, then the high-temperature and high-pressure gaseous refrigerant enters the condenser 112 through a C port end 144 of the four-way valve 115, the heat of the condenser 112 is released by the condensing outer fan 15 and is changed into normal-temperature and high-pressure liquid refrigerant, then the high-temperature and high-pressure liquid refrigerant enters the evaporator 113 after being throttled by the electronic expansion valve 114, and the high-temperature and high-; the low-pressure gaseous refrigerant flowing out of the evaporator 113 enters the four-way valve 115 through the E port 146 of the four-way valve 115, flows out of the four-way valve 115 from the S port 147, enters the gas-liquid separator 116, and finally returns to the inverter compressor 111, thereby completing the refrigeration cycle.
The motor electric control temperature control unit 12 operates to cool the electric control mechanism 40 and the motor mechanism 20 of the new energy automobile; at this time, the first water pump 122 is started to operate, so as to drive the cooling liquid in the motor electric control temperature control unit 12 to flow in the motor electric control temperature control unit 12; the first water pump 122 drives the cooling liquid to flow into the electric control heat exchange pipe 123, absorbs the heat generated at the electric control mechanism 40, and cools the electric control mechanism 40; then the cooling liquid absorbing the heat of the electric control mechanism 40 enters the motor heat exchange tube 124, then absorbs the heat of the motor mechanism 20, and carries out cooling treatment on the motor mechanism 20; the coolant after absorbing the motor mechanism 20 flows into the motor-controlled radiator 121 through the first valve port 17 and the second valve port 18 of the first three-way valve 125; the cooling liquid entering the electric control radiator 121 of the motor is cooled by the convection air flow provided by the condensing outer fan 15, and then enters the first water pump 122 to start the next circulation.
Preferably, the new energy automobile thermal management air conditioning system 10 is provided with a battery temperature control unit 13, and when the air conditioning unit 11 operates in a refrigeration mode, the battery temperature control unit 13 operates simultaneously while the motor electronic control temperature control unit 12 operates.
Specifically, the second water pump 132 is started to operate, so as to drive the cooling liquid in the battery temperature control unit 13 to flow; after leaving the second water pump 132, the coolant enters the battery heat exchange pipe 133, and absorbs heat generated by the vehicle-mounted battery 30 at the battery heat exchange pipe 133; the coolant having absorbed the heat of the vehicle-mounted battery 30 enters the battery radiator 131 through the first valve port 17 and the second valve port 18 of the third three-way valve 134; the cooling liquid entering the battery radiator 131 is cooled by the convection air flow provided by the condensing outer fan, and then enters the second water pump 132 again to perform the next circulation.
In another specific embodiment, the air conditioning unit 11 in the thermal management air conditioning system 10 of the new energy vehicle in the embodiment operates in a heating mode; at this time, the C port 144 of the four-way valve 115 is connected to the S port 147, and the D port 145 and the E port 146 of the four-way valve 115 are connected. The inverter compressor 111 outputs high-temperature and high-pressure gaseous refrigerant, then the gaseous refrigerant enters the four-way valve 115 through the D port end 145 of the four-way valve 115, then the gaseous refrigerant enters the evaporator 113 through the E port end 146 of the four-way valve 115, and the gaseous refrigerant is converted into normal-temperature and high-pressure liquid refrigerant through heat release of the evaporation inner fan 16 in the evaporator 113, so that heating of the whole vehicle is completed; then the normal-temperature high-pressure liquid refrigerant is changed into a low-temperature low-pressure liquid refrigerant after passing through the electronic expansion valve 114; then, the low-temperature and low-pressure liquid refrigerant enters the condenser 112, and absorbs heat at the condenser 112 to change into a low-temperature and low-pressure gaseous refrigerant; then, the low-temperature and low-pressure gaseous refrigerant enters the four-way valve 115 from the C port end 144 of the four-way valve 115, flows out of the four-way valve 115 from the S port end 147, enters the gas-liquid separator 116, and flows back to the inverter compressor 111, thereby completing the heating cycle.
It should be noted that, when the air conditioning unit 11 is in heating operation, the heat recovery unit 14 is in synchronous operation, and recovers and utilizes the heat generated by the electric control mechanism 40, the motor mechanism 20, and the on-board battery 30 in the motor electric control temperature control unit 12 and the battery temperature control unit 13, specifically as follows:
the motor electric control temperature control unit 12 operates to cool the electric control mechanism 40 and the motor mechanism 20 of the new energy automobile; at this time, the first water pump 122 is started to operate, so as to drive the cooling liquid in the motor electric control temperature control unit 12 to flow in the motor electric control temperature control unit 12; the first water pump 122 drives the cooling liquid to flow into the electric control heat exchange pipe 123, absorbs the heat generated at the electric control mechanism 40, and cools the electric control mechanism 40; then the cooling liquid absorbing the heat of the electric control mechanism 40 enters the motor heat exchange tube 124, then absorbs the heat of the motor mechanism 20, and carries out cooling treatment on the motor mechanism 20; the coolant having absorbed the motor mechanism 20 flows into the heat recovery unit 14 through the first port 17 and the third port 19 of the first three-way valve 125, and carries the heat generated by the motor mechanism 20 and the electric control mechanism 40 into the heat recovery unit 14.
Meanwhile, when the battery temperature control unit 13 operates, the second water pump 132 is started to operate, and drives the cooling liquid in the battery temperature control unit 13 to flow; after leaving the second water pump 132, the coolant enters the battery heat exchange pipe 133, and absorbs heat generated by the vehicle-mounted battery 30 at the battery heat exchange pipe 133; the coolant that has absorbed the heat of the on-vehicle battery 30 flows into the heat recovery unit 14 through the first port 17 and the third port 19 of the third three-way valve 134, and carries the heat generated by the on-vehicle battery 30 into the heat recovery unit 14.
The cooling liquid in the electric-controlled temperature control unit 12 of the motor and the battery temperature control unit 13 enters the heat recovery unit 14 through the first valve port 17 of the second three-way valve 143 of the heat recovery unit 14, the cooling liquid is cooled after the heat is recovered by the heat recovery unit 14, and then a part of the cooled cooling liquid flows back to the electric-controlled temperature control unit 12 of the motor from a pipeline between the first water pump 122 and the electric-controlled radiator 121 of the motor again; the other part flows back to the battery temperature control unit 13 again from the pipe between the second water pump 132 and the battery radiator 131.
When the temperature of the coolant at the first port 17 of the second three-way valve 143 is greater than or equal to the predetermined temperature T1When the current is over; the first valve port 17 of the second three-way valve 143 is connected to the third valve port 19, the cooling liquid of the motor-controlled temperature control unit 12 and the battery temperature control unit 13 flows into the heat recovery surface air cooler 141 through the first valve port 17 and the third valve port 19, and is cooled by the convective air flow provided by the evaporation inner fan 16, and then a part of the cooled cooling liquid flows back to the motor-controlled temperature control unit 12 from the pipeline between the first water pump 122 and the motor-controlled radiator 121; the other part flows back to the battery temperature control unit 13 again from the pipe between the second water pump 132 and the battery radiator 131. It should be emphasized that, while the evaporation inner fan 16 cools the heat recovery surface cooler 141, the convection gas absorbing heat enters the interior of the new energy vehicle compartment, so as to effectively recycle the heat generated by the motor mechanism 20, the vehicle-mounted battery 30 and the electric control mechanism 40, further reduce the operating power of the air conditioning unit 11, effectively reduce the energy consumption of the vehicle-mounted battery 30 of the new energy vehicle, and improve the operating mileage of the new energy vehicle.
When the temperature of the coolant at the first port 17 of the second three-way valve 143 is lower than the preset temperature T1When the current is over; the first valve port 17 and the second valve port 18 of the second three-way valve 143 are communicated, the cooling liquid of the motor electric control temperature control unit 12 and the battery temperature control unit 13 flows into the heat recovery heat exchanger 142 through the first valve port 17 and the second valve port 18, and exchanges heat with the refrigerant in the air conditioning unit 11 at the heat recovery heat exchanger 142 to reduce the temperature; then part of the cooled cooling liquid flows from the first water pump122 and the motor electric control radiator 121, and then flows back to the motor electric control temperature control unit 12 again; the other part flows back to the battery temperature control unit 13 again from the pipe between the second water pump 132 and the battery radiator 131. It can be understood that, when the heat recovery heat exchanger 142 cools the cooling liquid of the motor electric control temperature control unit 12 and the battery temperature control unit 13, the released heat generated by the motor mechanism 20, the electric control mechanism 40 and the vehicle-mounted battery 30 exchanges heat with the refrigerant in the air conditioning unit 11, and part of the residual low-temperature and low-pressure liquid refrigerant is heated and changed into a low-temperature and low-pressure gaseous refrigerant, so that the heat generated by the motor mechanism 20, the electric control mechanism 40 and the vehicle-mounted battery 30 is recycled.
It should be noted that the preset temperature T is1Setting the temperature to be 25-60 ℃; further, the preset temperature T1Specifically, the temperature is set to any one of 25 ℃, 30 ℃, 40 ℃, 50 ℃, 55 ℃ or 60 ℃; preferably, the preset temperature T1Set at 40 ℃.
In another specific embodiment, in the present embodiment, the air conditioning unit 11 and the heat recovery unit 14 in the thermal management air conditioning system 10 of the new energy vehicle are in an off state, and the condensing external fan 15, the battery temperature control unit 13, and the motor electrically-controlled temperature control unit 12 are in an on state.
Specifically, the motor electric control temperature control unit 12 operates to cool the electric control mechanism 40 and the motor mechanism 20 of the new energy automobile; at this time, the first water pump 122 is started to operate, and drives the refrigerant in the motor electric control temperature control unit 12 to flow in the motor electric control temperature control unit 12; the first water pump 122 drives the cooling liquid to flow into the electric control heat exchange pipe 123, absorbs the heat generated at the electric control mechanism 40, and cools the electric control mechanism 40; then the cooling liquid absorbing the heat of the electric control mechanism 40 enters the motor heat exchange tube 124, then absorbs the heat of the motor mechanism 20, and carries out cooling treatment on the motor mechanism 20; the coolant after absorbing the motor mechanism 20 flows into the motor-controlled radiator 121 through the first valve port 17 and the second valve port 18 of the first three-way valve 125; the cooling liquid entering the electric control radiator 121 of the motor is cooled by the convection air flow provided by the condensing outer fan 15, and then enters the first water pump 122 to start the next circulation. And further, the heat dissipation and cooling treatment of the electric control mechanism 40 and the motor mechanism 20 of the new energy automobile is effectively ensured, and the normal operation of the new energy automobile is ensured.
Meanwhile, when the battery temperature control unit 13 operates, the second water pump 132 is started to operate, and drives the cooling liquid in the battery temperature control unit 13 to flow; after leaving the second water pump 132, the coolant enters the battery heat exchange pipe 133, and absorbs heat generated by the vehicle-mounted battery 30 at the battery heat exchange pipe 133; the coolant having absorbed the heat of the vehicle-mounted battery 30 enters the battery radiator 131 through the first valve port 17 and the second valve port 18 of the third three-way valve 134; the cooling liquid entering the battery radiator 131 is cooled by the convection air flow provided by the condensing outer fan 15, and then enters the second water pump 132 again to perform the next circulation. And then effectively guaranteed the heat dissipation cooling process to new energy automobile's on-vehicle battery 30, guaranteed the normal safe operation of on-vehicle battery 30, ensured new energy automobile's normal operating.
In another preferred embodiment, in the present embodiment, the air conditioning unit 11 and the condensing external fan 15 in the thermal management air conditioning system 10 of the new energy vehicle are in an off state, and the battery temperature control unit 13, the heat recovery unit 14, and the motor electrically-controlled temperature control unit 12 are in an on state.
Specifically, when the motor electric control temperature control unit 12 operates, the electric control mechanism 40 and the motor mechanism 20 of the new energy automobile are subjected to cooling treatment; at this time, the first water pump 122 is started to operate, so as to drive the cooling liquid in the motor electric control temperature control unit 12 to flow in the motor electric control temperature control unit 12; the first water pump 122 drives the cooling liquid to flow into the electric control heat exchange pipe 123, absorbs the heat generated at the electric control mechanism 40, and cools the electric control mechanism 40; then the cooling liquid absorbing the heat of the electric control mechanism 40 enters the motor heat exchange tube 124, then absorbs the heat of the motor mechanism 20, and carries out cooling treatment on the motor mechanism 20; the coolant having absorbed the motor mechanism 20 flows into the heat recovery unit 14 through the first port 17 and the third port 19 of the first three-way valve 125, and carries the heat generated by the motor mechanism 20 and the electric control mechanism 40 into the heat recovery unit 14.
Meanwhile, when the battery temperature control unit 13 operates, the second water pump 132 is started to operate, and drives the cooling liquid in the battery temperature control unit 13 to flow; after leaving the second water pump 132, the coolant enters the battery heat exchange pipe 133, and absorbs heat generated by the vehicle-mounted battery 30 at the battery heat exchange pipe 133; the coolant that has absorbed the heat of the on-vehicle battery 30 flows into the heat recovery unit 14 through the first port 17 and the third port 19 of the third three-way valve 134, and carries the heat generated by the on-vehicle battery 30 into the heat recovery unit 14.
The cooling liquid in the electric-controlled temperature control unit 12 of the motor and the battery temperature control unit 13 enters the heat recovery unit 14 through the first valve port 17 of the second three-way valve 143 of the heat recovery unit 14, the cooling liquid is cooled after the heat is recovered by the heat recovery unit 14, and then a part of the cooled cooling liquid flows back to the electric-controlled temperature control unit 12 of the motor from a pipeline between the first water pump 122 and the electric-controlled radiator 121 of the motor again; the other part flows back to the battery temperature control unit 13 again from the pipe between the second water pump 132 and the battery radiator 131.
Further, the first valve port 17 of the second three-way valve 143 is connected to the third valve port 19, the cooling liquid of the electric-motor-controlled temperature control unit 12 and the battery temperature control unit 13 flows into the heat recovery surface air cooler 141 through the first valve port 17 and the third valve port 19, and is cooled by the convection air flow provided by the evaporation inner fan 16, and then a part of the cooled cooling liquid flows back to the electric-motor-controlled temperature control unit 12 from the pipeline between the first water pump 122 and the electric-motor-controlled radiator 121; the other part flows back to the battery temperature control unit 13 again from the pipe between the second water pump 132 and the battery radiator 131. It should be emphasized that the evaporation inner fan 16 cools the heat recovery surface air cooler 141 and simultaneously enters the convection gas absorbing heat into the interior of the new energy automobile, so as to effectively recycle the heat generated by the motor mechanism 20, the vehicle-mounted battery 30 and the electric control mechanism 40.
With further reference to fig. 3 and fig. 4, in the new energy vehicle thermal management air conditioning system 10 of the present invention, only the air conditioning unit 11, the condensing outer fan 15, the evaporating inner fan 16, the motor electric control temperature control unit 12, and the heat recovery unit 14 may be provided; alternatively, only the air conditioning unit 11, the condensing outer fan 15, the evaporating inner fan 16, the battery temperature control unit 13, and the heat recovery unit 14 are provided; alternatively, an air conditioning unit 11, a condensing outer fan 15, an evaporating inner fan 16, a battery temperature control unit 13, a motor electric control temperature control unit 12, and a heat recovery unit 14 are provided. Meanwhile, the operation states of the air conditioning unit 11, the condensing outer fan 15, the evaporating inner fan 16, the battery temperature control unit 13, the motor electric control temperature control unit 12 and the heat recovery unit 14 may be operated or a plurality of units may be operated synchronously, which is described in detail in the above embodiments of the present invention.
In summary, compared with the prior art, the invention provides a new energy automobile thermal management air conditioning system, which comprises an air conditioning unit for controlling the temperature of an automobile; the motor electric control temperature control unit is used for controlling the temperature of the motor mechanism and the electric control mechanism; the heat recovery unit is connected with the motor electric control temperature control unit, arranged on the air conditioning unit and used for recovering heat in the motor electric control temperature control unit; the condensation outer fan is used for providing convection airflow for the air conditioning unit and the motor electric control temperature control unit; and an evaporative inner fan for providing convective air flow for the air conditioning unit and the heat recovery unit. And then realized air conditioning system and the automatically controlled temperature control unit's of motor combination setting, also realized the recovery to the heat that motor mechanism and electrical control mechanism produced simultaneously to in fan carried the new energy automobile carriage in passing through the evaporation with the heat of retrieving, for providing the heating installation in the carriage, and then improved the utilization efficiency of the energy among the new energy automobile.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.

Claims (5)

1. The utility model provides a new energy automobile thermal management air conditioning system which characterized in that includes:
an air conditioning unit for temperature control of the vehicle;
the motor electric control temperature control unit is used for controlling the temperature of the motor mechanism and the electric control mechanism;
the heat recovery unit is connected with the motor electric control temperature control unit, arranged on the air conditioning unit and used for recovering heat in the motor electric control temperature control unit;
the condensation outer fan is used for providing convection airflow for the air conditioning unit and the motor electric control temperature control unit;
and an evaporative inner fan for providing convective air flow for the air conditioning unit and the heat recovery unit;
a battery temperature control unit for performing temperature control for the vehicle-mounted battery;
the battery temperature control unit is connected with the heat recovery unit and shares a condensation outer fan with the motor electric control temperature control unit and the air conditioning unit;
the air conditioning unit is provided with a variable frequency compressor, a condenser and an evaporator which are connected in series through pipelines;
the heat recovery unit is provided with a heat recovery heat exchanger which is connected with the motor electric control temperature control unit and the battery temperature control unit and is arranged on a pipeline between the variable frequency compressor and the condenser;
the heat recovery unit further comprises:
the heat recovery surface air cooler is connected with the motor electric control temperature control unit and the battery temperature control unit and is connected with the heat recovery heat exchanger in parallel;
the motor electric control temperature control unit is provided with a motor electric control radiator, and the battery temperature control unit is provided with a battery radiator;
the condensation external fan is arranged at the electric control radiator of the motor, the battery radiator and the condenser;
the evaporation inner fan is arranged at the heat recovery surface cooler and the evaporator;
the battery temperature control unit further includes: the battery radiator is connected in series between the second water pump and the third three-way valve; a first valve port of the third three-way valve is connected with the battery heat exchange tube, a second valve port of the third three-way valve is connected with the battery radiator, and a third valve port of the third three-way valve is connected with one ends of the heat recovery heat exchanger and the heat recovery surface cooler; and the other ends of the heat recovery heat exchanger and the heat recovery surface cooler are connected between the second water pump and the battery radiator.
2. The new energy automobile thermal management air-conditioning system according to claim 1,
the heat recovery heat exchanger is arranged on a pipeline between the variable frequency compressor and the condenser, and the heat recovery surface cooler is arranged at the evaporator.
3. The thermal management air-conditioning system for the new energy automobile according to claim 1, wherein the electric control temperature control unit of the motor further comprises: the motor electric control radiator is connected in series between the first water pump and the first three-way valve; the first valve port of the first three-way valve is connected with the motor heat exchange tube, the second valve port of the first three-way valve is connected with the motor electric control radiator, the third valve port of the first three-way valve is connected with one end of the heat recovery heat exchanger and one end of the heat recovery surface cooler, and the other end of the heat recovery heat exchanger and the other end of the heat recovery surface cooler are connected between the first water pump and the motor electric control radiator.
4. The new energy automobile heat management air-conditioning system as claimed in claim 3, wherein the heat recovery unit is further provided with a second three-way valve, a first port of the second three-way valve is connected with third ports of the first three-way valve and the third three-way valve, the second port is connected with the heat recovery heat exchanger, and the third port is connected with the heat recovery surface air cooler.
5. The new energy automobile heat management air-conditioning system as claimed in any one of claims 1 to 4, wherein the air-conditioning unit further comprises an electronic expansion valve, a four-way valve and a gas-liquid separator; the electronic expansion valve is connected in series between the condenser and the evaporator; the gas-liquid separator is connected in series between the four-way valve and the variable-frequency compressor; the four-way valve is provided with a C port end, a D port end, an E port end and an S port end; the end C is connected with the heat recovery heat exchanger, the end D is connected with the variable frequency compressor, the end E is connected with the evaporator, and the end S is connected with the gas-liquid separator.
CN201910511970.0A 2019-06-13 2019-06-13 New energy automobile thermal management air conditioning system Active CN110217070B (en)

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CN111409415B (en) * 2020-03-31 2021-12-21 潍柴动力股份有限公司 Fuel cell stack thermal management apparatus, method and system
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