CN109664721B - Thermal management system and new energy automobile - Google Patents
Thermal management system and new energy automobile Download PDFInfo
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- CN109664721B CN109664721B CN201910130733.XA CN201910130733A CN109664721B CN 109664721 B CN109664721 B CN 109664721B CN 201910130733 A CN201910130733 A CN 201910130733A CN 109664721 B CN109664721 B CN 109664721B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00007—Combined heating, ventilating, or cooling devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-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
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- Sustainable Energy (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a thermal management system and a new energy automobile, and relates to the technical field of automobile thermal management. The heat management system comprises a compressor, an outdoor heat exchange assembly, an indoor evaporation assembly, an indoor condensation assembly, a heat exchanger and a battery heat management assembly. The outdoor heat exchange assembly is connected with the inlet end through the indoor evaporation assembly, the indoor condensation assembly is connected with the inlet end through the outdoor heat exchange assembly, one end of the heat exchanger is connected with the outdoor heat exchange assembly, the other end of the heat exchanger is connected with the outlet end and the inlet end respectively, and the battery heat management assembly is connected with the heat exchanger. Compared with the prior art, the heat management system provided by the invention adopts the indoor evaporation component, the indoor condensation component and the heat exchanger which are respectively connected with the outdoor heat exchanger, so that the refrigeration or heating function can be realized through two different heat exchangers, the fogging in the vehicle body is prevented when the state is switched, the heat can be continuously supplied to the vehicle body in the defrosting process, and the passenger experience is good.
Description
Technical Field
The invention relates to the technical field of automobile thermal management, in particular to a thermal management system and a new energy automobile.
Background
At present, an air conditioning system on an automobile is similar to an air conditioning system in a house and is connected with an indoor heat exchanger through a compressor, an outdoor heat exchanger, a throttle valve so as to circulate a refrigerant, thereby realizing refrigeration or heating in an automobile body. The inventor researches and discovers that because the refrigeration and heating in the vehicle body are realized through the same heat exchanger, when the air conditioning system is switched from the refrigeration mode to the heating mode, the fog can be generated in the vehicle body, the normal driving of a driver is influenced, the comfort level of passengers is reduced, and if the outdoor heat exchanger needs to be defrosted, the heat can not be supplied to the interior of the vehicle body in the defrosting process, even cold air can be output to the interior of the vehicle body, and the passenger experience feeling is poor.
In view of the above, it is important to design and manufacture a comfortable and practical thermal management system and a new energy automobile, especially in automobile production.
Disclosure of Invention
The invention aims to provide a heat management system which can realize the cooling or heating function through two different heat exchangers so as to prevent fog in a vehicle body when in a switching state, and can continuously supply heat to the vehicle body in a defrosting process, so that passengers have good experience.
Another object of the present invention is to provide a new energy vehicle, which can realize cooling or heating functions through two different heat exchangers to prevent fogging in a vehicle body when switching states, and can continuously supply heat to the vehicle body during defrosting, so that passengers experience good feeling, and are comfortable and practical.
The invention is realized by adopting the following technical scheme.
The utility model provides a heat management system, including the compressor, outdoor heat exchange assembly, indoor evaporation subassembly, indoor condensation subassembly, heat exchanger and battery heat management subassembly, the compressor is provided with exit end and entry end relatively, the exit end is connected with outdoor heat exchange assembly and indoor condensation subassembly respectively, outdoor heat exchange assembly passes through indoor evaporation subassembly and is connected with the entry end, indoor condensation subassembly passes through outdoor heat exchange assembly and is connected with the entry end, heat exchanger's one end and outdoor heat exchange assembly are connected, the other end is connected with exit end and entry end respectively, battery heat management subassembly is connected with heat exchanger.
Furthermore, the outdoor heat exchange assembly comprises an outdoor heat exchanger and an outdoor fan, the outdoor heat exchanger is respectively connected with the indoor evaporation assembly and the indoor condensation assembly, and the outdoor fan and the outdoor heat exchanger are arranged at intervals and are corresponding in position.
Further, the heat management system further comprises a first throttle valve and a second throttle valve, the outdoor heat exchanger is connected with the first throttle valve and the second throttle valve respectively, the first throttle valve is connected with the indoor evaporation assembly and the indoor condensation assembly respectively, and the second throttle valve is connected with the heat exchanger.
Further, indoor evaporation subassembly includes first fan, indoor evaporimeter and first stop valve, and outdoor heat exchange assemblies passes through first stop valve and is connected with indoor evaporimeter, and first fan sets up with indoor evaporimeter interval, and the position is corresponding.
Further, indoor condensation subassembly includes second fan, indoor condenser and second stop valve, and the exit end passes through the second stop valve to be connected with indoor condenser, and the second fan sets up with indoor condenser interval, and the position is corresponding.
Further, battery thermal management subassembly includes battery module and water pump, battery module and heat exchanger end to end, and the combination forms the circulation water route, and the water pump is used for driving circulation liquid and flows in the circulation water route, and heat exchanger is used for carrying out the heat exchange through circulation liquid to the battery module.
Further, battery thermal management subassembly still includes auxiliary heating spare, and auxiliary heating spare is installed in circulating water route, and sets up between heat exchanger and battery module.
Further, the water pump is provided with delivery outlet and backward flow mouth relatively, and the delivery outlet is connected with heat exchanger, and the backward flow mouth is connected with the battery module, and the circulation liquid of delivery outlet output loops through heat exchanger, auxiliary heating spare and battery module to enter the backward flow mouth.
Furthermore, battery thermal management subassembly still includes three-way valve and radiator, and the water pump is connected with the three-way valve, and the three-way valve is connected with radiator and heat exchanger respectively, and the one end that the three-way valve was kept away from to the radiator is connected with the one end that the three-way valve was kept away from to the heat exchanger.
The utility model provides a new energy automobile, including foretell heat management system, this heat management system includes the compressor, outdoor heat exchange assembly, indoor evaporation subassembly, indoor condensation subassembly, heat exchanger and battery heat management subassembly, the compressor is provided with exit end and entry end relatively, the exit end is connected with outdoor heat exchange assembly and indoor condensation subassembly respectively, outdoor heat exchange assembly passes through indoor evaporation subassembly and is connected with the entry end, indoor condensation subassembly passes through outdoor heat exchange assembly and is connected with the entry end, heat exchanger's one end is connected with outdoor heat exchange assembly, the other end is connected with exit end and entry end respectively, battery heat management subassembly is connected with heat exchanger.
The heat management system and the new energy automobile provided by the invention have the following beneficial effects:
according to the heat management system provided by the invention, the compressor is oppositely provided with the outlet end and the inlet end, the outlet end is respectively connected with the outdoor heat exchange assembly and the indoor condensing assembly, the outdoor heat exchange assembly is connected with the inlet end through the indoor evaporation assembly, the indoor condensing assembly is connected with the inlet end through the outdoor heat exchange assembly, one end of the heat exchanger is connected with the outdoor heat exchange assembly, the other end of the heat exchanger is respectively connected with the outlet end and the inlet end, and the battery heat management assembly is connected with the heat exchanger. Compared with the prior art, the heat management system provided by the invention adopts the indoor evaporation component, the indoor condensation component and the heat exchanger which are respectively connected with the outdoor heat exchanger, so that the refrigeration or heating function can be realized through two different heat exchangers, the fogging in the vehicle body is prevented when the state is switched, the heat can be continuously supplied to the vehicle body in the defrosting process, and the passenger experience is good.
The new energy automobile provided by the invention comprises the heat management system, the refrigerating or heating function can be realized through two different heat exchangers, so that the fogging in the automobile body is prevented when the state is switched, the heat can be continuously supplied to the inside of the automobile body in the defrosting process, the passenger experience is good, and the new energy automobile is comfortable and practical.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a thermal management system in a cooling mode according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a thermal management system according to an embodiment of the present invention in a heating mode;
FIG. 3 is a schematic structural diagram of a thermal management system in a defrosting mode according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a thermal management system according to an embodiment of the present invention, when the battery module is cooled only by a heat sink;
fig. 5 is a schematic structural diagram illustrating a thermal management system according to an embodiment of the present invention when a battery module is cooled by a heat sink and a compressor;
fig. 6 is a schematic structural diagram of a thermal management system according to an embodiment of the present invention when heating a battery module.
Icon: 100-a thermal management system; 110-a compressor; 111-an outlet end; 112-an inlet end; 120-an outdoor heat exchange assembly; 121-outdoor heat exchanger; 122-outdoor fan; 130-indoor evaporation assembly; 131-a first fan; 132-an indoor evaporator; 133-a first shut off valve; 140-an indoor condensing assembly; 141-a second fan; 142-an indoor condenser; 143-a second stop valve; 150-a heat exchanger; 160-a battery thermal management assembly; 161-battery module; 162-a water pump; 163-auxiliary heating; 164-three-way valve; 165-a heat sink; 166-an output port; 167-reflux port; 170-a first throttle valve; 180-a second throttle valve; 190-a third stop valve; 200-a fourth stop valve; 210-a fifth stop valve; 220-sixth stop valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally put in use of products of the present invention, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.
Examples
Referring to fig. 1 to 6 (solid arrows in the drawings indicate a flow direction of a refrigerant, and hollow arrows indicate a flow direction of a circulating liquid), an embodiment of the present invention provides a new energy vehicle (not shown) for transportation. It can realize refrigeration or heating function through two different heat exchangers to prevent to fog in the automobile body when switching the state, and change the frost process and can last to the automobile body in heat supply, the passenger experience feels, comfortable practicality. The new energy automobile comprises an automobile body (not shown) and a thermal management system 100. The vehicle body is used for carrying passengers, and the thermal management system 100 is installed in the vehicle body to regulate the air temperature in the vehicle body.
The thermal management system 100 includes a compressor 110, an outdoor heat exchange assembly 120, an indoor evaporation assembly 130, an indoor condensing assembly 140, a heat exchanger 150, a battery thermal management assembly 160, a first throttle 170, and a second throttle 180. Wherein, the compressor 110 is oppositely provided with an outlet end 111 and an inlet end 112, and the outlet end 111 is respectively connected with the outdoor heat exchange assembly 120 and the indoor condensing assembly 140. The outdoor heat exchange assembly 120 is connected to the inlet end 112 through the indoor evaporation assembly 130, the outlet end 111, the outdoor heat exchange assembly 120, the indoor evaporation assembly 130 and the inlet end 112 are combined to form a first refrigerant loop (not shown), the indoor condensation assembly 140 is connected to the inlet end 112 through the outdoor heat exchange assembly 120, and the outlet end 111, the indoor condensation assembly 140, the outdoor heat exchange assembly 120 and the inlet end 112 are combined to form a second refrigerant loop (not shown).
One end of the heat exchanger 150 is connected to the outdoor heat exchange assembly 120, and the other end is connected to the outlet port 111 and the inlet port 112, respectively, and the battery thermal management assembly 160 is connected to the heat exchanger 150. When the heat exchanger 150 is connected to the outlet end 111, the heat exchanger 150, the outdoor heat exchange assembly 120 and the inlet end 112 form a third refrigerant loop (not shown); when the heat exchanger 150 is connected to the inlet port 112, the outlet port 111, the outdoor heat exchange assembly 120, the heat exchanger 150 and the inlet port 112 are combined to form a fourth refrigerant circuit (not shown).
Notably, the outdoor heat exchange assembly 120 includes an outdoor heat exchanger 121 and an outdoor fan 122. The outdoor heat exchanger 121 is used for exchanging heat with a refrigerant, and the outdoor heat exchanger 121 is connected to the indoor evaporation assembly 130 and the indoor condensation assembly 140, respectively, so as to convey the refrigerant. The outdoor fan 122 is disposed at an interval from the outdoor heat exchanger 121, and the position of the outdoor fan 122 corresponds to that of the outdoor heat exchanger 121, the outdoor fan 122 is communicated with the outside, and the outdoor fan 122 is configured to discharge hot air or cold air of the outdoor heat exchanger 121 to the outside through air cooling so as to blow out hot air or cold air to the outside.
It should be noted that the outdoor heat exchanger 121 is respectively connected to the first throttle valve 170 and the second throttle valve 180, the first throttle valve 170 is disposed in the first refrigerant circuit and the second refrigerant circuit, and the second throttle valve 180 is disposed in the third refrigerant circuit and the fourth refrigerant circuit. The first throttle valve 170 is respectively connected with the indoor evaporation assembly 130 and the indoor condensation assembly 140, and in the first refrigerant loop, the outdoor heat exchanger 121 is connected with the indoor evaporation assembly 130 through the first throttle valve 170; in the second refrigerant circuit, the indoor condensing unit 140 is connected to the outdoor heat exchanger 121 through a first throttle valve 170. The second throttle valve 180 is connected to the heat exchanger 150, and in the third refrigerant circuit, the heat exchanger 150 is connected to the outdoor heat exchanger 121 through the second throttle valve 180; in the fourth refrigerant circuit, the exterior heat exchanger 121 is connected to the heat exchanger 150 through the second throttle valve 180.
The indoor evaporation assembly 130 includes a first fan 131, an indoor evaporator 132, and a first cutoff valve 133. The outdoor heat exchange assembly 120 is connected to the indoor evaporator 132 through a first cut-off valve 133, the first cut-off valve 133 is used to cut off or conduct the refrigerant into the indoor evaporator 132, and can prevent the refrigerant from accumulating, and the indoor evaporator 132 is used to exchange heat with the refrigerant. The first fan 131 is disposed at an interval from the indoor evaporator 132, and the position of the first fan 131 corresponds to that of the indoor evaporator 132, the first fan 131 is communicated with the inside of the vehicle body, and the first fan 131 is used for discharging cold air of the indoor evaporator 132 into the vehicle body through air cooling so as to blow out the cold air to the outside.
The indoor condensing unit 140 includes a second fan 141, an indoor condenser 142, and a second cutoff valve 143. The outlet end 111 is connected to the interior condenser 142 through a second cutoff valve 143, the second cutoff valve 143 blocking or conducting the refrigerant from entering the interior condenser 142 and preventing the refrigerant from accumulating, and the interior condenser 142 exchanging heat with the refrigerant. The second fan 141 and the indoor condenser 142 are disposed at an interval and at a position corresponding to each other, the second fan 141 is communicated with the inside of the vehicle body, and the second fan 141 is used for discharging hot air of the indoor condenser 142 into the vehicle body through air cooling so as to blow out hot air to the outside.
The battery thermal management assembly 160 includes a battery module 161, a water pump 162, an auxiliary heating member 163, a three-way valve 164, and a radiator 165. The water pump 162, the battery module 161 and the heat exchanger 150 are connected end to end and combined to form a circulating water path, the water pump 162 is used for driving circulating liquid to flow in the circulating water path, the heat exchanger 150 is used for exchanging heat of the battery module 161 through the circulating liquid, and the circulating liquid can transfer heat of the heat exchanger 150 to the battery module 161. The auxiliary heating member 163 is installed in the circulation water route, and is set up between heat exchanger 150 and battery module 161, and the auxiliary heating member 163 is used for assisting to heat the circulating water to improve the rate of heating, reduce compressor 110 operating pressure ratio, improve the energy efficiency. Specifically, the auxiliary heating member 163 is a thermistor to generate heat during energization to heat the circulating water.
The water pump 162 is connected to the three-way valve 164, the three-way valve 164 is connected to the radiator 165 and the heat exchanger 150, the radiator 165 is connected in parallel to the heat exchanger 150, and one end of the radiator 165 remote from the three-way valve 164 is connected to one end of the heat exchanger 150 remote from the three-way valve 164. Specifically, the three-way valve 164 is a three-way flow control valve, and the three-way valve 164 can control the flow of the circulation liquid into the radiator 165 and the heat exchanger 150.
In this embodiment, the water pump 162 is provided with an output port 166 and a return port 167 facing each other. The output port 166 is connected with the heat exchanger 150, the return port 167 is connected with the battery module 161, the circulating liquid output from the output port 166 sequentially passes through the heat exchanger 150, the auxiliary heating member 163 and the battery module 161 and enters the return port 167, namely, the circulating liquid heated by the auxiliary heating member 163 can reach the battery module 161 in the shortest time, and heat is transferred to the battery module 161, so that the heating efficiency of the battery module 161 is improved.
It should be noted that, in the present embodiment, the thermal management system 100 further includes a third stop valve 190, a fourth stop valve 200, a fifth stop valve 210, and a sixth stop valve 220. The third cut-off valve 190 is installed in the first refrigerant circuit and disposed between the outlet end 111 of the compressor 110 and the outdoor heat exchanger 121 to open or close the first refrigerant circuit. The fourth stop valve 200 is installed in the second refrigerant circuit and disposed between the inlet end 112 of the compressor 110 and the outdoor heat exchanger 121 to open or close the second refrigerant circuit. The fifth stop valve 210 is installed in the third refrigerant circuit and disposed between the outlet end 111 of the compressor 110 and the heat exchanger 150 to open or close the third refrigerant circuit. The sixth shutoff valve 220 is installed in the fourth refrigerant circuit and disposed between the inlet end 112 of the compressor 110 and the heat exchanger 150 to open or close the fourth refrigerant circuit.
It should be noted that, in the cooling mode, the first stop valve 133 and the third stop valve 190 are opened, the remaining stop valves are closed, the first refrigerant loop is turned on, the high-temperature and high-pressure gaseous refrigerant output from the outlet end 111 enters the outdoor heat exchanger 121, is condensed into a high-pressure normal-temperature liquid refrigerant, then enters the first throttle valve 170, is throttled and then becomes a low-temperature and low-pressure gas-liquid mixed refrigerant, then enters the indoor evaporator 132, is evaporated into a low-temperature and low-pressure gaseous refrigerant, and returns to the inlet end 112, in this process, the outdoor fan 122 blows out hot air to the outside, and the first fan 131 blows out cold air into the vehicle body.
In the heating mode, the second stop valve 143 and the fourth stop valve 200 are opened, the remaining stop valves are closed, the second refrigerant circuit is connected, the refrigerant output from the outlet end 111 enters the indoor condenser 142, is condensed into a high-pressure normal-temperature liquid refrigerant, then enters the first throttle valve 170, is throttled and then becomes a low-temperature low-pressure gas-liquid mixed refrigerant, then enters the outdoor heat exchanger 121, is evaporated into a low-temperature low-pressure gas refrigerant, and returns to the inlet end 112, in the process, the outdoor fan 122 blows out cold air to the outside, and the second fan 141 blows out hot air into the vehicle body.
When the external humidity is high, if the interior of the vehicle body is heated, frost may be formed on the surface of the outdoor heat exchanger 121 after a period of time, which may affect the heat exchange efficiency, and thus the outdoor heat exchanger 121 needs to be defrosted. In the defrosting mode, the third stop valve 190, the second stop valve 143, and the sixth stop valve 220 are opened, the remaining stop valves are closed, the high-temperature and high-pressure gaseous refrigerant output from the outlet end 111 is divided into two parts, the first part enters the outdoor heat exchanger 121 to be condensed into a high-pressure normal-temperature liquid refrigerant to melt frost on the surface of the outdoor heat exchanger 121, the second part enters the indoor condenser 142 to be condensed into a high-pressure normal-temperature liquid refrigerant to output hot gas into the vehicle body, then enters the first throttle valve 170 to be throttled into a low-temperature and low-pressure gas-liquid mixed refrigerant, and then enters the second throttle valve 180 after being merged with the first part of the high-pressure normal-temperature liquid refrigerant, after being throttled, the low-temperature and low-pressure gaseous refrigerant is further converted into a low-temperature gas-liquid mixed refrigerant, and then enters the heat exchanger 150 to be evaporated into a low, the second fan 141 blows hot air into the vehicle body, the water pump 162 controls the circulation liquid to flow in the circulation water flow, the heat exchanger 150 absorbs the heat of the circulation liquid, and the circulation liquid is cooled.
When the battery module 161 needs to be cooled, there are two cases, one is to cool the battery module 161 only by using the heat sink 165 when the temperature of the battery module 161 is high but does not exceed the preset value, and the other is to cool the battery module 161 by using the heat sink 165 and the compressor 110 when the temperature of the battery module 161 exceeds the preset value.
When the temperature of the battery module 161 is high but not higher than the preset value, all the stop valves are closed, the three-way valve 164 controls the water pump 162 to be connected with the radiator 165 only, the water pump 162, the radiator 165, the auxiliary heating element 163 and the battery module 161 are combined to form a cooling water path, the radiator 165 performs air cooling on the circulating liquid, the temperature of the circulating liquid is reduced, and therefore the temperature of the battery module 161 is reduced.
When the temperature of the battery module 161 exceeds the preset value, the third stop valve 190 and the sixth stop valve 220 are opened, the rest stop valves are closed, the fourth refrigerant loop is conducted, the high-temperature high-pressure gaseous refrigerant output from the outlet end 111 enters the outdoor heat exchanger 121, is condensed to form high-pressure normal-temperature liquid refrigerant, then enters the second throttle valve 180, is throttled to become low-temperature low-pressure gas-liquid mixed refrigerant, then enters the heat exchanger 150, is evaporated to form low-temperature low-pressure gaseous refrigerant, and returns to the inlet end 112, meanwhile, the three-way valve 164 controls the water pump 162 to be respectively connected with the radiator 165 and the heat exchanger 150, on one hand, the water pump 162, the radiator 165, the auxiliary heating element 163 and the battery module 161 are combined to form a cooling water path, the radiator 165 performs air cooling on the circulating liquid to reduce the temperature of, thereby reducing the temperature of the battery module 161.
When the battery module 161 needs to be heated, the fourth stop valve 200 and the fifth stop valve 210 are opened, the rest stop valves are closed, the third refrigerant loop is conducted, the refrigerant output from the outlet end 111 enters the heat exchanger 150, is condensed to form a high-pressure normal-temperature liquid refrigerant, then enters the second throttle valve 180, is changed into a low-temperature low-pressure gas-liquid mixed refrigerant after being throttled, then enters the outdoor heat exchanger 121, is evaporated to form a low-temperature low-pressure gas refrigerant, and returns to the inlet end 112, in the process, the outdoor fan 122 blows out cold air to the outside, the heat exchanger 150 transfers heat to the circulating liquid, and the temperature of the circulating liquid is increased, so that the temperature of the battery module 161.
In the thermal management system 100 provided in the embodiment of the present invention, the compressor 110 is oppositely provided with the outlet end 111 and the inlet end 112, the outlet end 111 is respectively connected to the outdoor heat exchange assembly 120 and the indoor condensation assembly 140, the outdoor heat exchange assembly 120 is connected to the inlet end 112 through the indoor evaporation assembly 130, the indoor condensation assembly 140 is connected to the inlet end 112 through the outdoor heat exchange assembly 120, one end of the heat exchanger 150 is connected to the outdoor heat exchange assembly 120, the other end is respectively connected to the outlet end 111 and the inlet end 112, and the battery thermal management assembly 160 is connected to the heat exchanger 150. Compared with the prior art, the heat management system 100 provided by the invention adopts the indoor evaporation component 130, the indoor condensation component 140 and the heat exchanger 150 which are respectively connected with the outdoor heat exchanger 121, so that the refrigeration or heating function can be realized through two different heat exchangers, the fog in the vehicle body is prevented when the state is switched, the heat can be continuously supplied to the vehicle body in the defrosting process, the passenger experience is good, and the new energy vehicle is comfortable and practical and is popular with users.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A heat management system is characterized by comprising a compressor, an outdoor heat exchange assembly, an indoor evaporation assembly, an indoor condensation assembly, a heat exchanger, a battery heat management assembly, a first stop valve, a second stop valve and a third stop valve; the compressor is oppositely provided with an outlet end and an inlet end, the outlet end is connected with the outdoor heat exchange assembly through the third stop valve, the outlet end is also connected with the indoor condensation assembly through the second stop valve, the outdoor heat exchange assembly is connected with the inlet end through the first stop valve and the indoor evaporation assembly, and the indoor condensation assembly is connected with the inlet end through the outdoor heat exchange assembly; one end of the heat exchanger is connected with the outdoor heat exchange assembly, and the other end of the heat exchanger is respectively connected with the outlet end and the inlet end; the battery thermal management assembly is connected with the heat exchanger; when the heat management system defrosts the outdoor heat exchange assembly, the first stop valve is closed, the second stop valve and the third stop valve are both opened, after the refrigerant flows out from the outlet end of the compressor, a part of the refrigerant flows through the third stop valve, the outdoor heat exchange assembly and the heat exchanger in sequence and then flows back to the inlet end of the compressor, and the other part of the refrigerant flows through the second stop valve, the indoor condensation assembly and the heat exchanger in sequence and then flows back to the inlet end of the compressor.
2. The thermal management system of claim 1, wherein the outdoor heat exchange assembly comprises an outdoor heat exchanger and an outdoor fan, the outdoor heat exchanger is connected with the indoor evaporation assembly and the indoor condensation assembly respectively, and the outdoor fan and the outdoor heat exchanger are arranged at an interval and in a position corresponding to each other.
3. The thermal management system of claim 2, further comprising first and second throttles, the outdoor heat exchanger being connected to the first and second throttles, respectively, the first throttles being connected to the indoor evaporation assembly and the indoor condensation assembly, respectively, the second throttles being connected to the heat exchanger.
4. The heat management system according to claim 1, wherein the indoor evaporation assembly comprises a first fan and an indoor evaporator, the outdoor heat exchange assembly is connected with the indoor evaporator through the first stop valve, and the first fan and the indoor evaporator are spaced and are located correspondingly.
5. The thermal management system of claim 1, wherein the indoor condensing assembly comprises a second fan and an indoor condenser, the outlet end is connected with the indoor condenser through the second stop valve, and the second fan and the indoor condenser are arranged at intervals and in corresponding positions.
6. The thermal management system of claim 1, wherein the battery thermal management assembly comprises a battery module and a water pump, the battery module and the heat exchanger are connected end to end and combined to form a circulation water path, the water pump is used for driving a circulation liquid to flow in the circulation water path, and the heat exchanger is used for exchanging heat with the battery module through the circulation liquid.
7. The thermal management system of claim 6, wherein the battery thermal management assembly further comprises an auxiliary heating element mounted within the circulating water path and disposed between the heat exchanger and the battery module.
8. The thermal management system according to claim 7, wherein the water pump is provided with an output port and a return port, the output port is connected with the heat exchanger, the return port is connected with the battery module, and the circulating liquid output from the output port sequentially passes through the heat exchanger, the auxiliary heating element and the battery module and enters the return port.
9. The thermal management system of claim 6, wherein the battery thermal management assembly further comprises a three-way valve and a heat sink, the water pump is coupled to the three-way valve, the three-way valve is coupled to the heat sink and the heat exchanger, respectively, and an end of the heat sink remote from the three-way valve is coupled to an end of the heat exchanger remote from the three-way valve.
10. A new energy automobile, characterized by comprising the thermal management system according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910130733.XA CN109664721B (en) | 2019-02-21 | 2019-02-21 | Thermal management system and new energy automobile |
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| CN201910130733.XA CN109664721B (en) | 2019-02-21 | 2019-02-21 | Thermal management system and new energy automobile |
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| CN109664721A CN109664721A (en) | 2019-04-23 |
| CN109664721B true CN109664721B (en) | 2021-02-12 |
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| FR3105381A1 (en) * | 2019-12-18 | 2021-06-25 | Valeo Systemes Thermiques | Method of defrosting a thermal regulation circuit for a vehicle, in particular for a motor vehicle |
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| WO2017195971A1 (en) * | 2016-05-11 | 2017-11-16 | 엘지전자 주식회사 | Vehicular refrigerating cycle device |
| CN207683371U (en) * | 2017-12-08 | 2018-08-03 | 珠海长欣汽车智能***有限公司 | A kind of vehicle temperature control system with oil |
| CN108592441A (en) * | 2018-05-21 | 2018-09-28 | 江西江铃集团新能源汽车有限公司 | Thermal management system of electric automobile |
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