CN113232484A - Heat management method of air conditioner/heat pump system of new energy automobile - Google Patents
Heat management method of air conditioner/heat pump system of new energy automobile Download PDFInfo
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- CN113232484A CN113232484A CN202110619305.0A CN202110619305A CN113232484A CN 113232484 A CN113232484 A CN 113232484A CN 202110619305 A CN202110619305 A CN 202110619305A CN 113232484 A CN113232484 A CN 113232484A
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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
- B60H1/00321—Heat exchangers for air-conditioning 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
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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
- B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
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Abstract
A heat management method of an air-conditioning/heat pump system of a new energy automobile comprises a four-way reversing valve, wherein a port B of the four-way reversing valve is connected with an outlet of a compressor, a port C of the four-way reversing valve is connected with an inlet of the compressor, a port A of the four-way reversing valve is connected with an inlet of a heat exchanger through a valve eight, the port A of the four-way reversing valve is connected with an inlet of an external heat exchanger through a valve nine, a port D of the four-way reversing valve is connected with an inlet of an internal heat exchanger through a valve five, the port D of the internal heat exchanger is connected with an inlet of the heat exchanger through a valve six, an inlet of the internal heat exchanger is connected with an inlet of the external heat exchanger through a valve four, an outlet of the internal heat exchanger is connected with an outlet of the external heat exchanger through a valve three, the outlet of an expansion valve two of the heat exchanger is connected with an outlet of an expansion valve through a valve seven of the outlet of the external heat exchanger, when heat management requirements of a passenger compartment are just complementary with heat management requirements of heat loads, the heat of the thermal load is directly used for heating the passenger compartment or the heat of the passenger compartment is used for preheating the power load.
Description
The invention is a divisional application of patent CN 201911163394.1.
Technical Field
The invention belongs to the technical field of new energy automobile heat management, and particularly relates to a heat management method of a new energy automobile air conditioner/heat pump system.
Background
While the transportation industry is developed vigorously, a large amount of fossil energy consumption and fuel combustion emission are inevitably brought. The heat efficiency of the automobile engine, the energy utilization system of the automobile, the energy consumption and the pollutant discharge amount are directly hooked. In order to improve the energy utilization rate, change an energy utilization system and realize electric, new energy and clean traffic, new energy automobiles are highly concerned in recent years and are an extremely advantageous traffic problem solution.
At present, all heat management branches of the existing whole new energy automobile heat management system are independent, and a power load heat management system and heat management systems such as an air conditioner and the like are not integrated, so that the utilization rate of space in an automobile is low, and heat cannot be reasonably distributed and matched. Even if the system is considered in the aspect, the system is relatively simple in form, low in integration level, limited in meeting working conditions, and relatively traditional and simple in energy utilization mode, and there is still room for improvement. The reasonable air conditioner/heat pump system can meet the thermal management requirement of power load, enhance the thermal management effect, greatly reduce the energy utilization rate of the vehicle and solve the problems of mileage anxiety and the like of the existing new energy automobile.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a heat management method of a new energy automobile air conditioning/heat pump system, wherein the heat management requirement of a passenger cabin is just complementary with the heat management requirement of a heat load, and the heat of the heat load can be directly used for heating the passenger cabin or used for preheating a power load.
In order to achieve the purpose, the invention adopts the technical scheme that:
a heat management method of an air-conditioning/heat pump system of a new energy automobile comprises a four-way reversing valve, wherein a port B of the four-way reversing valve is connected with an outlet of a compressor, a port C of the four-way reversing valve is connected with an inlet of the compressor, a port A of the four-way reversing valve is connected with an inlet of a heat exchanger through a valve eight, the port A of the four-way reversing valve is connected with an inlet of an external heat exchanger through a valve nine, a port D of the four-way reversing valve is connected with an inlet of an internal heat exchanger through a valve five, the port D of the internal heat exchanger is connected with an inlet of the heat exchanger through a valve six, an inlet of the internal heat exchanger is connected with an inlet of the external heat exchanger through a valve four, an outlet of the internal heat exchanger is connected with an outlet of the external heat exchanger through a valve three, the port D of the expansion valve is connected with an outlet of an expansion valve through a seven of the outlet of the external heat exchanger, and is characterized in that when the heat management requirement of a passenger compartment is just complementary with the heat management requirement of a heat load, directly heating the passenger compartment by using the heat of the heat load or preheating the passenger compartment by using the heat of the passenger compartment as the power load, wherein a circulation loop for heating the passenger compartment by using the heat of the heat load is as follows: the compressor-four-way reversing valve-valve five-internal heat exchanger-valve two-expansion valve-valve seven-heat exchanger-valve eight-four-way reversing valve-compressor, the preheating circulation loop using heat of passenger cabin as power load is: the compressor is a four-way reversing valve, a valve eight heat exchanger, a valve seven, an expansion valve, a valve two internal heat exchanger, a valve five, a four-way reversing valve and the compressor.
Compared with the prior art, the heat source is adjusted through the valve, the internal heat exchanger, the external heat exchanger and the heat exchanger can be mutually combined to serve as the heat source or the cold source, the heating and refrigerating requirements in the passenger compartment are met, the functions of heat dissipation/waste heat recovery or heating on the power system are not influenced, and the heat management requirements in the vehicle can be reasonably distributed. The whole set of heat pump/air conditioning system can be regulated and controlled to 6 operation modes, 12 use working conditions are met, the flexibility, the integration level, the adaptation working conditions and the heat regulation and control distribution capacity of the heat pump/air conditioning system are higher than those of the existing system, the vehicle can regulate and control the heat management system at will to adapt to changeable working conditions, the energy utilization efficiency of the whole vehicle is improved, and the heat pump/air conditioning system has a great application value.
The invention claims a management method under the condition that the thermal management requirement of the passenger compartment is just complementary with the thermal management requirement of the thermal load.
Drawings
Fig. 1 shows a new energy automobile air conditioning/heat pump system of the present invention.
Fig. 2 is a diagram of a first circulation loop of the air conditioning/heat pump system of the present invention.
Fig. 3 is a diagram of a second circulation circuit of the air conditioning/heat pump system of the present invention.
Fig. 4 is a third circuit diagram of the air conditioning/heat pump system of the present invention.
Fig. 5 is a diagram of a fourth cycle of the air conditioning/heat pump system of the present invention.
Fig. 6 is a fifth circulation circuit diagram of the air conditioning/heat pump system of the present invention.
Fig. 7 is a sixth circulation loop diagram of the air conditioning/heat pump system of the present invention.
FIG. 8 is a four-way reversing valve and port arrangement for the same according to the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 1 and 8, the air-conditioning/heat pump system of the new energy automobile comprises a four-way reversing valve 10, wherein a port B of the four-way reversing valve 10 is connected with an outlet of a compressor 11, a port C of the four-way reversing valve is connected with an inlet of the compressor 11, a port a of the four-way reversing valve is connected with an inlet of one side of a heat exchanger 14 through a valve eight 8, the inlet of the external heat exchanger 12 is connected through a valve nine 9, the D port is connected with the inlet of the internal heat exchanger 13 through a valve five 5, the inlet of one side of the heat exchanger 14 is connected through a valve six 6, the inlet of the inner heat exchanger 13 is connected with the inlet of the outer heat exchanger 12 through a valve four 4, the outlet of the inner heat exchanger 13 is connected with the outlet of the outer heat exchanger 12 through a valve three 3, the outlet of the expansion valve 15 is connected through a valve II 2, the outlet of one side of the heat exchanger 14 is connected with the outlet of the external heat exchanger 12 through a valve seventh 7, the first valve 1 is connected with the outlet of the expansion valve 15, and the inlet of the expansion valve 15 is connected with the outlet of the external heat exchanger 12. The inlet/outlet on the other side of the heat exchanger 14 is in communication with a vehicle thermal load flow medium for additional thermal management of the power load.
According to the above structure, the inlet of the external heat exchanger 12 may be connected in parallel with the inlet of the internal heat exchanger 13 through the valve four 4, or connected in parallel with the inlet of the heat exchanger 14 through the valve eight 8; the outlet of the external heat exchanger 12 can be connected with the outlet of the internal heat exchanger 13 in parallel through a valve III 3, or connected with the outlet of the heat exchanger 14 in parallel through a valve VII 7; the inlet of the internal heat exchanger 13 can be communicated with the inlet of the external heat exchanger 12 in parallel through a valve four 4, and can also be connected with the inlet of the heat exchanger 14 in parallel through a valve five 5; the outlet of the internal heat exchanger 13 can be connected with the outlet of the external heat exchanger 12 in parallel through a valve III 3, and can also be connected with the outlet of the heat exchanger 14 in parallel through a valve I1; the inlet of the heat exchanger 14 can be connected with the inlet of the internal heat exchanger 13 in parallel through a valve six 6, and can also be connected with the inlet of the external heat exchanger 12 in parallel through a valve eight 8; the outlet of the heat exchanger 14 can be connected with the outlet of the internal heat exchanger 13 in parallel through a valve I1, and can also be connected with the outlet of the external heat exchanger 12 in parallel through a valve VII 7; an inlet of the expansion valve 15 is selectively connected with an outlet of the external heat exchanger 12, an outlet of the heat exchanger 14 and an outlet of the internal heat exchanger 13; the outlet of the expansion valve 15 can be selectively connected with the outlet of the external heat exchanger 12, the outlet of the heat exchanger 14 and the outlet of the internal heat exchanger 13.
According to the air-conditioning/heat pump system of the new energy automobile, the on-off of the valve is controlled, 6 operation modes can be switched into according to the real-time operation condition of the automobile, as shown in fig. 2-7, and the concrete working conditions meeting 12 vehicle operation working conditions are detailed as follows. Wherein the inner heat exchanger 13 is used to meet the passenger compartment thermal management requirements, the heat exchanger 14 is used to meet the thermal load thermal management requirements, and the outer heat exchanger 12 uses the external environment as a heat source.
Fig. 2 is a diagram of a first cycle of the air conditioning/heat pump system of the present invention, in which the internal heat exchanger 13 and the heat exchanger 14 use the same heat source. The first circulation loop can specifically satisfy two vehicle operating conditions:
when the heat load loop and the passenger cabin need refrigeration, heat is absorbed from the heat load loop and the passenger cabin, and heat is released to the environment, and the specific circulation loop is as follows: the compressor 11-the four-way reversing valve 10-the valve nine 9-the external heat exchanger 12-the expansion valve 15-the branch flows in the valve one 1, the valve two 2-the internal heat exchanger 13, the heat exchanger 14-the valve five 5, the valve six 6-the branch flows in the four-way reversing valve 10-the compressor 11. The circulation principle is as follows: the saturated liquid working medium is divided into two paths of internal heat exchangers 13 and 14 to respectively absorb heat dissipated by heat load in the passenger cabin and become dry saturated gas state or overheated gas state, and then the two paths are converged and enter the compressor 11. The working medium is compressed by the compressor to enter the external heat exchanger 12 in an overheat gas state, the heat is released to the atmospheric environment to be changed into a saturated liquid state, and then the working medium enters the expansion valve 15 to reduce the pressure and reduce the temperature to a circulation initial state, so that a circulation is completed.
When the heat load loop and the passenger cabin are required to be heated, the heat energy of the environment is absorbed and is released to the power load and the passenger cabin environment, and the specific circulating loop is as follows: the compressor 11-the four-way reversing valve 10-is shunted to the valve five 5, the valve six 6-the internal heat exchanger 13, the heat exchanger 14-the valve one 1, the valve two 2-the expansion valve 15-the external heat exchanger 12-the valve nine 9-is confluent to the four-way reversing valve 10-the compressor 11. The circulation principle is as follows: the saturated liquid working medium absorbs the heat of the atmospheric environment in the external heat exchanger 12 and becomes a dry saturated gas state or a superheated gas state, and then enters the compressor 11. After being compressed by the compressor, the working medium is divided into superheated gas to enter the internal heat exchanger 13 and the heat exchanger 14 to provide heat for the passenger compartment and the heat load heat exchanger and change into saturated liquid. Then the working medium enters an expansion valve 15 to reduce the pressure and reduce the temperature to the initial state of the cycle, and a cycle is completed.
Fig. 3 is a diagram of a second cycle of the air conditioning/heat pump system of the present invention, wherein the external heat exchanger 12 and the heat exchanger 14 use the same heat source. The second circulation loop can specifically satisfy two vehicle operating conditions:
when the heat load loop needs to heat and the passenger compartment needs to refrigerate, the heat in the passenger compartment is transferred to the heat load loop, if the heat in the passenger compartment is larger than the heat required by the heat load at the moment, a part of heat is shunted through the external heat exchanger loop, and the circulation loop is as follows: the compressor 11-the four-way reversing valve 10-is shunted to the valve nine 9, the valve eight 8-the external heat exchanger 12, the heat exchanger 14 and the valve seven 7-the expansion valve 15-the valve two 2-the internal heat exchanger 13-the valve five 5-is confluent to the four-way reversing valve 10-the compressor 11. The circulation principle is as follows: the saturated liquid working medium absorbs the ambient heat of the passenger compartment in the internal heat exchanger 13 and becomes a dry saturated gas state or a superheated gas state, and then enters the compressor 11. After being compressed by the compressor, the working medium is shunted in an overheated gas state to enter the external heat exchanger 12 and the heat exchanger 14 to provide heat for the atmospheric environment and the heat load heat exchanger and is changed into a saturated liquid state. Then the working medium enters an expansion valve 15 to reduce the pressure and reduce the temperature to the initial state of the cycle, and a cycle is completed.
When the heat load needs to be refrigerated and the passenger cabin needs to be heated, the heat of the heat load is transferred to the passenger cabin, if the heat of the heat load is not enough to meet the heat required by the passenger cabin, the external environment is used as a heat source through an external heat exchanger to provide extra heat, and a circulation loop is as follows: the compressor 11-four-way reversing valve 10-valve five 5-internal heat exchanger 13-valve two 2-expansion valve 15-flow-divided in external heat exchanger 12, valve seven 7-valve nine 9, heat exchanger 14 and valve eight 8-flow-combined in four-way reversing valve 10-compressor 11. The circulation principle is as follows: the saturated liquid working medium is divided into two paths, an external heat exchanger 12 and a heat exchanger 14 respectively absorb heat emitted by heat load in the atmosphere environment and become dry saturated gas state or overheated gas state, and then the two paths are converged and enter the compressor 11. The working medium is compressed by the compressor to enter the internal heat exchanger 13 in an overheat gas state, heat is released to the environment of the passenger cabin to be changed into a saturated liquid state, and then the working medium enters the expansion valve 15 to reduce pressure and reduce temperature to a circulation initial state, so that a circulation is completed.
Fig. 4 is a third circuit diagram of the air conditioning/heat pump system of the present invention, wherein the internal heat exchanger and the external heat exchanger use the same heat source. The third circulation loop can specifically satisfy two vehicle operating conditions:
when the passenger cabin needs heating and the heat load needs cooling, the heat dissipating capacity of the heat load can be transferred into the passenger cabin, but the heat dissipating capacity of the heat load is larger than the heat needed by the passenger cabin, and the heat dissipating capacity of the heat load can be partially shunted by using the external heat exchanger. A specific circulation loop: the compressor 11-four-way reversing valve 10-valve nine 9-flow-divided in valve four 4 and inner heat exchanger 13 and valve three 3, external heat exchanger 12-flow-merged in expansion valve 15-valve one 1-heat exchanger 14-valve six 6-four-way reversing valve 10-compressor 11. The circulation principle is as follows: the saturated liquid working medium absorbs the heat dissipated by the heat load in the heat exchanger 14 and becomes a dry saturated gaseous state or a superheated gaseous state before entering the compressor 11. After being compressed by the compressor, the working medium is shunted in an overheated gas state to enter the external heat exchanger 12 and the internal heat exchanger 13 to provide heat for the atmospheric environment and the passenger cabin environment and is changed into a saturated liquid state. Then the working medium enters an expansion valve 15 to reduce the pressure and reduce the temperature to the initial state of the cycle, and a cycle is completed.
When the passenger compartment needs to be cooled and the heat load needs to be heated, the heat of the passenger compartment can be transferred to the heat load, but if the heat in the passenger compartment is not enough to meet the heating requirement of the heat load, the extra heat can be obtained from the external environment through the external heat exchanger. A specific circulation loop: the compressor 11-four-way reversing valve 10-valve six 6-heat exchanger 14-valve one 1-expansion valve 15-flow-divided in valve three 3 and inner heat exchanger 13 and valve four 4, external heat exchanger 12-flow-combined in valve nine 9-four-way reversing valve 10-compressor 11. The circulation principle is as follows: the saturated liquid working medium is divided into two paths of external heat exchangers 12 and internal heat exchangers 13 to respectively absorb heat emitted in the atmosphere environment and the passenger cabin environment and become dry saturated gaseous state or overheated gaseous state, and then the two paths of the saturated liquid working medium are converged and enter the compressor 11. The working medium is compressed by the compressor to enter the heat exchanger 14 in an overheat gas state, releases heat to a heat load and becomes a saturated liquid state, and then enters the expansion valve 15 to reduce the pressure and the temperature to a cycle initial state, thereby completing a cycle.
Fig. 5 is a diagram of a fourth cycle of the air conditioning/heat pump system according to the present invention, in which the passenger compartment has no heat management requirement, and only the heat load has the heat management requirement, and the external environment is used to heat or dissipate the heat of the heat load.
Wherein the circulation loop for heat dissipation of the heat load is as follows: compressor 11-four-way reversing valve 10-valve nine 9-external heat exchanger 12-expansion valve 15-valve one 1-heat exchanger 14-valve six 6-four-way reversing valve 10-compressor 11. The circulation principle is as follows: the saturated liquid working medium absorbs the heat dissipated by the heat load in the heat exchanger 14 and becomes a dry saturated gaseous state or a superheated gaseous state before entering the compressor 11. The working medium is compressed by the compressor to enter the external heat exchanger 12 in an overheat gas state, releases heat to the atmospheric environment and becomes a saturated liquid state, and then enters the expansion valve 15 to reduce the pressure and reduce the temperature to a cycle initial state, thereby completing a cycle.
Wherein the circulation loop for preheating the heat load is as follows: compressor 11-four-way reversing valve 10-valve six 6-heat exchanger 14-valve one 1-expansion valve 15-external heat exchanger 12-valve nine 9-four-way reversing valve 10-compressor 11. The circulation principle is as follows: the saturated liquid working medium absorbs the heat of the atmosphere in the external heat exchanger 12 and becomes a dry saturated gas state or a superheated gas state, and then enters the compressor 11. The working medium is compressed by the compressor to enter the heat exchanger 14 in an overheat gas state, releases heat to a heat load and becomes a saturated liquid state, and then enters the expansion valve 15 to reduce the pressure and the temperature to a cycle initial state, thereby completing a cycle.
Fig. 6 is a diagram of a fifth cycle of the air conditioning/heat pump system of the present invention, in which the heat load has no additional heat management requirement, only the passenger compartment has a heat management requirement, and the external environment is used as a heat source to heat or cool the passenger compartment.
Wherein the circulation loop for refrigerating the passenger compartment is as follows: the heat exchanger comprises a compressor 11, a four-way reversing valve 10, a valve nine 9, an external heat exchanger 12, an expansion valve 15, a valve two 2, an internal heat exchanger 13, a valve five 5, a four-way reversing valve 10 and a compressor 11. The circulation principle is as follows: the saturated liquid working medium absorbs the heat of the atmosphere in the internal heat exchanger 13 and becomes a dry saturated gas state or a superheated gas state, and then enters the compressor 11. The working medium is compressed by the compressor to enter the external heat exchanger 12 in an overheat gas state, releases heat to the atmospheric environment and becomes a saturated liquid state, and then enters the expansion valve 15 to reduce the pressure and reduce the temperature to a cycle initial state, thereby completing a cycle.
Wherein the circulation loop for heating the passenger compartment is: the system comprises a compressor 11, a four-way reversing valve 10, a valve five 5, an internal heat exchanger 13, a valve two 2, an expansion valve 15, an external heat exchanger 12, a valve nine 9, a four-way reversing valve 10 and a compressor 11. The circulation principle is as follows: the saturated liquid working medium absorbs the heat of the atmosphere in the external heat exchanger 12 and becomes a dry saturated gas state or a superheated gas state, and then enters the compressor 11. The working medium is compressed by the compressor to enter the internal heat exchanger 13 in an overheat gas state, releases heat to the environment of the passenger compartment and becomes a saturated liquid state, and then enters the expansion valve 15 to reduce the pressure and reduce the temperature to the initial state of circulation, thereby completing a cycle.
Fig. 7 is a diagram of a sixth cycle of the air conditioning/heat pump system of the present invention, when the passenger compartment thermal management requirements are just complementary to the thermal management requirements of the heat load. The heat of the heat load can be directly used for heating the passenger compartment or the heat of the passenger compartment can be used for preheating the power load.
Wherein the heat load heat is utilized to heat the passenger compartment, and the circulation loop comprises the following steps: the system comprises a compressor 11, a four-way reversing valve 10, a valve five 5, an internal heat exchanger 13, a valve two 2, an expansion valve 15, a valve seven 7, a heat exchanger 14, a valve eight 8, a four-way reversing valve 10 and a compressor 11. The saturated liquid working medium absorbs the heat of the heat load in the heat exchanger 14 and becomes a dry saturated gaseous state or a superheated gaseous state before entering the compressor 11. The working medium is compressed by the compressor and then enters the internal heat exchanger 13 in an overheated gas state, releases heat to a thermal load and changes into a saturated liquid state, and then enters the expansion valve 15 to reduce the pressure and the temperature to a cycle initial state, thereby completing a cycle.
Wherein, the preheating circulation loop using the heat of the passenger compartment as the power load is as follows: the heat exchanger comprises a compressor 11, a four-way reversing valve 10, a valve eight 8, a heat exchanger 14, a valve seven 7, an expansion valve 15, a valve two 2, an internal heat exchanger 13, a valve five 5, a four-way reversing valve 10 and a compressor 11. The circulation principle is as follows: the saturated liquid working medium absorbs the heat of the atmosphere in the internal heat exchanger 13 and becomes a dry saturated gas state or a superheated gas state, and then enters the compressor 11. The working medium is compressed by the compressor to enter the heat exchanger 14 in an overheat gas state, releases heat to a heat load and becomes a saturated liquid state, and then enters the expansion valve 15 to reduce the pressure and the temperature to a cycle initial state, thereby completing a cycle.
Claims (1)
1. A heat management method of an air-conditioning/heat pump system of a new energy automobile comprises a four-way reversing valve (10), wherein a port B of the four-way reversing valve (10) is connected with an outlet of a compressor (11), a port C of the four-way reversing valve is connected with an inlet of the compressor (11), a port A of the four-way reversing valve is connected with an inlet of one side of a heat exchanger (14) through a valve eight (8), and is connected with an inlet of an external heat exchanger (12) through a valve nine (9), a port D of the four-way reversing valve is connected with an inlet of an internal heat exchanger (13) through a valve five (5), and is connected with an inlet of one side of the heat exchanger (14) through a valve six (6), an inlet of the internal heat exchanger (13) is connected with an inlet of the external heat exchanger (12) through a valve four (4), an outlet of the internal heat exchanger (13) is connected with an outlet of the external heat exchanger (12) through a valve three (3), and is connected with an outlet of an expansion valve (15) through a valve two (2), an outlet at one side of the heat exchanger (14) is connected with an outlet of the external heat exchanger (12) through a valve seven (7), connected with an outlet of the expansion valve (15) through a valve one (1), and an inlet of the expansion valve (15) is connected with an outlet of the external heat exchanger (12), and the heat management system is characterized in that when the heat management requirement of the passenger compartment is just complemented with the heat management requirement of the heat load, the heat load heat is directly utilized to heat the passenger compartment or the heat of the passenger compartment is utilized to preheat the power load, wherein a circulation loop for heating the passenger compartment by utilizing the heat load heat is as follows: the system comprises a compressor (11), a four-way reversing valve (10), a valve five (5), an internal heat exchanger (13), a valve two (2), an expansion valve (15), a valve seven (7), a heat exchanger (14), a valve eight (8), a four-way reversing valve (10), a compressor (11), and a preheating circulation loop for power load by using heat of a passenger compartment, wherein the preheating circulation loop comprises the following steps: compressor (11) -four-way reversing valve (10) -eight valve (8) -heat exchanger (14) -seven valve (7) -expansion valve (15) -two valve (2) internal heat exchanger (13) -five valve (5) -four-way reversing valve (10) -compressor (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110619305.0A CN113232484B (en) | 2019-11-25 | 2019-11-25 | Heat management method of air conditioner/heat pump system of new energy automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911163394.1A CN111002782B (en) | 2019-11-25 | 2019-11-25 | Heat management method for air conditioner/heat pump system of new energy automobile |
| CN202110619305.0A CN113232484B (en) | 2019-11-25 | 2019-11-25 | Heat management method of air conditioner/heat pump system of new energy automobile |
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| CN201911163394.1A Division CN111002782B (en) | 2019-11-25 | 2019-11-25 | Heat management method for air conditioner/heat pump system of new energy automobile |
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Also Published As
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| CN111002782B (en) | 2021-08-27 |
| CN113232484B (en) | 2022-06-21 |
| CN111002782A (en) | 2020-04-14 |
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