Thermal management integrated device for electric automobile

Abstract

The utility model belongs to the technical field of automobile heat management, and particularly relates to an electric automobile heat management integrated device which comprises a battery panel, a first heat conduction plate is arranged on the surface of the battery panel, a cooling water pipe is arranged on the surface of the first heat conduction plate, and a circulating water pump, an evaporator, a compressor and a condenser are arranged on one side of the battery panel. A second heat conduction plate is arranged on the surface of the evaporator, a circulating water pipe is arranged on the surface of the second heat conduction plate, and a connecting water pipe is arranged on the surface of the evaporator. According to the electric automobile heat management integrated device, the first heat conduction plate is arranged to absorb heat generated by the battery panel during working to the evaporator, and a refrigerant in the evaporator passes through the evaporator and the compressor and then is condensed through the condenser, so that the problem that an air conditioner outdoor refrigerant heat exchanger at the front end of an existing automobile cannot meet the heat energy requirement of a passenger compartment is solved; meanwhile, a large amount of waste heat is generated in the working process of components such as a battery motor, but the waste heat cannot be recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile thermal management, in particular to an integrated thermal management device for an electric vehicle. Background Art

[0002] With the advancement of the times, cars have become an important means of transportation in people's daily lives. The integrated thermal management system for electric vehicles is a key system that ensures that electric vehicle batteries, motors, and electronic devices operate within an appropriate temperature range.

[0003] During actual use, due to the gradual increase in the thermal management load of pure electric vehicles and the continuous reduction in the air intake area of ​​the front grille caused by the vehicle styling trend, the air-conditioning outdoor refrigerant heat exchanger installed at the front end of the vehicle can no longer meet the thermal energy requirements of the passenger compartment. At the same time, components such as batteries and motors generate a large amount of waste heat during operation, but the waste heat cannot be recovered and reused, making it inconvenient to use. Utility Model Content

[0004] Based on the technical problem that the existing air-conditioning outdoor refrigerant heat exchanger at the front end of the vehicle can no longer meet the thermal energy requirements of the passenger compartment, and that components such as batteries and motors generate a large amount of waste heat during operation but cannot be recycled, the utility model proposes an electric vehicle thermal management integrated device.

[0005] The utility model proposes an electric vehicle thermal management integrated device, including a battery panel, a first heat conducting plate is provided on the surface of the battery panel, a cooling water pipe is provided on the surface of the first heat conducting plate, a circulating water pump, an evaporator, a compressor and a condenser are respectively provided on one side of the battery panel, a second heat conducting plate is provided on the surface of the evaporator, a circulating water pipe is provided on the surface of the second heat conducting plate, a one-way valve and a temperature sensor are respectively provided at both ends of the circulating water pipe, a connecting water pipe is provided on the surface of the evaporator, a third heat conducting plate is provided on the surface of the condenser, and an expansion valve is provided on the surface of the connecting water pipe.

[0006] Preferably, the surface of the first heat conducting plate is fixedly connected to the surface of the battery panel, the two first heat conducting plates are symmetrically distributed around the axis of the battery panel, and the surfaces of the two first heat conducting plates are fixedly connected to the surface of the cooling water pipe.

[0007] Preferably, the water inlet and outlet ends of the circulating water pipe are fixedly connected to the water outlet and inlet ends of the cooling water pipe respectively, the surface of the circulating water pipe is fixedly connected to the surface of the circulating water pump, the surface of the circulating water pipe is fixedly connected to the surface of the second heat conduction plate, and the surface of the second heat conduction plate is fixedly connected to the surface of the evaporator.

[0008] Preferably, the one-way valve is located at the water outlet of the circulating water pipe, the temperature sensor is located at the water inlet of the circulating water pipe, the circulating water pump is located at the water outlet of the circulating water pipe, and the evaporator is located at the water inlet of the circulating water pipe.

[0009] Preferably, the input port and the output port of the evaporator are fixedly connected to the output port and the input port of the compressor respectively through the connecting water pipe, and the surface of the condenser is fixedly connected to the surface of the third heat conducting plate.

[0010] Preferably, the surface of the connecting water pipe is fixedly connected to the surface of the expansion valve and the surface of the third heat conducting plate respectively, the expansion valve is located on the input side of the compressor, and the third heat conducting plate is located on the output side of the compressor.

[0011] The beneficial effects of the present invention are:

[0012] By setting up a first heat conduction plate, the heat generated by the battery panel is absorbed into the evaporator. The refrigerant inside the evaporator passes through the evaporator and the compressor and then condenses through the condenser, and the absorbed heat is released into the cooling medium air. This solves the technical problem that the outdoor refrigerant heat exchanger of the air conditioner at the front end of the existing vehicle can no longer meet the thermal energy requirements of the passenger compartment. At the same time, the battery motor and other components generate a large amount of waste heat during operation, but the waste heat cannot be recovered and utilized. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of an electric vehicle thermal management integrated device proposed by the present utility model;

[0014] Figure 2 This is a three-dimensional diagram of the circulating water pipe structure of an electric vehicle thermal management integrated device proposed by the utility model;

[0015] Figure 3 This is a three-dimensional diagram of the structure of the second heat conducting plate of the electric vehicle thermal management integrated device proposed by the utility model.

[0016] In the figure: 1. Battery panel; 2. First heat conduction plate; 3. Cooling water pipe; 4. Circulating water pump; 5. Evaporator; 6. Compressor; 7. Condenser; 8. Second heat conduction plate; 9. Circulating water pipe; 10. One-way valve; 11. Temperature sensor; 12. Connecting water pipe; 13. Third heat conduction plate; 14. Expansion valve. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Reference Figure 1-Figure 3 A thermal management integrated device for an electric vehicle includes a battery panel 1. A first heat conducting plate 2 is provided on the surface of the battery panel 1. A cooling water pipe 3 is provided on the surface of the first heat conducting plate 2. A circulating water pump 4, an evaporator 5, a compressor 6 and a condenser 7 are provided on one side of the battery panel 1. A second heat conducting plate 8 is provided on the surface of the evaporator 5. A circulating water pipe 9 is provided on the surface of the second heat conducting plate 8. A one-way valve 10 and a temperature sensor 11 are provided at both ends of the circulating water pipe 9. A connecting water pipe 12 is provided on the surface of the evaporator 5. A third heat conducting plate 13 is provided on the surface of the condenser 7. An expansion valve 14 is provided on the surface of the connecting water pipe 12.

[0019] The surface of the first heat conducting plate 2 is fixedly connected to the surface of the solar panel 1 . The two first heat conducting plates 2 are symmetrically distributed around the axis of the solar panel 1 . The surfaces of the two first heat conducting plates 2 are fixedly connected to the surface of the cooling water pipe 3 .

[0020] Furthermore, the surface of the solar panel 1 exchanges heat with the heat of the cooling water pipe 3 through the first heat conducting plate 2 .

[0021] The water inlet and outlet ends of the circulating water pipe 9 are fixedly connected to the water outlet and inlet ends of the cooling water pipe 3 respectively, the surface of the circulating water pipe 9 is fixedly connected to the surface of the circulating water pump 4, the surface of the circulating water pipe 9 is fixedly connected to the surface of the second heat conduction plate 8, and the surface of the second heat conduction plate 8 is fixedly connected to the surface of the evaporator 5.

[0022] Furthermore, the circulating water pump 4 pumps the cold water inside the circulating water pipe 9 into the water inlet end of the cooling water pipe 3 , and the hot water after heat exchange is discharged from the water outlet end of the cooling water pipe 3 and outputs the heat to the evaporator 5 through the second heat conduction plate 8 .

[0023] The one-way valve 10 is located at the water outlet of the circulating water pipe 9 , the temperature sensor 11 is located at the water inlet of the circulating water pipe 9 , the circulating water pump 4 is located at the water outlet of the circulating water pipe 9 , and the evaporator 5 is located at the water inlet of the circulating water pipe 9 .

[0024] Furthermore, the one-way valve 10 prevents the hot water after heat exchange in the cooling water pipe 3 from flowing back, and adjusts the speed of the circulating water pump 4 according to the temperature of the cooling water after heat exchange detected by the temperature sensor 11.

[0025] The input port and output port of the evaporator 5 are fixedly connected to the output port and input port of the compressor 6 through the connecting water pipe 12 , respectively. The surface of the condenser 7 is fixedly connected to the surface of the third heat conducting plate 13 .

[0026] Furthermore, after evaporation, the refrigerant inside the evaporator 5 enters the interior of the compressor 6 through the connecting water pipe 12 for compression, and the compressed refrigerant returns to the interior of the evaporator 5 through the connecting water pipe 12 for recycling.

[0027] The surface of the connecting water pipe 12 is fixedly connected to the surface of the expansion valve 14 and the surface of the third heat conducting plate 13 respectively. The expansion valve 14 is located on the input side of the compressor 6, and the third heat conducting plate 13 is located on the output side of the compressor 6.

[0028] Furthermore, the evaporated refrigerant is controlled to flow into the compressor 6 through the expansion valve 14 , and the compressed refrigerant exchanges heat with the condenser 7 through the third heat conduction plate 13 in the connecting water pipe 12 , and releases the heat through the release medium air of the condenser 7 .

[0029] By setting up a first heat conduction plate 2, the heat generated by the operation of the battery panel 1 is absorbed into the evaporator 5. The refrigerant inside the evaporator 5 passes through the evaporator 5 and the compressor 6 and then condenses through the condenser 7, and the absorbed heat is released into the cooling medium air, which solves the technical problem that the outdoor refrigerant heat exchanger of the air conditioner at the front end of the existing vehicle can no longer meet the thermal energy requirements of the passenger compartment. At the same time, the battery motor and other components generate a large amount of waste heat during operation, but the waste heat cannot be recovered and utilized.

[0030] Working principle:

[0031] Before use, the surface of the battery panel 1 is fixedly connected to the surface of the cooling water pipe 3 through multiple first heat conduction plates 2. A large amount of waste heat generated by the battery panel 1 during operation is exchanged with the cooling water inside the cooling water pipe 3 through the first heat conduction plate 2. The outlet end of the cooling water pipe 3 is fixedly connected to the water inlet end of the circulating water pipe 9. The water inlet end of the cooling water pipe 3 is fixedly connected to the water outlet end of the circulating water pipe 9. A circulating water pump 4 is provided on one side of the water outlet end of the circulating water pipe 9. The cooling water is circulated through the circulating water pump 4. A one-way valve 10 is provided on one side of the water outlet end of the circulating water pipe 9 to control the flow direction of the cooling water inside the cooling water pipe 3 after heat exchange. A temperature sensor 11 is provided on one side of the water inlet end of the circulating water pipe 9 to monitor the temperature of the cooling water after heat exchange. The temperature of the cooling water after heat exchange is adjusted by controlling the flow rate of the cooling water. The surface of the circulating water pipe 9 is connected to the second heat conduction plate 8 is fixedly connected to the surface of the evaporator 5. The cooling water after heat exchange is cooled by the second heat conducting plate 8 and the evaporator 5. The cooled cooling water is pumped into the water inlet end of the cooling water pipe 3 again through the circulating water pump 4 to complete the recycling of the cooling water. The evaporator 5 exchanges heat with the cooling water inside the circulating water pipe 9 through the second heat conducting plate 8, and evaporates the refrigerant inside the evaporator 5 into high-temperature gas. The high-temperature gas enters the interior of the compressor 6 from the input port of the compressor 6 through the connecting water pipe 12. The compressor 6 compresses the high-temperature gas into high-pressure gas, and the high-pressure gas is discharged from the output port of the compressor 6 through the connecting water pipe 12. The surface of the connecting water pipe 12 is fixedly connected to the surface of the condenser 7 through the third heat conducting plate 13. The condenser 7 condenses the high-pressure gas inside the connecting water pipe 12 into refrigerant liquid and releases the absorbed heat into the cooling medium air.

[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An electric vehicle thermal management integrated device, comprising a battery panel (1), characterized in that: A first heat conducting plate (2) is provided on the surface of the battery panel (1), a cooling water pipe (3) is provided on the surface of the first heat conducting plate (2), a circulating water pump (4), an evaporator (5), a compressor (6) and a condenser (7) are provided on one side of the battery panel (1), a second heat conducting plate (8) is provided on the surface of the evaporator (5), a circulating water pipe (9) is provided on the surface of the second heat conducting plate (8), a one-way valve (10) and a temperature sensor (11) are provided at both ends of the circulating water pipe (9), a connecting water pipe (12) is provided on the surface of the evaporator (5), a third heat conducting plate (13) is provided on the surface of the condenser (7), and an expansion valve (14) is provided on the surface of the connecting water pipe (12).

2. The electric vehicle thermal management integrated device according to claim 1, characterized in that: The surface of the first heat conducting plate (2) is fixedly connected to the surface of the battery panel (1); the two first heat conducting plates (2) are symmetrically distributed with the axis of the battery panel (1) as the center; and the surfaces of the two first heat conducting plates (2) are fixedly connected to the surface of the cooling water pipe (3).

3. The electric vehicle thermal management integrated device according to claim 1, characterized in that: The water inlet and outlet ends of the circulating water pipe (9) are fixedly connected to the water outlet and inlet ends of the cooling water pipe (3), respectively; the surface of the circulating water pipe (9) is fixedly connected to the surface of the circulating water pump (4); the surface of the circulating water pipe (9) is fixedly connected to the surface of the second heat conducting plate (8); and the surface of the second heat conducting plate (8) is fixedly connected to the surface of the evaporator (5).

4. The electric vehicle thermal management integrated device according to claim 1, characterized in that: The one-way valve (10) is located at the water outlet end of the circulating water pipe (9), the temperature sensor (11) is located at the water inlet end of the circulating water pipe (9), the circulating water pump (4) is located at the water outlet end of the circulating water pipe (9), and the evaporator (5) is located at the water inlet end of the circulating water pipe (9).

5. The electric vehicle thermal management integrated device according to claim 1, characterized in that: The input port and output port of the evaporator (5) are fixedly connected to the output port and input port of the compressor (6) through the connecting water pipe (12), and the surface of the condenser (7) is fixedly connected to the surface of the third heat conducting plate (13).

6. The electric vehicle thermal management integrated device according to claim 1, characterized in that: The surface of the connecting water pipe (12) is fixedly connected to the surface of the expansion valve (14) and the surface of the third heat conducting plate (13), respectively; the expansion valve (14) is located on the input side of the compressor (6), and the third heat conducting plate (13) is located on the output side of the compressor (6).

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