Automobile thermal management system and automobile

Abstract

The present invention discloses an automotive thermal management system and an automotive vehicle, wherein the automotive thermal management system includes a battery branch, a motor branch, a heat exchange branch, a heating branch, and a reversing valve. The battery branch is provided with a battery, the motor branch is provided with a motor, the heat exchange branch is provided with a heat exchanger, and the heating branch is provided with a heater core. The reversing valve is connected to the battery branch, the motor branch, the heat exchange branch, and the heating branch, and is configured to switch between at least two of the battery branch, the motor branch, the heat exchange branch, and the heating branch for heat exchange. The automotive thermal management system of the present invention can solve the problem of the large number of control valves in existing automotive thermal management systems, which leads to complex circuitry.

Description

Technical Field

[0001] The present invention relates to the technical field of automobiles, and in particular to an automobile thermal management system and an automobile. Background Art

[0002] In the context of energy conservation and emission reduction, new energy vehicles are becoming an inevitable trend. The power batteries in these vehicles require a suitable temperature to function properly. Currently, thermal management of power batteries is widely used in the market. Currently, automotive thermal management systems typically utilize multiple three-way valves and multiple four-way valves to cool the motor and heat and cool the battery. However, the piping in the thermal management system is complex, as it is connected by multiple three-way and four-way valves. Summary of the Invention

[0003] The main purpose of the present invention is to provide an automobile thermal management system, which aims to solve the problem that the automobile thermal management system in the prior art has too many control valves, resulting in complex circuits of the automobile thermal management system.

[0004] To achieve the above-mentioned purpose, the present invention proposes an automobile thermal management system, which includes a battery branch, a motor branch, a heat exchange branch and a heating branch, wherein the battery branch is provided with a battery, the motor branch is provided with a motor, the heat exchange branch is provided with a heat exchanger, and the heating branch is provided with a heater core; and

[0005] A reversing valve is connected to the battery branch, the motor branch, the heat exchange branch and the heating branch. The reversing valve is used to switch so that at least two of the battery branch, the motor branch, the heat exchange branch and the heating branch are connected for heat exchange.

[0006] In one embodiment, the number of the heat exchange branches is set to be multiple, and the multiple heat exchange branches are all connected to the reversing valve.

[0007] In one embodiment, the heat exchange branch includes a first heat exchange branch, a second heat exchange branch, and a third heat exchange branch; the heat exchanger includes a first heat exchanger, a second heat exchanger, and a third heat exchanger; the first heat exchange branch is provided with a first heat exchanger; the second heat exchange branch is provided with a second heat exchanger; the third heat exchange branch is provided with a third heat exchanger; and the reversing valve has a first position;

[0008] When the reversing valve is in the first position, the battery branch is connected to the first heat exchange branch, and the motor branch is connected to the second heat exchange branch and the third heat exchange branch.

[0009] In one embodiment, the heat exchange branch includes a first heat exchange branch, a second heat exchange branch, and a third heat exchange branch; the heat exchanger includes a first heat exchanger, a second heat exchanger, and a third heat exchanger; the first heat exchange branch is provided with a first heat exchanger; the second heat exchange branch is provided with a second heat exchanger; the third heat exchange branch is provided with a third heat exchanger; and the reversing valve has a second position;

[0010] When the reversing valve is in the second position, the battery branch is connected to the motor branch and the second heat exchange branch, and the first heat exchange branch is connected to the third heat exchange branch.

[0011] In one embodiment, the heat exchange branch includes a first heat exchange branch, a second heat exchange branch, and a third heat exchange branch; the heat exchanger includes a first heat exchanger, a second heat exchanger, and a third heat exchanger; the first heat exchange branch is provided with a first heat exchanger; the second heat exchange branch is provided with a second heat exchanger; the third heat exchange branch is provided with a third heat exchanger; and the reversing valve has a third position;

[0012] When the reversing valve is in the third position, the battery branch is connected to the first heat exchange branch, the heating branch is connected to the second heat exchange branch, and the motor branch is connected to the third heat exchange branch.

[0013] In one embodiment, the heat exchange branch includes a first heat exchange branch, a second heat exchange branch, and a third heat exchange branch; the heat exchanger includes a first heat exchanger, a second heat exchanger, and a third heat exchanger; the first heat exchange branch is provided with a first heat exchanger; the second heat exchange branch is provided with a second heat exchanger; the third heat exchange branch is provided with a third heat exchanger; and the reversing valve has a fourth position;

[0014] When the reversing valve is in the fourth position, the battery branch is connected to the motor branch, the first heat exchange branch is connected to the third heat exchange branch, and the heating branch is connected to the second heat exchange branch.

[0015] In one embodiment, the heat exchange branch includes a first heat exchange branch, the first heat exchange branch is provided with a first heat exchanger and a first pump body, and the first pump body is used to transport the refrigerant to the first heat exchanger.

[0016] In one embodiment, the heat exchange branch further includes a second heat exchange branch, on which a second liquid storage pot, a second pump body and a second heat exchanger are provided, and the second pump body is used to transport the refrigerant in the second liquid storage pot to the second heat exchanger.

[0017] In one embodiment, a PTC heater is further provided on the second heat exchange branch, and the PTC heater is used to heat the refrigerant passing through the PTC heater.

[0018] In one embodiment, the heat exchange branch further includes a third heat exchange branch, and the third heat exchange branch is provided with a third heat exchanger for performing heat exchange when connected with other branches.

[0019] In one embodiment, the reversing valve has a plurality of connection ports, and the plurality of connection ports are connected to the battery branch, the motor branch, the heat exchange branch, and the heating branch.

[0020] In one embodiment, the reversing valve has a first connection port, a second connection port, a third connection port, a fourth connection port, a fifth connection port, a sixth connection port, a seventh connection port, an eighth connection port, a ninth connection port, a tenth connection port, an eleventh connection port and a twelfth connection port, wherein one end of the battery branch is connected to the first connection port, and the other end is connected to the second connection port, one end of the first heat exchange branch is connected to the third connection port, and the other end is connected to the fourth connection port, one end of the motor branch is connected to the fifth connection port, and the other end is connected to the sixth connection port, one end of the second heat exchange branch is connected to the seventh connection port, and the other end is connected to the eighth connection port, one end of the heating branch is connected to the ninth connection port, and the other end is connected to the tenth connection port, and one end of the third heat exchange branch is connected to the eleventh connection port, and the other end is connected to the twelfth connection port.

[0021] In one embodiment, a first liquid storage pot is provided on the battery branch circuit, and the first liquid storage pot is used to contain refrigerant.

[0022] In one embodiment, a third pump body is further provided on the motor branch, and the third pump body is communicated with the motor to transport the refrigerant in the motor branch.

[0023] The present invention also provides an automobile, comprising the aforementioned automobile thermal management system. The automobile thermal management system comprises a battery branch, a motor branch, a heat exchange branch, a heating branch, and a reversing valve. The battery branch is provided with a battery, the motor branch is provided with a motor, the heat exchange branch is provided with a heat exchanger, and the heating branch is provided with a heater core. The reversing valve is connected to each of the battery branch, the motor branch, the heat exchange branch, and the heating branch, and is configured to switch between at least two of the battery branch, the motor branch, the heat exchange branch, and the heating branch to enable heat exchange.

[0024] The automotive thermal management system of the present invention includes a battery branch, a motor branch, a heat exchange branch, a heating branch, and a reversing valve; the battery branch is provided with a battery, the motor branch is provided with a motor, the heat exchange branch is provided with a heat exchanger, and the heating branch is provided with a heater core; the reversing valve is connected to the battery branch, the motor branch, the heat exchange branch, and the heating branch, and the reversing valve is used to switch so that at least two of the battery branch, the motor branch, the heat exchange branch, and the heating branch are connected for heat exchange. Conventional automotive thermal management systems typically include multiple three-way valves and multiple four-way valves, resulting in complex piping connections. Compared to conventional automotive thermal management systems, the technical solution of the present invention utilizes a single reversing valve to achieve the functions of the automotive thermal management system, thereby reducing the risk of refrigerant leakage and facilitating the stable operation of the automotive thermal management system. Furthermore, the reversing valve effectively integrates components such as the heat exchanger, battery, motor, and heater core, reducing the space occupied by multiple valves and simplifying the piping connections of the automotive thermal management system. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0026] Figure 1 This is a schematic structural diagram of an embodiment of an automotive thermal management system of the present invention;

[0027] Figure 2 for Figure 1 A schematic structural diagram of an embodiment of the reversing valve in the first position;

[0028] Figure 3 for Figure 1 A schematic structural diagram of an embodiment of the reversing valve in the second position;

[0029] Figure 4 for Figure 1 A schematic structural diagram of an embodiment of the middle reversing valve being in the third position;

[0030] Figure 5 for Figure 1 Schematic diagram of the structure of an embodiment of the middle reversing valve in the fourth position.

[0031] Description of Figure Numbers:

[0032]

[0033]

[0034] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if there are descriptions involving "multiple" in the embodiments of the present invention, the meaning of "multiple" is to include at least two. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] The present invention provides an embodiment of an automotive thermal management system, primarily for new energy vehicles. Currently, automotive thermal management systems typically utilize multiple three-way valves and multiple four-way valves to achieve motor cooling and battery heating and cooling. This design complicates the piping connections within the thermal management system. The automotive thermal management system of the present invention utilizes a single control valve to achieve motor cooling and battery heating and cooling, simplifying the piping within the thermal management system.

[0039] See also Figure 1In one embodiment of the present invention, the automobile thermal management system 1 includes a battery branch 10, a motor branch 20, a heat exchange branch 30, a heating branch 40 and a reversing valve 50; the battery branch 10 is provided with a battery 11, the motor branch 20 is provided with a motor 21, the heat exchange branch 30 is provided with a heat exchanger, and the heating branch 40 is provided with a heater core 41; the reversing valve 50 is connected to the battery branch 10, the motor branch 20, the heat exchange branch 30 and the heating branch 40, and the reversing valve 50 is used to switch so that at least two of the battery branch 10, the motor branch 20, the heat exchange branch 30 and the heating branch 40 are connected for heat exchange.

[0040] Specifically, the battery branch 10, the motor branch 20, the heat exchange branch 30 and the heating branch 40 are all connected to the reversing valve 50. The reversing valve 50 has multiple connection ports. Multiple channels are provided in the reversing valve 50. The reversing valve 50 is controlled to switch so that the battery branch 10, the motor branch 20, the heat exchange branch 30 and the heating branch 40 are connected for heat exchange.

[0041] Furthermore, a battery 11 is provided on the battery branch 10, and the refrigerant circulates in the battery branch 10 to exchange heat for the battery 11. A heat exchanger is provided on the heat exchange branch 30. When the reversing valve 50 is reversed, the reversing branch is connected to the battery branch 10, the motor branch 20 or the heating branch 40 to perform heat exchange. A motor 21 is provided on the motor branch 20, and when the refrigerant circulates in the motor branch 20, the motor 21 can be cooled. A heater core 41 is provided on the heating branch 40, and air can be blown out through the heater core 41 to improve the comfort of heat exchange.

[0042] See also Figure 1 In one embodiment, the number of heat exchange branches 30 is set to multiple, and the multiple heat exchange branches 30 are all connected to the reversing valve 50. Specifically, the multiple heat exchange branches 30 are connected to the battery branch 10, the motor branch 20, and the heating branch 40 to achieve the heat exchange function of the entire vehicle thermal management system 1. The multiple heat exchange branches 30 have multiple connection modes with the battery branch 10, the motor branch 20, and the heating branch 40, which enriches the heat exchange modes of the vehicle thermal management system 1, provides more options for users, and further improves the economic efficiency of the vehicle thermal management system 1.

[0043] In one embodiment, the heat exchange branch 30 includes a first heat exchange branch 31, a second heat exchange branch 32 and a third heat exchange branch 33, and the heat exchanger includes a first heat exchanger 311, a second heat exchanger 323 and a third heat exchanger 331. The first heat exchange branch 31 is provided with a first heat exchanger 311, the second heat exchange branch 32 is provided with a second heat exchanger 323, and the third heat exchange branch 33 is provided with a third heat exchanger 331, wherein the third heat exchanger 331 can be configured as a radiator 331.

[0044] The reversing valve 50 has multiple connection ports, which are connected to the battery branch 10, the motor branch 20, the heat exchange branch 30, and the heating branch 40. The reversing valve 50 is connected to the battery branch 10, the motor branch 20, the heat exchange branch 30, and the heating branch 40 through the multiple connection ports, and is switched within the reversing valve 50 so that at least two of the battery branch 10, the motor branch 20, the heat exchange branch 30, and the heating branch 40 are connected to form a circulation loop for heat exchange.

[0045] Specifically, the reversing valve 50 has a first connection port 501 and a second connection port 502. One end of the battery branch 10 is connected to the first connection port 501, and the other end is connected to the second connection port 502. The reversing valve 50 also has a third connection port 503 and a fourth connection port 504. One end of the first heat exchange branch 31 is connected to the third connection port 503, and the other end is connected to the fourth connection port 504. The reversing valve 50 also has a fifth connection port 505 and a sixth connection port 506. One end of the motor branch 20 is connected to the fifth connection port 505, and the other end is connected to the sixth connection port 506. The reversing valve 50 also has a seventh connection port 507 and an eighth connection port 508. One end of the second heat exchange branch 32 is connected to the seventh connection port 507, and the other end is connected to the eighth connection port 508. The reversing valve 50 also has a ninth connection port 509 and a tenth connection port 510. One end of the heating branch 40 is connected to the ninth connection port 509, and the other end is connected to the tenth connection port 510. The reversing valve 50 also has an eleventh connection port 511 and a twelfth connection port 512. One end of the third heat exchange branch 33 is connected to the eleventh connection port 511, and the other end is connected to the twelfth connection port 512. The reversing valve 50 is provided with multiple channels. By switching the positions of the multiple channels, any two or three of the battery branch 10, motor branch 20, heating branch 40, first heat exchange branch 31, second heat exchange branch 32, and third heat exchange branch 33 can be connected together, thereby forming one or more complete circulation loops for heat exchange.

[0046] The reversing valve 50 of the present invention has four working positions, and the corresponding automobile thermal management system 1 has four modes, which are specifically as follows.

[0047] See also Figure 2 In one embodiment, the reversing valve 50 has a first position. When the reversing valve 50 is in the first position, the battery branch 10 is connected to the first heat exchange branch 31, and the motor branch 20 is connected to the second heat exchange branch 32 and the third heat exchange branch 33. Specifically, when the reversing valve 50 is in the first position, the first connection port 501 is connected to the third connection port 503, and the second connection port 502 is connected to the fourth connection port 504, so that the battery branch 10 is connected to the first heat exchange branch 31, forming a battery heat exchange loop 2. The first heat exchanger 311 exchanges heat with the battery 11. In this battery heat exchange loop 2, the battery 11 can be heated or cooled, so that the battery 11 can operate at an appropriate temperature. At the same time, the fifth connection port 505 is connected to the twelfth connection port 512, the sixth connection port 506 is connected to the seventh connection port 507, and the eighth connection port 508 is connected to the eleventh connection port 511 to form a motor cooling circuit 3, which mainly uses the second heat exchanger 323 to cool the motor 21 through the radiator 331 to prevent the motor 21 from short circuiting or being damaged due to excessive temperature.

[0048] See also Figure 3In one embodiment, the reversing valve 50 has a second position. When the reversing valve 50 is in the second position, the battery branch 10 communicates with the motor branch 20 and the second heat exchange branch 32, and the first heat exchange branch 31 communicates with the third heat exchange branch 33. Specifically, when the reversing valve 50 is in the second position, the first connection port 501 communicates with the fifth connection port 505, the sixth connection port 506 communicates with the seventh connection port 507, and the eighth connection port 508 communicates with the second connection port 502, thereby forming a battery-motor heat exchange loop 4. The second heat exchanger 323 heats the battery 11, and the heat from the motor 21 also heats the battery 11 as the refrigerant circulates in the battery-motor heat exchange loop 4. The second heat exchanger 323 and the motor 21 simultaneously heat the battery 11, reducing electrical loss in the vehicle. At the same time, the third connection port 503 is connected to the twelfth connection port 512, and the fourth connection port 504 is connected to the eleventh connection port 511 to form a heat exchange circuit 5. At this time, the first heat exchanger 311 absorbs heat through the radiator 331, and the first heat exchanger 311 and the second heat exchanger 323 are connected through the refrigerant system. The second heat exchanger 323 heats the passenger compartment in the car and heats the battery 11 at the same time. Of course, in other modes, the radiator 331 can also be used to dissipate heat.

[0049] See also Figure 4In one embodiment, the reversing valve 50 has a third position. When the reversing valve 50 is in the third position, the battery branch 10 is connected to the first heat exchange branch 31, the heating branch 40 is connected to the second heat exchange branch 32, and the motor branch 20 is connected to the third heat exchange branch 33. Specifically, when the reversing valve 50 is in the third position, the first connection port 501 is connected to the third connection port 503, and the second connection port 502 is connected to the fourth connection port 504, so that the battery branch 10 is connected to the first heat exchange branch 31, forming a battery heat exchange loop 2. The first heat exchanger 311 exchanges heat with the battery 11. In this battery heat exchange loop 2, the battery 11 can be heated or cooled, so that the battery 11 can operate at an appropriate temperature. At the same time, the fifth connection port 505 is connected to the twelfth connection port 512, and the sixth connection port 506 is connected to the eleventh connection port 511, to form a heat dissipation circuit 6 for the motor 21. In this circuit, the heat is mainly dissipated from the motor 21 through the radiator 331 to prevent the motor 21 from short-circuiting or being damaged due to excessive temperature. At the same time, the seventh connection port 507 is connected to the tenth connection port 510, and the eighth connection port 508 is connected to the ninth connection port 509, to form a heating circuit 7. In this circuit, heat is supplied to the passenger compartment of the vehicle through the second heat exchanger 323. The heating circuit 7 is provided with a heater core 41, which indirectly exchanges heat through the heater core iron, so that the temperature of the warm air blown to the passengers is more uniform and more comfortable.

[0050] It should be emphasized that since the first heat exchanger 311 and the second heat exchanger 323 are also connected through the refrigerant system, in the heating circuit 7, the second heat exchanger 323 is used as a condenser, so the first heat exchanger 311 is used as an evaporator. The first heat exchanger 311 can absorb the waste heat of the battery 11 in the battery heat exchange circuit 2 and transfer it to the second heat exchanger 323, further reducing the loss of vehicle electricity.

[0051] See also Figure 5In one embodiment, the reversing valve 50 has a fourth position. When the reversing valve 50 is in the fourth position, the battery branch 10 is connected to the motor branch 20, the first heat exchange branch 31 is connected to the third heat exchange branch 33, and the heating branch 40 is connected to the second heat exchange branch 32. Specifically, when the reversing valve 50 is in the fourth position, the first connection port 501 is connected to the fifth connection port 505, and the second connection port 502 is connected to the sixth connection port 506, thereby forming the battery heating circuit 8. In this circuit, heat from the motor 21 can be transferred to the battery 11 through the circulation of the battery heating circuit 8 to heat the battery 11. This eliminates the need for a separate heat exchanger to heat the battery 11, reduces vehicle power loss, and allows the battery 11 to quickly heat up to a suitable temperature for starting in a relatively low-temperature environment. At the same time, the third connection port 503 is connected to the twelfth connection port 512, and the fourth connection port 504 is connected to the eleventh connection port 511, forming a heat exchange circuit 5. The first heat exchanger 311 absorbs heat through the radiator 331. The first heat exchanger 311 and the second heat exchanger 323 are connected via the refrigerant system. The second heat exchanger 323 heats the passenger compartment of the vehicle and simultaneously heats the battery 11. Simultaneously, the seventh connection port 507 is connected to the tenth connection port 510, and the eighth connection port 508 is connected to the ninth connection port 509, forming a heating circuit 7. In this circuit, heat is supplied to the passenger compartment of the vehicle via the second heat exchanger 323. This heating circuit 7 is equipped with a heater core 41, which indirectly exchanges heat through the heater core iron, ensuring a more uniform and comfortable warm air flow to the passengers.

[0052] See also Figures 1 to 5 In one embodiment, the heat exchange branch 30 includes a first heat exchange branch 31, which is provided with a first heat exchanger 311 and a first pump 312. The first pump 312 is used to transport refrigerant to the first heat exchanger 311. Specifically, when the first heat exchange branch 31 is connected to other branches through the reversing valve 50, the first heat exchanger 311 is used to perform heat exchange in the connected circuit, and the first pump 312 is used to apply pressure to the refrigerant in the connected circuit to enable the refrigerant to flow in the circuit and transport the refrigerant to the first heat exchanger 311 for heat exchange.

[0053] See also Figures 1 to 5In one embodiment, the heat exchange branch 30 further includes a second heat exchange branch 32, and the second heat exchange branch 32 is provided with a second liquid storage pot 321, and the second liquid storage pot 321 is used to contain refrigerant. Specifically, the second liquid storage pot 321 is filled with refrigerant, and the refrigerant is replenished to the second heat exchange branch 32 through the second liquid storage pot 321 and flows to other branches. At the same time, when the pressure of the loop formed by the connection of the other branches with the second branch increases during the heat exchange process, the air can be exhausted through the second liquid storage pot 321, so that the air pressure in the loop formed by the connection of the other branches with the second branch is restored. At the same time, the liquid level of the refrigerant can be observed through the second liquid storage pot 321, and the refrigerant can be replenished in time.

[0054] Furthermore, the second heat exchange branch 32 is further provided with a second pump 322 and a second heat exchanger 323. The second pump 322 is located between the second liquid reservoir 321 and the second heat exchanger 323 and is used to transport the refrigerant in the second liquid reservoir 321 to the second heat exchanger 323. Specifically, to enable the refrigerant in the second heat exchange branch 32, as well as the refrigerant in the circuit after the other branches are connected to the second heat exchange branch 32, to flow, the second heat exchange branch 32 is further provided with the second pump 322. The second pump 322 is used to apply pressure to the refrigerant in the circuit after the other branches are connected to the second heat exchange branch 32, thereby promoting the flow of the refrigerant. The second heat exchanger 323 is primarily used for heat exchange. The second pump 322 is located between the second liquid reservoir 321 and the second heat exchanger 323, enabling more efficient and rapid transport of the refrigerant to the second heat exchanger 323 for heat exchange, thereby improving heat exchange efficiency. Of course, in other embodiments, the second pump body 322 may also be arranged before the second liquid storage pot 321, or after the second heat exchanger 323, and there is no specific limitation on this.

[0055] See also Figures 1 to 5 It is worth mentioning that a PTC heater 324 is also provided on the second heat exchange branch 32. The PTC heater 324 is used to heat the refrigerant passing through the PTC heater 324. The PTC heater 324 is located between the second pump body 322 and the second heat exchanger 323. Of course, in other embodiments, the PTC heater 324 can also be arranged before the second pump body 322 or after the second heat exchanger 323. There is no specific limitation on this.

[0056] Specifically, when the reversing valve 50 is in the first position, the second heat exchange branch 32, the third heat exchange branch 33 and the motor branch 20 are connected to form a motor cooling circuit 3. This circuit mainly uses the second heat exchanger 323 to cool the motor 21 through the radiator 331 to prevent the motor 21 from short-circuiting or being damaged due to excessive temperature. Therefore, in this state, the PTC heater 324 is turned off and does not work. When the reversing valve 50 is in the second position, the battery branch 10, the motor branch 20 and the second heat exchange branch 32 are connected to form a battery-motor heat exchange loop 4. The second heat exchanger 323 heats the battery 11, and the heat of the motor 21 also heats the battery 11 as the refrigerant circulates in the battery-motor heat exchange loop 4. The second heat exchanger 323 and the motor 21 heat the battery 11 at the same time, reducing the power loss of the vehicle. If the second heat exchanger 323 does not provide enough heat to heat the motor 21, or the efficiency is not high enough, the PTC heater 324 can be turned on to heat it again to compensate for the heat exchange of the loop. When the reversing valve 50 is in the third position, the second heat exchange branch 32 and the heating branch 40 are connected to form a heating circuit 7. In this circuit, heat is supplied to the passenger compartment of the vehicle via the second heat exchanger 323. Furthermore, the heating circuit 7 is provided with a heater core 41, which indirectly exchanges heat through the heater core iron, ensuring a more uniform temperature of warm air blown to the passengers and providing greater comfort. When the heat supply of this circuit is insufficient, the PTC heater 324 can be turned on for additional heating to compensate for the heat exchange of this circuit. When the reversing valve 50 is in the fourth position, the second heat exchange branch 32 and the heating branch 40 are connected to form a heating circuit 7, similar to when the reversing valve 50 is in the third position. For details, please refer to the above description and will not be elaborated on here.

[0057] See also Figures 1 to 5 In one embodiment, the heat exchange branch 30 further includes a third heat exchange branch 33, which is provided with a third heat exchanger 331 for performing heat exchange when connected to other branches. Specifically, in this embodiment, the third heat exchanger 331 is configured as a radiator 331. When the third heat exchange branch 33 is connected to other branches to form a loop, the radiator 331 can dissipate heat from the connected loop, or it can absorb heat from the external environment.

[0058] See also Figures 1 to 5In one embodiment, the battery branch 10 is provided with a first liquid reservoir 12 for storing refrigerant. Specifically, the first liquid reservoir 12 contains refrigerant, and the refrigerant level in the circuit can be monitored through the first liquid reservoir 12 for timely refrigerant replenishment. Furthermore, when other branches are connected to the battery branch 10 to form a loop, if air pressure increases during heat exchange, the first liquid reservoir 12 can be used to vent air, thereby restoring the air pressure within the loop formed by the connection of the other branches with the battery branch 10.

[0059] See also Figures 1 to 5 In one embodiment, a third pump body 22 is further provided on the motor branch 20. The third pump body 22 is in communication with the motor 21 and is used to transport the refrigerant in the motor branch 20. Specifically, since the motor branch 20 is connected to other branches to form a loop, the refrigerant needs to circulate in the loop. The third pump body 22 can apply pressure to the refrigerant in the loop to enable the refrigerant to circulate in the loop.

[0060] The automobile thermal management system 1 of the present invention includes a battery branch 10, a motor branch 20, a heat exchange branch 30, a heating branch 40 and a reversing valve 50; the battery branch 10 is provided with a battery 11, the motor branch 20 is provided with a motor 21, the heat exchange branch 30 is provided with a heat exchanger, and the heating branch 40 is provided with a heater core 41; the reversing valve 50 is connected to the battery branch 10, the motor branch 20, the heat exchange branch 30 and the heating branch 40, and the reversing valve 50 is used to switch so that at least two branches of the battery branch 10, the motor branch 20, the heat exchange branch 30 and the heating branch 40 are connected for heat exchange. A traditional automobile thermal management system 1 usually includes multiple three-way valves and multiple four-way valves, and the pipeline connections are complicated. Compared with the traditional automobile thermal management system 1, the technical solution of the present invention uses a reversing valve 50 to realize the functions of the automobile thermal management system 1, thereby reducing the risk of refrigerant leakage, which is beneficial to the stable operation of the automobile thermal management system 1. In addition, through a reversing valve 50, the heat exchanger, battery 11, motor 21, heater core 41 and other components are effectively integrated together, reducing the space occupied by multiple valves and simplifying the pipeline connection of the automobile thermal management system 1.

[0061] The present invention also provides an automobile comprising a thermal management system. The specific structure of the thermal management system is described with reference to the aforementioned embodiments. Since this automobile utilizes all the technical solutions of all of the aforementioned embodiments, it possesses at least all the beneficial effects of the technical solutions of the aforementioned embodiments, and therefore will not be detailed here. The automobile is a new energy vehicle wash.

[0062] The above descriptions are merely optional embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present description and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An automotive thermal management system, characterized in that: The automobile thermal management system includes a battery branch, a motor branch, a heat exchange branch and a heating branch, wherein the battery branch is provided with a battery, the motor branch is provided with a motor, the heat exchange branch is provided with a heat exchanger, and the heating branch is provided with a heater core; and a reversing valve connected to the battery branch, the motor branch, the heat exchange branch, and the heating branch, the reversing valve being configured to switch so that at least two of the battery branch, the motor branch, the heat exchange branch, and the heating branch are connected for heat exchange; the reversing valve having a plurality of connection ports, the plurality of connection ports being connected to the battery branch, the motor branch, the heat exchange branch, and the heating branch; The number of the heat exchange branches is set to be multiple, and the multiple heat exchange branches are all connected to the reversing valve; The heat exchange branch includes a first heat exchange branch, a second heat exchange branch, and a third heat exchange branch. The heat exchanger includes a first heat exchanger, a second heat exchanger, and a third heat exchanger. The first heat exchange branch is provided with a first heat exchanger, the second heat exchange branch is provided with a second heat exchanger, and the third heat exchange branch is provided with a third heat exchanger. The reversing valve has a second position. When the reversing valve is in the second position, the battery branch is connected to the motor branch and the second heat exchange branch, the first heat exchange branch is connected to the third heat exchange branch, and the first heat exchanger and the second heat exchanger are connected through the refrigerant system.

2. The automotive thermal management system according to claim 1, wherein: The heat exchange branch includes a first heat exchange branch, a second heat exchange branch, and a third heat exchange branch. The heat exchanger includes a first heat exchanger, a second heat exchanger, and a third heat exchanger. The first heat exchange branch is provided with a first heat exchanger, the second heat exchange branch is provided with a second heat exchanger, and the third heat exchange branch is provided with a third heat exchanger. The reversing valve has a first position. When the reversing valve is in the first position, the battery branch is connected to the first heat exchange branch, and the motor branch is connected to the second heat exchange branch and the third heat exchange branch.

3. The automotive thermal management system according to claim 1, wherein: The heat exchange branch includes a first heat exchange branch, a second heat exchange branch, and a third heat exchange branch. The heat exchanger includes a first heat exchanger, a second heat exchanger, and a third heat exchanger. The first heat exchange branch is provided with a first heat exchanger, the second heat exchange branch is provided with a second heat exchanger, and the third heat exchange branch is provided with a third heat exchanger. The reversing valve has a third position. When the reversing valve is in the third position, the battery branch is connected to the first heat exchange branch, the heating branch is connected to the second heat exchange branch, and the motor branch is connected to the third heat exchange branch.

4. The automotive thermal management system according to claim 1, wherein: The heat exchange branch includes a first heat exchange branch, a second heat exchange branch, and a third heat exchange branch. The heat exchanger includes a first heat exchanger, a second heat exchanger, and a third heat exchanger. The first heat exchange branch is provided with a first heat exchanger, the second heat exchange branch is provided with a second heat exchanger, and the third heat exchange branch is provided with a third heat exchanger. The reversing valve has a fourth position. When the reversing valve is in the fourth position, the battery branch is connected to the motor branch, the first heat exchange branch is connected to the third heat exchange branch, and the heating branch is connected to the second heat exchange branch.

5. The automotive thermal management system according to claim 1, wherein: The heat exchange branch includes a first heat exchange branch, wherein the first heat exchange branch is provided with a first heat exchanger and a first pump body, and the first pump body is used to transport the refrigerant to the first heat exchanger.

6. The automotive thermal management system according to claim 5, wherein: The heat exchange branch also includes a second heat exchange branch, on which a second liquid storage pot, a second pump body and a second heat exchanger are provided. The second pump body is used to transport the refrigerant in the second liquid storage pot to the second heat exchanger.

7. The automotive thermal management system according to claim 6, wherein: The second heat exchange branch is further provided with a PTC heater, and the PTC heater is used to heat the refrigerant passing through the PTC heater.

8. The automotive thermal management system according to claim 7, wherein: The heat exchange branch further includes a third heat exchange branch, and the third heat exchange branch is provided with a third heat exchanger for performing heat exchange when connected with other branches.

9. The automotive thermal management system according to claim 1, wherein: The reversing valve has a first connection port, a second connection port, a third connection port, a fourth connection port, a fifth connection port, a sixth connection port, a seventh connection port, an eighth connection port, a ninth connection port, a tenth connection port, an eleventh connection port and a twelfth connection port, wherein one end of the battery branch is connected to the first connection port, and the other end is connected to the second connection port, one end of the first heat exchange branch is connected to the third connection port, and the other end is connected to the fourth connection port, one end of the motor branch is connected to the fifth connection port, and the other end is connected to the sixth connection port, one end of the second heat exchange branch is connected to the seventh connection port, and the other end is connected to the eighth connection port, one end of the heating branch is connected to the ninth connection port, and the other end is connected to the tenth connection port, one end of the third heat exchange branch is connected to the eleventh connection port, and the other end is connected to the twelfth connection port.

10. The automotive thermal management system according to any one of claims 1 to 7, characterized in that: The battery branch is provided with a first liquid storage pot, and the first liquid storage pot is used for containing refrigerant.

11. The automotive thermal management system according to any one of claims 1 to 7, characterized in that: The motor branch is further provided with a third pump body, which is in communication with the motor and is used for conveying the refrigerant in the motor branch.

12. An automobile, characterized in that: The automobile comprises the automobile thermal management system according to any one of claims 1 to 11.

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