Vehicle thermal management system and vehicle

Abstract

The utility model relates to a vehicle heat management system and a vehicle. The vehicle heat management system comprises a water storage tank, a first heat source, a second heat source and a first reversing valve. The water storage tank is selectively communicated with the first heat source and / or the second heat source through a first reversing valve, the first heat source is selectively communicated with a first branch or a second branch, and the second heat source is selectively communicated with the second branch or a third branch. And the first branch and the third branch are selectively communicated with the first reversing valve. According to the technical scheme, the vehicle heat management system can meet the heat dissipation requirements of the vehicle under different working conditions.

Description

Technical Field

[0001] The present disclosure relates to the field of thermal management technology, and in particular, to a thermal management system and a vehicle. Background Art

[0002] As the weight of hybrid vehicles continues to increase and the power of motors and electronic controls continues to increase, the heat dissipation requirements of the entire vehicle are growing.

[0003] In the related art, the vehicle's cooling system is designed as an independent cooling circuit, and each cooling cycle circuit adopts an independent low-temperature radiator to dissipate heat. For components such as intercoolers and motors that will generate a large amount of heat in a short period of time when the vehicle encounters operating conditions such as climbing a slope and sudden acceleration, the temperature of the components cannot be quickly reduced by only using independent cooling circuits, and it is difficult to meet the high heat dissipation requirements of the vehicle under short-term high-power operating conditions. Utility Model Content

[0004] The purpose of the present disclosure is to provide a vehicle thermal management system and a vehicle, wherein the vehicle thermal management system can meet the heat dissipation requirements of the vehicle under different working conditions.

[0005] In order to achieve the above-mentioned objectives, the present disclosure provides a vehicle thermal management system, which includes a water tank, a first heat source, a second heat source and a first reversing valve; the water tank is selectively connected to the first heat source and / or the second heat source through the first reversing valve, the first heat source is selectively connected to the first branch or the second branch, the second heat source is selectively connected to the second branch or the third branch, and the first branch and the third branch are selectively connected to the first reversing valve.

[0006] Optionally, the vehicle thermal management system includes a first pump and a second pump, the first pump and the second pump are arranged downstream of the water tank, the water tank is selectively connected to the first pump and the second pump, one end of the first pump is selectively connected or cut off with the first reversing valve, and the other end is selectively connected or cut off with the first branch; one end of the second pump is selectively connected or cut off with the first reversing valve, and the other end is selectively connected or cut off with the third branch.

[0007] Optionally, the first reversing valve is selectively connected to or blocked from the second heat source via a fourth branch and a fifth branch arranged in parallel, wherein the fifth branch is provided with a first heat exchanger.

[0008] Optionally, the vehicle thermal management system further includes a heat pump air-conditioning system, and the first heat exchanger is located in the heat pump air-conditioning system.

[0009] Optionally, the vehicle thermal management system includes a sixth branch, one end of the sixth branch is selectively connected or cutoff with the first reversing valve, and the other end is selectively connected or cutoff with the first pump; and / or, the vehicle thermal management system also includes a seventh branch, one end of the seventh branch is selectively connected or cutoff with the first reversing valve, and the other end is selectively connected or cutoff with the second pump.

[0010] Optionally, the vehicle thermal management system further includes an eighth branch, on which a third heat source is provided, and one end of the eighth branch is selectively connected to or cut off from the first reversing valve, and the other end of the eighth branch is selectively connected to or cut off from the first pump.

[0011] Optionally, the third heat source is a second heat exchanger for dissipating heat from the fan.

[0012] Optionally, the vehicle thermal management system further includes a first radiator, one end of which is connected to the first branch and the eighth branch, and the other end of which is selectively connected to or blocked from the first pump.

[0013] Optionally, the vehicle thermal management system further includes a second radiator, one end of the second radiator is connected to the third branch, and the other end of the second radiator is selectively connected to or blocked from the second pump.

[0014] Optionally, the water tank includes a first outlet and a second outlet, the first outlet is selectively connected to or blocked from the first pump, and the second outlet is selectively connected to or blocked from the second pump.

[0015] Optionally, the number of the first heat sources is set to one or more, wherein, when the number of the first heat sources is set to multiple, the multiple first heat sources are set in parallel; and / or, the number of the second heat sources is set to one or more, wherein, when the number of the second heat sources is set to multiple, the multiple second heat sources are set in parallel.

[0016] According to a second aspect of the present disclosure, a vehicle is provided, the vehicle being provided with the vehicle thermal management system as described above.

[0017] Through the above technical scheme, in the vehicle thermal management system provided by the present invention, the water tank can be selectively connected to the first heat source and / or the second heat source through the first reversing valve. Therefore, the cooling medium in the water tank can be supplied to the first heat source and the second heat source at the same time, and can also be supplied to one of the first heat source and the second heat source. In this way, when the temperatures of the first heat source and the second heat source are both lower than their respective preset temperatures, the cooling medium in the water tank can dissipate heat to the first heat source and the second heat source at the same time; when one of the first heat source and the second heat source generates a large amount of heat (i.e., exceeds the preset temperature) in a short period of time, it is connected to the first reversing valve through the first branch and the third branch respectively. At this time, the cooling medium in the water tank can be connected to the first heat source and the second heat source through the first branch and the third branch respectively. In this way, the first heat source and the second heat source are connected to the water tank through two independent branches, thereby being able to quickly reduce the temperature of the one of the first heat source and the second heat source that generates a large amount of heat. In addition, when the first heat source and the second heat source are connected to the second branch respectively, at this time, the first heat source and the second heat source are connected to each other through the second branch, so that the heat generated by the first heat source and the second heat source can be recovered as waste heat, which can be used to provide heat to, for example, a heat pump air conditioning system to achieve heating of the vehicle passenger compartment. Through the above technical solution, the vehicle thermal management system provided by the present disclosure can flexibly respond to short-term high-heat working conditions, meet the heat dissipation needs of the vehicle under short-term high-heat working conditions, and can also realize waste heat recovery of the heat generated by the first heat source and the second heat source, thereby meeting the heat dissipation needs of the vehicle under different working conditions.

[0018] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0020] Figure 1 is a schematic diagram of the operation of the thermal management system provided by an embodiment of the present disclosure;

[0021] Figure 2 is a structural block diagram of a first working mode of a thermal management system provided by an embodiment of the present disclosure;

[0022] Figure 3 is a structural block diagram of a first working mode of a thermal management system provided by an embodiment of the present disclosure, wherein a working schematic diagram of a first heat exchanger is shown;

[0023] Figure 4 is a structural block diagram of a second working mode of a thermal management system provided by an embodiment of the present disclosure;

[0024] Figure 5 is a structural block diagram of a second working mode of a thermal management system provided by an embodiment of the present disclosure, wherein a working schematic diagram of a first heat exchanger is shown;

[0025] Figure 6 is a structural block diagram of a third working mode of a thermal management system provided by an embodiment of the present disclosure;

[0026] Figure 7 It is a structural block diagram of the third working mode of the thermal management system provided by an embodiment of the present disclosure, wherein a working schematic diagram of another loop is shown.

[0027] Description of Reference Numerals

[0028] 1-water tank, 11-first outlet, 12-second outlet, 21-first heat source, 22-second heat source, 23-third heat source, 3-first reversing valve, 41-first branch, 42-second branch, 43-third branch, 44-fourth branch, 45-fifth branch, 46-sixth branch, 47-seventh branch, 48-eighth branch, 51-first pump, 52-second pump, 61-first heat exchanger, 62-second heat exchanger, 71-first radiator, 72-second radiator, 8-heat pump air conditioning system, 81-compressor, 82-condenser, 83-expansion valve. DETAILED DESCRIPTION

[0029] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0030] In the present disclosure, unless otherwise stated, the use of words such as "first" and "second" is intended to distinguish different components and does not have order or importance. In addition, in the following description, when referring to the drawings, the same symbols in different drawings represent the same elements. It should be understood by those skilled in the art that the above definitions are only used to explain and illustrate the present disclosure and should not be understood as limiting the present disclosure.

[0031] According to the specific implementation of the present disclosure, Figures 1 to 7 As shown, a vehicle thermal management system is provided, which includes a water tank 1, a first heat source 21, a second heat source 22 and a first reversing valve 3; the water tank 1 is selectively connected to the first heat source 21 and / or the second heat source 22 through the first reversing valve 3, the first heat source 21 is selectively connected to the first branch 41 or the second branch 42, the second heat source 22 is selectively connected to the second branch 42 or the third branch 43, and the first branch 41 and the third branch 43 are selectively connected to the first reversing valve 3.

[0032] Through the above technical solution, in the vehicle thermal management system provided by the present disclosure, the water tank 1 can be selectively connected to the first heat source 21 and / or the second heat source 22 through the first reversing valve 3. Therefore, the cooling medium in the water tank 1 can be supplied to the first heat source 21 and the second heat source 22 at the same time, and can also be supplied to one of the first heat source 21 and the second heat source 22. In this way, when the temperatures of the first heat source 21 and the second heat source 22 are both lower than their respective preset temperatures, the cooling medium in the water tank 1 can simultaneously dissipate heat for the first heat source 21 and the second heat source 22. When one of the first heat source 21 and the second heat source 22 generates a large amount of heat (i.e., exceeds the preset temperature) in a short period of time, the first branch 41 and the third branch 43 are respectively connected to the first reversing valve 3. At this time, the cooling medium in the water storage tank 1 can be respectively connected to the first heat source 21 and the second heat source 22 through the first branch 41 and the third branch 43. In this way, the first heat source 21 and the second heat source 22 are connected to the water storage tank 1 through two independent branches, thereby being able to quickly reduce the temperature of the one of the first heat source 21 and the second heat source 22 that generates a large amount of heat. In addition, when the first heat source 21 and the second heat source 22 are respectively connected to the second branch 42, at this time, the first heat source 21 and the second heat source 22 are mutually connected through the second branch 42, so that the heat generated by the first heat source 21 and the second heat source 22 can be recovered as waste heat, which can be used to provide heat to, for example, the heat pump air conditioning system 8 to achieve heating of the vehicle passenger compartment. Through the above technical scheme, the vehicle thermal management system provided by the present invention can flexibly respond to short-term high-heat conditions, meet the heat dissipation needs of the vehicle under short-term high-heat conditions, and can also realize waste heat recovery of the heat generated by the first heat source 21 and the second heat source 22, thereby meeting the heat dissipation needs of the vehicle under different working conditions.

[0033] Among them, the first heat source 21 can be a heat source with basically stable heat generation and relatively stable temperature change range during the operation of the vehicle, such as electronic control, OBC, DCDC and other components. Under normal vehicle driving conditions and special conditions (such as climbing, rapid acceleration and other conditions), the temperature of the first heat source 21 is always lower than its preset temperature. The second heat source 22 can be a component that will generate a large amount of heat in a short time when the vehicle encounters climbing, rapid acceleration and other conditions, such as an intercooler, a motor, etc. When the vehicle is in a normal driving condition, the temperature of the second heat source 22 is lower than its preset temperature, and when the vehicle is in special conditions such as climbing, rapid acceleration and other conditions, the temperature of the second heat source 22 will be higher than its preset temperature.

[0034] In some embodiments of the present disclosure, reference Figures 1 to 7As shown, the vehicle thermal management system may include a first pump 51 and a second pump 52, which are arranged downstream of the water tank 1, and the water tank 1 is selectively connected to the first pump 51 and the second pump 52, one end of the first pump 51 is selectively connected or cut off to the first reversing valve 3, and the other end is selectively connected or cut off to the first branch 41; one end of the second pump 52 is selectively connected or cut off to the first reversing valve 3, and the other end is selectively connected or cut off to the third branch 43.

[0035] In this way, the cooling medium in the water tank 1 can be pumped to the first heat source 21 and the second heat source 22 by the first pump 51 and / or the second pump 52. When the vehicle is in a normal driving condition and the temperatures of the first heat source 21 and the second heat source 22 are both within the set temperature range, only one of the first pump 51 and the second pump 52 needs to be turned on to pump the cooling medium in the water tank 1 to the first heat source 21 and the second heat source 22 at the same time, and the first heat source 21 and the second heat source 22 can be connected to the first reversing valve 3 through the first branch 41 to form a cooling circuit, so that the heat dissipation of the first heat source 21 and the second heat source 22 can be met at the same time. When the vehicle is in the above-mentioned special working condition, the temperature of the second heat source 22 exceeds its set temperature range, and the first pump 51 and the second pump 52 need to be turned on at the same time. At this time, the first pump 51 and the second pump 52 are respectively connected to the two valve ports of the first reversing valve 3, so that the cooling medium can be pumped to the first heat source 21 through the first pump 51, and the first pump 51 and the first heat source 21 form an independent cooling circuit through the first branch 41, so as to dissipate heat for the first heat source 21, and the cooling medium is pumped to the second heat source 22 through the second pump 52, and the second pump 52 and the second heat source 22 pass through the third branch 43 and form another independent cooling circuit, so as to independently dissipate heat for the second heat source 22, so as to achieve rapid heat dissipation of the second heat source 22. Through the above scheme, when the vehicle is in normal operating conditions, it is only necessary to turn on the first pump 51 or the second pump 52 to dissipate the heat of the first heat source 21 and the second heat source 22, thereby realizing single water pump operation and reducing the power consumption of the water pump operation; when the vehicle is in the above-mentioned special operating conditions, the first pump 51 and the second pump 52 can be turned on at the same time to realize the operation of the dual water pump independent cooling circuit and quickly reduce the temperature of the second heat source 22.

[0036] In some embodiments of the present disclosure, reference Figures 1 to 7As shown, the first reversing valve 3 can be selectively connected or cut off with the second heat source 22 through the fourth branch 44 and the fifth branch 45 arranged in parallel, wherein the first heat exchanger 61 is arranged on the fifth branch 45. In this way, when the vehicle is in a normal driving condition, the first pump 51 can be connected with the second heat source 22 through the fourth branch 44, and the fifth branch 45 is in a cut-off state, thereby, the first pump 51 can deliver the cooling medium to the second heat source 22 for heat dissipation through the fourth branch 44. When the vehicle is in a special working condition, the fourth branch 44 can be in a cut-off state, and the first pump 51 delivers the cooling medium to the second heat source 22 through the fifth branch 45. Since the first heat exchanger 61 is connected to the fifth branch 45, while realizing the transmission of the cooling medium, the heat of the cooling medium in the fifth branch 45 can also be taken away by the first heat exchanger 61 for secondary cooling, so as to further enhance the heat dissipation effect on the second heat source 22 and improve the heat dissipation efficiency, thereby realizing rapid heat dissipation of the second heat source 22 under special working conditions. The first heat exchanger 61 can be constructed as a refrigerant plate heat exchanger, whereby a large amount of heat can be taken away by the refrigerant through the plate heat exchanger and auxiliary heat dissipation can be performed to improve the heat dissipation efficiency. Figure 3 As shown, when the vehicle is in a normal driving condition, the cooling medium can also be transported through the fifth branch 45 so as to remove the heat of the second heat source 22 through the first heat exchanger 61 to improve the cooling efficiency.

[0037] In some embodiments of the present disclosure, reference Figure 3 and Figure 5 , Figure 6 and Figure 7 As shown, the vehicle thermal management system may further include a heat pump air conditioning system 8, and the first heat exchanger 61 is located in the heat pump air conditioning system 8. In this way, the heat pump air conditioning system 8 can timely exchange heat with the first heat exchanger 61 to export the heat of the first heat exchanger 61, which is conducive to the cooling medium in the fifth branch 45 quickly taking away the heat of the second heat source 22, thereby improving the heat dissipation efficiency of the second heat source 22.

[0038] In some embodiments of the present disclosure, reference Figure 6 and Figure 7As shown, the vehicle thermal management system may include a sixth branch 46, one end of which is selectively connected or cut off with the first reversing valve 3, and the other end is selectively connected or cut off with the first pump 51; and / or, the vehicle thermal management system also includes a seventh branch 47, one end of which is selectively connected or cut off with the first reversing valve 3, and the other end is selectively connected or cut off with the second pump 52. In this way, when the vehicle is in normal driving conditions or the above-mentioned special conditions, the sixth branch 46 and the seventh branch 47 are both in a cut-off state with the first reversing valve 3, and at this time, the first pump 51 and the second pump 52 are only used to pump cooling medium to dissipate heat from the first heat source 21 and the second heat source 22. When the vehicle is running at low temperature, the sixth branch 46 can be connected to the first pump 51, or the seventh branch 47 can be connected to the second pump 52, so that the cooling medium pumped by the first pump 51 can pass through the first heat exchanger 61, the second heat source 22, and the first heat source 21 in sequence, and communicate with the first pump 51 through the sixth branch 46 to form a loop, or the cooling medium pumped by the second pump 52 can pass through the first heat exchanger 61, the second heat source 22, and the first heat source 21 in sequence, and communicate with the second pump 52 through the seventh branch 47 to form a loop, thereby taking away the heat of the second heat source 22 and the first heat source 21. Therefore, since the first heat exchanger 61 is connected to the heat pump air conditioning system 8, the heat of the second heat source 22 and the first heat source 21 can be heat exchanged with the heat pump air conditioning system 8 through the first heat exchanger 61, so that the waste heat can be recovered and the heat pump air conditioning system 8 can be provided with heat to achieve heating, so as to heat the passenger compartment in the vehicle.

[0039] Among them, the first heat exchanger 61 can be used as an evaporator. The liquid refrigerant will vaporize in the first heat exchanger 61 and absorb heat from the air. The low-temperature and low-pressure gaseous refrigerant is compressed by the compressor 81 and becomes a high-temperature and high-pressure liquid. It then releases heat and liquefies into a medium-temperature and high-pressure liquid through the condenser 82. Due to the heat release during liquefaction, it is discharged to the external medium through heat exchange. At this time, the external medium is the air in the passenger compartment of the vehicle. Discharging heat to it is heating the passenger compartment. Then the gas enters the expansion valve 83, throttles and reduces the pressure to become a low-temperature and low-pressure liquid, and absorbs heat through the evaporator to vaporize into a low-temperature and low-pressure gas. The gas enters the compressor 81 again to start the next refrigeration cycle, and this reciprocating process continuously heats the passenger compartment.

[0040] In some embodiments of the present disclosure, reference Figures 1 to 5As shown, the vehicle thermal management system may further include an eighth branch 48, on which the third heat source 23 is disposed, and one end of the eighth branch 48 is selectively connected or disconnected with the first reversing valve 3, and the other end is selectively connected or disconnected with the first pump 51. In this way, the cooling medium pumped by the first pump 51 can be delivered to the third heat source 23 while being delivered to the first heat source 21 and / or the second heat source 22, and is connected to the first reversing valve 3 through the eighth branch 48 to form a cooling circuit, thereby achieving continuous heat dissipation of the third heat source 23.

[0041] In some embodiments of the present disclosure, reference Figures 1 to 5 As shown, the third heat source 23 can be a second heat exchanger 62 for dissipating heat from the fan. The third heat source 23 can be a fan cooling water jacket, wherein the fan is provided at the controller of the motor to increase the gas exchange rate at the controller of the motor to dissipate heat, and the second heat exchanger 62 is provided as a fan cooling water jacket to absorb the heat brought out by the fan, thereby ensuring the heat dissipation effect of the motor controller.

[0042] In some embodiments of the present disclosure, reference Figures 1 to 5 As shown, the vehicle thermal management system may further include a first radiator 71, one end of which is connected to the first branch 41 and the eighth branch 48, and the other end of which is selectively connected or disconnected to the first pump 51. In this way, since the first branch 41 can take away the heat of the first heat source 21 and the second heat source 22, and the eighth branch 48 can take away the heat of the third heat source 23, by setting the first radiator 71 to be connected to the first branch 41 and the eighth branch 48, the heat of the cooling medium flowing in the first branch 41 and the eighth branch 48 can be absorbed, so that the cooling medium after the cooling treatment can also be transported to the first pump 51 to form a cooling circuit, so as to realize the recycling of the cooling medium.

[0043] In some embodiments of the present disclosure, reference Figures 1 to 5 As shown, the vehicle thermal management system may also include a second radiator 72, one end of the second radiator 72 is connected to the third branch 43, and the other end is selectively connected or cut off with the second pump 52. Since the third branch 43 can be connected to the second heat source 22, the heat of the second heat source 22 can be taken away. By connecting the second radiator 72 to the third branch 43, the heat of the cooling medium in the third branch 43 can be absorbed to achieve cooling, and the cooled cooling medium is transported to the second pump 52 to form a cooling loop to achieve the recycling of the cooling medium. Therefore, when the first pump 51 and the second pump 52 are turned on at the same time, and the second heat source 22 is independently cooled by the second pump 52, the absorption rate of the heat of the second heat source 22 by the cooling medium in the third branch 43 can be increased by setting the second radiator 72, thereby improving the heat dissipation effect of the second heat source 22.

[0044] In some embodiments of the present disclosure, reference Figures 1 to 6 As shown, the water tank 1 may include a first outlet 11 and a second outlet 12, the first outlet 11 is selectively connected or cut off with the first pump 51, and the second outlet 12 is selectively connected or cut off with the second pump 52. In this way, when the vehicle is in a normal driving condition, it is only necessary to turn on the first pump 51 or the second pump 52, and open the first outlet 11 or the second outlet 12 corresponding to the first pump 51 or the second pump 52 to meet the delivery of the cooling medium to the first heat source 21 and the second heat source 22. When the vehicle is in the above-mentioned special condition, when it is necessary to turn on the first pump 51 and the second pump 52 at the same time, at this time, by connecting the first outlet 11 with the first pump 51 and connecting the second outlet 12 with the second pump 52, the first outlet 11 and the second outlet 12 can simultaneously deliver the cooling medium to the first pump 51 and the second pump 52, so as to improve the delivery efficiency of the cooling medium, thereby improving the heat dissipation effect of the first heat source 21 and the second heat source 22.

[0045] In some embodiments of the present disclosure, the number of the first heat sources 21 can be set to one or more, wherein when the number of the first heat sources 21 is set to multiple, the multiple first heat sources 21 are arranged in parallel. In this way, when the number of the first heat source 21 is one, the cooling circuit can directly dissipate heat for the first heat source 21, and when multiple first heat sources 21 are connected in parallel, the cooling circuit can dissipate heat for one of the multiple first heat sources 21 in parallel that exceeds a preset temperature, or multiple first heat sources 21.

[0046] In some embodiments of the present disclosure, the number of the second heat sources 22 can be set to one or more, wherein when the number of the second heat sources 22 is set to multiple, the multiple second heat sources 22 are arranged in parallel. In this way, when the number of the second heat source 22 is one, the second heat source 22 can be directly cooled, and when multiple second heat sources 22 are connected in parallel, the cooling circuit can cool one of the multiple second heat sources 22 in parallel that exceeds the preset temperature, or multiple second heat sources 22.

[0047] On the basis of the above technical solutions, three different working modes of the vehicle thermal management system provided by the present disclosure will be described in detail in conjunction with the accompanying drawings.

[0048] In the first working mode (i.e. the vehicle is in the above-mentioned normal driving condition), refer to Figure 2 and Figure 3As shown, the cooling medium in the water tank 1 is pumped to the first heat source 21, the second heat source 22 and the third heat source 23 respectively through the first pump 51 and the first reversing valve 3. After heat exchange, the cooling medium flowing out of the second heat source 22 passes through the second branch 42 downstream of the first heat source 21 and is combined in the first branch 41 with the cooling medium flowing out of the first heat source 21. The cooling medium flowing out of the third heat source 23 flows into the first branch 41 through the eighth branch 48, and then flows to the first pump 51 through the first radiator 71, thereby realizing simultaneous heat dissipation of the first heat source 21, the second heat source 22 and the third heat source 23.

[0049] in, Figure 2 and Figure 3 The difference between the two embodiments is that Figure 2 In the embodiment shown, the second heat source 22 is connected to the first reversing valve 3 via the fourth branch 44, and Figure 3 In the illustrated embodiment, the second heat source 22 is connected to the first reversing valve 3 via the fifth branch 45. At this time, the first heat exchanger 61 is connected, and heat exchange is performed with the first heat exchanger 61 in a timely manner through the heat pump air-conditioning system 8 to export the heat of the first heat exchanger 61, which is beneficial for the cooling medium in the fifth branch 45 to quickly take away the heat of the second heat source 22, thereby further improving the heat dissipation efficiency of the second heat source 22.

[0050] In the second working mode (i.e. the vehicle is in the above special working conditions), refer to Figure 4 and Figure 5 As shown in the figure, the cooling medium in the water tank 1 flows to the first pump 51 and the second pump 52 through two flow paths respectively. The first pump 51 pumps the cooling medium to the first heat source 21 and the third heat source 23 through the first reversing valve 3, and the cooling medium flowing out of the first heat source 21 and the third heat source 23 flows to the first pump 51 through the first radiator 71; the second pump 52 pumps the cooling medium to the second heat source 22 through the first reversing valve 3, and the cooling medium flowing out of the second heat source 22 flows to the second pump 52 through the second radiator 72, thereby realizing independent heat dissipation of the second heat source 22, realizing rapid heat dissipation of the second heat source 22, and thereby improving the heat dissipation efficiency of the second heat source 22.

[0051] in, Figure 4 and Figure 5 The difference between the two embodiments is that Figure 4 In the embodiment shown, the second heat source 22 is connected to the first reversing valve 3 via the fourth branch 44, and Figure 5In the illustrated embodiment, the second heat source 22 is connected to the first reversing valve 3 via the fifth branch 45. At this time, the first heat exchanger 61 is connected, and heat exchange is performed with the first heat exchanger 61 in a timely manner through the heat pump air-conditioning system 8 to export the heat of the first heat exchanger 61, which is beneficial for the cooling medium in the fifth branch 45 to quickly take away the heat of the second heat source 22, thereby further improving the heat dissipation efficiency of the second heat source 22.

[0052] In the third working mode (i.e. the vehicle is running at low temperature), refer to Figure 6 In the illustrated embodiment, the cooling medium pumped by the first pump 51 can flow back to the first pump 51 through the first reversing valve, the first heat exchanger 61, the fifth branch 45, the first heat exchanger 61, the second heat source 22, the second branch 42, and the first heat source 21 in sequence. Since the first heat exchanger 61 is connected to the heat pump air-conditioning system 8, the heat of the second heat source 22 and the first heat source 21 can be exchanged with the heat pump air-conditioning system 8 through the first heat exchanger 61, thereby realizing waste heat recovery and providing heat to the heat pump air-conditioning system 8 for heating, so as to heat the passenger compartment in the vehicle.

[0053] In the third working mode (i.e. the vehicle is running at low temperature), refer to Figure 7 In the illustrated embodiment, the cooling medium pumped by the second pump 52 can flow back to the second pump 52 through the first reversing valve 3, the fifth branch 45, the first heat exchanger 61, the second heat source 22, the second branch 42, the first heat source 21, and the seventh branch 47 in sequence. Since the first heat exchanger 61 is connected to the heat pump air-conditioning system 8, the heat of the second heat source 22 and the first heat source 21 can be exchanged with the heat pump air-conditioning system 8 through the first heat exchanger 61, thereby realizing waste heat recovery and providing heat to the heat pump air-conditioning system 8 for heating, so as to heat the passenger compartment in the vehicle.

[0054] According to a second aspect of the present disclosure, a vehicle is provided, wherein the vehicle is provided with the vehicle thermal management system as described above. The vehicle has all the beneficial effects of the thermal management system as described above, and the present disclosure will not elaborate on them here.

[0055] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0056] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0057] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A vehicle thermal management system, characterized in that: The vehicle thermal management system includes a water storage tank, a first heat source, a second heat source and a first reversing valve; The water tank is selectively connected to the first heat source and / or the second heat source through the first reversing valve, the first heat source is selectively connected to the first branch or the second branch, the second heat source is selectively connected to the second branch or the third branch, and the first branch and the third branch are selectively connected to the first reversing valve.

2. The vehicle thermal management system according to claim 1, characterized in that: The vehicle thermal management system includes a first pump and a second pump, the first pump and the second pump are arranged downstream of the water storage tank, and the water storage tank is selectively communicated with the first pump and the second pump, One end of the first pump is selectively connected to or cut off from the first reversing valve, and the other end of the first pump is selectively connected to or cut off from the first branch; One end of the second pump is selectively connected to or cut off from the first reversing valve, and the other end of the second pump is selectively connected to or cut off from the third branch.

3. The vehicle thermal management system according to claim 2, characterized in that: The first reversing valve is selectively connected or cut off with the second heat source through the fourth branch and the fifth branch arranged in parallel. Wherein, the fifth branch is provided with a first heat exchanger.

4. The vehicle thermal management system according to claim 3, characterized in that: The vehicle thermal management system further includes a heat pump air conditioning system, and the first heat exchanger is located in the heat pump air conditioning system.

5. The vehicle thermal management system according to claim 2 or 3, characterized in that: The vehicle thermal management system includes a sixth branch, one end of the sixth branch is selectively connected to or cut off from the first reversing valve, and the other end of the sixth branch is selectively connected to or cut off from the first pump; and / or, The vehicle thermal management system further includes a seventh branch, one end of which is selectively connected to or blocked from the first reversing valve, and the other end of which is selectively connected to or blocked from the second pump.

6. The vehicle thermal management system according to claim 2, characterized in that: The vehicle thermal management system also includes an eighth branch, on which a third heat source is disposed, and one end of the eighth branch is selectively connected to or blocked from the first reversing valve, and the other end of the eighth branch is selectively connected to or blocked from the first pump.

7. The vehicle thermal management system according to claim 6, characterized in that: The third heat source is a second heat exchanger for dissipating heat from the fan.

8. The vehicle thermal management system according to claim 6, characterized in that: The vehicle thermal management system further includes a first radiator, one end of which is connected to the first branch and the eighth branch, and the other end of which is selectively connected to or blocked from the first pump.

9. The vehicle thermal management system according to claim 2, characterized in that: The vehicle thermal management system further includes a second radiator, one end of which is connected to the third branch, and the other end of which is selectively connected to or blocked from the second pump.

10. The vehicle thermal management system according to claim 2, characterized in that: The water storage tank comprises a first outlet and a second outlet, wherein the first outlet is selectively connected to or blocked from the first pump, and the second outlet is selectively connected to or blocked from the second pump.

11. The vehicle thermal management system according to claim 1, characterized in that: The number of the first heat sources is set to one or more, wherein when the number of the first heat sources is set to multiple, the multiple first heat sources are set in parallel; and / or the number of the second heat sources is set to one or more, wherein when the number of the second heat sources is set to multiple, the multiple second heat sources are set in parallel.

12. A vehicle, characterized in that: The vehicle is provided with a vehicle thermal management system according to any one of claims 1-11.

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