Thermal Management System and Vehicle
By introducing refrigerant circulation and PTC heater into the vehicle thermal management system, the problems of low heating efficiency and insufficient heat utilization in the prior art are solved, and efficient battery and crew cabin heating are achieved.
Patent Information
- Application Number
- CN202211188263.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-09-28
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2042-09-28
AI Technical Summary
The existing vehicle thermal management system relies entirely on PTC heaters when heating the battery, resulting in poor system performance coefficient and high energy consumption. The battery circuit and the warm air circuit of the passenger compartment are independent of each other, and the heat cannot be effectively utilized.
A thermal management system is designed to achieve co-heating of the battery and the occupant chamber by introducing a refrigerant cycle between the battery and the heating circuit, utilizing the heat exchange of refrigerant between the evaporator and the condenser, and introducing a PTC heater if necessary to improve heating efficiency.
The battery heating rate and system performance coefficient are improved, the heat interoperability between the battery circuit and the passenger compartment heating circuit is realized, and the heat utilization efficiency is improved.
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Figure CN115489267B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of heat pumps, and more particularly to a thermal management system and a vehicle. Background Art
[0002] In the existing vehicle thermal management system, when heating the battery, a PTC heater is separately connected to the battery circuit (water circuit), and the water circuit is heated by the PTC heater to raise the temperature of the battery.
[0003] However, if the capacity of the PTC heater is too small, the battery heating rate is low; if the capacity is too large, there is no mass-produced mature product on the market, and the heating completely relies on the PTC, resulting in poor system COP (Coefficient of Performance) and high energy consumption.
[0004] In addition, in the existing vehicle thermal management system, the battery circuit and the warm air circuit of the passenger compartment are independent of each other, and the heat cannot be effectively utilized. Summary of the Invention
[0005] The purpose of this application is to provide a thermal management system and a vehicle, thereby solving the problems of the existing vehicle thermal management system that when heating the battery, it completely relies on the PTC, resulting in poor system coefficient of performance, high energy consumption, and the battery circuit and the warm air circuit of the passenger compartment being independent of each other, and the heat cannot be effectively utilized.
[0006] According to the first aspect of this application, a thermal management system is provided. The thermal management system includes a battery, a first battery water circuit, a second battery water circuit, a heat exchanger, a first warm air water circuit, a second warm air water circuit, a first condenser, a first evaporator, a first compressor, a first refrigerant pipeline, and a first radiator. The battery communicates with the first outlet of the heat exchanger through the first battery water circuit, and the battery communicates with the first inlet of the heat exchanger through the second battery water circuit. The first outlet of the first condenser communicates with the second inlet of the heat exchanger through the first warm air water circuit, and the first inlet of the first condenser communicates with the second outlet of the heat exchanger through the second warm air water circuit. The first radiator is connected between the first outlet and the first inlet of the first condenser. The outlet of the first compressor, the second inlet of the first condenser, the second outlet of the first condenser, the first inlet of the first evaporator, the first outlet of the first evaporator, and the inlet of the first compressor are sequentially communicated through the first refrigerant pipeline.
[0007] In any of the above technical solutions, further, the thermal management system further includes a first heater and a second heater, and both the first heater and the second heater are connected between the first outlet of the first condenser and the second inlet of the heat exchanger.
[0008] In any of the above technical solutions, further, the thermal management system further includes a third heater water circuit, a fourth heater water circuit, and a first three-way valve. The inlet of the first three-way valve is connected to the first heater, the first outlet of the first three-way valve is connected to the second heater, the second outlet of the first three-way valve is connected to the inlet of the first radiator through the third heater water circuit, and the outlet of the first radiator is connected to the first inlet of the first condenser through the fourth heater water circuit.
[0009] In any of the above technical solutions, further, the thermal management system further includes a second refrigerant pipeline, a third refrigerant pipeline, an outdoor heat exchanger, a first electronic expansion valve, and a first two-way valve. The second outlet of the first condenser is connected to the inlet of the outdoor heat exchanger through the second refrigerant pipeline, the first electronic expansion valve is connected between the second outlet of the first condenser and the inlet of the outdoor heat exchanger, the first outlet of the outdoor heat exchanger is connected to the inlet of the first compressor through the third refrigerant pipeline, and the first two-way valve is connected between the first outlet of the outdoor heat exchanger and the inlet of the first compressor.
[0010] In any of the above technical solutions, further, the thermal management system further includes a fourth refrigerant pipeline, a fifth refrigerant pipeline, a second electronic expansion valve, and a second evaporator. The second outlet of the outdoor heat exchanger is connected to the inlet of the second evaporator through the fourth refrigerant pipeline, the second electronic expansion valve is connected between the second outlet of the outdoor heat exchanger and the inlet of the second evaporator, and the outlet of the second evaporator is connected to the inlet of the first compressor through the fifth refrigerant pipeline.
[0011] In any of the above technical solutions, further, the thermal management system further includes a fan. The fan can blow air on the outdoor heat exchanger, and both the second evaporator and the first radiator are arranged in the passenger compartment.
[0012] In any of the above technical solutions, further, the thermal management system further includes a third evaporator, a second compressor, a second condenser, a third electronic expansion valve, a second three-way valve, a third battery water circuit, and a fourth battery water circuit. The first outlet of the third evaporator, the second compressor, the second condenser, the third electronic expansion valve, and the first inlet of the third evaporator are connected in sequence. The inlet of the second three-way valve is connected to the battery, the first outlet of the second three-way valve is connected to the first inlet of the heat exchanger, the second outlet of the second three-way valve is connected to the second inlet of the third evaporator through the fourth battery water circuit, and the second outlet of the third evaporator is connected to the first battery water circuit through the third battery water circuit.
[0013] In any of the above technical solutions, further, the thermal management system further includes a motor circuit and a four-way valve. The first opening and the second opening of the four-way valve are respectively communicated with the first battery water circuit and the second battery water circuit. The third opening and the fourth opening of the four-way valve are respectively communicated with the two openings of the motor circuit. The motor circuit flows through the second inlet and the second outlet of the first evaporator.
[0014] In any of the above technical solutions, further, the thermal management system further includes a second radiator, and the second radiator is disposed in the motor circuit.
[0015] According to a second aspect of the present application, a vehicle is provided, including the thermal management system as described above.
[0016] The thermal management system according to the present application includes a battery, a first battery water circuit, a second battery water circuit, a heat exchanger, a first warm air water circuit, a second warm air water circuit, a first condenser, a first evaporator, a first compressor, a first refrigerant pipeline, and a first radiator. The battery is communicated with the first outlet of the heat exchanger through the first battery water circuit. The battery is communicated with the first inlet of the heat exchanger through the second battery water circuit. The first outlet of the first condenser is communicated with the second inlet of the heat exchanger through the first warm air water circuit. The first inlet of the first condenser is communicated with the second outlet of the heat exchanger through the second warm air water circuit. The first radiator is connected between the first outlet and the first inlet of the first condenser. The outlet of the first compressor, the second inlet of the first condenser, the second outlet of the first condenser, the first inlet of the first evaporator, the first outlet of the first evaporator, and the inlet of the first compressor are sequentially communicated through the first refrigerant pipeline.
[0017] In the thermal management system of the present application, the refrigerant in the first evaporator evaporates and absorbs heat, and the refrigerant in the first condenser condenses and releases heat. The released heat is transferred to the warm air circuit. The battery water circuits (the first battery water circuit and the second battery water circuit) absorb the heat in the warm air circuits (the first warm air circuit and the second warm air circuit) through the heat exchanger, and finally heat up the battery. At the same time, the heat in the warm air circuit can also be dissipated into the passenger compartment through the first radiator to heat the passenger compartment. In addition, PTC heaters can be provided in the battery water circuit and the warm air circuit according to requirements.
[0018] The thermal management system of the present application has a higher heating rate and a stronger system performance coefficient compared with the traditional one. Moreover, the battery circuit and the warm air circuit of the passenger compartment are interconnected, and the heat can be effectively utilized.
[0019] To make the above objects, features, and advantages of the present application more obvious and understandable, the following specific preferred embodiments are given, and detailed descriptions are made in conjunction with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show certain embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related accompanying drawings can also be obtained based on these drawings.
[0021] Figure 1 Shows an overall schematic diagram of a thermal management system according to an embodiment of the present application;
[0022] Figure 2 Shows an overall schematic diagram of a thermal management system in the prior art.
[0023] Icon: 1 - Evaporator; 2 - Condenser; 3 - Battery pack; 4 - Heater; 5 - Radiator;
[0024] 100 - Battery; 101 - First battery water circuit; 102 - Second battery water circuit; 103 - Third battery water circuit; 104 - Fourth battery water circuit; 201 - First warm air water circuit; 202 - Second warm air water circuit; 203 - Third warm air water circuit; 204 - Fourth warm air water circuit; 205 - First three - way valve; 206 - First heater; 207 - Second heater; 300 - Heat exchanger; 400 - First radiator; 501 - First condenser; 502 - First evaporator; 503 - First compressor; 504 - Second evaporator; 505 - Outdoor heat exchanger; 506 - Fan; 507 - First refrigerant pipeline; 508 - Second refrigerant pipeline; 509 - Third refrigerant pipeline; 510 - Fourth refrigerant pipeline; 511 - Fifth refrigerant pipeline; 512 - First two - way valve; 513 - First electronic expansion valve; 514 - Second electronic expansion valve; 601 - Four - way valve; 602 - Third electronic expansion valve; 603 - Second three - way valve; 701 - Fourth electronic expansion valve; 702 - Third three - way valve; 800 - Second radiator. Detailed implementation manners
[0025] The following detailed implementation manners are provided to help the reader obtain a comprehensive understanding of the methods, devices, and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be obvious. For example, the order of operations described herein is merely an example and is not limited to the order set forth herein. Rather, changes that will be obvious after understanding the disclosure of the present application can be made, except for operations that must occur in a specific order. In addition, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.
[0026] The features described herein can be implemented in various forms and should not be construed as limited to the examples described herein. Rather, the examples described herein are provided only to illustrate some of the many possible ways of implementing the methods, devices, and / or systems described herein that will be apparent after understanding the disclosure of the present application.
[0027] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on," "connected to," "coupled to," "above," or "covering" another element, it can be directly "on," "connected to," "coupled to," "above," or "covering" the other element, or there can be one or more other elements intervening therebetween. In contrast, when an element is described as being "directly on," "directly connected to," "directly coupled to," "directly above," or "directly covering" another element, there can be no other elements intervening therebetween.
[0028] As used herein, the term "and / or" includes any one of the listed related items and any combination of any two or more of them.
[0029] Although terms such as "first," "second," and "third" may be used herein to describe various components, elements, regions, layers, or parts, these components, elements, regions, layers, or parts are not limited by these terms. Rather, these terms are only used to distinguish one component, element, region, layer, or part from another. Thus, a first component, element, region, layer, or part described in the examples herein may also be referred to as a second component, element, region, layer, or part without departing from the teachings of the examples.
[0030] For ease of description, spatial relationship terms such as "above," "upper," "below," and "lower" may be used herein to describe the relationship of one element to another as shown in the figures. Such spatial relationship terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, an element described as "above" or "upper" relative to another element will then be "below" or "lower" relative to the other element. Thus, the term "above" includes both the orientations of "above" and "below" depending on the spatial orientation of the device. The device can also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relationship terms used herein will be interpreted accordingly.
[0031] The terms used herein are for the purpose of describing various examples only and are not intended to limit the present disclosure. Unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. The terms "comprising," "including," and "having" enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof that exist, but do not preclude the existence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.
[0032] Due to manufacturing techniques and / or tolerances, variations in the shapes shown in the drawings may occur. Accordingly, the examples described herein are not limited to the specific shapes shown in the drawings, but include changes in shape that occur during manufacturing.
[0033] The features of the examples described herein can be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application.
[0034] The first aspect of the present application provides a thermal management system, thereby solving the problems of the existing vehicle thermal management system that, when heating the battery, completely relies on PTC, resulting in poor system coefficient of performance, high energy consumption, and the independent nature of the battery circuit and the warm air circuit of the passenger compartment, making the heat unable to be effectively utilized.
[0035] Prior to the present application, as Figure 2 shown, in the existing vehicle thermal management system, when heating the battery pack 3, the battery circuit (water circuit) is separately connected to a PTC heater 4, and the water circuit is heated by the PTC heater 4 to raise the temperature of the battery. However, if the capacity of the PTC heater is too small, the battery heating rate is low; if the capacity is too large, there are no mass-produced mature products on the market, and the heating completely relies on PTC, resulting in poor system COP (coefficient of performance) and high energy consumption. In addition, in the existing vehicle thermal management system, the battery circuit and the warm air circuit of the passenger compartment are independent of each other, and the warm air circuit separately dissipates heat to the passenger compartment through a radiator 5, making the heat unable to be effectively utilized.
[0036] In view of this, as Figure 1As shown in the figure, a thermal management system is provided according to the first aspect of the present application, including a battery 100, a first battery water circuit 101, a second battery water circuit 102, a heat exchanger 300, a first warm air water circuit 201, a second warm air water circuit 202, a first condenser 501, a first evaporator 502, a first compressor 503, a first refrigerant pipeline 507, and a first radiator 400. Among them, the battery 100 is connected to the first outlet of the heat exchanger 300 through the first battery water circuit 101, the battery 100 is connected to the first inlet of the heat exchanger 300 through the second battery water circuit 102, the first outlet of the first condenser 501 is connected to the second inlet of the heat exchanger 300 through the first warm air water circuit 201, the first inlet of the first condenser 501 is connected to the second outlet of the heat exchanger 300 through the second warm air water circuit 202, the first radiator 400 is connected between the first outlet and the first inlet of the first condenser 501, and the outlet of the first compressor 503, the second inlet of the first condenser 501, the second outlet of the first condenser 501, the first inlet of the first evaporator 502, the first outlet of the first evaporator 502, and the inlet of the first compressor 503 are sequentially connected through the first refrigerant pipeline 507.
[0037] In the thermal management system of the present application, the refrigerant in the first evaporator 502 evaporates and absorbs heat, the refrigerant in the first condenser 501 condenses and releases heat, and the released heat is transferred to the warm air circuit. The battery water circuits (the first battery water circuit 101 and the second battery water circuit 102) absorb the heat in the warm air circuit (the first warm air circuit water and the second warm air water circuit 202) through the heat exchanger 300, and finally heat up the battery 100. At the same time, the heat in the warm air circuit can also be dissipated into the passenger compartment through the first radiator 400 to heat the passenger compartment. In addition, PTC heaters can be provided in the battery water circuit and the warm air circuit according to requirements. The thermal management system of the present application has a higher heating rate and a stronger system performance coefficient compared to the traditional one. Moreover, the battery circuit and the warm air circuit of the passenger compartment are interconnected, and the heat can be effectively utilized. The specific structures and connection relationships of the battery circuit, the warm air circuit, the refrigerant circuit, and the motor circuit will be described in detail below.
[0038] As an example, as Figure 1 shown, the thermal management system may further include a first heater 206 and a second heater 207, and both the first heater 206 and the second heater 207 are connected between the first outlet of the first condenser 501 and the second inlet of the heat exchanger 300. When heating the battery 100 in winter, the fourth electronic expansion valve 701 is opened, and the first heater 206 and the second heater 207 can improve the efficiency of temperature increase.
[0039] In addition, in the embodiments of the present application, as Figure 1As shown, the thermal management system may further include a third heater water circuit 203, a fourth heater water circuit 204, and a first three-way valve 205. The inlet of the first three-way valve 205 is communicated with the first heater 206. The first outlet of the first three-way valve 205 is communicated with the second heater 207. The second outlet of the first three-way valve 205 is communicated with the inlet of the first radiator 400 through the third heater water circuit 203. The outlet of the first radiator 400 is communicated with the first inlet of the first condenser 501 through the fourth heater water circuit 204. When heating the battery 100 and the passenger compartment in winter, the fourth electronic expansion valve 701, the first outlet and the second outlet of the first three-way valve 205 are opened. Here, the first radiator 400 is disposed in the passenger compartment, and the first radiator 400 can dissipate heat into the passenger compartment to heat the passenger compartment, and the first heater 206 can also improve the heating efficiency of the passenger compartment.
[0040] Further, in the embodiments of the present application, as Figure 1 shown, the thermal management system may further include a second refrigerant pipeline 508, a third refrigerant pipeline 509, an outdoor heat exchanger 505, a first electronic expansion valve 513, and a first two-way valve 512. The second outlet of the first condenser 501 is communicated with the inlet of the outdoor heat exchanger 505 through the second refrigerant pipeline 508. The first electronic expansion valve 513 is connected between the second outlet of the first condenser 501 and the inlet of the outdoor heat exchanger 505. The first outlet of the outdoor heat exchanger 505 is communicated with the inlet of the first compressor 503 through the third refrigerant pipeline 509. The first two-way valve 512 is connected between the first outlet of the outdoor heat exchanger 505 and the inlet of the first compressor 503.
[0041] When heating the battery 100 and the passenger compartment in winter, the fourth electronic expansion valve 701, the first electronic expansion valve 513, the first two-way valve 512, and the first outlet and the second outlet of the first three-way valve 205 are opened. The refrigerants in the outdoor heat exchanger 505 (at this time, the outdoor heat exchanger 505 acts as an evaporator) and the first evaporator 502 evaporate simultaneously to absorb external heat, and the refrigerant in the first condenser 501 (water-cooled condenser) condenses and releases heat, which can further improve the heating efficiency.
[0042] Further, in the embodiments of the present application, as Figure 1 shown, the thermal management system may further include a fourth refrigerant pipeline 510, a fifth refrigerant pipeline 511, a second electronic expansion valve 514, and a second evaporator 504. The second outlet of the outdoor heat exchanger 505 is communicated with the inlet of the second evaporator 504 through the fourth refrigerant pipeline 510. The second electronic expansion valve 514 is connected between the second outlet of the outdoor heat exchanger 505 and the inlet of the second evaporator 504. The outlet of the second evaporator 504 is communicated with the inlet of the first compressor 503 through the fifth refrigerant pipeline 511.
[0043] When cooling the passenger compartment in summer, the first electronic expansion valve 513 and the second electronic expansion valve 514 are opened. The second evaporator 504 is arranged in the passenger compartment. The refrigerant in the second evaporator 504 evaporates to absorb the heat of the passenger compartment, so as to cool the passenger compartment. And the refrigerant in the outdoor heat exchanger 505 condenses and releases heat (at this time, the outdoor heat exchanger 505 is equivalent to a condenser), and the heat is dissipated into the air. In addition, the thermal management system of the present application may further include a fan 506, and the fan 506 can blow air on the outdoor heat exchanger 505 to accelerate the heat dissipation efficiency of the outdoor heat exchanger 505.
[0044] It is worth mentioning here that, as Figure 2 shown, in the existing thermal management system, the refrigeration process of the passenger compartment includes an evaporator 1, a condenser 2 and a compressor. The condenser 2 can only be used for heat dissipation and acts as a condenser, without heat absorption and the heat pump function of acting as an evaporator.
[0045] However, in the thermal management system of the present application, by replacing the condenser with the outdoor heat exchanger 505 with a one-inlet and two-outlet structure, it can be used as a condenser in summer to dissipate heat outward and transfer the heat of the passenger compartment into the air, and can be used as an evaporator in winter to absorb the heat in the environment for heating the passenger compartment.
[0046] In addition, as Figure 1 shown, the thermal management system may further include a third evaporator, a second compressor, a second condenser, a third electronic expansion valve 602, a second three-way valve 603, a third battery water circuit 103, and a fourth battery water circuit 104. Among them, the first outlet of the third evaporator, the second compressor, the second condenser, the third electronic expansion valve 602 and the first inlet of the third evaporator are connected in sequence. The inlet of the second three-way valve 603 is connected to the battery 100. The first outlet of the second three-way valve 603 is connected to the first inlet of the heat exchanger. The second outlet of the second three-way valve 603 is connected to the second inlet of the third evaporator through the fourth battery water circuit 104. The second outlet of the third evaporator is connected to the first battery water circuit 101 through the third battery water circuit 103.
[0047] When cooling the battery in summer, the third electronic expansion valve 602 and the second outlet of the second three-way valve 603 are opened, and the refrigerant in the third evaporator evaporates to absorb the heat in the battery water circuit to cool the battery.
[0048] In the embodiment of the present application, as Figure 1 shown, the thermal management system may further include a motor circuit and a four-way valve 601. The first opening and the second opening of the four-way valve 601 are respectively connected to the first battery water circuit 101 and the second battery water circuit 102. The third opening and the fourth opening of the four-way valve 601 are respectively connected to the two openings of the motor circuit, and the motor circuit flows through the second inlet and the second outlet of the first evaporator 502.
[0049] The waste heat in the motor circuit can be transferred to the first evaporator 502, and then through the refrigerant circuit and the first condenser 501, the heat is transferred to the air-conditioning warm water circuit for heating the passenger compartment or the battery.
[0050] In addition, the thermal management system may further include a second radiator 800. The second radiator 800 is disposed in the motor circuit, for example, connected to a branch through a third three-way valve 702. In summer, the second radiator 800 can be controlled to be turned on by controlling the third three-way valve 702 to dissipate heat from the motor circuit. In winter, the second radiator 800 can be controlled to be turned off by controlling the third three-way valve 702. That is, when starting the vehicle in winter, the second radiator 800 (low-temperature radiator) can be skipped to reduce heat dissipation and achieve better cold start.
[0051] According to a second aspect of the present application, a vehicle is provided, including the thermal management system as described above. For example, the above-mentioned thermal management system can be applied to new energy commercial vehicles.
[0052] The thermal management system according to the present application includes a battery, a first battery water circuit, a second battery water circuit, a heat exchanger, a first warm water circuit, a second warm water circuit, a first condenser, a first evaporator, a first compressor, a first refrigerant pipeline, and a first radiator. Among them, the battery is connected to the first outlet of the heat exchanger through the first battery water circuit, the battery is connected to the first inlet of the heat exchanger through the second battery water circuit, the first outlet of the first condenser is connected to the second inlet of the heat exchanger through the first warm water circuit, the first inlet of the first condenser is connected to the second outlet of the heat exchanger through the second warm water circuit, the first radiator is connected between the first outlet and the first inlet of the first condenser, and the outlet of the first compressor, the second inlet of the first condenser, the second outlet of the first condenser, the first inlet of the first evaporator, the first outlet of the first evaporator, and the inlet of the first compressor are sequentially connected through the first refrigerant pipeline.
[0053] In the thermal management system of the present application, the refrigerant in the first evaporator evaporates and absorbs heat, the refrigerant in the first condenser condenses and releases heat, and the released heat is transferred to the warm air circuit. The battery water circuit (the first battery water circuit and the second battery water circuit) absorbs the heat in the warm air circuit (the first warm air circuit and the second warm air circuit) through the heat exchanger, and finally heats and raises the temperature of the battery. At the same time, the heat in the warm air circuit can also be dissipated into the passenger compartment through the first radiator to heat the passenger compartment. In addition, PTC heaters can be provided in the battery water circuit and the warm air circuit according to requirements.
[0054] Compared with the traditional one, the thermal management system of the present application not only has a high heating rate and a strong system performance coefficient, but also the battery circuit and the warm air circuit of the passenger compartment are interconnected, and the heat can be effectively utilized.
[0055] Finally, it should be noted that the above-described embodiments are only specific implementation manners of the present application, used to illustrate the technical solutions of the present application, rather than limiting it. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that any person skilled in the technical field of the present application can still modify the technical solutions recorded in the foregoing embodiments, or can easily think of changes, or perform equivalent replacements on some of the technical features; and these modifications, changes or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A thermal management system, characterized in that, The thermal management system includes a battery, a first battery water circuit, a second battery water circuit, a heat exchanger, a first warm air water circuit, a second warm air water circuit, a first condenser, a first evaporator, a first compressor, a first refrigerant pipeline, and a first radiator. The battery is connected to the first outlet of the heat exchanger through the first battery water circuit, and the battery is connected to the first inlet of the heat exchanger through the second battery water circuit. The first outlet of the first condenser is connected to the second inlet of the heat exchanger through the first warm air water circuit, and the first inlet of the first condenser is connected to the second outlet of the heat exchanger through the second warm air water circuit. The first radiator is connected between the first outlet and the first inlet of the first condenser. The outlet of the first compressor, the second inlet of the first condenser, the second outlet of the first condenser, the first inlet of the first evaporator, the first outlet of the first evaporator, and the inlet of the first compressor are sequentially connected through the first refrigerant pipeline. The thermal management system further includes a first heater and a second heater. Both the first heater and the second heater are connected between the first outlet of the first condenser and the second inlet of the heat exchanger. The thermal management system further includes a third warm air water circuit, a fourth warm air water circuit, and a first three-way valve. The inlet of the first three-way valve is connected to the first heater, the first outlet of the first three-way valve is connected to the second heater, the second outlet of the first three-way valve is connected to the inlet of the first radiator through the third warm air water circuit, and the outlet of the first radiator is connected to the first inlet of the first condenser through the fourth warm air water circuit. The first radiator is disposed in the passenger compartment.
2. The thermal management system according to claim 1, wherein, The thermal management system further includes a second refrigerant pipeline, a third refrigerant pipeline, an outdoor heat exchanger, a first electronic expansion valve, and a first two-way valve. The second outlet of the first condenser is connected to the inlet of the outdoor heat exchanger through the second refrigerant pipeline, and the first electronic expansion valve is connected between the second outlet of the first condenser and the inlet of the outdoor heat exchanger. The first outlet of the outdoor heat exchanger is connected to the inlet of the first compressor through the third refrigerant pipeline, and the first two-way valve is connected between the first outlet of the outdoor heat exchanger and the inlet of the first compressor.
3. The thermal management system according to claim 2, wherein, The thermal management system further includes a fourth refrigerant pipeline, a fifth refrigerant pipeline, a second electronic expansion valve, and a second evaporator. The second outlet of the outdoor heat exchanger is connected to the inlet of the second evaporator through the fourth refrigerant pipeline, and the second electronic expansion valve is connected between the second outlet of the outdoor heat exchanger and the inlet of the second evaporator. The outlet of the second evaporator is connected to the inlet of the first compressor through the fifth refrigerant pipeline.
4. The thermal management system according to claim 3, wherein, The thermal management system further includes a fan that can blow air on the outdoor heat exchanger, and both the second evaporator and the first radiator are disposed in the passenger compartment.
5. The thermal management system according to claim 1, wherein The thermal management system further includes a third evaporator, a second compressor, a second condenser, a third electronic expansion valve, a second three-way valve, a third battery water circuit, and a fourth battery water circuit. A first outlet of the third evaporator, the second compressor, the second condenser, the third electronic expansion valve, and a first inlet of the third evaporator are connected in sequence. An inlet of the second three-way valve is connected to the battery. A first outlet of the second three-way valve is connected to a first inlet of the heat exchanger. A second outlet of the second three-way valve is connected to a second inlet of the third evaporator through the fourth battery water circuit. A second outlet of the third evaporator is connected to the first battery water circuit through the third battery water circuit.
6. The thermal management system according to claim 1, characterized in that, The thermal management system further includes a motor circuit and a four-way valve. A first opening and a second opening of the four-way valve are respectively connected to the first battery water circuit and the second battery water circuit. A third opening and a fourth opening of the four-way valve are respectively connected to two openings of the motor circuit. The motor circuit flows through a second inlet and a second outlet of the first evaporator.
7. The thermal management system according to claim 6, wherein The thermal management system further includes a second radiator. The second radiator is disposed in the motor circuit.
8. A vehicle, characterized in that, It includes the thermal management system according to any one of claims 1-7.
Citation Information
Patent Citations
Whole vehicle heat management system of integrated indirect heat pump for electric vehicle
CN110774863A