Thermal management system

Abstract

The heat management system comprises a compressor, a first heat exchanger, a second heat exchanger, a first branch and a first valve, the first branch comprises a first pipeline, a second pipeline, a third pipeline and a fourth pipeline, and the two ends of the first pipeline are connected with the first valve and an outlet part of the compressor correspondingly; two ends of the second pipeline are respectively connected with the first valve and the first heat exchanger, two ends of the third pipeline are respectively connected with the first valve and the second heat exchanger, and two ends of the fourth pipeline are respectively connected with the first valve and the inlet part of the compressor; the first pipeline is provided with a first pipe cavity, the second pipeline is provided with a second pipe cavity, the third pipeline is provided with a third pipe cavity, the fourth pipeline is provided with a fourth pipe cavity, and at least two of the first pipe cavity, the second pipe cavity, the third pipe cavity and the fourth pipe cavity can be connected, disconnected or in throttling communication through the first valve. The number of the control valves used by the thermal management system is small, so that the structure of the thermal management system is simplified.

Description

Technical Field

[0001] This application relates to the field of thermal management technology, and more particularly to a thermal management system for vehicle air conditioning. Background Technology

[0002] In related technologies, the control valve of a thermal management system is connected to two adjacent pipelines. The control valve controls the flow of the working medium in the two adjacent pipelines to enable the thermal management system to have different operating modes. However, as the number of operating modes of thermal management systems continues to increase, the number of pipelines and control valves used in the thermal management system also increases, making the structure of the thermal management system more complex. Summary of the Invention

[0003] This application aims to provide a thermal management system with a simplified structure.

[0004] On one hand, embodiments of this application provide a thermal management system, including: a compressor, a first heat exchanger, a second heat exchanger, a first branch, and a first valve. The compressor includes a compressor inlet and a compressor outlet. The first branch includes a first pipe, a second pipe, a third pipe, and a fourth pipe. The two ends of the first pipe are respectively connected to the first valve and the compressor outlet. The two ends of the second pipe are respectively connected to the first valve and the first heat exchanger. The two ends of the third pipe are respectively connected to the first valve and the second heat exchanger. The two ends of the fourth pipe are respectively connected to the first valve and the compressor inlet.

[0005] The first pipeline has a first cavity, the second pipeline has a second cavity, the third pipeline has a third cavity, and the fourth pipeline has a fourth cavity. The first valve has a conducting state, a disconnected state, and a throttling state. At least two of the first cavity, the second cavity, the third cavity, and the fourth cavity can be connected by the first valve through conducting, disconnecting, or throttling.

[0006] This application allows at least two of the first, second, third, and fourth cavities to be connected, disconnected, or throttled via a first valve. The flow of the working medium within the first, second, third, and fourth cavities can be controlled using the first valve. The thermal management system uses fewer control valves, thus simplifying its structure.

[0007] On the other hand, embodiments of this application also provide a thermal management system, including: a first heat exchanger, a second heat exchanger, a third heat exchanger, a heat exchanger, a second branch and a second valve, the second branch including a fifth pipe, a sixth pipe, a seventh pipe and an eighth pipe, the two ends of the fifth pipe being connected to the second valve and the second heat exchanger respectively, the two ends of the sixth pipe being connected to the second valve and the first heat exchanger respectively, the two ends of the seventh pipe being connected to the second valve and the third heat exchanger respectively, and the two ends of the eighth pipe being connected to the second valve and the heat exchanger respectively.

[0008] The fifth pipeline has a fifth cavity, the sixth pipeline has a sixth cavity, the seventh pipeline has a seventh cavity, and the eighth pipeline has an eighth cavity. The second valve has a conducting state, a disconnecting state, and a throttling state. At least two of the fifth, sixth, seventh, and eighth cavities can be connected by the second valve through conducting, disconnecting, or throttling.

[0009] This application allows at least two of the fifth, sixth, seventh, and eighth cavities to be connected, disconnected, or throttled via a second valve. The flow of the working medium in the fifth, sixth, seventh, and eighth cavities can be controlled using the second valve. The thermal management system uses fewer control valves, thus simplifying the structure of the thermal management system. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the connection structure of the thermal management system of this application;

[0011] Figure 2 This application Figure 1 A schematic diagram of the connection structure of the equivalent system of the thermal management system;

[0012] Figure 3 This application Figure 1 A schematic diagram of the connection structure of the first valve and the first branch of the thermal management system shown.

[0013] Figure 4 This application Figure 1 The diagram shows the connection structure of the second valve and the second branch of the thermal management system.

[0014] Figure 5 This application Figure 1 The diagram shows the first type of interconnection structure of the thermal management system when it is in heating mode.

[0015] Figure 6 This application is Figure 1 The diagram shows the second type of interconnection structure of the thermal management system when it is in heating mode.

[0016] Figure 7 This application Figure 1 The diagram shows the connection structure of the thermal management system when it is in hot gas bypass mode.

[0017] Figure 8 This application Figure 1 The diagram shows the first type of interconnection structure of the thermal management system when it is in cooling mode.

[0018] Figure 9 This application Figure 1 The diagram shows the second type of interconnection structure of the thermal management system when it is in cooling mode.

[0019] Figure 10 This application Figure 1 The diagram shows the third type of interconnection structure of the thermal management system when it is in cooling mode.

[0020] Figure 11 This application Figure 1 The diagram shows the first type of interconnection structure of the thermal management system when it is in dehumidification mode.

[0021] Figure 12 This application Figure 1 The diagram shows the second type of interconnection structure of the thermal management system when it is in dehumidification mode.

[0022] Figure 13 This application Figure 1 The diagram shows the third type of interconnection structure of the thermal management system when it is in dehumidification mode.

[0023] Figure 14 This application Figure 1 The diagram shows the fourth type of interconnection structure of the thermal management system when it is in dehumidification mode.

[0024] Figure 15 This application Figure 1 The diagram shows the fifth interconnection structure of the thermal management system when it is in dehumidification mode.

[0025] Figure 16 This application Figure 1 The diagram shows the interconnection structure of the thermal management system when it is in de-icing mode.

[0026] Figure 17 This application Figure 1 A schematic diagram of the connection structure of a first alternative embodiment of the thermal management system is shown.

[0027] Figure 18 This application Figure 1 The diagram shows the connection structure of a second alternative embodiment of the thermal management system. Detailed Implementation

[0028] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0029] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0030] It should be understood that the terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, "a" or "one," and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one; "multiple" indicates two or more. Unless otherwise stated, terms such as "front," "rear," "lower," and / or "upper" are for illustrative purposes only and are not limited to a location or spatial orientation. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects.

[0031] The thermal management system of an exemplary embodiment of this application will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementations can complement or combine with each other.

[0032] According to a specific embodiment of the thermal management system of this application, such as Figure 1 As shown, the thermal management system includes a compressor 10, a first heat exchanger 11, a second heat exchanger 12, and a first branch line 13. The structure of the first heat exchanger 11 can be referenced from the indoor heat exchanger used in vehicle air conditioning, and the structure of the second heat exchanger 12 can be referenced from the outdoor heat exchanger used in vehicle air conditioning. The compressor 10 includes a compressor inlet 101 and a compressor outlet 102. The compressor inlet 101, compressor outlet 102, second heat exchanger 12, and first heat exchanger 11 are all connected to the first branch line 13. In related technologies, the thermal management system also includes control valves 14. During long-term research and development and practice, the inventors discovered that some control valves 14 in the thermal management system are concentrated in certain areas, and these control valves 14 are interconnected through pipelines, such as... Figure 2 As shown, a number of control valves 14 are provided in the first branch 13. The control valves 14 in the first branch 13 can control the flow of the working medium between the compressor 10, the first heat exchanger 11 and the second heat exchanger 12, so that the thermal management system can be in different working modes. The control valves 14 in the first branch 13 are very suitable to be integrated into a multi-way control valve to reduce the number of control valves 14 in the thermal management system and simplify the structure of the thermal management system.

[0033] like Figure 1 and Figure 3As shown, specifically in this embodiment, the thermal management system includes a first valve 15, and a first branch 13 includes a first pipe 131, a second pipe 132, a third pipe 133, and a fourth pipe 134. The two ends of the first pipe 131 are connected to the first valve 15 and the compressor outlet 102, respectively. The two ends of the second pipe 132 are connected to the first valve 15 and the first heat exchanger 11, respectively. The two ends of the third pipe 133 are connected to the first valve 15 and the second heat exchanger 12, respectively. The two ends of the fourth pipe 134 are connected to the first valve 15 and the compressor inlet 101, respectively. The first pipeline 131 has a first cavity 1311, the second pipeline 132 has a second cavity 1321, the third pipeline 133 has a third cavity 1331, and the fourth pipeline 134 has a fourth cavity 1341. The first valve 15 has a conducting state, a disconnected state, and a throttling state. At least two of the four cavities 1311, 1321, 1331, and 1341 can be connected, disconnected, or throttled through the first valve 15. In this embodiment, the flow of the working medium between the compressor inlet 101, the compressor outlet 102, the second heat exchanger 12, and the first heat exchanger 11 can be controlled using the first valve 15. By integrating multiple control valves 14 in the first branch 13 into the first valve 15, the number of control valves 14 used in the thermal management system is reduced, and the structure of the thermal management system is simplified.

[0034] It is understandable that at least two of the four lumens 1311, 1321, 1331, and 1341 can be connected through the first valve 15, meaning that the working medium can flow through the first valve 15 and the flow rate of the working medium remains almost unchanged when flowing through the first valve 15; at least two of the four lumens 1311, 1321, 1331, and 1341 can be disconnected through the first valve 15, where "disconnected" means "not connected," that is, the working medium can hardly pass through the first valve 15; at least two of the four lumens 1311, 1321, 1331, and 1341 can be throttled and connected through the first valve 15, meaning that the first valve 15 is in a throttling state and the flow rate of the working medium decreases when flowing through the first valve 15. For example, when the first cavity 1311 and the second cavity 1321 are throttled and connected by the first valve 15, if the working medium flows from the first cavity 1311 to the second cavity 1321, then the flow rate of the working medium in the second cavity 1321 is less than the flow rate of the working medium in the first cavity 1311; if the working medium flows from the second cavity 1321 to the first cavity 1311, then the flow rate of the working medium in the second cavity 1321 is greater than the flow rate of the working medium in the first cavity 1311. Similar descriptions in this embodiment are for reference only and will not be repeated hereafter.

[0035] like Figure 1and Figure 3 As shown, more specifically, in this embodiment, the compressor inlet 101 has a compressor inlet 1011, and the compressor outlet 102 has a compressor outlet 1021. The first heat exchanger 11 includes a first heat exchange channel 111, which has a first heat exchange channel cavity 1111. The first heat exchange channel 111 includes a first end 1112 and a second end 1113, which are located at opposite ends of the first heat exchange channel 111. The second heat exchanger 12 includes a second heat exchange channel 121, which has a second heat exchange channel cavity 1211. The second heat exchange channel 121 includes a third end 1212 and a fourth end 1213, which are located at opposite ends of the second heat exchange channel 121. The first valve 15 includes a first conductive section 151, a second conductive section 152, a third conductive section 153, and a fourth conductive section 154. The first conductive section 151 has a first conductive port 1511, the second conductive section 152 has a second conductive port 1521, the third conductive section 153 has a third conductive port 1531, and the fourth conductive section 154 has a fourth conductive port 1541. The two ends of the first pipeline 131 are connected to the compressor outlet 102 and the first conductive section 151, respectively. Both the compressor outlet 1021 and the first conductive port 1511 are connected to the first pipe cavity 1311. The two ends of the second pipeline 132 are connected to the first end 1112 and the second conductive section 152, respectively. Both the first heat exchange flow channel cavity 1111 and the second conductive port 1521 are connected to the second pipe cavity 1321. The two ends of the third pipe 133 are connected to the third end 1212 and the third conductive part 153, respectively. The second heat exchange flow channel cavity 1211 and the third conductive port 1531 are both connected to the third pipe cavity 1331. The two ends of the fourth pipe 134 are connected to the compressor inlet 101 and the fourth conductive part 154, respectively. The compressor inlet 1011 and the fourth conductive port 1541 are both connected to the fourth pipe cavity 1341. The first valve 15 can enable at least two of the four conductive ports 1511, 1521, 1531, and 1541 to be connected, disconnected, or throttled.

[0036] like Figure 1 and Figure 4 As shown, the thermal management system also includes a third heat exchanger 16, a heat exchanger 17, and a second branch 18. The structure of the third heat exchanger 16 can be referenced from the interior heat exchanger used in vehicle air conditioning systems. The second heat exchanger 12, the first heat exchanger 11, the third heat exchanger 16, and the heat exchanger 17 are all connected to the second branch 18. Figure XAs shown in the related technology, the second branch 18 is also equipped with several control valves 14. The control valves 14 in the second branch 18 can control the flow of the working medium between the second heat exchanger 12, the first heat exchanger 11, the third heat exchanger 16 and the heat exchanger 17, so that the thermal management system can be in different working modes. The control valves 14 in the second branch 18 are located in a relatively concentrated area and are connected to each other through pipelines. Therefore, the control valves 14 in the second branch 18 are also very suitable to be integrated into a multi-way control valve to reduce the number of control valves 14 in the thermal management system and simplify the structure of the thermal management system.

[0037] like Figure 1 and Figure 4 As shown, specifically in this embodiment, the thermal management system further includes a second valve 19, and the second branch 18 includes a fifth pipe 181, a sixth pipe 182, a seventh pipe 183, and an eighth pipe 184. The two ends of the fifth pipe 181 are respectively connected to the second valve 19 and the second heat exchanger 12, the two ends of the sixth pipe 182 are respectively connected to the second valve 19 and the first heat exchanger 11, the two ends of the seventh pipe 183 are respectively connected to the second valve 19 and the third heat exchanger 16, and the two ends of the eighth pipe 184 are respectively connected to the second valve 19 and the heat exchanger 17. The fifth pipe 181 has a fifth cavity 1811, the sixth pipe 182 has a sixth cavity 1821, the seventh pipe 183 has a seventh cavity 1831, and the eighth pipe 184 has an eighth cavity 1841. The second valve 19 has a conducting state, a disconnecting state, and a throttling state. At least two of the five cavities 1811, 1821, 1831, and 1841 can be connected, disconnected, or throttled through the second valve 19. In this embodiment, the flow of the working medium between the second heat exchanger 12, the first heat exchanger 11, the third heat exchanger 16, and the heat exchanger 17 can be controlled using the second valve 19. By integrating multiple control valves 14 in the second branch 18 into the second valve 19, the number of control valves 14 used in the thermal management system is reduced, and the structure of the thermal management system is simplified.

[0038] like Figure 1 and Figure 4As shown, more specifically, in this embodiment, the third heat exchanger 16 includes a third heat exchange channel portion 161, which has a third heat exchange channel cavity 1611. The third heat exchange channel portion 161 includes a fifth end 1612 and a sixth end 1613, which are respectively located at both ends of the third heat exchange channel portion 161. The heat exchanger 17 includes a first heat exchange channel portion 171, which includes a first heat exchange channel cavity 1711. The first heat exchange channel portion 171 includes a seventh end 1712 and an eighth end 1713, which are respectively located at both ends of the first heat exchange channel portion 171. The second valve 19 includes a fifth conductive section 191, a sixth conductive section 192, a seventh conductive section 193, and an eighth conductive section 194. The fifth conductive section 191 has a fifth conductive port 1911, the sixth conductive section 192 has a sixth conductive port 1921, the seventh conductive section 193 has a seventh conductive port 1931, and the eighth conductive section 194 has an eighth conductive port 1941. The two ends of the fifth pipe 181 are connected to the fourth end 1213 and the fifth conductive section 191, respectively. The second heat exchange flow channel cavity 1211 and the fifth conductive port 1911 are both connected to the fifth pipe cavity 1811. The two ends of the sixth pipe 182 are connected to the second end 1113 and the sixth conductive section 192, respectively. The first heat exchange flow channel cavity 1111 and the sixth conductive port 1921 are both connected to the sixth pipe cavity 1821. The two ends of the seventh pipe 183 are connected to the fifth end 1612 and the seventh conductive part 193, respectively. The third heat exchange flow channel cavity 1611 and the seventh conductive port 1931 are both connected to the seventh pipe cavity 1831. The two ends of the eighth pipe 184 are connected to the seventh end 1712 and the eighth conductive part 194, respectively. The first heat exchange flow channel cavity 1711 and the eighth conductive port 1941 are both connected to the eighth pipe cavity 1841. The second valve 19 can control at least two of the five conductive ports 1911, 1921, 1931, and 1941 to be connected, disconnected, or throttled.

[0039] like Figure 1 and Figure 4As shown, in this embodiment, the second branch 18 further includes a ninth pipe 185, which has a ninth cavity 1851. The two ends of the ninth pipe 185 are connected to the fifth pipe 181 and the sixth pipe 182, respectively. Both the fifth cavity 1811 and the sixth cavity 1821 are connected to the ninth cavity 1851. The thermal management system also includes a first one-way valve 20 and a second one-way valve 21. The first one-way valve 20 has a first one-way flow channel cavity 201, and the second one-way valve 21 has a second one-way flow channel cavity 211. The ninth pipe 185 includes a first branch 1852 and a second branch 1853. The first branch 1852 has a first branch flow channel cavity 1854, and the second branch 1853 has a second branch flow channel cavity 1855. The first one-way valve 20 is connected to the first branch 1852 and the second branch 1853 at both ends, and the first branch flow channel cavity 1854 and the second branch flow channel cavity 1855 are both connected to the first one-way flow channel cavity 201. The first branch 1852 is connected to the fifth pipe 181, and the first branch flow channel cavity 1854 is connected to the fifth pipe cavity 1811. The second branch 1853 is connected to the sixth pipe 182, and the second branch flow channel cavity 1855 is connected to the sixth pipe cavity 1821. From the first branch 1852 to the second branch 1853, the first one-way valve 20 is in the open state. The sixth pipe 182 includes a third branch 1822 and a fourth branch 1823. The third branch 1822 has a third branch flow channel cavity 1824, and the fourth branch 1823 has a fourth branch flow channel cavity 1825. The two ends of the second one-way valve 21 are connected to the third branch 1822 and the fourth branch 1823, respectively. The flow channels 1824 and 1825 of the third branch are both connected to the second one-way flow channel 211. The third branch 1822 is connected to the second end 1113, and the third branch flow channel 1824 is connected to the first heat exchange flow channel 1111. The second branch 1853 and the fourth conductive part 154 are both connected to the fourth branch 1823, and the second branch flow channel 1855 and the fourth conductive port 1541 are both connected to the fourth branch flow channel 1825. From the third branch 1822 to the fourth branch 1823, the second one-way valve 21 is in the open state.

[0040] like Figure 1As shown, in this embodiment, the thermal management system further includes a third branch 22, which includes a tenth pipe 221, an eleventh pipe 222, and a twelfth pipe 223. The tenth pipe 221 has a tenth cavity 2211, the eleventh pipe 222 has an eleventh cavity 2221, and the twelfth pipe 223 has a twelfth cavity 2231. The two ends of the tenth pipe 221 are connected to the sixth end 1613 and the twelfth pipe 223, respectively, and the third heat exchange channel cavity 1611 and the twelfth cavity 2231 are both connected to the tenth cavity 2211. The two ends of the eleventh pipe 222 are connected to the eighth end 1713 and the twelfth pipe 223, respectively, and the first heat exchange channel cavity 171 and the twelfth cavity 2231 are both connected to the eleventh cavity 2221. The twelfth pipe 223 is connected to the fourth pipe 134, and the twelfth cavity 2231 is connected to the fourth cavity 1341. The thermal management system includes a third one-way valve 23. The tenth pipe 221 includes a fifth branch 2212 and a sixth branch 2213. The third one-way valve 23 has a third one-way flow channel cavity 231, the fifth branch 2212 has a fifth branch flow channel cavity 2214, and the sixth branch 2213 has a sixth branch flow channel cavity 2215. The two ends of the third one-way valve 23 are connected to the fifth branch 2212 and the sixth branch 2213, respectively. The fifth branch flow channel cavity 2214 and the sixth branch flow channel cavity 2215 are both connected to the third one-way flow channel cavity 231. The fifth branch 2212 is connected to the sixth end 1613, and the fifth branch flow channel cavity 2214 is connected to the third heat exchange flow channel cavity 1611. The sixth branch 2213 is connected to the twelfth pipe 223, and the sixth branch flow channel cavity 2215 is connected to the twelfth pipe cavity 2231. From the fifth branch 2212 to the sixth branch 2213, the third check valve 23 is in the open state.

[0041] like Figure 1 , Figure 3 and Figure 4As shown, in this embodiment, the heat exchange system further includes a gas-liquid separator 24 and an intermediate heat exchanger 25. The gas-liquid separator 24 is disposed in the fourth pipeline 134, which includes a seventh branch 1342 and an eighth branch 1343. The two ends of the gas-liquid separator 24 are connected to the seventh branch 1342 and the eighth branch 1343, respectively. The twelfth pipeline 223 and the first valve 15 are both connected to the seventh branch 1342, and the eighth branch 1343 is connected to the inlet 101 of the compressor 10. The intermediate heat exchanger 25 includes a first intermediate heat exchange channel section 251 and a second intermediate heat exchange channel section 252. The first intermediate heat exchange channel section 251 is located in the fourth branch 1823, which includes a first part 1826 and a second part 1827. The two ends of the first intermediate heat exchange channel section 251 are connected to the first part 1826 and the second part 1827, respectively. The second branch 1853 and the third branch 1822 are both connected to the first part 1826. The second valve 19 is connected to the second part 1827. The second intermediate heat exchange channel section 252 is located in the eighth branch 1343, which includes a third part 1344 and a fourth part 1344. The two ends of the second intermediate heat exchange channel section 252 are connected to the third part 1344 and the fourth part 1344, respectively. The third part 1344 is connected to the gas-liquid separator 24, and the fourth part 1344 is connected to the inlet 101 of the compressor 10.

[0042] like Figure 1 As shown, in this embodiment, the heat exchanger 17 further includes a second heat exchange channel section 172, which has a second heat exchange channel cavity 1721. The first heat exchange channel cavity 1711 and the second heat exchange channel cavity 1721 are isolated from each other. The working medium flowing in the first heat exchange channel cavity 1711 and the working medium flowing in the second heat exchange channel cavity 1721 can exchange heat. The heat exchanger 17 can be a plate heat exchanger, a water-cooled heat exchanger, etc. The thermal management system also includes a fourth heat exchanger 26, a battery 27, a motor 28, a first pump 29, and a second pump 30. The structure of the fourth heat exchanger 26 can refer to the outdoor heat exchanger used in vehicle air conditioning, etc. In a specific operating mode of the thermal management system, the battery 27 and / or the motor 28 can be connected in series or in parallel with the fourth heat exchanger 26 and / or the second heat exchange channel section 172 to enable the thermal management system to achieve different functions.

[0043] like Figures 5 to 7As shown, the thermal management system has a heating mode. When the thermal management system is in heating mode, the first cavity 1311 and the second cavity 1321 are connected through the first valve 15, and the third cavity 1331 and the fourth cavity 1341 are connected through the first valve 15. At the same time, the sixth cavity 1821 and the fifth cavity 1811 are throttled and connected through the second valve 19, and / or, the sixth cavity 1821 and the eighth cavity 1841 are throttled and connected through the second valve 19.

[0044] Specifically, the heating mode can be used for passenger cabin heating. In this mode, the first cavity 1311 and the second cavity 1321 are connected through the first valve 15, the third cavity 1331 and the fourth cavity 1341 are connected through the first valve 15, and the sixth cavity 1821 and the fifth cavity 1811 are throttled and connected through the second valve 19. The compressor 10, the first heat exchanger 11, the sixth conductive part 192, the fifth conductive part 191, and the second heat exchanger 12 are connected in series. The second valve 19 is equivalent to an expansion valve. When the working medium flows in the second heat exchanger 12, it absorbs heat from the atmospheric environment and releases heat when it flows in the first heat exchanger 11, thereby transferring the heat from the atmospheric environment to the passenger cabin.

[0045] When the thermal management system heats the passenger cabin, it can also utilize the waste heat from the motor 28. At this time, the first and second chambers 1311 and 1321 are connected via the first valve 15; the third and fourth chambers 1331 and 1341 are connected via the first valve 15; the sixth and fifth chambers 1821 and 1811 are throttled and connected via the second valve 19; and the sixth and eighth chambers 1841 are throttled and connected via the second valve 19. The compressor 10, the first heat exchanger 11, the sixth connecting section 192, and the fifth connecting section 191 are also connected. The second heat exchanger 12 is connected in series. The compressor 10, the first heat exchanger 11, the sixth conductive section 192, the eighth conductive section 194, and the first heat exchange channel section 171 are connected in series. The motor 28, the first pump 29, and the second heat exchange channel section 172 are connected in series. The second valve 19 is equivalent to two expansion valves. When the working medium flows through the first heat exchange channel section 171, it can also absorb the heat of the working medium flowing in the second heat exchange channel section 172, thereby transferring the heat from the atmospheric environment and the heat generated by the motor 28 to the passenger compartment. At the same time, the battery 27, the second pump 30, and the second heat exchange channel section 172 can also be connected in series so that the battery 27 can absorb the heat generated by the motor 28, or the heat generated by the battery 27 can also be transferred to the passenger compartment through the heat exchanger 17.

[0046] like Figure 7 As shown, the thermal management system has a hot gas bypass mode. When the thermal management system is in the hot gas bypass mode, the compressor 10 is in working condition, and the first chamber 1311 and the fourth chamber 1341 are connected through the first valve 15. The thermal management system can be in both the hot gas bypass mode and the heating mode at the same time.

[0047] like Figures 8 to 10 As shown, the thermal management system has a cooling mode. When the thermal management system is in cooling mode, the compressor 10 is in operation, and the first chamber 1311 and the third chamber 1331 are connected through the first valve 15. At the same time, the sixth chamber 1821 and the seventh chamber are connected through the second valve 19, and / or, the sixth chamber 1821 and the eighth chamber 1841 are connected through the second valve 19.

[0048] Specifically, the cooling mode can be used for passenger cabin cooling. In this mode, the first cavity 1311 and the third cavity 1331 are connected through the first valve 15, and the sixth cavity 1821 and the seventh cavity are throttled and connected through the second valve 19. The compressor 10, the second heat exchanger 12, the sixth conductive part 192, the seventh conductive part 193, and the third heat exchanger 16 are connected in series, and the second valve 19 is equivalent to an expansion valve. When the working medium flows in the second heat exchanger 12, it releases heat, and when it flows in the third heat exchanger 16, it absorbs heat, thereby transferring the heat of the passenger cabin to the atmospheric environment. At this time, the battery 27 and the motor 28 can both dissipate heat through the fourth heat exchanger 26. The fourth heat exchanger 26, the motor 28, and the first pump 29 are connected in series, and the fourth heat exchanger 26, the battery 27, and the second pump 30 are connected in series.

[0049] The cooling mode can be used to cool the battery 27. In this mode, the first cavity 1311 and the third cavity 1331 are connected through the first valve 15, and the sixth cavity 1821 and the eighth cavity 1841 are throttled and connected through the second valve 19. The compressor 10, the second heat exchanger 12, the sixth conductive section 192, the eighth conductive section 194, and the first heat exchange channel section 171 are connected in series. The battery 27, the second pump 30, and the second heat exchange channel section 172 are connected in series. The second valve 19 acts as an expansion valve. The working medium flowing in the first heat exchange channel section 171 can absorb the heat of the working medium flowing in the second heat exchange channel section 172, thereby cooling the battery 27. The motor 28 can dissipate heat through the fourth heat exchanger 26, that is, the fourth heat exchanger 26, the motor 28, and the first pump 29 are connected in series.

[0050] The cooling mode can be used simultaneously for passenger cabin cooling and battery 27 cooling. In this mode, the first cavity 1311 and the third cavity 1331 are connected through the first valve 15, the sixth cavity 1821 and the seventh cavity are throttled and connected through the second valve 19, and the sixth cavity 1821 and the eighth cavity 1841 are throttled and connected through the second valve 19. The compressor 10, the second heat exchanger 12, the sixth conductive section 192, the seventh conductive section 193 and the third heat exchanger 16 are connected in series, and the compressor 10, the second heat exchanger 12, the sixth conductive section 192, the eighth conductive section 194 and the first heat exchange flow channel section 171 are connected in series. The second valve 19 is equivalent to two expansion valves.

[0051] like Figures 11 to 15 As shown, the thermal management system has a dehumidification mode. When the thermal management system is in dehumidification mode, the compressor 10 is in operation. The thermal management system can be used for heating dehumidification or cooling dehumidification, etc.

[0052] Specifically, when the thermal management system is in heating and dehumidification mode, the first cavity 1311 and the second cavity 1321 are connected through the first valve 15, and the third cavity 1331 and the fourth cavity 1341 are connected through the first valve 15. Simultaneously, the sixth cavity 1821 and the fifth cavity 1811 are throttled and connected through the second valve 19, and the sixth cavity 1821 and the seventh cavity 1831 are throttled and connected through the second valve 19. At this time, the battery 27 can be heated by the motor 28, and the battery 27, the second pump 30, the first pump 29, and the motor 28 are connected in series. Alternatively, both the battery 27 and the motor 28 can dissipate heat through the fourth heat exchanger 26, and the motor 28, the first pump 29, and the fourth heat exchanger 26 are connected in series, as are the battery 27, the second pump 30, and the fourth heat exchanger 26.

[0053] Heating and dehumidification can also be achieved through cooling via motor 28. In this case, the first cavity 1311 and the second cavity 1321 are connected through the first valve 15, the third cavity 1331 and the fourth cavity 1341 are connected through the first valve 15, the sixth cavity 1821 and the fifth cavity 1811 are throttled and connected through the second valve 19, the sixth cavity 1821 and the seventh cavity are throttled and connected through the second valve 19, the sixth cavity 1821 and the eighth cavity 1841 are throttled and connected through the second valve 19, and the battery 27, the second pump 30 and the second heat exchange channel 172 are connected in series. Heating and dehumidification can be achieved through battery 27, and cooling can also be achieved through the following: the first cavity 1311 and the second cavity 1321 are connected by the first valve 15; the sixth cavity 1821 and the seventh cavity are connected by the second valve 19; the sixth cavity 1821 and the eighth cavity 1841 are connected by the second valve 19; and the battery 27, the second pump 30, and the second heat exchange channel 172 are connected in series. The fourth heat exchanger 26, the motor 28, and the first pump 29 can be connected in series.

[0054] Heating and dehumidification can also utilize the waste heat of battery 27 and motor 28. At this time, the first cavity 1311 and the second cavity 1321 are connected through the first valve 15, the sixth cavity 1821 and the seventh cavity are throttled and connected through the second valve 19, the sixth cavity 1821 and the eighth cavity 1841 are throttled and connected through the second valve 19, the motor 28, the first pump 29 and the second heat exchange channel 172 are connected in series, and the battery 27, the second pump 30 and the second heat exchange channel 172 are connected in series.

[0055] like Figure 16As shown, the thermal management system has a de-icing mode. When the thermal management system is in de-icing mode, the compressor 10 is in operation. The first chamber 1311 and the second chamber 1321 are connected through the first valve 15, the first chamber 1311 and the third chamber 1331 are connected through the first valve 15, the sixth chamber 1821 and the eighth chamber 1841 are throttled and connected through the second valve 19, and the motor 28, the first pump 29 and the second heat exchange channel 172 are connected in series. The battery 27 and the first pump 29 are connected in series. At this time, the outdoor temperature is low, and the motor 28 generates heat. The working medium in the first heat exchange channel 171 absorbs the heat from the working medium in the second heat exchange channel 172, so as to use the heat generated by the motor 28 to transfer de-icing and provide heat to the passenger cabin.

[0056] like Figure 17 and Figure 18 As shown, as a first alternative embodiment, the thermal management system may use only the following... Figure 3 The connection structure of the first valve 15 and the first branch 13 shown is illustrated below. Other parts are referenced as follows: Figure 2 The structure shown is illustrated. As a second alternative embodiment, the thermal management system can also simply use... Figure 4 The connection structure of the second valve 19 and the second branch 18 shown is illustrated below. Other parts are referenced as follows: Figure 2 The structure shown.

[0057] In this application, at least two of the four chambers—first 1311, second 1321, third 1331, and fourth 1341—can be connected, disconnected, or throttled via a first valve 15. The flow of the working medium between the compressor inlet 101, compressor outlet 102, second heat exchanger 11, and first heat exchanger 12 can be controlled using the first valve 15. This reduces the number of control valves used in the thermal management system, thus simplifying its structure. Furthermore, at least two of the four chambers—fifth 1811, sixth 1821, seventh 1831, and eighth 1841—can be connected, disconnected, or throttled via a second valve 19. This second valve 19 can control the flow of the working medium between the second heat exchanger 11, first heat exchanger 12, third heat exchanger 16, and heat exchanger 17. This again reduces the number of control valves used in the thermal management system, further simplifying its structure.

[0058] The above description is merely a typical embodiment of this application and is not intended to limit this application in any way. Although this application has been disclosed above with typical embodiments, it is not intended to limit this application. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the technical solution of this application. Any simple modifications, equivalent changes and alterations made to the above technical solution based on the technical essence of this application without departing from the content of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A thermal management system, characterized by, The heat management system comprises a compressor, a first heat exchanger, a second heat exchanger, a first branch and a first valve, the compressor comprises a compressor inlet and a compressor outlet, the first branch comprises a first pipe, a second pipe, a third pipe and a fourth pipe, two ends of the first pipe are connected with the first valve and the compressor outlet respectively, two ends of the second pipe are connected with the first valve and the first heat exchanger respectively, two ends of the third pipe are connected with the first valve and the second heat exchanger respectively, two ends of the fourth pipe are connected with the first valve and the compressor inlet respectively; The first pipe has a first pipe cavity, the second pipe has a second pipe cavity, the third pipe has a third pipe cavity, the fourth pipe has a fourth pipe cavity, the first valve has a conducting state, a disconnecting state and a throttling state, at least two of the first pipe cavity, the second pipe cavity, the third pipe cavity and the fourth pipe cavity can be connected in a conducting, disconnecting or throttling manner through the first valve. The heat management system further comprises a third heat exchanger, a heat exchanger, a second branch and a second valve, the heat exchanger comprises a first heat exchange flow channel, the second branch comprises a fifth pipe, a sixth pipe, a seventh pipe and an eighth pipe, the fifth pipe, the sixth pipe, the seventh pipe and the eighth pipe are connected with the second valve, two ends of the second heat exchanger are connected with the third pipe and the fifth pipe respectively, two ends of the first heat exchanger are connected with the second pipe and the sixth pipe respectively, the third heat exchanger is connected with the seventh pipe, the first heat exchange flow channel is connected with the eighth pipe; 2. The thermal management system of claim 1, wherein, The fifth pipe has a fifth pipe cavity, the sixth pipe has a sixth pipe cavity, the seventh pipe has a seventh pipe cavity, the eighth pipe has an eighth pipe cavity, the second valve has a conducting state, a disconnecting state and a throttling state, at least two of the fifth pipe cavity, the sixth pipe cavity, the seventh pipe cavity and the eighth pipe cavity can be connected in a conducting, disconnecting or throttling manner through the second valve. The second branch further comprises a ninth pipe, two ends of the ninth pipe are connected with the fifth pipe and the sixth pipe respectively, the ninth pipe comprises a first branch, a second branch and a first one-way valve, two ends of the first one-way valve are connected with the first branch and the second branch respectively, the first branch is connected with the fifth pipe, the second branch is connected with the sixth pipe, from the first branch to the second branch, the first one-way valve is in a conducting state; 3. The thermal management system of claim 2, wherein, The sixth pipe comprises a third branch, a fourth branch and a second one-way valve, two ends of the second one-way valve are connected with the third branch and the fourth branch respectively, the third branch is connected with the first heat exchanger, the second branch and the second valve are both connected with the fourth branch, from the third branch to the fourth branch, the second one-way valve is in a conducting state; ​ The heat exchanger system further comprises a third branch, the third branch comprising a tenth pipe, an eleventh pipe and a twelfth pipe, two ends of the third heat exchanger are connected with the seventh pipe and the tenth pipe respectively, two ends of the first heat exchange flow channel part are connected with the eighth pipe and the eleventh pipe respectively, the tenth pipe and the eleventh pipe are connected with the twelfth pipe, and the twelfth pipe is connected with the fourth pipe; The tenth pipe comprises a fifth branch, a sixth branch and a third one-way valve, two ends of the third one-way valve are connected with the fifth branch and the sixth branch respectively, the fifth branch is connected with the third heat exchanger, and the sixth branch is connected with the twelfth pipe, and the third one-way valve is in a conducting state from the fifth branch to the sixth branch.

4. The thermal management system of claim 3, wherein, The heat management system has a heating mode, when the heat management system is in the heating mode, the compressor is in a working state, the first lumen and the second lumen are conducted through the first valve piece, and the third lumen and the fourth lumen are conducted through the first valve piece. The sixth lumen and the fifth lumen are in throttling communication through the second valve piece, and / or the sixth lumen and the eighth lumen are in throttling communication through the second valve piece.

5. The thermal management system of claim 3, wherein, The heat management system has a hot gas bypass mode, when the heat management system is in the hot gas bypass mode, the compressor is in a working state, and the first lumen and the fourth lumen are in conducting or throttling communication through the first valve piece.

6. The thermal management system of claim 3, wherein, The heat management system has a refrigeration mode, when the heat management system is in the refrigeration mode, the compressor is in a working state, and the first lumen and the third lumen are conducted through the first valve piece. The sixth lumen and the seventh lumen are in throttling communication through the second valve piece, and / or the sixth lumen and the eighth lumen are in throttling communication through the second valve piece.

7. The thermal management system of claim 3, wherein, The heat management system has a dehumidification mode, when the heat management system is in the dehumidification mode, the compressor is in a working state; The first lumen and the second lumen are conducted through the first valve piece, the third lumen and the fourth lumen are conducted through the first valve piece, the sixth lumen and the fifth lumen are in throttling communication through the second valve piece, and the sixth lumen and the seventh lumen are in throttling communication through the second valve piece; Or, the first lumen and the second lumen are conducted through the first valve piece, the third lumen and the fourth lumen are conducted through the first valve piece, the sixth lumen and the fifth lumen are in throttling communication through the second valve piece, the sixth lumen and the seventh lumen are in throttling communication through the second valve piece, and the sixth lumen and the eighth lumen are in throttling communication through the second valve piece; Or, the first lumen and the second lumen are conducted through the first valve piece, the sixth lumen and the seventh lumen are in throttling communication through the second valve piece, and the sixth lumen and the eighth lumen are in throttling communication through the second valve piece; Or, the first lumen and the second lumen are communicated through the first valve, the first lumen and the third lumen are communicated through the first valve, and the sixth lumen and the seventh lumen are throttled communicated through the second valve.

8. The thermal management system of claim 3, wherein, The thermal management system has a deicing mode, when the thermal management system is in the deicing mode, the compressor is in the working state, the first lumen and the second lumen are communicated through the first valve, the first lumen and the third lumen are communicated through the first valve, and the sixth lumen and the eighth lumen are throttled communicated through the second valve.

9. The thermal management system of any one of claims 3 to 8, wherein, The fourth pipeline comprises a seventh branch, an eighth branch and a gas-liquid separator, two ends of the gas-liquid separator are connected with the seventh branch and the eighth branch respectively, the twelfth pipeline and the first valve are connected with the seventh branch, and the eighth branch is connected with the compressor inlet part. The thermal management system comprises an intermediate heat exchanger, the intermediate heat exchanger comprises a first intermediate heat exchange flow channel part and a second intermediate heat exchange flow channel part, the first intermediate heat exchange flow channel part is arranged in the fourth branch, the fourth branch comprises a first part and a second part, two ends of the first intermediate heat exchange flow channel part are connected with the first part and the second part respectively, the second branch and the second one-way valve are connected with the first part, and the second valve is connected with the second part; the second intermediate heat exchange flow channel part is arranged in the eighth branch, the eighth branch comprises a third part and a fourth part, two ends of the second intermediate heat exchange flow channel part are connected with the third part and the fourth part respectively, the third part is connected with the gas-liquid separator, and the fourth part is connected with the compressor inlet part.

10. A thermal management system characterized by, Comprise: A first heat exchanger, a second heat exchanger, a third heat exchanger, a heat exchanger, a second branch and a second valve, the second branch comprises a fifth pipeline, a sixth pipeline, a seventh pipeline and an eighth pipeline, two ends of the fifth pipeline are connected with the second valve and the second heat exchanger respectively, two ends of the sixth pipeline are connected with the second valve and the first heat exchanger respectively, two ends of the seventh pipeline are connected with the second valve and the third heat exchanger respectively, and two ends of the eighth pipeline are connected with the second valve and the heat exchanger respectively; The fifth pipeline has a fifth lumen, the sixth pipeline has a sixth lumen, the seventh pipeline has a seventh lumen, the eighth pipeline has an eighth lumen, the second valve has a communication state, a disconnection state and a throttling state, and at least two of the fifth lumen, the sixth lumen, the seventh lumen and the eighth lumen can be communicated, disconnected or throttled communicated through the second valve.

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