A thermal management system and a new energy electric vehicle

Abstract

The present application provides a thermal management system and a new energy electric vehicle. The thermal management system includes a battery cooler having a first channel and a second channel, a heat exchanger having a third channel and a fourth channel, and a water-cooled condenser having a fifth channel and a sixth channel; it also includes a refrigerant circuit of the second channel and the fifth channel, a heating water circuit including the sixth channel and the third channel, a battery circuit including the third channel, and an electric drive circuit; it further includes a ten-way valve connecting the electric drive circuit, the heating water circuit, the battery circuit, and the electric drive circuit; when the ten-way valve is in the first state, the waste heat of the electric drive circuit flows through the ten-way valve to heat the first channel, the first channel heats the refrigerant in the second channel, the heated refrigerant flows through the fifth channel of the same refrigerant circuit to heat, and the fifth channel heats the battery circuit including the sixth channel. Therefore, the present application uses the electric drive circuit to supply heat to the battery circuit, reducing energy consumption and improving the utilization rate of heat.

Description

Technical Field

[0001] This application relates to the technical field of new energy vehicles, and particularly to a thermal management system and a new energy electric vehicle. Background Art

[0002] In recent years, with the governance of air pollution and the limitation of national fuel consumption targets, new energy electric vehicles have received increasing attention from the market and enterprises. Most of the existing new energy electric vehicles use multiple PTC (Positive Temperature Coefficient) heaters to heat the battery, resulting in high energy consumption. Summary of the Invention

[0003] In view of the above defects or deficiencies in the prior art, this application aims to provide a thermal management system and a new energy electric vehicle.

[0004] In a first aspect, this application provides a thermal management system, including:

[0005] A battery cooler, the battery cooler includes a first channel having a first input end and a first output end, and a second channel having a second input end and a second output end;

[0006] A heat exchanger, the heat exchanger includes a third channel having a third input end and a third output end, and a fourth channel having a fourth input end and a fourth output end;

[0007] A water-cooled condenser, the water-cooled condenser includes a fifth channel having a fifth input end and a fifth output end, and a sixth channel having a sixth input end and a sixth output end;

[0008] A refrigerant circuit, the refrigerant circuit includes the second channel and the fifth channel;

[0009] A heating water circuit, the heating water circuit includes the sixth channel and the fourth channel;

[0010] A battery circuit, the battery circuit includes the third channel and a seventh input end;

[0011] An electric drive circuit, the electric drive circuit includes an eighth input end and a seventh output end;

[0012] A ten-way valve, the ten-way valve connects the heating water circuit, the battery circuit, and the electric drive circuit, and has a fourth end connected to the first output end, a fifth end connected to the seventh input end, a sixth end connected to the seventh output end, a seventh end connected to the third output end, an eighth end connected to the first input end, a tenth end connected to the eighth input end, a first end connected to the sixth output end, and a third end connected to the fourth input end;

[0013] The ten-way valve has a first state. When in the first state, the waste heat of the electric drive circuit is used to heat the battery circuit. At this time, the seventh end is communicated with the fifth end, the fourth end is communicated with the tenth end, the eighth end is communicated with the sixth end, and the first end is communicated with the third end.

[0014] According to the technical solution provided by the embodiment of the present application, the refrigerant circuit further includes: a compressor, one end of the compressor is communicated with the fifth input end, and the other end is communicated with the second output end.

[0015] According to the technical solution provided by the embodiment of the present application, the refrigerant circuit further includes an air-cooled condenser connected in parallel with the fifth channel. One end of the air-cooled condenser is communicated with the compressor, and the end far from the compressor is the eighth output end, and the eighth output end is communicated with the second input end.

[0016] According to the technical solution provided by the embodiment of the present application, it further includes an air-conditioning component connected in parallel with the second channel. The air-conditioning component includes a seventh channel having a ninth input end and a ninth output end, and an eighth channel having a tenth input end and a tenth output end; the ninth input end is communicated with the second input end, and the ninth output end is communicated with the second output end; the refrigerant circuit further includes the seventh channel.

[0017] According to the technical solution provided by the embodiment of the present application, the heating water circuit further includes:

[0018] A first water pump, one end of the first water pump is communicated with the sixth input end;

[0019] A second water storage bottle, one end of the second water storage bottle is communicated with the first water pump far from the sixth input end, and the other end is communicated with the fourth output end.

[0020] According to the technical solution provided by the embodiment of the present application, the ten-way valve further includes a second end, the second end is communicated with the tenth input end, and the tenth output end is communicated with the second water storage bottle.

[0021] According to the technical solution provided by the embodiment of the present application, the battery circuit further includes:

[0022] A battery, one end of the battery is communicated with the third input end;

[0023] A second water pump, one end of the second water pump is communicated with the battery far from the third input end, and the other end is the seventh input end.

[0024] According to the technical solution provided by the embodiment of the present application, the electric drive circuit further includes:

[0025] An electric drive system, one end of which is the seventh output end;

[0026] A third water pump, one end of which is connected to the electric drive system away from the seventh output end;

[0027] A first water storage bottle, one end of which is connected to the side of the third water pump away from the electric drive system, and the other end is the eighth input end.

[0028] According to the technical solution provided by the embodiment of the present application, the ten-way valve further includes a ninth end; the electric drive circuit further includes a radiator connected to the ninth end, and the side of the radiator away from the ninth end is connected to the first water storage bottle.

[0029] In a second aspect, the present application also proposes a new energy electric vehicle, including the thermal management system proposed in the first aspect.

[0030] To sum up, the present application proposes a thermal management system, including a battery cooler with a first channel and a second channel, a heat exchanger with a third channel and a fourth channel, and a water-cooled condenser with a fifth channel and a sixth channel; it also includes a refrigerant circuit for the second channel and the fifth channel, a heating water circuit including the sixth channel and the third channel, a battery circuit including the third channel, and an electric drive circuit; it also includes a ten-way valve connecting the electric drive circuit, the heating water circuit, the battery circuit, and the electric drive circuit; when the ten-way valve is in the first state, the waste heat of the electric drive circuit flows through the ten-way valve to heat the first channel, the first channel heats the refrigerant in the second channel, the heated refrigerant flows through the fifth channel of the same refrigerant circuit to be heated, and the fifth channel heats the battery circuit including the sixth channel. Therefore, compared with using multiple PTC heaters to heat the battery in the prior art, the present application uses the electric drive circuit to supply heat to the battery circuit, reducing energy consumption and improving the utilization rate of heat. Description of the Drawings

[0031] Figure 1 Structural schematic diagrams of modes 1-3 provided in Embodiment 1 of the present application;

[0032] Figure 2 General structural schematic diagram of a thermal management system provided in an embodiment of the present application;

[0033] Figure 3 Structural schematic diagrams of modes 4-6 provided in Embodiment 2 of the present application;

[0034] Figure 4 Structural schematic diagrams of modes 7-9 provided in Embodiment 3 of the present application;

[0035] Figure 5 Structural schematic diagrams of modes 10-11 provided in Embodiment 4 of the present application;

[0036] Figure 6 Schematic diagram of Modes 12 - 14 provided for Embodiment 5 of this application;

[0037] Figure 7 Schematic diagram of Mode 15 provided for Embodiment 6 of this application;

[0038] Figure 8 Schematic diagram of Mode 16 provided for Embodiment 7 of this application;

[0039] Figure 9 Schematic diagram of Mode 17 provided for Embodiment 7 of this application;

[0040] Figure 10 Schematic diagram of Mode 18 provided for Embodiment 7 of this application.

[0041] The text markings in the figure are represented as:

[0042] 100, battery cooler; 101, first channel, 102, second channel; 110, ten - way valve;

[0043] 200, heat exchanger; 201, third channel; 202, fourth channel;

[0044] 300, water - cooled condenser; 301, fifth channel; 302, sixth channel;

[0045] 400, air - conditioning component; 401, seventh channel; 402, eighth channel;

[0046] 501, first input end; 502, second input end; 503, third input end; 504, fourth input end; 505, fifth input end; 506, sixth input end; 507, seventh input end; 508, eighth input end; 509, ninth input end; 510, tenth input end;

[0047] 601, first output end; 602, second output end; 603, third output end; 604, fourth output end; 605, fifth output end; 606, sixth output end; 607, seventh output end; 608, eighth output end; 609, ninth output end; 610, tenth output end;

[0048] 701, compressor; 702, liquid storage tank; 703, air - cooled condenser; 704, first switch component; 705, second switch component; 706, third switch component; 707, fourth switch component;

[0049] 801, first water pump; 802, second water storage bottle; 803, heating component;

[0050] 901. Battery; 902. Second water pump; 903. Electric drive system; 904. Third water pump; 905. First water storage bottle; 906. Radiator. Detailed implementation mode

[0051] The present application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention, rather than limiting the invention. Additionally, it should be noted that for the sake of description, only the parts related to the invention are shown in the drawings.

[0052] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the drawings and embodiments.

[0053] Embodiment 1

[0054] As mentioned in the background art, in view of the problems in the prior art, the present application proposes a thermal management system, including:

[0055] Battery cooler 100, the battery cooler 100 includes a first channel 101 having a first input end 501 and a first output end 601, and a second channel 102 having a second input end 502 and a second output end 602;

[0056] Heat exchanger 200, the heat exchanger 200 includes a third channel 201 having a third input end 503 and a third output end 603, and a fourth channel 202 having a fourth input end 504 and a fourth output end 604;

[0057] Water-cooled condenser 300, the water-cooled condenser 300 includes a fifth channel 301 having a fifth input end 505 and a fifth output end 605, and a sixth channel 302 having a sixth input end 506 and a sixth output end 606;

[0058] Refrigerant circuit, the refrigerant circuit includes the second channel 102 and the fifth channel 301;

[0059] Heating water circuit, the heating water circuit includes the sixth channel 302 and the fourth channel 202;

[0060] Battery circuit, the battery circuit includes the third channel 201 and a seventh input end 507;

[0061] Electric drive circuit, the electric drive circuit includes an eighth input end 508 and a seventh output end 607;

[0062] Ten-way valve 110, which connects the heated water circuit, the battery circuit, and the electric drive circuit, has a fourth end connected to the first output end 601, a fifth end connected to the seventh input end 507, a sixth end connected to the seventh output end 607, a seventh end connected to the third output end 603, an eighth end connected to the first input end 501, a tenth end connected to the eighth input end 508, a first end connected to the sixth output end 606, and a third end connected to the fourth input end 504;

[0063] The ten-way valve 110 has a first state. When in the first state, it uses the waste heat of the electric drive circuit to heat the battery circuit. At this time, the seventh end is connected to the fifth end, the fourth end is connected to the tenth end, the eighth end is connected to the sixth end, and the first end is connected to the third end.

[0064] The heat management system and its working modes will be introduced in detail below with reference to the respective drawings. Unless otherwise specified, the direction of each arrow in the figure represents the flow direction of the refrigerant or the coolant. For example, the arrows in the refrigerant circuit represent the flow direction of the refrigerant; the arrows in the battery circuit, the electric drive circuit, and the heated water circuit represent the flow direction of the coolant, etc.

[0065] Please refer to Figure 1 , optionally, the heat exchanger 200 is a plate heat exchanger; when the ten-way valve 110 is in the first state, the waste heat of the electric drive circuit flows through the ten-way valve 110. Since the ten-way valve 110 is in the first state, the heat flows from the seventh output end 607 through the sixth end to the eighth end, and then flows to the first channel 101 of the battery cooler 100 to heat the first channel 101; at the same time, it flows from the first channel 101 through the fourth end to the tenth end, and then flows to the eighth input end 508 and the seventh output end 607 to form a cycle of the electric drive circuit; after the first channel 101 is heated, it heats the refrigerant in the second channel 102 of the same battery cooler 100. After the refrigerant is heated, it flows through the fifth channel 301 of the water-cooled condenser 300 to heat the sixth channel 302 of the same water-cooled condenser 300. One end of the sixth channel 302 is connected to the fourth output end 604, and the other end is connected to the fourth input end 504, so it heats the fourth channel 202. The fourth channel 202 heats the third channel 201 of the same heat exchanger 200. Since the battery circuit includes the third channel 201, the battery circuit can be heated.

[0066] In summary, the present application integrates multiple circuits by using the ten-way valve 110, and by reasonably configuring the relationships between the circuits, it realizes heating the battery circuit with the electric drive circuit, reduces energy consumption, and improves the utilization rate of heat. In certain specific scenarios, this function can also be achieved by using a split three-way valve plus a seven-way valve, or a three-way valve plus two four-way valves, which will not be elaborated here.

[0067] In a preferred embodiment, the refrigerant circuit further includes: a compressor 701, one end of the compressor 701 is communicated with the fifth input end 505, and the other end is communicated with the second output end 602.

[0068] Please refer to Figure 1 as shown. Among them, the refrigerant circuit further includes a liquid storage tank 702. The liquid storage tank 702 is arranged between the water-cooled condenser 300 and the battery cooler 100. One end is communicated with the fifth output end 605, and the other end is communicated with the second input end 502. The liquid storage tank 702 is used to store the refrigerant that fails to vaporize. The refrigerant circuit further includes a filling port for filling the refrigerant. Filling the refrigerant is a prior art and will not be elaborated here. After passing through the compressor 701, the refrigerant forms a high-temperature refrigerant. After passing through the fifth channel 301 of the water-cooled condenser 300, it flows through the liquid storage tank 702 and enters the second channel 102, and then flows into the compressor 701 from the second output end 602 to form the refrigerant circuit.

[0069] Please refer to Figure 2 as shown. In a preferred embodiment, the refrigerant circuit further includes an air-cooled condenser 703 connected in parallel with the fifth channel 301. One end of the air-cooled condenser 703 is connected to the compressor 701, and the end far from the compressor 701 is the eighth output end 608. The eighth output end 608 is communicated with the second input end 502.

[0070] Please refer to Figure 1As shown in the figure, the end of the air-cooled condenser 703 away from the compressor 701 is communicated with the liquid storage tank 702; a first switch assembly 704 is provided between the compressor 701 and the air-cooled condenser 703, and a second switch assembly 705 is provided between the compressor 701 and the water-cooled condenser 300. Optionally, the first switch assembly 704 and the second switch assembly 705 are solenoid valves; when the first switch assembly 704 is opened and the second switch assembly 705 is closed, the refrigerant flows from the compressor 701 through the air-cooled condenser 703, and then flows into the liquid storage tank 702, the battery cooler 100, and the compressor 701 to form a cycle; when the first switch assembly 704 is closed and the second switch assembly 705 is opened, the refrigerant flows from the compressor 701 through the water-cooled condenser 300, and then flows into the liquid storage tank 702, the battery cooler 100, and the compressor 701 to form a cycle.

[0071] In a preferred embodiment, the thermal management system further includes an air-conditioning assembly 400 connected in parallel with the second channel 102. The air-conditioning assembly 400 includes a seventh channel 401 having a ninth input end 509 and a ninth output end 609, and an eighth channel 402 having a tenth input end 510 and a tenth output end 610; the ninth input end 509 is communicated with the second input end 502, and the ninth output end 609 is communicated with the second output end 602; the refrigerant circuit further includes the seventh channel 401.

[0072] Please refer to Figure 2 As shown in the figure, the refrigerant flows into the air-conditioning assembly 400 and the battery cooler 100 after passing through the liquid storage tank 702. A third switch assembly 706 is provided between the liquid storage tank 702 and the air-conditioning assembly 400, and a fourth switch assembly 707 is provided between the liquid storage tank 702 and the battery cooler 100; optionally, the third switch assembly 706 and the fourth switch assembly 707 are electronic expansion valves; the air-conditioning assembly 400 is arranged in the passenger compartment to heat or cool the passenger compartment; when the third switch assembly 706 is opened and the fourth switch assembly 707 is closed, the refrigerant flows from the liquid storage tank 702 into the air-conditioning assembly 400; when the third switch assembly 706 is closed and the fourth switch assembly 707 is opened, the refrigerant flows from the liquid storage tank 702 into the battery cooler 100.

[0073] In a preferred embodiment, the heating water circuit further includes:

[0074] A first water pump 801, one end of the first water pump 801 is communicated with the sixth input end 506;

[0075] The second water storage bottle 802, one end of the second water storage bottle 802 is communicated with the first water pump 801 far away from the sixth input end 506, and the other end is communicated with the fourth output end 604.

[0076] Please refer to Figure 1 as shown, wherein, the coolant is filled by the second water storage bottle 802, the coolant is transmitted by the first water pump 801 to the sixth channel 302 of the water-cooled condenser 300, then flows into the ten-way valve 110, flows out from the ten-way valve 110 to the fourth channel 202 of the heat exchanger 200, and then flows into the second water storage bottle 802 to form a cycle.

[0077] In addition, as Figure 1 shown, the sixth channel 302 is also communicated with a heating component 803. Optionally, the heating component 803 is a PTC. The heating component 803 has a circulation channel inside. After the heating component 803 is turned on, the coolant in the heating water circuit is not heated by the refrigerant circuit, but is heated by the heating component 803. When the heating component 803 is not turned on, the coolant flows through the circulation channel of the heating component 803 and is heated by the refrigerant circuit.

[0078] In a preferred embodiment, the ten-way valve 110 further includes a second end, the second end is communicated with the tenth input end 510, and the tenth output end 510 is communicated with the second water storage bottle 802.

[0079] Please refer to Figure 1 and Figure 2 as shown, when the first end and the second end are connected, the heated coolant in the heating water circuit can flow from the first end to the second end, then flow into the air-conditioning component 400, and flow from the air-conditioning component 400 to the second water storage bottle 802 to form a cycle.

[0080] In a preferred embodiment, the battery circuit further includes:

[0081] A battery 901, one end of the battery 901 is communicated with the third input end 503;

[0082] A second water pump 902, one end of the second water pump 902 is communicated with the battery 901 far away from the third input end 503, and the other end is the seventh input end 507.

[0083] Please refer to Figure 1 and Figure 2 as shown, the coolant in the battery circuit is transmitted by the second water pump 902 to the battery 901. When the ten-way valve 110 is in the first state, it then flows through the third channel 201, to the seventh end, the fifth end, and then flows into the second water pump 902 to form a cycle.

[0084] In a preferred embodiment, the electric drive loop further includes:

[0085] An electric drive system 903, one end of the electric drive system 903 being the seventh output end 607;

[0086] A third water pump 904, one end of the third water pump 904 being connected to the electric drive system 903 away from the seventh output end 607;

[0087] A first water storage bottle 905, one end of the first water storage bottle 905 being connected to the side of the third water pump 904 away from the electric drive system 903, and the other end being the eighth input end 508.

[0088] Please refer to Figure 2 As shown, when coolant is filled in the first water storage bottle 905, and when the seventh end and the eighth end of the ten-way valve 110 are connected, the fifth end and the sixth end are connected, and the fourth end and the tenth end are connected, so that when the electric drive loop and the battery loop are connected in series, the coolant fills the electric drive loop and the battery loop, that is, the two loops share a filling port; when the ten-way valve 110 is in the first state, the coolant in the electric drive loop is transmitted by the third water pump 904 to the sixth end, then flows through the eighth end, the first channel 101, then into the fourth end, the tenth end, and flows back to the first water storage bottle 905 to complete the cycle.

[0089] In a preferred embodiment, the ten-way valve 110 further includes a ninth end; the electric drive loop further includes a radiator 906 connected to the ninth end, and the side of the radiator 906 away from the ninth end is connected to the first water storage bottle 905.

[0090] Please refer to Figure 2 As shown, when the sixth end and the ninth end of the ten-way valve 110 are connected, the radiator 906, the first water storage bottle 905, the third water pump 904, the electric drive system 903, the sixth end, and the ninth end form a loop, and the radiator 906 is connected in series into the electric drive loop.

[0091] In summary, please refer to Figure 1 and Figure 2 As shown, in this embodiment, the second switch assembly 705 is turned on, the first switch assembly 704 is turned off, the third switch assembly 706 is turned off, and the fourth switch assembly 707 is turned on; this embodiment includes three working modes:

[0092] Mode 1: The first end and the third end are connected, the first end and the second end are not connected, and the waste heat of the electric drive system 903 heats the battery 901; wherein, asFigure 1 As shown, since the ten-way valve 110 is in the first state, the sixth end and the eighth end are connected, so the waste heat of the electric drive system 903 can flow through the sixth end through the eighth end and then into the first channel 101; the second channel 102 belonging to the battery cooler 100 is heated through the first channel 101, and the second channel 102 is connected to the fifth channel 301 of the water-cooled condenser 300, so the fifth channel 301 can be heated, and the fifth channel 301 can further heat the second channel 102 belonging to the battery cooler 100. The sixth channel 302 of the water-cooled condenser 300 is heated, and the first end is connected to the third end, and the sixth channel 302 is communicated with the first end, so the waste heat of the electric drive system 903 can flow into the third end, and then flow into the fourth channel 202 of the heat exchanger 200, and then heat the third channel 201 belonging to the heat exchanger 200, and the third channel 201 is communicated with the battery 901, so the waste heat of the electric drive system 903 can heat the battery 901 and provide heat for the battery 901;

[0093] Mode 2: The first end and the second end are connected, and the first end and the third end are not connected, and the waste heat of the electric drive system 903 is used to heat the passenger compartment; where, similar to Mode 1, the waste heat of the electric drive system 903 can enter the first end through the electric drive circuit, and the first end is connected to the second end, so the waste heat of the electric drive system 903 can enter the second end, and the second end is connected to the eighth channel 402 of the air conditioning component 400, and the air conditioning component 400 is arranged in the passenger compartment, so the waste heat of the electric drive system 903 can heat the passenger compartment through the air conditioning component 400;

[0094] Mode 3: the first end is connected to the second end and the third end in proportion, and the waste heat of the electric drive system 903 heats the passenger compartment and the battery 901 at the same time.

[0095] Example 2

[0096] Please refer to Figure 3 As shown, the same points as the embodiment are not repeated here, except that the heating water circuit does not work, and the battery 901 or the passenger compartment is cooled through the refrigerant circuit; the ten-way valve 110 is in the second state, at this time, the fourth end is connected to the seventh end, the eighth end is connected to the fifth end, the sixth end is connected to the ninth end; the tenth end is short-circuited.

[0097] This embodiment includes the following modes:

[0098] Mode 4: Battery refrigeration and electric drive refrigeration mode; the third switch assembly 706 is closed and the fourth switch assembly 707 is opened; the refrigerant passes through the compressor 701 to the air-cooled condenser 703, flows through the liquid storage tank 702 to the battery cooler 100, then flows through the eighth end and the fifth end, and then flows into the battery 901, the third channel 201, the seventh end, the fourth end, and then flows back to the first channel 101 to refrigerate the battery 901; the coolant in the electric drive circuit exchanges heat through the radiator 906 to refrigerate the electric drive system 903;

[0099] Mode 5: Occupant compartment and electric drive refrigeration mode; the third switch assembly 706 is opened and the fourth switch assembly 707 is closed; the refrigerant passes through the compressor 701 to the air-cooled condenser 703, flows through the liquid storage tank 702 to the seventh channel 401 of the air-conditioning assembly 400, and flows back to the compressor 701 from the tenth output end 610 to form a cycle. Since the air-conditioning assembly 400 is arranged in the occupant compartment, the refrigeration of the occupant compartment is realized;

[0100] Mode 6: Simultaneous refrigeration of the occupant compartment, battery, and electric drive; the third switch assembly 706 and the fourth switch assembly 707 are opened simultaneously, and the refrigerant flows through the air-conditioning assembly 400 and the battery cooler 100 to refrigerate the occupant compartment and the battery 901 simultaneously; the electric drive system 903 is refrigerated through the radiator 906.

[0101] Embodiment 3

[0102] Please refer to Figure 4 As shown, this embodiment is the same as Embodiment 1 in the heating process. In this embodiment, the ten-way valve 110 is in the third state, and the connection manners of the refrigerant circuit and the battery circuit to the ten-way valve 110 remain unchanged. The difference is that the fourth end is connected to the ninth end, the eighth end is connected to the sixth end, and the tenth end is short-circuited; the radiator 906 is connected in series to the electric drive circuit; and, the second switch assembly 705 is opened and the fourth switch assembly 707 is opened; the refrigerant is cooled and releases heat by the water-cooled condenser 300, flows through the liquid storage tank 702, absorbs heat at the battery cooler 100, and then returns to the compressor 701 after absorbing heat; the fifth channel 301 heats the coolant in the sixth channel 302 of the same water-cooled condenser 300, and the heated coolant flows through the fourth channel 202 of the heat exchanger 200 to provide heat for the third channel 201 of the same heat exchanger 200, realizing the heating of the battery 901 communicated with the third channel 201.

[0103] This embodiment includes the following modes:

[0104] Mode 7: Heating the battery 901 with external air; the first end of the ten-way valve 110 is in communication with the third end and not in communication with the second end; the electric drive circuit exchanges heat with the external air through the radiator 906, and the absorbed heat is transmitted to the battery cooler 100. The battery cooler 100 heats the heated water circuit, and the heated coolant flows from the first end to the third end, thereby heating the battery 901;

[0105] Mode 8: Heating the passenger compartment with external air; the first end of the ten-way valve 110 is not in communication with the third, and the first end of the ten-way valve 110 is in communication with the second end; the same as Mode 7, heat is exchanged with the external air through the radiator 906. After the absorbed heat reaches the first end, since the first end and the second end are in communication, the absorbed heat can enter the air-conditioning assembly 400, and the air-conditioning assembly 400 provides heating for the passenger compartment;

[0106] Mode 9: Heating the battery 901 and the passenger compartment simultaneously with external air; that is, the first end is in communication with the second end and the third end in proportion.

[0107] Embodiment 4

[0108] The working condition of this embodiment is that when the temperatures of the battery 901 and the electric drive system 903 are both relatively high, the waste heat is used to heat the passenger compartment; please refer to Figure 5 As shown, the electric drive circuit and the battery circuit are connected in series. The ten-way valve 110 is in the fourth state, the fourth end is connected to the tenth end, the eighth end is connected to the seventh end, and the sixth end is connected to the fifth end; the second water pump 902 and the third water pump 904 are turned on, and the coolant is filled from the first water storage bottle 905, transmitted to the electric drive system 903 by the third water pump 904, and flows from the electric drive system 903 to the sixth end, the fifth end, the second water pump 902, the battery 901, the third channel 201, the seventh end, the eighth end, the first channel 101, the fourth end, the tenth end, and the first water storage bottle 905 to form a cycle; therefore, the waste heat in the electric drive circuit and the battery circuit all flows to the first channel 101 of the battery cooler 100 to heat the coolant in the heated water circuit; the heated coolant flows into the first end of the ten-way valve 110.

[0109] This embodiment includes a mode:

[0110] Mode 10: The electric drive circuit and the battery circuit supply heat to the passenger compartment; the first end of the ten-way valve 110 is communicated with the second end and not communicated with the third end. The heated coolant flows into the first end and flows from the second end to the air-conditioning assembly 400, thereby supplying heat to the passenger compartment.

[0111] Please refer to Figure 5 As shown, regardless of the states of the refrigerant circuit and the heating water circuit, when the ten-way valve 110 is in the fourth state, that is, when the battery circuit and the electric drive circuit are in series and the radiator 906 is short-circuited, the following modes are further included:

[0112] Mode 11: When the efficiency of the electric drive system 903 is low, such as when the motor is blocked, the motor generates heat, and the heat of the electric drive circuit is transmitted to the battery circuit connected in series therewith through the ten-way valve 110, and then the battery 901 is heated.

[0113] Embodiment 5

[0114] Please refer to Figure 6 As shown, in extremely cold weather, the waste heat of the electric drive circuit is not sufficient to heat the battery 901 or supply heat to the passenger compartment, then the heating assembly 803 is turned on, the coolant is filled from the second water storage bottle 802, the coolant flows through the sixth channel 302 of the water-cooled condenser 300, enters the heating assembly 803 for heating, and then flows into the first end of the ten-way valve 110; the seventh end and the fifth end of the ten-way valve 110 are connected.

[0115] This embodiment has the following modes:

[0116] Mode 12: When the first end is communicated with the second end and not communicated with the third end, the heating assembly 803 supplies heat to the eighth channel 402 of the air-conditioning assembly 400, thereby supplying heat to the passenger compartment;

[0117] Mode 13: When the first end is not communicated with the second end and is communicated with the third end, the battery 901 is heated by the heating assembly 803;

[0118] Mode 14: When the first end is communicated with the second end and the third end in proportion, the heating assembly 803 supplies heat to both the passenger compartment and the battery 901 at the same time.

[0119] Embodiment 6

[0120] Please refer to Figure 7As shown in the figure, this embodiment is the 15th working mode, which is a mode for filling the coolant into the heating water circuit, the battery circuit and the electric drive circuit. In this mode, the first end is connected to both the second end and the third end, the fourth end is connected to the ninth end, the fifth end is connected to the sixth end, the seventh end is connected to the eighth end, the tenth end is connected to the first water storage bottle 905, and the electric drive circuit and the battery circuit are connected in series. The coolant is filled from the first water storage bottle 905 and flows through the third water pump 904, the electric drive system 903, the sixth end, the fifth end, the second water pump 902, the battery 901, the third channel 201 of the heat exchanger 200, the seventh end, the eighth end, the first channel 101 of the battery cooler 100, the fourth end, the ninth end, the radiator 906, and the first water storage bottle 905 in sequence to form a cycle, and the coolant fills the electric drive circuit.

[0121] The coolant is filled from the second water storage bottle 803, the first water pump 801 is turned on, and the coolant flows through the first water pump 801, the sixth channel 302 of the water-cooled condenser 300, the flow channel of the heating component 803, the first end, the second end, the eighth channel 402 of the air-conditioning component 400, the second water storage bottle 803, and the first water pump 801 in sequence to form a cycle; the coolant flows from the first end to the third end, the fourth channel 202 of the heat exchanger 200, the second water storage bottle 802, and the first water pump 801 to form a cycle, and the coolant fills the heating water circuit.

[0122] In addition, in summer, the refrigeration mode of Embodiment 2 is adopted; in spring and autumn, the working mode of this embodiment can be adopted. Without using the compressor 701, the radiator 906 is connected in series with the battery circuit and the electric drive circuit, and heat exchange is performed with the outside air through the radiator 906 to complete the refrigeration of the battery 901, improving the energy efficiency of the system.

[0123] Embodiment 7

[0124] The function of this embodiment is to defrost the radiator. When the radiator absorbs heat through heat exchange, frost will form on the surface of the radiator. If not removed, it will cause the radiator to fail. This embodiment includes three working modes:

[0125] Mode 16: Please refer to Figure 8As shown, the radiator 906 is defrosted through the refrigerant circuit; the electric drive circuit and the battery circuit are in parallel, similar to Embodiment 2, the difference being that only the fourth switch assembly 707 is turned on and the third switch assembly 706 is turned off; under normal circumstances, the air-cooled condenser 703 and the radiator 906 itself have fans. When the refrigerant forms high-temperature refrigerant after passing through the compressor 701, the high-temperature refrigerant is dissipated by the fan of the air-cooled condenser 703; and the scenario of the current working mode is that the fans of the air-cooled condenser 703 and the radiator 906 do not work; when the heat of the high-temperature refrigerant in the air-cooled condenser 703 cannot be dissipated, the heat flows from the battery cooler 100 into the electric drive circuit to defrost the radiator 906.

[0126] Mode 17: Please refer to Figure 9 The radiator 906 is defrosted by turning on the heating assembly 803; at this time, the electric drive circuit and the battery circuit are in series. When the heating assembly 803 is turned on, the coolant in the heating water circuit is heated. The heated coolant passes through the fourth channel 202 of the heat exchanger 200 to heat the coolant in the third channel 201 of the same heat exchanger 200. The third channel 201 is connected in series to the battery circuit, and the battery circuit and the electric drive circuit are in series. Therefore, the heated coolant can flow through the radiator 906 to defrost the radiator 906.

[0127] Mode 18: Please refer to Figure 10 : It has the same function as Figure 8 and Figure 9 It is a defrosting mode for the radiator 906, the difference being that by connecting the radiator 906 and the electric drive system in series, the radiator 906 is defrosted in the scenario of the electric drive system dissipating heat.

[0128] In summary, by changing the connection relationship of each port of the ten-way valve 110, flexible switching of multiple working modes is achieved. Compared with a system controlled by multiple valves, the integration degree is higher and the flexibility is stronger.

[0129] Embodiment 8

[0130] The present application also provides a new energy electric vehicle, including the above-mentioned thermal management system; the new energy electric vehicle has the following advantages: it can make full use of the heat of the external air, the electric drive system, and the battery, with high energy utilization rate; in extremely cold conditions, PTC is used for heating and battery heating, with a wide range of use areas and complete functions; the air condenser is used to cool the refrigerant, compared with the current industry method of connecting a water-cooled condenser to a radiator, it has low energy consumption and low noise; the ten-way valve 110 is used to realize the series-parallel connection of the electric drive, the battery, the battery cooler, and the radiator, and the heat distribution of the heating component to the heat exchanger and the air-conditioning component, with high system integration, reduced valve components, and simple pipeline layout.

[0131] In this article, specific examples are used to elaborate on the principle and implementation mode of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application. The above is only the preferred implementation mode of the present application. It should be noted that due to the limited nature of written expression, and objectively there are infinite specific structures. For those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements, modifications or changes can also be made, or the above technical features can be combined in an appropriate manner; these improvements, modifications, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, should all be regarded as the protection scope of the present application.

Claims

1. A thermal management system, characterized in that, Comprising: A battery cooler (100), the battery cooler (100) comprising a first channel (101) having a first input end (501) and a first output end (601), and a second channel (102) having a second input end (502) and a second output end (602); A heat exchanger (200), the heat exchanger (200) comprising a third channel (201) having a third input end (503) and a third output end (603), and a fourth channel (202) having a fourth input end (504) and a fourth output end (604); A water-cooled condenser (300), the water-cooled condenser (300) comprising a fifth channel (301) having a fifth input end (505) and a fifth output end (605), and a sixth channel (302) having a sixth input end (506) and a sixth output end (606); A refrigerant circuit, the refrigerant circuit comprising the second channel (102) and the fifth channel (301); A heating water circuit, the heating water circuit comprising the sixth channel (302) and the fourth channel (202); A battery circuit, the battery circuit comprising the third channel (201) and a seventh input end (507); An electric drive circuit, the electric drive circuit comprising an eighth input end (508) and a seventh output end (607); A ten-way valve (110), the ten-way valve (110) connecting the heating water circuit, the battery circuit, and the electric drive circuit, having a fourth end communicating with the first output end (601), a fifth end communicating with the seventh input end (507), a sixth end communicating with the seventh output end (607), a seventh end communicating with the third output end (603), an eighth end communicating with the first input end (501), a tenth end communicating with the eighth input end (508), a first end communicating with the sixth output end (606), and a third end communicating with the fourth input end (504); The ten-way valve (110) has a first state. When in the first state, the waste heat of the electric drive circuit is used to heat the battery circuit. At this time, the seventh end and the fifth end are connected, the fourth end is connected to the tenth end, the eighth end is connected to the sixth end, and the first end and the third end are connected.

2. The thermal management system according to claim 1, wherein The refrigerant circuit further comprises: a compressor (701), one end of the compressor (701) communicating with the fifth input end (505), and the other end communicating with the second output end (602).

3. The thermal management system according to claim 2, wherein: The refrigerant circuit further comprises an air-cooled condenser (703) connected in parallel with the fifth channel (301). One end of the air-cooled condenser (703) communicates with the compressor (701), and the end far from the compressor (701) is an eighth output end (608), and the eighth output end (608) communicates with the second input end (502).

4. The thermal management system according to claim 3, wherein: It further includes an air-conditioning assembly (400) connected in parallel with the second channel (102). The air-conditioning assembly (400) includes a seventh channel (401) having a ninth input end (509) and a ninth output end (609), and an eighth channel (402) having a tenth input end (510) and a tenth output end (610); the ninth input end (509) communicates with the second input end (502), and the ninth output end (609) communicates with the second output end (602); the refrigerant circuit further includes the seventh channel (401).

5. The thermal management system according to claim 4, wherein The heating water circuit further includes: a first water pump (801), one end of the first water pump (801) communicates with the sixth input end (506); a second water storage bottle (802), one end of the second water storage bottle (802) communicates with the first water pump (801) away from the sixth input end (506), and the other end communicates with the fourth output end (604).

6. The thermal management system according to claim 5, wherein: The ten-way valve (110) further includes a second end, the second end communicates with the tenth input end (510), and the tenth output end (610) communicates with the second water storage bottle (802).

7. The thermal management system according to claim 6, characterized in that The battery circuit further includes: a battery (901), one end of the battery (901) communicates with the third input end (503); a second water pump (902), one end of the second water pump (902) communicates with the battery (901) away from the third input end (503), and the other end is the seventh input end (507).

8. The thermal management system according to claim 7, wherein: The electric drive circuit further includes: an electric drive system (903), one end of the electric drive system (903) is the seventh output end (607); a third water pump (904), one end of the third water pump (904) communicates with the electric drive system (903) away from the seventh output end (607); a first water storage bottle (905), one end of the first water storage bottle (905) communicates with the third water pump (904) away from the electric drive system (903) side, and the other end is the eighth input end (508).

9. The thermal management system according to claim 8, wherein: The ten-way valve (110) further includes a ninth end; the electric drive circuit further includes a radiator (906) communicating with the ninth end, and the side of the radiator (906) away from the ninth end communicates with the first water storage bottle (905).

10. A new energy electric vehicle, characterized in that, including the thermal management system according to any one of claims 1-9.

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