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EP-4741189-A1 - THERMAL MANAGEMENT SYSTEM AND VEHICLE

EP4741189A1EP 4741189 A1EP4741189 A1EP 4741189A1EP-4741189-A1

Abstract

A thermal management system (10) and a vehicle. The thermal management system comprises a refrigerant circuit (11). The refrigerant circuit comprises a refrigeration circuit (62). The refrigeration circuit comprises a compressor (12), a first water-cooled heat exchanger (13), an outdoor heat exchanger (14) and an indoor heat exchange assembly (15). An outlet (17) of the compressor is connected to an inlet (23) of the first water-cooled heat exchanger, an outlet (24) of the first water-cooled heat exchanger is connected to an inlet (19) of the outdoor heat exchanger, and an outlet (18) of the outdoor heat exchanger is connected to the indoor heat exchange assembly. The indoor heat exchange assembly is connected to an inlet (16) of the compressor, so as to output a refrigerant to the compressor.

Inventors

  • LIAO, Xingdong
  • XIA, Songyong
  • WANG, JIAN
  • SUN, LIGANG
  • XING, XIAODONG

Assignees

  • ZHEJIANG ZEEKR INTELLIGENT TECHNOLOGY CO., LTD.
  • Zhejiang Geely Holding Group Co., Ltd.

Dates

Publication Date
20260513
Application Date
20240520

Claims (15)

  1. A thermal management system (10), comprising a refrigerant circuit (11); wherein the refrigerant circuit (11) comprises a cooling circuit (62); wherein the cooling circuit (62) comprises a compressor (12), a first water-cooling heat exchanger (13), an outdoor heat exchanger (14), and an indoor heat exchange assembly (15); wherein an outlet (17) of the compressor (12) is connected to an inlet (23) of the first water-cooling heat exchanger (13), an outlet (24) of the first water-cooling heat exchanger (13) is connected to an inlet (19) of the outdoor heat exchanger (14), an outlet (18) of the outdoor heat exchanger (14) is connected to the indoor heat exchange assembly (15), and the indoor heat exchange assembly (15) is connected to an inlet (16) of the compressor (12) to output refrigerant to the compressor (12).
  2. The thermal management system (10) according to claim 1, wherein the indoor heat exchange assembly (15) comprises a first indoor heat exchanger (20) and a second water-cooling heat exchanger (26); the outlet (18) of the outdoor heat exchanger (14) is connected to a first port (22) of the first indoor heat exchanger (20) and an inlet (28) of the second water-cooling heat exchanger (26); a second port (27) of the first indoor heat exchanger (20) and an outlet (29) of the second water-cooling heat exchanger (26) are connected to the inlet (16) of the compressor (12); the refrigerant circuit (11) comprises a heating circuit (63) and a switching assembly (64); the compressor (12), the first water-cooling heat exchanger (13), the switching assembly (64), the first indoor heat exchanger (20), and the second water-cooling heat exchanger (26) are sequentially connected to form the heating circuit (63); the outlet (17) of the compressor (12) is connected to the inlet (23) of the first water-cooling heat exchanger (13), the outlet (24) of the first water-cooling heat exchanger (13) is connected to the second port (27) of the first indoor heat exchanger (20), the first port (22) of the first indoor heat exchanger (20) is connected to the inlet (28) of the second water-cooling heat exchanger (26), and the outlet (29) of the second water-cooling heat exchanger (26) is connected to the inlet (16) of the compressor (12); and the outlet (24) of the first water-cooling heat exchanger (13), the inlet (19) of the outdoor heat exchanger (14), and the second port (27) of the first indoor heat exchanger (20) are connected to the switching assembly (64).
  3. The thermal management system (10) according to claim 2, further comprising a first sub coolant circuit (33), a second sub coolant circuit (34), and a multi-way valve (35), wherein coolant in the first sub coolant circuit (33) passes through the second water-cooling heat exchanger (26); the second sub coolant circuit (34) comprises a battery assembly (36), the first sub coolant circuit (33) and the second sub coolant circuit (34) are both connected to the multi-way valve (35), to enable the first sub coolant circuit (33) and the second sub coolant circuit (34) to be connected or disconnected by the multi-way valve (35).
  4. The thermal management system (10) according to claim 2, further comprising a third sub coolant circuit (38), a fourth sub coolant circuit (39), and a multi-way valve (35), wherein the third sub coolant circuit (38) comprises a radiator (40), the fourth sub coolant circuit (39) comprises an electrical assembly (41), the third sub coolant circuit (38) and the fourth sub coolant circuit (39) are both connected to the multi-way valve (35), to enable the third sub coolant circuit (38) and the fourth sub coolant circuit (39) to be connected or disconnected by the multi-way valve (35).
  5. The thermal management system (10) according to claim 4, further comprising a fifth sub coolant circuit (49), wherein coolant in the fifth sub coolant circuit (49) passes through the first water-cooling heat exchanger (13); the fifth sub coolant circuit (49) is connected to the multi-way valve (35), and the multi-way valve (35) enables the fifth sub coolant circuit (49) to be connected or disconnected with the third sub coolant circuit (38).
  6. The thermal management system (10) according to claim 4 or 5, further comprising a first sub coolant circuit (33), wherein coolant in the first sub coolant circuit (33) passes through the second water-cooling heat exchanger (26); the first sub coolant circuit (33) is connected to the multi-way valve (35), to enable the first sub coolant circuit (33) to be selectively connected to at least one of the third sub coolant circuit (38) or the fourth sub coolant circuit (39) by the multi-way valve (35).
  7. The thermal management system (10) according to claim 2, wherein the indoor heat exchange assembly (15) comprises a second indoor heat exchanger (58), the outlet (18) of the outdoor heat exchanger (14) is connected to an inlet (65) of the second indoor heat exchanger (58), an outlet (66) of the second indoor heat exchanger (58) is connected to the inlet (16) of the compressor (12); wherein the first indoor heat exchanger (20) is configured for heat exchange with air in a driver cabin of a vehicle, and the second indoor heat exchanger (58) is configured for heat exchange with air in a passenger cabin of the vehicle.
  8. The thermal management system (10) according to claim 7, wherein the indoor heat exchange assembly (15) comprises a first fan (59) and an air heater (60), and the first fan (59), the second indoor heat exchanger (58), and the air heater (60) are arranged side by side.
  9. The thermal management system (10) according to claim 7, wherein the indoor heat exchange assembly (15) comprises a sixth control valve (57), the outlet (18) of the outdoor heat exchanger (14) is connected to one end of the sixth control valve (57), and the other end of the sixth control valve (57) is connected to the inlet (65) of the second indoor heat exchanger (58); when the sixth control valve (57) is opened, the cooling circuit (62) is formed in which the compressor (12), the first water-cooling heat exchanger (13), the outdoor heat exchanger (14), and the second indoor heat exchanger (58) are sequentially connected.
  10. The thermal management system (10) according to claim 2, further comprising a fifth sub coolant circuit (49), wherein the fifth sub coolant circuit (49) comprises a heater core (51), and coolant in the fifth sub coolant circuit (49) passes through the first water-cooling heat exchanger (13); the indoor heat exchange assembly (15) comprises a second fan (52), wherein the second fan (52), the first indoor heat exchanger (20), and the heater core (51) are arranged side by side.
  11. The thermal management system (10) according to claim 10, wherein the fifth sub coolant circuit (49) comprises a three-way valve (54), a coolant main circuit (55), and a coolant branch circuit (56); coolant in the coolant main circuit (55) passes through the first water-cooling heat exchanger (13); the coolant branch circuit (56) comprises the heater core (51); an inlet of the three-way valve (54) and a first outlet of the three-way valve (54) are connected to the main coolant circuit (55), a second outlet of the three-way valve (54) is connected to the coolant branch circuit (56), and the inlet of the three-way valve (54) is connected to one of the first outlet of the three-way valve (54) or the second outlet of the three-way valve (54); and/or the fifth sub coolant circuit (49) comprises a coolant heater (53) for heating the coolant in the fifth sub coolant circuit (49).
  12. The thermal management system (10) according to claim 2, wherein the indoor heat exchange assembly (15) comprises a third control valve (30), the second port (27) of the first indoor heat exchanger (20) is connected to one end of the third control valve (30), and the other end of the third control valve (30) is connected to the inlet (16) of the compressor (12); when the thermal management system (10) is in a cooling mode, the third control valve (30) is opened to form the cooling circuit (62); and when the thermal management system (10) is in a heating mode, the third control valve (30) is closed to form the heating circuit (63).
  13. The thermal management system (10) according to claim 2, wherein the switching assembly (64) comprises a fourth control valve (31) and a fifth control valve (32), wherein the outlet (24) of the first water-cooling heat exchanger (13) is connected to one end of the fourth control valve (31), and the other end of the fourth control valve (31) is connected to the inlet (19) of the outdoor heat exchanger (14); when the fourth control valve (31) is opened, the cooling circuit (62) is formed in which the compressor (12), the first water-cooling heat exchanger (13), the outdoor heat exchanger (14), and the indoor heat exchange assembly (15) are sequentially connected; the outlet (24) of the first water-cooling heat exchanger (13) is further connected to one end of the fifth control valve (32), and the other end of the fifth control valve (32) is connected to the second port (27) of the first indoor heat exchanger (20); and when the fifth control valve (32) is opened, the heating circuit (63) is formed in which the compressor (12), the first water-cooling heat exchanger (13), the first indoor heat exchanger (20), and the second water-cooling heat exchanger (26) are sequentially connected.
  14. The thermal management system (10) according to claim 2, wherein the switching assembly (64) comprises a switching valve, and the outlet (24) of the first water-cooling heat exchanger (13), the inlet (19) of the outdoor heat exchanger (14), and the second port (27) of the first indoor heat exchanger (20) are connected to the switching valve; by controlling switching of the switching valve, the outlet (24) of the first water-cooling heat exchanger (13) is enabled to be connected to one of the inlet (19) of the outdoor heat exchanger (14) or the second port (27) of the first indoor heat exchanger (20).
  15. A vehicle comprising the thermal management system (10) according to any one of claims 1-14.

Description

CROSS REFERENCE TO RELATED APPLICATIONS This application claims priority to the Chinese patent application with application number 202310809208.7, submitted to the Chinese Patent Office on July 3, 2023, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD The embodiments of the present disclosure relate to but are not limited to the field of thermal management technology, and particularly relate to but are not limited to thermal management systems and vehicles. BACKGROUND With the gradual development of technology, new energy vehicles have gradually come into people's vision. New energy vehicles use unconventional fuels as their power source. New energy vehicles usually have functions such as car cooling and heating. SUMMARY The following is a summary of the subject matters described in detail in the present disclosure. This summary is not intended to limit the protection scope of the claims. The present disclosure provides a thermal management system including a refrigerant circuit; where the refrigerant circuit includes a cooling circuit; the cooling circuit includes a compressor, a first water-cooling heat exchanger, an outdoor heat exchanger, and an indoor heat exchange assembly; where an outlet of the compressor is connected to an inlet of the first water-cooling heat exchanger, an outlet of the first water-cooling heat exchanger is connected to an inlet of the outdoor heat exchanger, an outlet of the outdoor heat exchanger is connected to the indoor heat exchange assembly, and the indoor heat exchange assembly is connected to an inlet of the compressor to output refrigerant to the compressor. In some embodiments, the indoor heat exchange assembly includes a first indoor heat exchanger and a second water-cooling heat exchanger; the outlet of the outdoor heat exchanger is connected to a first port of the first indoor heat exchanger and an inlet of the second water-cooling heat exchanger; a second port of the first indoor heat exchanger and an outlet of the second water-cooling heat exchanger are connected to the inlet of the compressor; the refrigerant circuit includes a heating circuit and a switching assembly; the compressor, the first water-cooling heat exchanger, the switching assembly, the first indoor heat exchanger, and the second water-cooling heat exchanger are sequentially connected to form the heating circuit; the outlet of the compressor is connected to the inlet of the first water-cooling heat exchanger, the outlet of the first water-cooling heat exchanger is connected to the second port of the first indoor heat exchanger, the first port of the first indoor heat exchanger is connected to the inlet of the second water-cooling heat exchanger, and the outlet of the second water-cooling heat exchanger is connected to the inlet of the compressor; andthe outlet of the first water-cooling heat exchanger, the inlet of the outdoor heat exchanger, and the second port of the first indoor heat exchanger are connected to the switching assembly. In some embodiments, the thermal management system further includes a first sub coolant circuit, a second sub coolant circuit, and a multi-way valve, where coolant in the first sub coolant circuit passes through the second water-cooling heat exchanger; the second sub coolant circuit includes a battery assembly, the first sub coolant circuit and the second sub coolant circuit are both connected to the multi-way valve, to enable the first sub coolant circuit and the second sub coolant circuit to be connected or disconnected by the multi-way valve. In some embodiments, the thermal management system further includes a third sub coolant circuit, a fourth sub coolant circuit, and a multi-way valve, where the third sub coolant circuit includes a radiator, the fourth sub coolant circuit includes an electrical assembly, the third sub coolant circuit and the fourth sub coolant circuit are both connected to the multi-way valve, to enable the third sub coolant circuit and the fourth sub coolant circuit to be connected or disconnected by the multi-way valve. In some embodiments, the thermal management system further includes a fifth sub coolant circuit, where coolant in the fifth sub coolant circuit passes through the first water-cooling heat exchanger; the fifth sub coolant circuit is connected to the multi-way valve, and the multi-way valve enables the fifth sub coolant circuit to be connected or disconnected with the third sub coolant circuit; and/or the thermal management system further includes a first sub coolant circuit, where coolant in the first sub coolant circuit passes through the second water-cooling heat exchanger; the first sub coolant circuit is connected to the multi-way valve, to enable the first sub coolant circuit to be selectively connected to at least one of the third sub coolant circuit or the fourth sub coolant circuit by the multi-way valve. In some embodiments, the indoor heat exchange assembly includes a second indoor h