CN-121989625-A - Vehicle thermal management device and vehicle-station cooperative thermal management system

CN121989625ACN 121989625 ACN121989625 ACN 121989625ACN-121989625-A

Abstract

The application relates to a vehicle thermal management device and a vehicle-station cooperative thermal management system, which comprises a vehicle-end battery thermal management loop, a vehicle-end air conditioning thermal management loop, a vehicle-end electric drive thermal management loop and a vehicle-end warm air thermal management loop, wherein the vehicle-end battery thermal management loop comprises a first pipeline, a power battery and a battery thermal management first heat exchanger are arranged on the first pipeline, the vehicle-end air conditioning thermal management loop comprises a second pipeline, a refrigerating unit is arranged on the second pipeline, the second pipeline is connected with the first pipeline through the battery thermal management first heat exchanger, the vehicle-end electric drive thermal management loop comprises a third pipeline, an electric drive assembly and an electric drive thermal management heat exchanger are arranged on the third pipeline, the third pipeline is connected with the first pipeline through a medium switching valve, the vehicle-end warm air thermal management loop comprises a fourth pipeline, and the fourth pipeline is provided with a heating circulation unit and is connected with the third pipeline through the electric drive thermal management heat exchanger. The application reduces the redundant design of the system and realizes the compact arrangement of each loop component.

Inventors

WU HUAIZHU
YU LIANG
MENG GUODONG
LI CHUNDONG
JIN BENCHANG
LIU WENQIN

Assignees

东风商用车有限公司

Dates

Publication Date: 20260508
Application Date: 20260313

Claims (10)

1. A vehicle thermal management device, characterized by comprising: the vehicle-end battery thermal management loop comprises a first pipeline, wherein a power battery (9) and a battery thermal management first heat exchanger (7) are arranged on the first pipeline; The vehicle-end air conditioner thermal management loop comprises a second pipeline, a refrigerating unit is arranged on the second pipeline, and the second pipeline is connected with the first pipeline through a battery thermal management first heat exchanger (7); the vehicle-end electric drive thermal management loop comprises a third pipeline, wherein an electric drive assembly (29) and an electric drive thermal management heat exchanger (30) are arranged on the third pipeline, and the third pipeline is connected with the first pipeline through a medium switching valve; The vehicle-end warm air heat management loop comprises a fourth pipeline, a heating circulation unit is arranged on the fourth pipeline, and the fourth pipeline is connected with the third pipeline through an electrically-driven heat management heat exchanger (30).
2. The vehicle thermal management apparatus according to claim 1, wherein: the first pipeline is also provided with a first PTC (11) and a second water pump (13); The first PTC (11) is arranged between one end of the battery thermal management first heat exchanger (7) and one end of the power battery (9), and the second water pump (13) is arranged between the other end of the battery thermal management first heat exchanger (7) and the other end of the power battery (9).
3. The vehicle thermal management apparatus of claim 2, wherein: A first three-way valve (8) is arranged between the first PTC (11) and the power battery (9), the vehicle-end battery thermal management loop further comprises a battery thermal management second heat exchanger (12) and a first water pump (10) connected in series with the battery thermal management second heat exchanger (12), the battery thermal management second heat exchanger (12) is connected with one port of the first three-way valve (8) through a first connecting branch (38), the first water pump (10) is connected with the power battery (9) through a second connecting branch (39), and the first water pump (10) is connected with the vehicle-end electric drive thermal management loop through a third connecting branch (40); The first pipeline is also provided with a first temperature sensor (14) and a second temperature sensor (15), and the first temperature sensor (14) and the second temperature sensor (15) are respectively arranged at two ends of the power battery (9) and are used for collecting the temperature of cooling liquid of the vehicle-end battery thermal management loop.
4. The vehicle thermal management apparatus according to claim 1, wherein: The refrigerating unit comprises a vehicle end compressor (18), an evaporator (19) and a second condenser (20) which are sequentially arranged on the second pipeline; The second pipeline is connected to one end of the battery thermal management first heat exchanger (7) through a fourth connecting branch (41), and is connected to the other end of the battery thermal management first heat exchanger (7) through a fifth connecting branch (42), and a third expansion valve (26) is arranged on the fourth connecting branch (41); The second pipeline is also provided with a first warm-pressing sensor (22) and a second warm-pressing sensor (23), and the first warm-pressing sensor (22) and the second warm-pressing sensor (23) are respectively arranged at two ends of the vehicle-end compressor (18).
5. The vehicle thermal management apparatus according to claim 1, wherein: The third pipeline is also provided with a radiator (24), a fan assembly (25) and a third water pump (28); The vehicle-end electric drive thermal management loop further comprises a double-cavity expansion tank (17), one end of the double-cavity expansion tank (17) is connected with the third pipeline through a sixth connecting branch (43), and the other end of the double-cavity expansion tank is connected with the first pipeline through a seventh connecting branch (44).
6. The vehicle thermal management apparatus of claim 5, wherein: One end of the electric drive thermal management heat exchanger (30) is connected with the electric drive assembly (29); a second three-way valve (27) is arranged between the radiator (24) and the third water pump (28), and one port of the second three-way valve (27) is connected with the other end of the electrically-driven thermal management heat exchanger (30) through an eighth connecting branch (45); And a third temperature sensor (31) and a fourth temperature sensor (32) are also arranged on the third pipeline.
7. The vehicle thermal management apparatus according to claim 1, wherein: The heating circulation unit comprises a fourth water pump (34) and a second PTC (35) which are sequentially arranged on a fourth pipeline; The fourth pipeline is further provided with a warm air heat management heat exchanger (36), a third three-way valve (33) is arranged between the warm air heat management heat exchanger (36) and the fourth water pump (34), one port of the third three-way valve (33) is connected with one port of the electric drive heat management heat exchanger (30) through a ninth connecting branch (46), and the other port of the electric drive heat management heat exchanger (30) is connected with the fourth water pump (34) through a tenth connecting branch (47).
8. A vehicle-to-station cooperative thermal management system, comprising: the vehicle thermal management apparatus according to any one of claims 1 to 7; The station-side battery thermal management loop comprises a station-side battery thermal management unit (1), and the station-side battery thermal management unit (1) is detachably connected with the vehicle-side battery thermal management loop through a connector (5).
9. The cart-to-station collaborative thermal management system according to claim 8, wherein: The first pipeline is also provided with a first PTC (11) and a second water pump (13), a first three-way valve (8) is arranged between the first PTC (11) and the power battery (9), the vehicle-end battery thermal management loop further comprises a battery thermal management second heat exchanger (12) and a first water pump (10) connected with the battery thermal management second heat exchanger (12) in series, the battery thermal management second heat exchanger (12) is connected with one port of the first three-way valve (8) through a first connecting branch (38), the first water pump (10) is connected with the power battery (9) through a second connecting branch (39), and the first water pump (10) is also connected with the vehicle-end electric drive thermal management loop through a third connecting branch (40); the station-side battery thermal management unit (1) is detachably connected with the battery thermal management second heat exchanger (12) through a connector (5).
10. The cart-to-station collaborative thermal management system according to claim 8, wherein: The station-end battery thermal management unit (1) comprises a fifth pipeline, and a refrigerant loop compressor (101), an electronic fan (104), a first condenser (105), a station-end heat exchanger (107) and a cooling liquid loop water pump (108) are arranged on the fifth pipeline.

Description

Vehicle thermal management device and vehicle-station cooperative thermal management system Technical Field The application relates to the field of automobile battery thermal management systems, in particular to a vehicle thermal management device and a vehicle-station cooperative thermal management system. Background The power battery thermal management system of the existing pure electric vehicle adopts a free-standing thermal management system or a two-in-one integrated thermal management system integrated with an air conditioning system, has the advantages of various parts, high cost, tense whole vehicle arrangement space, low assembly efficiency, more power consumption parts such as a compressor, a fan and the like, high system energy consumption and high noise, and simultaneously, as the rapid charging demand of the power battery is increased, the heat dissipation demand of the power battery is also increased in multiple times, and the heat dissipation system is limited by the arrangement space and the manufacturing cost of the whole vehicle, so that measures such as increasing the displacement of the compressor, increasing the size of the condenser, increasing the number of heat dissipation fans and the like are not very good choices, and simultaneously, the problems of high energy consumption, high noise and shortening the whole vehicle endurance are brought; Meanwhile, the performance of the power battery thermal management system is designed mainly to meet the power battery thermal management requirement of the charging working condition, and the power battery thermal management system is excessive in performance in a driving state, so that certain waste is brought to the cost, arrangement space, energy consumption and the like of the whole vehicle. Disclosure of Invention The application provides a vehicle thermal management device and a vehicle-station cooperative thermal management system, which can solve the problems of increased cost and overlarge space occupation of a whole vehicle caused by the fact that a power battery thermal management system simultaneously meets the requirements of driving and high-rate charging in the related art. In a first aspect, the embodiment of the application provides a vehicle thermal management device, which comprises a vehicle-end battery thermal management loop, a vehicle-end air-conditioning thermal management loop, a vehicle-end electric drive thermal management loop and a vehicle-end warm air thermal management loop, wherein the vehicle-end battery thermal management loop comprises a first pipeline, a power battery and a battery thermal management first heat exchanger are arranged on the first pipeline, the vehicle-end air-conditioning thermal management loop comprises a second pipeline, a refrigerating unit is arranged on the second pipeline, the second pipeline is connected with the first pipeline through the battery thermal management first heat exchanger, the vehicle-end electric drive thermal management loop comprises a third pipeline, the third pipeline is provided with an electric drive assembly and an electric drive thermal management heat exchanger, the third pipeline is connected with the first pipeline through a medium switching valve, the vehicle-end warm air thermal management loop comprises a fourth pipeline, and the fourth pipeline is provided with a heating circulation unit and is connected with the third pipeline through the electric drive thermal management heat exchanger. With reference to the first aspect, in one embodiment, the first pipeline is further provided with a first PTC and a second water pump; The first PTC is arranged between one end of the battery heat management first heat exchanger and one end of the power battery, and the second water pump is arranged between the other end of the battery heat management first heat exchanger and the other end of the power battery. With reference to the first aspect, in an embodiment, a first three-way valve is disposed between the first PTC and the power battery, the vehicle-end battery thermal management circuit further includes a battery thermal management second heat exchanger and a first water pump connected in series with the battery thermal management second heat exchanger, the battery thermal management second heat exchanger is connected with one of ports of the first three-way valve through a first connection branch, the first water pump is connected with the power battery through a second connection branch, and the first water pump is further connected with the vehicle-end electrically-driven thermal management circuit through a third connection branch; the first pipeline is also provided with a first temperature sensor and a second temperature sensor, and the first temperature sensor and the second temperature sensor are respectively arranged at two ends of the power battery and are used for collecting the temperature of cooling liquid of the vehicle-end battery thermal managem