Granted Patent B2

US 12,722,448 · App. 18/232,801 · Granted Sep 1, 2026

Inventors: Junqi Dong (Shaoxing City, CN); Weiwei Zhang (Shaoxing City, CN)

Assignee: SANHUA HOLDING GROUP CO., LTD.

B60H1/00278B60H1/00392B60H1/32281B60H1/32284B60H1/323H01M10/613H01M10/625H01M10/63H01M10/6568H01M10/6569H01M10/663B60H2001/00307B60H2001/00928H01M2220/20Y02E60/10Y02T10/70

Abstract

Claims (47)

1 . A thermal management system, comprising: a primary system and a secondary system;

the primary system comprising a primary refrigerant system and a primary coolant system; the primary system comprising a first heat exchanger; the first heat exchanger comprising a first heat exchange portion and a second heat exchange portion which are not communicated; the first heat exchange portion and the second heat exchange portion being configured to perform heat exchange; the primary refrigerant system comprising a first compressor, a second heat exchanger, a first throttler and the first heat exchange portion; the primary coolant system comprising the second heat exchange portion;

the secondary system comprising a secondary refrigerant system and a secondary coolant system; the secondary system comprising a third heat exchanger; the third heat exchanger comprising a third heat exchange portion and a fourth heat exchange portion which are not communicated; the third heat exchange portion and the fourth heat exchange portion being configured to perform heat exchange; the secondary refrigerant system comprising a second compressor, a fourth heat exchanger, a second throttler and the third heat exchange portion; the secondary coolant system comprising the fourth heat exchange portion;

the thermal management system comprising a battery heat exchange assembly;

the thermal management system having a battery rapid heat dissipation mode; wherein in the battery rapid heat dissipation mode: an outlet of the first compressor communicates with a first port of the second heat exchanger; a second port of the second heat exchanger communicates with a first port of the first throttler; a second port of the first throttler communicates with a first port of the first heat exchange portion; a second port of the first heat exchange portion communicates with an inlet of the first compressor; the battery heat exchange assembly communicates with the second heat exchange portion;

an outlet of the second compressor communicates with a first port of the fourth heat exchanger; a second port of the fourth heat exchanger communicates with a first port of the second throttler; a second port of the second throttler communicates with a first port of the third heat exchange portion; a second port of the third heat exchange portion communicates with an inlet of the second compressor; the battery heat exchange assembly communicates with the fourth heat exchange portion;

wherein the fourth heat exchanger comprises a fifth heat exchange portion and a sixth heat exchange portion which are not communicated; the fifth heat exchange portion and the sixth heat exchange portion are configured to perform heat exchange;

the secondary coolant system comprises a fifth heat exchanger and a third flow path; the fifth heat exchanger and the sixth heat exchange portion are in communication with the third flow path; the third flow path is not in communication with a flow path where the battery heat exchange assembly is located;

in the battery rapid heat dissipation mode: the fifth heat exchanger communicates with the sixth heat exchange portion.

2 . The thermal management system according to claim 1 , wherein the thermal management system comprises a controller; the battery rapid heat dissipation mode is executed under the control of the controller; the primary coolant system comprises a first flow path and a first pump; the first pump communicates with the second heat exchange portion in the first flow path; the secondary coolant system comprises a second flow path and a second pump; the second pump communicates with the fourth heat exchange portion in the second flow path;

in the battery rapid heat dissipation mode: the first flow path communicates with the battery heat exchange assembly to form a loop; the second flow path communicates with the battery heat exchange assembly to form a loop; after flowing through the battery heat exchange assembly, coolant is divided into two paths, in which one path flows to the first flow path, and the other path flows to the second flow path, the coolant flowing through the first flow path and the coolant flowing through the second flow path merge and flow together to the battery heat exchange assembly.

3 . The thermal management system according to claim 1 , wherein the thermal management system comprises a third pump;

in the battery rapid heat dissipation mode: the battery heat exchange assembly, the third pump, the second heat exchange portion and the fourth heat exchange portion are communicated.

4 . The thermal management system according to claim 3 , wherein the thermal management system comprises a first branch;

the thermal management system comprises a first flow path switcher; the first flow path switcher comprises a first port, a second port and a third port; the first port is capable of communicating with the battery heat exchange assembly, the second port communicates with the first branch; the third port communicates with the fourth heat exchange portion;

in the battery rapid heat dissipation mode: the first port communicates with the third port; the first port is not in communication with the second port; the first port communicates with the battery heat exchange assembly; the battery heat exchange assembly, the second heat exchange portion and the third pump communicate with the fourth heat exchange portion.

5 . The thermal management system according to claim 1 , wherein the fifth heat exchanger comprises a first sub-heat exchanger and a second sub-heat exchanger;

in the battery rapid heat dissipation mode: a first port of the first sub-heat exchanger communicates with a first port of the sixth heat exchange portion; a first port of the second sub-heat exchanger communicates with the first port of the sixth heat exchange portion; a second port of the first sub-heat exchanger communicates with a second port of the sixth heat exchange portion; a second port of the second sub-heat exchanger communicates with the second port of the sixth heat exchange portion.

6 . The thermal management system according to claim 5 , wherein the second heat exchanger comprises a third sub-heat exchanger, a fourth sub-heat exchanger and a fifth sub-heat exchanger;

in the battery rapid heat dissipation mode: the first port of the third sub-heat exchanger communicates with the inlet of the first compressor; a first port of the fourth sub-heat exchanger communicates with the inlet of the first compressor; a second port of the third sub-heat exchanger communicates with a first port of the fifth sub-heat exchanger; a second port of the fourth sub-heat exchanger communicates with the first port of the fifth sub-heat exchanger; a second port of the fifth sub-heat exchanger communicates with the first port of the first throttler.

7 . The thermal management system according to claim 6 , wherein the primary coolant system further comprises a motor heat exchange assembly and a sixth heat exchanger;

in the battery rapid heat dissipation mode: the motor heat exchange assembly communicates with the sixth heat exchanger.

8 . The thermal management system according to claim 7 , wherein the third sub-heat exchanger and the fourth sub-heat exchanger are located on opposite sides of the fifth sub-heat exchanger in a length direction, respectively; a length direction of the third sub-heat exchanger intersects the length direction of the fifth sub-heat exchanger at a first point; the third sub-heat exchanger is rotated by a first angle α around the first point relative to the fifth sub-heat exchanger; a length direction of the fourth sub-heat exchanger intersects the length direction of the fifth sub-heat exchanger at a second point; the fourth sub-heat exchanger is rotated by a second angle β around the second point relative to the fifth sub-heat exchanger; both the first angle α and the second angle β are obtuse angles.

9 . The thermal management system according to claim 8 , wherein the first sub-heat exchanger and the second sub-heat exchanger are located on opposite sides of the fifth sub-heat exchanger in the length direction, respectively; the sixth heat exchanger is located between the first sub-heat exchanger and the second sub-heat exchanger;

the thermal management system further comprises a first air supplier, a second air supplier and a third air supplier; the first air supplier, the third sub-heat exchanger and the first sub-heat exchanger are disposed side by side; the second air supplier, the fourth sub-heat exchanger and the second sub-heat exchanger are disposed side by side; the third air supplier, the fifth sub-heat exchanger and the sixth heat exchanger are disposed side by side;

the air sent by the first air supplier is capable of flowing through the first sub-heat exchanger and the third sub-heat exchanger; the air sent by the second air supplier is capable of flowing through the second sub-heat exchanger and the fourth sub-heat exchanger; the air sent by the third air supplier is capable of flowing through the fifth sub-heat exchanger and the sixth heat exchanger; along an air supply direction of the first air supplier, the third sub-heat exchanger is located in front of the first sub-heat exchanger, and the third sub-heat exchanger is located between the first sub-heat exchanger and the first air supplier; along an air supply direction of the second air supplier, the fourth sub-heat exchanger is located in front of the second sub-heat exchanger, and the fourth sub-heat exchanger is located between the second sub-heat exchanger and the second air supplier; along an air supply direction of the third air supplier, the sixth heat exchanger is located in front of the fifth sub-heat exchanger, and the sixth heat exchanger is located between the fifth sub-heat exchanger and the third air supplier;

a length direction of the first sub-heat exchanger is parallel to the length direction of the third sub-heat exchanger; a length direction of the second sub-heat exchanger is parallel to the length direction of the fourth sub-heat exchanger; a length direction of the sixth heat exchanger is parallel to the length direction of the fifth sub-heat exchanger; the air supply direction of the first air supplier is perpendicular to the length direction of the third sub-heat exchanger; the air supply direction of the second air supplier is perpendicular to the length direction of the fourth sub-heat exchanger; the air supply direction of the third air supplier is perpendicular to the length direction of the fifth sub-heat exchanger.

10 . The thermal management system according to claim 9 , wherein the thermal management system further comprises a seventh heat exchanger; the seventh heat exchanger comprises a seventh heat exchange portion and an eighth heat exchange portion which are not communicated; the seventh heat exchange portion is configured to perform heat exchange with the eighth heat exchange portion;

in the battery rapid heat dissipation mode: the seventh heat exchange portion communicates with the sixth heat exchanger; the eighth heat exchange portion is communicated between the outlet of the second compressor and the first port of the second throttler.

11 . A thermal management system, comprising: a primary system and a secondary system;

the primary system comprising a primary refrigerant system and a primary coolant system; the primary system comprising a first heat exchanger; the first heat exchanger comprising a first heat exchange portion and a second heat exchange portion which are not communicated; the first heat exchange portion and the second heat exchange portion being configured to perform heat exchange; the primary refrigerant system comprising a first compressor, a second heat exchanger, a first throttler and the first heat exchange portion; the primary coolant system comprising the second heat exchange portion;

the secondary system comprising a secondary refrigerant system and a secondary coolant system; the secondary system comprising a third heat exchanger; the third heat exchanger comprising a third heat exchange portion and a fourth heat exchange portion which are not communicated; the third heat exchange portion and the fourth heat exchange portion being configured to perform heat exchange; the secondary refrigerant system comprising a second compressor, a fourth heat exchanger, a second throttler and the third heat exchange portion; the secondary coolant system comprising the fourth heat exchange portion;

the thermal management system comprising a battery heat exchange assembly;

the thermal management system having a battery rapid heat dissipation mode; wherein in the battery rapid heat dissipation mode: an outlet of the first compressor communicates with a first port of the second heat exchanger; a second port of the second heat exchanger communicates with a first port of the first throttler; a second port of the first throttler communicates with a first port of the first heat exchange portion; a second port of the first heat exchange portion communicates with an inlet of the first compressor; the battery heat exchange assembly communicates with the second heat exchange portion;

an outlet of the second compressor communicates with a first port of the fourth heat exchanger; a second port of the fourth heat exchanger communicates with a first port of the second throttler; a second port of the second throttler communicates with a first port of the third heat exchange portion; a second port of the third heat exchange portion communicates with an inlet of the second compressor; the battery heat exchange assembly communicates with the fourth heat exchange portion;

wherein the secondary refrigerant system further comprises a second flow path switcher; the second flow path switcher comprises a fourth port, a fifth port, a sixth port and a seventh port; the fourth port communicates with the outlet of the second compressor; the fifth port communicates with the third heat exchange portion; the sixth port communicates with the inlet of the second compressor; the seventh port communicates with the fourth heat exchanger;

the second flow path switcher comprises a first working state and a second working state; in the first working state, the fourth port communicates with the seventh port; the fifth port communicates with the sixth port; the fourth port is not in communication with the fifth port; the sixth port is not in communication with the seventh port;

in the second working state, the fourth port communicates with the fifth port; the seventh port communicates with the sixth port; the fourth port is not in communication with the seventh port; the fifth port is not in communication with the sixth port.

12 . The thermal management system according to claim 11 , wherein the thermal management system further comprises a battery rapid heat absorption mode; in the battery rapid heat absorption mode: the outlet of the first compressor communicates with the second port of the first heat exchange portion; the first port of the first heat exchange portion communicates with the second port of the first throttler; the first port of the first throttler communicates with the second port of the second heat exchanger; the first port of the second heat exchanger communicates with the inlet of the first compressor;

the outlet of the second compressor communicates with the fourth port of the second flow path switcher; the fifth port of the second flow path switcher communicates with the second port of the third heat exchange portion; the first port of the third heat exchange portion communicates with the second port of the second throttler; the first port of the second throttler communicates with the second port of the fourth heat exchanger, the first port of the fourth heat exchanger communicates with the seventh port of the second flow path switcher; the sixth port of the second flow path switcher communicates with the inlet of the second compressor; the second flow path switcher is in the second working state.

13 . The thermal management system according to claim 11 , wherein the thermal management system comprises a controller; the battery rapid heat dissipation mode is executed under the control of the controller; the primary coolant system comprises a first flow path and a first pump; the first pump communicates with the second heat exchange portion in the first flow path; the secondary coolant system comprises a second flow path and a second pump; the second pump communicates with the fourth heat exchange portion in the second flow path;

in the battery rapid heat dissipation mode: the first flow path communicates with the battery heat exchange assembly to form a loop; the second flow path communicates with the battery heat exchange assembly to form a loop; after flowing through the battery heat exchange assembly, coolant is divided into two paths, in which one path flows to the first flow path, and the other path flows to the second flow path; the coolant flowing through the first flow path and the coolant flowing through the second flow path merge and flow together to the battery heat exchange assembly.

14 . The thermal management system according to claim 11 , wherein the thermal management system comprises a third pump;

in the battery rapid heat dissipation mode: the battery heat exchange assembly, the third pump, the second heat exchange portion and the fourth heat exchange portion are communicated.

15 . The thermal management system according to claim 14 , wherein the thermal management system comprises a first branch;

the thermal management system comprises a first flow path switcher; the first flow path switcher comprises a first port, a second port and a third port; the first port is capable of communicating with the battery heat exchange assembly; the second port communicates with the first branch; the third port communicates with the fourth heat exchange portion;

in the battery rapid heat dissipation mode: the first port communicates with the third port; the first port is not in communication with the second port; the first port communicates with the battery heat exchange assembly; the battery heat exchange assembly, the second heat exchange portion and the third pump communicate with the fourth heat exchange portion.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (22)