US-12617254-B2 - Heat management system for vehicle and vehicle

US12617254B2US 12617254 B2US12617254 B2US 12617254B2US-12617254-B2

Abstract

A heat management system includes a first heat exchanger, a second heat exchanger, a heat pump, an electric assembly waterway, a radiator waterway, a battery waterway, and a heat exchange waterway. The heat pump module includes a first heat exchange pipeline and a second heat exchange pipeline. A first heat exchange passage and a second heat exchange passage of the first heat exchanger are respectively disposed on the second heat exchange pipeline and the heat exchange waterway. A third heat exchange passage of the second heat exchanger is disposed on the first heat exchange pipeline, and a fourth heat exchange passage of the second heat exchanger is in communication with the radiator waterway. The radiator waterway and the electric assembly waterway may be in communication in series.

Inventors

Dongsheng YANG
Yunhui BAI
Junyan Zhang
Shangzhong ZHAO
Tao Liang

Assignees

BYD COMPANY LIMITED

Dates

Publication Date: 20260505
Application Date: 20231130
Priority Date: 20210930

Claims (20)

1 . A heat management system for a vehicle, comprising: a first heat exchanger having a first heat exchange passage and a second heat exchange passage; a second heat exchanger having a third heat exchange passage and a fourth heat exchange passage; a heat pump comprising a compressor, a heating pipeline, a first heat exchange pipeline, a refrigerating pipeline, a gas-liquid separator, a first switching pipeline, and a second heat exchange pipeline; a condenser disposed on the heating pipeline, an evaporator disposed on the refrigerating pipeline, the third heat exchange passage disposed on the first heat exchange pipeline, and the first heat exchange passage disposed on the second heat exchange pipeline; the compressor, the heating pipeline, the first heat exchange pipeline, the refrigerating pipeline, and the gas-liquid separator being connected sequentially; the refrigerating pipeline, the first switching pipeline, and the second heat exchange pipeline being connected in parallel; and the refrigerating pipeline, the first switching pipeline, and the second heat exchange pipeline being in communication between the first heat exchange pipeline and the gas-liquid separator; an electric assembly waterway; a radiator waterway, an electric assembly disposed on the electric assembly waterway, a radiator disposed on the radiator waterway, the radiator waterway being in communication with the electric assembly waterway, and the radiator waterway being in communication with the fourth heat exchange passage; and a heat exchange waterway, the second heat exchange passage disposed on the heat exchange waterway.
2 . The heat management system according to claim 1 , further comprising: a battery waterway, a battery disposed on the battery waterway; and a control valve group connected to the battery waterway, the electric assembly waterway, the radiator waterway, and the heat exchange waterway, and configured to switch between a first state and a second state; when the control valve group is in the first state, the radiator waterway being in communication with the electric assembly waterway or the fourth heat exchange passage, or the battery waterway being in communication with the heat exchange waterway, or the radiator waterway being in communication with the electric assembly waterway or the fourth heat exchange passage; and the battery waterway being in communication with the heat exchange waterway; and when the control valve group is in the second state, the battery waterway being in communication with the electric assembly waterway or the fourth heat exchange passage.
3 . The heat management system according to claim 2 , further comprising: an engine waterway an engine disposed on the engine waterway, the first state of the control valve group comprising a first sub-state and a second sub-state, and the second state of the control valve group comprising a third sub-state and a fourth sub-state; when the control valve group is in the first sub-state, the electric assembly waterway or the fourth heat exchange passage being in communication with the radiator waterway; when the control valve group is in the second sub-state, (1) the electric assembly waterway or the fourth heat exchange passage, (2) the radiator waterway, and (3) the engine waterway being in communication sequentially; when the control valve group is in the third sub-state, the electric assembly waterway or the fourth heat exchange passage being in communication with the battery waterway; and when the control valve group is in the fourth sub-state, (1) the electric assembly waterway or the fourth heat exchange passage, (2) the battery waterway, and (3) the engine waterway being in communication sequentially.
4 . The heat management system according to claim 3 , wherein the control valve group comprises: a first four-way valve, wherein the first four-way valve has a first valve port, a second valve port, a third valve port, and a fourth valve port, wherein the first valve port and the second valve port are respectively disposed at a first end of the electric assembly waterway and a first end of the radiator waterway, and the third valve port and the fourth valve port are disposed on the engine waterway; a second four-way valve, wherein the second four-way valve has a fifth valve port, a sixth valve port, a seventh valve port, and an eighth valve port, wherein the fifth valve port and the sixth valve port are disposed on the radiator waterway, and the seventh valve port and the eighth valve port are disposed on the battery waterway; and a third four-way valve, wherein the third four-way valve has a ninth valve port, a tenth valve port, an eleventh valve port, and a twelfth valve port, wherein the ninth valve port and the tenth valve port are disposed at a second end of the electric assembly waterway and a second end of the radiator waterway, and the eleventh valve port and the twelfth valve port are disposed on the battery waterway; wherein: when the control valve group is in the first sub-state, the first valve port is in communication with the second valve port, the third valve port is in communication with the fourth valve port, the fifth valve port is in communication with the sixth valve port, the seventh valve port is in communication with the eighth valve port, the ninth valve port is in communication with the tenth valve port, and the eleventh valve port is in communication with the twelfth valve port; when the control valve group is in the second sub-state, the first valve port is in communication with the fourth valve port, the second valve port is in communication with the third valve port, the fifth valve port is in communication with the sixth valve port, the seventh valve port is in communication with the eighth valve port, the ninth valve port is in communication with the tenth valve port, and the eleventh valve port is in communication with the twelfth valve port; when the control valve group is in the third sub-state, the first valve port is in communication with the second valve port, the third valve port is in communication with the fourth valve port, the fifth valve port is in communication with the eighth valve port, the sixth valve port is in communication with the seventh valve port, the ninth valve port is in communication with the twelfth valve port, and the tenth valve port is in communication with the eleventh valve port; and when the control valve group is in the fourth sub-state, the first valve port is in communication with the fourth valve port, the second valve port is in communication with the third valve port, the fifth valve port is in communication with the eighth valve port, the sixth valve port is in communication with the seventh valve port, the ninth valve port is in communication with the twelfth valve port, and the tenth valve port is in communication with the eleventh valve port.
5 . The heat management system according to claim 4 , wherein a first two-way valve is disposed on the electric assembly waterway, and the first two-way valve controls the electric assembly waterway to be in communication or not in communication between the sixth valve port of the second four-way valve and the ninth valve port of the third four-way valve.
6 . The heat management system according to claim 1 , wherein the radiator waterway comprises a radiator branch and a connected branch, the radiator is disposed on the radiator branch, the radiator branch and the connected branch are connected in parallel, and the radiator branch and the connected branch are configured to switch between a communication state and an non-communication state.
7 . The heat management system according to claim 1 , wherein the condenser comprises: a first condenser and a second condenser, and the second condenser and the first condenser are connected in parallel.
8 . The heat management system according to claim 1 , wherein the evaporator comprises: a first evaporator and a second evaporator, and the first evaporator and the second evaporator are connected in parallel between two connection ends.
9 . The heat management system according to claim 8 , wherein a second two-way valve is disposed on the refrigerating pipeline, and a first end of the second two-way valve is connected to the first heat exchange pipeline and a second end of the second two-way valve is connected to one of the two connection ends.
10 . The heat management system according to claim 1 , further comprising: an engine waterway, the engine waterway comprising an engine and a warm air core, and the engine and the warm air core being connected in series.
11 . A vehicle, comprising a heat management system for a vehicle, the heat management system comprising: a first heat exchanger having a first heat exchange passage and a second heat exchange passage; a second heat exchanger having a third heat exchange passage and a fourth heat exchange passage; a heat pump comprising a compressor, a heating pipeline, a first heat exchange pipeline, a refrigerating pipeline, a gas-liquid separator, a first switching pipeline, and a second heat exchange pipeline; a condenser disposed on the heating pipeline, an evaporator disposed on the refrigerating pipeline, the third heat exchange passage disposed on the first heat exchange pipeline, and the first heat exchange passage disposed on the second heat exchange pipeline; the compressor, the heating pipeline, the first heat exchange pipeline, the refrigerating pipeline, and the gas-liquid separator being connected sequentially; the refrigerating pipeline, the first switching pipeline, and the second heat exchange pipeline being connected in parallel; and the refrigerating pipeline, the first switching pipeline, and the second heat exchange pipeline being in communication between the first heat exchange pipeline and the gas-liquid separator; an electric assembly waterway; a radiator waterway, an electric assembly disposed on the electric assembly waterway, a radiator disposed on the radiator waterway, the radiator waterway being in communication with the electric assembly waterway, and the radiator waterway being in communication with the fourth heat exchange passage; and a heat exchange waterway, the second heat exchange passage disposed on the heat exchange waterway.
12 . The vehicle according to claim 11 , wherein the heat management system further comprises: a battery waterway, a battery disposed on the battery waterway; and a control valve group connected to the battery waterway, the electric assembly waterway, the radiator waterway, and the heat exchange waterway, and configured to switch between a first state and a second state; when the control valve group is in the first state, the radiator waterway being in communication with the electric assembly waterway or the fourth heat exchange passage, or the battery waterway being in communication with the heat exchange waterway, or the radiator waterway being in communication with the electric assembly waterway or the fourth heat exchange passage; and the battery waterway being in communication with the heat exchange waterway; and when the control valve group is in the second state, the battery waterway being in communication with the electric assembly waterway or the fourth heat exchange passage.
13 . The vehicle according to claim 12 , wherein the heat management system further comprises: an engine waterway an engine disposed on the engine waterway, the first state of the control valve group comprising a first sub-state and a second sub-state, and the second state of the control valve group comprising a third sub-state and a fourth sub-state; when the control valve group is in the first sub-state, the electric assembly waterway or the fourth heat exchange passage being in communication with the radiator waterway; when the control valve group is in the second sub-state, (1) the electric assembly waterway or the fourth heat exchange passage, (2) the radiator waterway, and (3) the engine waterway being in communication sequentially; when the control valve group is in the third sub-state, the electric assembly waterway or the fourth heat exchange passage being in communication with the battery waterway; and when the control valve group is in the fourth sub-state, (1) the electric assembly waterway or the fourth heat exchange passage, (2) the battery waterway, and (3) the engine waterway being in communication sequentially.
14 . The vehicle according to claim 13 , wherein the control valve group comprises: a first four-way valve, wherein the first four-way valve has a first valve port, a second valve port, a third valve port, and a fourth valve port, wherein the first valve port and the second valve port are respectively disposed at a first end of the electric assembly waterway and a first end of the radiator waterway, and the third valve port and the fourth valve port are disposed on the engine waterway; a second four-way valve, wherein the second four-way valve has a fifth valve port, a sixth valve port, a seventh valve port, and an eighth valve port, wherein the fifth valve port and the sixth valve port are disposed on the radiator waterway, and the seventh valve port and the eighth valve port are disposed on the battery waterway; and a third four-way valve, wherein the third four-way valve has a ninth valve port, a tenth valve port, an eleventh valve port, and a twelfth valve port, wherein the ninth valve port and the tenth valve port are disposed at a second end of the electric assembly waterway and a second end of the radiator waterway, and the eleventh valve port and the twelfth valve port are disposed on the battery waterway; wherein: when the control valve group is in the first sub-state, the first valve port is in communication with the second valve port, the third valve port is in communication with the fourth valve port, the fifth valve port is in communication with the sixth valve port, the seventh valve port is in communication with the eighth valve port, the ninth valve port is in communication with the tenth valve port, and the eleventh valve port is in communication with the twelfth valve port; when the control valve group is in the second sub-state, the first valve port is in communication with the fourth valve port, the second valve port is in communication with the third valve port, the fifth valve port is in communication with the sixth valve port, the seventh valve port is in communication with the eighth valve port, the ninth valve port is in communication with the tenth valve port, and the eleventh valve port is in communication with the twelfth valve port; when the control valve group is in the third sub-state, the first valve port is in communication with the second valve port, the third valve port is in communication with the fourth valve port, the fifth valve port is in communication with the eighth valve port, the sixth valve port is in communication with the seventh valve port, the ninth valve port is in communication with the twelfth valve port, and the tenth valve port is in communication with the eleventh valve port; and when the control valve group is in the fourth sub-state, the first valve port is in communication with the fourth valve port, the second valve port is in communication with the third valve port, the fifth valve port is in communication with the eighth valve port, the sixth valve port is in communication with the seventh valve port, the ninth valve port is in communication with the twelfth valve port, and the tenth valve port is in communication with the eleventh valve port.
15 . The vehicle according to claim 14 , wherein a first two-way valve is disposed on the electric assembly waterway, and the first two-way valve controls the electric assembly waterway to be in communication or not in communication between the sixth valve port of the second four-way valve and the ninth valve port of the third four-way valve.
16 . The vehicle according to claim 11 , wherein the radiator waterway comprises a radiator branch and a connected branch, the radiator is disposed on the radiator branch, the radiator branch and the connected branch are connected in parallel, and the radiator branch and the connected branch are configured to switch between a communication state and a non-communication state.
17 . The vehicle according to claim 11 , wherein the condenser comprises: a first condenser and a second condenser, and the second condenser and the first condenser are connected in parallel.
18 . The vehicle according to claim 11 , wherein the evaporator comprises: a first evaporator and a second evaporator, and the first evaporator and the second evaporator are connected in parallel between two connection ends.
19 . The vehicle according to claim 18 , wherein a second two-way valve is disposed on the refrigerating pipeline, and a first end of the second two-way valve is connected to the first heat exchange pipeline and a second end of the second two-way valve is connected to one of the two connection ends.
20 . The vehicle according to claim 11 , wherein the heat management system further comprises: an engine waterway, the engine waterway comprising an engine and a warm air core, and the engine and the warm air core being connected in series.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a Continuation Application of International Patent Application No. PCT/CN2022/116348, filed on Aug. 31, 2022, which is based on and claims priority to and benefits of Chinese Patent Application No. 202111164613.5 filed on Sep. 30, 2021. The entire content of all of the above-referenced applications is incorporated herein by reference. FIELD The present disclosure relates to the field of vehicle technologies, and more particularly, to a heat management system for a vehicle and a vehicle. BACKGROUND In the related art, an electric assembly module, a battery module, a heat pump module, and an engine module are integrated and controlled, so that they coordinate with each other, to reduce energy consumption of an entire vehicle, or to implement heat management and proper distribution and utilization of the entire vehicle in a hybrid mode. However, in the foregoing, complex heat management requirements in different driving modes cannot be met. Excess heat interacts with other circuits in an extraction process, making it impossible to maximize an energy efficiency of the heat pump module in a heating process. Moreover, when the temperature is lower than ˜5° C., a heating effect of each module is poor and the system cannot provide a sufficient heat source. Conventional techniques do not consider that both rapid warm-up of an engine and heating a passenger compartment in winter are to be conducted in parallel. Also, when the temperature is low, a battery pack needs to be heated rapidly. In addition, a plurality of radiators need to be arranged in a front cabin of the vehicle, which is not suitable to optimizing the arrangement and reducing the weight of the front cabin of the vehicle. SUMMARY The present disclosure resolves at least one of the technical problems in the related art. The present disclosure provides a heat management system for a vehicle. The heat management system is highly integrated, easy to arrange, and may fully utilize the energy, thereby reducing energy loss. In addition, an air refrigerating heat exchanger does not need to be arranged in a front cabin of a vehicle, which optimizes the arrangement and reduces the weight of the front cabin of the vehicle. The present disclosure further provides a vehicle. The heat management system for a vehicle according to the present disclosure includes: a first heat exchanger having a first heat exchange passage and a second heat exchange passage; a second heat exchanger having a third heat exchange passage and a fourth heat exchange passage; a heat pump including a compressor, a heating pipeline, a first heat exchange pipeline, a refrigerating pipeline, a gas-liquid separator, a first switching pipeline, and a second heat exchange pipeline, a condenser disposed on the heating pipeline, an evaporator disposed on the refrigerating pipeline, the third heat exchange passage disposed on the first heat exchange pipeline, and the first heat exchange passage disposed on the second heat exchange pipeline; the compressor, the heating pipeline, the first heat exchange pipeline, the refrigerating pipeline, and the gas-liquid separator being connected sequentially, the refrigerating pipeline, the first switching pipeline, and the second heat exchange pipeline being connected in parallel, and the refrigerating pipeline, the first switching pipeline, and the second heat exchange pipeline being in communication between the first heat exchange pipeline and the gas-liquid separator; an electric assembly waterway; a radiator waterway, an electric assembly disposed on the electric assembly waterway, a radiator disposed on the radiator waterway, the radiator waterway being in communication with the electric assembly waterway, and the radiator waterway being in communication with the fourth heat exchange passage; and a heat exchange waterway, the second heat exchange passage disposed on the heat exchange waterway. According to the heat management system of the present disclosure, the first heat exchanger is connected to the battery module, so that heat generated by the battery may be released through the first heat exchanger, to prevent the battery from being damaged due to excessive heating. The heat pump module and the electric assembly module are simultaneously connected to the second heat exchanger, so that the heat pump module may release the heat through the electric assembly, and may also absorb heat through the electric assembly. In this way, integration is high and arrangement is easy. By adjusting a communication manner between the passages, the heat emitted by the engine module may heat the battery module. In this way, the battery module may have a better working environment, so that the battery module may work better, may make full use of energy, and reduce energy loss. In addition, the second heat exchanger is arranged. In this way, an air refrigerating heat exchanger does not need to be arranged/disposed in