Electric vehicle thermal management system
First Claim
1. An electric vehicle thermal management system for heating a passenger cabin of an electric vehicle by means of the heat absorbed from a battery and/or an electric motor of the electric vehicle, the system comprising:
- a first cooling path, wherein cooling liquid is circulated in the first cooling path, and the cooling liquid passes through the battery and performs heat exchange with the battery;
a second cooling path, wherein the cooling liquid is circulated in the second cooling path, and the cooling liquid passes through the motor and performs heat exchange with the motor;
a third cooling path, wherein the third cooling path comprises an inlet and an outlet, and the inlet and the outlet are in fluid communication; and
a first radiator, wherein the first radiator provides a heat source to the passenger cabin by dissipating the heat absorbed by the cooling liquid, and the first radiator is selectively connected in one path of the first cooling path, the second cooling path or the third cooling path,wherein, the cooling liquid flows through the first cooling path and the cooling liquid flows through the second cooling path,wherein the cooling liquid from the first cooling path and the cooling liquid from the second cooling path converge at the inlet of the third cooling path, flow through the third cooling path and then divide at the outlet of the third cooling path to re-flow into the first cooling path and the second cooling path.
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Accused Products
Abstract
An electric vehicle thermal management system and an electric vehicle using the thermal management system, wherein a passenger cabin is heated by the heat dissipated from a battery and/or a motor, and the battery and the electric motor are connected in different cooling paths. Heat is supplied to the passenger cabin by using the heat absorbed by cooling liquid from the battery and/or the motor, so that the electric power of the electric vehicle can be effectively utilized to increase the endurance mileage of the electric vehicle.
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Citations
20 Claims
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1. An electric vehicle thermal management system for heating a passenger cabin of an electric vehicle by means of the heat absorbed from a battery and/or an electric motor of the electric vehicle, the system comprising:
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a first cooling path, wherein cooling liquid is circulated in the first cooling path, and the cooling liquid passes through the battery and performs heat exchange with the battery; a second cooling path, wherein the cooling liquid is circulated in the second cooling path, and the cooling liquid passes through the motor and performs heat exchange with the motor; a third cooling path, wherein the third cooling path comprises an inlet and an outlet, and the inlet and the outlet are in fluid communication; and a first radiator, wherein the first radiator provides a heat source to the passenger cabin by dissipating the heat absorbed by the cooling liquid, and the first radiator is selectively connected in one path of the first cooling path, the second cooling path or the third cooling path, wherein, the cooling liquid flows through the first cooling path and the cooling liquid flows through the second cooling path, wherein the cooling liquid from the first cooling path and the cooling liquid from the second cooling path converge at the inlet of the third cooling path, flow through the third cooling path and then divide at the outlet of the third cooling path to re-flow into the first cooling path and the second cooling path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An electric vehicle, comprising:
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a passenger cabin; a battery; an electric drive motor; and a thermal management system configured to heat the passenger cabin by means of the heat absorbed from at least one of the battery or the electric motor, the thermal management system including; a first cooling path, wherein a cooling liquid is circulated in the first cooling path, and the cooling liquid passes through the battery and performs heat exchange with the battery; a second cooling path, wherein the cooling liquid is circulated in the second cooling path, and the cooling liquid passes through the motor and performs heat exchange with the motor; a third cooling path, wherein the third cooling path comprises an inlet and an outlet, and the inlet and the outlet are in fluid communication; and a first radiator, wherein the first radiator provides a heat source to the passenger cabin by dissipating the heat absorbed by the cooling liquid from the first cooling path and/or the cooling liquid from the second cooling path, and the first radiator is selectively connected in one path of the first cooling path, the second cooling path or the third cooling path, wherein the cooling liquid from the first cooling path and the cooling liquid from the second cooling path converge at the inlet of the third cooling path, flow through the third cooling path and then divide at the outlet of the third cooling path to re-flow into the first cooling path and the second cooling path. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification