Cooling system for electric vehicle

A cooling system and electric vehicle technology, which is applied to the arrangement of the cooling combination of the power unit, the power unit, and vehicle components, etc., can solve the problems of the complex structure of the cooling system, and achieve the effects of simplifying the structure, reducing the weight, and reducing the installation space.

Active Publication Date: 2012-12-12
BEIQI FOTON MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a cooling system for electric vehicles, which is used to solve the problem of complex structure of the current cooling system of electric vehicles, so that the structure of the cooling system of electric vehicles is simple, and the installation space is small, thereby reducing the weight of the electric vehicle body

Method used

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  • Cooling system for electric vehicle
  • Cooling system for electric vehicle
  • Cooling system for electric vehicle

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Embodiment 1

[0026] image 3 It is a structural schematic diagram of Embodiment 1 of the electric vehicle cooling system of the present invention. The main feature of the electric vehicle cooling system in this embodiment is that it integrates the current motor cooling system and the battery pack cooling system in the electric motor to form an integrated electric vehicle cooling system. The system includes the motor cooling circuit and the battery pack cooling circuit; and based on the fact that the optimal operating temperature ranges of the motor and the battery pack are basically the same, the motor cooling circuit and the battery pack cooling circuit share a heat sink, which is set in the motor cooling On the cooling pipeline shared by the circuit and the battery pack cooling circuit.

[0027] In addition, the cooling medium in this embodiment can use cooling liquid, such as water; the components of the electric vehicle power system and power supply system can be cooled by means of coo...

Embodiment 2

[0033] Figure 4 It is a schematic structural diagram of Embodiment 2 of the electric vehicle cooling system of the present invention. The electric vehicle cooling system of this embodiment is further optimized on the basis of the structure of Embodiment 1. The main difference from Embodiment 1 is that the motor cooling circuit and the battery The group cooling circuits also share a circulating power mechanism, such as a water pump, on the basis of sharing a set of cooling devices. The system weight is further reduced by reducing the number of water pumps.

[0034] Such as Figure 4 As shown, the electric vehicle cooling system of this embodiment is image 3 On the basis of the cooling system structure of the electric vehicle shown, only the motor 22 is provided on the first cooling pipeline branch 27, and only the battery pack 23 is provided on the second cooling pipeline branch 28. A shared water pump 31 is also added to the shared cooling pipeline 26 . On the side of th...

Embodiment 3

[0039] Figure 5 It is a schematic structural diagram of Embodiment 3 of the electric vehicle cooling system of the present invention. The electric vehicle cooling system of this embodiment is based on the structure of Embodiment 1, and a battery pack heating circuit is further provided. Its main technical solution is that, according to the principle that the heat generated by the motor in the electric vehicle is much greater than the heat generated by the battery pack, the heat generated by the motor can be used to heat the battery pack, so that the heat generated by the motor can be exchanged with the cooling liquid. passed to the battery pack.

[0040] Such as Figure 5 As shown, the electric vehicle cooling system of this embodiment adds a third cooling pipeline branch 33 on the basis of the structure of the first embodiment. The third cooling pipeline branch 33 may be provided with a third water pump 34, and one end of the third cooling pipeline branch 33 is connected t...

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Abstract

The invention provides a cooling system for an electric vehicle, which comprises a motor cooling loop and a battery pack cooling loop, wherein the motor cooling loop and the battery pack cooling loop comprise a shared cooling pipeline; and a set of shared heat dissipating devices is arranged on the shared cooling pipeline. The cooling system for an electric vehicle simplifies the structure of thecooling system, reduces the installation space occupied by the cooling system and can lighten the weight of an electric vehicle body by sharing a set of heat dissipating devices by the motor cooling loop and the battery pack cooling loop.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of electric vehicle construction, and in particular, to an electric vehicle cooling system. Background technique [0002] With the increasingly prominent global energy and environmental issues, countries are now actively developing electric vehicles. The power supply system of an electric vehicle includes a plurality of components such as a battery pack, and the power supply system provides power for a power system such as a motor to drive the electric vehicle. With the development of electric vehicles, the heat dissipation of the components of the power system and power supply system in electric vehicles is also an important issue that needs to be studied and solved. [0003] In the current cooling system of electric vehicles, the motor cooling system and the battery pack cooling system are two separate and independent cooling systems, and are correspondingly provided with two sets of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K11/00B60K11/02
Inventor 黄国昌李金玲周定芳李乐吕杨王溪芹王少惠高凯
Owner BEIQI FOTON MOTOR CO LTD
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