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Electric vehicle heat radiation system and method

A technology for electric vehicles and heat dissipation systems, which is applied to electrical components, structural parts of electrical equipment, cooling/ventilation/heating transformation, etc. It can solve the problems of increasing pump water volume, reducing the temperature of power devices, and errors in the judgment of vehicle controllers, etc. problem, to achieve the effect of improving heat dissipation efficiency and detection accuracy

Inactive Publication Date: 2016-11-23
FJ MOTOR GRP YUDO NEW ENERGY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Nowadays, it is mainly by collecting the casing temperature of the power device to confirm the heat generation of the power device, and sending the information to the vehicle controller to adjust the power of the water pump, increase the pump water volume, and reduce the temperature of the power device. , there is a deviation between the shell temperature and the actual water temperature due to heat conduction problems, resulting in errors in the judgment of the vehicle controller

Method used

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  • Electric vehicle heat radiation system and method
  • Electric vehicle heat radiation system and method

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Embodiment Construction

[0024] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0025] see figure 1 In this embodiment, a cooling system for an electric vehicle includes a radiator, a first water pump 130 , a temperature sensor and a controller 101 .

[0026] The radiator includes a total radiator and a power device radiator 120, one end of the total radiator is connected to the water outlet of the first water pump 130 through a water pipe, and the other end of the total radiator is connected to the power device radiator 120 through a water pipe The water inlet end, the total radiator includes an upper water chamber 111, a lower water chamber 113 and a radiator core 112; the radiator core 112 is arranged between the upper water chamber 111 and the lower water chamber 113, and the radiator core 112 includes Water pipe...

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Abstract

The invention discloses an electric vehicle heat radiation system, which comprises a radiator, a first pump, a temperature sensor and a controller. The inlet water temperature and the outlet water temperature of the radiator of a power device are detected by an inlet water temperature sensor and an outlet water temperature sensor. A temperature difference is obtained by comparing the inlet water temperature and the outlet water temperature. The temperature difference is compared with a preset temperature difference, and the heat radiation effect of the radiator is judged according to a final comparison result and a judgment result is made more accurate. Simultaneously the pumping water amount of the first pump is controlled by comparing the temperature difference with the preset temperature difference, and the heat radiation efficiency of the radiator is improved.

Description

technical field [0001] The invention relates to the field of heat dissipation of electric vehicles, in particular to a water cooling system and method for electric vehicles. Background technique [0002] The function of the car cooling system is to keep the car within the proper temperature range under all operating conditions. The cooling system of the car is divided into air-cooled and water-cooled. The air-cooled system is called the air-cooled system, and the water-cooled system is called the coolant-cooled system. Usually the water cooling system is composed of water pump, radiator, cooling fan, thermostat and other accessories. Nowadays, it is mainly by collecting the casing temperature of the power device to confirm the heat generation of the power device, and sending the information to the vehicle controller to adjust the power of the water pump, increase the pump water volume, and reduce the temperature of the power device. , There is a deviation between the shel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20
CPCH05K7/20872
Inventor 胡庆魁刘心文赵明
Owner FJ MOTOR GRP YUDO NEW ENERGY AUTOMOBILE CO LTD
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