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Liquid-cooling high-current charging system of electric automobile and control method thereof

A charging system, a technology for electric vehicles, applied in electric vehicle charging technology, electric vehicles, charging stations, etc., can solve the problems of increased volume and weight of charging connection devices, unsafe charging process, and inability to increase charging power, etc. The effect of resource usage, increasing charging current, and increasing charging power

Pending Publication Date: 2020-04-17
SICHUAN YONGGUI SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the voltage platform of electric vehicles cannot increase the charging power by increasing the charging voltage due to various factors, and can only increase the charging power by increasing the charging current.
[0003] When the charging current is greatly increased to hundreds of amperes, a thicker conductor will be required to carry the current, which will greatly increase the volume and weight of the charging connection device, making the charging operation difficult; The law charging connection also generates a lot of heat, making the charging process unsafe

Method used

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  • Liquid-cooling high-current charging system of electric automobile and control method thereof
  • Liquid-cooling high-current charging system of electric automobile and control method thereof
  • Liquid-cooling high-current charging system of electric automobile and control method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Such as figure 1 As shown, a liquid-cooled high-current charging system for electric vehicles includes a charging connector 1, a cable fixing and protection device 7, a cable body 8, a charging pile 11, and a charging pile power module 10; both ends of the cable body 8 pass through The cable fixing and protection device 7 is respectively connected with the charging electrical connector 1 and the charging pile 11, and the charging pile power module 10 is installed in the charging pile 11.

[0045] Terminals 9 are installed at both ends of the charging pile power module 10, and a liquid return storage device 16, a liquid circulation pump 17, a radiator 18, and a liquid outflow storage device 20 connected in sequence are installed in the charging pile 11. A cooling fluid circulation channel 901 is reserved in the terminal 9, a power contact 3 is installed in the charging connector 1, and a liquid-cooled cable connection device 5 with a cooling fluid circulation cavity 501 is i...

Embodiment 2

[0057] A control method of a liquid-cooled high-current charging system for electric vehicles is implemented based on the above-mentioned liquid-cooled high-current charging system for electric vehicles, such as figure 2 As shown, it specifically includes the following steps:

[0058] Step 1: The control unit obtains and saves the temperature values ​​returned by the first temperature monitoring device, the second temperature monitoring device, the third temperature monitoring device, the fourth temperature monitoring device, and the fifth temperature monitoring device, and the flow rate returned by the flowmeter Value, the real-time speed PN1 of the liquid circulating pump, and the real-time speed FN1 of the fan of the radiator, and the maximum operating temperature T6 allowed by the system, the preset starting speed PN0 and the maximum speed PN2 of the liquid circulating pump are also stored in the control unit. The preset start-up speed FN0 and the maximum speed FN2 of the fa...

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Abstract

The invention discloses a liquid-cooled high-current charging system of an electric vehicle. The liquid-cooled high-current charging system comprises a charging connector, a cable fixing and protecting device, a cable body, a charging pile and a charging pile power supply module. Two ends of the cable body are respectively connected with the charging connector and the charging pile through the cable fixing and protecting device, and the charging pile power supply module is installed in the charging pile. The liquid-cooling large-current charging system is provided with a corresponding liquid cooling device for carrying out circulating cooling on easily-heated parts in the charging process, so that heating during charging is greatly reduced and the safety performance is improved; the numberof required conductors is small; the charging current can be greatly improved to improve the charging power under the working condition that the number of the required conductors is the same as thatof the conductors in the prior art, or the number of resources of the conductors is greatly reduced, the use of the resources is reduced, and the operation convenience of a client can be improved under the working condition that the charging current is the same as the prior art.

Description

Technical field [0001] The invention relates to the technical field of electrical connection of electric vehicles, in particular to a liquid-cooled high-current charging system for electric vehicles and a control method thereof. Background technique [0002] With the continuous development of the new energy electric vehicle industry, the cruising range of electric vehicles is increasing, and the capacity of power batteries is increasing. It is necessary to increase the charging power to achieve fast charging to solve the problem of charging speed. However, the current voltage platform of electric vehicles cannot increase the charging power by increasing the charging voltage due to various factors, and can only increase the charging power by increasing the charging current. [0003] When the charging current is greatly increased to hundreds of amperes, a thicker conductor will be required to carry the current, which will greatly increase the volume and weight of the charging connect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/302B60L53/16B60L53/18B60L53/60
CPCB60L53/302B60L53/16B60L53/18B60L53/60Y02T10/70Y02T10/7072Y02T90/14Y02T90/12
Inventor 程襄东郭亮杨尚芳向晓东李统刚喻通李运明
Owner SICHUAN YONGGUI SCI & TECH CO LTD
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