Protection device for safe use of direct-current charging gun and method thereof
A DC charging and protection device technology, applied in charging stations, electric vehicle charging technology, electric vehicles, etc., can solve the problems of disconnecting the S1 switch, poor customer charging experience, roughness, etc., to ensure the safety of use and protect the use of the gun head. Number of times, the effect of extending the number of times of use
Inactive Publication Date: 2021-10-08
绿能慧充数字技术有限公司
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Problems solved by technology
[0004] The temperature protection of DC charging guns on the market is based on the internal temperature switch of the gun head. When the temperature exceeds the threshold value, disconnect the S1 switch to stop charging. This design is too rough. When the gun cable has not reached its service life, there is DC charging during charging. The temperature of the gun plug is too high, continuing to charge will disconnect the S1 switch and stop charging, resulting in poor charging experience for customers
Method used
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[0024] The present invention is further described below in conjunction with accompanying drawing:
[0025] The present invention is a protection method for DC charging gun life detection and high temperature safe use, the main technical points are as follows:
[0026] 1 When the vehicle is charging, the service life of the gun wire is calculated by the number of times the DC charging gun plug is effectively mated with the vehicle socket.
[0027] 1) The end user inserts the gun to charge, and the charging controller detects the status of the gun insertion. When the CC1 signal of the charging and insertion state changes from 6V to 4V, it is a valid insertion of the gun once, and the charging controller records the number of times of insertion of the gun.
[0028] 2) The charging controller uploads the number of valid insertions of the DC charging gun plug and socket to the host computer, and the host computer counts and accumulates all the times of plugging the gun. When the ac...
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The invention discloses a protection device for safe use of a direct-current charging gun and a method thereof. The protection device comprises a charging gun shell, a temperature acquisition module and a gun insertion frequency acquisition module, the temperature acquisition module and the gun insertion frequency acquisition module are both arranged in the charging gun shell; and the temperature acquisition module is arranged on a charging gun cable. The temperature of the direct-current charging gun plug is detected, and an over-temperature protection strategy is formulated, so that over-temperature protection can be performed on the direct-current charging gun plug when a vehicle is charged after the direct-current charging gun plug is used for more times, the direct-current charging gun plug, a vehicle socket and even the vehicle are prevented from being burnt due to overheat of the plug, and the use safety coefficient of the direct-current charging gun plug is improved. Meanwhile, the use frequency of the direct-current charging gun plug can be prolonged, and customer experience is improved.
Description
technical field [0001] The invention belongs to the technical field of connectors, and in particular relates to a protection device and method for safe use of a DC charging gun. Background technique [0002] With the popularization of electric vehicles and the development of electric vehicle charging technology, the requirements for the safety of electric vehicle charging are becoming more and more stringent. At present, the use of DC charging guns on the market is based on the service life and use time of the DC charger. At the same time, the charging gun is required to be replaced when the service life is reached, but the requirements for the charging gun are not actually operable. The DC charger has no effective life calculation for the DC charging gun itself and does not constrain the risk of safe use of the DC charging gun. [0003] The DC charging gun is sold to customers together with the DC charger. The normal requirement is that the DC charging gun has a warranty o...
Claims
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IPC IPC(8): B60L53/16B60L53/62
CPCB60L53/16B60L53/62B60L2260/44Y02T10/70Y02T10/7072Y02T90/12Y02T90/14
Inventor 孔克考高涛涛杨佩辉
Owner 绿能慧充数字技术有限公司