Automatic switching device for auxiliary power supply of charging pile
An auxiliary power supply and automatic switching technology, applied in charging stations, electric vehicles, electric vehicle charging technology, etc., can solve problems such as economic loss of car owners, waste of resources, and inability to serve passenger car charging piles, and achieve improved satisfaction and equipment. Small size, small investment effect
Pending Publication Date: 2022-01-07
STATE GRID SHANDONG ELECTRIC POWER
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Problems solved by technology
[0002] At present, electric vehicles are divided into commercial vehicles and passenger vehicles. The auxiliary power voltage levels of the two are not uniform, which are 24V and 12V respectively. The auxiliary power level provided by the charging pile is a fixed mode, which cannot meet the charging needs of the above vehicles at the same time.
[0003] The owner of a passenger car (auxiliary power supply 12V) mistakenly selects a commercial vehicle (auxiliary power supply 24V) charging pile when charging, causing the vehicle to fail to charge and the BMS (battery management system) to be damaged
Cause economic loss to car owners, causing complaints and disputes
Charging piles for commercial vehicles cannot serve passenger cars, and charging piles for passenger cars cannot serve commercial vehicles. The construction cost of charging stations is high, resulting in waste of resources
Method used
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[0028] The accompanying drawings show the best embodiment of the charging pile auxiliary power automatic switching device, and the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0029] The charging pile auxiliary power automatic switching device includes a voltage detection module, a 24V power switch, and a 12V power switch, and the 24V power switch and the 12V power switch are respectively connected to the voltage detection module.
[0030] The voltage detection module is electrically connected to the main board of the charging device. The voltage detection module is connected with the vehicle BMS through BMS communication. After the device is initialized, the charging gun of the charging pile is connected to the electric vehicle, and the main board of the charging pile closes the auxiliary power relay. The device detects that the auxiliary power relay of the charging pile is closed, and provides 12V power to the ...
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The invention relates to an automatic switching device for an auxiliary power supply of a charging pile. The automatic switching device comprises a voltage detection module, a 24V power switch and a 12V power switch, and the 24V power switch and the 12V power switch are respectively connected with the voltage detection module. The voltage detection module is electrically connected with a mainboard of a charging device. The voltage detection module is connected with a vehicle BMS through BMS communication. The voltage level of the vehicle auxiliary power supply can be automatically detected, and an automatic switching function is completed. Modularized assembly is achieved, stability and reliability are achieved, switching sensitivity is high, and time delay is avoided.
Description
technical field [0001] The invention belongs to the technical field of electric vehicle charging, and in particular relates to an auxiliary power supply automatic switching device for a charging pile. Background technique [0002] At present, electric vehicles are divided into commercial vehicles and passenger vehicles. The auxiliary power voltage levels of the two are not uniform, which are 24V and 12V respectively. The auxiliary power level provided by the charging pile is a fixed mode, which cannot meet the charging needs of the above vehicles at the same time. [0003] The owner of a passenger car (auxiliary power supply 12V) mistakenly selects a commercial vehicle (auxiliary power supply 24V) charging pile when charging, resulting in the failure of the vehicle to charge and damage to the BMS (battery management system). Cause economic loss to car owners, cause complaints and disputes. Commercial vehicle charging piles cannot serve passenger cars, and passenger car char...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B60L53/62B60L53/66
CPCB60L53/62B60L53/66Y02T10/70Y02T10/7072Y02T90/12Y02T90/16
Inventor 徐明珠赵洪刚战春翔张永新许凯
Owner STATE GRID SHANDONG ELECTRIC POWER