Double-gun power distribution direct current charger protective device

A protection device and charger technology, which is applied in the direction of circuit devices, battery circuit devices, collectors, etc., can solve the problems of parallel connection of batteries, high power consumption of diodes, damage to cars or equipment, etc., to prevent mutual discharge, circuit elements The effect of less components and cost reduction
CN104993531AActive Publication Date: 2015-10-21SHENZHEN CLOU ELECTRONICS +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHENZHEN CLOU ELECTRONICS
Publication Date
2015-10-21

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Abstract

The invention discloses a double-gun power distribution direct current charger protective device, including a first rectification module, a second rectification module, a first charging gun, a second charging gun, a double charging power distribution loop and a control circuit which is used for controlling the double charging power distribution loop. The control circuit is connected between a power end and the ground. An output end of the first rectification module is connected with a first input end of the double charging power distribution loop. An output end of the second rectification module is connected with a second input end of the double charging power distribution loop. The invention uses relay contacts in the double charging power distribution loop and the control circuit for interlocking, so that a contactor is prevented from generating maloperation, and a phenomenon of mutual discharging between batteries is effectively prevented. According to the invention, the structure is simple, the circuit components are a few, the reliability is high, the cost can be effectively reduced, and large scale production and application is feasible. The invention can be widely applied to the automobile charging field.
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Description

technical field

[0001] The invention relates to a charging protection device, in particular to a dual-gun power distribution DC charger protection device. Background technique

[0002] During the simultaneous charging of two vehicles by the DC power distribution double-gun charger, when the two contactors of power distribution malfunction, the batteries of the two vehicles will be connected in parallel, causing the battery with high voltage to discharge to the battery with low voltage. Large and can easily cause damage to the car or equipment. In order to prevent such accidents, two high-power diodes are currently connected in series on the two charging circuits. However, due to the large power consumption of the series connected diodes, the heat is serious, the cost is high, and the breakdown cannot be detected in time, which is easy to cause damage. The batteries of the two cars are connected in parallel, which poses a major safety hazard. Contents of the invention [...

Claims

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