A vehicle-mounted bidirectional charger
A charger and vehicle-mounted technology, applied in electric vehicle charging technology, charging stations, collectors, etc., can solve problems such as low battery utilization and grid frequency fluctuations, and achieve reduced usage, reduced grid frequency fluctuations, and optimized circuits structure effect
Inactive Publication Date: 2021-06-08
CHENGDU UNIV OF INFORMATION TECH
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Problems solved by technology
[0005] The purpose of the present invention is to provide a vehicle-mounted two-way charger, which mainly solves the problems of low battery utilization rate of the existing vehicle-mounted charger, and the frequency fluctuation of the power grid caused by the connection and separation of the charger.
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[0035] Such as Figure 1-11 As shown, a vehicle-mounted bidirectional charger disclosed in the present invention includes a single-chip microcomputer control circuit, a power switching circuit and a charging circuit connected to the single-chip control circuit, and a high-frequency inverter circuit connected to the charging circuit; wherein, the power switching circuit Also connected to the charging circuit.
[0036] The single-chip control circuit includes a single-chip control chip, and a current collection circuit and a voltage collection circuit connected with the single-chip control chip; wherein, the single-chip control chip is connected with a power switching circuit.
[0037]The charging circuit includes a rectification and filtering circuit connected to the external power grid, a half-bridge charging circuit connected to the rectification and filtering circuit, and a charging drive circuit connected to the half-bridge charging circuit; wherein, the half-bridge chargin...
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The invention discloses a vehicle-mounted bidirectional charger, which mainly solves the problems of low battery utilization rate of the existing vehicle-mounted charger, and frequency fluctuation of the power grid caused by the connection and disconnection of the charger and network replacement. The charger includes a single-chip microcomputer control circuit, a power switching circuit and a charging circuit connected with the single-chip control circuit, and a high-frequency inverter circuit connected with the charging circuit; wherein, the power switching circuit is also connected with the charging circuit. Through the above design, while ensuring the efficiency, the charger of the present invention can effectively optimize the circuit structure by using the drive circuit instead of the hardware circuit, reduce device loss, and thereby reduce the cost. At the same time, by setting the power switching circuit, the charger is more stable in the process of grid charging and load power supply switching, and reduces grid frequency fluctuations. Therefore, it has high use value and promotion value.
Description
technical field [0001] The invention relates to the technical field of chargers, in particular to a vehicle-mounted bidirectional charger. Background technique [0002] Electric vehicle (Electronic Vehicle, EV), as a representative of new terms such as energy saving, innovation, and environmental protection, has quickly entered everyone's field of vision and achieved rapid development. As the core component of electric vehicles, the charger's structural design and performance improvement have become a hot topic of research. [0003] According to the different installation positions, it can be divided into two categories: vehicle-mounted and non-vehicle-mounted. Vehicle-mounted charger refers to the charger fixedly installed on the electric vehicle, which has the advantages of small scale, fast heat dissipation, light weight, etc., and most of them are used in conventional charging. The on-board charger is mainly used for two-way energy exchange between electric vehicles an...
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IPC IPC(8): B60L55/00B60L53/20B60L53/00H02J3/32H02J3/24
CPCB60L53/00B60L53/20B60L55/00H02J3/24H02J3/32Y02T10/70Y02T10/7072Y02T10/72Y02T90/14
Inventor 张江林庄慧敏邓昌建吴磊樊昌元文斌谢晓娜李代伟唐必秀黄宗莉
Owner CHENGDU UNIV OF INFORMATION TECH