Vehicle-mounted charger and working method
A car charger and inductance technology, which is applied in the direction of electric vehicle charging technology, charging stations, electric vehicles, etc., can solve the problems of large volume and weight, increase the weight of new energy vehicles and production costs, etc., to reduce production costs, reduce electrical The effect of the number of components
Inactive Publication Date: 2020-10-09
LG ELECTRONICS CHINA RANDD CENT SHANGHAI CO LTD
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[0003] like figure 1 As shown in the circuit structure diagram of the existing on-board charger for new energy vehicles, in the prior art, the on-board charger is an independent device, usually with a two-stage structure, the first-stage PFC rectifier circuit, and the second-stage DCDC circuit. There are many electrical components, and the volume and weight are large, which will increase the weight and production cost of the new energy vehicle itself
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[0018] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following describes the embodiments of the present invention in further detail with reference to the drawings. Here, the exemplary embodiments of the present invention and the description thereof are used to explain the present invention, but not as a limitation to the present invention.
[0019] Such as figure 2 A schematic diagram of an on-vehicle device of a vehicle-mounted charger in an embodiment of the present invention and image 3 As shown in a schematic diagram of a charging accessory of an on-board charger in an embodiment of the present invention, an embodiment of the present invention provides an on-board charger that realizes the charging function by reusing an existing motor drive device as the main hardware of the on-board charger, including :
[0020] Motor drive device, charging accessories, motor, switch circuit, terminal;
[0021] T...
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The invention provides a vehicle-mounted charger and a working method. The vehicle-mounted charger comprises a motor driving device, a charging accessory, a motor, a switching circuit and a terminal,the motor driving device is connected with the motor through the switching circuit; the motor driving device is connected with the terminal; when the switching circuit is closed and the charging accessory is not connected with the terminal, the motor driving device drives the motor through the switching circuit; and when the switching circuit is disconnected and the charging accessory is connectedwith the terminal, the power grid charges the vehicle through the charging accessory and the motor driving device. According to the invention, the existing motor driving device of the new energy automobile is reused; and meanwhile, the form of the charging accessories is adopted, the charging accessories are installed on the new energy automobile in the charging state, the charging accessories are unloaded from the new energy automobile when charging is not conducted, the number of electrical elements of the new energy automobile is reduced, and the production cost, size and weight of the newenergy automobile are reduced.
Description
Technical field [0001] The invention relates to the technical field of on-board charging of new energy vehicles, in particular to a vehicle charger and a working method. Background technique [0002] At present, most of the on-board chargers of new energy vehicles are independent devices, which have a high cost and occupy a certain volume and weight of the vehicle. [0003] Such as figure 1 As shown in the circuit structure diagram of the on-board charger of the existing new energy vehicles, in the prior art, the on-board charger is an independent device, usually a two-stage structure, the first-stage PFC rectifier circuit and the second-stage DCDC circuit. More electrical components, larger volume and weight, will increase the weight and production cost of new energy vehicles. Summary of the invention [0004] The present invention provides a vehicle-mounted charger, which realizes the charging function as the main hardware of the vehicle-mounted charger by reusing an existing mot...
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IPC IPC(8): B60L53/24H02M7/797
CPCH02M7/797Y02T10/70Y02T10/7072Y02T90/14
Inventor 周灵兵
Owner LG ELECTRONICS CHINA RANDD CENT SHANGHAI CO LTD