A bidirectional on-board charger and electric vehicle
A technology of on-board chargers and resistors, which is applied in electric vehicles, electrical devices, vehicle components, etc., can solve problems such as fire hazards, potential safety hazards of bidirectional on-board charger inverter output, and human-made electric shocks, so as to prevent electric shocks and achieve high integration High, simple circuit effect
Active Publication Date: 2019-10-18
BEIJING ELECTRIC VEHICLE
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Problems solved by technology
[0004] In the embodiment of the present invention, a bi-directional on-board charger and an electric vehicle are provided to solve the problem that when the bi-directional on-board charger outputs high voltage through the external inverter, if leakage current is generated without timely detection and prevention, it may cause artificial electric shock Accidents such as accidents and fires have brought potential safety hazards to the inverter output of the two-way on-board charger.
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[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0039] An embodiment of the present invention provides a two-way on-board charger, combining figure 1 , figure 2 shown, including:
[0040] It is used to connect the connection terminal and the connection circuit of the load.
[0041] The leakage current sensor U1 is connected to the connection circuit.
[0042] The sampling unit is electrically connected to the output terminal of the leakage current sensor U1, and is used for collecting the output...
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The invention provides a two-way vehicle-mounted charger and an electric vehicle. The two-way vehicle-mounted charger comprises a connecting end and a connecting circuit, a leakage current sensor, a sampling unit and a first control unit, wherein the connecting end and the connecting circuit are used for accessing loads; the leakage current sensor is connected on the connecting circuit; the sampling unit is electrically connected with the output end of the leakage current sensor and is used for collecting the output voltage of the output end of the leakage current sensor; and the first control unit is electrically connected with the sampling unit and is used for performing shutdown control on the complete machine when the leakage current sensor is in a electric leakage detection mode and the output voltage of the output end of the leakage current sensor, collected by the sampling unit, is greater than a set threshold, thereby realizing electric leakage protection and preventing the occurrence of electric shock.
Description
technical field [0001] The invention relates to the field of automobile circuits, in particular to a bidirectional vehicle charger and an electric automobile. Background technique [0002] With the development of social economy, automobiles are becoming more and more popular, and they are already entering thousands of households, becoming an indispensable means of transportation for daily travel. And with the research and development and popularization of energy-saving and environment-friendly vehicles, electric vehicles have gradually become a new trend in automobile production and purchase. [0003] At this stage, the on-board chargers generally equipped with electric vehicles on the market are unidirectional, and are only used for charging, and cannot realize inverters. However, at present and in the future, more and more vehicles will be equipped with two-way chargers to realize pure electric The use of car charging, and the external inverter output AC high voltage, the...
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IPC IPC(8): B60L3/00H02H3/32
Inventor 陈泓泽李志猛鲁卫申肖胜然
Owner BEIJING ELECTRIC VEHICLE