A new energy vehicle system with charging protection
A new energy vehicle, charging protection technology, applied to electric vehicles, current collectors, electrical components, etc., can solve the problems of battery overcharging and high control costs, and achieve the effect of avoiding overcharging and avoiding charging
Active Publication Date: 2016-08-31
GUANGZHOU XIAOPENG MOTORS TECH CO LTD
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- Description
- Claims
- Application Information
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a new energy vehicle system with charging protection to solve the problems of battery overcharging and high control costs
Method used
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[0012] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.
[0013] see figure 1 , the present invention provides a new energy vehicle system with charging protection, including a charging pile and a new energy vehicle, the charging pile includes a transformer circuit, a charging plug, an optocoupler U1 and a relay LS1, and the charging plug includes a first charging positive terminal , the first charging negative terminal and the first control terminal, the transformer circuit is used to connect to the power grid, the positive output terminal of the transformer circuit is connected to the output common terminal of the relay and the positive output terminal of the optocoupler, the output normally closed terminal of the relay is connected to the first The charging positive terminal is connected, the ...
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The invention provides a new energy vehicle system with a function of charge protection, and the system comprises a charging pile and a new energy vehicle. The charging pile comprises a voltage transformation circuit, a charging plug, an optical coupler, and a relay. The charging plug comprises a first charging positive end, a first charging negative end, and a first control end. The voltage transformation circuit is connected with a power grid, and the positive output end of the voltage transformation circuit is connected with the output public end of the relay and the output positive electrode of the optical coupler. The output normally-closed end of the relay is connected with the first charging positive end, and the output normally-opened end of the relay is connected with one input end of the relay and the output negative electrode of the optical coupler. The first control end is connected with the positive input end of the optical coupler. The other end of the relay, the negative output end of the voltage transformation circuit and the negative input end of the optical coupler are connected with the first charging negative end. Through the relay, the connection of the voltage transformation circuit with a charging circuit is cut off after a battery is charged fully, thereby enabling the charging circuit to be cut off completely, and avoiding overcharging.
Description
technical field [0001] The invention relates to the field of new energy vehicles, in particular to a new energy vehicle system with charging protection. Background technique [0002] New energy vehicles are receiving more and more attention from the country because of environmental protection and energy saving. Electric vehicles account for a very large proportion of new energy vehicles. The body of an electric vehicle contains a battery pack for driving the wheels. Existing electric vehicles have a circuit to prevent overcharging, but the existing circuit is fully charged, the charging circuit does not output, after a period of time, the battery voltage drops slightly, the charging circuit will recharge, This creates a situation of floating charging, which can easily lead to a reduction in the life of the battery. Others use microcontrollers for intelligent control, but there are reliability problems in microcontrollers. Microcontrollers may fail due to electromagnetic int...
Claims
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IPC IPC(8): H02J7/02B60L11/18
CPCY02T10/70
Inventor 林碧琴
Owner GUANGZHOU XIAOPENG MOTORS TECH CO LTD