A charging pile applied to new energy vehicles
A technology for new energy vehicles and charging piles, applied in the direction of collectors, electric vehicles, electrical components, etc., can solve the problems of high control cost and battery overcharge, and achieve the effect of avoiding charging and avoiding overcharging.
Active Publication Date: 2016-12-07
陕西帝亚新能源汽车有限公司
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide a charging pile applied to new energy vehicles to solve the problems of battery overcharging and high control costs
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[0011] 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.
[0012] see figure 1 , the present invention provides a charging pile applied to new energy vehicles, 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, a first charging negative terminal and a second charging terminal. One control terminal, the transformer circuit is used to connect with the power grid, the positive output terminal of the transformer circuit is connected to the output common terminal of the relay and the output positive pole of the optocoupler, the output normally closed terminal of the relay is connected to the first charging positive terminal, and the output of the relay The normally open end is connected...
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The invention provides a charging pile for a new energy vehicle. The charging pile comprises a variable-voltage circuit, a charging plug, an optocoupler and a relay, wherein the charging plug comprises a first charging positive end, a first charging negative end and a first control end, the variable-voltage circuit is connected with a power grid, the positive output end of a charging circuit is connected with the output common end of the relay and the output positive electrode of the optocoupler, the output normally-closed end of the relay is connected with a first charging positive end, the output normally-open end of the relay is connected with the input end of the relay and the output cathode of the optocoupler, the first control end is connected with the positive input end of the optocoupler, and the other input end of the relay, the negative output end of the variable-voltage circuit and the negative input end of the optocoupler are connected with the first charging negative end. Through the relay, after a battery is fully charged, the connection of the variable-voltage circuit and the charging circuit is cut off, so that the charging circuit is completely disconnected, the battery can be prevented from being charged after being fully charged, and the overcharging situation can be avoided.
Description
technical field [0001] The invention relates to the field of charging piles, in particular to a charging pile applied to new energy vehicles. 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 interference, ...
Claims
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IPC IPC(8): H02J7/02
Inventor 林碧琴
Owner 陕西帝亚新能源汽车有限公司