Charging circuit for electric vehicle
A charging circuit, electric vehicle technology, applied in electric vehicles, battery circuit devices, different battery charging directions, etc., can solve the problems of shortening the service life of the battery, intensifying the thermal reaction of the electrolyte, etc., to shorten the service life, avoid the overcharge state, Easy-to-use effects
Inactive Publication Date: 2016-12-07
SUZHOU MAILI ELECTRICAL APPLIANCE
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
The "pressure difference" has little effect on the battery when the "pressure difference" is large, and the battery that is often overcharged will also produce an intensified thermal reaction of the electrolyte until the battery is fully charged, which accelerates the scrapping of the battery and greatly shortens the battery life. service life
Method used
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[0017] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation to the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0018] The present invention provides a charging circuit for electric vehicles, such as figure 1 As shown, it includes a power input terminal, a rectifier filter circuit, a switch tube, a high-frequency rectifier filter circuit, and a power output terminal that are electrically connected in sequence. It also includes a protection circuit and a charging control circuit. The output terminal of the high-frequency rectifier filter circuit and the protection circuit The input termina...
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The invention discloses a charging circuit for an electric vehicle. The charging circuit comprises a power input end, a rectifying and filtering circuit, a switching tube, a high-frequency rectifying and filtering circuit and a power output end, all of which are sequentially and electrically connected. The charging circuit further comprises a protection circuit and a charging control circuit. The output end of the high-frequency rectifying and filtering circuit is connected with the input end of the protection circuit, the output end of the protection circuit is connected with the power output end, the output end of the high-frequency rectifying and filtering circuit is in signal connection with the charging control circuit, and the charging control circuit is in signal connection with the switching tube and the protection circuit. By means of the technical scheme, the charging control circuit and a charging display unit are additionally arranged in the charging circuit, therefore, the charging state of a charger can be visually shown, and use is convenient; in addition, the protection circuit is additionally arranged in the circuit, the circuit can be disconnected in time after a storage battery is charged, the situation that the storage battery is in an overcharge state frequently is avoided, and the service life of the storage battery is greatly shortened.
Description
Technical field [0001] The invention relates to the technical field of electric vehicle chargers, in particular to a charging circuit for electric vehicles. Background technique [0002] At present, when charging an electric vehicle, the charging status cannot be intuitively understood from the charger. The charger can only display two states: the charging is complete and the charging is complete. People must start the electric car to know how much the charge is completed. In life and actual operation, it has brought great inconvenience. [0003] In addition, because the charger cannot intuitively understand the amount of charge completed by the electric vehicle battery, and people cannot stand by the electric vehicle for a long time to observe whether the battery is fully charged, which causes the battery to often overcharge. "Overcharge" is a phenomenon that causes damage to the chemical and physical properties of the battery caused by overcharging the battery. When the “pres...
Claims
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Login to View More IPC IPC(8): H02J7/02
CPCH02J7/0029H02J7/00302H02J7/0047H02J7/027
Inventor 朱海东
Owner SUZHOU MAILI ELECTRICAL APPLIANCE