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An electric vehicle charger

A technology for chargers and electric vehicles, applied in electric vehicles, current collectors, battery circuit devices, etc., can solve the problems of high voltage sparks emitted by relay contacts, easy to burn out, deformation of battery charging drums, and complicated circuit structures. Achieve the effect of low cost, few components and simple circuit structure

Active Publication Date: 2020-08-04
王学堂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects that the existing technology cannot prevent the charger and the battery from being deformed and scrapped when the technical parameters of the charger and battery deviate from the normal set value, and the fire accident caused by the charger igniting and burning, and the circuit structure adopted is more complicated than the traditional one. , There are many relay originals, high cost, high power consumption, and the relay contacts have the disadvantages of erupting high-voltage electric sparks and being easy to burn out. The present invention provides a charger, which not only has various functions of the prior art, It also has the ability to effectively prevent the battery drum from being deformed and scrapped when the technical parameters of the charger and the battery deviate from the normal set value, and the fire accident caused by the charger igniting and burning. The circuit structure of the invention is simple, the components are few, and the cost is low. , low power consumption, no high-voltage electric spark eruption when the AC high-voltage power is cut off, no manual start button, it has a battery charger with a safe and energy-saving automatic control system

Method used

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  • An electric vehicle charger
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Embodiment Construction

[0015] exist figure 1 figure 2 Middle; the non-contact automatic switch (6) is composed of a resistor R, an optocoupler (UO), a bidirectional thyristor or a bidirectional direct light-controlled thyristor (Vs); the thyristor (VS) is connected in series with the AC mains (AC) and the AC input (2), the control terminal is electrically connected to the output terminal of the instruction control unit (7) 555 chip or the CMOS4069 chip through a resistor R and an optocoupler (UO);

[0016] The instruction control unit (7) is composed of a 555 chip or a CMOS4069 chip, a resistor R, a capacitor c, and a diode D; the input end of the 555 chip is electrically connected to the floating charge unit (3) through the diode D, and the output end is connected through the resistor R, an optocoupler ( U0) is electrically connected to the control end of the non-contact switch (6) bidirectional thyristor (VS);

[0017] The 6V voltage stabilizing unit (8) is composed of a resistor R and a voltag...

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Abstract

The invention discloses a charger having an energy-saving automatic control system and a safe automatic tracking monitoring system. The electric car charger comprises a charger main circuit board and also comprises an energy-saving automatic control system consisting of a contactless automatic switch, an instruction control unit, a 6V voltage stabilization unit and a misconnection proofing unit, and a safety automatic tracking monitoring system. The electric car charger achieves various functions in the prior art, and effectively prevents phenomena that a storage battery is bulged and deformed during charging, and a charger is burned out to cause a fire accident when the charger and the storage battery are charged. The electric vehicle charger is simple in circuit structure, few in components, low in cost, small in power consumption an does not need to start up a button by a hand, adopts a contactless automatic switch and prevents potential safety hazards that a relay contact is burned out and a fire is caused when an alternating current is cut off in the prior art. Electric power resources are effectively saved, the property loss is reduced, and the service lives of the charger and the storage battery are greatly prolonged. The electric car charger is an ideal product expected by the user, and is very suitable for popularization and application.

Description

technical field [0001] The invention relates to a battery charging device, in particular to a battery charger with an energy-saving full-automatic control system and a safety automatic tracking monitoring system. Background technique [0002] At present, China ranks first in the world in the manufacture and use of electric vehicles, especially electric two-wheeled tricycles, which have as many as 150 million. Most of the power sources of electric vehicles use lead-acid batteries, and their usage is quite large. However, in the given On the issue of battery charging of electric vehicles, there are constant news reports of fire accidents involving electric vehicles catching fire, and even serious tragedies of burning houses and causing casualties. The main reasons for these problems are: 1. New chargers and new batteries After using for a certain period of time, it is inevitable that the technical parameters will deviate from the normal set value, such as: 1. The conversion cu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00
Inventor 王学堂
Owner 王学堂