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Charger protection circuit, charger provided with same and manufacturing method thereof

A protection circuit and control method technology, applied in emergency protection circuit devices, battery circuit devices, current collectors, etc., can solve problems such as damage to charger power batteries, and achieve the effect of enhancing use safety, avoiding burnout, and avoiding damage

Active Publication Date: 2011-07-06
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to solve the problem in the prior art that the charger or the power battery is damaged due to a short circuit when the charger is charging the power battery, and provides a charger protection circuit. When the circuit is connected to the charger and the power battery When a short circuit occurs during charging, not only can the charger be avoided from being burned out, but also the power battery will not be damaged, which enhances the safety of the charger

Method used

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  • Charger protection circuit, charger provided with same and manufacturing method thereof
  • Charger protection circuit, charger provided with same and manufacturing method thereof
  • Charger protection circuit, charger provided with same and manufacturing method thereof

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Embodiment Construction

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0027] figure 2 It is a structural schematic diagram of an embodiment of the charger protection circuit of the present invention, the charger protection circuit is connected between the positive output terminal of the charger and the AC / DC conversion controller;

[0028] The charger protection circuit includes a switch tube Q1, a voltage source VCC, a diode D4, a load R and a load R4, the anodes of the voltage source VCC and the diode D4 are respectively electrically connected to the collector of the switch tube Q1, and the load One en...

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Abstract

The invention discloses a charger protection circuit which is connected between an anode output end of a charger and an AC / DC conversion controller. The charger protection circuit comprises a switch tube Q1, a voltage source VCC, a diode D4, a load R and a load R4, wherein the voltage source VCC and the anode of the diode D4 are electrically connected with a collector of the switch tube Q1 respectively, one end of the load R and one end of the load R4 are electrically connected with a base of the switch tube Q1 respectively, the other end of the load R4 and an emitter of the switch tube Q1 are grounded, the other end of the load R is used for connecting with the anode output end of the charger, and the cathode of the diode D4 is used for connecting with the AC / DC conversion controller of the charger. By adopting the technical scheme, the charger protection circuit not only realizes short circuit protection of the charger, but also effectively avoids damage to a power battery.

Description

technical field [0001] The invention relates to the charging field of electric vehicles and hybrid vehicles, in particular to a charger protection circuit, a charger containing the circuit and a control method thereof. Background technique [0002] At present, power batteries including lithium-ion batteries have been gradually applied to various vehicles, such as bicycles, cars and various transportation vehicles. Power batteries are an important power source for driving vehicles, and their charging and discharging performance will directly Affect the power and cruising range of the vehicle. In order to facilitate the charging of the power battery in time when the power battery is feeding power during the driving process of the vehicle, in addition to charging the power battery by the charging system set up on the roadside, some vehicles are equipped with a car charger inside themselves, as long as there is a power supply. Charging the vehicle power battery. [0003] The p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H7/00H02J7/02
Inventor 石雷杨翠梅郭彬张建华
Owner BYD CO LTD
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