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Charging apparatus

A battery charging and battery box technology, applied in battery circuit devices, circuit devices, secondary battery charging/discharging, etc., can solve problems such as environmental pollution and high cost

Inactive Publication Date: 2010-06-02
GUANGZHOU ZHANHUI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It cannot be used every time it is used. It is not only expensive to use, but also causes great pollution to the environment.

Method used

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Embodiment Construction

[0021] Embodiments of the battery charging device of the present invention and its applicable rechargeable batteries will be described below with reference to the accompanying drawings.

[0022] Such as figure 1 As shown, the rechargeable battery in this embodiment includes a charging and discharging circuit composed of a lithium-ion rechargeable battery cell, a protection circuit connected to the battery cell, and a step-down circuit.

[0023] Because lithium-ion batteries have strict voltage requirements, overcharging and overdischarging will damage the battery, so we use Ricoh's dedicated single-cell lithium battery protection chip U1, model R5426. By connecting two field effect transistors U2-A and U2-B with very small impedance in series on the charging and discharging circuit to control the on and off of the charging and discharging circuit, so as to protect the battery, the circuit schematic diagram is as follows figure 2 shown. The charge-discharge circuit also incl...

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Abstract

A charging device comprises a charging main body which inputs alternating-current power supply and outputs low-voltage direct current power supply, a charging chassis which is electrically connected with the charging main body and a replaceable battery box which is mounted on the charging chassis and is provided with charging contact points, wherein one charging contact point is contacted with anpositive electrode on the center of the top portion of the battery, and the other charging contact point is contacted with a charging negative electrode of the outer ring of the top portion of the battery. The charging device has the advantages that a rechargeable battery whose positive electrode and charging negative electrode are located on the same end can be charged by the charging device, different types of rechargeable batteries can be charged by the charging device through changing different battery boxes.

Description

[0001] This application is a divisional application of an invention patent application with the filing date of June 30, 2005, the application number of 200510080855.0, and the title of “A Rechargeable Battery and Its Charging Device”. technical field [0002] The present invention relates to a power supply device, in particular to a device capable of charging a rechargeable battery. Suitable for charging rechargeable batteries in portable electronic devices. Background technique [0003] At present, there are many disposable batteries on the market, such as alkaline batteries, primary lithium batteries, nickel-cadmium batteries, and nickel-hydrogen batteries. The principle is to convert chemical energy into electrical energy, and the electrical energy is often exhausted after a period of use. It cannot be used every time it is used up, and it not only costs a lot to use, but also causes great pollution to the environment. As a result, rechargeable batteries that can be rech...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/02H01M10/44
CPCY02E60/10
Inventor 黄猛
Owner GUANGZHOU ZHANHUI ELECTRONICS