Dry battery type Usb jack emergency charger for mobile telephone

An emergency charging and dry battery technology, which is applied in the direction of secondary battery charging/discharging, battery circuit devices, current collectors, etc., can solve the problems of unstable charging, large current loss, and inability to cut off the power, and achieve the effect of extending the charging time

Inactive Publication Date: 2009-06-24
张卿
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a dry battery type usb interface mobile phone emergency charger to overcome the defects of the existing emergency chargers such as large volume, unstable charging, inconsistent interface, excessive current loss, high temperature, and failure to cut off the power when charging is short-circuited. charger

Method used

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  • Dry battery type Usb jack emergency charger for mobile telephone
  • Dry battery type Usb jack emergency charger for mobile telephone

Examples

Experimental program
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Effect test

Embodiment Construction

[0012] The dry battery type usb interface mobile phone emergency charger of the present invention comprises a housing 1, a dry battery 2, a circuit board 3 and a charging socket 4, two dry batteries 2 and the circuit board 3 are placed in the housing 1, and the input terminal of the circuit board 3 is connected to the The positive and negative electrodes of the dry battery 2 are connected to the positive and negative electrodes of the charging socket 4, and the circuit board 3 includes a boost chip 5, a resistor R, a light emitting diode D1, an inductor L, a tertiary diode D2 and a capacitor C After the resistor R is connected in series with the light-emitting diode and then connected in parallel with the inductor L, one end is connected to the positive electrode of the battery, the other end is connected to the input terminal LX of the boost chip, and the ground terminal VSS of the boost chip is connected to the negative electrode of the battery and the charging socket. Negati...

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PUM

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Abstract

The invention relates to an emergency charger of a dry battery Usb jack mobile phone, comprising a shell, a dry battery, a circuit board and a charging jack; the dry battery and the circuit board are arranged in the shell, and the input end of the circuit board is connected with the anode and cathode of the dry battery, and the output end thereof is connected with the anode and cathode of the charging jack; the circuit board is provided with a voltage boosting chip, and the charging jack is a standard Usb jack. In the invention, the charging current is stable, and the charging effect is good, thus being completely in accordance with the charging requirements of the mobile phone battery; the usage of the Usb jack is in accordance with the unity requirement of future mobile phone interface; the charger has simple structure and low cost and is suitable for being emergently charged by various mobile phones.

Description

1. Technical field [0001] The invention relates to an emergency charger for a mobile phone, in particular to a dry battery type emergency charger for a mobile phone with a Usb socket 2. Background technology [0002] Most of the current mobile phone chargers are AC chargers, that is, the AC power supply charges the mobile phone through a transformer and a rectifier. This kind of charger must be used in a place with AC power supply. Therefore, there are also emergency power supplies for going out, such as the "dry cell phone charger" disclosed in Chinese patent 200420053265. Mobile phone emergency charging. But it has the following disadvantages: 1. Four dry batteries are used, which makes the charger bulky; 2. There are many components in the circuit, the result is too complicated, and the production cost is high; 3. The charging sockets are not uniform, and the interchangeability is poor. The scope of application is limited. 3. Contents of the invention [0003] The pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H02J7/00
CPCY02E60/12Y02E60/10
Inventor 张卿
Owner 张卿
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