Stay wire type cell phone emergency charger

Abstract

The invention provides a stay wire type cell phone emergency charger. The stay wire type cell phone emergency charger is constituted by a permanent magnet generator, a stay wire wheel cap, stay wires, a pull ring, and a three-phase bridge type rectification module. A finger is used to hook the pull ring to carry out a pull and release motion, and then all of the stay wires on a stay wire wheel are unfolded under the inertia action of the permanent magnet generator, and then are coiled on the stay wire wheel from an opposite direction, and the above mentioned motion is repeated continuously, and at the same time, the three coils of the permanent magnet generator are used to cut a magnetic line of force to generate induction current. Alternating current generated by the three coils is rectified by the three-phase bridge type rectification module into single-phase direct current, which is charged in the battery of the cell phone. The stay wire type cell phone emergency charger is advantageous in that 1, by adopting a stay wire type method, the power generation of the generator is driven, and a gear mechanism is not required, and therefore a size is small, and portability is realized; 2, by adopting a three-phase bridge type rectification method, maximum value of voltage is increased to square root of three times of original alternating current amplitude, and a relative error between the voltage and the mean value of the maximum value and the minimum value is no more than 7.178%, and therefore stable cell phone charging voltage is acquired.

Description

technical field [0001] The invention relates to a pull-wire emergency charger for mobile phones. Background technique [0002] With the development of society and economy, mobile phones have become the necessities of people's life; moreover, in order to meet the needs of consumers, today's mobile phones are becoming thinner and thinner, but their functions continue to diversify, all of which put forward higher demands on the capacity of mobile phone batteries. High demands also increase the possibility of battery depletion. In order to face a special emergency due to the exhaustion of mobile phone power, many mobile phone emergency charging devices have emerged as the times require. [0003] At present, the prices of mobile phone emergency chargers in the market vary, and the performance varies. Although the emergency charger with alkaline batteries is cheap and easy to use, the battery of the mobile phone heats up abnormally after use, and the waste disposable battery has...

AI Technical Summary

Problems solved by technology

[0003] At present, the price of mobile phone emergency chargers in the market varies, and the performance varies from good to bad.

Although the emergency charger with alkaline batteries is cheap and easy to use, the battery of the mobile phone will heat up abnormally after use, and the waste disposable batteries will cause great pollution to the environment

Although the hand-cranked mobile charger is self-generating, environmentally friendly, and can be used anytime and anywhere, but due to the need for speed change, many gears are added, and the volume doubles, making it inconvenient to carry.

Solar mobile chargers are environmentally friendly and convenient, but because their volume limits the area of ​​solar cells, the energy collection efficiency is low and they cannot be used in the absence of light

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