A mechanical vibration-electric energy conversion device with integrated mechanical rectification mechanism

Abstract

The invention provides a mechanical vibration-electric energy conversion apparatus integrated with a mechanical rectifying mechanism. The mechanical vibration-electric energy conversion apparatus consists of a movement conversion mechanism, the mechanical rectifying mechanism and a power generation mechanism; the movement conversion mechanism is used for converting linear movement of mechanical vibration into rotary movement; the mechanical rectifying mechanism is used for rectifying the bidirectional rotary movement into fixed direction rotary movement and outputting the fixed direction rotary movement to the power generation mechanism; and the power generation mechanism is used for converting the fixed direction rotary movement into electric energy. By virtue of the mechanical vibration-electric energy conversion apparatus, energy in going up and going down processes of vibration can be utilized fully, and reliability and power generation efficiency of the apparatus in high-load instantaneous impact of the apparatus can be improved.

Description

technical field [0001] The invention relates to a mechanical vibration-electric energy conversion device integrating a mechanical rectification mechanism. Background technique [0002] Vibration and shock are ubiquitous in nature, and in most cases, the energy generated by vibration is eventually turned into useless work and wasted. If the energy generated by vibration can be efficiently recycled, it will help reduce the use of fossil fuels and the environment. pollution. [0003] The existing products mainly use rack and pinion or ball screw to convert the linear motion of mechanical vibration into the rotational motion of the generator, so as to realize the recovery of vibration energy and power generation. However, both of the above mechanisms have disadvantages: [0004] Although the transmission efficiency of the rack and pinion mechanism is high, due to the unavoidable backlash between the gear and the rack, when the rack is subjected to an instantaneous impact of a ...

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Problems solved by technology

[0004] Although the transmission efficiency of the rack and pinion mechanism is high, due to the unavoidable backlash between the gear and the rack, when the rack is subjected to a momentary impact of a large load, the tooth surface of the gear and the rack will be subjected to a large force. The strength of the tooth root is a great test, and at the same time it increases wear and tear, causing problems such as low reliability, high noise, and poor precision;

[0005] Although the ball screw mechanism can eliminate the gap through pre-tightening, and has low noise and high precision, the thread pitch of the ordinary ball screw is small. waste, the screw may be bent or even broken in severe cases

[0006] In addition to the above shortcomings, since the vibration is reciprocating, when the vibration direction of the rack and pinion mechanism or the ball screw mechanism changes, the gear or nut will also move in the opposite direction, driving the generator to rotate in the opposite direction, causing a large reaction. To the impact

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