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Composite vibration generator

A vibrating generator and composite technology, applied in the direction of generator/motor, electrical components, piezoelectric effect/electrostrictive or magnetostrictive motor, etc., can solve the problem of insufficient power generation capacity of the vibrating generator, and achieve improved The effect of space utilization, enhanced power generation capacity, and simple structure

Inactive Publication Date: 2012-06-20
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problem of insufficient power generation capacity of existing vibration generators using a single energy conversion mechanism, the present invention proposes a composite vibration generator that can integrate the two mechanisms of electromagnetic induction and piezoelectric effect, thereby increasing the power generation

Method used

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  • Composite vibration generator
  • Composite vibration generator
  • Composite vibration generator

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Experimental program
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Embodiment Construction

[0016] exist figure 1 Among them, four permanent magnets 2 are symmetrically bonded to the upper and lower parts of the inner surfaces of both sides of the open end of the U-shaped plate 1 .

[0017] exist figure 2 In the process, the impact-sensitive piezoelectric ceramic 4 and the vibration-sensitive piezoelectric ceramic 5 are respectively bonded to the lower surface of the substrate 3 . The negative electrode is attached to the surface of the beam, the positive electrode faces outward, and the piezoelectric ceramics are separated by a certain distance. An electric wire 14 is welded on the positive electrode of the piezoelectric ceramic.

[0018] exist image 3 , put the hand-wound coil 9 into the coil container 7 with the tapered impact block 8 pasted on the outer surface, fasten it with the hexagon socket head screw 11 and the hexagon nut 12, and pull out the coil lead wire through the gap in the middle 13.

[0019] exist Figure 4 In the illustrated embodiment, th...

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Abstract

A composite vibration generator belongs to the technical field of the power generation device and comprises a cantilever beam component, a permanent magnet component and a piezoelectric power generation component. An impact block on a free end of a cantilever beam impact an impact induction type piezoelectric ceramic on a substrate to generate the power and simultaneously the vibration is generated in the substrate to be induced by the vibration induction type piezoelectric ceramic to generate the power. During the process, windings incise magnetic line of force to generate electromotive force. The generator is used for self-supplying the power to low power consumption electronic systems such as a wireless sensor net and a portable electronic device and used as a replaceable power supply to replace a battery or charge the battery.

Description

[0001] Technical field [0002] The invention relates to a compound power generating device which integrates two energy conversion mechanisms of electromagnetic induction and piezoelectric effect and can convert mechanical energy in the form of vibration into usable electric energy. Background technique [0003] Mechanical energy in the form of vibration exists widely in human society and the natural environment, and is a renewable and clean energy source. With the development of low-power electronic technology, vibration energy recovery has great application value. So far, the vibration energy recovery device that uses vibration to generate electricity, that is, the vibration generator, is mainly based on three mechanisms: electromagnetic induction, piezoelectric effect and electrostatic effect. The electromagnetic induction vibration generator produces large current and low voltage, the piezoelectric effect type has large voltage and small current, and the electrostatic t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N2/18
Inventor 胡俊辉陈松茂
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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