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Vibration power generation device, vibration monitoring device and system

A vibration system, vibration power generation technology, applied in the directions of generators/motors, circuits, electrical components, etc., can solve problems such as inability to generate electricity, and achieve good efficiency

Active Publication Date: 2017-10-13
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this method, when the resonant frequency of the vibrating piezoelectric body coincides with the frequency of vibration, a large mechanical displacement can be obtained to generate electricity, but if the resonant frequency deviates from the frequency of vibration, it is almost impossible to generate electricity.

Method used

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  • Vibration power generation device, vibration monitoring device and system
  • Vibration power generation device, vibration monitoring device and system
  • Vibration power generation device, vibration monitoring device and system

Examples

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Embodiment Construction

[0028] A vibration power generation device according to one embodiment has such figure 1 structure shown. Such as figure 1 As shown, the vibration power generation device 100 of this embodiment includes a vibration system 110 , and the vibration system 110 is mounted on the vibration member 101 via the adhesive member 102 . The direction in which the vibration power generating device 100 is used is not limited, and in the following description, the vibrating member 101 side is regarded as the bottom and the side opposite to the vibrating member 101 is described as the upper side.

[0029] The vibration part 101 includes all objects that generate vibration. Examples include: machinery including transportation machinery, working machinery, and home appliances, and their constituent parts. Examples include automobiles, trams, airplanes, refrigerators, and washing machines. In addition, main bodies, engines, motors, shafts, mufflers, shock absorbers, tires, compressors, fans (...

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Abstract

The vibration power generation device includes a vibration system (110) mounted on a vibration component (101). The vibration system (110) has a first vibration system (111) and a second vibration system (112) attached to the first vibration system (111). The first vibration system (111) includes an elastic component (131) installed on the vibration component (101) and a first quality component (132) installed on the elastic component (131). The second vibration system (112) includes a leaf spring (151) integrally formed with the piezoelectric element (153) and a second mass part (152) mounted on the leaf spring (151). The resonance frequency of the first vibration system (111) is approximately equal to the resonance frequency of the second vibration system (112).

Description

technical field [0001] The invention relates to a vibration power generation device, a vibration monitoring device and a system. Background technique [0002] A piezoelectric element is an element that generates voltage by inducing electrical polarization by applying pressure in a specific direction. It is possible to generate electricity by converting mechanical displacement into voltage with a piezoelectric element. The more common mechanical displacement is vibration. If vibration can be used to generate electricity, electronic equipment can be operated in almost all places without preparing a power supply. [0003] As a method of generating electricity by vibration, there is a method of using a vibrating piezoelectric body in which a piezoelectric element is mounted on a vibration plate. However, in this method, when the resonance frequency of the vibrating piezoelectric body coincides with the vibration frequency, a large mechanical displacement can be obtained to ge...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N2/18H10N30/30
CPCH02N2/188H10N30/306
Inventor 胜村英则加贺田博司田村昌也长谷川浩一栗熊甫
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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