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Vibration power generation

A technology of vibration damping device and generator, applied in the direction of electromechanical device, generator/motor, electrical components, etc., can solve the problem of mechanical energy loss of vibration damping device

Active Publication Date: 2013-05-29
ROSEMOUNT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] While a typical damper is considered necessary for many situations, the mechanical energy transferred to the damper is essentially lost

Method used

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  • Vibration power generation
  • Vibration power generation
  • Vibration power generation

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Embodiment Construction

[0011] Vibration is a great source of renewable energy. The energy density generated by the vibration can vary from 10μW / cm depending on the frequency of the drive and depending on the amplitude / displacement of the vibration 3 Variation to 800μW / cm 3 , the driving frequency varies from Hz to kHz. For example, assume the vibration provides 500µW / cm 3 average energy density. The small pump, 3 feet long, 3 feet wide, and 3 feet high, produces 400 watts of electricity. The heavy machinery and engines used by the process industries and other related industries are typically very heavy and occupy thousands of square feet. The vibrations of these machines can generate very large amounts of electricity.

[0012] Embodiments of the present invention basically provide devices that are connected to a source of mechanical vibration and that convert at least a portion of the mechanical vibration into useful electrical energy. In some embodiments, the device itself is a vibration damp...

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Abstract

Vibration-based electrical power generation is provided. In one aspect, a vibration-based power generator is embodied within a machine dampener and includes an electromotive power generation module and a piezoelectric power generation module. A power storage device is operably coupled to the electromotive power generation module and the piezoelectric power generation module. In another aspect, a device for generating electrical energy based is provided. The device includes a housing operably coupleable to a source of vibration. The housing defines a chamber inside. A first circular permanent magnet is located within the chamber and has an outer diameter. A ring-type permanent magnet is located around the first circular permanent magnet and defines an annular space therebetween. At least one voice coil portion is located in the annular space and is coupled to a flexure structure to allow the voice coil portion(s) to move within the flux of the permanent magnets in response to vibration.

Description

Background technique [0001] Many industrial or commercial operations use electrical, mechanical, wind powered, or some combination of these machines and equipment. Examples of such machines include electric motors, turbines, and the like. Typically, it is desirable to eliminate or attenuate any vibrations produced by such machinery. In general, reducing the vibration of the machine plant reduces the noise of the machine plant and the mechanical wear that components arranged on or in the vicinity of the machine plant experience due to vibration-induced acceleration. Vibration damping devices in the form of pads or springs have been used in many industries including, for example, heavy industry, construction, motor vehicles, process industries, and others. These dampers / pads / springs reduce vibrations, at least to some extent, typically by converting some of the mechanical motion energy into the damper and eventually into heat. [0002] While typical damping devices are consid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03G7/08H10N30/30H10N30/00
CPCF03G7/08H02K35/04H02N2/186
Inventor 卢良驹斯威潘·查克拉波蒂约翰·麦金泰
Owner ROSEMOUNT INC