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A miniature piezoelectric-electromagnetic composite power generation device

An electromagnetic composite and power generation device technology, applied in the field of MEMS and micro energy, can solve the problems of easy pollution of the environment, limited energy of chemical batteries, and the need for regular replacement, so as to speed up the cutting speed of magnetic induction lines, improve energy conversion efficiency, and improve The effect of power generation efficiency

Inactive Publication Date: 2018-09-18
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional chemical batteries have shortcomings such as limited energy, need to be replaced regularly, and easy to pollute the environment. The development and utilization of clean, reliable, and cheap new energy sources will be the general trend

Method used

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  • A miniature piezoelectric-electromagnetic composite power generation device
  • A miniature piezoelectric-electromagnetic composite power generation device
  • A miniature piezoelectric-electromagnetic composite power generation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] In the present invention, the number of piezoelectric vibrators and coils is not limited. In this embodiment, six piezoelectric vibrators and coils are alternately distributed as an example.

[0026] Such as Figure 1 to Figure 6 As shown, the present embodiment is composed of a piezoelectric-electromagnetic composite power generation mechanism and a planetary gear acceleration mechanism 2, and the piezoelectric-electromagnetic composite power generation mechanism is composed of an electromagnetic power generation unit, a piezoelectric power generation unit, a raised structure 3 and a casing 7, etc. Composition; the electromagnetic generating unit adopts a brushed DC motor structure. The electromagnetic generating unit includes two parts: the stator and the rotor. The stator is composed of two semi-annular magnetic tiles, the main magnetic pole 6, the brush 10, and the end cover 11; the rotor is composed of the armature winding 4. The armature core 5 is composed of a ro...

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Abstract

The invention discloses a micro piezoelectric-electromagnetic composite power generation device, which comprises an electromagnetic power generation unit, a piezoelectric power generation unit, a planetary gear acceleration mechanism, a housing and a bulge structure, wherein a brushed DC motor structure is adopted by the electromagnetic power generation unit; a cantilever beam-type piezoelectric vibrator structure is adopted by the piezoelectric power generation unit; and the electromagnetic power generation unit and the piezoelectric power generation unit convert external mechanical energy into electric energy. Rotating speed multiplication of a sun gear is achieved by reasonably matching various gear teeth of the planetary gear acceleration mechanism, so that the speed of cutting a magnetic induction line by a coil and the frequency of exciting a piezoelectric vibrator by the bulge structure are improved; and the power generation efficiency is further improved. Two different power generation mechanisms are achieved by the same mechanism, so that the effect of superposing and amplifying output electric energy is achieved; and the power generation efficiency is further improved through ingenious combination with the planetary gear acceleration mechanism.

Description

technical field [0001] The invention relates to MEMS and micro-energy technology, and is mainly used in fields where power supply is inconvenient, such as national defense and military affairs, field exploration, geological survey, etc., and is specifically a micro piezoelectric-electromagnetic composite power generation device. Background technique [0002] Micro power generation technology has broad application prospects in the fields of national defense, military, field exploration, geological survey and so on. At present, most small wireless mobile devices rely on batteries for power supply in specific occasions where power supply is inconvenient, such as military operations in the field, travel and exploration. Traditional chemical batteries have disadvantages such as limited energy, need to be replaced regularly, and easy to pollute the environment. The development and utilization of clean, reliable, and cheap new energy sources will be the general trend. Micro power ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/18H02K7/116H02N2/18
CPCH02K7/116H02K7/1807H02N2/186
Inventor 杨旭高旭东夏操裴长城刘家良周建辉
Owner JILIN UNIV
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