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Differential electromagnetic type vibration energy collection device

An electromagnetic vibration and energy harvesting technology, applied in electromechanical devices, reciprocating/swinging/vibrating magnetic circuit components, magnetic circuit shape/style/structure, etc., to achieve the effects of increased speed, ingenious device structure, and simple design

Pending Publication Date: 2022-05-20
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing vibration energy collection device cannot efficiently collect multi-directional vibration micro-energy in any plane, and invented an energy collection device that can collect multi-directional vibration micro-energy after differential amplification. Through the device of the present invention, the collection of multi-directional vibration micro-energy in any plane can be realized efficiently

Method used

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  • Differential electromagnetic type vibration energy collection device
  • Differential electromagnetic type vibration energy collection device
  • Differential electromagnetic type vibration energy collection device

Examples

Experimental program
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Effect test

Embodiment 1

[0034] combine Figure 1~2 As shown, the present invention provides a differential electromagnetic vibration energy harvesting device, comprising a base plate 1, an annular chute 2 fixedly arranged on the upper surface of the base plate 1, a bar-shaped limiting groove 3 movably arranged on the upper surface of the base plate 1, a fixed The elliptical track 4 which is arranged above the bottom plate 1 and whose central axis coincides with the central axis of the annular chute 2, the electromagnetic energy conversion device which is movably arranged in the strip-shaped limiting groove 3, and which is movably arranged in the annular chute Roller Ball 7 within 2. Wherein, the annular chute 2 includes an inner ring side wall 21, a bottom wall 22 and an outer ring side wall 23, the strip-shaped limiting groove 3 is located in the area enclosed by the inner ring side wall 21, and the bar-shaped The length of the limiting groove 3 is not greater than the diameter of the inner ring of...

Embodiment 2

[0037] combine Figure 3~4 As shown, the structure of this embodiment is basically similar to that of Embodiment 1, the difference is that the two ends of the strip-shaped limiting groove 3 are respectively provided with first connecting pieces, and the inner ring side wall 21 of the annular chute 2 A first annular groove is provided in the outer circumferential direction, and a first connecting piece is movably arranged in the first annular groove, and the first connecting piece is a sliding connecting piece; the rolling ball 7 is connected with the sliding connecting end of the coil 5 .

[0038] When in use, place the lower surface of the base plate 1 on a vibration source, and when the base plate 1 is vibrated in multiple directions, the rolling ball 7 will roll in the annular chute 2, and the coil 5 will therefore Received a traction force, the coil 5 transmits the traction force to the strip-shaped limiting groove 3 where it is located, so that the connecting piece of the...

Embodiment 3

[0040] combine Figure 5~6 As shown, the structure of this embodiment is basically similar to that of Embodiment 1, the difference is that the strip-shaped limiting groove 3 is fixedly arranged on the bottom plate 1, and the elliptical track 4 is movably arranged above the bottom plate 1 , the rolling ball 7 is connected to one end of the elliptical track 4, the top of the inner ring side wall 21 of the annular chute 2 is provided with a second annular groove, and the bottom of the elliptical track 4 is provided with two second connecting The second connecting piece is movably connected in the second annular groove, and the second connecting piece is a rolling connecting piece.

[0041] When in use, the lower surface of the bottom plate 1 is placed on a vibration source. When the bottom plate 1 is vibrated in multiple directions, the rolling ball 7 will roll in the annular chute 2, thereby driving the elliptical The track 4 rotates around the central axis of the annular chute...

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Abstract

The invention discloses a differential electromagnetic vibration energy collection device, which is characterized in that an annular sliding groove is formed in a bottom plate, a rolling ball in the annular sliding groove senses multi-direction vibration borne by the bottom plate and then rolls in the annular sliding groove, and rolling of the rolling ball drives relative positions of a strip-shaped limiting groove and an elliptical track to change; in the moving process of the coil and the magnet, according to the Faraday's law of electromagnetic induction, the coil can cut magnetic induction lines to generate current, and conversion from multi-direction vibration energy to electric energy in any plane is achieved. Meanwhile, every time the relative position of the strip-shaped limiting groove and the oval track changes, the coil and the magnet in the strip-shaped limiting groove can move towards / away from the center of the strip-shaped limiting groove at the same time, a multi-direction vibration source in any plane is converted into differential impact on the electromagnetic type energy conversion device through the rolling ball, and therefore micro energy is amplified, and the energy conversion efficiency is improved. And the collection efficiency of the vibration energy is obviously improved.

Description

technical field [0001] The invention relates to the technical field of micro energy collection, in particular to a differential electromagnetic vibration energy collection device. Background technique [0002] In recent years, with the rapid development of microelectronics technology and wireless communication technology, wireless sensor networks have been applied in the fields of environment and ecological monitoring, health monitoring, home automation and traffic control, and have attracted widespread attention. However, the traditional power supply method based on chemical batteries has limitations such as short life, difficult replacement, and high cost. The power supply problem has become a major obstacle to the large-scale application of wireless sensor networks. Vibration is ubiquitous in the environment. Harvesting vibration energy in the environment and converting it into electrical energy, thus replacing traditional power sources for wireless sensor networks, has...

Claims

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Application Information

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IPC IPC(8): H02K35/02H02K1/34
CPCH02K35/02H02K1/34H02K2201/18
Inventor 贾生尧施阁
Owner CHINA JILIANG UNIV
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