Electromagnetic generator

A technology of electromagnetic generators and magnets, applied in the direction of electromechanical devices, electrical components, etc., can solve the problems of long effective length, large deflection, and inability to obtain sufficient power, and achieve the effect of improving efficiency

Inactive Publication Date: 2013-07-24
SEIKO INSTR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the prior art, since the permanent magnet moves between a plurality of coils to generate electricity, the permanent magnet and the coil face each other at a position where the magnetic flux density is low, and the permanent magnet reciprocates with a small moving distance. In the case of
[0008] In addition, in another prior art, since the permanent magnet is held by a coil spring, when changing and adjusting the natural frequency of the permanent magnet in the moving direction, even if the deflection is adjusted using a nonlinear coil spring, If the vibration frequency is greatly changed, the amount of deflection will also increase, so it is necessary to use a coil spring with a long effective length, and there is a problem of increasing the size of the device.
In addition, since a magnetization prevention device is provided between the coil spring and the permanent magnet in order to prevent magnetization of the coil spring, the device is complicated

Method used

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Examples

Experimental program
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Effect test

Embodiment 1）

[0054] Hereinafter, one embodiment (Example 1) of the electromagnetic generator according to the present invention will be described with reference to FIGS. 1 to 10 .

[0055] As shown in Figure 1, the electromagnetic generator 1 has: a magnet assembly 3, a magnet holder 12, and a guide rod 11 to guide the movement of the magnet assembly 3; housings 23, 24 to hold the guide rod 11 from both ends; The repelling magnets 4 and 5 of the device function as magnetic springs, repel the magnet assembly 3 , the case 22 , and the solenoid coil 21 , and generate electric power by electromagnetic induction with the magnet assembly.

[0056] The housings 23, 24 are formed of circular plates.

[0057] The guide rod 11 is formed of a round rod. In addition, the guide rod 11 is provided so as to extend from the center of one surface of the circular plate forming the housings 23 and 24 in a direction perpendicular to the other surface.

[0058] The magnet holder 12 is mounted so that the gui...

Embodiment 2）

[0081] 11 and 12 show the electromagnetic generator 1 according to the second embodiment.

[0082] As shown in FIG. 11 , the electromagnetic generator 1 is equipped with: a magnet assembly 3; holding parts 27, 28, which hold the magnet assembly 3 along the moving direction; a housing 8, which accommodates the holding parts 27, 28; and a solenoid coil 21, which passes Electricity is generated by electromagnetic induction with the magnet assembly 3 .

[0083] Holders 27 and 28 are composed of housings 23 and 24 and repelling magnets 4 and 5 . Furthermore, the holding parts 27 and 28 have a distance adjustment mechanism for adjusting the distance between the holding parts 27 and 28 and the magnet assembly 3 . Specifically, the casings 23, 24 have male threads formed on their outer peripheries, and are provided with recesses for accommodating the repelling magnets 4, 5 and grooves 25, 26 into which the front ends of tools such as a flat-blade screwdriver fit. Rotation enables mo...

Embodiment 2

[0094] (Modification 1 of Embodiment 2)

[0095] FIG. 13 shows an electromagnetic generator 1 according to Modification 1 of Embodiment 2. In FIG.

[0096] The same reference numerals are assigned to the same configuration as that of the second embodiment shown in FIG. 11 , and description thereof will be omitted.

[0097] The difference between Example 2 and Modification 1 of Example 2 is that unit magnets 15 and 16 are fastened by countersunk screws 14 with cross holes and nuts 13 to form magnet assembly 3 .

[0098] The repelling magnets 4 and 5 are fixed to the housings 23 and 24 by bonding, with their opposite poles of the same polarity as the magnet assembly 3 facing the magnet assembly 3 .

[0099] The unit magnets 15 and 16 are magnets with a counterbore having a center hole and a conical chamfer on one side of the hole. Insert the countersunk screw 14 and the nut 13 with the cross hole into the central holes of the unit magnets 15 and 16 , fasten the countersunk scr...

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PUM

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Abstract

The aim of the present invention lies in providing an electromagnetic generator which generates electricity by vibration of a magnet, and is capable of generating electricity efficiently even with vibrations of small amplitude. The electromagnetic generator comprises: a magnet assembly comprising a plurality of stacked permanent magnets which are magnetised in the direction of stacking with like poles facing each other; and a solenoid coil that is positioned surrounding the side faces of the magnet assembly, the magnet assembly being constructed in such a way that the relative position of the solenoid coil can be altered. In this electromagnetic generator, the planar position of the magnet assembly in which like poles face each other is retained by a resilient body or the magnetic repulsive force of a permanent magnet, in such a way as to coincide with the centre of the solenoid coil in the winding axis direction, in the stationary position.

Description

technical field [0001] The invention relates to an electromagnetic generator for generating electricity through relative movement of a permanent magnet and a solenoid coil along the coil winding installation axis direction. Background technique [0002] The permanent magnet and the solenoid coil relatively move in the direction of the coil winding installation axis to generate electricity, and the permanent magnet and the solenoid coil are arranged to face each other with a gap. Also, the generator transforms kinetic energy caused by the relative movement of the permanent magnet and the solenoid coil into electrical energy induced by the coil. [0003] Here, in a conventional generator, a plurality of permanent magnets are laminated in a direction in which the same poles face each other to locally increase the magnetic flux density, and many magnetic fluxes are interlinked with the coil, thereby obtaining high power ( Refer to Patent Document 1). [0004] In addition, in a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K35/02H02K35/04
CPCH02K35/02
Inventor 木下伸治
Owner SEIKO INSTR INC
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