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Permanent magnet double-suspension type magnetic liquid kinetic energy collector

A magnetic liquid and suspension technology, applied in the direction of electromechanical devices, electrical components, etc., can solve the problems of large overall volume, unable to meet the power supply requirements of portable and wearable electronic devices, etc., achieve large resilience, reduce volume, and increase output power Effect

Active Publication Date: 2021-11-19
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the base layer is detachably installed on the support frame through the torsion spring, different restraint states of the arch ring can be realized by replacing the torsion spring with different stiffness, so as to achieve the purpose of adjusting the natural frequency of the arch ring structure. However, its overall volume is too large to meet the power supply requirements of portable and wearable electronic devices.

Method used

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  • Permanent magnet double-suspension type magnetic liquid kinetic energy collector
  • Permanent magnet double-suspension type magnetic liquid kinetic energy collector
  • Permanent magnet double-suspension type magnetic liquid kinetic energy collector

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Such as Figure 1-Figure 3 As shown, the permanent magnet double-suspension magnetic liquid kinetic energy harvester includes: a housing 2 with a sealed cavity 1 inside, a flat coil 3, a connecting support 4, a mass 5, a magnetic liquid 6, a hollow coil 7 and a positioning ring 8 .

[0038] The sealed chamber 1 is provided with two opposite inner end walls 11 along the first direction, and an inner side wall 12 is between the two inner end walls 11; the cross-sectional area of ​​the inner side walls 12 in the second direction changes alternately along the first direction, so that The inner end wall 11 and the inner side wall 12 form a shuttle-shaped sealed cavity with a small cross-sectional area at both ends and a large middle.

[0039] The housing 2 includes a hollow cylinder 21 with two ends open, an end cap 22 and a positioning pin 24 with a hole provided with a positioning pin end cap 23. The two ends of the hollow cylinder 21 are sealed by the end cap 22, and the...

Embodiment 2

[0064] Such as Figure 4 As shown, the difference from Example 1 is:

[0065] The end cover 22 is provided with an end cover through hole along the first direction, and the two ends of the connecting support 4 pass through the housing 2 along the first direction through the flat coil through hole and the end cover through hole, and at least partially extend out of the housing 2 external. Threads are provided on the outer peripheral surfaces of both ends of the connecting support 4 , and nuts 9 that match each other are fixed on the threaded part of the connecting support 4 .

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Abstract

A permanent magnet double-suspension type magnetic liquid kinetic energy collector is disclosed in the invention, and comprises a shell internally provided with a sealing cavity and a mass block located in the sealing cavity, a flat coil is arranged in the sealing cavity, and the sectional area of the sealing cavity in the second direction is alternately increased and decreased in the first direction; and the mass block is connected with a connecting supporting piece in a penetrating mode in the first direction, and the sectional area of the connecting supporting piece in the second direction is alternately decreased and increased in the first direction. Magnetic liquid is arranged in the sealing cavity, and the mass block is suspended between the shell and the connecting supporting piece through the magnetic liquid. The shell is provided with two opposite outer end faces in the first direction, and the outer side face between the outer end faces is sleeved with a hollow coil. The connecting supporting piece and the shell are matched with the magnetic liquid suspension mass block to achieve lubrication and resistance reduction, the spring with the variable rigidity coefficient is formed, the hollow coil and the flat coil collect kinetic energy of the mass block together, and the output power of the magnetic liquid kinetic energy collector in unit volume is improved.

Description

technical field [0001] The invention relates to the technical field of kinetic energy collection, in particular to a permanent magnet double-suspension magnetic liquid kinetic energy collector. Background technique [0002] The rapid development of portable wearable electronic devices has brought challenges to power supply. It is of great significance to find sustainable clean energy to provide power for portable wearable electronic devices. The use of kinetic energy harvesters to convert the clean kinetic energy generated during human motion into electrical energy is very suitable for portable and wearable electronic devices. [0003] The electromagnetic kinetic energy harvester converts the kinetic energy of moving objects into electrical energy through the law of electromagnetic induction. It has outstanding advantages such as low impedance, high output power, high reliability and long service life, and has broad application prospects. [0004] For common electromagnetic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K35/02H02K44/08
CPCH02K35/02H02K44/08
Inventor 喻峻刘宜伟李润伟
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI