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Composite type nano generator and wearable device

A technology of nanometer generators and wearable devices, applied in friction generators, electrical components, electromechanical devices, etc., can solve the problems of large size, low output voltage, small output voltage, etc., achieve structural and practical optimization, improve electrical The effect of signal output and convenient movement

Inactive Publication Date: 2017-03-01
BEIJING INST OF NANOENERGY & NANOSYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The collection of mechanical energy by a single effect is obviously very limited. Among them, the nanogenerator based on the piezoelectric effect has a large output power, but its output voltage is not high and its size is large; the generator based on the friction effect has a high output voltage, but the output The current is small; the generator based on the electromagnetic effect has a slow corresponding speed and a small output voltage

Method used

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  • Composite type nano generator and wearable device
  • Composite type nano generator and wearable device
  • Composite type nano generator and wearable device

Examples

Experimental program
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Embodiment 1

[0047] This embodiment provides a composite nanogenerator, including: a magnetoelectric generator, arranged inside the support box, for generating a magnetoelectric signal based on the magnetoelectric effect under the action of an external force; and a friction nanogenerator, fixed on the The outer surface of the supporting box includes a deformable part and a fixed part, which are used to deform the deformable part under the action of an external force so as to contact or separate from the fixed part to generate a triboelectric signal.

[0048] The composite nanogenerator of this embodiment combines the magnetoelectric generator and the frictional nanogenerator, has a simple structure, and improves the electrical signal output of the nanogenerator.

[0049] 1. Triboelectric nanogenerator

[0050] The triboelectric nanogenerator is a contact-separation component structure, which generates triboelectric signals through the contact-separation of the deformable part and the fixed p...

Embodiment 2

[0066] Embodiment 2 also provides a composite nanogenerator. Compared with Embodiment 1, the main difference lies in the structure of the magnetoelectric generator, while the triboelectric nanogenerator and other related components are the same as those in Embodiment 1.

[0067] In the second embodiment, the magnetoelectric generator also includes: at least one coil fixed on the inner surface of the support box; and a freely movable magnet arranged in the space formed by the coil. However, different embodiment one, such as figure 2 (a)- figure 2 As shown in (c), the magnet C in Embodiment 2 is preferably a square magnet, and there are four elliptical coils B1-B4 in total, and the four elliptical coils are arranged in pairs along the upper and lower surfaces of the support box, And the coils B1 and B2 arranged on the upper inner surface and the corresponding coils B3 and B4 arranged on the lower inner surface are placed in a cross. The magnetoelectric generator with this st...

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Abstract

The invention relates to the technical field of nano generators and discloses a composite type nano generator and a wearable device. The composite type nano generator comprises a magneto-electric generator and a friction nano generator. The magneto-electric generator is arranged in a support box and used for generating magneto-electric signals based on the magneto-electric effects under the effects of external force. The friction nano generator is fixed on the outer surface of the support box, comprises a deformable part and a fixed part and is sued for allowing the deformable part to be deformed under the effects of the external force, thereby allowing the deformable part to be in contact with or separated from the fixed part to generate friction electric signals. The wearable device comprises the composite type nano generator. According to the invention, by adoption of coupling of the friction effects and the magneto-electric effects and by use of the design of the contact-separation type element device structure, the composite type nano generator based on electro-magnetic friction is provided, so electric signal output of the nano generator is improved; mechanical energy generated by wrist movement and the like can be converted into electric power; and the composite type nano generator can be used for driving small wearable devices, so life of the people becomes convenient.

Description

technical field [0001] The invention relates to the technical field of nanometer power generation, in particular to a composite nanometer generator and a wearable device. Background technique [0002] At present, due to the wide application of mechanical energy in production and life, the use of emerging technologies to collect mechanical energy to drive electronic devices in daily life has also attracted more and more attention. Among them, the emergence of magnetoelectric and piezoelectric technologies has made traditional mechanical energy collection more efficient. is valid. For example, in 2012, triboelectric nanogenerators based on triboelectrification and electrostatic inductive coupling technologies played an important role in collecting energy generated during mechanical movements such as sliding and rotation. In addition, the invention of single-electrode triboelectric nanogenerators decreased. energy loss during device operation. [0003] Although nanogenerators...

Claims

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Application Information

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IPC IPC(8): H02N1/04H02K35/02
Inventor 杨亚全婷王中林
Owner BEIJING INST OF NANOENERGY & NANOSYST
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