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Energy conversion device

A technology of energy conversion devices and magnetic components, which is applied in steam engine devices, machines/engines, friction generators, etc., and can solve problems such as impedance mismatch, unfavorable collection of low-grade heat energy, and mismatching working temperature

Pending Publication Date: 2022-04-05
BEIJING INST OF NANOENERGY & NANOSYST
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Problems solved by technology

This will inevitably lead to problems such as impedance mismatch and working temperature mismatch, which are very unfavorable to the collection of low-grade heat energy

Method used

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Embodiment Construction

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0039] The Curie effect is: when a magnetic material is heated beyond its Curie temperature (T c ), the magnetic material will transform from a ferromagnetic phase to a paramagnetic phase, and as the temperature decreases, the paramagnetic phase will transform into a ferromagnetic phase again.

[0040] The triboelectric nanogenerator technology is based on the triboelectric effect and electrostatic induction effect, and can use reciprocating mechanical motion ...

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Abstract

The invention relates to the technical field of energy equipment, and discloses an energy conversion device, which comprises a support frame, and a thermomagnetic unit, a friction nanometer power generation unit and a connecting piece which are positioned on the support frame, the supporting frame is provided with a hot temperature area and a cold temperature area, and the hot temperature area is provided with a heat source. The thermomagnetic unit comprises a first magnetic part and a second magnetic part which can attract each other, the first magnetic part is fixedly arranged nearby the hot temperature area, the second magnetic part is located on the side, close to the hot temperature area, of the first magnetic part, and the second magnetic part can reciprocate between the hot temperature area and the cold temperature area under the action of the first magnetic part and the heat source; the friction nanometer power generation unit is connected with the second magnetic piece through a connecting piece, and the friction nanometer power generation unit can be driven by the second magnetic piece to generate power in a friction mode. The energy conversion device can achieve energy conversion from heat energy to mechanical energy and then from the mechanical energy to electric energy, can be applied to natural environments with different temperature differences, and achieves collection of low-grade heat energy by means of friction nanometer power generation.

Description

technical field [0001] The invention relates to the technical field of energy equipment, in particular to an energy conversion device. Background technique [0002] Low-grade thermal energy (lower than 373K) widely exists in industrial production processes and natural environments, such as industrial waste heat, solar thermal energy, geothermal energy, and even thermal energy from the human body. Although low-grade thermal energy reserves are abundant, due to the small temperature difference available, the ability to obtain and convert it into electrical energy is still very limited, and there are still great technical difficulties. As a technology based on the Seebeck effect, thermoelectric power generation technology can directly convert thermal energy into electrical energy, and has been widely used in traditional thermal energy harvesting. However, due to the performance of existing thermoelectric materials and the small temperature difference, this conventional power g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N1/04H02N1/06F01K27/00
Inventor 吴治峄魏雪莲王中林
Owner BEIJING INST OF NANOENERGY & NANOSYST
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