US 10,855,204 B2Granted

Electrostatic induction type power generation element

AssigneeThe University of Tokyo

InventorsYuji Suzuki, Takashi Kato

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Abstract

An electrostatic induction type power generation element is capable of increasing the amount of generated power while suppressing a parasitic capacitance between electrodes between which induced electromotive force is generated. An electrostatic induction type power generation element in one embodiment includes: substrates which are opposed to each other and which move relative to each other in a direction parallel to the opposing surfaces of the substrates; a charge retaining unit and conductors which are respectively formed on the opposing surfaces of the substrates; and a substance which is interposed between the substrates opposed to each other and between the charge retaining unit and the conductors, and which has an anisotropic dielectric constant in which a relative dielectric constant in the direction parallel to the opposing surfaces is higher than a relative dielectric constant in a direction orthogonal to the opposing surfaces.

Claims5

Dependent claims

An electrostatic induction type power generation element that coverts kinetic energy to electric energy, the electrostatic induction type power generation element comprising:

at least two substrates each having surfaces that are opposed to each other, the at least two substrates being configured to move in a direction parallel to the opposing surfaces of the at least two substrates,
a charge retaining unit and a conductor which are respectively formed on the opposing surfaces of the at least two substrates, the charge retaining unit and the conductor being separated by a gap, and
a substance provided between the opposing substrates of the at least two substrates and between the charge retaining unit and the conductor, the substance having an anisotropic dielectric constant such that:
(a) a relative dielectric constant in the direction orthogonal to the opposing surfaces is larger than a relative dielectric constant in the direction parallel to the opposing surfaces, and (b) an increase of electric power consumed by parasitic capacitance is suppressed to be lower than an increase of induced electromotive force in the gap between the charge retaining unit and the conductor.

1 more element

Dependencies are inferred from the claim text.