Power generation device and input device

Patent metadata

Field	Value
Publication number	US-11223266-B2
Application number	US-201816640569-A
Country	US
Kind code	B2
Filing date	Sep 20, 2018
Priority date	Oct 10, 2017
Publication date	Jan 11, 2022
Grant date	Jan 11, 2022

Abstract

Magnets are configured to generate absorption force for holding a movable member at each of first and second positions. A power generator includes a mover configured to move in conjunction with the movable member. The power generator is configured to convert kinetic energy of the mover into electrical energy. When an operator moves in a direction in which a first pressing part approaches a second holding part while the movable member is at the first position, a spring member is compressed by the first pressing part and the second holding part. The spring member then generates restoring force for moving the movable member to the second position. When the operator moves in a direction in which a second pressing part approaches a first holding part while the movable member is at the second position, the spring member is compressed by the second pressing part and the first holding part. The spring member then generates restoring force for moving the movable member to the first position.

First claim

The invention claimed is:

1. A power generation device comprising:
a fixing member;
a movable member held by the fixing member, the movable member being movable, relative to the fixing member, in a first direction between a first position and a second position;
an operator configured to move between a first operation position and a second operation position, the operator lying at the first operation position while the movable member is at the first position, the operator lying at the second operation position while the movable member is at the second position;
magnets configured to generate absorption force for holding the movable member at each of the first position and the second position;
a power generator including a mover configured to move in conjunction with the movable member, the power generator being configured to convert kinetic energy of the mover into electrical energy;
a spring member held by the movable member, the spring member being configured to transmit force from the operator to the movable member; and
a slide member held by the fixing member,
wherein the movable member includes a first holding part and a second holding part away from each other in the first direction,
the movable member holds the spring member between the first holding part and the second holding part,
the operator includes a first pressing part and a second pressing part,
while the operator is at the first operation position, the first pressing part and the second holding part pinch the spring member,
while the operator is at the second operation position, the second pressing part and the first holding part pinch the spring member,
when the operator moves in a direction in which the first pressing part approaches the second holding part while the movable member is at the first position, the first pressing part and the second holding part compress the spring member to allow the spring member to generate restoring force for moving the movable member from the first position to the second position,
when the operator moves in a direction in which the second pressing part approaches the first holding part while the movable member is at the second position, the second pressing part and the first holding part compress the spring member to allow the spring member to generate restoring force for moving the movable member from the second position to the first position,
the slide member is movable in the first direction between a first slide position and a second slide position, the slide member lying at the first slide position while the operator is at the first operation position, the slide member lying at the second slide position while the operator is at the second operation position,
when the slide member moves between the first slide position and the second slide position, the slide member presses the operator, and
the operator is configured to move in conjunction with the slide member.

2. The power generation device according to claim 1 , wherein the spring member is a plate spring made from a metallic plate, the plate spring having an arc-shaped curve.

3. An input device comprising:
the power generation device according to claim 1 ; and
a signal processing circuit electrically coupled to the power generator, the signal processing circuit being configured to use the electrical energy generated by the power generator moving in conjunction with the operator to output a signal.

4. The input device according to claim 3 , wherein
the signal processing circuit includes a capacitor, and
the capacitor is capable of storing electric charge generated by the power generator.

5. An input device comprising:
the power generation device according to claim 2 ; and
a signal processing circuit electrically coupled to the power generator, the signal processing circuit being configured to use the electrical energy generated by the power generator moving in conjunction with the operator to output a signal.

6. The input device according to claim 5 , wherein
the signal processing circuit includes a capacitor, and
the capacitor is capable of storing electric charge generated by the power generator.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Ohishi Suguru

Classifications

• H02N2/18

  producing electrical output from mechanical input, e.g. generators (for measurement devices G01) · CPC title

• H02K35/06

  with moving flux distributors, and both coil systems and magnets stationary · CPC title

• H02K7/1853 Primary

  driven by intermittent forces · CPC title

• H02K35/04

  with moving coil systems and stationary magnets · CPC title

• H02K35/02 Primary

  with moving magnets and stationary coil systems · CPC title