Power Generation Device Simplified Slider Mechanism

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Solution Overview

Problem

Conventional power generation devices for electronic apparatuses, such as wall switches, have complex structures requiring numerous components, leading to high costs and complexity.

Innovation Solution

A power generation device with a simplified configuration using a push button, slider, first spring, and power generation unit, where the first spring's restoring force moves yoke members relative to each other, changing the magnetic flux direction to generate an electromotive force, eliminating the need for multiple components and simplifying the structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional power generation device uses multiple components (rotary member, swing arm, connection section), then the power generation function is achieved, but the device complexity and manufacturing cost increase

Engineering Contradiction:
Improvepower generation functionVSAvoidnumber of components
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the rotary member, swing arm, and connection section into a single integrated slider component. The slider directly reciprocates in the horizontal direction without requiring separate rotary or swing arm mechanisms, thereby reducing the number of components while maintaining the power generation function through direct magnetic flux modulation.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If a conventional power generation device uses multiple components (rotary member, swing arm, connection section), then the power generation function is achieved, but the manufacturing cost increases

Engineering Contradiction:
Improvepower generation functionVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent combines the rotary member, swing arm, and connection section into a single integrated slider component. The slider directly reciprocates in the horizontal direction without requiring separate rotary or swing arm mechanisms, thereby reducing the number of components while maintaining the power generation function through direct magnetic flux modulation.

Inventive Principle:
Principle #5Merging (Combining)

3Device complexity

If the push button structure is simplified, then the device complexity and cost are reduced, but the operation force uniformity may be affected

Engineering Contradiction:
Improvestructure complexityVSAvoidoperation force uniformity
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The patent introduces a spring mechanism that applies a restoring force to the slider, ensuring uniform operation force throughout the reciprocating motion. This parameter control (spring force) maintains operation uniformity while allowing the simplified structure to function effectively.

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution results in a cost-effective, inexpensive power generation device with a uniform operation force, capable of generating electric power for electronic circuits, and can be used in various electronic apparatuses.

Implementation Method 1

A restoring force, accumulated in response to movement of the push button, of the first spring moves the first movable member and the second movable member together with the slider

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a predetermined electromotive force is obtained from power generation unit 18

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS9324523B2Power generation device
Publication Date: 2016.04.26 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
  • US9324523B2 patent drawing
  • US9324523B2 patent drawing
  • US9324523B2 patent drawing

AI summary

A power generation device includes a push button, a slider, a first spring, and a power generation unit. A first spring has a first end engaging the push button, and a second end engaging the slider. The power generation unit includes a first yoke member, a second yoke member, and a coil. The second yoke member includes a first movable member and a second movable member. The first movable member includes a first permanent magnet and is held in the slider. The second movable member includes a second permanent magnet and is held in the slider. The first yoke member is disposed between the first movable member and the second movable member. The coil is disposed to the outer periphery of the first yoke member.