Vibrating Element Insulated Beam Power Supply

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Solution Overview

Problem

Conventional vibrating elements with power-consuming members on beam portions face complexity in wiring structures due to twisting deformation, leading to manufacturing difficulties and potential continuity failures like wiring disconnection and shorting.

Innovation Solution

A vibrating element design featuring conductive frames with an oscillating body connecting insulated beam portions, allowing power supply through the frames without direct wiring on the beam portions, and a balanced drive unit configuration for stable vibrational driving.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If wiring is provided on the beam portion to supply power to the piezoresistive element, then power can be supplied to the power-consuming member, but the wiring structure becomes complex and manufacturing difficulty increases due to twisting deformation causing continuity failures

Engineering Contradiction:

Improvepower supply to piezoresistive elementVSAvoidmanufacturing difficulty of wiring structure

Core Design Contradiction:

Use of energy by moving objectVSEase of manufacture

Solution Approach 1:

The patent extracts the wiring from the beam portion and relocates it to the support portion. The beam portion is made insulating to prevent twisting-induced wiring damage, while power is supplied through conductive paths at the support portion where structural deformation does not affect wiring integrity.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent introduces an insulating coating on the beam portion and uses the support portion as an intermediary for power supply. The insulating coating mediates between the need for structural integrity and electrical isolation, while the support portion serves as the intermediary location for conducting power without exposure to twisting forces.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If wiring thickness is increased or beam portion thickness is increased to prevent continuity failures during twisting, then reliability of power supply improves, but device complexity and manufacturing difficulty increase

Engineering Contradiction:

Improvecontinuity reliability of wiring during twistingVSAvoidcomplexity of wiring structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent removes the wiring from the twisting-prone beam portion and relocates it to the stable support portion. This extraction eliminates the need for reinforced wiring or thicker beams, maintaining reliability without increasing complexity.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of making the wiring or beam thicker to withstand twisting, the patent inverts the approach by making the beam insulating and relocating the wiring to a location where twisting does not occur, thereby achieving reliability through positional inversion rather than dimensional reinforcement.

Inventive Principle:

Principle #13The other way round (Inversion)

3Reliability

If insulating material is provided over a wide range or wiring is separated from other conductive members on the beam portion to prevent shorting, then electrical insulation reliability improves, but wiring structure complexity and manufacturing difficulty increase

Engineering Contradiction:

Improveelectrical insulation reliabilityVSAvoidcomplexity of wiring structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the wiring from the beam portion entirely and relocates it to the support portion. This eliminates the need for extensive insulating materials or separation techniques on the beam, achieving electrical insulation reliability through spatial relocation rather than material complexity.

Inventive Principle:

Principle #2Taking out (Extraction)

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

This design simplifies the structure and manufacturing process while ensuring stable power supply to power-consuming members, preventing continuity failures and enhancing manufacturing ease by eliminating the need for wiring on the beam portions and providing balanced vibrational driving.

Implementation Method 1

a piezoelectric body, an upper electrode provided on an upper face of the piezoelectric body, and a lower electrode provided on a lower face of the piezoelectric body

Methodology Applied

Scientific EffectPiezoelectric effect: Piezoelectric Effect

Data Source

PatentEP3533756B1Vibrating element

Publication Date: 2022.06.29 FUNAI ELECTRIC CO LTD

Figure 1~2
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AI summary

A vibrating element including: a conductive first frame (1) including a first beam portion (12) and a first support portion (11) supporting one end of the first beam portion; a conductive second frame (2) that includes a second beam portion (22) and a second support portion (21) supporting one end of the second beam portion, and is disposed separated from the first frame (1); an oscillating body (3) that is disposed between another end of the first beam portion (12) and another end of the second beam portion (22) and connects the first beam portion and the second beam portion in an insulated state; and a power-consuming member that is installed on the oscillating body (3) and is supplied with power via the first frame (1) and the second frame (2).