Wearable Power Generation Sensor Housing for Stable Electrode Connection

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Solution Overview

Problem

Existing power generation sensors face challenges in easily connecting a module receiving generated electric power to a power generation electrode, particularly in applications like diapers attached to a human body.

Innovation Solution

A power generation sensor design that includes a housing body with a module, a first connector electrode on the module's front face, a second connector electrode on the housing body's inner face, and a power generation electrode connected to the second connector electrode, facilitating easy connection and maintaining the contact state.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a module is connected to a power generation electrode mounted in a member such as a diaper, then the power generation sensor can be used in wearable applications, but the connection becomes difficult to establish and maintain

Engineering Contradiction:

Improveapplicability to wearable devicesVSAvoidease of connection

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The module is housed inside the housing body, with the first connector electrode disposed on the front face of the module and the second connector electrode disposed on the inner face of the housing body. This nested arrangement allows the module to be contained within the sensor assembly while maintaining accessible connector electrodes for electrical connection.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The connector electrodes are pre-positioned and connected within the housing body before the module is installed. The first connector electrode is already connected to the second connector electrode, which is connected to the power generation electrode, establishing the electrical connection pathway in advance to simplify the overall connection process.

Inventive Principle:

Principle #10Preliminary action

2Ease of operation

If connector electrodes are exposed for connection, then easy connection is achieved, but damage and contamination of the module may occur

Engineering Contradiction:

Improveease of connectionVSAvoiddamage and contamination

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The module is housed inside the housing body, which provides physical protection. The housing body encloses the module and its connector electrodes, shielding them from external damage and contamination while still allowing electrical connection through the disposed connector electrodes on the housing body's inner face.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The housing body acts as a protective shell that encloses and protects the module and its connector electrodes. This shell structure provides mechanical protection against damage and barriers against contamination while maintaining the functionality of the connector electrodes for electrical connection.

Inventive Principle:

Principle #30Flexible shells and thin films

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 design allows for easy and reliable connection of the module to the power generation electrode, preventing damage and contamination while ensuring stable power transfer.

Implementation Method 1

an electrode generating an electromotive force in accordance with contact with urine

Methodology Applied

Scientific EffectElectromotive force generation: Fuel Cell

Data Source

PatentUS12411027B2Power generation sensor

Publication Date: 2025.09.09 THE RITSUMEIKAN TRUST

AI summary

A power generation sensor includes: a housing body in which a module receiving a generated power is housed; a module with a first connector electrode disposed on a front face; a second connector electrode disposed on an inner face of the housing body connected to the first connector electrode; and a power generation electrode connected to the second connector electrode.