Conductive Elastic Connection Member for Wearable Battery

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Solution Overview

Problem

Existing wearable electronic devices face challenges in efficiently connecting the circuit board and battery due to limited space and the need for reliable electrical connections while maintaining portability and user accessibility.

Innovation Solution

The electronic device incorporates a connection member with an elastic member formed of conductive material and a wire partially surrounded by the elastic member, which electrically connects the battery to the circuit board, enhancing the grounding area and reducing voltage drop.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional wire connection is used between battery and circuit board, then the device structure is simple, but the voltage drop is large and power supply stability is poor

Engineering Contradiction:

Improvepower supply stabilityVSAvoidconnection member structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the elastic member and conductive wire into a single integrated connection member. The elastic member serves both as a mechanical connector and as part of the electrical conduction path, merging structural support and electrical connection functions into one component, thereby improving power supply stability without proportionally increasing device complexity.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The connection member uses composite construction with an elastic member (providing mechanical resilience) and a conductive wire (providing electrical conduction). This composite approach allows the connection member to simultaneously achieve mechanical flexibility for maintaining contact pressure and low electrical resistance for reducing voltage drop, resolving the contradiction between reliability and complexity.

Inventive Principle:

Principle #40Composite materials

2Reliability

If the elastic member and wire are used to connect battery and circuit board, then the voltage drop is reduced and power supply stability is improved, but the internal space requirement increases

Engineering Contradiction:

Improveelectrical connection stabilityVSAvoidinternal space

Core Design Contradiction:

ReliabilityVSVolume of moving object

Solution Approach 1:

The patent nests the conductive wire within or alongside the elastic member structure. The wire is positioned inside the loop or along the body of the elastic member, allowing both components to occupy overlapping or adjacent spatial volumes. This nesting arrangement achieves the dual function of mechanical connection and electrical conduction without requiring separate dedicated spaces for each component, thereby reducing overall space consumption while maintaining connection stability.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Reliability

If the connection member uses an elastic member formed of conductive material, then the grounding area is enhanced and electrical connectivity is improved, but the manufacturing complexity increases

Engineering Contradiction:

Improveelectrical connectivityVSAvoidconnection member fabrication

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent specifies particular parameter ranges for the elastic member including conductivity (10^-6 to 10^-8 S/m), elasticity modulus (0.1 to 10 GPa), and thickness (0.1 to 1 mm). By defining these parameters, the invention balances electrical conductivity needs with mechanical elasticity requirements, enabling manufacturing processes to produce components that meet both electrical connectivity and mechanical performance specifications without excessive complexity.

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

This solution increases the stability of the power supply by reducing voltage drop and enhances the internal space utilization within the device, ensuring efficient electrical connectivity in a compact wearable form factor.

Implementation Method 1

an elastic member formed of a conductive material and a wire at least partially surrounded by the elastic member, and the battery may be electrically connected to the circuit board via the elastic member and the wire

Methodology Applied

Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS12306680B2Electronic device including connection member

Publication Date: 2025.05.20 SAMSUNG ELECTRONICS CO LTD

AI summary

An electronic device includes a lens frame accommodating a display member, a wearing member connected to the lens frame, a circuit board provided inside the wearing member, a battery provided inside the wearing member, and a connection member including a first end connected to the circuit board, a second end connected to the battery, an elastic member formed of a conductive material, and a wire at least partially surrounded by the elastic member. The battery is electrically connected to the circuit board via the elastic member and the wire.