Heatable Garment Battery Integration and Heat Reservoir

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Solution Overview

Problem

Existing heatable wear devices, such as gloves and scarves, face challenges in assembly due to the need to keep lithium-ion or solid-state batteries isolated from heating plates, resulting in excessive space, complex assembly, and diffused heat sources.

Innovation Solution

A heatable wear device design that closely integrates an explosion-proof battery with a heating layer and a high-specific-heat covering layer, using a Solid State Battery with a flexible printed circuit and metal wire heating elements, where the covering layer acts as a heat reservoir to absorb and radiate heat, allowing for a compact assembly and reduced power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the lithium-ion battery or solid state battery is kept at a safe distance away from the heating plate, then the battery can be protected properly, but the assembled space becomes excessive and the heat sources become diffused

Engineering Contradiction:
Improvebattery protectionVSAvoidassembled space
Core Design Contradiction:
ReliabilityVSVolume of stationary object

Solution Approach 1:

The patent introduces a heat-resistant substrate as an intermediary component between the battery and heating plate. This substrate can withstand high temperatures and allows the battery to be positioned closer to the heating plate without compromising safety, thereby reducing assembled space while maintaining battery protection

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent integrates the battery, heating plate, and heat-resistant substrate into a unified heating structure assembly. By merging these components into a compact integrated unit, the overall assembled space is reduced while maintaining the functional separation and protection between the battery and heating elements

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If the lithium-ion battery or solid state battery is kept at a safe distance away from the heating plate, then the battery can be protected properly, but the assembly steps become complicated

Engineering Contradiction:
Improvebattery protectionVSAvoidassembly steps
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the battery, heating plate, and heat-resistant substrate into a pre-assembled integrated heating structure. This merging reduces the number of separate assembly steps required, as the components are already positioned and secured relative to each other in the final product

Inventive Principle:
Principle #5Merging (Combining)

3Duration of action of moving object

If the covering layer with high specific heat is used as a heat reservoir, then the operation time can be extended and power consumption reduced, but the device complexity increases

Engineering Contradiction:
Improveoperation timeVSAvoiddevice complexity
Core Design Contradiction:
Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The covering layer is designed to serve multiple functions: it provides thermal insulation, acts as a heat reservoir due to its high specific heat capacity, and contributes to the overall structural integrity of the heating assembly. This multi-functionality extends operation time without proportionally increasing device complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 achieves a compact assembly, simpler steps, energy savings, and a concentrated heat source, extending operation time and reducing energy storage volume while maintaining safety through the use of explosion-proof components.

Implementation Method 1

the covering layer with a high specific heat... can be used as a heat reservoir to absorb the heat radiated from the filament

Methodology Applied
Scientific EffectThermal radiation absorption: Absorption (EM radiation)

Implementation Method 2

the heating layer is woven from meal wires made of iron, steel, or copper... electrically connected to the explosion-proof battery

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentEP3389124B1Heatable garment
Publication Date: 2019.03.13 CARMMING INT
  • EP3389124B1 patent drawingFigure 1
  • EP3389124B1 patent drawingFigure 2
  • EP3389124B1 patent drawingFigure 3

AI summary

A heatable wear device (10) includes a wear body (1), at least one heating module (2), and a circuit board (3). The heating module (2) is installed inside the wear boy (1) and includes an explosion-proof battery (21), a heating layer (22), and a covering layer (23) with a high specific heat. The heating layer (22) is electrically connected to the explosion-proof battery (21) and disposed corresponding to the explosion-proof battery (21). The covering layer (23) with a high specific heat is clamped between the explosion-proof battery (21) and the heating layer (22). The covering layer (23) with a high specific heat includes a first surface (231) and a second surface (232) opposite to the first surface (231). The first surface (231) is attached to the explosion-proof battery (21) and the second surface (232) is attached to the heating layer (22). The circuit board (3) is installed inside the wear body (1) and electrically connected to the explosion-proof battery (21).