Hair Dryer Heating Module With Nested Honeycomb Radiators

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Solution Overview

Problem

Existing heating modules in hair dryers face challenges in achieving uniform heating due to complex structures and increased assembly difficulty when multiple sleeve-like structures with different diameters are used, leading to potential misalignment and shaking, and require a more efficient and simpler design for heat conduction.

Innovation Solution

A high-efficiency heating module with a shell body, insulation bracket, and heating main body featuring a heat conduction portion with a heat radiation inner cylinder, honeycomb-shaped heat radiation plates, and outer heat radiation plate, along with heating films and fins, allowing for a multilayer finned structure that can be manufactured through aluminum extrusion, ensuring uniform heat distribution and easy assembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If multiple sleeve-like structures with different diameters are used to achieve uniform heating coverage, then the heating uniformity is improved, but the assembly difficulty increases and misalignment occurs

Engineering Contradiction:
Improveheating uniformityVSAvoidassembly difficulty
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent employs nested sleeve-like structures where inner sleeves are placed within outer sleeves, creating a concentric multi-layer heating configuration. This nesting approach allows uniform heating coverage across different radial zones while maintaining structural alignment through shared central axes, thereby avoiding misalignment issues that would arise from separate assembly of multiple independent sleeves.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The heating system is divided into multiple segmented sleeve-like heating elements with different diameters, where each sleeve is responsible for heating a specific radial zone. The segmentation allows each sleeve to be optimized for its specific function while the overall nested arrangement ensures they work together as a unified system, achieving uniform heating without the complexity of assembling multiple independent components.

Inventive Principle:
Principle #1Segmentation

2Loss of energy

If close fit is required between multiple heating components to ensure heat conduction effect, then the heat conduction efficiency is improved, but the manufacturing precision requirement increases

Engineering Contradiction:
Improveheat conduction efficiencyVSAvoidfitting precision
Core Design Contradiction:
Loss of energyVSManufacturing precision

Solution Approach 1:

The patent utilizes flexible heating films as thin-layer heating components that can conform to the inner surfaces of the sleeve structures. These flexible films maintain close contact with the heating surfaces through their inherent flexibility, ensuring efficient heat conduction without requiring extremely tight mechanical tolerances or complex fastening mechanisms, thereby reducing manufacturing precision requirements while maintaining thermal efficiency.

Inventive Principle:
Principle #30Flexible shells and thin films

3Strength

If continuous U-shaped curved panels are used to enclose heat radiators, then the structural integrity is improved, but the processing difficulty increases

Engineering Contradiction:
Improvestructural integrityVSAvoidprocessing difficulty
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The continuous U-shaped curved panels are segmented into discrete modular sections that can be manufactured separately using standard fabrication processes. These segmented panels are then assembled through connection elements to form the complete enclosing structure, maintaining structural integrity while significantly reducing processing difficulty compared to manufacturing a single continuous curved panel.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The enclosed heat radiator structure employs nested panels where inner panels are positioned within outer panels, creating a multi-layer enclosed configuration. This nesting approach distributes structural loads across multiple components, maintaining overall structural integrity while allowing each individual panel to be simpler in shape and easier to manufacture.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 proposed structure achieves efficient heat conduction and uniform heating with a compact design, enhancing heat radiation and reducing assembly complexity, while also generating far infrared rays and negative ions for therapeutic benefits.

Implementation Method 1

The annular heat radiation assembly is used for heat conduction

Methodology Applied
Scientific EffectHeat conduction: Conduction (thermal)

Implementation Method 2

The ceramic heating element has a radiation rate generally greater than 85% at a room temperature (25°C to 150°C), has high photothermal conversion efficiency

Methodology Applied
Scientific EffectThermal radiation: Thermal Radiation

Implementation Method 3

After being absorbed by a human body, the far infrared can cause resonance in water molecules in the body to activate the water molecules

Methodology Applied
Scientific EffectResonance: Resonance

Implementation Method 4

If negative ions can be released in a hair cutting process, static electricity can be neutralized

Methodology Applied
Scientific EffectNegative ion generation: Ionisation

Data Source

PatentEP4529351B1High-efficiency heating module applied to hair dryer
Publication Date: 2026.03.25 DONGGUAN MEISHENG INTELLIGENT TECH CO LTD
  • EP4529351B1 patent drawingFigure 1
  • EP4529351B1 patent drawingFigure 2
  • EP4529351B1 patent drawingFigure 3

AI summary

The present disclosure relates to the technical field of hair dryers, and in particular, to a high-efficiency heating module applied to a hair dryer. The heating module includes a shell body with two run-through ends, an insulation bracket mounted in the shell body, and a heating main body fixedly mounted on the insulation bracket. The heating main body includes a heat conduction portion and a heating portion; the heat conduction portion includes a heat radiation inner cylinder, at least one layer of honeycomb-shaped heat radiation plate enclosed on an outer side of the heat radiation inner cylinder, and an outer heat radiation plate enclosed outside the outermost layer of honeycomb-shaped heat radiation plate; the heating portion includes a first heating film and a second heating film; the first heating film is sandwiched between the heat radiation inner cylinder and the honeycomb-shaped heat radiation plate, and the second heating film is sandwiched between the outer heat radiation plate and the honeycomb-shaped heat radiation plate; the heat radiation inner cylinder, the honeycomb-shaped heat radiation plate, and the outer heat radiation plate can all be made through an aluminum extrusion process; design purposes of small diameter, large length, and a large number of fins can be achieved; and the surface area can be greatly enlarged, thus fully radiating heat.