Spiral-Cooled Heating Light Modules for Uniform Workpiece Irradiation

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional heat treatment devices are optimized for specific workpiece sizes, leading to uneven heating and cooling issues when handling workpieces of varying sizes and shapes, and lack flexibility in accommodating multiple processes in a single device.

Innovation Solution

A heating light source device with modular light-emitting elements and a cooling member having a spiral cooling channel that adjusts to workpiece size and shape, ensuring consistent cooling and uniform irradiation across the workpiece surface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If light-emitting element units are arranged on a support plate to handle different workpiece sizes, then adaptability to various workpiece sizes is improved, but uniform cooling of the light-emitting elements becomes difficult resulting in temperature differences and uneven brightness

Engineering Contradiction:
Improveadaptability to various workpiece sizesVSAvoidtemperature uniformity of light-emitting elements
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The cooling channel is designed with a spiral shape that dynamically adapts to the radial arrangement of light-emitting elements. The cooling medium flows from the center outward along the spiral path, ensuring that elements at different radial positions receive proportional cooling, maintaining temperature uniformity while accommodating various workpiece sizes through modular arrangement

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The cooling channel provides localized cooling optimization by positioning the spiral path to match the radial distribution of light-emitting elements. Each segment of the spiral channel delivers cooling medium to the corresponding radial zone, ensuring that elements regardless of their position on the support plate maintain consistent operating temperatures

Inventive Principle:
Principle #3Local quality

2Manufacturing precision

If conventional heat treatment devices are optimized for specific workpiece sizes, then heating uniformity for that size is improved, but the device cannot be readily applicable to workpieces of other sizes

Engineering Contradiction:
Improveheating uniformityVSAvoidapplicability to different workpiece sizes
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The support plate structure with radially arranged light-emitting elements and spiral cooling channels creates a universal heating system. The modular design allows the same configuration to maintain heating uniformity across different workpiece sizes by adjusting the radial arrangement density, eliminating the need for device redesign when handling various workpiece dimensions

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

3Ease of operation

If light-emitting element units are moved or modified in position, then arrangement flexibility is improved, but the cooling mechanism does not respond to the movement resulting in insufficient cooling

Engineering Contradiction:
Improvearrangement flexibility of light-emitting elementsVSAvoidcooling performance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The spiral cooling channel design dynamically adapts to the radial position of light-emitting elements. When elements are rearranged radially on the support plate, the spiral cooling path automatically provides appropriate cooling distribution, maintaining reliable cooling performance while allowing flexible repositioning of elements for different operational requirements

Inventive Principle:
Principle #15Dynamics

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 device provides uniform heating and cooling for workpieces of various sizes and shapes, enhancing process flexibility and efficiency by maintaining consistent light intensity and temperature distribution.

Implementation Method 1

a cooling member having a first main surface on which the light-emitting element substrate is disposed and is in contact with the back side surface of the light-emitting element substrate, and a second main surface that is located opposite to the first main surface; and including a cooling channel that is formed inside the cooling member and that communicates cooling medium for cooling the light-emitting elements

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 2

a plurality of light-emitting elements mounted on the placement surface of the light-emitting element substrate

Methodology Applied
Scientific EffectLight Emitting Diode: Light Emitting Diode

Implementation Method 3

a heating light source device for heating a workpiece with optical irradiation

Methodology Applied
Scientific EffectOptical irradiation heating: Heating

Data Source

PatentUS12439480B2Heating light source device, heating light source module and optical heating system
Publication Date: 2025.10.07 USHIO INC
  • US12439480B2 patent drawing
  • US12439480B2 patent drawing
  • US12439480B2 patent drawing

AI summary

A heating light source device includes a plurality of heating light source modules; each of the heating light source modules includes; a light-emitting element substrate having a placement surface and a back side surface, the back side surface being opposite to the placement surface; a plurality of light-emitting elements mounted on the placement surface; and a cooling member being in contact with the back side surface and including a cooling channel formed inside the cooling member and that communicates cooling medium for cooling the light-emitting elements, an inlet port that introduces the cooling medium into the cooling channel, an outlet port that discharges the cooling medium to the outside of the cooling member; and the cooling channel has a spiral shape being gradually from a center portion side of the light-emitting element substrate to a circumferential edge portion side thereof when viewed from a direction orthogonal to the placement surface.