Detection Device Thermal Insulation Light Source Heat

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Solution Overview

Problem

In machine vision inspection systems, the heat generated by light sources can affect the operation and accuracy of detection modules, potentially leading to module failure.

Innovation Solution

The detection device incorporates a substrate with a connecting portion that reduces heat transfer from the light source to the detection module, using a thermal insulation layer and heat dissipation module to further manage heat dissipation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If a light source is used to illuminate the object for image acquisition, then the detection module can capture images for inspection, but the heat generated by the light source may reach the detection module and affect its operation and accuracy

Engineering Contradiction:

Improvelight illuminationVSAvoidheat accumulation

Core Design Contradiction:

Illumination intensityVSTemperature

Solution Approach 1:

The substrate is divided into a first base plate for mounting the light source and a second base plate for mounting the detection module, physically separating the heat-generating component from the heat-sensitive component while maintaining functional connectivity through the connecting portion

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A connecting portion with smaller cross-sectional area is introduced as an intermediary between the light source and detection module, acting as a thermal barrier to reduce heat transfer while still providing structural support and electrical connectivity

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If the light source is positioned close to the detection module for efficient image capture, then the inspection system can operate effectively, but the heat from the light source may cause failure of the detection module

Engineering Contradiction:

Improveinspection efficiencyVSAvoidmodule reliability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The substrate is segmented into separate base plates for the light source and detection module, allowing both components to be positioned on the same substrate for efficient operation while maintaining physical separation to protect reliability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The connecting portion serves as a thermal intermediary that allows structural and electrical connectivity for efficient operation while its reduced cross-sectional area provides thermal isolation to maintain module reliability

Inventive Principle:

Principle #24Intermediary (Mediator)

3Strength

If the connecting portion has a larger cross-sectional area for better structural support, then the substrate is more stable, but more heat is transferred from the light source to the detection module

Engineering Contradiction:

Improvestructural supportVSAvoidheat transfer

Core Design Contradiction:

StrengthVSObject-affected harmful factors

Solution Approach 1:

The connecting portion has different cross-sectional areas at different locations: a larger area at the light source end for structural support and a smaller area toward the detection module to reduce heat transfer, creating non-uniform local properties to address conflicting requirements

Inventive Principle:

Principle #3Local quality

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 configuration effectively reduces heat accumulation on the detection module, enhancing its operational accuracy and reliability by minimizing the risk of heat-induced malfunctions.

Implementation Method 1

using a thermal insulation layer and heat dissipation module to further manage heat dissipation

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 2

using a thermal insulation layer and heat dissipation module to further manage heat dissipation

Methodology Applied

Scientific EffectHeat dissipation: Heat Sink

Data Source

PatentUS12282247B2Detection device preventing damage to detection module from heat generated by light source

Publication Date: 2025.04.22 HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO LTD

AI summary

A detection device includes a substrate, a light source, a detection module, and a heat dissipation module. The substrate includes a first base plate, a second base plate, and at least one connecting portion connecting the first base plate to the second base plate. The light source is disposed on the first base plate. The detection module is disposed on the second base plate. The first base plate has a first surface towards the at least one connecting portion, and the at least one connecting portion has a second surface towards the first base plate. The second surface is connected to a portion of the first surface. The heat dissipation module is disposed on the at least one connecting portion and/or the second base plate, and the influence of heat on proper operation of the detection device is thus prevented.