Dispensing Apparatus Internal Material Detection for Heat-Dissipating Resin

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Solution Overview

Problem

There is a need for a method to determine the suitability of a dispensing apparatus for heat-dissipating materials, particularly for predicting the lifetime and durability due to abrasion, especially in high-power battery modules, which requires high heat-dissipation performance and is applicable to irregular surfaces while minimizing thermal resistance.

Innovation Solution

A method involving the detection of internal materials from the heat-dissipating material discharged from the dispensing apparatus, where suitability is determined based on the detected amount of materials such as iron, with specific thresholds, and the use of a dispensing apparatus equipped with static mixers and supply cartridge portions for efficient mixing and injection of thermally conductive resin compositions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If the filling amount of heat-dissipation filler is increased to achieve high heat-dissipation performance, then thermal conductivity is improved, but viscosity increases making it difficult to fill irregular portions

Engineering Contradiction:
Improveheat-dissipation performanceVSAvoidfillability
Core Design Contradiction:
TemperatureVSEase of operation

Solution Approach 1:

The patent changes the physical-chemical parameters of the heat-dissipating material by controlling the particle size distribution, surface treatment, and composition ratio of fillers to achieve optimal balance between thermal conductivity and viscosity, enabling both high heat dissipation performance and easy fillability into irregular portions

Inventive Principle:
Principle #35Parameter changes

2Temperature

If the thickness of the heat-dissipating material is reduced to minimize thermal resistance, then heat conduction efficiency is improved, but the material becomes more difficult to handle and apply

Engineering Contradiction:
Improvethermal resistanceVSAvoidhandleability
Core Design Contradiction:
TemperatureVSEase of operation

Solution Approach 1:

The patent optimizes the rheological parameters and viscosity characteristics of the heat-dissipating material to enable thin-layer application while maintaining ease of handling and application, allowing minimal thermal resistance with practical applicability

Inventive Principle:
Principle #35Parameter changes

3Productivity

If a dispensing apparatus with internal material contact is used for injecting heat-dissipating material, then injection efficiency is improved, but abrasion occurs reducing lifetime and durability

Engineering Contradiction:
Improveinjection efficiencyVSAvoidlifetime
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent extracts and removes the internal material from the dispensing apparatus contact surfaces, replacing it with abrasion-resistant materials or coatings, thereby eliminating the source of abrasion while maintaining injection efficiency

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses composite materials with high wear resistance and thermal stability in the dispensing apparatus internal components, combining multiple material properties to achieve both injection efficiency and extended service life by resisting abrasion from the heat-dissipating material

Inventive Principle:
Principle #40Composite materials

Data Source

PatentUS11598325B2Method for determining dispensing apparatus for heat-dissipating material
Publication Date: 2023.03.07 LG CHEM LTD
  • US11598325B2 patent drawing
  • US11598325B2 patent drawing
  • US11598325B2 patent drawing

AI summary

A method for determining a dispensing apparatus for a heat-dissipating material and according to one aspect of the present invention is provided. The method for determining a dispensing apparatus for a heat-dissipating material includes detecting an internal material of a dispensing apparatus from a heat-dissipating material discharged from the dispensing apparatus; and determining suitability of the dispensing apparatus based on the detected amount of the internal material.