Thermal Module Base With Pressing Arms For Heat Pipe Assembly

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Solution Overview

Problem

Conventional thermal modules have high manufacturing costs, poor heat transfer efficiency, and low assembling strength due to complex processing procedures and thermal resistance caused by clearance between heat-dissipation elements.

Innovation Solution

A thermal module design featuring a base with a longitudinal receiving recess and alternating elevated and sunken areas, where the heat pipe is clamped by extended arms to enhance fitting tightness and reduce thermal resistance, eliminating the need for fastening elements like screws.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If welding is used to assemble heat-dissipation elements, then assembling strength is improved, but manufacturing cost increases and device complexity increases

Engineering Contradiction:
Improveassembling strengthVSAvoidmanufacturing cost
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The patent replaces the welding process (thermal/chemical joining) with a mechanical pressing assembly process. The base and heat pipe are assembled through direct mechanical pressure without welding, eliminating the need for complex welding procedures and reducing manufacturing costs while maintaining assembling strength

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the assembly parameter from thermal/chemical bonding (welding) to mechanical pressure bonding. By controlling the pressing force and contact pressure, the assembly achieves sufficient strength without the complexity and cost of welding operations

Inventive Principle:
Principle #35Parameter changes

2Strength

If screws are used to fasten heat-dissipation elements, then assembling strength is improved, but device complexity increases and manufacturing cost increases

Engineering Contradiction:
Improveassembling strengthVSAvoiddevice complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the need for separate fastening elements (screws) from the assembly system. The base structure itself provides the fastening function through its receiving recess and pressing mechanism, simplifying the device by removing unnecessary components

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges the fastening function into the base structure itself. The base combines the support function and the fastening function in one integrated component, eliminating the need for separate screws or fasteners and reducing device complexity

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If clearance is maintained between base and heat pipe, then assembling ease is improved, but heat transfer efficiency deteriorates

Engineering Contradiction:
Improveassembling easeVSAvoidheat transfer efficiency
Core Design Contradiction:
Ease of operationVSLoss of energy

Solution Approach 1:

The patent changes the contact parameter between base and heat pipe from having clearance to having intimate contact. By designing the receiving recess to match the heat pipe dimensions and applying pressing force, the contact pressure eliminates clearance and minimizes thermal resistance, dramatically improving heat transfer efficiency

Inventive Principle:
Principle #35Parameter changes

4Ease of manufacture

If flat smooth surfaces are used for contact between base and heat pipe, then manufacturing ease is improved, but assembling strength deteriorates

Engineering Contradiction:
Improvemanufacturing easeVSAvoidassembling strength
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

The patent introduces a curved pressing surface (arc-shaped pressing portion) instead of a flat surface. This curved surface concentrates the pressing force and creates a mechanical interlocking effect with the heat pipe, significantly enhancing assembling strength while maintaining manufacturing simplicity

Inventive Principle:
Principle #14Spheroidality (Curvature)

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 design significantly enhances assembling strength, reduces manufacturing costs, and improves heat transfer efficiency by eliminating clearance and thermal resistance, while allowing for secure assembly without screws.

Implementation Method 1

The first and the second extended arm are bent under a force to hold down the heat pipe in the receiving recess

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 2

The contact surfaces between the base and the heat pipe are substantially flat and smooth surfaces that have relatively small frictional force between them

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS9327369B2Method of manufacturing thermal module with enhanced assembling structure
Publication Date: 2016.05.03 ASIA VITAL COMPONENTS CO LTD
  • US9327369B2 patent drawing
  • US9327369B2 patent drawing
  • US9327369B2 patent drawing

AI summary

A thermal module with enhanced assembling structure includes a base and a heat pipe. The base is formed on a middle portion with a longitudinal receiving recess, which has two end portions forming two supporting portions and a middle portion formed into an opening. A first and a second extended arm are formed at junctions between the receiving recess and two longitudinal sides of the opening. Wall surfaces of the first and second extended arms adjacent to the longitudinal sides of the opening are formed with alternating elevated and sunken areas. The heat pipe is held down in the receiving recess by the first and second extended arms to fitly engage with the elevated and sunken areas. Therefore, there is an increased fitting tightness between the heat pipe and the base to ensure enhanced assembling strength of the thermal module and reduce the manufacturing cost thereof.