Non-Base Block Heat Sink With Press-Fitted Heat Pipes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional heat sinks with metal bottom blocks require complex electroplating processes, are costly, environmentally unfriendly, and inefficient due to spaced heat pipes that reduce heat transfer efficiency.
Innovation Solution
A non-bottom block heat sink design featuring a stack of radiation fins with press-fitted heat pipes and supporting ribs, eliminating the need for a metal bottom block, allowing for closer heat pipe arrangement and enhanced heat transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal bottom block is used to attach heat pipes, then the heat sink structure is stable and heat pipes can be accommodated, but the fabrication process becomes complex, cost increases, and environmental friendliness deteriorates due to electroplating requirements
Solution Approach 1:
The patent removes the metal bottom block from the heat sink structure, extracting the problematic component that required electroplating and complex fabrication. The heat pipes are directly attached to the radiation fins without needing a bottom block, thereby eliminating the electroplating process and simplifying manufacturing while maintaining structural integrity through direct mechanical attachment
Solution Approach 2:
The heat sink is segmented into independent radiation fins that can directly accommodate heat pipes through locating notches. This segmentation allows each fin to be independently designed and assembled, eliminating the need for a separate bottom block component and reducing overall fabrication complexity
2Ease of manufacture
If heat pipes are spaced apart in locating grooves on the metal bottom block, then the structure is simple to manufacture, but heat transfer efficiency deteriorates due to increased distance from heat source and reduced heat pipe density
Solution Approach 1:
The patent transitions from spacing heat pipes in a two-dimensional plane on a bottom block to arranging heat pipes in a three-dimensional configuration directly on the radiation fins. The locating notches on the fins allow heat pipes to be positioned closer together and at optimal distances from the heat source, increasing heat pipe density and improving heat transfer efficiency while maintaining manufacturing simplicity
Solution Approach 2:
The radiation fins are designed with locating notches at specific locations optimized for heat transfer. Each fin has notches positioned to accommodate heat pipes at optimal distances from the heat source, creating locally optimized heat transfer zones that maximize efficiency without complicating the overall structure
3Reliability
If a solid metal bottom block is used, then heat pipes can be accommodated and structured, but material consumption increases and weight increases
Solution Approach 1:
The metal bottom block is completely removed from the heat sink assembly, eliminating the heavy stationary component. Heat pipes are directly attached to the radiation fins, which are lighter and more efficient for the intended application. This extraction significantly reduces the overall weight of the heat sink while maintaining the ability to accommodate and structure heat pipes through the fin-based locating notches
Solution Approach 2:
The patent transitions from a homogeneous metal bottom block structure to a composite assembly of radiation fins and heat pipes. The radiation fins provide the structural framework while heat pipes are integrated directly, creating a lighter composite structure that maintains heat pipe accommodation capabilities without the weight penalty of a solid metal block
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 design reduces material consumption, weight, and cost while improving heat dissipation efficiency by enabling closer heat pipe packing and direct contact with the heat source.
Implementation Method 1
a plurality of heat pipes press-fitted into a series of locating notches at one peripheral edge of each of the radiation fins
Implementation Method 2
enabling absorbed heat energy to be transferred by the heat pipe to the radiation fin modules
Implementation Method 3
radiation fin modules for quick dissipating into the outside open air
Implementation Method 4
dissipating into the outside open air
Implementation Method 5
heat pipes press-fitted into a series of locating notches
Data Source
AI summary
A non-bottom block heat sink includes a radiation module formed of a rack of radiation fins, each radiation fin having a plurality of locating notches located on one peripheral edge thereof and a supporting rib disposed between each two adjacent locating notches, and a plurality of heat pipes each having heat receiving end press-fitted into the locating notches of the radiation fins and engaged with the supporting ribs and peripherally abutted against one another in flush the associating peripheral edge of each radiation fin and a heat discharging end extended from the heat receiving end and fastenable to the radiation fins or an external radiation fin module.