Heat Pipe Coplanar Alignment in Heat Dissipation Unit
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Solution Overview
Problem
Conventional heat dissipation units with heat pipes and heat sinks face issues of poor flatness and non-uniform thickness, leading to over-milling and damage of the heat pipe, which compromises heat transfer efficiency.
Innovation Solution
A heat dissipation unit comprising a base seat with a channel and a heat pipe, where the heat pipe is aligned to form coplanar faces with the base seat, utilizing deformed protrusions to ensure precise contact and enhance heat transfer paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the heat pipe is fixed in the channel by passing through or perpendicularly positioning on the heat sink, then the heat dissipation area is enlarged, but the flatness is poor causing heat resistance and the heat pipe protrudes from the contact section
Solution Approach 1:
The heat pipe transitions from a perpendicular arrangement to a horizontal arrangement within the channel, changing the dimensional orientation of heat transfer. This allows the heat pipe to be embedded within the base seat rather than protruding, solving the flatness issue while maintaining heat dissipation area through the horizontal extension within the channel structure.
Solution Approach 2:
The heat pipe is nested within the channel of the base seat, with the channel providing a housing that contains the heat pipe. This nesting arrangement eliminates protrusion and ensures the contact surface remains flat, while the channel structure provides both mechanical support and thermal conduction path.
2Manufacturing precision
If the protruding parts of the heat pipe are milled off to improve flatness, then the contact surface flatness is improved, but the heat pipe wall is often over-milled causing damage and loss of function
Solution Approach 1:
The channel is pre-formed with the exact dimensions and shape needed to accommodate the heat pipe, eliminating the need for subsequent milling operations. The heat pipe is inserted into the pre-designed channel space, ensuring proper fit and flat contact surface without risking over-milling damage to the heat pipe wall.
Solution Approach 2:
The channel acts as an intermediary structure between the heat pipe and the base seat, providing a precisely fitted housing that ensures proper positioning and contact. This intermediary channel structure eliminates the need for direct milling of the heat pipe, protecting its integrity while achieving the required flatness.
3Manufacturing precision
If the heat pipe is positioned horizontally in the channel with deformed protrusions, then the coplanar precision is improved and heat transfer efficiency is enhanced, but the device complexity increases
Solution Approach 1:
The heat pipe undergoes localized parameter change through deformation of protrusions that are pressed into the channel. This deformation modifies the physical state and shape of specific regions of the heat pipe, enabling precise coplanar positioning and enhanced thermal contact without requiring complex overall structural changes.
Solution Approach 2:
The deformation and protrusion formation are applied locally to specific areas of the heat pipe rather than uniformly across the entire structure. This localized modification achieves the required precision at the contact interface while maintaining the simplicity of the overall heat pipe structure and minimizing device complexity.
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
Improves the precision of the heat transfer interface, preventing damage to the heat pipe and maintaining its functionality while enhancing heat dissipation efficiency.
Implementation Method 1
The heat pipe is disposed in the channel and extends in a horizontal direction. The heat pipe has a first pressing face and a connecting face.
Implementation Method 2
heat conduction speed, a heat pipe is combined with the heat sink... transfer the heat to the heat sink with larger heat dissipation area to dissipate the heat
Implementation Method 3
the heat of the heat source can be respectively perpendicularly transferred through the heat contacting face of the base seat to the heat dissipation face
Data Source
AI summary
A heat dissipation unit includes a heat pipe and a base seat. The base seat has a first side and a second side. The second side is formed with a channel and multiple perforations in communication with the first and second sides. The heat pipe has a heat absorption section and a conduction section. The conduction section extends from the heat absorption section in a direction to at least one end of the heat pipe distal from the heat absorption section. Several parts of the heat pipe corresponding to the perforations are received in the perforations and flush with the first side of the base seat. The heat dissipation unit improves the shortcoming of the conventional heat dissipation component that the coplanar precision between the heat pipe and the protruding platform of the base seat is hard to control.