Heat Dissipation Structure With Grooved Fixed Member
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Solution Overview
Problem
Conventional heat dissipation structures using liquid metal are labor-intensive and costly due to the need for silicon-based paste application or dispensing processes to prevent liquid metal from spilling and causing short circuits.
Innovation Solution
A heat dissipation structure featuring a fixed member with a heat dissipation member on one surface and grooves on the opposing surface, where the grooves surround the heat dissipation member, allowing for efficient heat dissipation while preventing liquid metal from spilling, with a groove-to-heat dissipation member volume ratio of 0.9 to 1.6 and groove distances less than 1.0 mm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If silicon-based paste material is applied around heat generating source to prevent liquid metal from spilling, then liquid metal containment is improved, but production time and labor intensity increase
Solution Approach 1:
The fixed member with grooves provides self-contained liquid metal prevention through its structural design, eliminating the need for external paste application or dispensing processes. The grooves automatically contain the liquid metal within the heat dissipation member during phase change, making the system self-sufficient and removing labor-intensive steps from the production process.
Solution Approach 2:
The grooves are pre-formed in the fixed member during manufacturing, creating the containment structure before the heat dissipation member is assembled. This preliminary preparation of the containment structure eliminates the need for post-assembly paste application or curing processes, reducing production time and labor requirements.
2Reliability
If silicon-based paste material is applied around heat generating source to prevent liquid metal from spilling, then liquid metal containment is improved, but production cost increases
Solution Approach 1:
The fixed member with integrated grooves provides self-contained liquid metal prevention through its structural design, eliminating the need for external paste application or dispensing processes. The grooves automatically contain the liquid metal within the heat dissipation member during phase change, making the system self-sufficient and removing labor-intensive steps from the production process.
Solution Approach 2:
The grooves are pre-formed in the fixed member during manufacturing, creating the containment structure before the heat dissipation member is assembled. This preliminary preparation of the containment structure eliminates the need for post-assembly paste application or curing processes, reducing production time and labor requirements.
3Reliability
If dispensing process is used to cure electronic components around heat generating source to prevent short circuits, then short circuit prevention is improved, but assembly complexity increases
Solution Approach 1:
The fixed member with grooves provides self-contained liquid metal prevention through its structural design, eliminating the need for external paste application or dispensing processes. The grooves automatically contain the liquid metal within the heat dissipation member during phase change, making the system self-sufficient and removing labor-intensive steps from the production process.
Solution Approach 2:
The grooves are pre-formed in the fixed member during manufacturing, creating the containment structure before the heat dissipation member is assembled. This preliminary preparation of the containment structure eliminates the need for post-assembly paste application or curing processes, reducing production time and labor requirements.
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 simplifies the heat dissipation structure, reducing production costs and assembly time, and enhancing flexibility by accommodating the phase change of liquid metal without additional equipment, thus improving the heat dissipation efficiency and preventing spills.
Implementation Method 1
a heat dissipation member (1), and a fixed member (2)... The heat dissipation member (1) is disposed on the first surface (21)... at least one part of the second surface (22) corresponds to one side of at least one heat generating source (3) and is disposed adjacent to the one side of the at least one heat generating source (3)
Implementation Method 2
when liquid metal is used a material of heat dissipation interface... The heat dissipation member (1) is formed by liquid metal
Data Source
AI summary
A heat dissipation structure includes a heat dissipation member and a fixed member. The fixed member has a first surface and a second surface oppositely. The heat dissipation member is disposed on the first surface, and one part of the second surface corresponds to one side of at least one heat generating source and is disposed adjacent to the one side of the heat generating source. The first surface has a first zone surrounded by a second zone. The heat dissipation member is disposed on the first zone corresponding to the heat generating source. The second zone has at least one groove arranged around one part of the first zone. A distance between one side of the groove adjacent to the first zone and the first zone is less than 1.0 mm, and a volume ratio of the groove to the heat dissipation member is 0.9 to 1.6.