Heat conversion device
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Solution Overview
Problem
The existing coupling structure between a heat sink and a fan in heat conversion devices leads to noise and vibration issues due to direct contact, and the fan may be bent by strong external forces during assembly.
Innovation Solution
A coupling structure using elastic coupling members with a shaft, first and second fixing portions, and a separating portion to space the heat sink and fan, reducing direct contact and allowing for easier assembly, with the coupling members having a specific design to absorb vibrations and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screws are used to directly couple the heat sink and fan, then the assembly is firmly fixed, but noise and vibration occur due to direct contact
Solution Approach 1:
The patent introduces an elastic coupling member as an intermediary component between the heat sink and fan. This coupling member includes a shaft with a first fixing portion that contacts the heat sink and a second fixing portion that contacts the fan, with a separating portion between them. The elastic material absorbs vibrations and prevents direct contact, thereby reducing noise and vibration while maintaining firm fixation.
2Strength
If screws are used to couple the heat sink and fan, then strong external forces are applied during assembly, but the fan may be bent due to excessive force
Solution Approach 1:
The patent changes the mechanical parameters of the coupling system by using an elastic coupling member with specific elastic modulus (1×10³ to 30×10³ kgf/cm²) and Shore hardness (40 to 90 Hs). This allows the coupling to provide sufficient fixing strength while distributing assembly forces evenly, preventing excessive localized stress that could bend the fan blades.
3Device complexity
If the heat sink and fan are in direct contact, then the structure is simple, but noise and vibration problems occur
Solution Approach 1:
The patent introduces an elastic coupling member as an intermediary component between the heat sink and fan. This coupling member includes a shaft with a first fixing portion that contacts the heat sink and a second fixing portion that contacts the fan, with a separating portion between them. The elastic material absorbs vibrations and prevents direct contact, thereby reducing noise and vibration while maintaining firm fixation.
4Ease of manufacture
If traditional screw coupling is used, then assembly is straightforward, but the fan is susceptible to bending from strong external forces
Solution Approach 1:
The patent changes the mechanical parameters of the coupling system by using an elastic coupling member with specific elastic modulus (1×10³ to 30×10³ kgf/cm²) and Shore hardness (40 to 90 Hs). This allows the coupling to provide sufficient fixing strength while distributing assembly forces evenly, preventing excessive localized stress that could bend the fan blades.
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 solution results in a heat conversion device with improved heat conversion performance, reduced noise, and minimized vibration, while allowing for easier assembly and increased durability.
Implementation Method 1
a plurality of coupling members having an elastic modulus ranging from 1×10³ kgf/cm² to 30×10³ kgf/cm² and fixing the heat sink and the fan
Implementation Method 2
elements which use the Seebeck effect in which an electromotive force is generated due to a difference in temperature
Implementation Method 3
elements which use the Peltier effect in which heating or heat absorption occurs due to a current
Data Source
AI summary
A heat conversion device according to an embodiment of the present invention comprises: a plurality of P-type thermoelectric legs and a plurality of N-type thermoelectric legs which are electrically connected and arranged in an array; an insulating part disposed on one surface of the plurality of P-type thermoelectric legs and the plurality of N-type thermoelectric legs; a heat sink disposed on the insulating part; a fan disposed spaced a predetermined distance from the heat sink; and a plurality of fastening members having moduli of elasticity of 1*103 kgf/cm2 to 30*103 kgf/cm2 and fixing the heat sink and the fan. Each one of the fastening members comprises: a shaft part; a first fixed part which is disposed at one end of the shaft part and fixed to the heat sink; a second fixed part which protrudes from an outer circumferential surface of the shaft part and is fixed to the fan; and a separating part which protrudes from the outer circumferential surface of the shaft part and is disposed between the heat sink and the fan to separate the heat sink and the fan, wherein the width of the second fixed part increases toward the first fixed part, and the shaft part, the first fixed part, the second fixed part, and the separating part are integrally formed.