Soundproof Heat-Dissipation Cover for Heat and Vibration Isolation
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Solution Overview
Problem
Conventional soundproof covers for vibration sources like engines and motors face issues with heat dissipation, as the air layer formed between the cover and the object can trap heat, leading to deteriorated thermal performance and secondary sound radiation.
Innovation Solution
A soundproof heat-dissipation cover with a heat-dissipation contact surface having a density of 0.1 g/cm3 to 2.0 g/cm3 and thermal conductivity of 0.1 W/mK to 2.0 W/mK, featuring a maximum height roughness of 50 μm to 300 μm, which reduces contact area and air layer thickness, combined with a reinforcement member for improved positioning and heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a cover with sound absorbing material is attached to a vibration source, then soundproofing performance is improved, but heat dissipation performance deteriorates due to heat being trapped by the air layer
Solution Approach 1:
The invention applies different surface qualities to different regions of the cover. The heat-dissipation contact surface has a rough surface with specific maximum height roughness (50 μm to 300 μm) to reduce contact area and improve heat dissipation, while other portions of the cover maintain smooth surfaces for sound absorption. This local differentiation allows the cover to simultaneously achieve soundproofing and heat dissipation functions.
Solution Approach 2:
The invention changes the physical parameters of the heat-dissipation contact surface by controlling its roughness within a specific range (maximum height roughness of 50 μm to 300 μm). This parameter change reduces the contact area between the cover and the vibration source, thereby improving heat dissipation performance while maintaining soundproofing functionality.
2Object-affected harmful factors
If an air layer is formed between the target object and the cover, then sound attenuation is improved, but heat trapping occurs and heat-dissipation performance deteriorates
Solution Approach 1:
The invention creates local quality differences by providing a rough heat-dissipation contact surface in specific areas while maintaining smooth surfaces elsewhere. The rough surface region reduces contact area and promotes heat dissipation, while smooth regions maintain sound absorption capabilities, allowing the air layer to attenuate sound without excessive heat trapping.
3Temperature
If the contact area between the cover and target object is increased, then heat dissipation is improved, but vibration transmission increases and soundproofing performance deteriorates
Solution Approach 1:
The invention optimizes the contact area by controlling the surface roughness parameters (maximum height roughness of 50 μm to 300 μm) of the heat-dissipation contact surface. This parameter optimization reduces the actual contact area between the cover and target object, thereby reducing vibration transmission and improving soundproofing performance while maintaining adequate heat dissipation capability.
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
Enhances both soundproofing and heat dissipation performance by reducing vibration transmission and heat accumulation, while maintaining effective thermal conductivity.
Implementation Method 1
a heat-dissipation contact surface, having a contact part that comes into contact with the target object... A thermal conductivity of the soundproof heat-dissipation cover is 0.1 W/mK to 2.0 W/mK
Implementation Method 2
A maximum height roughness of the heat-dissipation contact surface is 50 μm to 300 μm
Implementation Method 3
a cover including a sound absorbing material to a vibration source such as a vehicle engine, a motor... sounds emitted from the target object are absorbed
Implementation Method 4
an air layer is formed between the target object and the cover to serve as an attenuation layer. With the air layer, the sounds are further attenuated
Data Source
AI summary
A soundproof heat-dissipation cover (3) that covers a target object (2), and includes a heat-dissipation contact surface (10) having a contact part (12) contacting the target object (2). The density is 0.1 g/cm3 to 2.0 g/cm3, the thermal conductivity is 0.1 W/m to 2.0 W/mK, and the maximum height roughness (Rz) of the heat-dissipation contact surface (10) is 50 μm to 300 μm. With an air layer formed between the surface of the target object (2) and the heat-dissipation contact surface (10) of the soundproof heat dissipation cover (3), the contact area between the surface of the target object (2) and the heat-dissipation contact surface (10) of the soundproof heat-dissipation cover (3) can be reduced, the vibration received by the soundproof heat-dissipation cover (3) from the surface of the target object (2) can be suppressed, and the secondary radiation sound from the soundproof heat-dissipation cover (3) can be suppressed.