Thermal Dissipation Structure for Sealed Drive Units
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Solution Overview
Problem
Existing thermal dissipation structures for electric products are not suitable for applications requiring dust-proofness and water-proofness due to the ingress of dust and rainwater through intake and exhaust ports.
Innovation Solution
A thermal dissipation structure that includes a housing, a thermal dissipation mechanism with a thermal transfer part and a thermal dissipation part, and a seal member that seals between the housing and the thermal dissipation mechanism, ensuring that heat is transferred and dissipated while maintaining dust-proofness and water-proofness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If intake ports and exhaust ports are provided for thermal dissipation, then heat dissipation performance is improved, but dust-proofness and water-proofness deteriorate
Solution Approach 1:
The thermal dissipation system is segmented into two distinct parts: a thermal transfer part inside the sealed housing and a thermal dissipation part outside the housing. This segmentation allows heat to be transferred through the housing wall without creating openings, thus maintaining sealing while achieving thermal dissipation.
Solution Approach 2:
The housing wall acts as an intermediary medium that conducts heat from the internal heat-generating elements to the external environment. By using the housing wall itself as the heat transfer path, no additional openings are needed, preserving both sealing integrity and thermal dissipation functionality.
2Object-affected harmful factors
If the housing is completely sealed for dust-proofness and water-proofness, then protection against environmental factors is improved, but heat dissipation capability deteriorates
Solution Approach 1:
The housing wall serves dual functions with different local qualities: it provides sealing protection at the interface between internal and external environments, while simultaneously serving as a thermal conduction path for heat dissipation. This local differentiation of function resolves the contradiction between sealing and heat dissipation.
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 proposed thermal dissipation structure effectively transfers and dissipates heat while ensuring dust-proofness and water-proofness, making it suitable for applications where environmental sealing is critical.
Implementation Method 1
The thermal transfer part is configured to transfer heat generated by the heat-generating element
Implementation Method 2
the heat is discharged from the thermal dissipation part to the atmosphere outside the housing
Implementation Method 3
the heat is discharged from the thermal dissipation part to the atmosphere outside the housing
Data Source
AI summary
A thermal dissipation structure includes a housing, a thermal dissipation mechanism, and a seal member. The housing accommodates a heat-generating element. The thermal dissipation mechanism includes a thermal transfer part and a thermal dissipation part. The thermal transfer part is disposed inside the housing. The thermal transfer part is configured to transfer heat generated by the heat-generating element. The thermal dissipation part is disposed outside the housing. The seal member seals between the housing and the thermal dissipation mechanism.