Electric Junction Box Thermal Insulation via Partition Through-Holes
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Solution Overview
Problem
Conventional electric junction boxes with small gaps between partition walls provide limited thermal insulation while increasing the size of the case to enhance insulation, which is not advantageous.
Innovation Solution
An electric junction box design featuring through-holes between part-receiving chambers with enlarging portions at the lower end, allowing for efficient heat dissipation and thermal insulation without excessive case size increase, and incorporating a lower cover with a notch for air supply and fluid drainage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the gap between the two partition walls is increased to enhance thermal insulation, then the thermal insulation effect is improved, but the size of the case increases
Solution Approach 1:
The partition wall is segmented into an insulating layer and a heat dissipation structure with through-holes. This segmentation allows the insulating layer to provide thermal insulation while the through-holes enable heat dissipation, resolving the contradiction between insulation and size by functional division rather than increasing gap distance
Solution Approach 2:
The partition wall has different local structures: an insulating layer for thermal insulation and through-holes for heat dissipation. This local quality differentiation allows different regions of the same structure to serve different functions, achieving both insulation and compact size
2Temperature
If the gap between the two partition walls is increased to improve thermal insulation, then heat transfer between chambers is reduced, but the device complexity increases
Solution Approach 1:
The insulating layer and heat dissipation structure are merged into a single integrated partition wall design. This merging reduces device complexity by combining multiple functions into one structure rather than using separate components for insulation and heat management
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 thermal insulation between neighboring chambers by facilitating heat release and fresh air supply, while preventing fluid entry and maintaining a compact case size.
Implementation Method 1
The enlarging portion is disposed at a lower end of the through-hole and has increasing cross-sectional area as approaching to the lower end of the through-hole
Implementation Method 2
the partition wall 206 is defined by two walls 206a and 206b which are slightly spaced apart from each other, and fluid adhered to the first cover 204 and the second cover 205 falls off between the two walls 206a and 206b
Data Source
AI summary
The invention provides an electric junction box with an enhanced thermal insulation between neighboring part-receiving chambers without causing excessive increase in the size of a case. In order to attain the objective, there is provided an electric junction box, which includes a case provided with a case body, a lower cover coupled to the lower end of the case body, and first and second upper covers and coupled to the upper end of the case body. The case includes neighboring first and second part-receiving chambers and. A through-hole is located between the first and second part-receiving chambers and extends from an upper end of the case to a lower end of the case. The through-hole has an enlarging portion, which is disposed at a lower end thereof and has increasing cross-sectional area as approaching to the lower end of the through-hole.