Fuse Connector Housing With Convex Heat-Dissipation Structure
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Solution Overview
Problem
Connectors with built-in fuses face challenges in dissipating heat generated by the fuse during energization, which can lead to thermal effects on the housing and surrounding components due to inadequate heat dissipation.
Innovation Solution
The connector design includes a housing with a convex portion that accommodates the fuse, allowing heat generated by the fuse to be dissipated to the surroundings and absorbed by a concave portion on the mating part, enhancing heat dissipation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the fuse is accommodated inside the housing, then the connector structure is compact and integrated, but heat dissipation from the fuse becomes difficult
Solution Approach 1:
The housing is segmented into multiple functional regions: a fitting portion for connection, an internal space for wire routing, and a convex portion with a hollow cavity specifically for fuse accommodation. This segmentation allows each region to perform its dedicated function optimally while maintaining overall integration.
Solution Approach 2:
The convex portion acts as an intermediary structure between the fuse and the external environment. It provides a dedicated cavity that positions the fuse strategically, enabling heat to be conducted from the fuse through the convex portion's wall to the external atmosphere, thus mediating the heat transfer process.
2Device complexity
If the fuse is accommodated inside the housing, then the connector has a compact design, but thermal effects on the housing and surrounding components increase
Solution Approach 1:
The fuse is extracted from the general internal space and placed into a dedicated convex portion with its own hollow cavity. This extraction isolates the heat-generating fuse from the main housing body and surrounding components, preventing thermal effects from propagating to sensitive areas while maintaining the compact overall design.
Solution Approach 2:
The convex portion is designed with specific local characteristics: it protrudes from the housing body, has a hollow cavity for fuse placement, and its wall structure facilitates heat conduction to the external environment. This local quality optimization ensures effective heat management at the fuse location without compromising the overall compact design.
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 effectively dissipates heat generated by the fuse when the connector is energized, reducing thermal effects on the housing and components, and improving the overall heat dissipation properties compared to traditional designs without a mating part.
Implementation Method 1
When the connector with a built-in fuse is energized, a temperature of a conductive path (particularly, a fused portion of the fuse) in the connector increases due to Joule heat generated by the energization
Implementation Method 2
heat generated by the fuse to be dissipated to the surroundings and absorbed by a concave portion on the mating part
Data Source
AI summary
There are provided a connector and a mounting structure, the connector including: a terminal fitting; an electric wire connected to the terminal fitting; a housing that includes a fitting portion having a shape protruding in a fitting direction with a mating part and accommodating the terminal fitting, an outer wall portion defining an internal space in which the electric wire is routed, and a hollow convex portion formed by a part of the outer wall portion protruding outward to have a convex shape in the fitting direction; and a fuse that includes a fused portion accommodated in a hollow portion of the convex portion and is connected to the electric wire.