Shielded Connector Heat Path for Blocking Member Dissipation
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Solution Overview
Problem
Conventional connectors with shield shells face challenges in efficiently releasing heat generated by blocking members, as the heat dissipation path often involves conducting heat through the casing and atmosphere before reaching the shield shell.
Innovation Solution
The connector design incorporates a solid heat conductive member with insulating properties, which is placed in direct contact with the exposed surfaces of fastening members and the inner surface of the shield shell, allowing heat from the blocking member to be directly transferred and released through the shield shell.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heat dissipation is achieved through the casing and atmosphere to the shield shell, then heat can be released, but the heat dissipation efficiency is low due to poor thermal conductivity of the atmosphere
Solution Approach 1:
A heat conductive member with insulating properties is introduced as an intermediary substance between the blocking member and the shield shell. This member replaces the atmosphere as the heat transfer medium, providing a continuous thermal conduction path from the blocking member through the heat conductive member to the shield shell, thereby eliminating the thermal break caused by atmospheric gaps.
Solution Approach 2:
The thermal conductivity parameter of the medium between the blocking member and shield shell is changed from that of the atmosphere (poor conductor) to that of the heat conductive member (good conductor). This parameter change transforms the heat transfer mechanism from inefficient atmospheric conduction to efficient solid-phase thermal conduction, significantly improving heat dissipation efficiency.
2Temperature
If a heat conductive member is introduced to improve heat dissipation, then thermal conductivity improves, but the device structure becomes more complex
Solution Approach 1:
The heat conductive member simultaneously serves multiple functions: it provides thermal conduction from the blocking member to the shield shell, electrical insulation between conductive components, and structural filling to occupy and stabilize the space between components. By combining these functions in a single element, the design avoids adding separate components for each function, thereby limiting the increase in structural complexity.
Solution Approach 2:
The heat conductive member is made of composite material possessing both heat conductive properties and insulating properties. This composite material allows the single component to fulfill both thermal and electrical requirements, eliminating the need for separate heat conductive and insulating components, thus simplifying the overall structure while achieving the desired thermal performance.
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 enables efficient heat dissipation from the blocking member to the outside through the shield shell, bypassing the atmosphere and improving heat conductivity, thus facilitating easier and more effective heat release.
Implementation Method 1
a heat conductive member that is solid and has an insulating property... the heat conductive member is in direct contact with the exposed surface and an inner surface of the shield shell... heat from the blocking member to be directly transferred and released through the shield shell
Data Source
AI summary
A connector includes a casing, a shield shell that accommodates the casing, a wire arranged in the casing, a connector terminal connected to the wire, a blocking member that blocks current by overcurrent flowing in the wire, stud bolts and nuts for connecting the blocking member and the wire, and heat conductive members. The casing includes casing concave parts, which are recessed toward a casing space part and have filling space parts to be filled with the heat conductive members. The stud bolts are fixed to the casing and include exposed surfaces that are partially exposed to the filling space parts. The heat conductive members are in direct contact with the exposed surfaces and a shell inner surface in a filled state.