Sun Visor Connector With Preliminary Displacement Portion
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Solution Overview
Problem
Conventional sun visor connectors experience connection reliability issues due to deformation of arm connection parts when the distance between them is narrower than the width of the arm portion, leading to collisions and reduced connection stability.
Innovation Solution
Incorporating a preliminary displacement portion in the housing that abuts the arm connection parts, maintaining a biasing force to keep them separated and preventing deformation, along with excessive displacement preventing portions to avoid excessive separation and deformation preventing portions for detaching, ensuring stable connection and preventing deformation during assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of stationary object
If the distance between the pair of arm connection parts is made narrower to reduce the housing size, then the housing size is reduced, but the arm connection parts collide with the arm portion end causing deformation and reduced connection reliability
Solution Approach 1:
The preliminary displacement portion pre-displaces the arm connection parts in the separating direction before the housing is fully assembled to the bracket. This preliminary action ensures that when the arm portion end is inserted, the arm connection parts are already positioned at an appropriate distance, preventing collision and deformation while maintaining a compact housing design.
Solution Approach 2:
The preliminary displacement portion applies a separating force to the arm connection parts in advance, creating a preliminary anti-action that counteracts the potential collision with the arm portion end. This pre-applied separating force prevents the harmful collision before it occurs during assembly.
2Reliability
If the arm connection parts are kept separated to prevent collision, then connection reliability is maintained, but the contact load between arm connection parts and arm portion may be insufficient
Solution Approach 1:
The arm connection parts are designed with elastic deformability, allowing them to dynamically adjust their position and contact force. The preliminary displacement portion maintains them in a separated state with built-in elastic force, and when the housing is assembled, the arm connection parts automatically contact the arm portion end with appropriate contact load through their elastic recovery, achieving both separation for collision prevention and contact for electrical connection.
3Ease of manufacture
If excessive displacement of arm connection parts is allowed during assembly, then ease of assembly is improved, but deformation of arm connection parts occurs reducing connection reliability
Solution Approach 1:
The excessive displacement preventing portions are provided to cushion and limit the displacement of arm connection parts during assembly. These portions act as mechanical stops that prevent excessive displacement before it can cause deformation, while still allowing sufficient displacement for easy assembly. This beforehand cushioning protects the arm connection parts from deformation while maintaining assembly ease.
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 solution maintains connection reliability by preventing deformation of arm connection parts during assembly and ensuring stable contact loads, while also preventing excessive displacement and deformation during operation and detachment.
Implementation Method 1
a pair of arm connection parts provided on the pair of connector terminals in an elastically deformable manner and connected by sandwiching the end of the arm portion by a biasing force
Implementation Method 2
a preliminary displacement portion provided in the housing, abutting on the pair of arm connection parts, and causing the pair of arm connection parts to be arranged in a separated manner by keeping a biasing force against the end of the arm portion
Data Source
AI summary
A sun visor connector includes: a bracket; an arm portion having an end inserted through the bracket to be rotatably arranged; a housing fixed to the bracket and arranged in a vicinity of the end of the arm portion inserted through the bracket; a pair of connector terminals accommodated in the housing and connected to counterpart terminals; a pair of arm connection parts provided in an elastically deformable manner on the pair of connector terminals and connected by sandwiching the end of the arm portion by a biasing force; and a preliminary displacement portion provided in the housing, abutting on the pair of arm connection parts, and causing the pair of arm connection parts to be arranged in a separated manner by keeping a biasing force against the end of the arm portion.