Sun Visor Connector Positioning Mechanism
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Solution Overview
Problem
Conventional sun visor connectors face reliability issues due to misalignment of connector terminals, leading to failures in contact between mating and arm connection portions, which affects the connection's reliability.
Innovation Solution
A sun visor connector design that includes a pressing portion with a flat plate abutting the bracket, ensuring the connector terminal is fixed at a regular position within the housing, and a flat plate portion that can be inclined to guide the terminal correctly during installation, thereby preventing misalignment and maintaining stable contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the connector terminal is accommodated in the housing without a positioning mechanism, then the device complexity is reduced, but the manufacturing precision and connection reliability deteriorate due to misalignment
Solution Approach 1:
A positioning protrusion is provided on the housing and a corresponding positioning groove on the connector terminal. This intermediary mechanical feature acts as a mediator to guide and constrain the connector terminal to its correct position during assembly, ensuring precise alignment without requiring complex external positioning mechanisms or high-precision manufacturing tolerances.
Solution Approach 2:
The positioning protrusion and groove are pre-formed during the manufacturing process of the housing and connector terminal respectively. This preliminary action of creating the positioning features before assembly ensures that when the connector terminal is installed, it automatically aligns correctly without requiring additional adjustment or complex positioning mechanisms during assembly.
2Ease of operation
If the connector terminal is allowed to move freely in the housing, then the ease of operation is improved, but the reliability of connection deteriorates due to contact failure
Solution Approach 1:
The positioning protrusion and groove serve as a mechanical intermediary that guides the connector terminal into its correct position during installation. This allows for easy, tool-free assembly while simultaneously ensuring precise alignment and reliable contact between the connector terminal and the bracket, eliminating the trade-off between ease of operation and connection reliability.
Solution Approach 2:
The connector terminal is designed to be self-positioning through the positioning protrusion and groove mechanism. During installation, the connector terminal automatically finds and locks into its correct position without requiring external alignment tools or complex adjustment mechanisms, ensuring both ease of installation and reliable connection.
Data Source
AI summary
A connector for a sun visor includes a bracket attached to an attachment member, an arm portion which rotatably supports a sun-visor body arranged on one side of the attachment member and of which an end is rotatably inserted into the bracket, a housing fixed to the other side of the attachment member of the bracket and arranged near the end of the arm portion, a connector terminal accommodated in the housing and including a mating connection portion arranged on the other side of the attachment member and an arm-connection portion connected to the end of the arm portion, a fixing portion provided in the connector terminal, and fixing the connector terminal to the housing, and a pressing portion provided at a portion of the connector terminal which faces the bracket, abutting on the bracket, and pressing the connector terminal in an insertion direction of the fixing portion.