Fitting Connector Insulating Member Scraping Prevention
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Solution Overview
Problem
Conventional fitting connectors experience conduction failure due to shavings from the female-side insulating member, made of synthetic resin, being scraped by the metal male terminal, leading to contact between the female and male terminals.
Innovation Solution
A fitting connector design featuring a female terminal with a cylindrical shape and a female-side insulating member that includes a finger touch preventing body and an inner cylindrical body with insulating properties, which are integrated with the outer cylindrical body to prevent contact between the insulating member and the male terminal, ensuring continuous conduction performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the female-side insulating member is made of synthetic resin material, then it provides effective insulation and finger protection, but it gets scraped by the metal male terminal causing shavings that lead to conduction failure
Solution Approach 1:
The patent introduces a guide member as an intermediary component between the male terminal and the female-side insulating member. This guide member, positioned in the female-side connecting body, guides the male terminal during insertion to prevent direct contact and scraping between the metal male terminal and the synthetic resin insulating member, thereby eliminating shavings that cause conduction failure
Solution Approach 2:
The patent positions the guide member in advance within the female-side connecting body to preemptively prevent the harmful interaction. The guide member is installed beforehand to cushion and redirect the insertion motion of the male terminal, preventing the insulating member from being scraped before the connection is made
2Reliability
If the male terminal is inserted deeply into the female terminal for good electrical contact, then conduction performance improves, but the male terminal scrapes the female-side insulating member causing shavings
Solution Approach 1:
The guide member serves as a mediator that allows deep insertion for good electrical contact while preventing material loss. It redirects the insertion path so that the male terminal achieves proper electrical connection without directly contacting and scraping the insulating member, thus preventing shavings and material loss
3Ease of operation
If the female-side insulating member is positioned to prevent finger contact with the terminal, then safety improves, but it becomes vulnerable to scraping during connector insertion
Solution Approach 1:
The guide member acts as an intermediary protective element that preserves the insulating member's integrity. It allows the insulating member to maintain its finger protection function while the guide member absorbs the mechanical stress and scraping forces during insertion, preventing damage to the insulating member
Data Source
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AI summary
A fitting connector (1) includes a female connector (10) provided with a female terminal (20) and a female-side insulating member (30), and a male connector (110) provided with a male terminal (120) and a male-side insulating member (130). A male-side connecting body (121) has a male-side space part (121a) into which an inner cylindrical body (132) in a cylindrical shape having insulating property is inserted on the same cylindrical axis, and a female-side insulating member (30) has a finger touch preventing body (31) having a columnar or cylindrical shape arranged in the female-side space part (21a) on the same axis line as the cylindrical axis of the female-side space part (21a), and inserted into a first space part (131b) formed inside the outer cylindrical body (131) and a second space part (132a) formed inside the inner cylindrical body (132) when the female-side connecting body (21) and the male-side connecting body (121) are in an inserted and fitted state.