Connector Resin Gate Inversion for Tab Positioning
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Solution Overview
Problem
The existing connector manufacturing process using molten resin injection causes positional instability and inclination of connecting member tab sections due to charging pressure, leading to inaccurate positioning and reduced connection reliability with counterpart connectors.
Innovation Solution
The connector design incorporates a resin charging gate on the opposite side of the connecting member's protruding direction, allowing molten resin to be injected in a way that the charging pressure stabilizes the tab sections, maintaining their accuracy and extending length, ensuring precise positioning and reliable connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If molten resin is injected into the mold during connector manufacturing, then the housing is formed and integrated with the connecting member, but the charging pressure of the resin changes the position of the connecting member, reducing positional accuracy of the terminal sections
Solution Approach 1:
The patent inverts the conventional resin injection approach by injecting resin from the opposite side of the connecting member relative to the tab sections. Instead of injecting from the tab side which pushes the connecting member away, the resin is injected from the rear side, allowing the pressure to push the connecting member forward in the protruding direction, thereby maintaining or improving positional accuracy of the terminal sections.
2Stability of the object's composition
If the connecting member is held inside the mold during resin injection, then the connecting member is integrated with the housing, but the position of the connecting member becomes unstable due to resin pressure, causing inclination and insufficient extending length of tab sections
Solution Approach 1:
The patent applies inversion by changing the resin injection direction to the opposite side of the connecting member. This causes the resin pressure to act in the protruding direction of the tab sections, stabilizing the connecting member position and preventing inclination, thereby ensuring sufficient extending length and maintaining connection reliability with the counterpart connector.
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 approach ensures accurate positioning and stable tab sections during connector assembly, enhancing connection reliability with counterpart connectors by directing the resin charging pressure in the protruding direction of the tab sections, preventing inclination and ensuring sufficient extending length.
Implementation Method 1
manufactured by injecting molten resin into a mold in a state in which the connecting member is set inside the mold so that the connecting member is integrally molded with the resin
Implementation Method 2
the charging pressure of the molten resin is applied to the connecting member held inside the mold. Hence, the position of the connecting member held inside the mold is changed by the charging pressure of the resin
Data Source
AI summary
A connector includes: a connecting member including a plurality of tab sections and made of a conductive metal material; and a housing which is made of resin and in which the connecting member is insert-molded. Terminals of a counterpart connector are connectable to the tab sections by a connection of the counterpart connector. A side of the connecting member of the housing opposite to a protruding direction of the tab sections is used as a resin charging gate section from which the resin is charged.