Push Switch Corner Groove for Mounting Board Force Transmission
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Solution Overview
Problem
Conventional push switches with a step formation on the substrate experience difficulty in transmitting pressing force effectively due to a large separation distance from the side surface of the mounting board, leading to inefficient operation.
Innovation Solution
The push switch design incorporates a substrate with a first and second fixed contact point, a third surface extending perpendicularly, and a fourth surface parallel to the first, featuring a corner with a groove recessed on at least one of the third or fourth surfaces, allowing for a reduced separation distance and improved force transmission when mounted on a mounting board.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the corner is formed with an R shape by cutting the step using a rotating tool, then the manufacturing process is simple, but the separation distance between the fourth surface and the side surface of the mounting board becomes large, making it difficult to transmit pressing force effectively
Solution Approach 1:
The invention applies local quality by creating a groove at the corner portion of the substrate. This groove concentrates the pressing force at a specific location (the corner) rather than distributing it across the entire fourth surface. The groove has a bottom surface that contacts the side surface of the mounting board, ensuring effective force transmission while maintaining the simple R-shaped corner geometry formed by rotating tool cutting.
2Volume of moving object
If multiple plate-like components are stacked to form the push switch, then the mounting space in the height direction is reduced, but the manufacturing precision and dimensional accuracy decrease due to lamination
Solution Approach 1:
The invention merges the substrate and the step structure into a single integrated component formed by cutting the substrate. This eliminates the need for separate plate-like components and lamination processes. The groove is formed directly on the substrate, ensuring high manufacturing precision and dimensional accuracy while achieving the compact height required for reduced mounting space.
3Device complexity
If the fourth surface is made parallel to the first surface to simplify the structure, then the device complexity is reduced, but the separation distance from the side surface of the mounting board increases, reducing operational efficiency
Solution Approach 1:
The invention maintains the simple parallel structure of the fourth surface relative to the first surface for most of the substrate area, but introduces a localized groove at the corner portion. This groove creates a specific contact point with the side surface of the mounting board, enabling effective pressing force transmission. The solution preserves structural simplicity while enhancing operational efficiency through localized modification.
Data Source
AI summary
A push switch which can have a small separation distance from a side surface of a mounting board, when it is mounted on the mounting board through a step, is disclosed. The push switch includes a substrate having a first surface on which a first fixed contact point and a second fixed contact point surrounding the first fixed contact point are formed, a second surface located opposite to the first surface, a third surface extending from the second surface to a corner in a direction perpendicular to the first surface, and a fourth surface extending from the corner parallel to the first surface, and a conductive movable contact point having a peripheral edge is in contact with the second fixed contact point, and a center contacted by the first fixed contact point when the movable contact point is pressed, and the corner includes a groove recessed with respect to at least one of the third surface and the fourth surface.