Push Button Switch With Swing Rod And Extracted Elastic Element
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Solution Overview
Problem
Push button switches face issues with unstable contact closure/opening due to torque generation on the electrically conductive bridge, leading to arc discharge, reduced lifespan, and increased assembly complexity, along with safety risks from charged elastic elements.
Innovation Solution
A push button switch design featuring a swing rod with a driver and electrically conductive bridge, where an elastic element is loaded by the swing rod to drive the driver, allowing for reliable rotation without interfering with the swing rod's movement, and is positioned perpendicular to the swing axis to simplify assembly and prevent charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the elastic element is directly connected to the electrically conductive bridge, then the driver can be driven to deflect, but the contact stability deteriorates due to torque generation causing unstable swinging and arc discharge
Solution Approach 1:
The patent extracts the elastic element from the contact area by connecting it to the driver instead of the electrically conductive bridge. This separation removes the source of torque that caused unstable contact swinging, eliminating arc discharge and improving contact reliability while preserving the driver deflection function.
2Ease of manufacture
If the elastic element passes through the swing rod to connect the driver and electrically conductive bridge, then the connection is established, but the swing rod mechanical strength deteriorates due to the opening required for passage
Solution Approach 1:
The patent extracts the elastic element from the swing rod structure by reconnecting it to the driver. This eliminates the need for openings or passages through the swing rod, preserving its mechanical strength and integrity while achieving the necessary functional connection through the driver linkage.
3Power
If the elastic element is made of metallic material for conductivity, then the driver can be driven effectively, but safety deteriorates due to charging and risk of discharge between neighboring pieces
Solution Approach 1:
The patent extracts the elastic element from the electrical circuit by using non-metallic insulating materials. This separation removes the charging hazard entirely, eliminating the risk of discharge between neighboring pieces and electric shock accidents, while the driver driving capability is maintained through the mechanical elastic force.
4Device complexity
If the elastic element is repositioned perpendicular to the swing axis, then assembly complexity is reduced and charging is prevented, but the connection path between driver and electrically conductive bridge becomes longer
Solution Approach 1:
The patent repositions the elastic element perpendicular to the swing axis, changing its spatial orientation from a linear path through the swing rod to a side-mounted configuration. This dimensional change simplifies assembly by eliminating complex routing through the swing rod and prevents charging by using insulating materials, while the increased length is acceptable given the structural simplification achieved.
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
Enhances the reliability and stability of contact operations, prolongs the switch's lifespan, and improves safety by eliminating arc discharge risks and reducing manufacturing precision requirements.
Implementation Method 1
The elastic element is configured to be driven by the swing rod to elastically deform when the push button is pushed to cause swing of the swing rod
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
Embodiments of the present invention relate to a push button switch, comprising: a swing rod (1) swingably supported on a base (4) and having a first side (11) and a second side (12) opposite to each other; an driver (2) connected to the first side of the swing rod (1) and rotatable between a first limiting position and a second limiting position; an electrically conductive bridge (3) having a moving contact (31) and deflectably coupled to the second side of the swing rod (1); an elastic element (5, 5') coupled between the driver (2) and the base (4) and drivably connected with the swing rod (1); and a push button (6). The elastic element (5, 5') is configured to be driven by the swing rod (1) to elastically deform when the push button (6) is pushed to cause swing of the swing rod (1), whereas when the push button (6) is released, the elastic element (5, 5') that is elastically deformed drives the driver (2) to rotate from one of the first limiting position and the second limiting position to another of the first limiting position and the second limiting position. The push button switch according to the present invention can implement reliable switch operations, prolong lifetime of the push button switch and facilitate assembly and manufacture. The push button switch has highly reliable operations, easy assembly and safe use.