Push Button Switch Diagonal Guiding Trench Mechanism
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Solution Overview
Problem
Traditional push button switches have a short lifespan due to high pressure requirements and limited functionality, as they rely on a single vertical movement mechanism and lack multiple circuit loops, making them unsuitable for frequent use and multi-function applications.
Innovation Solution
A push button switch design featuring a base with multiple conductive terminals, a switching assembly with a displacement-restricting guiding trench, and a push button assembly with elastic units, allowing for tilting of contact plates to switch between different conductive terminals and enabling multiple circuit loops, thereby distributing pressure and enhancing durability and functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a traditional single vertical movement mechanism is used, then the structure is simple, but the lifespan is short due to high pressure on components
Solution Approach 1:
The patent introduces a diagonal movement dimension by adding a guiding trench that extends from the top surface to the bottom surface at an angle. This diagonal path transforms the traditional vertical pressing motion into a diagonal movement, distributing the pressing force across multiple components (push bar, contact plate, switching assembly) simultaneously, thereby reducing the pressure concentration on any single component and extending the switch lifespan.
2Device complexity
If a single vertical pressing mechanism is used, then the device is simple, but the functionality is limited to one circuit loop
Solution Approach 1:
The patent enables multi-functionality by designing the switching assembly with multiple contact plates (first, second, and third contact plates) that can be selectively connected through the diagonal guiding trench mechanism. A single pressing action can switch between different circuit loops (first circuit loop, second circuit loop, third circuit loop), allowing the switch to control multiple functions or circuits simultaneously while maintaining a relatively simple overall structure.
3Ease of operation
If pressing force is transferred vertically through multiple components, then the switching mechanism works, but the withstanding force of each component becomes quite large
Solution Approach 1:
The guiding trench creates a diagonal force distribution path. When the push button is pressed vertically, the force is redirected along the diagonal trench, causing the push bar, contact plate, and switching assembly to move diagonally. This diagonal movement distributes the force across multiple components simultaneously, reducing the peak withstanding force required by each individual component compared to a direct vertical transmission path.
4Ease of manufacture
If the contact plate is designed as a single plane, then the manufacturing is simple, but it cannot withstand repeatedly vertical pressing movements
Solution Approach 1:
The guiding trench transforms the contact plate's movement from purely vertical to diagonal. The contact plate remains a simple planar structure for easy manufacturing, but the diagonal movement path created by the trench allows the contact plate to distribute pressing forces more effectively across its structure and connection points, enhancing its ability to withstand repeated pressing cycles without compromising manufacturing simplicity.
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
The design extends the lifespan of the push button switch by distributing pressure through diagonal surfaces and allows for multi-function applications by enabling multiple circuit loops, improving durability and functionality beyond traditional single-loop switches.
Implementation Method 1
a first elastic unit assembled to the pushing element
Implementation Method 2
a second elastic unit assembled in the groove and partially located in the second cavity
Data Source
AI summary
A push button switch having a base, a plurality of contact plates, a switching assembly, and a push button assembly. The base has a first cavity with a plurality of first, second, and third conductive terminals assembled therein. A length of the first conductive terminal is greater than that of the second and third conductive terminals. The contact plate is of a planar structure or has an extending structure. The switching assembly has a switching body with a displacement-restricting guiding trench and a plurality of second cavities and a plurality of switching units. The switching units are respectively arranged in the second cavities and push against the contact plates. The push button assembly is connected to the base and has a pushing element and a first elastic unit. The pushing element pushes against the displacement-restricting guiding trench and the first elastic unit is assembled to the pushing element.