Seesaw Switch Wave-Shaped Busbars Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing seesaw switches for vehicle interior illumination lamps have a complex assembly process due to the need for accurate positioning of the slider with the engagement portion, leading to increased production costs and assembly steps, and do not provide a good switch operation feeling.
Innovation Solution
A seesaw switch design with a reduced number of components, featuring wave-shaped busbars with end and middle root portions, where the sloping angles of the end root portions are smaller than the central root portion, eliminating the need for expensive balls and springs, and providing a proper switch operation feeling through the spring property and wave-shaped configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the slider is accurately positioned with the engagement portion, then the switch operation is reliable, but the assembling work becomes complex
Solution Approach 1:
The invention divides the switch mechanism into two independent parts: the functional portion containing the slider and the design portion containing the switch knob with engagement portion. These parts can be assembled independently without requiring complex positioning, as the slider is guided into place by the engagement portion's recess structure during assembly.
Solution Approach 2:
The engagement portion acts as an intermediary element between the slider and switch knob. It provides a recess portion that guides and positions the slider during assembly, ensuring accurate positioning without requiring complex assembly operations. The engagement portion mediates the connection between the functional and design portions.
2Ease of manufacture
If the oscillation axis of the switch lever and switch knob coincide, then the assembling property is improved, but the number of components increases
Solution Approach 1:
The invention merges the switch lever and switch knob into a single integrated component. The switch lever is formed as an integral part of the switch knob, eliminating the need for separate components and reducing assembly steps. The oscillation axis coincidence is achieved through this integration rather than through separate aligned components.
3Ease of manufacture
If the number of components is decreased, then the production costs decrease, but the switch operation feeling may be compromised
Solution Approach 1:
The invention applies different properties to different parts of the integrated switch lever-knob component. The switch lever portion provides the mechanical switching action with appropriate stiffness, while the switch knob portion provides the user interface with suitable flexibility. This local differentiation maintains good operation feeling despite component reduction.
Solution Approach 2:
The invention optimizes the physical parameters of the integrated switch component, such as the dimensions, material properties, and geometric shape of the switch lever and knob portions. By carefully controlling these parameters, the switch provides satisfactory operation feeling with fewer components, reducing production costs while maintaining performance.
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 design simplifies the assembly process, reduces production costs, and ensures a good switch operation feeling by fluctuating the operating load and preventing the contact from being forced out, thus enhancing the switch's operational conditions.
Implementation Method 1
the busbars have a wave shape including end root portions, a middle root portion disposed between the end root portions... provides a proper switch operation feeling through the spring property and wave-shaped configuration
Data Source
AI summary
A seesaw switch includes a seesaw switch knob, two contacts which extend from the seesaw switch knob, and busbars which contact individually the two contacts. A surface of each of the busbars has a wave shape including end root portions, a middle root portion disposed between the end root portions. Each of the two contacts moves from one of the end root portions to the other of the end root portions by way of the middle root portion to stop in the other of the end root portions while contacting corresponding one of the busbars when one of end portions of the seesaw switch knob is depressed.