Magnetic Rotational Damping Control Device for Switch Assembly
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Solution Overview
Problem
The integration of control devices providing rotational damping into electrical switches often results in assembly issues due to positional deviation between the circuit board and the mechanism, leading to increased production time and costs, and reduced product quality.
Innovation Solution
A control device utilizing magnetic force-based rotational damping, comprising a base with a supporting member, an adjusting member, and two magnetic members, which generates a magnetic force to provide adjustable resistance and prevent positional misalignment during assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the control device is integrated into the switch, then rotational damping control is achieved, but positional deviation and misalignment occur during assembly
Solution Approach 1:
The control device is separated from the switch assembly into an independent module. The supporting member with magnetic members can be mounted independently on the circuit board, while the adjusting member with its magnetic member is assembled separately and then integrated. This segmentation eliminates the tolerance stack-up problem that occurs when the control device is pre-integrated into the switch, as each component can be positioned and adjusted independently during assembly.
2Reliability
If the control device is integrated into the switch, then rotational damping is provided, but assembly time and production cost increase
Solution Approach 1:
The supporting member with the first magnetic member is prepared and mounted on the circuit board in advance, before the switch assembly is completed. This preliminary action allows the control device to be positioned and secured independently, eliminating the need for complex post-assembly adjustments and reducing overall assembly time. The adjusting member is then simply attached to the rotating shaft, completing the integration quickly.
3Reliability
If the control device is integrated into the switch, then rotational damping is achieved, but production cost increases
Solution Approach 1:
By segmenting the control device into separate components (supporting member with first magnetic member, and adjusting member with second magnetic member), each component can be manufactured independently using standard processes. This avoids the need for complex integrated manufacturing tools and fixtures that would be required for a pre-assembled control device, thereby reducing tooling costs and simplifying the supply chain.
4Reliability
If the control device is integrated into the switch, then rotational damping is provided, but assembly quality decreases
Solution Approach 1:
The magnetic force between the first magnetic member on the supporting member and the second magnetic member on the adjusting member acts as an intermediary mechanism to provide rotational damping. This magnetic interaction allows for precise control of the rotating shaft's motion without requiring tight mechanical tolerances or complex alignment features, thereby improving assembly quality and reducing sensitivity to positional variations.
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 solution enables faster, cheaper, and higher-quality assembly of electrical switches by preventing positional deviations and allowing for fine-tunable and variable control over the switch, enhancing manufacturing efficiency and product quality.
Implementation Method 1
The two magnetic members generate a magnetic force therebetween and thereby change the rotational damping between the supporting member and the adjusting member
Data Source
AI summary
A control device capable of providing rotational damping through a magnetic force is provided directly at the base of an electronic product and includes a supporting member, an adjusting member, and two magnetic members. The supporting member is provided at the base. The adjusting member is rotatably provided on the supporting member. The adjusting member has a bottom portion corresponding to a switch pre-installed in the base. The adjusting member further has a head portion outside the base. The two magnetic members are provided on the supporting member and the adjusting member respectively. The two magnetic members generate a magnetic force therebetween and thereby change the rotational damping between the supporting member and the adjusting member.