Threaded Actuating Element for Microswitch Positioning
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Solution Overview
Problem
Existing actuating elements for microswitches face challenges in achieving precise and adjustable switching positions, particularly in miniaturized systems, where rigid elements can damage the microswitch and elastic elements provide inadequate tolerance compensation, and readjustment is often difficult or impossible.
Innovation Solution
An actuating element with a threaded body and a contact element that can be adjusted by twisting, allowing for precise setting and easy readjustment of the switching point, featuring a spring wire or monolithic design with a self-locking mechanism to secure the position, enabling flexible positioning and long service life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a rigid actuating element is used, then the switching position can be precisely set, but the microswitch can be damaged due to excessive deformation and readjustment is difficult or impossible
Solution Approach 1:
The actuating element transitions from a rigid structure to a dynamic system with two distinct zones: a rigid contact zone for precise switching and an elastic deformation zone for tolerance compensation. This allows the element to be rigid where precision is needed while being flexible where tolerance absorption is required, preventing microswitch damage.
Solution Approach 2:
Different parts of the actuating element have different mechanical properties. The contact region near the microswitch is designed to be rigid for precise positioning, while the region further from the microswitch is designed to be elastic to absorb deformations and tolerances, protecting the microswitch from damage.
2Adaptability or versatility
If an elastic actuating element is used, then tolerance compensation is possible, but excessive deformation can damage the microswitch
Solution Approach 1:
The actuating element features localized rigidity at the contact point with the microswitch, ensuring that even when the overall element deforms elastically to compensate for tolerances, the critical contact region maintains its shape and positioning accuracy, preventing excessive deformation at the microswitch interface.
Solution Approach 2:
The element dynamically balances between elastic deformation for tolerance compensation and rigid behavior at the contact point. The rigid contact zone ensures that the elastic deformation occurs in non-critical regions, allowing tolerance absorption without transmitting excessive deformation to the microswitch.
3Measurement precision
If the actuating element is made adjustable, then the switching point can be precisely set, but the device complexity increases
Solution Approach 1:
The actuating element incorporates a threaded (screw) structure, which provides precise positional adjustment through rotational movement. This simple mechanical thread mechanism allows for fine-tuning of the switching point without requiring complex electronic or mechanical adjustment systems, maintaining device simplicity while achieving high precision.
4Device complexity
If the actuating element is made non-adjustable, then the device complexity is reduced, but the switching position cannot be precisely set or readjusted
Solution Approach 1:
The threaded body design provides an integrated adjustment mechanism that maintains relative structural simplicity. The screw thread converts rotational motion into precise linear displacement, allowing the contact element to be accurately positioned and locked without requiring complex adjustment mechanisms, thus achieving high precision while keeping the device simple.
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 solution allows for precise and adjustable positioning of microswitches, enabling long-term operation without issues, supporting both linear and pivotal movement detection, and simplifying production and handling with a robust and durable design.
Implementation Method 1
The threaded body (11) is designed to adjust the contact element (12)
Implementation Method 2
Some actuating elements are designed to be elastic in order to allow tolerance compensation in the switching position
Data Source
Figure 1
Figure 2a~2b
Figure 2c
AI summary
The invention relates to an actuating element (10) for moving a movable component, in particular the switching flag (21 a, 22a) of a switch (21, 22), with a threaded body (11) for attaching the actuating element (10) to a movable component (1, 2) and a contact element (12) for moving the movable component (21 a, 22a), wherein the threaded body (11) is designed for adjusting the contact element (12).