Magnetic Latching Actuator for Compact Vehicle Switches
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing actuators for motor vehicles lack ergonomic design and efficient use of space, particularly in cramped installations, and do not effectively manage multiple functional modules with suitable latching forces and module arrangements.
Innovation Solution
The actuator employs a magnetic latching mechanism using a magnetizable adhesive body and permanent magnet, with an electromagnet for releasing the detent, allowing for high detent force with low energy requirements, and a compact design that converts pivoting movements into linear movements to control multiple modules independently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a magnetic latching mechanism with permanent magnet and adhesive body is used, then the detent force is high with low energy requirements, but the device complexity increases due to additional magnetic components
Solution Approach 1:
The patent replaces traditional mechanical spring-based latching mechanisms with a magnetic field-based latching system. The permanent magnet (5) and adhesive body (4) create magnetic attraction forces that provide the detent effect without requiring mechanical springs or complex linkages, thereby reducing mechanical complexity while maintaining high detent force with minimal energy input.
Solution Approach 2:
The patent utilizes changes in magnetic field parameters (strength, distribution, and interaction) to achieve variable detent forces. By positioning the adhesive body (4) at different locations relative to the permanent magnet (5), the magnetic attraction can be optimized to provide appropriate latching forces for different operating conditions, allowing parameter optimization without increasing structural complexity.
2Volume of moving object
If the actuator is designed for compact installation, then the installation space is reduced, but the ergonomics and functionality for multiple modules are compromised
Solution Approach 1:
The patent employs a pivoting handle (2) that moves in two mutually perpendicular directions (X and Y axes), effectively utilizing three-dimensional space. This multi-directional pivoting capability allows the compact actuator to control multiple modules (at least four modules) by mapping different pivot positions to different module actuations, thereby maintaining ergonomics and functionality within a small installation footprint.
Solution Approach 2:
The single handle (2) with multi-directional pivoting capability serves multiple functions by controlling at least four functionally and physically separate modules. This universal design allows one compact actuator mechanism to replace what would traditionally require multiple separate controls, achieving both space savings and maintained functionality.
3Adaptability or versatility
If the handle is pivoted in two mutually perpendicular directions, then multiple modules can be controlled, but the device complexity and installation space requirements increase
Solution Approach 1:
The patent segments the control functionality by associating different pivot positions of the handle (2) with different module control modes. The first pivoting direction (X-axis) controls one set of modules while the second pivoting direction (Y-axis) controls another set of modules. This segmentation allows independent control of multiple modules through a single unified mechanism, achieving versatility without proportionally increasing overall device complexity.
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 actuator provides enhanced ergonomics, compactness, and high functionality, suitable for tight spaces, with low noise, long service life, and reduced manufacturing costs, while ensuring accurate and error-free operation in harsh conditions.
Implementation Method 1
The latching force is generated by a magnetic force... The latching force is then brought about in the latched position by the magnetic force between the permanent magnet and the adhesive body
Implementation Method 2
An electromagnet is used to release the detent in the swivel position. The electromagnet interacts with the permanent magnet in such a way that an opposing magnetic field can be generated to release the adhesive body
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The actuator has a movable handle (2) and a rotating unit (3) that work together in such a manner that the handle is rotatable in a rotating level in a direction from a neutral position to a rotatable position. The rotatable position is formed as an indexed position in such a manner that break force acts on the handle in the rotatable position. The break force is produced by a magnetic strength. An independent claim is also included for an electrical and/or electronic switch e.g. joystick or cursor switch such as electronic gear selection switch for a motor vehicle, with an actuator.