Actuator with Integrated Linear Rail and Magnetic Modules
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Solution Overview
Problem
Conventional actuators with U-shaped linear motors require additional components like guiding mechanisms and weight members, occupying large space and limiting adjustability, and tubular linear motors suffer from magnetic field interference.
Innovation Solution
An actuator design featuring a fixed assembly with a coil module, base, and linear rail, and a movable assembly with U-shaped back board, magnetic modules, and sliding block, allowing for adjustable positioning and reduced space usage, along with a position detector and elastic member for enhanced functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If U-shaped linear motors are used to enhance driving force, then the magnetic field interference is reduced, but additional components (guiding mechanism, position sensing mechanism, weight member) increase device complexity and occupy more space
Solution Approach 1:
The patent combines the guiding mechanism and position sensing mechanism into an integrated structure. The linear rail serves both as a mechanical guide for the sliding block and as a reference for the position sensing mechanism, eliminating the need for separate guiding components and reducing overall device complexity while maintaining enhanced driving force
Solution Approach 2:
The linear rail performs multiple functions simultaneously: it provides mechanical guidance for the sliding block, serves as a mounting structure for the position sensing mechanism, and acts as a reference element for position detection. This multi-functionality reduces the total number of components needed while maintaining the enhanced driving force capability
2Force
If additional components are added to U-shaped linear motors, then the driving force is enhanced, but the space occupied increases and adjustability is limited
Solution Approach 1:
The position sensing mechanism is nested within the structure of the linear rail assembly. The sensing components are positioned within or along the linear rail structure, allowing the guiding and sensing functions to occupy overlapping or integrated spatial volumes, thereby reducing the total space required while maintaining enhanced driving force
3Device complexity
If tubular linear motors are used, then the structure is simplified, but magnetic field interference occurs when multiple motors are used
Solution Approach 1:
The patent merges the guiding mechanism and position sensing mechanism into the linear rail structure, creating an integrated assembly that reduces the number of separate motor components needed. This integration maintains structural simplicity while the U-shaped configuration with controlled magnetic fields reduces interference compared to multiple tubular motors
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
Enables efficient use of space, allows for easy adjustment of the number of actuators, and provides a robust driving force while minimizing interference, enhancing usability and performance.
Implementation Method 1
The actuator includes a coil module and magnetic modules, where the coil module is disposed between the first magnetic module and the second magnetic module
Implementation Method 2
The sliding block is positioned on the U-shaped back board in the inner space, and slidably connected to the linear rail
Data Source
AI summary
An actuator is provided, including a fixed assembly and a movable assembly. The fixed assembly includes a coil module, a base, a first screwing member, and a linear rail. The first screwing member passes through the base and the linear rail, and the linear rail is positioned on the base. The movable assembly includes a U-shaped back board having an inner space, a first magnetic module, a second magnetic module aligned with the first magnetic module, and a sliding block. The first and second magnetic modules are disposed on the U-shaped back board and accommodated in the inner space. The coil module is disposed between the first magnetic module and the second magnetic module. The sliding block is positioned on the U-shaped back board in the inner space, and slidably connected to the linear rail.