Actuator Magnet Channel for Heat Dissipation
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Solution Overview
Problem
Electromechanical actuators generate heat that can interfere with sensitive applications, causing measurement errors due to thermal variations.
Innovation Solution
An electromechanical actuator design featuring a magnet with a channel for the electromagnetic coil, which provides thermal insulation and includes vent apertures for convective heat dissipation, along with a connecting member to transfer mechanical force, reducing heat transfer to the apparatus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If an electromechanical actuator is used to generate linear motion, then mechanical force is produced, but heat is generated that causes thermal interference and measurement errors
Solution Approach 1:
The magnet is segmented into multiple sections with alternating polarity arrangements, creating distinct magnetic zones that allow the electromagnetic coil to generate mechanical force while the segmented structure facilitates heat dissipation pathways away from the apparatus
Solution Approach 2:
The magnet serves as an intermediary component between the electromagnetic coil and the apparatus, mechanically transmitting force while thermally isolating the apparatus from heat generated by the coil through its structural design and material properties
2Power
If the electromagnetic coil is positioned close to the apparatus for efficient force transfer, then mechanical efficiency is improved, but heat transfer to the apparatus increases
Solution Approach 1:
The magnet exhibits local quality variations with alternating polarity regions, where different zones serve different functions: some regions optimize magnetic coupling for force transfer while other regions with vent apertures and channel structures focus on heat dissipation, allowing simultaneous achievement of mechanical efficiency and thermal management
3Object-affected harmful factors
If the magnet is designed with vent apertures and channels for heat dissipation, then thermal interference is reduced, but device complexity increases
Solution Approach 1:
The vent apertures and cooling channels are merged into the magnet's structure itself, combining the thermal management function with the existing magnetic component rather than adding separate cooling systems, thereby reducing overall device complexity while maintaining effective heat dissipation
Solution Approach 2:
The magnet is designed to serve multiple functions simultaneously: generating the magnetic field for force production, providing mechanical support for the electromagnetic coil, and facilitating heat dissipation through integrated vent apertures and channels, thereby reducing the need for additional components
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 design effectively reduces heating effects, minimizing thermal interference and maintaining stable temperatures in sensitive applications like nanoindentation testing, thereby reducing measurement errors.
Implementation Method 1
an electromagnetic coil, a connecting member, and a magnet... When the electromagnetic coil is electrically energized the connecting member applies a mechanical force to the apparatus
Implementation Method 2
the magnet further comprises one or more vent apertures formed therethrough for convecting heat away from the away from the apparatus
Implementation Method 3
the electromechanical actuator further comprises one or more cooling elements adjacent the magnet
Data Source
AI summary
The application describes an electromechanical actuator for generating a mechanical force to be transferred to an apparatus. The electromechanical actuator comprises an electromagnetic coil, a connecting member, and a magnet. The connecting member is mechanically coupled between the electromagnetic coil and the apparatus and is configured to transfer the mechanical force from the electromagnetic coil to the apparatus. The magnet is disposed between the electromagnetic coil and the apparatus and includes a channel in which the electromagnetic coil is disposed, the channel having a channel opening that faces away from the apparatus, the magnet further having a central hole through which the connecting member extends.