Linear Drive Motor Honeycomb Core Assembly
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Solution Overview
Problem
Existing linear drive motor assemblies lack sufficient rigidity and weight efficiency, particularly in the Z-direction, which limits their application in self-supporting and inverted configurations, and requires additional structural support to minimize deflections and enhance motion precision.
Innovation Solution
Incorporating a commercially available honeycomb core between the platen and support plate, using off-the-shelf honeycomb material, which provides additional support in the Z-direction and reduces weight, allowing for more flexible manufacturing and increased manufacturing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional solid core materials are used, then structural strength is improved, but weight increases and rigidity in Z-direction is insufficient
Solution Approach 1:
The patent applies honeycomb core materials with controlled porosity to achieve high strength-to-weight ratio. The cellular structure provides structural support while maintaining low weight, directly addressing the contradiction between strength and weight in the assembly design.
Solution Approach 2:
The patent uses composite honeycomb structures combining different materials (e.g., aluminum, plastic, or wood veneer facings with honeycomb core) to optimize both strength and weight properties, resolving the trade-off between these two parameters.
2Strength
If traditional solid core materials are used, then structural support is improved, but rigidity in Z-direction remains insufficient
Solution Approach 1:
The patent introduces the honeycomb cellular structure that leverages three-dimensional geometry to achieve superior rigidity in the Z-direction. The hexagonal cells distribute loads efficiently across multiple dimensions, providing enhanced stiffness without increasing weight.
Solution Approach 2:
The honeycomb structure utilizes curved cell walls and geometric shapes to distribute stresses more effectively, enhancing rigidity in the Z-direction compared to flat solid structures of equivalent weight.
3Stability of the object's composition
If additional structural support is added, then deflections are reduced, but device complexity increases
Solution Approach 1:
The patent merges the structural support function and the core material into a single integrated honeycomb component. This eliminates the need for separate support brackets or reinforcement elements, reducing overall device complexity while maintaining deflection performance.
Solution Approach 2:
The honeycomb core serves multiple functions simultaneously: it provides structural support, reduces weight, enhances rigidity in the Z-direction, and acts as a mounting surface. This multi-functionality eliminates the need for additional components, simplifying the overall device design.
Data Source
AI summary
A method of constructing a linear drive motor assembly is disclosed. In accordance with the method, a support plate and a platen with a plurality of teeth are provided. A honeycomb core comprising a commercially available, off-the-shelf honeycomb material is provided. The honeycomb core has a plurality of cells arranged in a planar array where the plurality of cells is defined by walls extending in planes substantially perpendicular to the planar array. The support plate is directly secured to one side of the planar array. The platen is secured directly to the other side of the planar array. A forcer having a motor stack is magnetically coupleable to the platen to form a linear drive motor.