Motor Partition With Deformable Vibration Damping Feature
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Solution Overview
Problem
Existing motor designs fail to effectively dampen vibration transmitted between the case and the partition, leading to inefficient vibration management.
Innovation Solution
The motor incorporates an easily deformable part on the partition with a space formed on its outer peripheral surface, which disperses and dissipates vibration through geometrical moment of inertia, reducing stress and increasing displacement, thereby effectively damping vibrations regardless of their origin.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid partition structure is used to maintain structural strength, then the partition can withstand mechanical loads, but vibration is effectively transmitted between the case and partition, causing mechanical noise
Solution Approach 1:
The partition is segmented into a rigid part and a separate easily deformable part, allowing the rigid part to maintain structural strength while the easily deformable part absorbs vibration through deformation, preventing effective vibration transmission between case and partition
Solution Approach 2:
The easily deformable part acts as an intermediary element between the rigid partition and the case, absorbing vibration energy through its deformability and reducing the transmission of harmful vibrations and mechanical noise
2Object-generated harmful factors
If the partition is made completely deformable to absorb vibration, then vibration damping improves, but the insertion force required to fit the partition into the case becomes excessively high
Solution Approach 1:
The partition is divided into a rigid part and a separately provided easily deformable part, allowing the rigid part to provide structural support for easy insertion while the easily deformable part provides vibration damping functionality
Solution Approach 2:
Only specific portions of the partition structure (the easily deformable part) are made deformable, while the main partition body remains rigid, achieving localized vibration absorption without compromising overall structural integrity or increasing insertion force
3Ease of manufacture
If a solid partition structure is used without spaces, then manufacturing is simpler, but the partition cannot effectively disperse and dissipate vibration energy
Solution Approach 1:
The easily deformable part is designed with a porous structure containing multiple spaces, which enables effective vibration energy dispersion and dissipation through the voids while maintaining ease of manufacturing through injection molding or similar processes
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
This design significantly reduces mechanical noise and improves vibration damping, lowering the resonance sharpness and insertion force requirements, while maintaining the motor's functionality and reliability.
Implementation Method 1
vibration transmitted from one side of the case and the partition toward the other side is transmitted to the easily deformable part
Implementation Method 2
the easily deformable part is easily deformed toward the space or the like by the transmitted vibration
Implementation Method 3
The vibration transmitted to the easily deformable part is effectively dispersed and dissipated by the easily deformable part, and is damped
Implementation Method 4
due to the effect of the geometrical moment of inertia in the cross section in the axial direction or the cross section in the radial direction of the partition, the appearance hardness of the easily deformable part is reduced by the cross section amount of the space
Implementation Method 5
a force acting between the case and the plurality of support pieces is concentrated on the outer peripheral surface of the plurality of support pieces
Data Source
AI summary
A motor includes a case; and a partition that is fitted into the case and has an easily deformable part formed on an outer peripheral surface for dispersing and dissipating vibration transmitted between the case and the partition. A space is formed in the easily deformable part.