Parallelepipedic Motor Support Decoupling Vibrations
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Solution Overview
Problem
Existing motor support devices for ventilation, heating, and air conditioning systems in vehicles fail to effectively decouple vibrations from the motor, leading to noise pollution and discomfort for passengers, as they are not standardized and do not adequately address the various types of vibrations caused by the motor and pulser wheel, regardless of the motor's position.
Innovation Solution
A support device with a parallelepipedic block decoupling means that includes recesses on its sides to absorb axial and tangential vibrations while maintaining rigidity against radial stress, allowing for flexible positioning of the motor in horizontal or vertical orientations, and an H-shaped structure with radially distributed decoupling means to uniformly distribute forces and optimize vibration damping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional decoupling means are used, then decoupling for a specific vibration type is achieved, but decoupling for other vibration types is not effective
Solution Approach 1:
The decoupling means is designed with a parallelepipedic block structure featuring recesses on multiple sides (first side, second side, third side, fourth side) that can accommodate different types of vibrations including radial, axial, and tangential movements. This multi-directional recess configuration enables a single decoupling component to handle multiple vibration types simultaneously, resolving the contradiction between reliability for specific vibration types and adaptability to different vibration types.
2Reliability
If decoupling means are positioned for specific motor orientations, then effective decoupling is achieved for that orientation, but the device cannot accommodate different motor positions
Solution Approach 1:
The base is designed with multiple radial planes (first radial plane, second radial plane) with decoupling means distributed on each plane. This configuration allows the motor to be installed in various orientations (horizontal or vertical positions) while maintaining effective vibration decoupling in all directions, thus achieving both reliable decoupling performance and motor position flexibility.
Solution Approach 2:
The invention transitions from single-plane decoupling to multi-plane decoupling by distributing decoupling means across multiple radial planes. This dimensional expansion from one plane to multiple planes enables the system to handle vibrations from different motor orientations simultaneously, resolving the contradiction between decoupling performance and position adaptability.
3Strength
If rigid decoupling means are used, then structural stability is maintained, but vibration damping effectiveness is reduced
Solution Approach 1:
The decoupling means features recesses on specific sides of the parallelepipedic block, creating localized flexible zones while maintaining rigid structural framework. The recesses on the first side, second side, third side, and fourth side allow controlled deformation for vibration absorption, while the overall block structure provides necessary structural stability, thus resolving the contradiction between rigidity and damping effectiveness.
4Reliability
If non-standardized decoupling means are used, then specific vibration requirements are met, but production costs increase
Solution Approach 1:
The standardized parallelepipedic block design with consistently positioned recesses on multiple sides serves as a universal decoupling component that can be manufactured using standard processes. This standardized multi-functional design eliminates the need for custom-designed decoupling means for different applications, reducing production costs while maintaining effective vibration control across various motor configurations.
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 solution significantly reduces noise pollution by effectively decoupling all types of vibrations, enhancing passenger comfort and standardizing the support device, while also compensating for material damping losses at low temperatures.
Implementation Method 1
The specific structure of the decoupling means ensures the decoupling between the motor and the motor support whatever the type of vibrations caused by the implementation of the motor and the pulser wheel. Thus, the vibrations of the axial type and of the tangential type are absorbed by the decoupling means.
Implementation Method 2
The recess created in a direction parallel to the axis A causes the pad to be flexible with respect to an axial stress and to a tangential stress while maintaining rigidity of the pad with respect to a radial stress.
Implementation Method 3
The particular distribution of the decoupling means implies a uniformity of the forces exerted on the decoupling means. In doing so, the damping or attenuation of the vibrations created by the engine during its implementation is achieved in an optimal manner.
Data Source
Figure 1
Figure 1a~2a
Figure 2b~3
AI summary
The device (1) has a base (2) i.e. hollow cylinder, and a ring (3) i.e. hollow cylinder, respectively with two faces (10, 5) extending along an axis (A) of a motor, where the ring houses the motor. A decoupling unit i.e. parallelepiped stud, is interposed between the face of the ring and the face of the base to connect the ring and the base. The unit, the base and the ring are formed as a single piece using plastic. The unit includes a side (11) in direct contact with the ring, a side (12) in direct contact with the base, and a free side (13) extending in an axial plane relative to the axis. An independent claim is also included for a method for manufacturing a motor supporting device.