Ventilator Motor Damping Mount With Backlash-Free Decoupling
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Solution Overview
Problem
Existing vibration damping solutions for electric motors, particularly in radial blowers, often result in undesirable mechanical stress and noise due to torque-ripple and imbalance, and lack a backlash-free connection between the motor and base plate, leading to suboptimal vibration decoupling.
Innovation Solution
A vibration damping device featuring decoupling elements with recesses and clamping sections that establish a force-fit or form-fit connection with the base plate, preventing backlash and ensuring secure mounting, utilizing resilient materials like silicone for effective vibration decoupling while maintaining the motor's position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a vibration dampener is provided between the motor and the base plate, then vibration decoupling is improved, but the connection may develop backlash leading to suboptimal damping
Solution Approach 1:
The mounting structure incorporates a resilient element that allows dynamic adjustment and self-centering of the decoupling element, enabling the connection to maintain optimal damping properties while accommodating vibrations without developing backlash
Solution Approach 2:
A resilient element acts as an intermediary between the decoupling element and the base plate, providing both vibration decoupling and backlash-free connection through its elastic properties, simultaneously addressing both vibration reduction and connection stability
2Device complexity
If a one piece vibration dampener design is used, then device complexity is reduced, but assembly ease and backlash-free connection are compromised
Solution Approach 1:
The mounting structure is divided into distinct components: a base plate with mounting structures, decoupling elements, and resilient elements. This segmentation enables easier assembly while maintaining connection stability and vibration decoupling performance
3Reliability
If fixing means with a head is used to create force-fit connection, then backlash-free mounting is achieved, but manufacturing complexity increases
Solution Approach 1:
The mounting structure utilizes parameter changes in the resilient element's physical state during assembly, where the element deforms elastically under the head of the fixing means to create a force-fit connection, achieving backlash-free mounting through controlled deformation rather than complex manufacturing
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 provides a backlash-free mounting system that effectively decouples vibrations from the base plate, reducing mechanical stress and noise, and can be applied to various components beyond radial blowers, ensuring reliable and efficient vibration damping.
Implementation Method 1
a vibration damping device configured to decouple vibration of an electric motor for a ventilator
Implementation Method 2
utilizing resilient materials like silicone for effective vibration decoupling
Implementation Method 3
each of the fixing means is configured to establish a force-fit and/or form-fit connection with the corresponding mounting structure
Implementation Method 4
the at least one clamping section of the decoupling element is pressed between a portion of the head and the mounting structure for a backlash free mounting
Data Source
AI summary
In one embodiment, the present disclosure provides a vibration damping device configured to decouple vibration of an electric motor for a ventilator, comprising: a base plate (140); a bearing unit (150) for supporting the electric motor, a plurality of decoupling elements (120), which are releasably coupled via retaining elements (151) to the bearing unit (150) and positionable between the bearing unit (150) and the base plate (140): wherein: the base plate (140) comprises mounting structures (141) for the decoupling elements (120) and fixing means (110) with a head (111): and each decoupling element (120) comprises adjacent to a recess at least one clamping section (121) for the corresponding fixing means (110) on the base plate (140); further wherein each of the fixing means (110) is configured to establish a force-fit and/or form-fit connection with the corresponding mounting structure (141) and the at least one clamping section (121) of the decoupling element (120) is pressed between a portion of the head (112) and the mounting structure (141) for a backlash free mounting of the decoupling element (120) to the base plate (140) in its mounted state. Due to the backlash-free mounting, the damping element cannot be loosened in the mounted state.