Elastic Compressor Mounting Structure for Bearing Vibration Isolation
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Solution Overview
Problem
Existing compressor mounting structures fail to effectively suppress vibrations of the compression mechanism caused by vehicle vibrations, leading to potential collisions between components.
Innovation Solution
A mounting structure with elastic mounting feet, where the resonance frequency of the mounting feet is lower than that of the radial and thrust bearings, thereby reducing the vibration transmission to the compressor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional rigid mounting structures are used to firmly secure the compressor, then the mounting reliability is improved, but the vibration suppression capability deteriorates
Solution Approach 1:
The patent introduces an elastic member as an intermediary between the mounting surface and the compressor housing. This elastic member acts as a mediator that decouples the rigid connection, allowing the mounting structure to maintain reliability while suppressing vibration transmission to the compression mechanism.
Solution Approach 2:
The patent changes the physical parameters of the mounting structure by using an elastic member with specific resonance frequency characteristics. By controlling the resonance frequency of the elastic member to be lower than that of the bearings, the structure transforms from a rigid vibration-transmitting connection to a vibration-suppressing connection.
2Stability of the object's composition
If the resonance frequency of mounting feet is increased to improve responsiveness, then the mounting stability is improved, but the vibration isolation capability deteriorates
Solution Approach 1:
The patent utilizes mechanical vibration principles by designing the elastic member with a resonance frequency lower than the bearing resonance frequencies. This creates a frequency filter effect where the elastic member absorbs and dissipates vibration energy, preventing it from being transmitted to the compression mechanism while maintaining mounting stability.
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 proposed mounting structure effectively suppresses the vibration of the compression mechanism, reducing the risk of component collisions and enhancing the operational stability of the compressor.
Implementation Method 1
a mounting foot that is made from an elastic member and fixed to the housing and the mounting surface
Implementation Method 2
The radial bearing and the thrust bearing are gas bearings
Data Source
AI summary
A mounting structure for mounting a compressor to a mounting surface of a vehicle is disclosed. The compressor includes a rotating body that includes a rotary shaft and a compression mechanism. The compression mechanism is provided at least at one end of the rotary shaft in an axial direction. The compressor includes a radial bearing that supports the rotary shaft, a thrust bearing that supports the rotary shaft, and a housing that accommodates the rotating body, the radial bearing, and the thrust bearing. The radial bearing and the thrust bearing are gas bearings. The mounting structure includes a mounting foot that is made from an elastic member and fixed to the housing and the mounting surface. The resonance frequency of the mounting foot is lower than the resonance frequency of the radial bearing and lower than the resonance frequency of the thrust bearing.