Mobile Compressor Damping to Reduce Startup and Shutdown Noise
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Mobile refrigeration systems in vehicles experience noise and damage due to internal compressor components hitting the housing during startup, shutdown, or movement, which is undesirable for user comfort and system longevity.
Innovation Solution
A compressor design with damping structures, including springs and dampers, limits the movement of components within the housing to prevent contact with the housing, reducing noise and damage during vehicle operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the compressor is designed for mobile use without damping structures, then the device complexity is reduced, but noise and damage occur due to component contact with the housing during startup, shutdown, or vehicle movement
Solution Approach 1:
The patent applies beforehand cushioning by installing dampers and springs within the compressor housing before operation begins. These damping structures are pre-positioned to cushion and absorb shocks and vibrations that occur during startup, shutdown, or vehicle movement, preventing direct contact between moving components and the housing, thereby reducing noise and damage while maintaining a relatively simple overall design.
2Reliability
If damping structures are added to the compressor, then noise and damage are reduced, but the device complexity increases
Solution Approach 1:
The patent applies local quality by strategically placing damping structures only at specific locations where component contact is most likely to occur, rather than uniformly throughout the entire housing. This targeted approach reduces noise and damage at critical points while minimizing the overall number of damping components needed, thereby improving reliability without excessively increasing device complexity.
3Ease of operation
If the compressor components are allowed to move freely within the housing, then the ease of operation is improved, but contact with the housing causes noise and accelerated performance decline
Solution Approach 1:
The patent introduces an intermediary element (damping structures) between the moving compression components and the stationary housing. This intermediary allows the components to move freely during normal operation for ease of operation, while simultaneously absorbing shocks and vibrations that would otherwise cause contact damage, thereby extending the service life of the compressor without restricting necessary movement.
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 damping structures effectively inhibit contact between compressor components and the housing, reducing noise and extending the lifespan of the refrigeration system by limiting mechanical damage.
Implementation Method 1
a spring damper disposed against the housing and providing a force on the motor and compressor body
Implementation Method 2
The damping structures effectively inhibit contact between compressor components and the housing, reducing noise and extending the lifespan of the refrigeration system by limiting mechanical damage
Data Source
AI summary
A damped compressor used in mobile appliances. The appliances may comprise a compressor which is disposed within a housing and is in fluid communication with a refrigerant system. Within the housing there is an improved damping or stabilizer system which limits movement of electric or mechanical portions, or both, of the compressor within the housing. At startup and shutdown, when oscillations of the components within the housing are generally maximized, the components are limited from contacting the housing internal structure so as to inhibit damage to the compressor and reduce the noise associated with such contact. The components are also damped from movement associated with the mobile application of the compressor.