Hermetic Compressor Suspension for Mobile Applications
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Solution Overview
Problem
Existing suspensions for hermetic reciprocating compressors in mobile applications fail to protect end stops from involuntary sudden movements and do not effectively absorb small vibrations and noises, leading to reduced lifetime and noise amplification.
Innovation Solution
A suspension design with a lower end stop comprising an anchoring structure, a damping structure, and an upper cover, where the damping structure is concentrically disposed on the anchoring structure and the upper cover is concentrically disposed on the damping structure, preventing physical contact and absorbing external vibrations and noises, and featuring a cylindrical damping structure and a truncated cone upper cover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing suspension designs are used, then the structure is simple, but the end stops are not protected from involuntary sudden movements and vibrations are not effectively absorbed
Solution Approach 1:
The lower end stop is segmented into three distinct functional components: an anchoring structure for mounting, a damping structure for vibration absorption, and an upper cover for protection. This segmentation allows each component to perform its specific function optimally while contributing to the overall reliability of the suspension system.
Solution Approach 2:
The damping structure is positioned between the anchoring structure and the upper cover to provide beforehand cushioning against involuntary sudden movements and vibrations. This prior cushioning protects the end stops from damage before the harmful effects can occur, enhancing reliability without requiring complex active protection systems.
2Object-affected harmful factors
If the damping structure is concentrically disposed on the anchoring structure and covered by the upper cover, then external vibrations and noises are absorbed, but the device complexity increases
Solution Approach 1:
The damping structure is nested concentrically on the anchoring structure, and the upper cover is nested concentrically on the damping structure. This nested arrangement creates a compact, integrated assembly that absorbs vibrations and noises effectively while maintaining a space-efficient design suitable for mobile air conditioning compressors.
Solution Approach 2:
The damping structure acts as an intermediary element between the anchoring structure and the upper cover. It mediates the transmission of external vibrations and noises, absorbing them before they can affect the compression unit, thereby reducing harmful factors without requiring complex isolation systems.
3Duration of action of stationary object
If the suspension protects from sudden movements, then the lifetime is extended, but the structure becomes more complex
Solution Approach 1:
The damping structure provides beforehand cushioning against involuntary sudden movements by being positioned between the anchoring structure and the upper cover. This protective arrangement extends the lifetime of the suspension components by preventing damage before it occurs, without requiring complex active protection mechanisms.
Solution Approach 2:
The damping structure functions as a flexible element that can deform to absorb sudden movements and vibrations. This flexible approach to protection extends component lifetime by accommodating shocks and vibrations, avoiding the need for complex rigid protection systems with multiple moving parts.
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 suspension effectively absorbs external vibrations and noises while preventing damage from sudden movements, ensuring the suspension's reliability and longevity in mobile applications by isolating the anchoring structure and reducing noise amplification.
Implementation Method 1
one intermediate spring disposed between the upper end stop and the lower end stop
Implementation Method 2
at least one lower end stop comprising at least one anchoring structure, at least one damping structure and at least one upper cover
Data Source
Figure 1~2
Figure 3
AI summary
The present invention relates to a suspension disposed between a compression unit and the hermetic housing of hermetic reciprocating compressors for mobile application, such as, for example, application in automotive vehicles and similar, and to the method of assembly of the components that constitute the referred suspension. According to the present invention, it is disclosed a suspension for hermetic reciprocating compressor for mobile application capable of reducing the effects of an eventual and involuntary sudden movement of the compression unit and also of minimizing the transfer of vibrations and noises deriving from the environment outside the hermetic housing to the compression unit.