Linear Compressor Suspension Stop Elements
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing suspension systems for linear compressors, particularly those using flat springs, face issues during handling and transport where intense relative movements can cause parts of the motor-compressor assembly to impact the shell, leading to potential damage and risk of accidents, and the springs may break under great forces.
Innovation Solution
The introduction of stop elements with a mounting portion attached to the shell and a free end portion that includes a through hole for the mounting element, positioned to prevent impacts between the motor-compressor assembly and the shell, while maintaining the vibration-dampening functionality of the flat springs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If flat springs with low transversal flexibility are used to support the compressor, then the compressor is well supported with minimal deformation, but the springs can break under great forces during handling and transport
Solution Approach 1:
The patent introduces stop elements that limit the travel of the motor-compressor assembly beforehand, preventing excessive deformation of the flat springs during handling and transport. The stop elements act as a protective measure in advance, cushioning against forces that would otherwise break the springs while maintaining their support capability.
2Object-generated harmful factors
If flat springs with low transversal flexibility are used, then vibration transmission to the shell is minimized, but the motor-compressor assembly can impact the shell during intense movements
Solution Approach 1:
The stop elements serve as intermediary components between the motor-compressor assembly and the shell. They mediate the interaction by providing a controlled stopping point that prevents direct impact with the shell while allowing the flat springs to continue functioning as vibration dampeners.
3Loss of energy
If the suspension system allows free movement to dampen vibrations, then vibration attenuation is effective, but parts can impact the shell during transport
Solution Approach 1:
The suspension system is segmented into two functional zones: the flat springs provide vibration damping through controlled deformation, while the stop elements provide impact prevention through geometric constraints. This segmentation allows each component to specialize in one function, resolving the contradiction between vibration attenuation and impact protection.
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
Prevents impacts between the motor-compressor assembly and the shell, thereby protecting sensitive parts and preventing suspension spring breakage, while maintaining effective vibration attenuation.
Implementation Method 1
the suspension springs, due to their little transversal and lateral flexibility, can break when submitted to great forces
Implementation Method 2
stop elements, each having a mounting portion rigidly attached to the shell and a free end portion disposed between a respective end of the motor-compressor assembly and the adjacent suspension spring
Implementation Method 3
The function of the suspension springs is to minimize the transmission of vibration from the motor-compressor assembly to the shell
Data Source
Figure 1~1A
Figure 2~2A
Figure 3~4
AI summary
The suspension system is applied in a compressor, presenting: a shell (1) in which interior is horizontally suspended a motor-compressor assembly (10) having opposite ends (10a, 10b) that are spaced from the shell (1) by an axial spacing (AA). Mounting elements (20) are each axially attached to an end (10a, 10b) of the motor-compressor assembly (10) and suspension springs (30) are mounted to the shell (1) and to each respective mounting element (20). The suspension system comprises stop elements (40) attached to the shell (1) and having a free end portion (42) disposed between a respective end (10a, 10b) of the motor-compressor assembly (10) and the adjacent suspension spring (30). A first distance (d) defined between the stop element (40) and the adjacent end (10a, 10b) of the motor-compressor assembly (10) is smaller than the axial spacing (AA) and smaller than a second distance (D) defined between the stop element (40) and an adjacent suspension spring (30).