Linear Compressor Support Device Vibration Isolation
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Solution Overview
Problem
Linear compressors experience vibration and noise issues during operation due to the transmission of these phenomena from the compressor body to the compressor casing, leading to increased noise levels.
Innovation Solution
A linear compressor design featuring a support device with a spiral spring and elastic connection portions that prevent direct contact between the compressor body and the shell, utilizing a combination of rigid and elastic components to absorb and block vibrations, thereby reducing noise transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a support device is used to prevent direct contact between the compressor body and shell, then collision prevention is improved, but vibration and noise transmission may increase
Solution Approach 1:
The patent introduces a support device as an intermediary component between the compressor body and the shell. This support device includes a support portion that contacts the compressor body and a fixing portion that attaches to the shell, creating a mediated connection that prevents direct contact while managing vibration and noise transmission through its structural design.
Solution Approach 2:
The support device is designed to provide beforehand cushioning by positioning the compressor body at a predetermined distance from the shell, preventing direct contact before collisions can occur. The structural configuration of the support device inherently absorbs and dampens vibrations, reducing noise transmission in advance.
2Volume of moving object
If the compressor body is positioned close to the shell for compactness, then device size is reduced, but collision risk and noise increase
Solution Approach 1:
The support device serves as a mediator that enables the compressor body to be positioned close to the shell for compactness while simultaneously preventing direct contact. The intermediary structure maintains a predetermined distance, ensuring collision prevention without sacrificing space efficiency.
3Stability of the object's composition
If rigid connection is used between compressor body and shell, then structural stability is improved, but vibration and noise transmission increase
Solution Approach 1:
The support device acts as an intermediary that provides structural stability through its connection between the compressor body and shell while simultaneously reducing vibration and noise transmission. The device's specific structural configuration allows it to maintain stability without acting as a direct transmission path for vibrations.
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 effectively reduces noise and vibration transmission by maintaining the compressor body spaced from the shell, enhancing operational quietness and preventing potential damage from collisions.
Implementation Method 1
a support device configured to connect the compressor body to the first shell cover to prevent the compressor body from contacting an inner peripheral surface of the shell
Implementation Method 2
an elastic connection portion formed to surround at least a portion of a periphery of the hole of the support spring to connect the support spring and the rigid connection portion
Data Source
Figure 1
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Figure 3
AI summary
A linear compressor (100) includes a shell (110), a shell cover (120), a compressor body disposed in the shell (110), and a support device (300) configured to connect the compressor body to the shell cover (120) to prevent the compressor body from contacting an inner peripheral surface of the shell (110), wherein the support device (300) includes a support spring (310) formed with a hole in a central portion (311) and having spiral spring arms (313) extending from the central portion to an outer portion (315), at least a portion of the outer portion (315) being connected to the compressor body, a rigid connection portion (320) spaced apart from the support spring (310) by a predetermined distance, and an elastic connection portion (330) formed to surround at least a portion of a periphery of the hole of the support spring (310) to connect the support spring (310) and the rigid connection portion (320) and coupled to the shell cover (120).