Compressor Clutch Attenuation Structure for Noise and Vibration
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Solution Overview
Problem
Conventional clutches in compressors experience significant noise and vibration due to the contact and separation between the pulley and disk, which are not effectively attenuated, leading to discomfort and operational issues.
Innovation Solution
Incorporating an attenuation member between the elastic member and the disk, which includes a first and second attenuation member that interact differently during contact and separation periods to reduce noise and vibration by altering the contact surfaces and increasing the elastic force, thereby mitigating the impact and vibration transferred through the clutch components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the disk and pulley are made to contact directly for power transmission, then the power transmission efficiency is improved, but noise and vibration increase significantly
Solution Approach 1:
The patent introduces an attenuation member as an intermediary component between the disk and pulley. This attenuation member absorbs and reduces the noise and vibration generated during contact, while still allowing effective power transmission. The attenuation member acts as a mediator that enables the disk and pulley to contact for power transmission without directly transmitting the harmful noise and vibration to the compressor.
2Speed
If the elastic force is increased to reduce disk movement, then the responsiveness is improved, but the impact and vibration during contact increase
Solution Approach 1:
The attenuation member serves as an intermediary that decouples the relationship between elastic force and vibration transmission. By introducing this intermediate layer, the system can maintain high elastic force for rapid responsiveness while the attenuation member absorbs the resulting impact and vibration, preventing their direct transmission to the compressor.
Solution Approach 2:
The attenuation member provides beforehand cushioning by being pre-positioned between the disk and pulley. It is designed to absorb and attenuate the impact and vibration before these harmful factors can propagate to the compressor, thus cushioning the system in advance against the effects of high elastic force.
3Object-generated harmful factors
If the disk is separated from the pulley to reduce vibration, then the noise and vibration are reduced, but the power transmission is interrupted
Solution Approach 1:
The attenuation member enables continuous contact between the disk and pulley by serving as a mediator that eliminates the need for separation. It absorbs the vibration and noise that would otherwise require separation to mitigate, thus allowing power transmission to continue uninterrupted while still reducing harmful factors.
4Device complexity
If conventional clutch components are used without attenuation members, then the device complexity is reduced, but noise and vibration attenuation is insufficient
Solution Approach 1:
The attenuation member is a relatively simple intermediary component that can be integrated into the existing clutch structure. It adds minimal complexity while providing significant noise and vibration attenuation, thus resolving the contradiction between structural simplicity and effective attenuation.
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 during both contact and separation periods, improving the responsiveness and operational stability of the clutch, while preventing the transfer of unwanted vibrations to the compressor, thus enhancing user experience and compressor performance.
Implementation Method 1
the attractive force caused by the magnetic induction of the field coil assembly
Implementation Method 2
an elastic member that fastens the hub and the disk such that the disk is movable toward or away from the pulley with respect to the hub and applies an elastic force to the disk
Data Source
AI summary
Disclosed herein are a clutch and a compressor including the same. The clutch includes a hub fastened to a rotary shaft of the compressor to be rotatable together with the rotary shaft in a state in which a position of the hub is fixed, a disk fastened to the hub to be rotatable together therewith, a pulley rotated by power transmitted from a drive source of the compressor, an elastic member for fastening the hub and the disk such that the disk is movable toward or away from the pulley with respect to the hub, a field coil assembly magnetized when electric power is applied thereto to allow the disk and the pulley to come into contact with or separate from each other, and an attenuation member interposed between the elastic member and the disk. Accordingly, it is possible to reduce noise and vibration due to contact and separation between the disk and the pulley by the elastic member and the attenuation member.