Compressor Damping Member Layout for Motor Vibration Isolation
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Solution Overview
Problem
Existing compressors in cooling devices suffer from inefficient vibration damping, leading to excessive noise generation and reduced operational safety due to vibrations transmitted from the motor group to the casing.
Innovation Solution
A compressor design incorporating a flexible damping member attached to a bracket between the motor group and support springs, which oscillates to absorb vibrations and prevent their transmission to the casing, featuring adjustable mass and length configurations for optimal damping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If support springs are used to support the motor group, then the motor group is supported and vibrations are transmitted to the casing, but the vibrations cause noise generation and wear
Solution Approach 1:
A bracket is introduced as an intermediary component between the motor group and the support springs. The bracket serves as a mediator that decouples the direct vibration transmission path, allowing the support springs to provide structural support while the bracket absorbs and isolates vibrations, preventing their direct transmission to the casing.
Solution Approach 2:
A damping member made of rubber or elastomer is attached to the bracket. This damping component is designed to be relatively simple and can be replaced if needed, providing effective vibration damping through its material properties while being cost-effective and easy to maintain.
2Object-generated harmful factors
If damping members are provided on the casing, then vibration damping is attempted, but the damping efficiency is insufficient and noise level cannot be reduced
Solution Approach 1:
The damping member is positioned on the bracket before vibrations are transmitted to the casing, performing preliminary damping action. By placing the damping component upstream in the vibration transmission path, the vibrations are attenuated before they reach the casing, significantly improving damping efficiency and reducing noise levels.
Solution Approach 2:
The damping member is strategically positioned at the bracket where vibrations are most intense, providing localized damping where it is most needed. This targeted approach concentrates damping effectiveness at the critical vibration source rather than distributing damping components throughout the entire casing.
3Ease of manufacture
If the damping member is positioned below the bracket, then mounting is simple, but the damping member may get stuck between the casing and bracket reducing operational safety
Solution Approach 1:
Instead of positioning the damping member below the bracket as in conventional designs, the damping member is inverted and positioned on the upper side of the bracket. This inversion eliminates the risk of the damping member getting trapped between the casing and bracket, ensuring operational safety while maintaining ease of installation.
4Object-generated harmful factors
If multiple damping members with different lengths and masses are used, then vibrations of different frequencies and amplitudes are damped more effectively, but the device complexity increases
Solution Approach 1:
The damping member is designed with adjustable parameters including variable length, adjustable mass through attached weights, and configurable material properties. By optimizing these parameters, a single damping member can effectively dampen vibrations across multiple frequencies and amplitudes, achieving broad-spectrum damping without increasing device complexity.
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
Effectively reduces noise levels and prevents vibration-induced wear, enhancing operational safety and extending the compressor's economic life.
Implementation Method 1
at least one damping member which is attached to the bracket from one end with the other end being free and which provides the damping of the vibrations generated by the motor group by making an oscillating movement from the free end thereof
Implementation Method 2
which provides the damping of the vibrations generated by the motor group by making an oscillating movement from the free end thereof
Data Source
Figure 1~2
Figure 3~4
AI summary
The present invention relates to a compressor (1) suitable to be used in cooling devices, comprising a casing (2); a motor group (3) disposed in the casing and having a cylinder (4) which is disposed in the casing (2) and wherein the circulation fluid is compressed, a cylinder head (5) which is disposed on the cylinder (4) and a suction muffler (6) which is suitable for use by being attached to the cylinder head (5) and which provides the damping of the noise generated by the circulation fluid passing therethrough; and a plurality of support springs (7) which are disposed on the casing (2) and which support the motor group (3).