Compressor Resonator Axial Spacing Noise Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing compressors face challenges with noise resonance and increased axial length due to the installation of noise-reducing components, leading to inefficient noise attenuation and higher manufacturing costs, particularly when attempting to target specific frequency bands.
Innovation Solution
A compressor design featuring a resonator positioned apart from the compression unit in the axial direction within the case, which includes a body with cavities and holes to absorb noise and prevent resonance, reducing noise reflection and resonance-induced noise increases, while also minimizing the compressor's axial length and installation space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a soundproofing member is installed on the inner surface of the case to reduce noise, then noise attenuation is improved, but the manufacturing cost increases significantly
Solution Approach 1:
The invention extracts the sound-absorbing function from the traditional complex multi-layer structure (sound-absorbing member, sound-absorbing structure, and thin metal plate) and implements it through a simplified resonator structure with cavities and holes, reducing manufacturing complexity and cost while maintaining noise attenuation effectiveness
Solution Approach 2:
The invention changes the structural parameters of the noise-reducing component by using a resonator with specific cavity volumes and hole configurations that can be optimized for different frequency bands, replacing the fixed multi-layer structure with adjustable geometric parameters that simplify manufacturing
2Object-affected harmful factors
If a complex sound-absorbing structure with multiple layers is installed on the inner surface of the case, then noise attenuation is improved, but the device complexity increases
Solution Approach 1:
The invention extracts the essential noise-reducing function from the complex multi-layer structure and implements it through a simplified resonator with cavities and holes, eliminating unnecessary layers while preserving the core acoustic attenuation capability
Solution Approach 2:
The resonator structure serves multiple functions: it acts as both a structural component of the compressor and a noise-reducing element, eliminating the need for separate soundproofing layers and simplifying the overall device structure
3Object-affected harmful factors
If noise-reducing components are installed in the case, then noise attenuation is improved, but the axial length of the compressor increases
Solution Approach 1:
The resonator is nested within the existing case structure, utilizing the available internal space efficiently. The cavities of the resonator are positioned to overlap with other components in the axial direction, preventing increase in overall compressor length while incorporating noise-reducing functionality
4Object-affected harmful factors
If a resonator is installed in the case to reduce noise, then noise attenuation is improved, but the axial length of the compressor increases
Solution Approach 1:
The resonator is designed to extend primarily in the radial direction rather than the axial direction, utilizing the radial space within the case to accommodate the noise-reducing structure without increasing the compressor's axial length
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 levels by absorbing specific frequency bands, lowers the compressor's overall height, and decreases manufacturing costs by eliminating the need for complex soundproofing structures, thereby enhancing operational efficiency and space utilization.
Implementation Method 1
a resonator disposed in a case at a position spaced apart from a compression unit in an axial direction... a resonator provided on an inner wall of one end portion of the case to be spaced apart from the compression unit in the axial direction so as to absorb noises emitted in the axial direction during an operation of the compression unit, thereby preventing an increase in noises inside the case due to resonance
Data Source
AI summary
A compressor includes: a case, a compression unit that is provided inside the case and that includes a cylinder and a piston configured to reciprocate inside the cylinder to compress refrigerant, a driving unit that includes a stator disposed inside the case and a plurality of permanent magnets configured to reciprocate with respect to the stator and that is configured to provide a driving force to the compression unit, and a resonator that is configured to reduce noises generated while the compression unit is operated, that is disposed between the compression unit and an inner surface of the case facing the compression unit in an axial direction, and that is spaced apart from the compression unit.