Refrigerant Introduction Tube Layout for Compressor Vibration Damping
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Solution Overview
Problem
Existing compressors experience vibration issues due to pressure pulsation of refrigerant, which can destabilize the compressor and affect the performance and safety of refrigeration systems.
Innovation Solution
The compressor design includes a refrigerant introduction tube that is overlapped with a welding point and fixed using a brazing filler material, reducing vibration by aligning the tube with the casing's cylindrical portion and using multiple welding points for stable fixation, thereby minimizing resonance and rattling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the refrigerant introduction tube is positioned away from welding points, then vibration and resonance are reduced, but the tube requires additional support structures increasing device complexity
Solution Approach 1:
The patent uses the welding point as an intermediary element that serves dual purposes: it provides structural support for the refrigerant introduction tube and acts as a vibration damping location. The tube is positioned to overlap with the welding point in plan view, allowing the welding joint to function as both a mechanical connector and a vibration absorption point, thereby eliminating the need for additional support structures.
2Stability of the object's composition
If multiple welding points are used to fix the compression mechanism, then stability and vibration resistance improve, but manufacturing time and complexity increase
Solution Approach 1:
The welding points are designed to perform multiple functions simultaneously: they provide structural support for the compression mechanism, serve as attachment points for the refrigerant introduction tube, and act as vibration damping locations. This multi-functionality reduces the need for separate components and simplifies the manufacturing process while maintaining high stability.
3Strength
If the refrigerant introduction tube is fixed rigidly, then structural stability improves, but vibration and noise increase due to resonance
Solution Approach 1:
The patent converts the potential harm of rigid fixation (which causes vibration and noise) into a benefit by positioning the tube to overlap with welding points. The welding joints, being inherently stiffer and more damped than other connection points, are used to absorb and dampen vibrations, transforming what would be a source of resonance into a vibration control mechanism.
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
This design effectively reduces compressor vibration, stabilizes the system, and enhances safety and performance by minimizing noise and ensuring stable operation of refrigeration equipment.
Implementation Method 1
The refrigerant introduction tube is overlapped with the first welding point in plan view seen along a direction in which the axis line. The refrigerant introduction tube is configured to guide a refrigerant to the compression chamber.
Data Source
AI summary
A compressor includes a casing, a compression mechanism, and a refrigerant introduction tube. The casing includes a cylindrical portion surrounding an axis line. The compression mechanism includes a compression chamber. The compression mechanism is welded to the cylindrical portion at a first welding point. The refrigerant introduction tube is configured to guide a refrigerant to the compression chamber. The refrigerant introduction tube overlaps with the first welding point in a plan view seen along a direction in which the axis line extends.