Compressor with Integrated Accumulator for Size Reduction
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Solution Overview
Problem
Rotary compressors face issues with increased size, complex assembly processes, refrigerant leakage, vibration noise, and design flexibility due to the external installation of the accumulator, which affects the center of gravity and spatial installation of the compressor.
Innovation Solution
The compressor design integrates the accumulator within the shell, allowing for a unified assembly process, reduced size, and centralized gravity, with a stationary shaft supporting both ends and an eccentric portion for varying compression space, minimizing external components and enhancing design flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the accumulator is installed externally on the compressor, then the accumulator can be easily added to the system, but the compressor size increases and design flexibility is reduced
Solution Approach 1:
The accumulator is integrated into the compressor body, merging two separate components (accumulator and compressor) into a single unified structure. This eliminates the need for external accumulator installation while reducing the overall system size and improving design flexibility.
Solution Approach 2:
The accumulator chamber is nested within the compressor housing, with the accumulator positioned inside the shell surrounding the compression chamber. This nesting arrangement allows both components to occupy the same spatial envelope, reducing the total volume required.
2Ease of repair
If the accumulator is installed externally on the compressor, then the accumulator can be independently maintained, but assembly process becomes complex and refrigerant leakage risk increases
Solution Approach 1:
By integrating the accumulator into the compressor body with a unified sealing structure, the number of external connections and potential leakage points is reduced. The simplified assembly process eliminates complex external mounting while maintaining the ability to service the integrated unit.
3Quantity of substance
If the accumulator is installed externally on the compressor, then the accumulator capacity can be independently optimized, but vibration noise increases due to unbalanced center of gravity
Solution Approach 1:
The accumulator is positioned within the compressor shell such that its center of gravity aligns with the compressor's rotational axis. This integrated positioning ensures balanced weight distribution, eliminating vibration and noise caused by unbalanced external mounting while preserving full accumulator capacity.
4Adaptability or versatility
If the accumulator is installed externally on the compressor, then the accumulator can be added without modifying the compressor design, but spatial installation flexibility is reduced
Solution Approach 1:
The accumulator and compressor are designed as an integrated unit with the accumulator chamber formed within the compressor shell. This merging of components reduces the overall spatial footprint and improves installation flexibility while maintaining the ability to optimize accumulator capacity.
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 configuration reduces the compressor's size, simplifies assembly, minimizes refrigerant leakage, and decreases vibration noise by centralizing the accumulator's gravity, facilitating easier installation and operation.
Implementation Method 1
a compression device (400) rotated by the stationary shaft (300) to compress the refrigerant
Implementation Method 2
a roller vein (440) provided between the cylinder (410) and the eccentric portion (320) to compress the refrigerant while being rotated
Data Source
AI summary
A compressor is provided having an accumulator that forms an accumulating chamber in an internal space of a shell of the compressor, reducing a size of the compressor and simplifying an assembly process. A stationary shaft having a refrigerant suction passage may be directly connected to the accumulator to prevent leakage of refrigerant. Further, a center of gravity of the accumulator may correspond to a center of gravity of the compressor to reduce vibration noise of the compressor caused by the accumulator. Furthermore, both ends of the stationary shaft may be supported by a frame to reduce compressor vibration without using a separate bearing. An installation area of the compressor including the accumulator may be minimized to enhance design flexibility of an outdoor device employing the compressor and minimize interference with other components, thereby facilitating installation of the outdoor device.