Centroid-Adjusting Recess in Scroll Compressor Hub
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Solution Overview
Problem
The existing scroll compressor technologies face challenges in precisely aligning the centroid of the orbiting scroll apparatus, leading to unbalanced centrifugal forces and inefficiencies, which are costly to address due to the need for redesigning casting molds for different compressor platforms.
Innovation Solution
The orbiting scroll apparatus incorporates a hub with centroid-adjusting recesses, such as holes and grooves, that can be machined post-casting to adjust the centroid accurately, allowing for flexible alignment to meet specific noise or efficiency requirements without the need for costly mold redesigns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the centroid of the orbiting scroll apparatus is accurately determined by accurately designing the casting mold, then the manufacturing precision is improved, but the manufacturing cost increases and the adaptability decreases
Solution Approach 1:
The hub is divided into a main body and an adjustable weight portion. The weight portion can be separately adjusted or removed, allowing the centroid to be modified without redesigning the entire casting mold. This segmentation enables independent optimization of the centroid position while maintaining the original mold structure.
Solution Approach 2:
The weight portion of the hub is designed to be adjustable rather than fixed. By providing adjustable weights or movable mass elements, the centroid position can be dynamically changed to match different compressor platform requirements, eliminating the need for costly mold redesigns.
2Manufacturing precision
If the centroid of the orbiting scroll apparatus is accurately determined by accurately designing the casting mold, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The hub structure is segmented into a fixed main body and an adjustable weight portion. This separation allows the majority of the hub to remain simple in design while only the weight portion requires precise adjustment mechanisms, reducing overall design complexity.
Solution Approach 2:
The adjustable weight system is designed to be self-adjusting through simple mechanical means such as gravity-based positioning or spring-loaded mechanisms, eliminating the need for complex control systems or sophisticated mold designs.
3Adaptability or versatility
If the same casted orbiting scroll apparatus is applied to different compressor platforms with centroid adjustment, then the adaptability is improved, but the manufacturing precision may deteriorate
Solution Approach 1:
The hub is pre-designed with standardized adjustment features such as pre-drilled holes, guide slots, or predetermined weight positions. These preliminary preparations enable precise centroid adjustment when the apparatus is applied to different compressor platforms, maintaining manufacturing precision while enhancing adaptability.
Solution Approach 2:
The centroid position is adjusted by changing physical parameters such as weight distribution, mass location, or density configuration within the hub. By providing discrete adjustment options with known parameter values, precise centroid positioning can be achieved across different platforms without sacrificing manufacturing precision.
Data Source
AI summary
Disclosed are a movable scroll device for a scroll compressor and a method for manufacturing same. The method includes: manufacturing the movable scroll device by means of casting steps, so that the movable scroll device includes a movable scroll end plate, with a movable scroll blade provided on a first side face of the movable scroll end plate; and a hub vertically extending outwards from the middle of a second side face of the movable scroll end plate; and fabricating at least one centroid adjustment recess on the hub. By the method, the centroid of the movable scroll device can be adjusted in a more flexible, precise, active and targeted manner.