Scroll Compressor Drive Member Flange Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional scroll compressors face challenges in improving performance due to inefficiencies in the drive mechanism and compression chamber design.
Innovation Solution
The proposed solution involves a drive member for a scroll compressor, comprising a hub part with an internal hole and a flange part projecting radially outward. The flange part connects the drive member to the first scroll, enabling it to rotate and subsequently drive the second scroll to rotate. Additionally, the design includes fluid channels, oil grooves, and counterweight holes to enhance performance and balance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional drive mechanism is used in scroll compressor, then the structure is simpler, but the compression efficiency is lower
Solution Approach 1:
The drive member is segmented into functionally distinct parts: a hub part for rotational drive and a flange part for scroll connection. This segmentation allows each part to be optimized for its specific function, improving overall compression efficiency while maintaining manufacturing feasibility through modular design.
Solution Approach 2:
The flange part projects radially outward from the hub part, creating a three-dimensional structure that enables simultaneous rotational motion and axial connection. This dimensional transition allows the drive mechanism to achieve both drive function and scroll engagement without increasing planar footprint, thus improving compression efficiency without excessive complexity.
2Volume of moving object
If the compressor structure is made more compact, then the dimensions are reduced, but the performance may be compromised
Solution Approach 1:
The flange part is integrated with the hub part in a nested configuration where the flange projects from the hub. This nesting allows the drive member to maintain a compact overall volume while providing sufficient structural features for both rotation and scroll connection, thus reducing compressor dimensions without compromising operational efficiency.
3Productivity
If secondary compression is enabled, then the compression efficiency is improved, but the device complexity increases
Solution Approach 1:
The drive member with its hub and flange configuration serves multiple functions: it provides the primary rotational drive, enables the orbiting motion for compression, and facilitates the secondary compression through the interaction between the two scrolls. This multi-functionality achieves improved compression efficiency without requiring separate dedicated mechanisms for each function.
Data Source
AI summary
A drive member for a scroll compressor and the scroll compressor including the drive member. The scroll compressor includes a first scroll plate and a second scroll plate. The drive member includes a hub portion, which has an inner hole, wherein the hub portion includes a first end and a second end opposite to each other, and a flange portion, which extends radially outwards from the first end of the hub portion of the driving member. By means of the flange portion, the drive member is connected to the first scroll plate of the scroll compressor, such that the first scroll plate is driven to rotate. The scroll compressor has a compact structure, a small size and light weight.