Scroll Compressor Gasket Retainer Structure Against Valve Plate Deformation
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Solution Overview
Problem
Conventional scroll compressors experience deformation of the valve plate and gasket retainer due to inadequate support from the fastening bolt, leading to instability and noise, as the bead portion of the gasket retainer is not connected around the fastening hole, causing deformation to be transmitted to the inner side portion supporting the injection valve.
Innovation Solution
The gasket retainer is designed with first and second half-beads that contact each other to form a convex full-bead at a space apart from the fastening holes, and a hole extending around the outer side of the retainer portion is formed to prevent direct connection, along with wing portions to maintain the retainer's inclination, ensuring uniform surface pressure and minimizing deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the bead portion of the gasket retainer is pressed to secure the injection valve assembly, then the fastening force is improved, but the valve plate deforms and the gasket retainer loses its flat shape
Solution Approach 1:
The gasket retainer is divided into a bead portion and a retainer portion that are not directly connected, allowing the bead portion to be pressed for fastening while the retainer portion maintains its flat shape to support the injection valve assembly stably
Solution Approach 2:
A hole is formed to extend around the outer side of the retainer portion, acting as an intermediary that prevents direct connection between the bead portion and retainer portion, thereby preventing deformation transmission while still allowing the assembly to be secured
2Stability of the object's composition
If the bead portion is directly connected to the retainer portion to provide structural support, then the structural integrity is improved, but deformation is transmitted to the inner side portion supporting the injection valve
Solution Approach 1:
The gasket retainer is segmented into a bead portion and a retainer portion separated by a hole, breaking the direct connection to prevent deformation transmission while maintaining sufficient structural integrity for each portion to perform its specific function
3Stability of the object's composition
If the valve plate is fastened with a fastening bolt to secure the assembly, then the assembly stability is improved, but the valve plate deforms convexly in the opposite direction due to lack of support
Solution Approach 1:
The hole structure acts as an intermediary that allows the fastening bolt to secure the assembly through the bead portion while preventing the deformation caused by the bolt from being transmitted to the valve plate, thereby maintaining valve plate shape stability
Data Source
AI summary
A scroll compressor, more particularly, a scroll compressor capable of minimizing deformation of a valve plate of an injection valve assembly, and maintaining a flat shape of the gasket retainer, since deformation is not transmitted to an inner side portion of the gasket retainer supporting an injection valve even when the bead portion of the gasket retainer is pressed.