Scroll Compressor Orbit Control via Segmented Guide Holes
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Solution Overview
Problem
Existing orbit control structures for scroll compressors are complex, costly, heavy, and lack durability due to their numerous parts and manufacturing difficulties.
Innovation Solution
An orbit control device comprising a support plate with support holes and a guide plate with guide holes, where pins are received in both to guide the orbit scroll's movement, minimizing weight, complexity, and maximizing durability by using a simpler design with aligned holes and pins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional orbit control structures (ball coupling ring, eccentric motion bearing, Oldham coupling, pin and barrel, pin and ring) are used, then the orbit scroll can maintain desired trajectory, but the device becomes complex, costly, heavy, and less durable
Solution Approach 1:
The guide hole is divided into two functional segments: a cylindrical portion for supporting the pin and a tapered portion for guiding the orbit scroll's movement. This segmentation allows each portion to perform its specific function optimally while simplifying the overall structure by eliminating the need for multiple separate components.
Solution Approach 2:
The single guide hole structure performs multiple functions: it supports the pin through the cylindrical portion and guides the orbit scroll's trajectory through the tapered portion. This multi-functionality replaces the need for multiple separate control structures, reducing device complexity while maintaining durability.
2Manufacturing precision
If traditional orbit control structures with numerous parts are used, then trajectory control is achieved, but manufacturing cost and difficulty increase
Solution Approach 1:
The support function and guidance function are merged into a single guide hole structure. The cylindrical portion provides support while the tapered portion provides guidance, combining what would traditionally require separate components into one integrated feature that is easier to manufacture.
Solution Approach 2:
The invention extracts only the essential functions needed for orbit control (support and guidance) and implements them through minimal structures (pin and guide hole with two portions), eliminating unnecessary complex components and reducing manufacturing difficulty.
3Stability of the object's composition
If traditional orbit control structures are used, then orbit stability is maintained, but weight increases
Solution Approach 1:
The guide hole is segmented into a cylindrical support portion and a tapered guidance portion, allowing the structure to maintain orbit stability through precise geometric design rather than through added mass. This segmentation enables weight reduction while preserving the necessary control functions.
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
The solution effectively minimizes cost, complexity, and weight while maximizing durability by guiding the orbit scroll's movement with a reduced number of parts, enhancing operational efficiency and reducing manufacturing challenges.
Implementation Method 1
an outer surface of the pin travels adjacent an inner surface of the guide hole to militate against a deviation from a desired path of travel by the orbit scroll
Data Source
AI summary
An orbit control device for a scroll compressor is disclosed including at least one pin disposed in an orbit scroll, a support plate having at least one support hole formed therein, and a guide plate having at least one guide hole formed therein. Contact of an outer surface of the pin with an inner surface of the guide hole militates against a deviation by the orbit scroll from a desired trajectory.