Floating Apparatus for Scroll Compressors with Multi-Function Protection
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Solution Overview
Problem
Existing scroll compressor protection mechanisms fail to adequately prevent damage from high temperature and high pressure conditions due to inadequate sealing and machining difficulties in gliding block designs, which concentrate force and lead to unsatisfactory sealing and increased machining complexity.
Innovation Solution
A floating apparatus for scroll compressors with a frame divided into high-pressure and low-pressure zones, featuring a gliding block with a high-pressure via hole and radial side holes, a backflow-proof unit, a pressure protection unit, and a temperature protection unit, distributed acting force for improved sealing, and simplified machining through a ring element assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gliding block design is used to prevent high-pressure fluid leakage, then backflow prevention is improved, but the contact area between the gliding block and scroll pair becomes very small resulting in unsatisfactory sealing
Solution Approach 1:
The gliding block is segmented into multiple functional regions: a first gliding block for primary sealing, a second gliding block for additional sealing support, and integrated backflow-proof elements. This segmentation allows each component to specialize in specific functions, improving overall sealing quality while maintaining backflow prevention capability.
Solution Approach 2:
The invention transitions from a single-point contact design to a multi-dimensional sealing approach by adding a second gliding block that contacts the scroll pair at a different location and orientation, thereby increasing the effective contact area and sealing surface without compromising backflow prevention.
2Reliability
If a blind hole design with valve plate is used for backflow-proof element, then backflow prevention is achieved, but the machining difficulty of gliding block increases
Solution Approach 1:
The backflow-proof element is extracted from the blind hole design and repositioned to contact the discharge port directly. This extraction eliminates the need for complex blind hole machining and valve plate assembly, simplifying the manufacturing process while maintaining effective backflow prevention through direct port sealing.
Solution Approach 2:
Instead of creating a blind hole and placing a valve plate inside it, the invention inverts the approach by having the backflow-proof element form part of the gliding block structure itself that directly seals against the discharge port, reversing the traditional design logic and simplifying manufacturing.
3Reliability
If separate protection mechanisms are used for temperature and pressure protection, then protection coverage is improved, but device complexity increases
Solution Approach 1:
The temperature protection mechanism and pressure protection mechanism are merged into a single integrated floating apparatus structure. Both protection functions share common components such as the floating mechanism, chamber structures, and actuation systems, thereby providing comprehensive protection coverage while reducing overall device complexity through component sharing and functional integration.
Solution Approach 2:
The floating apparatus is designed with multi-functionality, serving simultaneously as a backflow-proof mechanism, temperature protection device, and pressure protection device. This universal design allows a single apparatus to perform multiple protective functions, reducing the need for separate dedicated mechanisms for each protection type.
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
Enhances the stability and performance of scroll compressors by distributing acting force, improving sealing, and effectively preventing damage from high temperature and high pressure conditions through responsive pressure-drop and temperature dissipating operations.
Implementation Method 1
causing a pressure-drop operation... protecting the scroll compressor from being damaged by high pressure
Implementation Method 2
causing a temperature dissipating operation... protecting the scroll compressor from being damaged by high temperature
Data Source
AI summary
An improved floating apparatus for scroll compressors is disclosed, which is a multi-function device integrating a temperature protection mechanism, a pressure protection mechanism and a backflow-proof mechanism and therefore substantially is a floating seal member with overheating protection, high pressure protection and backflow-proof capabilities. In detail, the present disclosure provides a floating apparatus for scroll compressors that not only can be manufactured easily, but also capable of distributing the acting force resulting from the gliding block for providing better sealing effect while preventing the scroll compressors from being damaged by high temperature and high pressure.