Linear Compressor Gas Layer Insulation to Reduce Frame Heat Loss
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Solution Overview
Problem
Linear compressors experience heat loss and reduced compression efficiency due to high temperature and high pressure gases transferring heat to the frame, leading to inefficiencies in refrigerant compression.
Innovation Solution
A compressor design incorporating a gas layer between the discharge cover assembly and the frame, which minimizes heat transfer by using a low thermal conductivity gas layer to insulate the frame from the high temperature and pressure gases, thereby reducing heat loss and improving compression efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the discharge space is directly coupled to the frame, then the structure is simple, but heat transfer from high temperature gas to frame increases causing heat loss and reduced compression efficiency
Solution Approach 1:
The patent introduces a frame cover as an intermediary component between the discharge space and the frame. This frame cover acts as a thermal barrier that mediates the heat transfer process, preventing direct thermal coupling while maintaining structural integrity. The intermediary element solves the heat loss problem without requiring complete redesign of the basic structure.
Solution Approach 2:
The frame structure is segmented into multiple components: the main frame, the frame cover, and the discharge space. By dividing the structure into separate segments, the patent creates thermal isolation zones. The frame cover segment specifically addresses heat transfer by being positioned between the hot discharge space and the cooler frame, reducing thermal coupling while maintaining structural functionality.
2Productivity
If a frame cover is introduced to reduce heat transfer, then compression efficiency is improved, but the device complexity increases
Solution Approach 1:
The frame cover is designed to perform multiple functions simultaneously: it serves as a thermal barrier to reduce heat transfer, provides structural support for the discharge space, and maintains the sealed environment. By making the frame cover multi-functional, the patent improves compression efficiency without adding excessive complexity, as the same component addresses multiple requirements.
Solution Approach 2:
The patent modifies thermal parameters by introducing the frame cover with specific thermal properties. The frame cover's material selection and geometric parameters are optimized to control heat transfer rates. By changing the thermal parameters through this additional component, compression efficiency is improved while the complexity increase is managed through parameter optimization rather than fundamental design changes.
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 gas layer effectively reduces heat transfer from the discharge space to the frame, preventing heat loss and enhancing compression efficiency by maintaining a lower temperature on the frame, thus improving the overall performance of the compressor.
Implementation Method 1
a gas layer is formed between the discharge cover assembly and the frame... the high temperature and high pressure gas acts as a heat source and generates heat transfer to a frame of a relatively low temperature, leading to a heat loss... The gas layer effectively reduces heat transfer from the discharge space to the frame
Data Source
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AI summary
A compressor (100) for compressing and discharging a refrigerant sucked inside a cylinder includes a frame (300) configured to support the cylinder (400), and a discharge cover assembly (200) disposed in front of the frame (300). A gas layer (800) is formed between the discharge cover assembly (200) and the frame (300).