Plastic Muffler Body with Segmented Vibration Eliminator
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Solution Overview
Problem
Compressors face efficiency losses due to heat transfer from high-temperature refrigerant to metal components, and existing solutions struggle with non-metal muffler body materials that are difficult to connect and limit complex duct designs for acoustic damping.
Innovation Solution
A compressor design featuring a muffler body made of plastic with a segmented vibration eliminator, fastened by a coupling member between front and rear covers without welding, allowing for various materials and improved acoustic damping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the muffler body is made of metal, then it is easy to connect to the vibration eliminator by welding, but it increases heat transfer from the high-temperature refrigerant to the compressor components
Solution Approach 1:
The patent changes the material parameter of the muffler body from metal to plastic, fundamentally altering the thermal conductivity property. This plastic material has low thermal conductivity, which reduces heat transfer from the high-temperature refrigerant to the compressor components while still allowing for effective connection through the coupling member mechanism
Solution Approach 2:
The patent introduces a coupling member as an intermediary element between the muffler body and the vibration eliminator. This coupling member enables connection without requiring welding of the muffler body itself, allowing the use of plastic material while maintaining structural integrity and connectivity
2Loss of energy
If the muffler body is made of non-metal material, then heat transfer is reduced, but it creates difficulties in connecting to the vibration eliminator and enabling gas intake and discharge
Solution Approach 1:
The coupling member serves as a mediator that bridges the muffler body and vibration eliminator. It has a cavity that receives the vibration eliminator and extends to contact the front and rear covers, enabling secure connection of the plastic muffler body without welding while maintaining gas flow pathways
Solution Approach 2:
The muffler body is segmented into front and rear sections that can be assembled around the vibration eliminator. The coupling member passes through holes in both covers and creates a pulling force to secure both sections, allowing modular assembly of the non-metallic structure
3Strength
If welding is used to connect the muffler body to the vibration eliminator, then the connection is strong, but it limits material options and increases manufacturing complexity
Solution Approach 1:
The patent replaces the welding process (thermal/chemical joining) with a mechanical connection system using the coupling member. The coupling member creates a pulling force that secures the muffler body to the vibration eliminator through friction and mechanical interlocking, eliminating the need for welding and enabling use of plastic and other non-weldable materials
Solution Approach 2:
The coupling member acts as an intermediary that provides the strong connection previously achieved through welding, but through mechanical means only. This allows the muffler body to be made from versatile material options including plastic, while maintaining connection strength through the biased coupling member's mechanical engagement
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
This design reduces heat transfer and enhances operational efficiency by using plastic for the muffler body, which decreases thermal conductivity and facilitates assembly, while enabling complex duct designs for better acoustic performance.
Implementation Method 1
The muffler body being made of plastic decreases the thermal conductivity, thereby reducing the heat transmitted to the inner environment and the components of the compressor
Implementation Method 2
The muffler body positioned between said covers, is fastened by the coupling member contacting the front cover and the rear cover and creating a pulling force between the front cover and the rear cover
Implementation Method 3
a vibration eliminator whose other end is fastened on a terminal opening to the outer environment
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present invention relates to a compressor (1) comprising a housing (2) enclosing the movable parts, a body (3) on which the parts are gathered, a vibration eliminator (5) placed on the body (3) with one of its ends and whose other end is fastened on a terminal (4) provided on the housing (2) and opening to the outer environment, and a muffler body (8) provided on the vibration eliminator (5), segmenting the vibration eliminator (5) into two parts and placed on the vibration eliminator (5) by means of a front cover (6) and a rear cover (7).