Accumulator fixing device for compressor and compressor having the same
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Solution Overview
Problem
Existing accumulator fixing devices for compressors are vulnerable to noise due to vibration, with simple welded brackets providing inadequate durability and increasing the complexity of assembly, leading to increased manufacturing costs and noise transmission.
Innovation Solution
A bracket structure with a cavity on one surface facing the compressor, featuring first and second arm portions connected to the accumulator and housing respectively, which reduces vibration transmission by canceling out mutual responses between the arm portions and supporting structures, while maintaining the shape of existing welded brackets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple welded bracket is used to fix the accumulator, then the manufacturing cost is reduced and the structure is simplified, but the noise characteristics deteriorate and vibration transmission increases
Solution Approach 1:
The bracket is divided into multiple arms (first arm portion and second arm portion) that are selectively coupled to different components. This segmentation allows each arm to be optimized for its specific function while maintaining overall structural simplicity and cost-effectiveness.
Solution Approach 2:
The bracket acts as an intermediary structure between the accumulator and the compressor housing, providing vibration isolation and noise reduction functionality while maintaining the simple welded construction approach.
2Device complexity
If a welded bracket structure is used to fix the accumulator, then the assembly complexity is reduced, but the durability and vibration resistance deteriorate
Solution Approach 1:
The bracket structure incorporates dynamic vibration isolation capabilities through its multi-arm configuration, allowing it to adapt to and resist vibrations while maintaining a simple static welded appearance and assembly process.
Solution Approach 2:
The bracket employs a composite structure combining multiple arm portions with different coupling mechanisms, integrating the simplicity of welded construction with the durability of multi-point attachment to enhance vibration resistance.
3Productivity
If the accumulator is fixed with a simple bracket, then the manufacturing process is simplified, but the noise transmission from vibration increases
Solution Approach 1:
The bracket is segmented into multiple functional arms that can be independently optimized for noise reduction while maintaining manufacturing efficiency through standardized welding procedures and modular construction.
Solution Approach 2:
Different portions of the bracket are designed with specific local characteristics - the first arm portion for accumulator coupling and the second arm portion for housing coupling - allowing each region to address specific noise transmission paths while maintaining overall manufacturing simplicity.
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 proposed solution effectively reduces noise and vibration transmission from the compressor, improving noise characteristics and reducing the complexity of assembly, while maintaining the existing bracket shape and structure.
Implementation Method 1
The bracket body has a surface facing the compressor and defines a cavity at the surface. The cavity is configured to reduce vibration generated and transmitted from the compressor.
Data Source
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AI summary
An accumulator fixing device (70) for a compressor includes a bracket body (71), a first arm (72) extending from the bracket body and coupled to an accumulator (50), and a second arm (73) extending from the bracket body and coupled to a housing of a compressor (10). The bracket body (71) has a cavity (71a) formed concavely on one surface facing the compressor (10) to reduce vibration generated and transmitted from the compressor.