Compressor and refrigeration apparatus
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Solution Overview
Problem
Existing compressor connection pipe assemblies face inefficiencies in welding due to high costs and inconsistent solder distribution, primarily because they use copper pipes, leading to inefficient welding processes.
Innovation Solution
The compressor design replaces copper pipes with steel pipes for the suction and guide pipes, using high-frequency induction brazing to connect them, with carefully controlled welding gaps to ensure uniform solder distribution and improved welding efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If copper pipes are used for connection pipe assembly, then thermal conductivity is improved, but cost increases and welding efficiency deteriorates
Solution Approach 1:
The patent replaces expensive copper pipes with cheaper steel pipes for the connection pipe assembly. While copper has superior thermal conductivity, steel provides adequate performance at lower cost and enables more efficient welding processes, particularly high-frequency induction welding, thereby resolving the contradiction between material cost and welding efficiency.
Solution Approach 2:
The patent changes the material parameter from copper to steel, which fundamentally alters the welding characteristics. Steel pipes enable high-frequency induction welding with higher efficiency and better solder distribution uniformity compared to copper pipes, thus improving welding productivity while accepting a trade-off in thermal conductivity.
2Temperature
If copper pipes are used for connection pipe assembly, then thermal conductivity is improved, but cost increases
Solution Approach 1:
The patent substitutes expensive copper material with cheaper steel material for the connection pipe assembly. This material substitution directly reduces the quantity of expensive substance (copper) used while maintaining functional adequacy, thereby resolving the contradiction between thermal conductivity performance and material cost.
3Stability of the object's composition
If welding is applied to copper pipe connection, then fixed connection is achieved, but solder distribution uniformity deteriorates
Solution Approach 1:
The patent replaces traditional flame-based welding mechanics with high-frequency induction welding. This substitution generates uniform heat distribution through electromagnetic induction, which significantly improves solder distribution uniformity in the welding gap while maintaining the fixed connection stability between pipe components.
Solution Approach 2:
The patent changes the welding process parameters by using high-frequency induction heating instead of conventional flame heating. This parameter change creates more uniform thermal fields during welding, leading to better solder distribution uniformity while still achieving reliable fixed connections between the connection pipe and guide pipe.
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 costs by minimizing copper usage, enhances welding efficiency, and ensures better welding quality by optimizing the welding gaps and solder distribution.
Implementation Method 1
The connection pipe is fixedly connected to the suction pipe through high-frequency induction brazing; and the connection pipe is fixedly connected to the guide pipe through high-frequency induction brazing
Data Source
AI summary
A compressor and a refrigeration apparatus are provided. The compressor has a compressor body, a reservoir and a connection pipe. The compressor body has a housing and a compression assembly disposed in the housing. A compression cavity is defined by the compression assembly and has an air suction port. A guide pipe is disposed at the housing. The reservoir has a suction pipe. The connection pipe is disposed in the guide pipe. A first end of the connection pipe is connected to the air suction port. The suction pipe is disposed in the connection pipe and connected to a second end of the connection pipe. The connection pipe can be a copper pipe. Each of the suction pipe and the guide pipe can be a steel pipe.