Compressor Motor and Oil Cooling via Integrated Fluid Passage
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Solution Overview
Problem
Compressors lack an efficient method for cooling both the motor and oil passages simultaneously, leading to suboptimal performance and increased space requirements due to separate cooling systems.
Innovation Solution
Incorporating a low-temperature fluid passage forming unit within the compressor housing to cool the motor and an oil passage forming unit with an integrated oil cooler, where the oil passage is arranged to face the low-temperature fluid passage for heat exchange, allowing for simultaneous cooling of both components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate cooling systems are used for motor and oil passages, then each component can be cooled independently, but the device complexity and space requirements increase
Solution Approach 1:
The patent combines the motor cooling passage and oil passage cooling into a single integrated cooling system. The low-temperature fluid passage is configured to cool both the motor and the oil passages simultaneously, eliminating the need for separate cooling systems and reducing overall device complexity while maintaining effective cooling of all components
2Reliability
If separate cooling systems are used for motor and oil passages, then each component can be cooled independently, but the housing volume increases
Solution Approach 1:
The patent merges the cooling functions for the motor and oil passages into a single low-temperature fluid passage system. This integration allows both components to be cooled within the same housing volume without requiring additional space for separate cooling systems, thereby reducing the overall housing volume while maintaining effective cooling
3Temperature
If oil is cooled by heat exchange with low-temperature fluid, then oil temperature is reduced improving lubrication, but the oil passage must be strategically positioned increasing design complexity
Solution Approach 1:
The low-temperature fluid passage is designed to serve multiple functions simultaneously: it cools the motor, cools the oil passages through heat exchange, and is positioned to optimize thermal efficiency. This multi-functional design reduces the need for separate dedicated cooling paths, simplifying the overall passage arrangement while achieving effective oil temperature reduction for improved lubrication
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 configuration effectively cools the motor and oil passages, reduces space requirements, and enhances overall compressor efficiency by utilizing a single cooling system for both the motor and oil, thereby improving performance and compactness.
Implementation Method 1
a low-temperature fluid passage forming unit having a surface forming a low-temperature fluid passage in which a low-temperature fluid flows and provided in the housing so as to cool the motor
Implementation Method 2
an oil passage forming unit having a surface forming an oil passage through which oil supplied into the housing flows. At least a part of the oil passage forming unit is arranged so as to face the low-temperature fluid passage forming unit with an interposed portion interposed therebetween such that the oil is cooled by heat exchange with the low-temperature fluid
Data Source
AI summary
A compressor is provided that comprises; a compression mechanism compressing a fluid; a motor driving the compression mechanism; and a housing that houses the compression mechanism and the motor. The compressor includes a low-temperature fluid passage forming unit having a surface forming a low-temperature fluid passage in which a low-temperature fluid flows and provided in the housing so as to cool the motor, and an oil passage forming unit having a surface forming an oil passage through which oil supplied into the housing flows. At least a part of the oil passage forming unit is arranged so as to face the low-temperature fluid passage forming unit with an interposed portion interposed therebetween such that the oil is cooled by heat exchange with the low-temperature fluid.