Co-Rotating Scroll Compressor Cooling for Inverter Condensation Control
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Solution Overview
Problem
Conventional scroll compressors experience temperature variations and condensation issues in the partition wall due to uneven cooling of the inverter circuit, leading to potential short circuits.
Innovation Solution
A co-rotating scroll compressor design where the driving and driven scrolls form a compression chamber, with a suction port facing the partition wall, allowing fluid to be suctioned into the chamber while being stirred, uniformly cooling the partition wall and reducing temperature differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the partition wall is cooled by refrigerant gas suctioned from the inlet communication port, then the inverter circuit is cooled through the partition wall, but temperature variation increases from place to place in the partition wall
Solution Approach 1:
The invention introduces a suction port in the driving end plate that faces the partition wall, creating a localized cooling path. Refrigerant gas is directly suctioned from the suction chamber through this facing suction port, providing concentrated cooling to the partition wall area. This local quality approach ensures uniform temperature distribution across the partition wall by targeting the specific area that requires cooling, rather than relying on general ambient cooling throughout the housing.
2Temperature
If the partition wall is cooled by refrigerant gas from the inlet communication port, then cooling of the inverter circuit is achieved, but condensation water forms in the inverter chamber due to large temperature difference
Solution Approach 1:
The suction port is positioned to face the partition wall, creating a localized cooling effect precisely where needed. This concentrated cooling approach maintains a more uniform temperature distribution across the partition wall, preventing excessive temperature differences between different areas. By avoiding large temperature gradients, the invention prevents condensation water formation in the inverter chamber while still achieving effective cooling of the inverter circuit.
3Temperature
If refrigerant gas is suctioned into the suction chamber, then the inverter circuit is cooled through the partition wall, but temperature variation increases making it difficult to suitably cool the inverter circuit
Solution Approach 1:
The suction port acts as an intermediary element between the suction chamber and the partition wall. By positioning the suction port to face the partition wall, it creates a direct cooling pathway that mediates the heat transfer process. The suction port enables refrigerant gas to directly interact with the partition wall surface, improving cooling efficiency and temperature uniformity without relying on indirect cooling paths through the housing structure.
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 design effectively cools the inverter circuit, preventing condensation and short circuits by maintaining uniform temperature across the partition wall, ensuring efficient operation.
Implementation Method 1
the driving scroll and the driven scroll form a compression chamber by the driving spiral body and the driven spiral body facing each other, and reducing a volume of the compression chamber
Implementation Method 2
a suction port that allows the compression chamber to suction the refrigerant gas from the suction chamber is formed in the driving end plate or the driven end plate
Implementation Method 3
the partition wall is cooled by the refrigerant gas that is suctioned into the suction chamber, the inverter circuit in the inverter chamber is cooled through this partition wall
Data Source
AI summary
Provided is a co-rotating scroll compressor capable of suitably cooling an inverter circuit and preventing short circuits in the inverter circuit caused by condensation water. In the compressor of the present disclosure, a driving scroll and a driven scroll are disposed in a suction chamber. The driving scroll is driven rotatably around a drive shaft center axis, and the driven scroll follows rotatably around a driven shaft center axis. In an inverter chamber, an inverter circuit is accommodated. In a driving end plate of the driving scroll, a suction port is formed. The suction port allows a compression chamber to suction refrigerant gas from the suction chamber. The suction port faces a partition wall.