Positive displacement machine, compressor, cooling apparatus, and electronic equipment
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Solution Overview
Problem
Existing positive displacement machines, such as hermetic compressors, face challenges in assembly due to backlash caused by component tolerances, making it difficult to appropriately combine driving shafts, driving arms, and arms, which affects their functionality.
Innovation Solution
A positive displacement machine design featuring a housing with a tubular guide part, a slide member, a coupling member, a first rotating member, and a first motor with an adjuster to adjust the position of the first rotor, allowing for improved assemblability by aligning components precisely.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional hermetic compressor design is used with fixed component positions, then manufacturing simplicity is maintained, but backlash occurs due to tolerance accumulation making assembly difficult
Solution Approach 1:
The patent applies the dynamics principle by making the motor position adjustable rather than fixed. The motor can be positioned at multiple discrete locations along the rotation axis direction, allowing the system to adapt to tolerance variations in other components. This dynamic positioning capability eliminates backlash caused by tolerance accumulation while maintaining manufacturing simplicity through standardized adjustment mechanisms.
Solution Approach 2:
The patent implements parameter changes by varying the motor's position parameter along the rotation axis. By providing multiple discrete position options for the motor, the system can optimize the alignment between the motor rotor and the rotating member coupling portion. This parameter adjustment compensates for dimensional tolerances in the coupling member and rotating member, ensuring precise assembly without increasing overall device complexity.
2Ease of operation
If motor position is fixed relative to housing, then device simplicity is maintained, but backlash occurs due to tolerance accumulation among components
Solution Approach 1:
The motor position is made dynamically adjustable along the rotation axis direction, allowing operators to select from multiple discrete positions during assembly. This dynamic adjustment capability significantly improves assembly ease by enabling compensation for tolerance variations without requiring complex precision machining or specialized assembly tools, while simultaneously enhancing component combination reliability.
Solution Approach 2:
The patent implements preliminary action by pre-providing multiple discrete position options for the motor along the rotation axis before the actual assembly process. This preliminary preparation of position variations allows for easy selection and adjustment during assembly, ensuring reliable component combination without requiring complex real-time adjustments or specialized assembly procedures.
Data Source
AI summary
A positive displacement machine includes a housing including a tubular guide part in which a pressure chamber is provided, a slide member including a piston disposed in the guide part, the slide member sliding in a first direction, a coupling member coupled to the slide member and extending in a second direction intersecting the first direction, a first rotating member coupled to a first end portion of the coupling member and configured to rotate centering on a first rotation axis extending in the second direction, and a first motor. The first motor includes a first rotor coupled to the first rotating member and configured to rotate centering on the first rotation axis and an adjuster configured to adjust a position of the first rotor with respect to the housing, the position extending along an imaginary plane perpendicular to the first rotation axis.