Positive displacement machine, compressor, cooling apparatus, and electronic equipment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing positive displacement machines, such as hermetic compressors, face challenges in reducing vibration due to limited flexibility in motor placement and adjustment, which affects the efficiency and operation of these machines.
Innovation Solution
The implementation of a positive displacement machine design featuring two motors with adjustable stators, aligned to rotate in opposite directions, and a single driving circuit to synchronize their operation, allowing for precise adjustment of stator angles to offset vibrations and improve motor efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If two driving motors are rotated in opposite directions to reduce vibration, then vibration is reduced, but attachment flexibility of the driving motors is low and it is difficult to achieve further vibration reduction
Solution Approach 1:
The patent makes the stator position adjustable rather than fixed, allowing dynamic optimization of motor attachment. The stator can be positioned at different angles relative to the rotor to achieve optimal vibration cancellation while maintaining flexible attachment options.
Solution Approach 2:
The patent changes the angular parameter of stator position to optimize vibration reduction. By adjusting the stator angle, the system can fine-tune the vibration cancellation effect while maintaining attachment flexibility.
2Device complexity
If driving motors are attached in fixed positions to simplify structure, then device complexity is reduced, but vibration reduction capability is limited
Solution Approach 1:
The patent introduces adjustability to the stator position, transforming a static structure into a dynamic one that can be optimized for vibration reduction without significantly increasing overall system complexity.
Solution Approach 2:
The patent applies local adjustability only to the stator position rather than the entire motor assembly, achieving vibration reduction capability while maintaining simplicity in other aspects of the 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
This configuration effectively reduces vibration during operation, enhances motor efficiency, and simplifies the machine's configuration by using a single driving circuit, while increasing adjustment flexibility and reducing operational costs.
Implementation Method 1
a first motor including a first rotor coupled to the first rotating member and configured to rotate centering on the first rotation axis and a first stator disposed on an outer side of the first rotor when viewed along the first rotation axis; and a second motor including a second rotor coupled to the second rotating member and configured to rotate centering on the second rotation axis
Implementation Method 2
The first motor includes a first adjusting mechanism configured to adjust an angle of the first stator with respect to the first rotor, the angle being centered on the first rotation axis
Data Source
AI summary
A positive displacement machine includes a housing including a guide part, a slide member including a piston disposed in the guide part, a coupling member coupled to the slide member, a first rotating member coupled to the coupling member and configured to rotate centering on a first rotation axis, a second rotating member coupled to the coupling member and configured to rotate, centering on a second rotation axis, in an opposite direction of a rotating direction of the first rotating member, and a first motor including a first rotor coupled to the first rotating member and a first stator disposed on an outer side of the first rotor, The first motor includes a first adjusting mechanism configured to adjust an angle of the first stator with respect to the first rotor, the angle being centered on the first rotation axis.