Stator Positioning via Electromagnetic Rotation
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Solution Overview
Problem
The existing methods for mounting attachment parts to electric machines are cumbersome, inefficient, and cost-intensive, particularly due to the need for separate turntables to position the machine for installation, which complicates the alignment of components like cooling systems and wiring.
Innovation Solution
A method where the rotor is non-rotatably supported, allowing the stator to be detachably secured and rotated using a clamping device to reach desired installation positions, enabling attachment parts to be mounted from above by adjusting the current application time, eliminating the need for external turning devices and utilizing internal sensors for position detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate turntables are used to position the electric machine for installation, then the machine can be positioned for installation, but the installation process becomes cumbersome, inefficient, and cost-intensive
Solution Approach 1:
The patent merges the positioning function into the electric machine itself by enabling the stator to rotate relative to the rotor through electromagnetic forces. The electric machine's own motor function is utilized to perform the positioning task that previously required separate turntables, thereby eliminating the need for external positioning equipment and simplifying the overall system.
Solution Approach 2:
The electric machine performs its own positioning operation by using its motor function to rotate the stator relative to the rotor. This self-service capability eliminates the need for external turntables or positioning devices, reducing equipment complexity and installation costs while maintaining ease of positioning.
2Stability of the object's composition
If the electric machine is fixed in a specific position for installation, then stable mounting is achieved, but the ability to adjust to different installation positions is lost
Solution Approach 1:
The patent implements a dynamic positioning system where the stator can be rotated to different positions relative to the rotor during installation. The clamping device provides dynamic control by allowing the stator to be held at various angular positions, enabling both stability during mounting and adaptability to different installation positions. The system transitions between fixed (clamped) and movable (rotating) states as needed.
Solution Approach 2:
The clamping device is used to preliminarily secure the stator at the desired installation position before final mounting operations. This preliminary positioning allows the installer to set the exact orientation needed, and once positioned, the clamping device maintains stability during the attachment part installation process.
3Manufacturing precision
If the stator is clamped securely for mounting, then precise position control is achieved, but the ability to rotate to different positions is restricted
Solution Approach 1:
The clamping device provides dynamic control over the stator, allowing it to be held firmly at precise positions when needed for mounting operations. The device can be released to allow rotation and repositioning, then re-engaged to secure the stator at the desired position. This dynamic switching between clamped and free states enables both precision positioning and ease of rotation.
Solution Approach 2:
The installation process involves periodic engagement and disengagement of the clamping device. The stator is rotated to the desired position, clamped to secure it, mounting operations are performed, then the clamping is released to allow further rotation if needed. This periodic action between clamping and releasing enables both precise positioning and flexibility.
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 approach simplifies the installation process by allowing any stator position adjustment relative to the rotor, facilitating ergonomic mounting and reducing costs by eliminating the need for separate turntables, while enabling functional testing and precise position control during installation.
Implementation Method 1
operating the electric machine as motor for a time period sufficient for the stator to rotate in relation to the rotor
Data Source
AI summary
In a method of mounting attachment parts to an electric machine, a rotor of the electric machine is non-rotatably supported in a bearing device. A stator of the electric machine is detachably secured in a predefined first installation position by a clamping device, and a first attachment part is mounted to the stator. The clamping device is then released, and the electric machine is operated as motor for a time period sufficient for the stator to rotate in relation to the rotor until reaching a second installation position. The stator is secured by the clamping device in the second installation position, and a second attachment part is mounted to the stator.