Stator Tooth Insulator Assembly With Deformable Slot Grip
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Solution Overview
Problem
The inclusion of insulation in stator assemblies of rotating electrical machines is challenging during the manufacturing process.
Innovation Solution
A tooth insulator design featuring a body with elongated legs and a deformable slot allows temporary displacement for easy installation over stator teeth, then grips securely once installed, facilitating the assembly process and ensuring electrical insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional insulation methods are used in stator assemblies, then electrical insulation is provided, but the manufacturing process becomes challenging and complex
Solution Approach 1:
The tooth insulator employs a flexible body with elongated legs that can deform during installation. The legs are designed to be elastic and deformable, allowing them to flex outward during assembly and then return to their original position to grip the stator tooth securely. This flexibility enables easy installation while maintaining reliable electrical insulation between the stator core and windings.
Solution Approach 2:
The insulator design incorporates dynamic elements where the elongated legs can move relative to each other through a deformable slot. During installation, external force causes the legs to move outward, and when the force is removed, elastic recovery returns the legs to their gripping position. This dynamic behavior simplifies the manufacturing process while ensuring reliable insulation.
2Stability of the object's composition
If rigid insulation structures are used, then structural stability is maintained, but installation over stator teeth becomes difficult
Solution Approach 1:
The insulator transitions from a rigid structure to a dynamic one where the elongated legs can deform during installation. The body remains structurally stable while the legs are designed to flex outward when force is applied and then return to their original position, enabling easy installation over stator teeth while maintaining structural integrity during operation.
Solution Approach 2:
The insulator's physical parameters change during installation - the elongated legs deform from their original position to accommodate the stator tooth, then return to their stable configuration. This parameter change allows the insulator to adapt to the tooth geometry during installation while maintaining structural stability for its insulation function.
3Ease of operation
If deformable slots are introduced in the insulator, then ease of installation is improved, but device complexity increases
Solution Approach 1:
The insulator body is segmented into distinct functional parts: a main body and multiple elongated legs connected through deformable slots. This segmentation allows each part to perform its specific function - the body provides structural stability while the legs provide gripping capability, and the deformable slots enable movement between installation and operational states without significantly increasing overall complexity.
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 tooth insulator effectively insulates the stator core from stator windings while simplifying the assembly process by allowing easy fitting and secure attachment, enhancing manufacturing efficiency.
Implementation Method 1
a deformable slot positioned between the first elongated leg and the second elongated leg, wherein the deformable slot permits temporary displacement of the first elongated leg relative to the second elongated leg
Implementation Method 2
force exerted by the first elongated leg and the second elongated leg on the outer surface of the tooth when in situ
Data Source
AI summary
A tooth insulator for use in a rotating electrical machine including a body, shaped to conform to an outer surface of a tooth; a first elongated leg, extending away from the body; a second elongated leg, extending away from the body; a deformable slot positioned between the first elongated leg and the second elongated leg, wherein the deformable slot permits temporary displacement of the first elongated leg relative to the second elongated leg to fit over an outer surface of the tooth and force exerted by the first elongated leg and the second elongated leg on the outer surface of the tooth when in situ.