Wrapped PM Magnetic Pole Structure for Electric Machinery
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Solution Overview
Problem
Conventional electric machinery with permanent magnet (PM) magnetic poles experiences weakened magnetic power due to inverse excitation during operation, as the magnetic field is not effectively maintained.
Innovation Solution
A PM magnetic pole is wrapped by an individual magnetic pole and a magnetic circuit, ensuring that the magnetic poles of different polarities are either identical or opposite, forming a closed magnetic circuit to prevent magnetic power weakening during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a conventional PM magnetic pole structure is used, then the structure is simple and does not require magnetic field exciting current, but the magnetic power is weakened by inverse excitation during operation
Solution Approach 1:
The patent wraps the permanent magnet magnetic pole with a magnetic pole structure and magnetic circuit, creating a nested configuration where the PM is enclosed within the magnetic pole and magnetic circuit layers. This nested structure prevents inverse excitation from weakening the magnetic power while maintaining operational reliability.
Solution Approach 2:
The magnetic pole and magnetic circuit act as intermediary structures that mediate between the permanent magnet and the external magnetic field. These intermediaries protect the PM from inverse excitation effects while allowing the magnetic field to function properly during operation.
2Reliability
If the PM magnetic pole is wrapped by magnetic pole and magnetic circuit, then the magnetic field strength is enhanced and inverse excitation is prevented, but the device complexity increases
Solution Approach 1:
The patent implements a nested structure where the permanent magnet is wrapped by the magnetic pole and magnetic circuit in concentric layers. This nesting approach enhances magnetic field strength and prevents inverse excitation while organizing the complexity in a systematic manner.
Solution Approach 2:
The magnetic pole and magnetic circuit are combined into an integrated wrapped structure around the permanent magnet. This merging of components creates a unified magnetic field management system that enhances reliability while consolidating the added complexity into a single functional assembly.
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 design enhances the magnetic field strength by maintaining the magnetic line of force, effectively preventing inverse excitation and improving the operational efficiency of electric machinery.
Implementation Method 1
a PM magnetic pole wrapped between the individual magnetic pole and the magnetic circuit
Implementation Method 2
the magnetic poles of different polarities are either identical or opposite, forming a closed magnetic circuit to prevent magnetic power weakening
Data Source
AI summary
An electric machinery provided with a PM magnetic pole wrapped by a permeable polar face and a magnetic circuit from an individual magnetic pole provides an innovative design of having disposed the PM magnetic pole wrapped between the permeable polar face and the magnetic circuit from the individual magnetic pole to prevent PM magnetic pole from falling off and avoid PM magnetic pole magnetic force from being weakened by inverse excitation during the operation.