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Magnet differential type electric permanent magnet device

A technology of permanent magnet force and magnetic difference, applied in circuits, electromagnets, magnetic objects, etc., can solve the problems of large magnetic resistance, difficult to control demagnetization, and long yoke

Inactive Publication Date: 2012-05-02
孙祖桐
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the demagnetization of this structure is difficult to control, in recent years, according to the principle of magnetic difference, there have been electro-permanent magnetic devices that use ferrite or NdFeB as the main magnetic pole and AlNiCo as the reversible magnetic pole, but the yoke is very long and the magnetic resistance is very large , which seriously affects the magnetic attraction

Method used

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  • Magnet differential type electric permanent magnet device
  • Magnet differential type electric permanent magnet device
  • Magnet differential type electric permanent magnet device

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Embodiment Construction

[0013] In the embodiment, the base 1 and the upper cover 2 are made of stainless steel, and may also be made of aluminum or copper. NdFeB magnets 3 use sintered NdFeB magnets, or bonded NdFeB magnets. The shape of the NdFeB magnet 3 is horseshoe-shaped, and may also be strip-shaped or arc-shaped in the middle of the strip. The AlNiCo magnet 4 adopts a cast AlNiCo magnet, or a sintered AlNiCo magnet. The groove 5, the coil 6, the A pole shoe 7 and the B pole shoe 8 of the AlNiCo magnet pole are self-processed.

[0014] The model using sintered NdFeB magnets is N38, or N35 or N40 or N42 or N45 or N48 or N50 or N52 or N35M or N38M or N40M or N42M or N45M or N48M or N50M or N33H or N35H or N38H or N40H or N40SH or N42H or N42SH or N45H or N48H or N30S or N33S or N35S or N38S or N40S or N42S or N45S or N28U or N30U or N33U or N35U or N38U or N40U or N42U or N30EH or N33EH or N35EH or N35UH or N38UH. Bonded NdFeB magnets can also be used, the model is GSF-01 or GSF-04 or GSF-05 o...

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Abstract

The invention relates to a magnet force device, particularly to a magnet differential type electric permanent magnet device. The device is free from yoke, the magnetic resistance is very small and the magnetic attraction force is very big. Compared with the prior art, the yoke-free structure can generate the remarkable beneficial technical effect, thus the magnet in the same size can relatively generate bigger magnetic attraction force; and the self-gravity is little and the price is low. The device can be applied to the industries such as an electromagnet, a relay, a contactor and a hoisting magnet. The device makes the magnetism of the magnetic pole of an aluminum nickel cobalt magnet 4 change to keep the step of that of the magnetic pole of adjacent neodymium iron boron magnet 3 by charging in positive and reverse directions according to the requirement, thus the pole shoes 7, 8 have the magnetic attraction force; or the magnetism is different, thus the pole shoes 7, 8 are free from the magnetic attraction force. At the moment of adjusting the polarity of the aluminum nickel cobalt magnet 4, the iron magnet material is attracted or the iron magnet material is not attracted with low power consumption, more than 90% of the power can be saved based on the primary measurement and calculation.

Description

technical field [0001] The invention relates to a magnetic device, in particular to an electropermanent magnetic device. Background technique [0002] At present, the known magnetic devices are divided into three types: electromagnetic type, permanent magnet type, and electro-permanent magnetic type. The traditional electro-permanent magnetic device adopts AlNiCo magnet, which is magnetized by DC, and demagnetized by reverse DC when demagnetized. Because the demagnetization of this structure is difficult to control, in recent years, according to the principle of magnetic difference, there have been electro-permanent magnetic devices that use ferrite or NdFeB as the main magnetic pole and AlNiCo as the reversible magnetic pole, but the yoke is very long and the magnetic resistance is very large , seriously affecting the magnetic attraction. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a magnetic difference ty...

Claims

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Application Information

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IPC IPC(8): H01F13/00H01F7/06
Inventor 孙祖桐
Owner 孙祖桐
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