CN102436900A - Magnet differential type electric permanent magnet device - Google Patents

Magnet differential type electric permanent magnet device Download PDF

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Publication number
CN102436900A
CN102436900A CN2011103941056A CN201110394105A CN102436900A CN 102436900 A CN102436900 A CN 102436900A CN 2011103941056 A CN2011103941056 A CN 2011103941056A CN 201110394105 A CN201110394105 A CN 201110394105A CN 102436900 A CN102436900 A CN 102436900A
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China
Prior art keywords
magnet
magnetic
ndfeb
pole
magnetic pole
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Pending
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CN2011103941056A
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Chinese (zh)
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孙祖桐
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孙祖桐
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Priority to CN2011103941056A priority Critical patent/CN102436900A/en
Publication of CN102436900A publication Critical patent/CN102436900A/en
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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

A kind of magnetic variation type electricity permanent magnetism power apparatus
Technical field
The present invention relates to a kind of magnetic means, especially relate to electric permanent magnetism power apparatus.
Background technology
At present, known magnetic means is divided into: three kinds of electromagnetic types, magneto, electric magneto.Traditional electric permanent magnetism power apparatus adopts alnico magnet, uses dc magnetization, passes to reverse direct current demagnetization during demagnetization.Because of this structure demagnetization is difficult to control, occur in recent years pressing the magnetic variation type principle, make main pole with iron oxysome or neodymium iron boron, aluminium nickel cobalt is made the electric permanent magnetism power apparatus of reversible magnetic pole, but yoke is very long, and magnetic resistance is very big, seriously influences magnetic attraction.
Summary of the invention
The technical problem that the present invention will solve is, a kind of no yoke is provided, and magnetic resistance is very little, the very large magnetic variation type electricity of magnetic attraction permanent magnetism power apparatus.This device can replace the magnetic means of widely used electromagnetic type, magneto, electric magneto, can be applied in industries such as electromagnet, relay, contactor, lifting magnet.
For realizing above-mentioned purpose, technical scheme that the present invention adopts is: mainly be made up of base, loam cake, ndfeb magnet, alnico magnet, coil, pole shoe.Ndfeb magnet is in the inboard of shape of a hoof aluminium-nickel-cobalt magnetic magnetic pole iron, and the magnetic pole of the magnetic pole of ndfeb magnet and shape of a hoof alnico magnet is connected with the A pole shoe, and another magnetic pole of ndfeb magnet and another magnetic pole of shape of a hoof alnico magnet are connected with the B pole shoe; Perhaps two magnetic poles of ndfeb magnet are set in respectively in the groove of two magnetic pole inboard, upright directions of shape of a hoof alnico magnet; The magnetic pole of the magnetic pole of ndfeb magnet and shape of a hoof alnico magnet is connected with the A pole shoe, and another magnetic pole of ndfeb magnet and another magnetic pole of shape of a hoof alnico magnet are connected with the B pole shoe; A pole shoe and B pole shoe are connected with base respectively, pass base; Ndfeb magnet is strip or the strip middle part arc or the shape of a hoof.
The present technique characteristic is with respect to prior art, and is non-obvious.Compared with prior art can produce tangible beneficial technical effects.The shortcoming that yoke is arranged is that magnetic resistance is big, onesize magnet, and the magnetic attraction that produces relatively is little.The structure magnetic resistance of no yoke is little, and magnetic attraction is improved, and makes onesize magnet, produces bigger magnetic attraction relatively, produces better technique effect, more help saving material (neodymium iron boron and aluminium nickel cobalt are very expensive), energy savings.
Owing to adopted such scheme, the yoke key element is omitted, and with onesize magnet, produces bigger magnetic attraction relatively, has practiced thrift raw material, has practiced thrift the energy.Therefore the present invention has outstanding substantive distinguishing features and obvious improvement.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further described.
Fig. 1 is that the master that magnetic attraction is arranged of the embodiment of the invention looks sketch map.
Fig. 2 is that the master of the no magnetic attraction of the embodiment of the invention looks sketch map.
Fig. 3 is that the embodiment of the invention is fluted has the master of magnetic attraction to look sketch map.
Fig. 4 is that the master of the fluted no magnetic attraction of the embodiment of the invention looks sketch map.
Among Fig. 1, Fig. 2, Fig. 3, Fig. 4; The groove 5 of base 1, loam cake 2, ndfeb magnet 3, alnico magnet 4, aluminium-nickel-cobalt magnetic magnetic pole iron, coil 6, A pole shoe 7, B pole shoe 8.
Embodiment
Among the embodiment, base 1, loam cake 2 adopt stainless steel, also can adopt aluminium or copper.Ndfeb magnet 3 adopts sintered NdFeB magnet, also can adopt Agglutinate neodymium-iron-boron magnet.The shape of ndfeb magnet 3 is shapes of a hoof, also can be strip or strip middle part arc.Alnico magnet 4 adopts the casting alnico magnet, also can adopt the sintering alnico magnet.The groove 5 of aluminium-nickel-cobalt magnetic magnetic pole iron, coil 6, A pole shoe 7, B pole shoe 8 are from processing.
Adopting the model of sintered NdFeB magnet is N38, also can adopt 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.Also can adopt Agglutinate neodymium-iron-boron magnet, model is GSF-01 or GSF-04 or GSF-05 or GSF-06 or GBN-07 or GBN-08 or GBNS-08 or GBN-8H or GBN-09 or GBN-10 or GBN-11 or GBN-12.
Adopting the model of casting alnico magnet is LNG52, also can adopt LN9 or LN10 or LNG12 or LNG13 or LNG16 or LNG18 or LN634 or LNG37 or LNG40 or LNG44 or LNG56 or LNG60 or LNGT18 or LNGT28 or LNGT30 or LNGT32 or LNGT38 or LNGT44 or LNGT48 or LNGT60 or LNGT72 or LNGT88 or LNGT36J or LNGT52J.Also can adopt the sintering alnico magnet, model is FLN8 or FLNG12 or FLNG18 or FLNG28 or FLN634 or FLNG37 or FLNGT28 or FLNGT31 or FLNGT38 or FLNGT42 or FLNGT33J.
In Fig. 1, the magnetic of the magnetic of alnico magnet 4 magnetic poles and adjacent ndfeb magnet 3 magnetic poles is identical, and magnetic force is jointly through A pole shoe 7; The magnetic of alnico magnet 4 another magnetic poles is identical with the magnetic of adjacent ndfeb magnet 3 another magnetic poles, and magnetic force is jointly through B pole shoe 8; Therefore magnetic force attracts ferromagnetic material through A pole shoe 7, B pole shoe 8, and magnetic force forms the loop through ferromagnetic material.
In Fig. 2, coil 6 energisings, the magnetic force of generation less than the coercive force of neodymium iron boron, changes the magnetic of alnico magnet 4 magnetic poles greater than the coercive force of aluminium nickel cobalt.The magnetic of alnico magnet 4 magnetic poles after the change and the magnetic of adjacent ndfeb magnet 3 magnetic poles are inequality, and the magnetic force of the magnetic force of alnico magnet 4 magnetic poles and adjacent ndfeb magnet 3 magnetic poles forms the loop through 7 conductings of A pole shoe; The magnetic of alnico magnet 4 another magnetic poles after the change and the magnetic of adjacent ndfeb magnet 3 another magnetic poles are also inequality, and the magnetic force of the magnetic force of alnico magnet 4 another magnetic poles and adjacent ndfeb magnet 3 another magnetic poles forms the loop through 8 conductings of B pole shoe; Therefore A pole shoe 7, B pole shoe 8 external no magnetic force do not attract ferromagnetic material.
Coil 6 is energising once more oppositely, and the magnetic of alnico magnet 4 magnetic poles is changed once more, and situation is identical with Fig. 1.The magnetic of the magnetic of alnico magnet 4 magnetic poles and adjacent ndfeb magnet 3 magnetic poles is identical, and magnetic force is jointly through A pole shoe 7; The magnetic of alnico magnet 4 another magnetic poles is identical with the magnetic of adjacent ndfeb magnet 3 another magnetic poles, and magnetic force is jointly through B pole shoe 8; Therefore magnetic force attracts ferromagnetic material through A pole shoe 7, B pole shoe 8, and magnetic force forms the loop through ferromagnetic material.So circulation, reaching is power saving, the purpose of working again.
In Fig. 3, being that alnico magnet 4 magnetic poles are fluted has a magnetic attraction situation, and principle is identical with Fig. 1.
In Fig. 4, be the fluted no magnetic attraction situations of alnico magnet 4 magnetic poles, principle is identical with Fig. 2.
The present invention as required through forward and reverse energising, changes the magnetic of aluminium-nickel-cobalt magnetic magnetic pole iron through on probation very reliable, matches with the magnetic of adjacent ndfeb magnet magnetic pole, and magnetic attraction can be arranged, and does not perhaps have magnetic attraction.In the moment of regulating alnico magnet polarity, only consume electric energy seldom, just can attract ferromagnetic material or not attract ferromagnetic material, power savings is very obvious, calculate economize on electricity through thick pacing and reach more than 90%, and it is little to conduct oneself with dignity, and relative price is low.
Owing to adopted such scheme, with onesize magnet, produce bigger magnetic attraction relatively, practiced thrift raw material (neodymium iron boron and aluminium nickel cobalt are very expensive), practiced thrift the energy.
The present technique characteristic is with respect to prior art, and is non-obvious.Compared with prior art can produce tangible beneficial technical effects.This structure magnetic resistance of saving yoke is little, and magnetic attraction is improved, and makes onesize magnet, produces bigger magnetic attraction relatively, produces better technique effect, more helps saving material energy savings.Therefore the present invention has outstanding substantive distinguishing features and obvious improvement.

Claims (4)

1. magnetic variation type electricity permanent magnetism power apparatus; Mainly form by base, loam cake, ndfeb magnet, alnico magnet, coil, pole shoe; It is characterized in that: ndfeb magnet (3) is in the inboard of shape of a hoof alnico magnet (4) magnetic pole; The magnetic pole of ndfeb magnet (3) and the magnetic pole of shape of a hoof alnico magnet are connected with A pole shoe (7), and another magnetic pole of ndfeb magnet and another magnetic pole of shape of a hoof alnico magnet are connected with B pole shoe (8); Perhaps two magnetic poles of ndfeb magnet (3) are set in respectively in the groove (5) of two magnetic pole inboard, upright directions of shape of a hoof alnico magnet (4); The magnetic pole of ndfeb magnet (3) and the magnetic pole of shape of a hoof alnico magnet are connected with A pole shoe (7), and another magnetic pole of ndfeb magnet and another magnetic pole of shape of a hoof alnico magnet are connected with B pole shoe (8); A pole shoe (7) and B pole shoe (8) are connected with base (1) respectively, pass base (1).
2. ask according to right and require 1 described electric permanent magnetism power apparatus, it is characterized in that: ndfeb magnet (3) is strip or the strip middle part arc or the shape of a hoof.
3 as claimed in claim 1 or 2, wherein the request of the permanent magnet electric power apparatus characterized in that: NdFeB magnet (3) is a sintered or bonded NdFeB magnets NdFeB; Sintered NdFeB magnet model is N35 or N38 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; model is bonded NdFeB magnets or GSF GSF-01 -04 or GSF-05 or GSF-06 or GBN-07 or GBN-08 or GBNS-08 or GBN-8H or GBN-09 or GBN-10 or GBN-11 or GBN-12.
4. ask according to right and require 1 or 2 described electric permanent magnetism power apparatus, it is characterized in that: alnico magnet (4) is the sintering alnico magnet or casts alnico magnet; The model of sintering alnico magnet is FLN8 or FLNG12 or FLNG18 or FLNG28 or FLNG34 or FLNG37 or FLNGT28 or FLNGT31 or FLNGT38 or FLNGT42 or FLNGT33J; The model of casting alnico magnet is LN9 or LN10 or LNG12 or LNG13 or LNG16 or LNG18 or LNG34 or LNG37 or LNG40 or LNG44 or LNG52 or LNG56 or LNG60 or LNGT18 or LNGT28 or LNGT30 or LNGT32 or LNGT38 or LNGT44 or LNGT48 or LNGT60 or LNGT72 or LNGT88 or LNGT36J or LNGT52J.
CN2011103941056A 2011-12-02 2011-12-02 Magnet differential type electric permanent magnet device Pending CN102436900A (en)

Priority Applications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150177116A1 (en) * 2013-12-19 2015-06-25 Pratt & Whitney Canada Corp. Magnetic chip detector / collector
WO2018014663A1 (en) * 2016-07-22 2018-01-25 东北大学 Vertical electromagnetic braking device for controlling flow of molten steel in continuous casting crystallizer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150177116A1 (en) * 2013-12-19 2015-06-25 Pratt & Whitney Canada Corp. Magnetic chip detector / collector
US9874510B2 (en) * 2013-12-19 2018-01-23 Pratt & Whitney Canada Corp. Magnetic chip detector/collector
WO2018014663A1 (en) * 2016-07-22 2018-01-25 东北大学 Vertical electromagnetic braking device for controlling flow of molten steel in continuous casting crystallizer

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Application publication date: 20120502