CN102064617B - Composite magnetic steel - Google Patents
Composite magnetic steel Download PDFInfo
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- CN102064617B CN102064617B CN201110009401XA CN201110009401A CN102064617B CN 102064617 B CN102064617 B CN 102064617B CN 201110009401X A CN201110009401X A CN 201110009401XA CN 201110009401 A CN201110009401 A CN 201110009401A CN 102064617 B CN102064617 B CN 102064617B
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Abstract
The invention discloses a composite magnetic steel which is simple in installation and protection, low in eddy current loss and more excellent in magnetic performance. The composite magnetic steel comprises a magnetic steel body formed by connecting a NdFeB magnetic steel with a steel plate layer arranged on a surface of the NdFeB magnetic steel; and an imine thin film layer is formed between the steel plate and a surface of the NdFeB magnetic steel in a magnetizing direction.
Description
Technical field:
The present invention relates to a kind of motor, relate in particular to a kind of compound magnet steel that is used for motor.
Background technology:
Neodymium iron boron owing to its continuous improvement in recent years have more excellent magnetism can, its stronger magnetic field intensity, higher coercive force and high temperature resistant and be widely used on the magneto especially.But itself also there is certain defective as a kind of permanent magnetic material, mainly shows the following aspects: the one, positive temperature coefficient is with its magnetic property decline of rising of temperature; The 2nd, more crisp, damage easily when receiving big vibration, this uses performance on high-speed electric expreess locomotive particularly evident; The 3rd, getting rusty easily causes loss of excitation, carries out zinc-plated to Nd-Fe-B permanent magnet usually or chromium plating is handled for this reason, but as far as interior permanent magnets, damage permanent magnet surfaces coating and permanent magnet is got rusty easily when inserting rotor core; The 4th, the impact of big electric current causes the permanent magnet loss of excitation easily, thereby,, permanent magnet is necessary to handle targetedly when inserting magnet steel.
Summary of the invention:
The objective of the invention is the deficiency to the prior art existence, a kind of compound magnet steel is provided, it is simple that this compound magnet steel is installed protection, can play good protective action to magnet steel.
Technical scheme of the present invention comprises the magnet steel body, and said magnet steel body comprises that a magnet steel and a metal material layer of being located at said magnet steel surface connect and compose.
Be provided with a resilient coating between said magnet steel surface and the metal material layer.
Said metal material layer is connected on the surface of magnetizing direction of said magnet steel; Said magnet steel, resilient coating and metal material layer are pasted each other successively through glue and are connected.
Said metal material layer comprises that steel plate constitutes, and said resilient coating comprises that insulating material constitutes; Said magnet steel is a Nd-Fe-B magnet steel.
The thickness of said steel plate is 0.1-1mm; Said insulating material comprises heatproof and/or rubber-like insulating material.
Said resilient coating comprises that the imines film constitutes.
The thickness of said imines film is 0.02-0.5mm.
The protection question that compound magnet steel of the present invention can solve built-in magnet steel when installing makes the installation of magnet steel become more simple; Simultaneously cushioned motor and be applied to the effect that replaces power on the magnet steel in starting and frequent rotating because of being provided with a thin layer; Make magnet steel obtain better protect; Improve the anti-vibration ability of magnet steel, and improve insulation property, when the magnet steel segmentation, can reduce the surface eddy loss between magnet steel and the magnet steel; And can avoid through the steel plate of being located at magnet steel surface that caused eddy current loss plays the certain protection effect to the adverse effect that magnet steel produces to magnet steel under the strong magnetic field action.
Description of drawings
Figure is a compound magnet steel structural representation of the present invention.
Embodiment
Existing through embodiment and combine accompanying drawing that the present invention is described further.As shown in the figure, the magnet steel body 1 of compound magnet steel is connected and composed as the imines film 3 of resilient coating and one deck steel plate 4 as metal material layer by Nd-Fe-B magnet steel 2, one deck successively; Imines film 3 is pasted respectively through glue from its relative both side surface on the side surface of surperficial 2a and steel plate 4 of the magnetizing direction that is connected in Nd-Fe-B magnet steel 2; The size of imines film 3 and steel plate 4 is corresponding with the size and the shape on the surface of the magnetizing direction of Nd-Fe-B magnet steel 2 with shape; The thickness of imines film 3 is 0.05mm, and steel-sheet thickness is 0.35mm.
Resilient coating of the present invention can use heatproof to constitute greater than the certain flexible insulating material of 100 ℃ have greater than 100 ℃ insulating material or heatproof.
Claims (4)
1. compound magnet steel; Comprise the magnet steel body; Said magnet steel body comprises that a magnet steel and a metal material layer of being located at said magnet steel surface connect and compose, and is provided with a resilient coating between said magnet steel surface and the metal material layer, and said metal material layer is connected on the surface of magnetizing direction of said magnet steel; It is characterized in that said magnet steel, resilient coating and metal material layer are through glue stickup connection each other successively; Said metal material layer is made up of steel plate, and said resilient coating is made up of insulating material, and said magnet steel is a Nd-Fe-B magnet steel.
2. according to the said compound magnet steel of claim 1, the thickness that it is characterized in that said steel plate is 0.1-1mm; Said insulating material comprises heatproof and/or rubber-like insulating material.
3. according to claim 1 or 2 said compound magnet steel, it is characterized in that said insulating material is made up of the imines film.
4. according to the said compound magnet steel of claim 3, the thickness that it is characterized in that said imines film is 0.02-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110009401XA CN102064617B (en) | 2011-01-17 | 2011-01-17 | Composite magnetic steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110009401XA CN102064617B (en) | 2011-01-17 | 2011-01-17 | Composite magnetic steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102064617A CN102064617A (en) | 2011-05-18 |
| CN102064617B true CN102064617B (en) | 2012-08-08 |
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ID=43999776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110009401XA Active CN102064617B (en) | 2011-01-17 | 2011-01-17 | Composite magnetic steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102064617B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441837A (en) * | 2014-12-04 | 2015-03-25 | 常熟市佳泰金属材料有限公司 | Flange forging piece without easy conduction for ship |
| CN108673713A (en) * | 2018-05-18 | 2018-10-19 | 海安南京大学高新技术研究院 | Building template magnetic fastening device |
| CN109994309B (en) * | 2019-04-10 | 2021-05-07 | 包头天和磁材科技股份有限公司 | Bonding method of neodymium iron boron magnet assembly |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2508358Y (en) * | 2001-12-24 | 2002-08-28 | 成都希望电子研究所 | Rare-earth permanent magnet |
| CN101403093A (en) * | 2008-09-10 | 2009-04-08 | 兰州大成自动化工程有限公司 | Method of manufacturing vacuum composite film coating on surface of neodymium iron boron magnet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1088243A (en) * | 1996-09-11 | 1998-04-07 | Kawasaki Steel Corp | Production of grain oriented silicon steel sheet excellent in forsterite glass film characteristic |
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2011
- 2011-01-17 CN CN201110009401XA patent/CN102064617B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2508358Y (en) * | 2001-12-24 | 2002-08-28 | 成都希望电子研究所 | Rare-earth permanent magnet |
| CN101403093A (en) * | 2008-09-10 | 2009-04-08 | 兰州大成自动化工程有限公司 | Method of manufacturing vacuum composite film coating on surface of neodymium iron boron magnet |
Non-Patent Citations (1)
| Title |
|---|
| JP平10-088243A 1998.04.07 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102064617A (en) | 2011-05-18 |
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Effective date of registration: 20161230 Address after: 336000 Ring Road in Jiangxi city of Yichun province Yuanzhou District No. 581 Patentee after: Jiangxi Special Motor Co., Ltd. Address before: 336000 Dongfeng Street, Jiangxi, Yichun, No. 10 Patentee before: Jiangxi Special Electric Motor Co., Ltd. |