CN106972652B - Permanent magnet - Google Patents

Permanent magnet Download PDF

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Publication number
CN106972652B
CN106972652B CN201710310044.8A CN201710310044A CN106972652B CN 106972652 B CN106972652 B CN 106972652B CN 201710310044 A CN201710310044 A CN 201710310044A CN 106972652 B CN106972652 B CN 106972652B
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CN
China
Prior art keywords
daughter
magnetic
mother
base plate
parent
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Active
Application number
CN201710310044.8A
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Chinese (zh)
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CN106972652A (en
Inventor
张和平
汪雷
孙骏
章强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhu Hailian Machinery Equipment Co Ltd
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Wuhu Hailian Machinery Equipment Co Ltd
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Priority to CN201710310044.8A priority Critical patent/CN106972652B/en
Publication of CN106972652A publication Critical patent/CN106972652A/en
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Publication of CN106972652B publication Critical patent/CN106972652B/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2213/00Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03Machines characterised by numerical values, ranges, mathematical expressions or similar information

Abstract

The invention discloses a permanent magnet, which belongs to the technical field of machinery and comprises a daughter (1), a mother body (2), a connecting part (3), a magnetic daughter part (4), a daughter base plate (5), a mother base plate (6) and a magnetic mother part (7), wherein the daughter (1) is matched with the mother body (2) in specification, the left end of the daughter (1) is provided with the daughter base plate (5), the daughter base plate (5) is connected with the magnetic daughter part (4) into a whole through the connecting part (3), the middle right end of the mother body (2) is provided with the mother base plate (6), and the left end center of the mother base plate (6) is provided with the magnetic mother part (7). The permanent magnet provided by the invention has a simple structure, and when the permanent magnet is used for a motor, the volume of the magnet in the motor is reduced, harmonic waves are reduced, the magnetic flux density is increased, the efficiency of the motor is increased, and the service life is prolonged.

Description

Permanent magnet
Technical Field
The invention relates to the technical field of machinery, in particular to a permanent magnet.
Background
The permanent magnet is an object which can keep the self magnetism for a long time under the condition of no external magnetic field. The permanent magnet can be made of ferromagnetic materials such as iron and nickel, etc., according to the difference that the materials can generally be kept for 10 years. An electrical machine, such as a generator, contains a number of permanent magnets that interact with at least one coil to produce electrical power. Document EP 1076921a1 describes a magnet block with a cross-sectional geometry. The geometry corresponds to the half-cycle arc of a sinusoid. It is very difficult and expensive to manufacture such geometries. Even this approximation does not reduce cogging torque and ripple torque to satisfactory levels.
Disclosure of Invention
The present invention overcomes the above-mentioned disadvantages and provides a permanent magnet.
In order to achieve the purpose, the invention is realized by the following technical scheme: the permanent magnet comprises a daughter, a mother body, a connecting part, a magnetic part, a daughter base plate, a mother base plate and a magnetic mother part, wherein the daughter is matched with the mother body in specification; the connecting part, the magnetic part and the sub-base plate are integrally formed; the female bottom plate and the magnetic female part are integrally formed; the specifications of the sub bottom plate and the mother bottom plate are the same; the specifications of the magnetic sub part and the magnetic mother part are matched.
Preferably, the connecting part is a cylinder.
Preferably, the longitudinal cross section area of the connecting part is 0.7-0.9 times of the longitudinal cross section area of the sub-base plate.
More preferably, the longitudinal cross-sectional area of the connecting portion is 0.8 times the longitudinal cross-sectional area of the sub-base plate.
Preferably, the longitudinal cross-sectional area of the magnet part is 0.9-0.98 times of the longitudinal cross-sectional area of the magnet parent part.
More preferably, the longitudinal cross-sectional area of the magnet part is 0.95 times the longitudinal cross-sectional area of the magnet parent part.
The invention has the beneficial effects that: the structure is simple, when the magnetic flux-increasing motor is used for the motor, the magnet volume is reduced in the motor, the harmonic wave is reduced, the magnetic flux density is increased, the motor efficiency is increased, and the service life is prolonged.
Drawings
FIG. 1 is a schematic view of the structure of a daughter 1 according to the present invention.
FIG. 2 is a schematic structural diagram of the mother body 2 of the present invention.
The reference numerals in the figure mean 1, daughter and 2, mother and 3, connecting part 4, magnetic part 5, child base plate 6, mother base plate 7 and magnetic mother part.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In order to achieve the above object, the present invention is achieved by the following technical means: the permanent magnet comprises a daughter 1, a parent 2, a connecting part 3, a magnetic daughter part 4, a daughter bottom plate 5, a parent bottom plate 6 and a magnetic mother part 7, wherein the daughter 1 is matched with the parent 2 in specification, the daughter bottom plate 5 is arranged at the left end of the daughter 1, the daughter bottom plate 5 is connected with the magnetic daughter part 4 into a whole through the connecting part 3, the parent bottom plate 6 is arranged at the right end of the parent 2, and the magnetic mother part 7 is arranged at the center of the left end of the parent bottom plate 6; the connecting part 3, the magnetic sub-part 4 and the sub-bottom plate 5 are integrally formed; the female bottom plate 6 and the magnetic female part 7 are integrally formed; the specifications of the sub bottom plate 5 and the mother bottom plate 6 are the same; the specifications of the magnetic sub part 4 and the magnetic mother part 7 are matched; the connecting part 3 is a cylinder; the longitudinal cross-sectional area of the connecting part 3 is 0.8 times of the longitudinal cross-sectional area of the sub-base plate 5; the longitudinal cross-sectional area of the magnet portion 4 is 0.95 times the longitudinal cross-sectional area of the magnet parent portion 7.
When in use, the daughter 1 and the parent 2 can be used under the cooperative matching condition. The structure is simple, when the magnetic flux-increasing motor is used for the motor, the magnet volume is reduced in the motor, the harmonic wave is reduced, the magnetic flux density is increased, the motor efficiency is increased, and the service life is prolonged.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (1)

1. A permanent magnet is characterized by comprising a daughter (1), a parent (2), a connecting part (3), a magnetic subsection (4), a daughter base plate (5), a parent base plate (6) and a magnetic parent part (7), wherein the daughter (1) is matched with the parent (2) in specification, the child base plate (5) is arranged at the left end of the daughter (1), the daughter base plate (5) is connected with the magnetic subsection (4) into a whole through the connecting part (3), the parent base plate (6) is arranged at the middle right end of the parent (2), and the magnetic parent part (7) is arranged at the center of the left end of the parent base plate (6); the connecting part (3), the magnetic part (4) and the sub-base plate (5) are integrally formed; the female bottom plate (6) and the magnetic female part (7) are integrally formed; the specifications of the sub bottom plate (5) and the mother bottom plate (6) are the same; the specifications of the magnetic son part (4) and the magnetic mother part (7) are matched; the longitudinal cross section area of the connecting part (3) is 0.7-0.9 times of the longitudinal cross section area of the sub-base plate (5); the longitudinal cross section area of the magnet part (4) is 0.9-0.98 times of that of the magnet mother part (7); the longitudinal cross-sectional area of the connecting part (3) is 0.8 times of the longitudinal cross-sectional area of the sub-base plate (5); the longitudinal cross-sectional area of the magnet part (4) is 0.95 times that of the magnet mother part (7); the connecting part (3) is a cylinder.
CN201710310044.8A 2017-05-05 2017-05-05 Permanent magnet Active CN106972652B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710310044.8A CN106972652B (en) 2017-05-05 2017-05-05 Permanent magnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710310044.8A CN106972652B (en) 2017-05-05 2017-05-05 Permanent magnet

Publications (2)

Publication Number Publication Date
CN106972652A CN106972652A (en) 2017-07-21
CN106972652B true CN106972652B (en) 2020-04-03

Family

ID=59330888

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710310044.8A Active CN106972652B (en) 2017-05-05 2017-05-05 Permanent magnet

Country Status (1)

Country Link
CN (1) CN106972652B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102035350A (en) * 2010-12-20 2011-04-27 惠州市百宏微动技术工业有限公司 Permanent magnet structure for stepping motor
JP2011528890A (en) * 2008-07-22 2011-11-24 マルチブリッド ゲゼルシャフト ミット ベシュレンクテル ハフツング Permanent magnet excitation type synchronous machine
CN102474143A (en) * 2009-08-12 2012-05-23 日立汽车系统株式会社 Dynamo-electric machine for use in vehicles
CN102789870A (en) * 2011-05-18 2012-11-21 卓向东 Magnetic block combination structure of large-volume magnetizer sleeved at outer side of small-volume permanent magnet
CN103093919A (en) * 2011-11-04 2013-05-08 施俊兆 Magnetic assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19710186A1 (en) * 1997-02-28 1998-09-03 Manfred Dipl Ing Stelter Permanent magnet coupling device
FI981022A (en) * 1998-05-08 1999-11-09 Juha Pyrhoenen Permanent magnetic electric machine construction
CN100370558C (en) * 2006-02-16 2008-02-20 北京航空航天大学 Gradual magnet with magnetic field distributed evenly along axial direction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011528890A (en) * 2008-07-22 2011-11-24 マルチブリッド ゲゼルシャフト ミット ベシュレンクテル ハフツング Permanent magnet excitation type synchronous machine
CN102474143A (en) * 2009-08-12 2012-05-23 日立汽车系统株式会社 Dynamo-electric machine for use in vehicles
CN102035350A (en) * 2010-12-20 2011-04-27 惠州市百宏微动技术工业有限公司 Permanent magnet structure for stepping motor
CN102789870A (en) * 2011-05-18 2012-11-21 卓向东 Magnetic block combination structure of large-volume magnetizer sleeved at outer side of small-volume permanent magnet
CN103093919A (en) * 2011-11-04 2013-05-08 施俊兆 Magnetic assembly

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