CN102332763A - Magnetic circuit structure of motor - Google Patents
Magnetic circuit structure of motor Download PDFInfo
- Publication number
- CN102332763A CN102332763A CN201110224525A CN201110224525A CN102332763A CN 102332763 A CN102332763 A CN 102332763A CN 201110224525 A CN201110224525 A CN 201110224525A CN 201110224525 A CN201110224525 A CN 201110224525A CN 102332763 A CN102332763 A CN 102332763A
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- Prior art keywords
- motor
- magnetic
- permanent magnets
- circuit structure
- magnetic circuit
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a magnetic circuit structure of a motor, which comprises a rotor lamination body and is characterized in that eight magnetic grooves are arranged on the rotor lamination body; and eight permanent magnets are placed in the magnetic grooves so that a rotor module is formed. According to the magnetic circuit structure of the motor disclosed by the invention, because the permanent magnets are placed in an iron core, the surfaces of the permanent magnets are difficult to damage; more permanent magnets can also be placed in the iron core so that the air gap magnetic density is increased and the weight and the volume of the motor are reduced; because a magnetizer and magnetic steel do not have relative motion and no magnetic field change and no iron loss exist in the magnetizer, the working efficiency of the motor is increased, furthermore, the motor has the good starting property and the smooth speed-adjusting property.
Description
Technical field
The present invention relates to a kind of magnetic structure of motor, specifically be used for the rotor core of high efficiency motor.
Background technology
Along with the national economic development; Deficient gradually inevitably the pollution with it of traditional energy more and more is restricted its application; For making motor product can occupy bigger market share; The development efficiency motors reaches the cost that cuts down the consumption of energy and is client's save money, is the effective ways of realizing this goal at present for current low-carbon economy brings the productivity of sustainable development, adaptation client's requirements at the higher level.
Be widely used in the motor in the fields such as industry, agricultural, commerce, building industry and traffic at present, defective such as ubiquity efficient is low, energy consumption is big can not satisfy the requirement of efficient and energy-saving and emission-reduction.
Permanent magnetic material is to have the high magnetic of economizing, and the magnetic material of high-coercive force once magnetizing, just can be outside magnetic circuit stable magnetic field is provided.In calutron, can replace excitation winding, use very extensive.
When carrying out magnetic Circuit Design; With the design of the working point of permanent magnet when the maximum magnetic energy product point; Available minimum permanent magnet obtains needed magnetic field, and traditional permanent magnet mounting means is a surface-mount type, (directly being attached to the surface); This structure permanent magnet directly bears the demagnetizing effect of armature reaction, because permanent magnet is easy on the surface broken.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby a kind of magnetic structure of motor is provided, this kind magnetic structure
AbilityImprove air gap flux density, reduce the weight and volume of motor; No changes of magnetic field does not have iron loss in the magnetic conductor, not only
CanImprove the operating efficiency of motor, and have good starting characteristic and level and smooth governor control characteristics.
According to technical scheme provided by the invention, the magnetic structure of motor comprises the rotor punching body, and characteristic is: said rotor punching body is provided with magnet slot, places permanent magnet in the said magnet slot and forms rotor module.
As further improvement of the present invention, said magnet slot is 8, correspondingly in the said magnet slot is placed with 8 permanent magnets.
Compared with present technology the present invention has the following advantages:
Because permanent magnet is placed inside unshakable in one's determination, permanent magnet is difficult on the surface being broken; Can also place more permanent magnet in inside to improve air gap flux density, reduce the weight and volume of motor; Because magnetic conductor and magnet steel do not have relative motion, no changes of magnetic field does not have iron loss in the magnetic conductor, so not only can improve the operating efficiency of motor, and have good starting characteristic and level and smooth governor control characteristics.
Description of drawings
Fig. 1 is an interior permanent magnets structural front view of the present invention.
Fig. 2 is an interior permanent magnets structure side view of the present invention.
Embodiment
Following the present invention will combine the embodiment in the accompanying drawing to further describe:
As shown in Figure 1, comprise rotor punching body 1, magnet slot 2, permanent magnet 3.
The present invention only need change the diel of rotor punching, on punch press, goes out rotor punching body 1 with the 50WW470 cold-reduced silicon sheet, and rotor punching body 1 is provided with 8 magnet slot 2.Correspondingly in magnet slot be placed with 8 permanent magnets 3, adopt injection moulding, form rotor module.This assembling does not change the reason assembly mode.
Claims (2)
1. the magnetic structure of a motor comprises rotor punching body (1), it is characterized in that: said rotor punching body (1) is provided with magnet slot (2), places permanent magnet (3) in the said magnet slot and forms rotor module.
2. the magnetic structure of motor as claimed in claim 1, it is characterized in that: said magnet slot (2) is 8, correspondingly in said 8 magnet slot is placed with 8 permanent magnets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110224525A CN102332763A (en) | 2011-08-06 | 2011-08-06 | Magnetic circuit structure of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110224525A CN102332763A (en) | 2011-08-06 | 2011-08-06 | Magnetic circuit structure of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102332763A true CN102332763A (en) | 2012-01-25 |
Family
ID=45484421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110224525A Pending CN102332763A (en) | 2011-08-06 | 2011-08-06 | Magnetic circuit structure of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102332763A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0352573A1 (en) * | 1988-07-27 | 1990-01-31 | Siemens Aktiengesellschaft | Synchronous machine rotor lamination |
| CN1081404C (en) * | 1996-04-15 | 2002-03-20 | 日立金属株式会社 | Permanent magnet field type rotating machine |
| CN1266818C (en) * | 2001-08-10 | 2006-07-26 | 雅马哈发动机株式会社 | Motor rotor |
| US20060290222A1 (en) * | 2005-06-28 | 2006-12-28 | Delta Electronics, Inc. | Motor rotor |
| CN101110528A (en) * | 2006-07-20 | 2008-01-23 | 株式会社日立产机系统 | Permanent magnet type electric rotary machine and compressor using the same |
| EP2264859A1 (en) * | 2009-06-18 | 2010-12-22 | Bombardier Transportation GmbH | A track-bound vehicle electric machine and a driving arrangement for a track-bound vehicle |
| CN202153674U (en) * | 2011-08-06 | 2012-02-29 | 无锡市中达电机有限公司 | Magnetic circuit structure for motor |
-
2011
- 2011-08-06 CN CN201110224525A patent/CN102332763A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0352573A1 (en) * | 1988-07-27 | 1990-01-31 | Siemens Aktiengesellschaft | Synchronous machine rotor lamination |
| CN1081404C (en) * | 1996-04-15 | 2002-03-20 | 日立金属株式会社 | Permanent magnet field type rotating machine |
| CN1266818C (en) * | 2001-08-10 | 2006-07-26 | 雅马哈发动机株式会社 | Motor rotor |
| US20060290222A1 (en) * | 2005-06-28 | 2006-12-28 | Delta Electronics, Inc. | Motor rotor |
| CN101110528A (en) * | 2006-07-20 | 2008-01-23 | 株式会社日立产机系统 | Permanent magnet type electric rotary machine and compressor using the same |
| EP2264859A1 (en) * | 2009-06-18 | 2010-12-22 | Bombardier Transportation GmbH | A track-bound vehicle electric machine and a driving arrangement for a track-bound vehicle |
| CN202153674U (en) * | 2011-08-06 | 2012-02-29 | 无锡市中达电机有限公司 | Magnetic circuit structure for motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120125 |