CN102593988A - Magnetic steel punching piece of permanent magnet synchronous servo motor rotor - Google Patents
Magnetic steel punching piece of permanent magnet synchronous servo motor rotor Download PDFInfo
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- CN102593988A CN102593988A CN2012100777196A CN201210077719A CN102593988A CN 102593988 A CN102593988 A CN 102593988A CN 2012100777196 A CN2012100777196 A CN 2012100777196A CN 201210077719 A CN201210077719 A CN 201210077719A CN 102593988 A CN102593988 A CN 102593988A
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Abstract
The invention discloses a magnetic steel punching piece of a permanent magnet synchronous servo motor rotor, which is of a round-piece-shaped structure. Rotor iron core holes (4) and magnetic steel slots (2) are arranged on the piece body (1). The magnetic steel punching piece is characterized in that the number of the magnetic steel slots (2) is 8, and the 8 magnetic steel slots are evenly distributed with the circle center of the slice body (1) as the center. Simultaneously, 8 weight reducing slot-shaped holes (3) are further arranged on the slice body (1) and are evenly distributed with the circle center of the slice body (1) as the center. The slot grade ratio of a motor is 36:8, so that motor windings are in fractional-slot double-layer overlapping type winding mode. The magnetic steel punching piece effectively reduces and weakens tooth slot torque of the motor, enables the motor rotor to be capable of running stably in low rotating speed without pulse, and remarkably improves motor noise. Simultaneously, the 8 weight reducing slot holes are added, so that rotor rotating inertia of the motor is much smaller than that of the existing motor, and response speed of the motor is more sensitive.
Description
Technical field
The present invention relates to the punching of a kind of permanent magnet synchronous servo motor rotor magnetic steel, specifically being used for stator core is that 175mm, internal diameter are the permanent magnet synchronous servo motor rotor magnetic steel punching of 110mm.
Background technology
Along with servo-drive increasingly extensive application in industrial control field; The problem of domestic energy-saving and emission-reduction is more and more outstanding; It is more and more wider that permanent magnet synchronous servo motor adds the SERVO CONTROL utilization, and structure external at present and the embedded rotor magnetic steel punching of domestic permagnetic synchronous motor is as shown in Figure 3, and the quantity of the magnet steel groove on the lamellar body (1) is 4; Groove number on corresponding stator is 36; The iron core external diameter of planting magnet steel flute profile design thus is that 175mm, rotor core are that the motor slot level ratio of 110mm is 36: 4, and motor windings is the folded formula winding of integer groove, and there are a lot of sawtooth waveforms in its motor waveform when low cruise; The operation injustice is steady when low speed (below the 15rpm), and motor noise was bigger than normal when rotor had obvious pulsation phenomenon and low speed.
Summary of the invention
Motor noise problem bigger than normal when obvious pulsation phenomenon and low speed being arranged in order to solve above-mentioned rotor, the present invention provides the punching of a kind of permanent magnet synchronous servo motor rotor magnetic steel, and it can eliminate sawtooth waveforms basically, also can make motor even running when low speed; Technical scheme of the present invention is: be the round sheet structure, on lamellar body, be provided with rotor core hole and magnet steel groove, it is characterized in that: the quantity of described magnet steel groove is 8, and its center of circle with lamellar body is that the center evenly distributes; Simultaneously on lamellar body, also be provided with 8 loss of weight slotted holes, it is that the center evenly distributes with the center of circle of lamellar body also.
The present invention adopts the beneficial effect of above technical scheme to be: the applied motor stator punching of the present invention still maintains 36 grooves, and the motor rotor magnetic steel groove is 8, so the groove level ratio of motor is 36: 8; Motor windings promptly becomes the fractional slot winding form by original integer winding; Effectively reduce and weakened the cogging torque of motor; Motor motor waveform when low speed trends towards sine wave more; Even make the motor still can the even running rotor and the no pulse phenomenon when the slow-speed of revolution of 3rpm, motor noise obviously improves; Owing to increased by 8 loss of weight slotted holes, the rotor moment of inertia of motor is just much smaller than existing simultaneously, thereby makes the motor response speed sensitiveer.
Description of drawings
Fig. 1 is a permanent magnet synchronous servo motor magnet steel rotor punching structural representation;
Fig. 2 is a permanent magnet synchronous servo motor magnet steel rotor profiles structural representation;
Fig. 3 is former permanent magnet synchronous servo motor magnet steel rotor punching structural representation;
Among the figure, 1 lamellar body, 2 magnet steel grooves, 3 loss of weight slotted holes, 4 rotor core holes, 5 pressing plates, 6 magnet steel.
Embodiment
As shown in Figure 1, the present invention is the round sheet structure, on lamellar body 1, is provided with rotor core hole 4 and magnet steel groove 2, and it is characterized in that: the quantity of described magnet steel groove 2 is 8, and its center of circle with lamellar body 1 is that the center evenly distributes; Simultaneously on lamellar body 1, also be provided with 8 loss of weight slotted holes 3, it is that the center evenly distributes with the center of circle of lamellar body 1 also; The present invention only need change the diel of rotor punching; On punch press, stamp out the rotor magnetic steel punching shown in Fig. 1 with cold rolling silicon steel sheet, on special-purpose rotor press, itself and pressing plate 5 are laminated the back magnet steel 6 that embeds some that is shaped again and promptly constitute permanent magnet synchronous servo motor magnet steel rotor as shown in Figure 2.
Above-mentioned embodiment is exemplary, is to be the restriction that this patent is comprised scope in order better to make those skilled in the art can understand this patent, can not to be interpreted as; So long as the technology contents essence of having done according to the disclosed technical scheme of this patent is identical or any change or the modification that are equal to, all fall into the scope that this patent comprises.
Claims (1)
1. permanent magnet synchronous servo motor rotor magnetic steel punching; Be the round sheet structure; On lamellar body (1), be provided with rotor core hole (4) and magnet steel groove (2), it is characterized in that: the quantity of described magnet steel groove (2) is 8, and its center of circle with lamellar body (1) is that the center evenly distributes; Simultaneously on lamellar body, also be provided with 8 loss of weight slotted holes (3), it is that the center evenly distributes with the center of circle of lamellar body (1) also.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100777196A CN102593988A (en) | 2012-03-22 | 2012-03-22 | Magnetic steel punching piece of permanent magnet synchronous servo motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100777196A CN102593988A (en) | 2012-03-22 | 2012-03-22 | Magnetic steel punching piece of permanent magnet synchronous servo motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102593988A true CN102593988A (en) | 2012-07-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100777196A Pending CN102593988A (en) | 2012-03-22 | 2012-03-22 | Magnetic steel punching piece of permanent magnet synchronous servo motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102593988A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329778A (en) * | 2016-11-14 | 2017-01-11 | 日本电产凯宇汽车电器（江苏）有限公司 | Plastic package EPS (electric power storage) brushless motor rotor structure |
| CN110247495A (en) * | 2019-07-18 | 2019-09-17 | 奇瑞汽车股份有限公司 | Rotor punching, rotor core, driving motor for electric automobile and production method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2681433Y (en) * | 2003-12-03 | 2005-02-23 | 浙江中源电气有限公司 | Servo permanent-magnet motor rotor |
-
2012
- 2012-03-22 CN CN2012100777196A patent/CN102593988A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2681433Y (en) * | 2003-12-03 | 2005-02-23 | 浙江中源电气有限公司 | Servo permanent-magnet motor rotor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329778A (en) * | 2016-11-14 | 2017-01-11 | 日本电产凯宇汽车电器（江苏）有限公司 | Plastic package EPS (electric power storage) brushless motor rotor structure |
| CN110247495A (en) * | 2019-07-18 | 2019-09-17 | 奇瑞汽车股份有限公司 | Rotor punching, rotor core, driving motor for electric automobile and production method |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120718 |
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| WD01 | Invention patent application deemed withdrawn after publication |