CN110112851A - A kind of rotor reducing the fluctuation of synchronous motor main shaft torque - Google Patents
A kind of rotor reducing the fluctuation of synchronous motor main shaft torque Download PDFInfo
- Publication number
- CN110112851A CN110112851A CN201910530116.9A CN201910530116A CN110112851A CN 110112851 A CN110112851 A CN 110112851A CN 201910530116 A CN201910530116 A CN 201910530116A CN 110112851 A CN110112851 A CN 110112851A
- Authority
- CN
- China
- Prior art keywords
- magnetic sheet
- pole
- magnetic
- main
- sheets
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
Abstract
The present invention relates to a kind of rotors, reduce the effect of noise.The invention discloses a kind of rotors of reduction synchronous motor main shaft torque fluctuation, including rotor matrix, two groups of magnetic sheets are bonded with outside the rotor matrix, casing is arranged with outside the rotor matrix, the inner sidewall of the magnetic sheet fitting casing, magnetic sheet described in every group includes the pole N magnetic sheet and the pole S magnetic sheet, the pole N magnetic sheet and the pole S magnetic sheet are spaced apart from each other along rotor matrix external peripheral surface circularizes arrangement, the each pole N magnetic sheet includes a main magnetic sheet and two secondary magnetic sheets, the arc length of the main magnetic sheet is greater than secondary magnetic sheet, and two secondary magnetic sheets are located at the side of main magnetic sheet.The pole N is composed of 1 main magnetic sheet and 2 secondary magnetic sheets, and by improving to the arranged evenly of magnetic sheet, Air-gap Flux Density in Permanent Magnet Machines is bigger, and iron loss is smaller, can improve the poly- magnetic efficiency of each magnetic pole, can effectively weaken cogging torque, improves motor torque fluctuation.
Description
Technical field
The present invention relates to a kind of rotors, more specifically, it relates to which a kind of reduce turning for synchronous motor main shaft torque fluctuation
Son.
Background technique
Currently, synchronous motor is as shown in Figure 1, it can be seen that magnetic circuit is made of two groups of magnetic sheets, and every group of magnetic sheet includes the pole N magnetic
Piece 3 and the pole S magnetic sheet 4 will lead to synchronous motor and generate torque wave since there are cogging torques between stator tooth wall and permanent magnet
It is dynamic, cause noise, vibration increase problem.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of reduction synchronous motor main shaft torque wave
Dynamic rotor, having reduces torque ripple, reduces the effect of noise.
To realize the above-mentioned technical purpose, the present invention provides the following technical scheme that a kind of reduction synchronous motor main shaft torque
The rotor of fluctuation, including rotor matrix, the rotor matrix are bonded with two groups of magnetic sheets outside, are arranged with outside the rotor matrix
Pipe, the inner sidewall of magnetic sheet fitting casing, magnetic sheet described in every group include the pole N magnetic sheet and the pole S magnetic sheet, the pole N magnetic sheet and the pole S
Magnetic sheet is spaced apart from each other along rotor matrix external peripheral surface circularizes arrangement, and each pole N magnetic sheet includes a main magnetic sheet and two
A pair magnetic sheet, the arc length of the main magnetic sheet are greater than secondary magnetic sheet, and two secondary magnetic sheets are located at the side of main magnetic sheet.
By using above-mentioned technical proposal, the pole N is composed of 1 main magnetic sheet and 2 secondary magnetic sheets, by improving to magnetic
Piece it is arranged evenly, Air-gap Flux Density in Permanent Magnet Machines is bigger, and iron loss is smaller, can improve the poly- magnetic efficiency of each magnetic pole, can effectively weaken tooth
Slot torque improves motor torque fluctuation.
Detailed description of the invention
Fig. 1 is in the present embodiment for showing the schematic diagram of the prior art；
Fig. 2 is in the present embodiment for showing the integrally-built schematic diagram of rotor；
Fig. 3 is in the present embodiment for showing the schematic diagram of magnetic sheet arrangement mode.
In figure, 1, rotor matrix；2, casing；3, the pole N magnetic sheet；4, the pole S magnetic sheet；31, main magnetic sheet；32, secondary magnetic sheet.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Embodiment: a kind of rotor reducing the fluctuation of synchronous motor main shaft torque turns as shown in Fig. 2, including rotor matrix 1
It is bonded with two groups of magnetic sheets outside subbase body 1, casing 2 is arranged with outside rotor matrix 1, magnetic sheet is bonded the inner sidewall of casing 2, and casing 2 will
Magnetic sheet is clamped on 1 surface of rotor matrix, ensure that magnetic sheet stability, will not loosen.
As shown in figure 3, every group of magnetic sheet includes the pole N magnetic sheet 3 and the pole S magnetic sheet 4, the pole N magnetic sheet 3 and the pole S magnetic sheet 4 are along rotor matrix
1 external peripheral surface, which is spaced apart from each other, circularizes arrangement.Each pole N magnetic sheet 3 includes a main magnetic sheet 31 and two secondary magnetic sheets 32, main magnetic
The arc length of piece 31 is greater than secondary magnetic sheet 32, and two secondary magnetic sheets 32 are located at the side of main magnetic sheet 31.
The pole N magnetic sheet 3 includes a main magnetic sheet 31 and two secondary magnetic sheets 32, and the magnetizing direction of three pieces magnetic sheet is different, this
Kind mode is referred to as the rich compound magnetic sheet array of China.The magnetic sheet of different magnetizing directions is arranged according to certain rule by improving
Column can converge the magnetic line of force in the side of magnetic sheet array, and weaken the magnetic line of force in the other side, to obtain ideal unilateral
Magnetic field.Have using the magneto of the multipair extremely rich compound array structure of China compared with conventional permanent magnet motor and is more nearly Sine distribution
Air-gap field.In the case where permanent-magnet material dosage is constant, it is bigger to win the compound array permanent magnetism motor gas-gap flux density of China, iron loss compared with
It is small, poly- magnetic efficiency can be improved, and can effectively weaken cogging torque, improve motor torque fluctuation.
Claims (1)
1. a kind of rotor for reducing the fluctuation of synchronous motor main shaft torque, including rotor matrix (1), it is characterised in that: the rotor
It is bonded with two groups of magnetic sheets outside matrix (1), is arranged with casing (2) outside the rotor matrix (1), magnetic sheet fitting casing (2)
Inner sidewall, magnetic sheet described in every group include the pole N magnetic sheet (3) and the pole S magnetic sheet (4), and the pole N magnetic sheet (3) and the pole S magnetic sheet (4) edge turn
Subbase body (1) external peripheral surface, which is spaced apart from each other, circularizes arrangement, each pole N magnetic sheet (3) include a main magnetic sheet (31) and
Two secondary magnetic sheets (32), the arc length of the main magnetic sheet (31) are greater than secondary magnetic sheet (32), and two secondary magnetic sheets (32) are located at
The side of main magnetic sheet (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910530116.9A CN110112851A (en) | 2019-06-18 | 2019-06-18 | A kind of rotor reducing the fluctuation of synchronous motor main shaft torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910530116.9A CN110112851A (en) | 2019-06-18 | 2019-06-18 | A kind of rotor reducing the fluctuation of synchronous motor main shaft torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110112851A true CN110112851A (en) | 2019-08-09 |
Family
ID=67495436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910530116.9A Pending CN110112851A (en) | 2019-06-18 | 2019-06-18 | A kind of rotor reducing the fluctuation of synchronous motor main shaft torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110112851A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403856A (en) * | 2011-09-05 | 2012-04-04 | 同济大学 | Controllable-flux permanent magnet synchronous motor and control system for electric vehicle |
| US20140084731A1 (en) * | 2011-07-08 | 2014-03-27 | Mitsubishi Electric Corporation | Permanent magnet type electric rotating machine and manufacturing method thereof |
| CN104578499A (en) * | 2015-01-29 | 2015-04-29 | 南车株洲电力机车研究所有限公司 | Permanent magnet motor rotor |
| CN105811616A (en) * | 2016-03-23 | 2016-07-27 | 创驱（上海）新能源科技有限公司 | Tangential sectional type magnetic steel and permanent magnet synchronous motor rotor equipped with same |
| CN209748282U (en) * | 2019-06-18 | 2019-12-06 | 无锡博华机电有限公司 | Rotor for reducing torque fluctuation of synchronous motor main shaft |
-
2019
- 2019-06-18 CN CN201910530116.9A patent/CN110112851A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140084731A1 (en) * | 2011-07-08 | 2014-03-27 | Mitsubishi Electric Corporation | Permanent magnet type electric rotating machine and manufacturing method thereof |
| CN102403856A (en) * | 2011-09-05 | 2012-04-04 | 同济大学 | Controllable-flux permanent magnet synchronous motor and control system for electric vehicle |
| CN104578499A (en) * | 2015-01-29 | 2015-04-29 | 南车株洲电力机车研究所有限公司 | Permanent magnet motor rotor |
| CN105811616A (en) * | 2016-03-23 | 2016-07-27 | 创驱（上海）新能源科技有限公司 | Tangential sectional type magnetic steel and permanent magnet synchronous motor rotor equipped with same |
| CN209748282U (en) * | 2019-06-18 | 2019-12-06 | 无锡博华机电有限公司 | Rotor for reducing torque fluctuation of synchronous motor main shaft |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |