CN107231052A - A kind of motor stator of use mild steel slot wedge - Google Patents
A kind of motor stator of use mild steel slot wedge Download PDFInfo
- Publication number
- CN107231052A CN107231052A CN201710489345.1A CN201710489345A CN107231052A CN 107231052 A CN107231052 A CN 107231052A CN 201710489345 A CN201710489345 A CN 201710489345A CN 107231052 A CN107231052 A CN 107231052A
- Authority
- CN
- China
- Prior art keywords
- motor stator
- slot wedge
- mild steel
- wedge
- steel slot
- 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
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/48—Fastening of windings on the stator or rotor structure in slots
- H02K3/487—Slot-closing devices
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
A kind of motor stator of use mild steel slot wedge, including：Motor stator（1）, machine winding wire（2）, winding insulation material（3）, mild steel slot wedge（4）, described motor stator（1）Using open-slot-type, described machine winding wire（2）It is embedded in stator（1）In groove, described winding insulation material（3）It is wrapped in machine winding wire（2）Periphery, described mild steel slot wedge（4）Motor stator is fixed on using insertion（1）Notch（8）Interior edge.
Description
Technical field
The present invention relates to a kind of motor stator of use mild steel slot wedge.
Background technology
With the development of motor technology, the application that rare-earth permanent-magnet electric machine drives as new energy turns into extensive.But Permanent Magnet and Electric
Machine has cogging torque, fluctuates motor torque, produces vibration and noise, prevents motor from even running, is especially becoming
Speed driving in, when torque pulsation frequency is consistent with the mechanical resonance frequency of stator or rotor, cogging torque produce vibration with
Noise will be exaggerated, while cogging torque also directly affects low-speed performance of the motor on speed control and in position control
High accuracy positioning in system, thus how to weaken the cogging torque of magneto is asking for electrical engineering personnel necessary solution at present
Topic.Existing use solution has as follows：1. skewed slot or oblique pole：Skewed stator slot or skewed-rotor are suppression widely used at present
The method of cogging torque pulsation, but can only be weakened part, the oblique pole of skewed slot makes the amplitude of motor electromagnetic torque each harmonic
Effectively reduce, but the coin string of winding counter electromotive force can be caused using this method, thus electromagnetic torque ripple will be increased；②
Fraction channel process：The method can improve cogging torque fundamental frequency, reduce cogging torque pulsation, but use this method, respectively extremely under
Winding distribution is asymmetric, can reduce the average torque of motor；3. magnetic slot-seal method：Be exactly motor stator coil bakelite consolidate
Determine slot wedge and apply last layer magnetic slot mud outside, be allowed to after solidification form the slot wedge with certain magnetic property, so as to reduce stator
The influence of channel opening, makes the air-gap permeance distributing homogeneity between stator and rotor improve, so as to reduce due to tooth
Torque pulsation caused by the effect of grooves, but because the magnetic property of magnetic slot-seal material is not fine, thus for torque pulsation
Weakening is limited.Production technology is also complicated simultaneously, thus is not applied at present by motor manufacturing industry；4. remain silent channel process：
It is exactly that stator slot is not open, notch material is identical with teeth portion material, the magnetic property of notch is good thus more more effective than magnetic slot-seal
Ground eliminates torque pulsation, but is brought and big inconvenient to winding inserting, simultaneously because the copper factor that can not have been obtained, is greatly increased
Groove leakage hole, the time constant of increasing circuit influences the dynamic characteristic of control system, thus has not also applied in existing industry；
5. width of rebate method is reduced：It is exactly that width of rebate is reduced into by 30% ~ 50%, the application energy of this method on the basis of original design
Enough weaken cogging torque, but come difficult to winding inserting process bands.Opening channel process is used at present, and insulation material is used in notch
The method that stator winding is fixed the bakelite wedge of material, this method winding inserting is convenient but cogging torque is big, noise vibration
Also it is big, influence low speed control performance and high accuracy positioning.
Above-mentioned several method respectively has advantage and disadvantage, and how to solve above-mentioned more effective method of problems is current electromechanics trade
The problem to be studied.
In view of the deficiencies in the prior art, it is an object of the invention to provide a kind of motor stator of use mild steel slot wedge.
To achieve these goals, the technical scheme is that：A kind of motor stator of use mild steel slot wedge, bag
Include：Motor stator 1；Machine winding wire 2；Winding insulation material 3；Mild steel slot wedge 4.Described motor stator 1 uses opening
Slot type, described machine winding wire 2 is embedded in the groove of motor stator 1, and described winding insulation material 3 is wrapped in machine winding and led
The periphery of line 2, described mild steel slot wedge 4 is fixed on edge in the notch of motor stator 1 using insertion.
Further, described mild steel slot wedge 4 should be less than the good low-carbon steel of 0.25% magnetic property using phosphorus content
Material.
Further, the top of described mild steel slot wedge 4 is provided with a slot wedge top flange 5, and motor stator 1 notch
8 coordinate.
Further, the inner bottom part of described mild steel slot wedge 4 is provided with slot wedge geometry shape slot wedge groove 6, can be used to every
Magnetic is produced with reducing leakage field.
Further, the both sides of the edge of described mild steel slot wedge 4 are provided with the notch of slot wedge edge 7 and motor stator 1
Inner side is engaged.
It is an advantage of the invention that：This technology uses opening channel process to motor stator, is substituted using mild steel slot wedge traditional
Bakelite material slot wedge and bamboo wood hopper wedge, had both met the fixation to winding in stator slot, and had had good magnetic property again, can
It is effective to reduce vibration and the noise that cogging torque is brought, while each harmonic can be weakened, the existing motor stator open slots of Fig. 3
Bakelite wedge scheme torque fluctuation diagram, a kind of motor stator torque fluctuation diagrams of use mild steel slot wedge of Fig. 4, it is evident that both are right
Application than the present invention causes torque ripple to have apparent weakening, so as to effectively improve the controlling under motor low speed situations
Can, make the high accuracy positioning of motor more accurate, slot wedge can be according to stator rabbet inner edge using the special construction of evagination indent
Physical dimension is flexibly matched, and the geometry shape sunk structure of inner bottom part can efficiently reduce leakage field phenomenon, so that the performance of motor
More preferably, while can rationally and effectively be distributed magnetic conduction situation again.The application of this technology can effectively improve the combination property of motor, together
When winding inserting can be made conveniently to be easy to motor manufacturing again.
Brief description of the drawings
Fig. 1 is a kind of motor stator structure figure of use mild steel slot wedge.
Fig. 2 is mild steel slot wedge geometry figure.
Fig. 3 is existing motor stator open slot bakelite wedge scheme torque fluctuation diagram.
Fig. 4 is a kind of motor stator torque fluctuation diagram of use mild steel slot wedge.
Embodiment
Winding insulation material 3 is placed first in the groove of motor stator 1, machine winding wire 2 is then embedded in winding exhausted
The inner edge of edge material 3, then winding insulation material 3 is wrapped up machine winding wire 2, finally by low-carbon under the guiding of inserting tool
The inner edge of the notch 8 of the insertion motor stator 1 of steel tank wedge 4, reaches in fixing groove winding and eliminates cogging torque and reduce vibration and make an uproar
The purpose of sound.
Claims (5)
1. a kind of motor stator of use mild steel slot wedge, including motor stator（1）, machine winding wire（2）, winding insulation material
Material（3）, mild steel slot wedge（4）, it is characterised in that：Described motor stator（1）Using open-slot-type, described machine winding is led
Line（2）It is embedded in motor stator（1）In groove, described winding insulation material（3）It is wrapped in machine winding wire（2）Periphery, it is described
Mild steel slot wedge（4）Edge in stator rabbet is fixed on using insertion.
2. a kind of motor stator of use mild steel slot wedge according to claim one, it is characterised in that：Described low-carbon
Steel tank wedge（4）The good low-carbon steel material of 0.25% magnetic property should be less than using phosphorus content.
3. a kind of motor stator of use mild steel slot wedge according to claim one, it is characterised in that：Described low-carbon
Steel tank wedge（4）Top is provided with a slot wedge top flange（5）, and motor stator（1）Notch（8）Coordinate.
4. a kind of motor stator of use mild steel slot wedge according to claim one, it is characterised in that：Described low-carbon
Steel tank wedge（4）Inner bottom part be provided with slot wedge geometry shape groove（6）, can be used to every magnetic reduce leakage field generation.
5. a kind of motor stator of use mild steel slot wedge according to claim one, it is characterised in that：Described low-carbon
Steel tank wedge（4）Both sides of the edge be provided with slot wedge edge（7）And motor stator（1）Notch（8）Inner side is engaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710489345.1A CN107231052A (en) | 2017-06-24 | 2017-06-24 | A kind of motor stator of use mild steel slot wedge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710489345.1A CN107231052A (en) | 2017-06-24 | 2017-06-24 | A kind of motor stator of use mild steel slot wedge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107231052A true CN107231052A (en) | 2017-10-03 |
Family
ID=59935233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710489345.1A Pending CN107231052A (en) | 2017-06-24 | 2017-06-24 | A kind of motor stator of use mild steel slot wedge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107231052A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555488A (en) * | 2019-02-08 | 2020-08-18 | 株式会社日立产业机器 | Rotating electric machine and elevator hoist system using same |
| DE102019209257A1 (en) * | 2019-06-26 | 2020-12-31 | Zf Friedrichshafen Ag | Stator for an electric machine |
| CN112994305A (en) * | 2021-04-02 | 2021-06-18 | 沈阳工业大学 | High-efficiency flat permanent magnet torque motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4425521A (en) * | 1982-06-03 | 1984-01-10 | General Electric Company | Magnetic slot wedge with low average permeability and high mechanical strength |
| CN1076560A (en) * | 1992-03-13 | 1993-09-22 | 王大胜 | Slot wedge |
| CN201118306Y (en) * | 2007-11-06 | 2008-09-17 | 上海南洋电机有限公司 | Fall-prevention magnetic slot wedge for electromotor |
| JP2011135674A (en) * | 2009-12-24 | 2011-07-07 | Sinfonia Technology Co Ltd | Canned motor |
| CN205336005U (en) * | 2015-12-31 | 2016-06-22 | 浙江西子富沃德电机有限公司 | Magnetism slot wedge and have motor of this magnetism slot wedge |
| CN106533110A (en) * | 2016-12-22 | 2017-03-22 | 科德数控股份有限公司 | Permanent magnet synchronous motor and method for reducing cogging torque |
-
2017
- 2017-06-24 CN CN201710489345.1A patent/CN107231052A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4425521A (en) * | 1982-06-03 | 1984-01-10 | General Electric Company | Magnetic slot wedge with low average permeability and high mechanical strength |
| CN1076560A (en) * | 1992-03-13 | 1993-09-22 | 王大胜 | Slot wedge |
| CN201118306Y (en) * | 2007-11-06 | 2008-09-17 | 上海南洋电机有限公司 | Fall-prevention magnetic slot wedge for electromotor |
| JP2011135674A (en) * | 2009-12-24 | 2011-07-07 | Sinfonia Technology Co Ltd | Canned motor |
| CN205336005U (en) * | 2015-12-31 | 2016-06-22 | 浙江西子富沃德电机有限公司 | Magnetism slot wedge and have motor of this magnetism slot wedge |
| CN106533110A (en) * | 2016-12-22 | 2017-03-22 | 科德数控股份有限公司 | Permanent magnet synchronous motor and method for reducing cogging torque |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555488A (en) * | 2019-02-08 | 2020-08-18 | 株式会社日立产业机器 | Rotating electric machine and elevator hoist system using same |
| DE102019209257A1 (en) * | 2019-06-26 | 2020-12-31 | Zf Friedrichshafen Ag | Stator for an electric machine |
| CN112994305A (en) * | 2021-04-02 | 2021-06-18 | 沈阳工业大学 | High-efficiency flat permanent magnet torque motor |
| CN112994305B (en) * | 2021-04-02 | 2024-02-06 | 沈阳工业大学 | High-efficiency flat permanent magnet torque motor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20171003 |