CN108736598A - A kind of step motor stator and the stepper motor with stator - Google Patents
A kind of step motor stator and the stepper motor with stator Download PDFInfo
- Publication number
- CN108736598A CN108736598A CN201710256352.7A CN201710256352A CN108736598A CN 108736598 A CN108736598 A CN 108736598A CN 201710256352 A CN201710256352 A CN 201710256352A CN 108736598 A CN108736598 A CN 108736598A
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- CN
- China
- Prior art keywords
- stator
- pole
- motor
- step motor
- small tooth
- 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 claims abstract description 42
- 238000009413 insulation Methods 0.000 claims abstract description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000003781 tooth socket Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The present invention relates to a kind of step motor stators, including stator core (1) and insulation frame for stator (5), described stator core (1) circumferencial direction is evenly arranged several stator main poles (2), the inner end of the stator main pole (2) is equipped with the small tooth of several stators (3), the small tooth of the stator (3) and stator main pole (2) are attached by stator pole shoes (4), coiling stator winding on the insulation frame for stator (5), circumferencial direction of the stator pole shoes (4) along stator main pole (2) both sides extends, and adjacent the distance between pole shoe (4) L that determines is more than or equal to 0.5mm.Compared with prior art, the advantages that present invention can increase the coiling area of motor and promote electric machine winding area utilization, be conducive to the torque for increasing motor, reduce motor temperature rise.
Description
Technical field
The present invention relates to a kind of motor stator and stepper motors, more particularly, to a kind of step motor stator and with this
The stepper motor of stator.
Background technology
Existing composite stepper motor core stamping, structure are illustrated in fig. 1 shown below, and 1 circumferencial direction of stator core is evenly distributed with
Several stator main poles 2 in the inner end of stator main pole there is the small tooth 3 of multiple stators, the small tooth 3 of stator and stator main pole 2 to pass through fixed
Sub- pole shoe 4 is attached.
Insulation frame for stator 5 is sleeved on stator main pole 2, on insulation frame for stator 5 coiling stator coil, the first stator around
Group occupied area 6 is limited by line mouth of winding machine boundary line 7 and insulation frame for stator 5.Two line mouth of winding machine sides in one slot
When coil winding machine coiling is in the region that boundary line 7 limits, the minimum space of line mouth disengaging, the width of small space is defined as L.Coil winding machine
The intersection point of line mouth boundary line 7 and insulation frame for stator 5 is P, and the vertex of the insulation framework 5 on stator tooth boots 4 is Q, P and Q
Line be stator winding boundary line 8, it and skeleton (M, N) together define the first stator winding occupied area on stator main pole
6。
First stator winding occupied area 6 is an approximate trapezoid region, and MP is upper bottom, and NQ is bottom, and MN is height.As NQ long
Degree and when MP approximately equals, coiling using area maximum；If MP is much larger than NQ, can cause close to P point areas adjacents around
Line causes random line to Q dot crawls, influences the utilization rate of coiling area.Serious, coiling can be slipped to notched areas, stator around
Line fails.
Meanwhile in the case of motor angular pitch Ts and the small facewidth Bt of stator certain, wide stator slot mouth width B can be caused
The cogging torque of motor increases, and influences the positioning accuracy of motor.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of step motor stators
And the stepper motor with stator.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of step motor stator, including stator core and insulation frame for stator, the stator core circumferencial direction are equal
The inner end of even several stator main poles of arrangement, the stator main pole is equipped with the small tooth of several stators, the small tooth of the stator and stator main pole
It is attached by stator pole shoes, coiling stator winding on the insulation frame for stator, the stator pole shoes are along stator master
The circumferencial direction of pole both sides extends, and adjacent the distance between pole shoe L that determines is more than or equal to 0.5mm.
The extension of the stator pole shoes intersects with line mouth of winding machine boundary line, and intersection point is one.
The extension of the stator pole shoes intersects with line mouth of winding machine boundary line, and intersection point is two.
The inner end of each stator main pole is equipped with the small tooth of Ns stator, and 2≤Ns≤5.
The Ns is preferably 2.
The Ns is preferably 3.
A kind of stepper motor with stator, including rotor, the motor further include the step motor stator.
The rotor includes rotor core, which is uniformly distributed the small tooth of Nr rotor, and 14≤Nr≤50.
The Nr is preferably 18,22 or 26.
Compared with prior art, the present invention has the following advantages：
1) the tooth boots for extending electrodes of motor both sides to circumferencial direction can increase the coiling area of motor and promote electric machine winding
Area utilization is conducive to the torque for increasing motor, reduces motor temperature rise.
2) pole shoe extended can improve the Distribution of Magnetic Field of motor tooth socket relative position, reduce the cogging torque of motor, be promoted
The running precision of motor.
Description of the drawings
Fig. 1 is existing composite stepper motor core stamping structural schematic diagram；
Wherein 1 is stator core, and 2 be stator main pole, and 3 be the small tooth of stator, and 4 be stator tooth boots, and 5 be insulation frame for stator, 6
For the first stator winding occupied area, 7 be line mouth of winding machine boundary line, and 8 be stator winding boundary line, L be line mouth of winding machine around
Minimum widith is passed in and out when line, B is stator slot mouth width, and Bt is the small facewidth of stator, and Ts is stator angular pitch；
Fig. 2 is the structural schematic diagram of the embodiment of the present invention 1；
Wherein 6 be the first stator winding occupied area, and 7 be line mouth of winding machine boundary line, and 9 be face shared by the second stator winding
Product, L pass in and out minimum widith when being line mouth of winding machine coiling；
Fig. 3 passes in and out minimum widith schematic diagram when being stator rabbet and the line mouth of winding machine coiling of the embodiment of the present invention 1；
Wherein L passes in and out minimum widith when being line mouth of winding machine coiling, B is stator slot mouth width；
Fig. 4 is the structural schematic diagram of the embodiment of the present invention 2；
Wherein 6 be the first stator winding occupied area, and 7 be line mouth of winding machine boundary line, and 9 be face shared by the second stator winding
Product, L pass in and out minimum widith when being line mouth of winding machine coiling, and B is stator rabbet.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiment is a part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other reality that those of ordinary skill in the art are obtained without making creative work
Example is applied, the scope of protection of the invention should be all belonged to.
Embodiment 1
As shown in Fig. 2, stator pole shoes are intersected to the extension of main pole both sides circumferencial direction and line mouth of winding machine boundary line 7, hand over
Point is R and S, in this way, insulation framework can also extend to from point Q and mutually give Q ' points with line mouth of winding machine boundary line 7, stator at this time
Winding occupied area is the sum of the first stator winding occupied area 6 and the second stator winding occupied area 9, and envelope is
Region defined by PMNQ ', wherein NQ ' and MP approximately equals, effectively improve the utilization rate of coiling area, while also avoiding
Electric machine winding failure.Big coiling area and high coiling area utilization rate are conducive to be promoted the operation torque of motor, reduce
Motor temperature rise.
As shown in figure 3, in the case where not changing motor small facewidth Bt and stator angular pitch Ts, stator main pole and main pole it
Between minimum range disengaging minimum widith L (L >=0.5mm) when becoming line mouth of winding machine coiling from the slot opening B of existing scheme, change
The Distribution of Magnetic Field of motor tooth socket relative position has been apt to it, has reduced motor cogging torque, has improved motor operation precision.
Embodiment 2
As shown in figure 4, stator pole shoes are intersected to the extension of main pole both sides circumferencial direction and line mouth of winding machine boundary line 7, hand over
Point is R, connecting stator tooth points outside T and R, the profile in the outside of the small tooth of stator is formed, in this way, insulation framework can also be from point Q
It extends to and mutually gives Q ' points with line mouth of winding machine boundary line 7, stator winding occupied area is face shared by the first stator winding at this time
The sum of product 6 and the second stator winding occupied area 9, region defined by envelope PMNQ ', wherein NQ ' and MP approximation phases
Deng, effectively improve the utilization rate of coiling area, while also avoid electric machine winding failure.Big coiling area and it is high around
Line area utilization is conducive to be promoted the operation torque of motor, reduces motor temperature rise.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or replace
It changes, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with right
It is required that protection domain subject to.
Claims (9)
1. a kind of step motor stator, including stator core (1) and insulation frame for stator (5), the stator core (1) circumference
Direction is evenly arranged several stator main poles (2), and the inner end of the stator main pole (2) is equipped with the small tooth of several stators (3), the stator
Small tooth (3) and stator main pole (2) are attached by stator pole shoes (4), on the insulation frame for stator (5) coiling stator around
Group, which is characterized in that circumferencial direction of the stator pole shoes (4) along stator main pole (2) both sides extends, and adjacent described determines
The distance between pole shoe (4) L is more than or equal to 0.5mm.
2. a kind of step motor stator according to claim 1, which is characterized in that the extension of the stator pole shoes (4)
Portion intersects with line mouth of winding machine boundary line (7), and intersection point is one.
3. a kind of step motor stator according to claim 1, which is characterized in that the extension of the stator pole shoes (4)
Portion intersects with line mouth of winding machine boundary line (7), and intersection point is two.
4. a kind of step motor stator according to claim 1, which is characterized in that each stator main pole (2)
Inner end is equipped with the small tooth of Ns stator (3), and 2≤Ns≤5.
5. a kind of step motor stator according to claim 4, which is characterized in that the Ns is preferably 2.
6. a kind of step motor stator according to claim 4, which is characterized in that the Ns is preferably 3.
7. a kind of stepper motor with stator, including rotor, which is characterized in that the motor further includes claim 1-6
In any step motor stator.
8. stepper motor according to claim 7, which is characterized in that the rotor includes rotor core, the rotor iron
Core is uniformly distributed the small tooth of Nr rotor, and 14≤Nr≤50.
9. stepper motor according to claim 8, which is characterized in that the Nr is preferably 18,22 or 26.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710256352.7A CN108736598B (en) | 2017-04-19 | 2017-04-19 | Stator of stepping motor and stepping motor with stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710256352.7A CN108736598B (en) | 2017-04-19 | 2017-04-19 | Stator of stepping motor and stepping motor with stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108736598A true CN108736598A (en) | 2018-11-02 |
| CN108736598B CN108736598B (en) | 2023-12-12 |
Family
ID=63924826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710256352.7A Active CN108736598B (en) | 2017-04-19 | 2017-04-19 | Stator of stepping motor and stepping motor with stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108736598B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011114897A (en) * | 2009-11-25 | 2011-06-09 | Nidec Servo Corp | Two-phase hybrid rotary electric machine |
| CN102664510A (en) * | 2012-05-21 | 2012-09-12 | 常州市旭泉精密电机有限公司 | Eight-pole stepping motor with large stepping angle being 3 degrees |
| CN203607936U (en) * | 2013-11-20 | 2014-05-21 | 中山大洋电机股份有限公司 | Strip stator iron core and plastic sealing motor applied in same |
| CN206908394U (en) * | 2017-04-19 | 2018-01-19 | 上海鸣志电器股份有限公司 | Step motor stator and the stepper motor with stator |
-
2017
- 2017-04-19 CN CN201710256352.7A patent/CN108736598B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011114897A (en) * | 2009-11-25 | 2011-06-09 | Nidec Servo Corp | Two-phase hybrid rotary electric machine |
| CN102664510A (en) * | 2012-05-21 | 2012-09-12 | 常州市旭泉精密电机有限公司 | Eight-pole stepping motor with large stepping angle being 3 degrees |
| CN203607936U (en) * | 2013-11-20 | 2014-05-21 | 中山大洋电机股份有限公司 | Strip stator iron core and plastic sealing motor applied in same |
| CN206908394U (en) * | 2017-04-19 | 2018-01-19 | 上海鸣志电器股份有限公司 | Step motor stator and the stepper motor with stator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108736598B (en) | 2023-12-12 |
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