CN207083002U - The stator and stepper motor of stepper motor - Google Patents
The stator and stepper motor of stepper motor Download PDFInfo
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- CN207083002U CN207083002U CN201721049707.7U CN201721049707U CN207083002U CN 207083002 U CN207083002 U CN 207083002U CN 201721049707 U CN201721049707 U CN 201721049707U CN 207083002 U CN207083002 U CN 207083002U
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- stepper motor
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Abstract
The stator and stepper motor of stepper motor, it is related to stepper motor technical field, stepper motor includes stator and rotor, stator includes multiple magnetic poles, each magnetic pole is provided with multiple stator tooths, there is teeth groove between the adjacent stator tooth of same magnetic pole, the side to connect with teeth groove of each stator tooth includes vertical plane and inclined-plane, high 0.21mm~the 0.255mm of the vertical plane of each stator tooth, it is and vertical with the top surface of the stator tooth, there is chamfering of the radius for 0.3mm with the junction on the inclined-plane of the stator tooth, the angle on the inclined-plane and the inclined-plane of adjacent stator tooth of each stator tooth is 70 °, and both junctions have the chamfering that radius is 0.3mm.The stator that the utility model is created is between adjacent stator tooth and the structural transition of teeth groove compares mitigation, so that the changes of magnetic field of stator tooth and teeth groove intersection compares mitigation, rotor velocity variations during rotation compare mitigation, therefore vibration is smaller, and noise is also low.
Description
Technical field
The invention is related to stepper motor technical field.
Background technology
Stepper motor is the opened loop control motor that electric impulse signal is changed into angular displacement or displacement of the lines, is modern digital journey
Main executive component in sequence control system, application are extremely wide.Under normal circumstances, the rotating speed of motor, the position stopped
Depending on the frequency and umber of pulse of pulse signal, without being influenceed by load change, when step actuator receives a pulse
Signal, it rotates a fixed angle with regard to Driving Stepping Motor by the direction of setting, and this angle is referred to as step angle.Pass through control
The quantity of pulse processed controls angular displacement, so as to reaching the purpose being accurately positioned；Electricity is controlled by controlling the frequency of pulse
The rotating speed and acceleration of machine.
Stepper motor mainly includes stator and rotor, and stator is provided with multiple magnetic poles, and magnetic pole is provided with stator tooth, and rotor is provided with
Rotor tooth, rotor tooth is directed at stator tooth when static, and stepper motor often receives a pulse signal, and rotor rotates, because of rotor tooth
Magnetic fields between stator tooth, rotor tooth move the spacing of a stator tooth, and are directed at next stator of direct of travel
Tooth, one step angle of now stepper motor rotation, stepper motor are exactly rotation operation so step by step.
The stator of existing stepper motor, the stepper motor as disclosed in Chinese patent ZL201120476235.X, referring to this
The Figure of description 1 of Chinese patent, in the cross section of its stator, the structure of stator tooth be it is approximate rectangular, adjacent stators tooth it
Between groove, i.e. the structure of teeth groove is also close with rectangle, and stator tooth and teeth groove are interlaced linear arrangements and then bend again and be in
The shape that circular arrangement forms.The stator of existing this stepper motor, stator tooth is compared with the changes of magnetic field of teeth groove intersection
Fierceness, stepper motor often turn over a step angle in rotation process, because fierce changes of magnetic field, the velocity variations of rotor
Also it is fiercer, so that stepper motor vibrates larger in the process of running, produce bigger noise.In addition, in described
In the stator of stepper motor disclosed in state's patent, referring to the Figure of description 1 of the Chinese patent, corner on the outside of stator is located at, is used
Unreasonable in the position setting of the installation portion of installation, each installation portion and a magnetic pole are coaxial, and the adjacent magnetic pole of the magnetic pole is then
It is fitted without portion therewith to connect, causes stator structure uneven, magnetic field is also uneven, and rotor suffers from this, and rotating speed is difficult to
It is gentle uniform, exacerbate vibration and the noise of motor.
The content of the invention
In view of this, the invention provides a kind of stator of stepper motor and the stepper motor with the stator, can subtract
Vibration and reduction noise in small stepper motor running.
To achieve the above object, the invention provides following technical scheme.
The stator of stepper motor, including multiple magnetic poles, each magnetic pole is provided with multiple stator tooths, located at the phase of same magnetic pole
There is teeth groove between adjacent stator tooth, the side to connect with teeth groove of each stator tooth includes vertical plane and inclined-plane, each stator tooth
The high 0.21mm~0.255mm of the vertical plane, and, handing-over with the inclined-plane of the stator tooth vertical with the top surface of the stator tooth
Place is with the chamfering that radius is 0.3mm, the angle on the inclined-plane of each stator tooth and the inclined-plane of adjacent stator tooth
70 °, and both junctions have the chamfering that radius is 0.3mm.This is technical scheme 1.
The side of stator tooth is additionally provided with inclined-plane, and set chamfering, phase in each junction except the vertical plane vertical with top surface
Than the structure of existing stator, the stator of the invention between adjacent stator tooth and teeth groove structural transition it is relatively more slow
With so that the changes of magnetic field of stator tooth and teeth groove intersection compares mitigation, and the ring stator changes of magnetic field of one week correspondingly also compares
Relax, in this way, rotor velocity variations during rotation compare mitigation, the vibration of stepper motor is smaller, the noise of operation
Just reduce.
The stator of stepper motor according to technical scheme 1, the height of stator tooth is 1.71mm~1.875mm.This is
Technical scheme 2.
The stator of stepper motor according to technical scheme 1, the width of stator crest top land is 0.85 ± 0.015mm.Phase
Width than existing 0.9mm is smaller, and the magnetic field of stator tooth is more concentrated, and the torque of stepper motor is also just bigger.This is technical side
Case 3.
The stator of stepper motor according to technical scheme 1, the interior diameter of stator tooth is 33.9mm.This is technical scheme
4。
The stator of stepper motor according to technical scheme 1, magnetic pole have 8, and they equably arrange in circular, often
Individual magnetic pole is provided with 6 stator tooths uniformly arranged.This is technical scheme 5.
The stator of stepper motor according to technical scheme 5, the symmetry axis of each magnetic pole are symmetrical with adjacent magnetic pole
The angle of axle is 45 ° ± 0.05 °.This is technical scheme 6.
The stator of stepper motor according to technical scheme 1, stator length and it is wide be 56.4 ± 0.08mm.This is
Technical scheme 7.
The stator of stepper motor according to technical scheme 1, it is multiple described fixed for installing that the stator outside is provided with
The installation portion of son, installation portion are equably set on the outside of stator described in ring, the symmetry axis of each installation portion and two neighboring magnetic pole it
Between symmetrical overlapping of axles.In this way, the structure of stator is more uniform, its caused Distribution of Magnetic Field is also more uniformly distributed, and helps to reduce
Vibration in stepper motor running, so as to reduce noise.This is technical scheme 8.
The stator of stepper motor according to technical scheme 8, magnetic pole have 8, and they are equably in circular arrangement, peace
Dress portion has 4.This is technical scheme 9.
Stepper motor, including stator and rotor, stator are the stator described in technical scheme any one of 1-9.This is technical side
Case 10.
Brief description of the drawings
Fig. 1 is the structural representation of the stator of the stepper motor of the invention；
Fig. 2 is the structural representation of the magnetic pole of the stator of the stepper motor of the invention.
Reference includes：
Magnetic pole 1, stator tooth 2, top surface 21, vertical plane 22, inclined-plane 23, teeth groove 3, installation portion 4.
Embodiment
The invention is elaborated below in conjunction with specific embodiment.
The stepper motor of the invention includes stator and rotor, as shown in figure 1, stator is included equably in circular row
8 magnetic poles 1 of cloth, each magnetic pole 1 is provided with 6 stator tooths 2 uniformly arranged, referring to Fig. 2, located at the adjacent of same magnetic pole 1
Stator tooth 2 between there is teeth groove 3, the side to connect with teeth groove 3 of each stator tooth 2 includes vertical plane 22 and inclined-plane 23, each
The 22 high H1 of the vertical plane of stator tooth 2 is 0.21mm~0.255mm, and vertical with the top surface 21 of the stator tooth 2, with the stator tooth
The junction on 2 inclined-plane 23 has chamfering, and the radius R1 of the chamfering is 0.3mm, the inclined-plane 23 of each stator tooth 2 with
The angle ∠ 2 on the inclined-plane 23 of adjacent stator tooth 2 is 70 °, and both junctions have chamfering, the radius R2 of the chamfering
For 0.3mm.The side of stator tooth 2 is additionally provided with inclined-plane 23, and set in each junction except the vertical plane 22 vertical with top surface 21
Chamfering, compared to the structure of existing stator, the stator of the invention between adjacent stator tooth 2 and teeth groove 3 structure
Mitigation is compared in transition so that the changes of magnetic field of stator tooth 2 and the intersection of teeth groove 3 compares mitigation, the ring stator changes of magnetic field of one week
Correspondingly also compare mitigation, in this way, rotor velocity variations during rotation compare mitigation, the vibration of stepper motor is smaller,
The noise of operation also just reduces.
Preferably, the height of stator tooth 2, i.e. diameter D1- diameters D2 difference are 1.71mm~1.875mm.Stator tooth 2 pushes up
The width W2 in face 21 is 0.85 ± 0.015mm.Width compared to existing 0.9mm is smaller, and the magnetic field of stator tooth 2 is more concentrated, stepping
The torque of motor is also just bigger.The interior diameter D2 of stator tooth 2 is 33.9mm.The symmetry axis of each magnetic pole 1 and adjacent magnetic pole 1
Symmetry axis angle ∠ 1 be 45 ° ± 0.05 °.The long L1 and wide W1 of stator is 56.4 ± 0.08mm.On the outside of the stator
Provided with 4 installation portions 4 for being used to install the stator, installation portion 4 is equably set on the outside of stator described in ring, relative two peaces
The symmetry axis in dress portion 4 is axle a, and the symmetry axis of another two installation portion 4 is axle b, symmetry axis and the phase therewith of each installation portion 4
Symmetrical overlapping of axles between the two neighboring magnetic pole 1 connect.In this way, the structure of stator is more uniform, its caused Distribution of Magnetic Field
It is more uniformly distributed, helps to reduce the vibration in stepper motor running, so as to reduce noise.
Finally it should be noted that above example is only illustrating the technical scheme of the invention, rather than to this hair
It is bright create protection domain limitation, although being explained with reference to preferred embodiment to the invention, this area it is general
It is logical it will be appreciated by the skilled person that can be modified to the technical scheme of the invention or equivalent substitution, without departing from this
The spirit and scope of innovation and creation technical scheme.
Claims (10)
1. the stator of stepper motor, including multiple magnetic poles, each magnetic pole is provided with multiple stator tooths, located at the adjacent of same magnetic pole
Stator tooth between there is teeth groove, it is characterized in that, the side to connect with teeth groove of each stator tooth includes vertical plane and inclined-plane, each
High 0.21mm~the 0.255mm of the vertical plane of stator tooth, and, the inclined-plane with the stator tooth vertical with the top surface of the stator tooth
Junction there is the chamfering that radius is 0.3mm, the inclined-plane of the inclined-plane of each stator tooth and adjacent stator tooth
Angle is 70 °, and both junctions have the chamfering that radius is 0.3mm.
2. the stator of stepper motor according to claim 1, it is characterized in that, the height of stator tooth for 1.71mm~
1.875mm。
3. the stator of stepper motor according to claim 1, it is characterized in that, the width of stator crest top land for 0.85 ±
0.015mm。
4. the stator of stepper motor according to claim 1, it is characterized in that, the interior diameter of stator tooth is 33.9mm.
5. the stator of stepper motor according to claim 1, it is characterized in that, magnetic pole has 8, and they are equably in annular shape
Arrangement, each magnetic pole are provided with 6 stator tooths uniformly arranged.
6. the stator of stepper motor according to claim 5, it is characterized in that, the symmetry axis of each magnetic pole and adjacent magnetic pole
The angle of symmetry axis be 45 ° ± 0.05 °.
7. the stator of stepper motor according to claim 1, it is characterized in that, the stator length and it is wide be 56.4 ±
0.08mm。
8. the stator of stepper motor according to claim 1, it is characterized in that, it is provided with the outside of the stator multiple for installing
The installation portion of the stator, installation portion are equably set on the outside of stator described in ring, the symmetry axis of each installation portion with it is two neighboring
Symmetrical overlapping of axles between magnetic pole.
9. the stator of stepper motor according to claim 8, it is characterized in that, magnetic pole has 8, and they are equably in annular shape
Arrangement, installation portion have 4.
10. stepper motor, including stator and rotor, it is characterized in that, stator is the stator described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721049707.7U CN207083002U (en) | 2017-08-20 | 2017-08-20 | The stator and stepper motor of stepper motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721049707.7U CN207083002U (en) | 2017-08-20 | 2017-08-20 | The stator and stepper motor of stepper motor |
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| Publication Number | Publication Date |
|---|---|
| CN207083002U true CN207083002U (en) | 2018-03-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721049707.7U Active CN207083002U (en) | 2017-08-20 | 2017-08-20 | The stator and stepper motor of stepper motor |
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| Country | Link |
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| CN (1) | CN207083002U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109462295A (en) * | 2018-11-09 | 2019-03-12 | 重庆东渝中能实业有限公司 | Stepper motor |
| CN110544994A (en) * | 2018-05-28 | 2019-12-06 | 上海鸣志电器股份有限公司 | Stepping motor stator and stepping motor with same |
-
2017
- 2017-08-20 CN CN201721049707.7U patent/CN207083002U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544994A (en) * | 2018-05-28 | 2019-12-06 | 上海鸣志电器股份有限公司 | Stepping motor stator and stepping motor with same |
| CN109462295A (en) * | 2018-11-09 | 2019-03-12 | 重庆东渝中能实业有限公司 | Stepper motor |
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