CN207490627U - Three-phase stepper motor - Google Patents
Three-phase stepper motor Download PDFInfo
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- CN207490627U CN207490627U CN201721398327.4U CN201721398327U CN207490627U CN 207490627 U CN207490627 U CN 207490627U CN 201721398327 U CN201721398327 U CN 201721398327U CN 207490627 U CN207490627 U CN 207490627U
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- phase
- stator
- main pole
- motor
- phases
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- 238000004080 punching Methods 0.000 claims abstract description 30
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
Abstract
The utility model is related to a kind of three-phase stepper motors, including stator punching and rotor punching, the stator punching includes nine main poles, wherein main pole U1, U2, U3 forms U phases, main pole V1, V2, V3 form V phases, main pole W1, W2, W3 form W phases, the stator punching for can 120 ° revolution stator punchings, rotor tooth in the face respective rotor punching simultaneously of each main pole stator tooth of the stator punching per phase, the circumferential position where each main pole of the stator punching per phase differ 120 °.Compared with prior art, the utility model has many advantages, such as that the output torque of motor is maximum, provides high motor operation precision, reduces the vibrating noise of motor and reduces the cost of motor.
Description
Technical field
The utility model is related to a kind of stepper motor, more particularly, to a kind of three-phase stepper motor.
Background technology
Shown in existing three-phase hybrid stepping motor structure below figure 1 and Fig. 2：
There are two types of schemes for existing three-phase stepper motor, and one structure of scheme is as shown in Figure 1, two structure of scheme is as shown in Figure 2.
In scheme one and scheme two, stator punching 1 is made of 9 main poles, and wherein main pole U1, U2, U3 forms U phases, and V1, V2, V3 form V
Phase, W1, W2, W3 form W phases.It it is 5 per main pole stator tooth 3, the rotor tooth 4 of rotor punching 2 is 50, the step of three-phase stepper motor
Elongation is 1.2 °.
In scheme one, 9 main poles of stator are evenly distributed with, and 9 main pole centerlines are 40 °, in this structure, U, V, W three-phase
Main pole can connect together respectively, U1, U2, U3 are adjacent, occupy 120 °, V, W phase main pole are also such.Such benefit is stator punching
Piece can be turned round according to the multiple of 40 ° of angles, the influence of the process bands of reduction.But because adjacent per phase main pole, U1,
U2, U3 cannot simultaneously face rotor tooth, when Vector modulation have reductions, motor is caused to be contributed reduction, meanwhile, this structure is in electricity
When machine works, the stress of motor is asymmetric, is not zero with joint efforts, and motor operation precision can be caused to be deteriorated, and motor vibrating noise is larger.
In scheme two, 9 main pole asymmetry of stator, U1, U2, U3 face rotor tooth respectively, Vector modulation be U1,
The algebraical sum of U2, U3, at this time motor contribute maximum, simultaneously because motor per circumferential angle difference where phase main pole at 120 ° or so,
Stress almost symmetry when motor works, the suffered resultant force of motor is substantially zeroed, and motor precision improves, and vibrating noise reduces.But by
Asymmetric in all main poles of motor, motor stator punching can not turn round, and the influence of technique can not be eliminated substantially, can lead to technique
Unstability and production cost are significantly increased.
Utility model content
The purpose of this utility model is exactly to provide a kind of three-phase stepping to overcome the problems of the above-mentioned prior art
Motor.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of three-phase stepper motor, including stator punching and rotor punching, the stator punching includes nine main poles,
Middle main pole U1, U2, U3 form U phases, and main pole V1, V2, V3 form V phases, and main pole W1, W2, W3 form W phases, the stator punching
For can 120 ° of revolutions stator punchings, each main pole stator tooth of the stator punching per phase is simultaneously in face respective rotor punching
Rotor tooth, the stator punching per phase each main pole where circumferential position differ 120 °.
Preferably, the main pole position of the U phases, V phases and W phases is as follows：
U phase main poles：
V phase main poles：
W phase main poles：
Wherein NrFor number of teeth of motor rotor, value is 9 multiple；N is 0-NrBetween natural number.
Preferably, the NrIt is 9 multiple within 200.
Preferably, it is described
Preferably, it is described
The value of U phase main poles position N：
The value of V phase main poles position N：
The value of W phase main poles position N：
Preferably, the stator number of teeth is identical with the rotor number of teeth.
Compared with prior art, the utility model has the following advantages：
(1) stator punching can 120 ° of revolutions, significantly reduce technology difficulty, ensure that the manufacturability of motor and reliable
Property, while also reduce the cost of motor.
(2) face rotor tooth, the output torque of motor are maximum simultaneously for energy on each main pole of stator three-phase
(3) each main pole of the stator per phase is circumferentially uniformly distributed, and when motor works, is zero with joint efforts, is provided high motor
Running precision reduces the vibrating noise of motor.
Description of the drawings
Fig. 1 is the structure diagram of existing three-phase hybrid stepping motor scheme one；
Fig. 2 is the structure diagram of existing three-phase hybrid stepping motor scheme two；
Fig. 3 is the electric machine structure schematic diagram of embodiment 1；
Fig. 4 is the electric machine structure schematic diagram of embodiment 2；
Fig. 5 is the electric machine structure schematic diagram of embodiment 3；
Fig. 6 is the electric machine structure schematic diagram of embodiment 4；
Fig. 7 is the electric machine structure schematic diagram of embodiment 5；
Fig. 8 is the electric machine structure schematic diagram of embodiment 6.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that described embodiment is the part of the embodiment of the utility model rather than all implements
Example.Based on the embodiment in the utility model, those of ordinary skill in the art institute under the premise of creative work is not made
The every other embodiment obtained should all belong to the range of the utility model protection.
The technical solution of the utility model meets claimed below：
(a) for the technique manufacturability of increased motor, the production cost of motor is reduced, this requires motor stator rushes
Piece can turn round；
(b) to ensure that motor output does not reduce in design, this requires motors at work, each main pole energy per phase
Face rotor tooth simultaneously；
(c) when ensureing motor work, suffered resultant force is zero, it is desirable to the position of circumference where each main pole of each phase of motor
Put 120 ° of difference；
In 9 main pole stepper motor of three-phase, each phase electrodes of motor position is as follows：
U phase main poles position：
V phase main poles position：
W phase main poles position：
Nr：Number of teeth of motor rotor
N：0、1、2…Nr
To realize (a), (b), (c) simultaneously, three main poles of U phases are inevitable on 0 ° of circumferencial direction, 120 °, 240 ° of positions,
At this moment just have：
It can be obtained by (5)：Nr=3N---------------------------------------------------
(7)
It can be obtained by (6)：
By (7) and (8) it is found that rotor number N of teethrNecessarily 3 multiple.
Meanwhile three-phase stepper motor will can normal operation, the electrical angle between U, V, W three-phase must be 120 °
Electrical angle between the adjacent main pole of U phases is：
120·Nr-------------------------------------------------(9)
U, phase angle difference is 120 ° between V, W, according to (9), is had
It can be obtained by (10),
Nr=9N-------------------------------------------------- (11)
By (11) it is found that realizing the 9 main pole stepper motor of three-phase of (a), (b), (c) simultaneously, the rotor number of teeth is necessary for 9 times
Number, the stator number of teeth can be designed identical with the rotor number of teeth at this time, and stator punching can be with 120 ° big revolution.
As the above analysis, in this three-phase stepper motor, U, V, W main pole position are as follows：
U phase main poles：
V phase main poles：
W phase main poles：
Wherein：
Nr=9,18,27,36,45,54,63,72,81,90,99 ...
NrFor 9 multiple, practical due to the requirement of process mould, value is more suitable within 200 teeth.
The value of U phase main poles position N：
The value of V phase main poles position N：
The value of W phase main poles position N：
Embodiment 1
As shown in figure 3, Nr=18, i.e. 18 tooth of rotor, 18 tooth of stator, during 3.3333 ° of stepping angle：Position per mutually each main pole
It is specific as shown in table 1；
Table 1
Embodiment 2
As shown in figure 4, Nr=27, i.e. 27 tooth of rotor, 27 tooth of stator, during 2.2222 ° of stepping angle：Position per mutually each main pole
It is specific as shown in table 2；
Table 2
Embodiment 3
As shown in figure 5, Nr=36, i.e. 36 tooth of rotor, 36 tooth of stator, during 1.6667 ° of stepping angle：Position per mutually each main pole
It is specific as shown in table 3；
Table 3
Embodiment 4
As shown in fig. 6, Nr=45, i.e. 45 tooth of rotor, 45 tooth of stator, during 1.3333 ° of stepping angle：Position per mutually each main pole
It is specific as shown in table 4；
Table 4
Embodiment 5
As shown in fig. 7, Nr=54, i.e. 54 tooth of rotor, 54 tooth of stator, during 1.1111 ° of stepping angle：Position per mutually each main pole
It is specific as shown in table 5；
Table 5
Embodiment 6
As shown in figure 8, Nr=63, i.e. 63 tooth of rotor, 63 tooth of stator, during 0.9524 ° of stepping angle：Position per mutually each main pole
It is specific as shown in table 6；
Table 6
The above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, in the technical scope that any one skilled in the art discloses in the utility model, can readily occur in various
Equivalent modifications or substitutions, these modifications or substitutions should be covered within the scope of the utility model.Therefore, this practicality
Novel protection domain should be subject to the protection scope in claims.
Claims (6)
1. a kind of three-phase stepper motor, including stator punching and rotor punching, the stator punching includes nine main poles, wherein
Main pole U1, U2, U3 form U phases, and main pole V1, V2, V3 form V phases, and main pole W1, W2, W3 form W phases, which is characterized in that described
Stator punching for can 120 ° revolution stator punchings, the stator punching per phase each main pole stator tooth simultaneously face correspond to turn
Rotor tooth in sub- punching, the circumferential position where each main pole of the stator punching per phase differ 120 °.
A kind of 2. three-phase stepper motor according to claim 1, which is characterized in that the main pole of the U phases, V phases and W phases
Position is as follows：
U phase main poles：
V phase main poles：
W phase main poles：
Wherein NrFor number of teeth of motor rotor, value is 9 multiple；N is 0-NrBetween natural number.
A kind of 3. three-phase stepper motor according to claim 2, which is characterized in that the NrIt is times of 9 within 200
Number.
4. a kind of three-phase stepper motor according to claim 2, which is characterized in that described
5. a kind of three-phase stepper motor according to claim 4, which is characterized in that described
The value of U phase main poles position N：
The value of V phase main poles position N：
The value of W phase main poles position N：
6. a kind of three-phase stepper motor according to claim 1, which is characterized in that the stator number of teeth and the rotor number of teeth
It is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721398327.4U CN207490627U (en) | 2017-10-26 | 2017-10-26 | Three-phase stepper motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721398327.4U CN207490627U (en) | 2017-10-26 | 2017-10-26 | Three-phase stepper motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207490627U true CN207490627U (en) | 2018-06-12 |
Family
ID=62477703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721398327.4U Withdrawn - After Issue CN207490627U (en) | 2017-10-26 | 2017-10-26 | Three-phase stepper motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207490627U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713808A (en) * | 2017-10-26 | 2019-05-03 | 上海鸣志电器股份有限公司 | A kind of three-phase stepper motor |
-
2017
- 2017-10-26 CN CN201721398327.4U patent/CN207490627U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713808A (en) * | 2017-10-26 | 2019-05-03 | 上海鸣志电器股份有限公司 | A kind of three-phase stepper motor |
| CN109713808B (en) * | 2017-10-26 | 2024-02-23 | 上海鸣志电器股份有限公司 | Three-phase stepping motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180612 Effective date of abandoning: 20240223 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180612 Effective date of abandoning: 20240223 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |