CN206099681U - Stator punching sheet, stator core, and motor - Google Patents
Stator punching sheet, stator core, and motor Download PDFInfo
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- CN206099681U CN206099681U CN201621144137.5U CN201621144137U CN206099681U CN 206099681 U CN206099681 U CN 206099681U CN 201621144137 U CN201621144137 U CN 201621144137U CN 206099681 U CN206099681 U CN 206099681U
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- stator
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- stator punching
- portion width
- cogging torque
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Abstract
The utility model discloses a stator punching sheet, stator core, and motor. This stator compares for 0.5 to 0.7 towards the yoke portion width of piece and tooth portion width, and/or, the stator is 115 to 125 towards the tooth boots angle of piece. The utility model provides a stator through the optimization to its size, can effectively reduce the torque of motor tooth's socket towards the piece to promote motor control accuracy, response speed and the positioning accuracy who adopts it greatly.
Description
Technical field
This utility model is related to machine field, relates more specifically to a kind of stator punching that can effectively reduce cogging torque
Piece, stator core and motor.
Background technology
Cogging torque is the intrinsic property of magneto, and it is in the state of armature winding no power, to be produced by permanent magnet
Raw magnetic field acts on the torque of circumferencial direction generation with the teeth groove of stator core.Its generation comes from permanent magnet and armature tooth
Between tangential force, making the rotor of magneto has a kind of trend alignd with stator along a certain specific direction, it is intended to will turn
Son is positioned at some positions, a kind of oscillating torque that thus trend is produced.
Cogging torque can make motor torque fluctuate, and produce vibration and noise, the fluctuation of speed occur, prevent motor from steadily transporting
OK, the performance of motor is affected.Motor is set to produce undesirable vibration and noise simultaneously.Therefore, cogging torque is that servomotor sets
One of meter most critical parameters, directly affect smart, accurate, the fast characteristic of servomotor, and cogging torque is less, control more accurate, position
Positioning more accurate, response speed is faster.And servomotor applies in the automation equipments such as lathe, mechanical hand, robot to this
Characteristic requirements are higher, therefore exploitation low cogging torque motor becomes servomotor industry key technical problems.
Utility model content
In view of this, this utility model provides a kind of stator punching that can reduce cogging torque, stator core and motor.
A kind of first aspect, there is provided stator punching.
A kind of stator punching, the yoke portion width of the stator punching is 0.5 to 0.7 with the ratio of teeth portion width, and/or, institute
The tooth boots angle for stating stator punching is 115 ° to 125 °.
Preferably, the inner circle radius of the stator punching and the ratio of exradius are 0.5 to 0.55.
Preferably, the width of rebate of the stator punching is 0.15 to 1.3mm.
Preferably, the notch of stator punching size in the radial direction thereof is 0.3 to 0.5mm.
A kind of second aspect, there is provided stator core.
A kind of stator core, the stator core is overrided to form vertically by multiple stator punchings as above.
Preferably, the stator punching is along the circumferential direction spliced by polylith punching monomer.
A kind of third aspect, there is provided motor.
A kind of motor, including stator core as above.
The stator punching that this utility model is provided, by the optimization to its size, can effectively reduce motor cogging torque,
So as to greatly promote motor control precision using it, response speed and positioning precision.
The stator core that this utility model is provided is overrided to form by said stator punching, can effectively be reduced motor teeth groove and be turned
Square, so as to greatly promote motor control precision using it, response speed and positioning precision.
The motor that this utility model is provided is because using above-mentioned stator core, the teeth groove that can effectively reduce motor turns
Square, greatly improves control accuracy, response speed and positioning precision.
Description of the drawings
By referring to the drawings to the description of this utility model embodiment, of the present utility model above-mentioned and other mesh
, feature and advantage will be apparent from, in the accompanying drawings：
Fig. 1 illustrates the structural representation of the stator punching that this utility model specific embodiment is provided；
Fig. 2 illustrates the stator laminating structure parameter mark schematic diagram that this utility model specific embodiment is provided；
Fig. 3 is the partial enlarged drawing of part A in Fig. 2.
In figure, 1, teeth portion；11st, tooth boots；2nd, yoke portion；3rd, punching monomer.
Specific embodiment
This utility model is described below based on embodiment, but this utility model is not restricted to these enforcements
Example.Below to detailed description of the present utility model in, it is detailed to describe some specific detail sections.To people in the art
Without these details the description of part can also completely understand this utility model for member.It is of the present utility model in order to avoid obscuring
Essence, the not narration in detail of known method, process, flow process, element.
Additionally, it should be understood by one skilled in the art that provided herein accompanying drawing is provided to descriptive purpose, and
What accompanying drawing was not necessarily drawn to scale.
Unless the context clearly requires otherwise, otherwise entire disclosure is similar with " including " in claims, "comprising" etc.
Word should be construed to the implication for including rather than exclusive or exhaustive implication；That is, be " including but not limited to " contains
Justice.
In description of the present utility model, it is to be understood that term " first ", " second " etc. are only used for describing purpose,
And it is not intended that indicating or implying relative importance.Additionally, in description of the present utility model, it is unless otherwise stated, " many
It is individual " it is meant that two or more.
This utility model provide a kind of stator punching method for designing and using the method design stator punching and
Stator core, can effectively reduce the cogging torque of motor.
The method for designing includes：
Step S001, the structural parameters for determining the stator punching for affecting cogging torque；
Step S002, Jing simulation flowchart determines the design load of the structural parameters obtained in step S001；
Step S003, the design load design stator punching obtained according to step S002.
Specifically, stator punching is designed can reduce cogging torque, then firstly the need of being determined to shadow
Ringing the structural parameters of the stator punching of cogging torque has which.As shown in Figures 2 and 3, the structural parameters of stator punching include
There are ratio v1, teeth portion length d3, tooth boots angle θ, the inner circle half of yoke portion width d2, teeth portion width d1, yoke portion width and teeth portion width
Ratio v2, the width of rebate d4 of footpath r, exradius R, inner circle radius and exradius and notch in stator punching radially
Size d5 etc..
In step S001, it is determined that affecting the structural parameters of the stator punching of cogging torque specifically, selecting structure ginseng
Number, when the change structural parameters, and other structures parameter keep constant, if the variable quantity of motor cogging torque is higher than default change
Change amount, then judge the structural parameters as the structural parameters of motor cogging torque are affected, i.e. when the change of the structural parameters can draw
Just assert that it is the structural parameters for affecting motor cogging torque when playing cogging torque larger change, if during structural parameters change
The change of cogging torque is less, namely impact of the structural parameters to cogging torque is less, then it is assumed that it is not to affect motor tooth
The structural parameters of groove torque.
Impact herein to cogging torque it is larger it is less be it is relative, can be according to the applied environment of stator punching to default change
Change amount is configured, when stator punching design accuracy require it is higher, when the application scenarios of motor are higher to its performance requirement, can
By default variable quantity arrange it is a little bit smaller, it is determined that impact motor cogging torque structural parameters it is more, set so as to meet
Meter requirement, conversely, when the design accuracy requirement of stator punching is relatively low, when the application scenarios of motor are relatively low to its performance requirement, can
By default variable quantity arrange it is big a bit, it is determined that impact motor cogging torque structural parameters it is accordingly a little less.
For example, in one embodiment, determine yoke portion width with the ratio v1 of teeth portion width to affect motor cogging torque
Structural parameters；In another embodiment, determine that tooth boots angle θ is the structural parameters for affecting motor cogging torque；At another
In embodiment, determine that yoke portion width is that the structure for affecting motor cogging torque is joined with the ratio v1 and tooth boots angle θ of teeth portion width
Number；In yet another embodiment, ratio v1, tooth boots angle θ, inner circle radius and the exradius of yoke portion width and teeth portion width are determined
Ratio v2, width of rebate d4 and notch size d5 radially of stator punching be affect motor cogging torque structure
Parameter.Wherein, yoke portion width refers to the size diametrically of yoke portion 2, and teeth portion width is teeth portion 1 vertical with its axially symmetric axle
Direction on size, tooth boots angle is the angle between tooth boots 11 and teeth portion 1, and notch refers to what is formed between adjacent two teeth boots 11
Gap.
Further, Jing simulation flowcharts determine the design load of the structural parameters obtained in step S001 in step S002
Specifically, in simulation flowchart, selecting in the structural parameters that step S001 determines, change the number of the structural parameters
Value and holding other structures parameter, obtain the corresponding cogging torque of different numerical value from the structural parameters, by least cogging torque
Corresponding numerical value is defined as the design load of the structural parameters.
In a specific embodiment, the structural parameters of the impact motor cogging torque determined in step S001 are to determine
Yoke portion width and the ratio v1 and tooth boots angle θ of teeth portion width, then in simulation flowchart, select first yoke portion width and tooth
The ratio v1 of portion's width, changes ratio v1, and holding tooth boots angle θ is constant, and the result for obtaining is as shown in table 1.
The cogging torque of minimum extremely can be obtained in that when the ratio v1 of yoke portion width and teeth portion width is 0.6 by table 1,
Therefore the design load of yoke portion width and the ratio v1 of teeth portion width is defined as into 0.6.
Table 1：
Then tooth boots angle θ is selected, is changed tooth boots angle θ and retention yoke portion width is constant with the ratio v1 of teeth portion width, obtained
Result it is as shown in table 2.
Table 2：
As shown in Table 2, the cogging torque of minimum is obtained in that when tooth boots angle θ is 120 °, therefore by the design of tooth boots angle θ
Value is defined as 120 °.
Further, the design load design stator punching for being obtained according to step S002 in step S003 is specifically, by stator
The structural parameters of the impact cogging torque of punching are set to the design load obtained in step S002, and other structures parameter is routinely
Numerical value is arranged, and for example, it is first determined the size of teeth portion width d1, the size of d1 needs to meet Rated motor operation and three
Times overlond running, it is reasonable that the close design load of teeth portion magnetic is needed, and the close design load of teeth portion magnetic is too low to affect iron core utilization, and teeth portion magnetic is close to be set
Evaluation is too high to cause motor temperature rise and overload capacity to meet, it is preferable that teeth portion width d1 is designed as into 6.4mm, so
Determine that yoke portion width d2 is 3.84mm according to the ratio 0.6 of yoke portion width and teeth portion width afterwards.It is understood that due to being added
The impact of work precision, processing Discussing Convenience etc., the structural parameters of stator punching not necessarily have to be with the design of acquisition in step S002
Value is identical, as long as in certain scope, disclosure satisfy that performance requirement so that production cost reaches with motor performance
Balance.For example, in a specific embodiment, the ratio v1 of yoke portion width and teeth portion width is set to into 0.5 to 0.7, will
Tooth boots angle θ is set to 115 ° to 125 °.
Further, can also determine that the inner circle radius of stator punching are 0.5 with the ratio v2 of exradius by above-mentioned method
To 0.55, width of rebate d4 be 0.15 to 1.3 and notch is 0.3 to 0.5 in size d5 radially of stator punching, its
In, inner circle radius and exradius can be according to motor speed and inertia Demand Designs.
In example is further carried out, using the stator punching of said method design as shown in figure 1, including yoke portion 2, teeth portion
1 and tooth boots 11.The ratio v1 of its yoke portion width and teeth portion width is 0.5 to 0.7, and tooth boots angle θ is 115 ° to 125 °, inner circle radius with
The ratio v2 of exradius is 0.5 to 0.55, and width of rebate d4 is 0.15 to 1.3mm, and notch size d5 in the radial direction thereof is 0.3
To 0.5mm.
It is further preferred that yoke portion width is 0.6 with the ratio v1 of teeth portion width, tooth boots angle θ is 120 °.
It is understood that when diametrically width is inconsistent for the teeth portion 1 of stator punching, can by its minimum widith or
Mean breadth is designed as teeth portion width, likewise, when the width when yoke portion 2 in the circumferential is inconsistent, can be minimum by it
Width or mean breadth are designed as yoke portion width.
It is further preferred that stator punching is along the circumferential direction spliced by polylith punching monomer 3, stator is further facilitated
The processing of iron core.Positioning convex can be passed through between adjacent punching monomer 3 and connection is realized in the cooperation of detent.
Further provide for a kind of stator core, stator core laminated vertically by multiple stator punchings as above and
Into facilitating the processing of stator core.
Further, this utility model additionally provides a kind of motor, using above-mentioned stator core, can effectively reduce electricity
The cogging torque of machine, and then greatly improve control accuracy, response speed and the positioning precision of motor.
Those skilled in the art is it is easily understood that on the premise of not conflicting, above-mentioned each preferred version can be free
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is only illustrative, and not restrictive, without departing from of the present utility model
In the case of ultimate principle, those skilled in the art can be directed to various obvious or equivalent the modification that above-mentioned details is made
Or replace, all it is included in right of the present utility model.
Claims (7)
1. a kind of stator punching, it is characterised in that the yoke portion width of the stator punching is 0.5 to 0.7 with the ratio of teeth portion width,
And/or, the tooth boots angle of the stator punching is 115 ° to 125 °.
2. stator punching according to claim 1, it is characterised in that the yoke portion width of the stator punching and teeth portion width
Ratio be 0.6, and/or, the tooth boots angle of the stator punching is 120 °.
3. stator punching according to claim 1, it is characterised in that the inner circle radius and exradius of the stator punching
Ratio be 0.5 to 0.55.
4. stator punching according to claim 1, it is characterised in that the width of rebate of the stator punching be 0.15 to
1.3mm。
5. stator punching according to claim 1, it is characterised in that the notch of stator punching chi in the radial direction thereof
Very little is 0.3 to 0.5mm.
6. a kind of stator core, it is characterised in that the stator core is by multiple stators as described in any one of claim 1 to 5
Punching is overrided to form vertically.
7. a kind of motor, it is characterised in that including stator core as claimed in claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621144137.5U CN206099681U (en) | 2016-10-21 | 2016-10-21 | Stator punching sheet, stator core, and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621144137.5U CN206099681U (en) | 2016-10-21 | 2016-10-21 | Stator punching sheet, stator core, and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206099681U true CN206099681U (en) | 2017-04-12 |
Family
ID=58484591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621144137.5U Active CN206099681U (en) | 2016-10-21 | 2016-10-21 | Stator punching sheet, stator core, and motor |
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| Country | Link |
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| CN (1) | CN206099681U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329852A (en) * | 2016-10-21 | 2017-01-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator punching sheet design method, stator punching sheet, stator iron core and motor |
| CN109104004A (en) * | 2018-09-25 | 2018-12-28 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of stator and the motor with it |
| CN110768404A (en) * | 2018-07-27 | 2020-02-07 | 广东美芝制冷设备有限公司 | Stator for motor, permanent magnet motor with same and compressor |
| CN110768402A (en) * | 2018-07-27 | 2020-02-07 | 广东美芝制冷设备有限公司 | Permanent magnet motor and compressor with same |
-
2016
- 2016-10-21 CN CN201621144137.5U patent/CN206099681U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329852A (en) * | 2016-10-21 | 2017-01-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator punching sheet design method, stator punching sheet, stator iron core and motor |
| CN110768404A (en) * | 2018-07-27 | 2020-02-07 | 广东美芝制冷设备有限公司 | Stator for motor, permanent magnet motor with same and compressor |
| CN110768402A (en) * | 2018-07-27 | 2020-02-07 | 广东美芝制冷设备有限公司 | Permanent magnet motor and compressor with same |
| CN110768402B (en) * | 2018-07-27 | 2021-11-02 | 广东美芝制冷设备有限公司 | Permanent magnet motor and compressor with same |
| CN109104004A (en) * | 2018-09-25 | 2018-12-28 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of stator and the motor with it |
| CN109104004B (en) * | 2018-09-25 | 2024-04-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Stator and motor with same |
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