CN208691018U - A kind of takeup type variable frequency motor stator iron core - Google Patents
A kind of takeup type variable frequency motor stator iron core Download PDFInfo
- Publication number
- CN208691018U CN208691018U CN201821363212.6U CN201821363212U CN208691018U CN 208691018 U CN208691018 U CN 208691018U CN 201821363212 U CN201821363212 U CN 201821363212U CN 208691018 U CN208691018 U CN 208691018U
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- iron core
- circular arc
- variable frequency
- frequency motor
- motor stator
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- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model discloses a kind of takeup type variable frequency motor stator iron cores, belong to motor stator core technical field, stator core ontology including coiling and molding, stator core ontology includes yoke portion (1) and teeth portion (2), stator core ontology has multiple slots (3), the one end of the yoke portion (1) far from slot (3) is arc surface, the slot (3) has two first planar portions (32) for being located in the middle the first circular arc facial (31) and being located at facial (31) two sides of the first circular arc close to the one end in yoke portion, first circular arc face (31) and the first planar portions (32) are adjacent；After the utility model yoke portion is stamping, the outer end of iron core is easier to make the stator core of sipes in winding process at circle, and arcuate structure required for keeping prevents iron core from deforming.
Description
Technical field
The utility model belongs to motor stator core technical field, and in particular to a kind of takeup type variable frequency motor stator iron
Core.
Background technique
In current motor stator core manufacturing field, industry has had the energy of production takeup type multiple-grooved narrow slot stator core
Power, the Chinese utility model patent for being 204290517 U of CN referring to Authorization Notice No. still, in industry still fail production winding
Formula lacks groove width slot stator core.Current variable frequency motor stator is mostly centralized winding, and few groove width slot stator core still uses single-row
Or the sets such as multiple row rush progressive die, are formed by complete punching complex superposition, each punching is opened according to the sheet of material of whole Zhang Tiexin
Material, is gone out, the bore section of punching disposably goes out rotor, and rotor material consistent with stator must be covered by compound die one-pass molding
Punching, and stator slot inner part is also waste material, the utilization rate of raw material is in 60-65% or so.
Variable frequency motor stator is mostly centralized winding, and few groove width slot stator core still cannot be using the original of takeup type production
Cause: in winding process, since slot number is lacked, groove width is big, and yoke portion is easily deformed, and yoke portion outer end is not easy into circle, causes to produce
Stator core is not able to satisfy quality requirement.
Utility model content
The utility model is mostly centralized winding, few groove width slot motor for the variable frequency motor stator of existing takeup type production
Stator core is not able to satisfy the technical issues of quality requirement, provides a kind of takeup type variable frequency motor stator iron core, avoids or reduces
The yoke portion deformation of stator core and the non-round problem in the yoke portion outer end that occurs, improve the quality of stator core.Few groove width slot is main
Refer to slot number≤12, groove width and iron core diameter's ratio are >=10%.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of takeup type variable frequency motor stator iron core,
Stator core ontology including coiling and molding, stator core ontology include yoke portion and teeth portion, and stator core ontology has multiple slots,
The slot has close to the one end in yoke portion is located in the middle the first circular arc face and positioned at two of the first circular arc face two sides the
One planar portions, the first circular arc face and the first planar portions are adjacent；The one end of the yoke portion far from slot is arc surface.
The stator core of the utility model, slot have the first circular arc face and the first planar portions close to the one end in yoke portion,
Only there is circular arc face not have planar portions at the position compared with prior art, so that yoke portion is closer in the radial dimension of groove location
Unanimously, outer end is easier into circle after the deformation of yoke portion；The one end of yoke portion far from slot is arc surface, removes stacked mounting hole, protects
Demonstrate,prove minimum yoke portion's size circle molding.
As an improvement, the slot bilateral symmetry, such uniform force.
As an improvement, the side junction of first planar portions and teeth portion is set as circular arc, uniform force is gentle.
As an improvement, the inner end of the teeth portion has the second circular arc face and positioned at the two second of the second circular arc face two sides
Planar portions.It, will be so that teeth portion inner end if teeth portion inner end is plane as existing multiple-grooved narrow slot since teeth portion inner end size is larger
It is larger with round difference.
As an improvement, the second circular arc face and the second planar portions are connected by third circular arc face.
As an improvement, the side of the teeth portion and the protrusion round-corner transition of teeth portion, the left and right part of the protrusion and front and rear part
Round-corner transition.
As an improvement, angle is less than greater than 90 ° between the front and rear part of the protrusion of the teeth portion and the second planar portions of teeth portion
120°。
As an improvement, slot number≤12 of the teeth portion, groove width/iron core diameter's ratio >=10%.
As an improvement, the stator core is external stator core.
As an improvement, the stator core ontology is wound by billot, in adjacent stator core ontology, setting is used
In the button point being fixed to each other.The billot is stamped to form by the mode of plugging each other, and is stamped and formed out two in same rectangle steel on piece
Billot improves stock utilization.
The beneficial effects of the utility model are: slot has the first circular arc face and the first planar portions close to the one end in yoke portion,
Only there is circular arc face not have planar portions at the position compared with prior art, so that yoke portion is closer in the radial dimension of groove location
Unanimously, outer end is easier into circle after the deformation of yoke portion；The one end of yoke portion far from slot is arc surface, without reserving sky needed for mounting hole
Between, guarantee yoke portion size at round, flux density when guaranteeing motor operation is unaffected, then ensures that motor performance is unaffected；
Waste of material is reduced, stock utilization is improved.
Detailed description of the invention
Fig. 1 is a kind of top view of takeup type variable frequency motor stator iron core of the utility model.
Fig. 2 is the partial enlarged view in Fig. 1 at A.
Fig. 3 is the partial enlarged view in Fig. 1 at B.
Fig. 4 is structural schematic diagram after a kind of production billot punching press of takeup type variable frequency motor stator iron core of the utility model.
Attached drawing mark explanation: 1, yoke portion, 2, teeth portion, 21, side, the 22, second circular arc face, the 23, second planar portions, 24,
Third circular arc face, 25, protrusion, 3, slot, the 31, first circular arc face, the 32, first planar portions.
Specific embodiment
Below with reference to the attached drawing of the utility model embodiment, the technical solution of the utility model embodiment is explained and
Illustrate, but following embodiments are only the preferred embodiment of the utility model, and not all.Based on the implementation example in the implementation mode,
Those skilled in the art's other embodiments obtained without making creative work, belong to the utility model
Protection scope.
Referring to Fig. 1 to Fig. 4, a kind of takeup type variable frequency motor stator iron core, the stator core ontology including coiling and molding is determined
Sub- core body includes yoke portion and teeth portion, and stator core ontology has multiple slots, and the one end of the yoke portion far from slot is arc surface,
The slot has close to the one end in yoke portion is located in the middle the first circular arc face and positioned at the two first of the first circular arc face two sides
Planar portions, the first circular arc face and the first planar portions are adjacent.
The stator core of the utility model, slot have the first circular arc face and the first planar portions close to the one end in yoke portion,
Only there is circular arc face not have planar portions at the position compared with prior art, so that yoke portion is closer in the radial dimension of groove location
Unanimously, outer end is easier into circle after the deformation of yoke portion；The one end of yoke portion far from slot is arc surface, removes stacked mounting hole, protects
Demonstrate,prove minimum yoke portion's size circle molding.
Embodiment one: referring to Fig. 1 to Fig. 4, a kind of takeup type variable frequency motor stator iron core, the stator iron including coiling and molding
Core ontology, stator core ontology include yoke portion 1 and teeth portion 2, and stator core ontology has multiple slots 3, and the yoke portion 1 is far from slot 3
One end be arc surface, the slot 3 close to yoke portion 1 one end have is located in the middle the first circular arc face 31 and be located at first circle
Two first planar portions 32 of 31 two sides of cambered surface portion, the first circular arc face 31 and the first planar portions 32 are adjacent, the slot 3 or so
Symmetrically, such uniform force.21 round-corner transition of side of first planar portions 32 and teeth portion 2, uniform force is gentle, such as fillet
It is set as 90 °.
As shown in Figure 2 and Figure 3, the inner end of teeth portion 2 has the second circular arc face 22 and positioned at facial 22 two sides of the second circular arc
Two second planar portions 23.Since 2 inner end size of teeth portion is larger, if 2 inner end of teeth portion is plane as existing multiple-grooved narrow slot, will make
It obtains 2 inner end of teeth portion and round difference is larger.Second circular arc face 22 is connected with the second planar portions 23 by third circular arc face 24.
First circular arc face 31 and facial 22 centers of circle of the second circular arc are inside.The side 21 of teeth portion 2 and 25 round-corner transition of protrusion of teeth portion 2,
The left and right part and front and rear part round-corner transition of the protrusion 25.The front and rear part of the protrusion 25 of teeth portion 2 and the second planar portions 23 of teeth portion 2
Between angle be greater than 90 ° less than 120 °.The slot number of teeth portion 2 be less than or equal to 12, groove width/iron core diameter's ratio be more than or equal to
10%.Specifically, slot number is 9 in the present embodiment.
As shown in Figure 1, stator core is external stator core.
Referring to fig. 4, the stator core ontology of the utility model is wound by billot, and billot is rushed by the mode of plugging each other
It presses, is stamped and formed out two billots in same rectangle steel on piece, improves stock utilization.
As shown in Figure 1, the button point 11 for being fixed to each other is set in stator core ontology, on the steel disc of adjacent two panels,
The steel disc that button point 11 can wind adjacent two panels, is fixed so that it is convenient to quickly, reduce the step of welding by pressure setting
Suddenly.
Embodiment two: embodiment two and the difference of embodiment one are that stator core is inner-stator iron core.
Correspondingly, the first circular arc face and the second circular arc face center of circle are outside.
Embodiment two is identical as the other structures of embodiment one and effect, and this will not be repeated here.
The utility model embodiment is explained in detail above in conjunction with attached drawing, but the utility model is not limited to
Embodiment is stated, to those skilled in the art, can also be made under the premise of not departing from the utility model several
Variations and modifications, these also should be regarded as belonging to the protection scope of the utility model.
Claims (10)
1. a kind of takeup type variable frequency motor stator iron core, the stator core ontology including coiling and molding, stator core ontology include
Yoke portion (1) and teeth portion (2), stator core ontology have multiple slots (3), it is characterised in that: the slot (3) is close to yoke portion (1)
One end has two the first planar portions for being located in the middle the first circular arc facial (31) and being located at facial (31) two sides of the first circular arc
(32), first circular arc facial (31) and the first planar portions (32) are adjacent；The one end of the yoke portion (1) far from slot (3) is circle
Cambered surface.
2. a kind of takeup type variable frequency motor stator iron core according to claim 1, it is characterised in that: slot (3) left and right
Symmetrically.
3. a kind of takeup type variable frequency motor stator iron core according to claim 1, it is characterised in that: first planar portions
(32) circular arc is set as with side (21) junction of teeth portion (2).
4. a kind of takeup type variable frequency motor stator iron core according to claim 1, it is characterised in that: the teeth portion (2)
Inner end has the second circular arc facial (22) and is located at two second planar portions (23) of facial (22) two sides of the second circular arc.
5. a kind of takeup type variable frequency motor stator iron core according to claim 4, it is characterised in that: second arc surface
Portion (22) is connected with the second planar portions (23) by third circular arc facial (24).
6. a kind of takeup type variable frequency motor stator iron core according to claim 4, it is characterised in that: the teeth portion (2)
The protrusion round-corner transition of side (21) and teeth portion (2), the left and right part and front and rear part round-corner transition of the protrusion.
7. a kind of takeup type variable frequency motor stator iron core according to claim 6, it is characterised in that: the teeth portion (2)
Angle is greater than 90 ° less than 120 ° between the front and rear part of protrusion and the second planar portions (23) of teeth portion (2).
8. a kind of takeup type variable frequency motor stator iron core according to claim 1, it is characterised in that: the teeth portion (2)
Slot number≤12, slot (3) is wide/and iron core diameter's ratio is >=10%.
9. a kind of takeup type variable frequency motor stator iron core according to claim 1, it is characterised in that: the stator core is
External stator core.
10. a kind of takeup type variable frequency motor stator iron core according to any one of claim 1 to 9, it is characterised in that:
In adjacent stator core ontology, the button point (11) for being fixed to each other is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821363212.6U CN208691018U (en) | 2018-08-23 | 2018-08-23 | A kind of takeup type variable frequency motor stator iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821363212.6U CN208691018U (en) | 2018-08-23 | 2018-08-23 | A kind of takeup type variable frequency motor stator iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208691018U true CN208691018U (en) | 2019-04-02 |
Family
ID=65886624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821363212.6U Active CN208691018U (en) | 2018-08-23 | 2018-08-23 | A kind of takeup type variable frequency motor stator iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208691018U (en) |
-
2018
- 2018-08-23 CN CN201821363212.6U patent/CN208691018U/en active Active
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