CN203261139U - Stator punching sheet, stator core and motor - Google Patents
Stator punching sheet, stator core and motor Download PDFInfo
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- CN203261139U CN203261139U CN 201320201629 CN201320201629U CN203261139U CN 203261139 U CN203261139 U CN 203261139U CN 201320201629 CN201320201629 CN 201320201629 CN 201320201629 U CN201320201629 U CN 201320201629U CN 203261139 U CN203261139 U CN 203261139U
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- 238000004080 punching Methods 0.000 title claims abstract description 64
- 238000004804 winding Methods 0.000 claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 230000001174 ascending effect Effects 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 201000011180 Dental Pulp Calcification Diseases 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 241000937378 Everettia interior Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The utility model provides a stator punching sheet, stator core and motor, this stator punching sheet has yoke portion, be equipped with tooth portion in the yoke portion, wherein, be equipped with a plurality of grooves on the interior circumference of yoke portion, tooth portion be equipped with a plurality of tenons of a plurality of groove complex, tooth portion has hollow interior round hole, and be equipped with from interior round hole along a plurality of teeth of stator punching sheet radial outside extension, form the wire winding groove between two adjacent teeth, a plurality of teeth include a plurality of straight-teeth and a plurality of turn round the tooth, straight-teeth and turn round the tooth and set up at the ascending interval of circumference of tooth portion. The utility model discloses a stator punching sheet is the stator punching sheet of yoke portion and tooth portion separation, and its coiling and the embedding that are favorable to the coil coiling improve the production efficiency of motor.
Description
Technical field
The utility model relates to machine field, especially relates to a kind of motor of inner-rotor-type and has the stator punching of this motor use, the stator core that this stator punching is made.
Background technology
Motor is widely used in the various electric equipments of industrial production and life, and existing motor has stator and rotor, and armature spindle is installed in the rotor and with the rotation of rotor and rotates, and outputting power thus.
Referring to Fig. 1, the end cap 11,12 that more existing motors have housing 10 and are positioned at housing 10 two ends, housing 10 and end cap 11,12 surround a cavity, and stator 15 and rotor 18 are installed in the cavity, and stator 15 has stator core 16 and is wrapped in coil 17 on the stator core 16.Rotor 18 is installed in the stator 15, and can be with respect to stator 15 rotations.Armature spindle 19 is installed in the rotor 18, and with rotor 18 interference fit, armature spindle 19 rotates under the drive of rotor 18, thus outside outputting power.
Stator core 16 is overrided to form by the identical stator punching of multi-disc shape usually, and referring to Fig. 2, stator punching 20 is stamped to form by silicon steel sheet, and it roughly is circular, and has the yoke section 21 that is positioned at outer peripheral edges, and yoke section 21 is circular.Stator punching 20 also is provided with a plurality of teeth 22 that radially extend to the middle part of stator punching 20 along stator punching 20 from yoke section 21, forms a winding slot 23 between two adjacent teeth 22, and coil winding is on tooth 22.And the middle part of stator punching 20 arranges the interior circular hole 24 of a hollow, and after multi-disc stator punching 20 laminated and forms stator core 16, the interior circular hole 24 of stator punching 20 formed rotor hole, and rotor is installed in the rotor hole.
During stator core winding around that stator punching 20 is overrided to form, needing to twine two-layer coil, is respectively interior loop and exterior loop.Referring to Fig. 3, exterior loop 35 is wrapped in the bottom of the winding slot 33 of stator core 16, from the center of stator core 16 away from.Interior loop 36 is wrapped in winding slot 33 near the position of notches, from the center of stator core 16 close to.
Each interior loop 36 will be crossed over four winding slots 33, and each exterior loop 35 also crosses over four winding slots 33, and interior loop 36 is not wrapped on the same winding slot 33 with exterior loop 35.Yet, the winding slot 33 that twines interior loop 36 will have exterior loop 35 to cross over, and the winding slot 33 that twines exterior loop 35 also has interior loop 36, cause the distance between interior loop 36 and the exterior loop 35 very near, this proposes very high requirement to the insulation processing between interior loop 36 and the exterior loop 35, so the insulating treatment process between interior loop 36 and the exterior loop 35 is complicated.
In addition, since interior loop 36 and exterior loop 35 stator core 16 axially on overlapping, cause interior loop 36 high with the coiling difficulty of exterior loop 35, cause interior loop 36 high with the turn-to-turn fraction defective of exterior loop 35, when raising the production cost of motor, affect the job stability of motor, cause that the motor rated efficiency is low, energy consumption is large.
Behind rule, at stator core 16 notch positions enough spaces of dodging are arranged in order to satisfy adjacent two interior loop 36 or exterior loop 35, this part of will the two-phase winding coil stretching out stator core 16 is wanted long enough, and long enough is wanted in the end that is exactly interior loop 36 and exterior loop 35.Like this, the enamelled wire use amount that causes making coil increases, and also causes the energy consumption of motor large, rated efficiency is low.
And, in the existing motor manufacture process, is a plurality of coil windings of first coiling to coil around wire insertion technology, adopt again artificial or use the equipment such as coil inserting apparatus to be embedded in the stator core 16, complex procedures and automaticity are low, and because the notch of stator core is narrow, during rule easily to the enamelled wire injury.
Summary of the invention
Main purpose of the present utility model provides a kind of stator punching that is conducive to the stator coil winding of motor.
Another purpose of the present utility model provides the convenient and high stator core of efficient of a kind of coil winding.
An again purpose of the present utility model provides the motor that a kind of stator coil winding process is simple and production cost is low.
For realizing main purpose of the present utility model, the stator punching that the utility model provides comprises yoke section, be provided with tooth section in the yoke section, wherein, the inner periphery of yoke section is provided with a plurality of grooves, tooth section is provided with a plurality of tenons that cooperate with a plurality of grooves, tooth section has the interior circular hole of hollow, and is provided with a plurality of teeth that extend radially outwardly along stator punching from interior circular hole, forms winding slot between two adjacent teeth, a plurality of teeth comprise a plurality of straight-tooth and a plurality of tooth of turning round, straight-tooth with turn round tooth and arrange at the interval that makes progress in the week of tooth section.
By such scheme as seen, every a slice stator punching consists of by yoke section and tooth section, and yoke section and tooth section being connected by groove and tenon, be that yoke section removably is connected with tooth section, when coiling, can be first with coil winding in tooth section, then tooth section is installed in the yoke section, the coiling of stator coil is comparatively simple, and production efficiency is higher.
And, because tooth section is provided with straight-tooth and turns round tooth, turning round tooth twists in the direction of its extension, like this, straight-tooth and to turn round notch and bottom land length on circumferential direction of the winding slot that forms between the tooth unequal, be conducive to be embedded in inside and outside two-layer coil at winding slot, the coil of avoiding coiling mutually pushes and the high phenomenon of turn-to-turn fraction defective occurs.
A preferred scheme is, turn round tooth and comprise that first of along clockwise direction distortion turns round tooth and turn round tooth with second of distortion in the counterclockwise direction, and first turns round tooth and second and turns round tooth in the interval layout that makes progress in the week of tooth section.
This shows that tooth section has two kinds of different teeth of turning round, and two kinds turned round the space of teeth and arrange, can form thus two kinds of different winding slots, be conducive to the coiling of interior loop and exterior loop, avoid interior loop and exterior loop overlapped.
Further scheme is, adjacent first turns round tooth and second turns round and be provided with a straight-tooth between the tooth.
As seen, straight-tooth is arranged on adjacent two kinds turns round between the tooth, can effectively utilize the space that makes progress in tooth section week, in the week of tooth section more tooth is set upwards.
For realizing another purpose of the present utility model, the stator core that the utility model provides is overrided to form by the identical stator punching of multi-disc shape, every a slice stator punching has yoke section, be provided with tooth section in the yoke section, wherein, the inner periphery of yoke section is provided with a plurality of grooves, tooth section is provided with a plurality of tenons that cooperate with a plurality of grooves, tooth section has the interior circular hole of hollow, and be provided with a plurality of teeth that extend radially outwardly along stator punching from interior circular hole, form winding slot between two adjacent teeth, a plurality of teeth comprise a plurality of straight-tooth and a plurality of tooth of turning round, straight-tooth with turn round tooth and arrange at the interval that makes progress in the week of tooth section.
By such scheme as seen, stator punching is made of the yoke section that removably connects and tooth section, stator core also is to be made of the yoke section after laminating and tooth section, during coiling, can again tooth section be installed in the yoke section in the tooth section of coil winding after laminating, thereby simplify the operation that winds the line, and realize the automated production of coiling, improve the production efficiency of coiling.
For realizing an again purpose of the present utility model, the motor that the utility model provides has stator and is installed in the interior rotor of stator, stator has stator core and is wrapped in coil on the stator core, stator core is overrided to form by the multi-disc stator punching, every a slice stator punching has yoke section, be provided with tooth section in the yoke section, wherein, the inner periphery of yoke section is provided with a plurality of grooves, tooth section is provided with a plurality of tenons that cooperate with a plurality of grooves, tooth section has the interior circular hole of hollow, and be provided with a plurality of teeth that extend radially outwardly along stator punching from interior circular hole, form winding slot between two adjacent teeth, a plurality of teeth comprise a plurality of straight-tooth and a plurality of tooth of turning round, straight-tooth with turn round tooth and arrange at the interval that makes progress in the week of tooth section.
This shows that the yoke section of the stator punching of motor removably is connected with tooth section, when coiling, can be first with coil winding in tooth section, the tooth section that will be embedded with again coil is installed in the yoke section, thereby simplifies the technique for coiling of coil, and improves the production efficiency of motor.
And, because tooth section has straight-tooth and turns round tooth, notch and the bottom land width of the winding slot that two adjacent teeth form are unequal, be conducive to the coiling of interior loop and exterior loop, avoid interior loop and exterior loop overlapping, do not need coil to stretch out stator core, the enamelled wire length that the coil of coiling uses is shorter, reduces the production cost of motor.
Description of drawings
Fig. 1 is the cutaway view of existing motor.
Fig. 2 is the structure enlarged drawing of existing stator punching.
Fig. 3 is the structure enlarged drawing that existing stator core is wound with coil.
Fig. 4 is the structure chart of the utility model stator punching embodiment.
Fig. 5 is the structure chart of yoke section among the utility model stator punching embodiment.
Fig. 6 is the structure chart of tooth section among the utility model stator punching embodiment.
Fig. 7 is the structure enlarged drawing of straight-tooth among the utility model stator punching embodiment.
Fig. 8 is the structure enlarged drawing of turning round tooth among the utility model stator punching embodiment.
Fig. 9 is the structure chart that the stator core among the utility model motor embodiment is wound with coil.
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
The end cap that motor of the present utility model has housing and is positioned at the housing both sides, housing and end cap surround a cavity, and stator and rotor are installed in the cavity.In the present embodiment, stator is made of stator core and the coil that is wrapped on the stator core, and the middle part of stator core is provided with columned rotor installing hole, and rotor is installed in the rotor installing hole.And the middle part of rotor is equipped with armature spindle, armature spindle and rotor interference fit, and rotate with the rotation of rotor, thus outside outputting power.
Stator has stator core and is wrapped in coil on the stator core, and stator core is overrided to form by the identical stator punching of multi-disc shape.Referring to Fig. 4, the stator punching of present embodiment 40 is stamped to form by silicon steel sheet, and it is made of with tooth section 45 the yoke section 41 that removably connects, and yoke section 41 is positioned at the outside of customization punching 40, and tooth section 45 is positioned at yoke section 41.
Referring to Fig. 5, it is circular that yoke section 41 roughly is, and its outward flange is positive circular.As seen from Figure 4, the outward flange of yoke section 41 also is the outward flange of stator punching, and its circle diameter φ 1 is between 90 millimeters to 98 millimeters, so the outside diameter of stator punching 40 is between 90 millimeters to 98 millimeters.The inner periphery of yoke section 41 is provided with a plurality of grooves 42, and a plurality of grooves 42 circumferentially are evenly arranged along the inner periphery of yoke section 41.Each groove 42 all is to extend from the outside edge direction of inner periphery, and preferably, each groove 42 all is dovetail grooves, and notch is towards the inboard of stator punching 40, and notch is narrower.
Referring to Fig. 6, the middle part of tooth section 45 is the interior circular hole 46 of hollow, interior circular hole is positive circular, among Fig. 4, the diameter phi 2 of interior circular hole is between 55 millimeters to 65 millimeters, after multi-disc stator punching 40 laminated in the stator core of rear formation, the interior circular hole 46 of stator punching 40 formed the rotor installing hole of stator cores, and rotor is installed in the rotor installing hole.
Outside interior circular hole 46, tooth section 45 is provided with 24 teeth that extend radially outwardly along stator punching 40 from interior circular hole 46,24 teeth comprise that 12 straight-tooth 50 and 12 turn round tooth, turn round tooth and comprise along the Equations of The Second Kind of turning round tooth 55 and in the counterclockwise direction distortion along the first kind of pointer direction distortion and turn round tooth 60.In the present embodiment, straight-tooth 50 arranges at the interval that makes progress in the week of tooth section 45 with turning round tooth, namely be provided with one between two adjacent straight-tooth 50 and turn round tooth, and adjacent two is turned round and is provided with a straight-tooth between the tooth.
In addition, the first kind is turned round tooth 55, and to turn round tooth 60 with Equations of The Second Kind upwards also be the interval setting in the week of tooth section 45, but the adjacent first kind is turned round tooth 55 and Equations of The Second Kind and turned round and be provided with a straight-tooth 50 between the tooth 60.The adjacent first kind is turned round the center line of tooth 55 and Equations of The Second Kind, and to turn round the angle α that forms between the center line of tooth 60 be 34 °, is 60 ° and be separated with one two the angle β between two straight-tooth 50 center lines turning round tooth.
Referring to Fig. 7, each straight-tooth 50 comprises the tooth root 52 near interior circular hole 46, and tooth root 52 outsides are provided with denticle 51, and the top of denticle 51 is provided with a tenon 53, and in the present embodiment, tenon 53 is dovetail.Tenon 53 cooperates with the groove 42 of yoke section 41, so yoke section 41 is to realize dismountable the connection by groove 42 with the cooperation of tenon 53 with tooth section 45.The width D 1 of denticle 51 is between 3.1 millimeters to 3.6 millimeters, and height H 1 is between 9.5 millimeters to 11.8 millimeters, and the height H 2 of tooth root 52 is between 0.5 millimeter to 0.6 millimeter.
Referring to Fig. 8, the denticle that the first kind is turned round tooth 55 is made of vertical component 56 and wreath piece 57, vertical component 56 is positioned at the side near yoke section 41, and be parallel to stator punching 40 radially, wreath piece 57 is near the interior circular hole 46 of tooth section 45, from stator punching 40 circumferentially, wreath piece 57 twists along clockwise direction from the end of vertical component 56.The bottom that the first kind is turned round tooth 55 is tooth root 58, and tooth root 58 is positioned at the outside of circular hole 46.
At the top of vertical component 56, namely the first kind top of turning round tooth 55 is provided with tenon 59, and in the present embodiment, tenon 59 is dovetail, and cooperates with the dovetail groove of yoke section 41.
The first kind is turned round in the tooth 55, the width D 2 of vertical component 56 is between 3.1 millimeters to 3.6 millimeters, the width D 3 of wreath piece 57 also is between 3.1 millimeters to 3.6 millimeters, and tooth depth H3 is between 9.5 millimeters to 11.8 millimeters, and the height of tooth root 58 is between 0.5 millimeter to 0.6 millimeter.And the angle γ between the side 61 of wreath piece 57 and the side 62 of tooth root 58 is between 58 ° to 65 °.
Equations of The Second Kind is turned round tooth 60 and is turned round the design of tooth 55 axial symmetry with the first kind, therefore to turn round the wreath piece of tooth 60 be that week at stator punching 40 is upwards counterclockwise to twist with respect to vertical component to Equations of The Second Kind, as seen, to turn round the direction of twist that tooth 55 and Equations of The Second Kind turn round tooth 60 opposite for the first kind.
Like this, no matter be that straight-tooth 50 or the first kind are turned round tooth 55, Equations of The Second Kind is turned round tooth 60 and is equipped with a dovetail, namely the top of each tooth all arranges a dovetail, is used for cooperating with the dovetail groove of yoke section 41.
Week of tooth section 45 upwards, two adjacent teeth form a winding slot, so each winding slot is all turned round between the tooth a straight-tooth 50 and one.As seen from Figure 6, be positioned at the notch of straight-tooth 50 clockwise first kind winding slots 63, namely near yoke section 41 be in the width that makes progress in 40 weeks of stator punching greater than bottom land at stator punching 40 at the width that makes progress in week.And the notch that is positioned at straight-tooth 50 anticlockwise Equations of The Second Kind grooves 64 is narrower, and bottom land is wider.Like this, each first kind winding slot 63 all is not the wide groove of notch and bottom land with each Equations of The Second Kind winding slot 64.
Referring to Fig. 9, stator core 70 is overrided to form by multi-disc stator punching 40, when making stator, at first the tooth section 45 with multi-disc stator punching 40 laminates the tooth section 75 that forms stator core 70, and the yoke section 41 of multi-disc stator punching 40 is laminated the yoke section 71 that forms stator core 70.Then, on the tooth of tooth section 75, the tooth section 75 that will be wound with at last coil is installed in the yoke section 71 with coil winding.Like this, can by automation equipment with coil winding in tooth section, even manually embed coil, the workload that coil embeds also embeds workload less than the coil of common stator core, improves the production efficiency of stator.
The coil that is wound on the stator core 70 comprises two-layer coil, i.e. interior loop 81 and exterior loop 82, interior loop 81 are near tooth sections 75, and exterior loop 82 is near yoke sections 71.In addition, interior loop 81 is wound on the bottom of two Equations of The Second Kind winding slots 73, and each exterior loop 82 is wound on the top of two first kind winding slots 74, can avoid like this interior loop 81 and exterior loop 82 upwards overlapping in the footpath of stator core 70, thereby interior loop 81 is high with exterior loop 82 turn-to-turn fraction defectives, improves the stability of motor.
Certainly, above-described embodiment only be the utility model preferred embodiment, during practical application more change can be arranged, for example, the tenon of the groove of yoke section and tooth section is not dovetail groove and dovetail, and the groove of other shapes and tenon; Perhaps, section is set with insulation framework at tooth, winding around on insulation framework, and such change also can realize the purpose of this utility model.
It is emphasized that at last the utility model is not limited to above-mentioned execution mode, also should be included in the protection range of the utility model claim such as the variations such as change of change, the change of turning round odontoid, yoke section and the tooth section size of the number of teeth amount of tooth section.
Claims (10)
1. stator punching comprises
Yoke section is provided with tooth section in the described yoke section;
It is characterized in that:
The inner periphery of described yoke section is provided with a plurality of grooves, described tooth section is provided with a plurality of tenons that cooperate with a plurality of described grooves, described tooth section has the interior circular hole of hollow, and is provided with a plurality of teeth that extend radially outwardly along described stator punching from described interior circular hole, forms winding slot between two adjacent described teeth;
A plurality of described teeth comprise a plurality of straight-tooth and a plurality of tooth of turning round, and described straight-tooth and the described tooth of turning round arrange at the interval that makes progress in week of described tooth section.
2. stator punching according to claim 1 is characterized in that:
The described tooth of turning round comprises that along clockwise direction first of distortion turns round tooth and turn round tooth with second of distortion in the counterclockwise direction, and described first turns round tooth and described second and turn round tooth in the interval layout that makes progress in week of described tooth section.
3. stator punching according to claim 2 is characterized in that:
Adjacent described first turns round tooth and described second turns round and is provided with a described straight-tooth between the tooth.
4. according to claim 1 to 3 each described stator punchings, it is characterized in that:
Described groove is dovetail groove, and described tenon is dovetail.
5. stator core, the stator punching identical by the multi-disc shape is overrided to form, and each described stator punching comprises
Yoke section is provided with tooth section in the described yoke section;
It is characterized in that:
The inner periphery of described yoke section is provided with a plurality of grooves, described tooth section is provided with a plurality of tenons that cooperate with a plurality of described grooves, described tooth section has the interior circular hole of hollow, and is provided with a plurality of teeth that extend radially outwardly along described stator punching from described interior circular hole, forms winding slot between two adjacent described teeth;
A plurality of described teeth comprise a plurality of straight-tooth and a plurality of tooth of turning round, and described straight-tooth and the described tooth of turning round arrange at the interval that makes progress in week of described tooth section.
6. stator core according to claim 5 is characterized in that:
The described tooth of turning round comprises that along clockwise direction first of distortion turns round tooth and turn round tooth with second of distortion in the counterclockwise direction, and described first turns round tooth and described second and turn round tooth in the interval layout that makes progress in week of described tooth section.
7. stator core according to claim 6 is characterized in that:
Adjacent described first turns round tooth and described second turns round and is provided with a described straight-tooth between the tooth.
8. motor comprises
Stator and be installed in rotor in the described stator, described stator has stator core and is wrapped in coil on the described stator core, described stator core is overrided to form by the multi-disc stator punching, and each described stator punching comprises yoke section, is provided with tooth section in the described yoke section;
It is characterized in that:
The inner periphery of described yoke section is provided with a plurality of grooves, described tooth section is provided with a plurality of tenons that cooperate with a plurality of described grooves, described tooth section has the interior circular hole of hollow, and is provided with a plurality of teeth that extend radially outwardly along described stator punching from described interior circular hole, forms winding slot between two adjacent described teeth;
A plurality of described teeth comprise a plurality of straight-tooth and a plurality of tooth of turning round, and described straight-tooth and the described tooth of turning round arrange at the interval that makes progress in week of described tooth section.
9. motor according to claim 8 is characterized in that:
The described tooth of turning round comprises that along clockwise direction first of distortion turns round tooth and turn round tooth with second of distortion in the counterclockwise direction, and described first turns round tooth and described second and turn round tooth in the interval layout that makes progress in week of described tooth section.
10. motor according to claim 9 is characterized in that:
Adjacent described first turns round tooth and described second turns round and is provided with a described straight-tooth between the tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320201629 CN203261139U (en) | 2013-04-19 | 2013-04-19 | Stator punching sheet, stator core and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320201629 CN203261139U (en) | 2013-04-19 | 2013-04-19 | Stator punching sheet, stator core and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203261139U true CN203261139U (en) | 2013-10-30 |
Family
ID=49473677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320201629 Ceased CN203261139U (en) | 2013-04-19 | 2013-04-19 | Stator punching sheet, stator core and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203261139U (en) |
-
2013
- 2013-04-19 CN CN 201320201629 patent/CN203261139U/en not_active Ceased
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20140617 Decision number of declaring invalidation: 22980 Granted publication date: 20131030 |