CN203251152U - Stator structure of outer rotor AC motor - Google Patents
Stator structure of outer rotor AC motor Download PDFInfo
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- CN203251152U CN203251152U CN 201320083859 CN201320083859U CN203251152U CN 203251152 U CN203251152 U CN 203251152U CN 201320083859 CN201320083859 CN 201320083859 CN 201320083859 U CN201320083859 U CN 201320083859U CN 203251152 U CN203251152 U CN 203251152U
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- stator structure
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Abstract
The utility model relates to a stator structure, especially relates to a stator structure of an outer rotor AC motor. The stator structure of the outer rotor AC motor comprises a stator iron core, the stator iron core is protruded at the outer edge to form a plurality of teeth; winding grooves are formed among the teeth, and a master coil and a slave coil are arranged on the teeth via the winding grooves. The stator structure of the outer rotor AC motor is characterized in that the number of the winding grooves is not less than 24, and the winding grooves are distributed annularly side by side. The stator structure of the outer rotor AC motor is simple in structure, convenient in manufacture and low in production cost.
Description
Technical field:
The utility model relates to a kind of stator structure, relates in particular to a kind of stator structure of external rotor alternate current motor.
Background technology:
Traditional external rotor electric machine is in order to provide larger torsion, need to use the structure (i.e. the mode of height groove) of inside and outside two-layer winding slot to make stator core (as shown in Figure 1), main coil and secondary coil are wrapped in the tooth section by interior winding slot or outer winding slot respectively, yet also there is the following aspects defective in this structure:
1. traditional stator coiling step is complicated, and production efficiency is low.Traditional stator is made and need be finished following production process: A. and stator is placed on to beat plays interior winding slot insulating paper on the inside groove paper apparatus; B. stator is taken off from beating the inside groove paper apparatus, be placed on the interior Winder around interior winding slot coil; C. again stator is put into to beat on the inside groove insulation board device and beaten the winding slot insulation board; D. stator is placed on to beat on the water jacket paper apparatus and plays outer winding slot insulating paper; E. stator is taken off from beating the water jacket paper apparatus, be placed on the outer Winder around outer winding slot coil; F. again stator is put into to beat on the water jacket insulation board device and beaten outer winding slot insulation board; G. stator surface dipping lacquer.Must successively use two Winders, two to beat groove paper apparatus and two in actual production process beats the insulation board device and just can finish coiling work;
2. the arrangement mode of height groove is so that the spacing of two adjacent outer winding slots or two adjacent interior winding slots is larger, and tooth section area is large, and the enamelled wire use amount is large, has increased production materials cost;
3. height groove stator core central space is little, can't the material at its middle part effectively be utilized, and has further increased production materials cost.
Summary of the invention:
The purpose of this utility model provides a kind of stator structure of external rotor alternate current motor.It is simple in structure, and is easily manufactured, and production cost is low.
The technical scheme of the stator structure of a kind of external rotor alternate current motor described in the utility model is achieved in that
A kind of stator structure of external rotor alternate current motor, it comprises stator core, stator core is the some teeth of outstanding formation in the outer, form winding slot between each tooth, main coil and secondary coil are arranged on the tooth by winding slot, it is characterized in that: the quantity of winding slot is no less than 24, and all winding slots are single circle-shaped distribution.
The stator structure of a kind of external rotor alternate current motor described in the utility model compared with prior art has following advantage:
1. the winding slot that adopts individual layer to arrange only needs can finish by a Winder winding of main coil and secondary coil when coiling, in the situation that finish same coiling work, production efficiency improves four to five times, has significantly reduced staff's labour intensity, time and manpower is saved cost;
2. adopt the individual layer winding slot of arranging, so that arrange compactlyer between the winding slot, reduce tooth section surface area more than 60%, under the prerequisite of equal-wattage, temperature rise, torsion, the enamelled wire use amount can reduce more than 40%, has reduced material cost;
3. all tooth sections of stator all are distributed in the outer of stator core closely, under the prerequisite that does not affect motor operation magnetic circuit, can save stator core middle part materials, further reduce material cost.
The number of turn of main coil described above and secondary coil all is no less than 400 circles, and wire diameter all is not more than 0.17mm.When using the stator core of single winding slot to replace the stator core of height groove, because the reducing of the separation of its two adjacent winding slot, around apart from reducing, reduced total scale of construction of enamelled wire, saved material cost, but motor torsion reduces simultaneously, carrying load ability reduces.If situation about reducing in order to improve torsion according to traditional technology prejudice, will increase motor speed by the mode that reduces the main coil number of turn usually, increase simultaneously the coil wire diameter with the reduction temperature rise, but in actual use, torsion increases effect and not obvious.For this reason, using under the constant prerequisite of the total scale of construction of enamelled wire, by reducing main coil and secondary coil wire diameter, increase the number of turn, adjusting main and sub-coil winding ratio, so that in the situation that the constant input power that reduced of power output, the circle parameter reduces, power factor improves, stock utilization increases, the efficient degree increases, and torsion improves, and possesses good practicality.
Stator core described above forms a centre bore in the middle part.Because the single arrangement of winding slot, make the tooth of stator be distributed in closely the outer of stator core, under the prerequisite that does not affect motor operation magnetic circuit, raw material (such as the silicon steel sheet) mid portion that is used for this stator of punching press can be gone out as other motor rotor/stator punching, so that identical raw material can be used as the stator core of making a plurality of different sizes, can greatly reduce the integrated cost of producing external rotor electric machine.
Tooth described above comprises the first tooth and the second tooth, and the first tooth and the second tooth are intervally arranged on circumferencial direction, and the first tooth is forming the first winding slot on the circumference positive direction and between the second tooth, and the first tooth forms the second winding slot on the circumference opposite direction and between the second tooth.Main coil, secondary coil are wrapped in respectively on the first tooth and the second tooth, and the polarity of the second adjacent tooth is identical on the first tooth and its circumference positive direction, and the first tooth is opposite with the polarity that its circumference is gone up the second adjacent tooth in the other direction.
Size and the shape of the first winding slot described above and the second winding slot are not identical.
The quantity of winding slot described above is 32, and number of pole-pairs is 16.
The quantity of winding slot described above is 28, and number of pole-pairs is 14.
Stator core diameter described above is 167.1mm, and wire diameter is not more than 0.17mm, and the number of turn is not less than 400 circles.The stator punching of diameter 95mm can be gone out for other motor in the stator core middle part.
Stator core diameter described above is 130mm, and wire diameter is not more than 0.17mm, and the number of turn is not less than 600 circles.The stator punching of diameter 78mm can be gone out for other motor in the stator core middle part.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is described in detail:
Fig. 1 is the structural representation of traditional external rotor alternate current motor stator core;
Fig. 2 is the part coiling schematic diagram of traditional external rotor alternate current motor stator core;
Fig. 3 is the structural representation of a kind of the first winding slot ceiling fan alternating current motor stator core identical with the second winding slot size;
Fig. 4 is Fig. 3 forms the stator core of centre bore in the middle part punching press structural representation;
Fig. 5 is the part coiling schematic diagram of Fig. 3 or stator core shown in Figure 4;
Fig. 6 is the structural representation of the ceiling fan alternating current motor stator core that varies in size of a kind of the first winding slot and the second winding slot.
Embodiment:
Structural representation and the local coiling schematic diagram of traditional external rotor alternate current motor stator core as depicted in figs. 1 and 2, stator core adopts the structure of inside and outside two-layer winding slot (i.e. the mode of height groove), when coiling, main coil and secondary coil are wrapped in respectively on outer winding slot 01 and the interior winding slot 02, and its production process comprises following step:
A. stator is placed on to beat and plays interior winding slot insulating paper on the inside groove paper apparatus;
B. stator is taken off from beating the inside groove paper apparatus, be placed on the interior Winder around interior winding slot coil;
C. again stator is put into to beat on the inside groove insulation board device and beaten the winding slot insulation board;
D. stator is placed on to beat on the water jacket paper apparatus and plays outer winding slot insulating paper;
E. stator is taken off from beating the water jacket paper apparatus, be placed on the outer Winder around outer winding slot coil;
F. again stator is put into to beat on the water jacket insulation board device and beaten outer winding slot insulation board;
G. stator surface dipping lacquer.
Must successively use two Winders, two to beat groove paper apparatus and two in actual production process and beat the insulation board device and just can finish coiling work, the coiling step is complicated, and production efficiency is low.The setting of height groove is difficult to the stator core central space is effectively utilized also so that the stator core central space is less; And around excessive, consumptive material is more in the coiling process for stator core, and material cost is high.
Be illustrated in figure 3 as a kind of stator structure of ceiling fan alternating current machine, it comprises stator core 1, and stator core 1 is outstanding some teeth 3, the formation winding slot 2 between each tooth of forming in the outer, main coil and secondary coil are arranged on the tooth 3 by winding slot 2, and all winding slots 2 are single circle-shaped distribution.
Described tooth 3 comprises the first tooth 31 and the second tooth 32, the first tooth 31 and the second tooth 32 are intervally arranged on circumferencial direction, the first tooth 31 form on the circumference positive direction and between the second tooth 32 the first winding slot 21, the first teeth circumference in the other direction on and form the second winding slot 22 between the second tooth.Main coil, secondary coil are wrapped in respectively on the first tooth 31 and the second tooth 32, the polarity of the second adjacent tooth 32 is identical on the first tooth 31 and its circumference positive direction, the first tooth 31 is opposite with the polarity that its circumference is gone up the second adjacent tooth 32 in the other direction, and the tooth at the leading-in end place of main coil and secondary coil differs 90 degree angles of circumference at circumference.
The production process of single winding slot stator comprises following step:
A. stator surface is applied processing;
B. on the first tooth and the second tooth, twine respectively main coil and secondary coil;
C. stator surface dipping lacquer.
Just groove stator production process and single winding slot stator production process compare as can be known, owing to adopting single winding slot setting, when being wound the line, stator only needs to finish by a Winder winding of main coil and secondary coil, in the situation that finish same coiling work, production efficiency improves four to five times, significantly reduced staff's labour intensity, time and manpower is saved cost.
As shown in Figure 4, a centre bore 4 also can be offered in the stator core middle part, and the minimum range of described centre bore and the first winding slot and the second winding slot is not less than 8mm.Under the prerequisite that does not affect motor operation magnetic circuit, raw material (such as the silicon steel sheet) mid portion that is used for this stator of punching press can be gone out as other motor rotor/stator punching, so that identical raw material can be used as the stator core of making a plurality of different sizes, can greatly reduce the integrated cost of external rotor electric machine.
As shown in Figure 5, adopt the spacing of the adjacent winding slot of stator of single winding slot less, consume enamelled wire less, can control preferably material cost.
As shown in Figure 6, under the size and variform situation of the first winding slot and the second winding slot, still can reach the effect that saves production cost preferably and save molding time.
The stator structure of a kind of external rotor alternate current motor described in the utility model has been broken away from the technology prejudice of existing increase stator torsion, adopts the method reduce main coil and secondary coil wire diameter, to increase the number of turn to realize the significantly lifting of stator torsion.
As preferred embodiment of the present utility model, a kind of stator of 167.11mm diameter adopts wire diameter to be not more than main coil and the secondary coil of 0.17mm, and the number of turn is not less than 530 circles.The stator punching of diameter 95mm can be gone out for other motor in the stator core middle part.
The stator of another kind of 130mm diameter adopts wire diameter to be not more than main coil and the secondary coil of 0.17mm, and the number of turn is not less than 450 circles.The stator punching of diameter 78mm can be gone out for other motor in the stator core middle part.
Be a kind of execution mode that provides in conjunction with particular content as mentioned above, can not assert that implementation of the present utility model is confined to these explanations.All approximate, identical with the utility model method, structure etc., or for making some technology deduction or replace under the utility model design prerequisite, all should be considered as protection range of the present utility model.
Claims (10)
1. the stator structure of an external rotor alternate current motor, it comprises stator core, stator core is the some teeth of outstanding formation in the outer, form winding slot between each tooth, main coil and secondary coil are arranged on the tooth by winding slot, it is characterized in that: the quantity of winding slot is no less than 24, and all winding slots are single circle-shaped distribution.
2. the stator structure of a kind of external rotor alternate current motor according to claim 1, it is characterized in that: the number of turn of main coil and secondary coil all is no less than 400 circles, and wire diameter all is not more than 0.17mm.
3. according to the stator structure of a kind of external rotor alternate current motor claimed in claim 2, it is characterized in that: described stator core forms a centre bore in the middle part.
4. according to the stator structure of the described a kind of external rotor alternate current motor of one of claims 1 to 3, it is characterized in that: described tooth comprises the first tooth and the second tooth, the first tooth and the second tooth are intervally arranged on circumferencial direction, the first tooth is forming the first winding slot on the circumference positive direction and between the second tooth, the first tooth forms the second winding slot on the circumference opposite direction and between the second tooth.
5. according to the stator structure of a kind of external rotor alternate current motor claimed in claim 4, it is characterized in that: size and the shape of described the first winding slot and the second winding slot are not identical.
6. the stator structure of a kind of external rotor alternate current motor according to claim 4, it is characterized in that: the quantity of described winding slot is 32, number of pole-pairs is 16.
7. the stator structure of a kind of external rotor alternate current motor according to claim 4, it is characterized in that: the quantity of described winding slot is 28, number of pole-pairs is 14.
8. the stator structure of a kind of external rotor alternate current motor according to claim 4, it is characterized in that: described stator core diameter is 167.1mm, and wire diameter is not more than 0.17mm, and the number of turn is no less than 400 circles.
9. the stator structure of a kind of external rotor alternate current motor according to claim 4, it is characterized in that: described stator core diameter is 130mm, and wire diameter is not more than 0.17mm, and the number of turn is no less than 600 circles.
10. the stator structure of a kind of external rotor alternate current motor according to claim 4, it is characterized in that: the minimum range of described centre bore outer and the first winding slot and the second winding slot is not less than 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320083859 CN203251152U (en) | 2013-02-22 | 2013-02-22 | Stator structure of outer rotor AC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320083859 CN203251152U (en) | 2013-02-22 | 2013-02-22 | Stator structure of outer rotor AC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203251152U true CN203251152U (en) | 2013-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320083859 Expired - Fee Related CN203251152U (en) | 2013-02-22 | 2013-02-22 | Stator structure of outer rotor AC motor |
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| Country | Link |
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| CN (1) | CN203251152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009559A (en) * | 2013-02-22 | 2014-08-27 | 苑本章 | Stator structure of external-rotor AC motor |
-
2013
- 2013-02-22 CN CN 201320083859 patent/CN203251152U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009559A (en) * | 2013-02-22 | 2014-08-27 | 苑本章 | Stator structure of external-rotor AC motor |
| CN104009559B (en) * | 2013-02-22 | 2016-12-28 | 余社洪 | A kind of stator structure of outer rotor AC motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151116 Address after: 529000, Xinhui District, Guangdong City, Jiangmen Province, for example, No. 10, 401 Patentee after: Yu Shehong Patentee after: Yuan Ke Address before: Nine, building 528400, digital building, conference East Road, Torch Development Zone, Zhongshan, Guangdong Patentee before: Yuan Benzhang Patentee before: Li Wunan |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160114 Address after: 529000, Xinhui District, Guangdong City, Jiangmen Province, for example, No. 10, 401 Patentee after: Yu Shehong Patentee after: Mo Mingzhu Address before: 529000, Xinhui District, Guangdong City, Jiangmen Province, for example, No. 10, 401 Patentee before: Yu Shehong Patentee before: Yuan Ke |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20170222 |