CN110601389A - Motor inner stator - Google Patents
Motor inner stator Download PDFInfo
- Publication number
- CN110601389A CN110601389A CN201910876382.7A CN201910876382A CN110601389A CN 110601389 A CN110601389 A CN 110601389A CN 201910876382 A CN201910876382 A CN 201910876382A CN 110601389 A CN110601389 A CN 110601389A
- Authority
- CN
- China
- Prior art keywords
- stator
- fan
- tooth
- tenon
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004080 punching Methods 0.000 claims abstract description 9
- 238000004804 winding Methods 0.000 claims abstract description 6
- 210000001503 joint Anatomy 0.000 claims description 2
- 210000003781 tooth socket Anatomy 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract 1
- 210000003205 muscle Anatomy 0.000 description 2
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention aims to provide a motor inner stator with small stator slot opening, high slot filling rate and high material utilization rate, which comprises a fan-shaped stator unit formed by laminating a plurality of stator punching units together, wherein the fan-shaped stator unit comprises teeth, the outer ends of the teeth are provided with tooth shoulders, the inner ends of the teeth are provided with yoke parts, tooth grooves for winding stator coils are formed on two sides of the teeth, a plurality of fan-shaped stator units are mutually embedded together through tenon ribs and tenon grooves to form a circular stator core, and the middle part of the yoke part is provided with a through hole or slot. Compared with the whole circle, the material utilization rate is high, the punching die is simplified, the automatic large-scale production is facilitated, the process is simple, the stator notch does not need to be large, and the slot fullness rate is high. The middle part of the yoke part is provided with a through hole or a through groove, on one hand, a connecting channel is provided for the fastening piece for fastening and connecting the fan-shaped stator units, on the other hand, a part of the internal circulation sealing path is formed, and the cooling structure in the motor is optimized.
Description
Technical Field
The invention relates to the technical field of motors, in particular to an improvement on a motor inner stator structure.
Background
Traditional inner stator structure is mostly whole circle structure, and the mould frock that the manufacturing needs is more, and the enameled wire must pass through the stator core notch during the wire winding, so the wire winding in-process often appears the enameled wire and touch the notch and injure the condition of line, and the punching sheet of whole circle structure adopts whole punching press blanking processing to form moreover, and material utilization is not high, has seriously restricted the development of this type of motor. Aiming at the structure of a centralized winding and the inner stator structure with an overlarge outer diameter, the corresponding automatic coil inserting machine is required to have complex function and huge appearance.
Disclosure of Invention
The invention aims to provide the motor inner stator which is small in stator slot opening, high in slot filling rate and high in material utilization rate.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides an electric motor inner stator, include the fan-shaped stator unit that is folded together and is pressed constitution by multi-disc stator punching unit, fan-shaped stator unit includes the tooth, the outer end of tooth is provided with the tooth shoulder, the inner end is provided with yoke portion, the constitution of tooth both sides is used for around the tooth's socket of stator coil, yoke portion both sides are provided with tenon muscle and tongue-and-groove respectively, a plurality of fan-shaped stator units pass through tenon muscle, the annular stator core that the tongue-and-groove inlayed together and formed each other, hole or groove that link up is seted up at the middle part of yoke portion, the length direction in hole or groove is unan.
In the scheme, the stator core is formed by mutually inlaying the plurality of fan-shaped stator units, the material utilization rate is high compared with that of a whole circle, a punching die is simplified, and the automatic large-scale production is facilitated. The middle part of the yoke part is provided with a through hole or a through groove, on one hand, a connecting channel is provided for the fastening piece for fastening and connecting the fan-shaped stator units, on the other hand, a part of the internal circulation sealing path is formed, and the cooling structure in the motor is optimized.
Drawings
Fig. 1 is a front view of a stator core;
fig. 2 is a perspective view of a stator core;
fig. 3 is a schematic view of a sector stator unit.
Detailed Description
With reference to fig. 1-3, an electric machine inner stator includes a sector stator unit 10 formed by stacking a plurality of stator lamination units together, the sector stator unit 10 includes a tooth 11, a tooth shoulder 12 is provided at an outer end of the tooth 11, a yoke 13 is provided at an inner end, tooth slots 14 for winding a stator coil are formed at two sides of the tooth 11, tenon ribs 131 and tenon slots 132 are respectively provided at two sides of the yoke 13, a plurality of sector stator units 10 are embedded into a circular stator core formed by the tenon ribs, the tenon slots 12 and the mortise 13, a through hole or slot 133 is provided at a middle portion of the yoke 13, and a length direction of the hole or slot 133 is consistent with a central axis direction of the circular stator core. The stator core is formed by mutually inlaying a plurality of fan-shaped stator units 10, the material utilization rate is high compared with that of a whole circle, a punching die is simplified, and the automatic large-scale production is facilitated. The yoke 13 has a through hole or slot 133 formed in the middle thereof, which provides a connection passage for fastening members for fastening the respective stator segments 10 to each other, and also forms a part of the internal circulation air passage, thereby optimizing the cooling structure inside the motor.
Example 1: the yoke 13 is fan-shaped, the hole 133 is arranged at the position close to the inner end of the yoke 13, and the cross section of the hole 133 is square. So that the fastener passes through the hole 133 and is pressed against the inner wall at the inner circumference of the hole 133, and then the fastener is fixed.
Example 2: the yoke 13 is fan-shaped, the slot 133 is provided at the inner end of the yoke 13, and the slot 133 is a T-shaped slot with a closed opening facing the inner end. The fastener is passed through the slot 133 and pressed against the inner wall at the notch of the slot 133, and then the fastener is fixed.
Further, the cross-section of each tenon rib 131 and the cross-section of each tenon groove 132 are in a shape of a closed semicircle, and the tenon ribs and the tenon grooves are in clearance fit. In order to ensure that the tenon 131 smoothly passes through the mortise 132 and is in clearance fit with the mortise 132, the two assembled fan-shaped stator units 10 can rotate around the tenon 131, and then the cross sections of the tenon 131 and the mortise 132 are both in a closed semicircular shape, which is not a semicircular shape in a strict sense, but is actually provided with a closed end on the basis of a semicircular structure to prevent the tenon 131 from coming out of the notch of the mortise 132.
Specifically, the tooth shoulders 12 are convex strips extending from the outer ends of the teeth 11 to two sides, the convex strips on the left side and the right side are the same in width in the radial direction, gaps are reserved between the tooth shoulders 12 of the adjacent fan-shaped stator units 10, the radial inner edges of the tooth shoulders 12 are located on the same cylindrical surface, the radial outer edges of the tooth shoulders are also located on the same cylindrical surface, and the adjacent tooth grooves 14 of the adjacent fan-shaped stator units 10 are in butt joint to form a slot embedding groove a.
Claims (5)
1. An electric machine inner stator which characterized in that: the stator punching sheet structure comprises a fan-shaped stator unit (10) formed by overlapping a plurality of stator punching sheet units together, wherein the fan-shaped stator unit (10) comprises teeth (11), tooth shoulders (12) are arranged at the outer ends of the teeth (11), yoke parts (13) are arranged at the inner ends of the teeth, tooth sockets (14) for winding stator coils are formed on two sides of each tooth (11), tenon ribs (131) and mortise (132) are respectively arranged on two sides of each yoke part (13), a plurality of fan-shaped stator units (10) are embedded into a circular stator core formed by the tenon ribs and the mortise (12 and 13) together, a through hole or groove (133) is formed in the middle of each yoke part (13), and the length direction of the hole or groove (133) is consistent with the central axis direction of the circular stator core.
2. An electric machine inner stator as claimed in claim 1, wherein: the yoke part (13) is fan-shaped, the hole (133) is formed in the position, close to the inner end, of the yoke part (13), and the cross section of the hole (133) is square.
3. An electric machine inner stator as claimed in claim 1, wherein: the yoke part (13) is in a fan shape, the groove (133) is arranged at the position of the inner end of the yoke part (13), and the groove (133) is a closed T-shaped groove with an opening facing the inner end.
4. An electric machine inner stator as claimed in claim 1, wherein: the cross sections of the tenon rib (131) and the tenon groove (132) are both in a closed semicircular shape, and the tenon rib and the tenon groove are in clearance fit.
5. An electric machine inner stator as claimed in claim 1, wherein: the tooth shoulders (12) are convex strips extending from the outer ends of the teeth (11) to two sides, the convex strips on the left side and the right side are the same in width in the radial direction, gaps are reserved between the tooth shoulders (12) of the adjacent fan-shaped stator units (10), the radial inner edges of the tooth shoulders (12) are on the same cylindrical surface, the radial outer edges of the tooth shoulders are also on the same cylindrical surface, and the adjacent tooth grooves (14) of the adjacent fan-shaped stator units (10) are in butt joint to form a slot embedding groove A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910876382.7A CN110601389A (en) | 2019-09-17 | 2019-09-17 | Motor inner stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910876382.7A CN110601389A (en) | 2019-09-17 | 2019-09-17 | Motor inner stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110601389A true CN110601389A (en) | 2019-12-20 |
Family
ID=68860239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910876382.7A Pending CN110601389A (en) | 2019-09-17 | 2019-09-17 | Motor inner stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110601389A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017092191A1 (en) * | 2015-12-02 | 2017-06-08 | 中山大洋电机股份有限公司 | Stator punching, stator assembly and external rotor motor |
| CN207150274U (en) * | 2017-07-13 | 2018-03-27 | 常州神力电机股份有限公司 | A kind of motor stator iron core punch sheet structure |
| CN108471178A (en) * | 2018-05-31 | 2018-08-31 | 广东美芝制冷设备有限公司 | Stator core and motor, compressor with it |
| CN109245346A (en) * | 2018-11-07 | 2019-01-18 | 合普动力股份有限公司 | One kind dividing valve combined stator |
| CN210468915U (en) * | 2019-09-17 | 2020-05-05 | 安徽皖南电机股份有限公司 | Motor inner stator |
-
2019
- 2019-09-17 CN CN201910876382.7A patent/CN110601389A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017092191A1 (en) * | 2015-12-02 | 2017-06-08 | 中山大洋电机股份有限公司 | Stator punching, stator assembly and external rotor motor |
| CN207150274U (en) * | 2017-07-13 | 2018-03-27 | 常州神力电机股份有限公司 | A kind of motor stator iron core punch sheet structure |
| CN108471178A (en) * | 2018-05-31 | 2018-08-31 | 广东美芝制冷设备有限公司 | Stator core and motor, compressor with it |
| CN109245346A (en) * | 2018-11-07 | 2019-01-18 | 合普动力股份有限公司 | One kind dividing valve combined stator |
| CN210468915U (en) * | 2019-09-17 | 2020-05-05 | 安徽皖南电机股份有限公司 | Motor inner stator |
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