CN206517178U - A kind of external rotor electric machine is with split type closed slot stator core - Google Patents
A kind of external rotor electric machine is with split type closed slot stator core Download PDFInfo
- Publication number
- CN206517178U CN206517178U CN201720125488.XU CN201720125488U CN206517178U CN 206517178 U CN206517178 U CN 206517178U CN 201720125488 U CN201720125488 U CN 201720125488U CN 206517178 U CN206517178 U CN 206517178U
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- China
- Prior art keywords
- groove
- stator core
- split type
- electric machine
- external rotor
- 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.)
- Expired - Fee Related
Links
- 238000002955 isolation Methods 0.000 claims abstract description 21
- 238000004804 winding Methods 0.000 claims abstract description 17
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 9
- 239000004593 Epoxy Substances 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 16
- 239000010949 copper Substances 0.000 abstract description 16
- 229910052802 copper Inorganic materials 0.000 abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 12
- 238000010276 construction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a kind of external rotor electric machine with split type closed slot stator core, the yoke portion being molded including split and the boots portion being socketed on the outside of yoke portion and the magnetic isolation plate for being connected to boots portion two ends, the center in yoke portion offers the through hole being socketed in rotating shaft, coiling tooth is distributed with the outside continuous uniform in yoke portion, the first groove is formed between two neighboring coiling tooth, locating slot is provided with coiling tooth, the side wall of coiling tooth is parallel with the radial center face of coiling tooth, the positioning convex being engaged with locating slot is provided with the inside of boots portion, boots portion is towards being provided with the second groove on the position of winding slot, first groove and the winding slot of the second groove formation closing, the utility model passes through split type stator core construction, copper factor can reach more than 85%, substantially increase copper factor, reduce the quality of iron core, and then significantly reduce the quality of motor, the first groove and the winding slot of remaining silent of the second groove formation can substantially reduce rotor cogging torque simultaneously, reduce vibration noise of motor.
Description
Technical field
The utility model belongs to machine field, and in particular to a kind of external rotor electric machine is with split type closed slot stator core.
Background technology
Stator core is the important component for constituting motor magnetic flux loop and fixed stator coils, by the coiling tooth and yoke of coiling
Portion is wholely set, and the end of coiling tooth is provided between the baffle plate for preventing that coil from moving, adjacent coiling tooth and forms winding slot, adjacent
Space is left between the baffle plate of coiling tooth so that the copper factor of winding slot is relatively low, it is necessary to large volume of stator core, motor weight
Amount is excessive.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of high external rotor electric machine of copper factor with split type
Closed slot stator core.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that：A kind of external rotor electric machine is with split type
Closed slot stator core, including split shaping yoke portion and the boots portion that is socketed on the outside of yoke portion and be connected to boots portion two ends every
Magnetic sheet, the center in yoke portion offers the through hole being socketed in rotating shaft, and coiling tooth, adjacent two is distributed with the outside continuous uniform in yoke portion
Formed between individual coiling tooth and locating slot is provided with the first groove, coiling tooth, the side wall of coiling tooth and the radial center of coiling tooth
Face is parallel, and the positioning convex being engaged with locating slot is provided with the inside of boots portion, boots portion is towards being provided with the position of winding slot
The winding slot of second groove, the first groove and the formation closing of the second groove.
Further, the bottom of the second groove is the ramp shaped structure towards outside.
Further, the circular in cross-section of positioning convex.
Further, magnetic isolation plate is one kind in epoxy plate or aluminium sheet.
Further, boots portion be provided at both ends be provided with neck, magnetic isolation plate with neck rotate fasten " L " type card
Button.
Compared with prior art, the beneficial effects of the utility model are：
1st, the stator core prevents the boots portion socket-connected and yoke portion from occurring relative by the cooperation of positioning convex and locating slot
Rotate, the magnetic isolation plate at boots portion two ends plays a part of axial limiting to the yoke portion being socketed in boots portion, while magnetic isolation plate can be reduced
The leakage field of stator core.First groove and the winding slot of the second groove formation are compared to monoblock type iron core of the prior art, greatly
It is big to reduce rule difficulty, monoblock type iron core copper factor typically up to 70%, using the split type core structure, copper factor energy
More than 85% is enough easily reached, copper factor is substantially increased, in the case where meeting Same Efficieney demand, copper factor is higher, embedding
Volume needed for entering the iron core of equivalent conductor is just smaller, and iron core is smaller, quality just smaller, i.e. split of the motor equipped with iron core
Formula core structure significantly reduces the quality of motor, and the winding slot of remaining silent that the first groove and the second groove are formed, which can be substantially reduced, to be turned
Sub- cogging torque, reduces vibration noise of motor.
2nd, 180 ° of angle ɑ ＜ between two faces of the bottom of the second groove, form the ramp shaped structure towards outside, by the
The bottom of two grooves is provided towards the ramp shaped structure in outside, expands the volume of winding slot, greatly reduces rule difficulty same
When to improve copper factor higher.
3rd, positioning convex is the cylindric of circle in cross section so that phase will occur under the vibrations of motor for boots portion and yoke portion
During to rotating, the face that positioning convex is in contact with locating slot is relatively smooth, prevents the edges and corners stress of positioning convex larger and it
His position stress is smaller and stress that produce is seriously uneven, and then prevents the abrasion for causing positioning convex to locating slot, and extension is fixed
The service life of sub- iron core.
4th, epoxy plate and aluminium sheet are non-magnet material, are effectively reduced leakage field.
When the 5th, assembling, " L " the type buckle of magnetic isolation plate is rotated in the neck at the two ends for fastening to boots portion so that magnetic isolation plate and boots
Portion is fixed in the axial direction, and yoke portion two ends and the magnetic isolation plate being socketed in boots portion offset, " L " type buckle it is simple in construction, be easy to life
Production, reduction production difficulty and production cost.
Compared with prior art, the utility model is by split type stator core construction, copper factor can reach 85% with
On, substantially increase copper factor, reduce the quality of iron core, and then significantly reduce the quality of motor, while the first groove and the
The winding slot of remaining silent of two grooves formation can substantially reduce rotor cogging torque, reduce vibration noise of motor.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the front view in yoke portion；
Fig. 2 is the front view in boots portion；
Fig. 3 is the installation diagram in yoke portion and boots portion；
Fig. 4 is the explosive view of stator core.
Wherein：1st, yoke portion；11st, coiling tooth；111st, locating slot；12nd, the first groove；13rd, through hole；2nd, boots portion；21st, second is recessed
Groove；22nd, positioning convex；23rd, neck；3rd, magnetic isolation plate；31st, buckle.
Embodiment
Referring to figs. 1 to Fig. 4 to a kind of embodiment of the external rotor electric machine of the utility model with split type closed slot stator core
It is described further.
A kind of external rotor electric machine with split type closed slot stator core, including split shaping yoke portion 1 and be socketed in yoke portion 1
The boots portion 2 in outside and the magnetic isolation plate 3 for being connected to the two ends of boots portion 2, the center in yoke portion 1 offers the through hole being socketed in rotating shaft
13, the outside continuous uniform in yoke portion 1, which is distributed between coiling tooth 11, two neighboring coiling tooth 11, forms the first groove 12, coiling
Locating slot 111 is provided with tooth 11, the side wall of coiling tooth 11 is parallel with the radial center face of coiling tooth 11, the axis in yoke portion 1
The vertical line of the axis of yoke portion 1 is respectively positioned on the radial center face of coiling tooth 11 with the center of coiling tooth 11, passes through the inner side in boots portion 2
Be provided with the positioning convex 22 being engaged with locating slot 111, boots portion 2 towards being provided with the second groove 21 on the position of winding slot,
First groove 12 and the winding slot of the second groove 21 formation closing, the bottom of the second groove 21 is in ramp shaped, the horizontal stroke of positioning convex 22
Section is rounded, and magnetic isolation plate 3 is one kind in epoxy plate or aluminium sheet, and being provided at both ends with neck 23, magnetic isolation plate 3 for boots portion 2 is set
It is equipped with and rotates " L " the type buckle 31 fastened with neck 23.
The stator core is used for external rotor permanent magnet synchronous machine, is prevented by the cooperation of positioning convex 22 and locating slot 111
The boots portion 2 and yoke portion 1 socket-connected is relatively rotated, and the yoke portion 1 that 3 pairs of the magnetic isolation plate at the two ends of boots portion 2 is socketed in boots portion 2 is played
The effect of axial limiting, while magnetic isolation plate 3 can reduce the leakage field of stator core.First groove 12 and the second groove 21 formation around
Wire casing greatly reduces rule difficulty compared to monoblock type iron core of the prior art, and monoblock type iron core copper factor is typically most
For 70%, using the split type core structure, copper factor can be easily reached more than 85%, substantially increase copper factor, full
In the case of sufficient Same Efficieney demand, copper factor is higher, and the volume needed for the iron core of embedded equivalent conductor is just smaller, and iron core is got over
Small, the quality of the motor equipped with iron core is just smaller, i.e., the split type core structure significantly reduces the quality of motor, the first groove
12 and second the winding slot of remaining silent of the formation of groove 21 can substantially reduce rotor cogging torque, reduce vibration noise of motor.
180 ° of angle ɑ ＜ between two faces of the bottom of the second groove 21, form the ramp shaped structure towards outside, by the
The bottom of two grooves 21 is provided towards the ramp shaped structure in outside, expands the volume of winding slot, greatly reduces rule difficulty
Improve copper factor simultaneously higher.
Positioning convex 22 is the cylindric of circle in cross section so that boots portion 2 and yoke portion 1 will occur under the vibrations of motor
During relative rotation, the face that positioning convex 22 is in contact with locating slot 111 is relatively smooth, prevents the edges and corners stress of positioning convex 22
Larger and other positions stress is smaller and stress that produce is seriously uneven, and then prevents from causing positioning convex 22 to locating slot 111
Abrasion, extend stator core service life.
Epoxy plate and aluminium sheet are non-magnet material, are effectively reduced leakage field.
During assembling, " L " the type buckle 31 of magnetic isolation plate 3 is rotated in the neck 23 at the two ends for fastening to boots portion 2 so that magnetic isolation plate
3 and boots portion 2 fix in the axial direction, the two ends of yoke portion 1 being socketed in boots portion 2 offset with magnetic isolation plate 3, the structure of " L " type buckle 31
Simply, it is easy to production, reduction production difficulty and production cost.
Described above is only preferred embodiment of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to protection domain of the present utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (6)
1. a kind of external rotor electric machine is with split type closed slot stator core, it is characterised in that：The yoke portion being molded including split and set
The boots portion that is connected on the outside of yoke portion and the magnetic isolation plate for being connected to boots portion two ends, the center in the yoke portion, which is offered, to be socketed in rotating shaft
Through hole, the outside continuous uniform in the yoke portion, which is distributed between coiling tooth, two neighboring coiling tooth, forms the first groove, coiling
Locating slot is provided with tooth, the side wall of the coiling tooth is parallel with the radial center face of coiling tooth, the inner side in the boots portion is set
There is a positioning convex being engaged with locating slot, the boots portion is towards being provided with the second groove, described first on the position of winding slot
Groove and the winding slot of the second groove formation closing.
2. a kind of external rotor electric machine according to claim 1 is with split type closed slot stator core, it is characterised in that：It is described
The bottom of second groove is the ramp shaped structure towards outside.
3. a kind of external rotor electric machine according to claim 1 is with split type closed slot stator core, it is characterised in that：It is described
The circular in cross-section of positioning convex.
4. a kind of external rotor electric machine according to claim 1 or 2 or 3 is existed with split type closed slot stator core, its feature
In：The magnetic isolation plate is one kind in epoxy plate or aluminium sheet.
5. a kind of external rotor electric machine according to claim 1 is with split type closed slot stator core, it is characterised in that：It is described
Boots portion is provided at both ends with " L " the type buckle for being provided with neck, the magnetic isolation plate and fastening being rotated with neck.
6. a kind of external rotor electric machine according to claim 4 is with split type closed slot stator core, it is characterised in that：It is described
Boots portion is provided at both ends with " L " the type buckle for being provided with neck, the magnetic isolation plate and fastening being rotated with neck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720125488.XU CN206517178U (en) | 2017-02-10 | 2017-02-10 | A kind of external rotor electric machine is with split type closed slot stator core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720125488.XU CN206517178U (en) | 2017-02-10 | 2017-02-10 | A kind of external rotor electric machine is with split type closed slot stator core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206517178U true CN206517178U (en) | 2017-09-22 |
Family
ID=59866321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720125488.XU Expired - Fee Related CN206517178U (en) | 2017-02-10 | 2017-02-10 | A kind of external rotor electric machine is with split type closed slot stator core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206517178U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552831A (en) * | 2022-03-02 | 2022-05-27 | 常州神力电机股份有限公司 | Combined diesel motor rotor workpiece and assembling method thereof |
| CN114977554A (en) * | 2022-06-09 | 2022-08-30 | 湖州太平微特电机有限公司 | External rotor motor and manufacturing method |
-
2017
- 2017-02-10 CN CN201720125488.XU patent/CN206517178U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114552831A (en) * | 2022-03-02 | 2022-05-27 | 常州神力电机股份有限公司 | Combined diesel motor rotor workpiece and assembling method thereof |
| CN114977554A (en) * | 2022-06-09 | 2022-08-30 | 湖州太平微特电机有限公司 | External rotor motor and manufacturing method |
| CN114977554B (en) * | 2022-06-09 | 2023-06-23 | 湖州太平微特电机有限公司 | Outer rotor motor and manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 313000, No. 2599, weaving Avenue, Wuxing District, Zhejiang, Huzhou Patentee after: ZHEJIANG DADONGWU AUTO MOTOR CO.,LTD. Address before: The eight store in Zhejiang province Huzhou city Wuxing District 313000 three Bridge Road No. 685 Zhejiang dadongwu Auto Motor Co. Ltd. Patentee before: ZHEJIANG DADONGWU AUTO ELECTRIC MOTOR Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |