CN203942340U - A kind of stator punching of external rotor electric machine - Google Patents
A kind of stator punching of external rotor electric machine Download PDFInfo
- Publication number
- CN203942340U CN203942340U CN201420345813.XU CN201420345813U CN203942340U CN 203942340 U CN203942340 U CN 203942340U CN 201420345813 U CN201420345813 U CN 201420345813U CN 203942340 U CN203942340 U CN 203942340U
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- China
- Prior art keywords
- tooth
- line embedding
- embedding groove
- punching
- electric machine
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of stator punching of external rotor electric machine, comprise circular punching body and several tooth portions of evenly stretching out punching body periphery, between adjacent two tooth portions, form in order to be wound around the line embedding groove of stator coil, in the middle of punching body, offer axis hole, each tooth portion comprises tooth bottom, tooth crown and be connected to the tooth top between tooth bottom and tooth crown, it is characterized in that: the width of tooth bottom is greater than the width on tooth top, the width of rebate of line embedding groove is between 2.5mm to 3.5mm, the groove high altitude of line embedding groove is at 18mm to 25mm, this is simple in structure, coiling is convenient, effectively improve the groove area of line embedding groove and the copper factor after coiling, realize the object that improves electric efficiency and energy-saving effect.
Description
Technical field
The utility model relates to a kind of stator punching of external rotor electric machine, belongs to machine field.
Background technology
The stator punching of current external rotor electric machine, comprise circular punching body and several tooth portions of evenly stretching out punching body periphery, between adjacent two tooth portions, form in order to be wound around the line embedding groove of stator coil, but the size of this stator punching tooth portion and line embedding groove is reasonable not, and flute profile area is less, coiling is inconvenient, and after coiling, copper factor is low, the overall performance of external rotor electric machine is not high, and as vibrations, noise is larger, efficiency is lower.
Utility model content
Main purpose of the present utility model is to provide a kind of stator punching of external rotor electric machine, and this is simple in structure, and coiling is convenient, effectively improves the groove area of line embedding groove and the copper factor after coiling, realizes the object that improves electric efficiency and energy-saving effect.
Above-mentioned purpose is achieved by the following technical solution:
A kind of stator punching of external rotor electric machine, comprise circular punching body and several tooth portions of evenly stretching out punching body periphery, between adjacent two tooth portions, form in order to be wound around the line embedding groove of stator coil, in the middle of punching body, offer axis hole, each tooth portion comprises tooth bottom, tooth crown and is connected to the tooth top between tooth bottom and tooth crown, it is characterized in that: the width of tooth bottom is greater than the width on tooth top, the width of rebate of line embedding groove is between 2.5mm to 3.5mm, and the groove high altitude of line embedding groove is at 18mm to 25mm.
The bottom land of line embedding groove described above comprises the first chamfering forming between tooth bottom, both sides and punching body periphery and the outer arc limit that is connected to two punching bodies between the first chamfering.
The top of line embedding groove described above comprises the second chamfering forming between tooth top, both sides and tooth crown.
The radius of the second chamfering described above equal that the first chamfer radius equals 1/2nd.
The radius of the first chamfering described above is between 1.5mm to 4.0mm.
The quantity of tooth portion described above is 16.
The utility model compared with prior art tool has the following advantages:
1) width of tooth bottom is greater than the width on tooth top, the width of rebate of line embedding groove is between 2.5mm to 3.5mm, the groove high altitude of line embedding groove is at 18mm to 25mm, this is simple in structure, coiling is convenient, effectively improve the groove area of line embedding groove and the copper factor after coiling, realize the object that improves electric efficiency and energy-saving effect;
2) bottom land of line embedding groove comprises the first chamfering forming between tooth bottom, both sides and punching body periphery and the outer arc limit that is connected to two punching bodies between the first chamfering, this is simple in structure, can further improve the winding efficiency of motor, improve the copper factor after groove area and coiling;
3) top of line embedding groove comprises the second chamfering forming between tooth top, both sides and tooth crown, and this is simple in structure, can further improve the winding efficiency of motor, improves the copper factor after groove area and coiling;
4) radius of the first chamfering is between 1.5mm to 4.0mm, simple in structure, thereby improves the object that stator efficiency reaches energy efficient.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model stator punching;
Fig. 2 is A-A partial enlarged drawing in Fig. 1;
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of stator punching of external rotor electric machine, comprise circular punching body 1 and several tooth portions 2 of evenly stretching out punching body 1 periphery, between adjacent two tooth portions 2, form in order to be wound around the line embedding groove 3 of stator coil, in the middle of punching body 1, offer axis hole 4, each tooth portion 2 comprises tooth bottom 21, tooth crown 22 and be connected to tooth bottom 21 and tooth crown 22 between tooth top 23, the width L1 of tooth bottom 21 is greater than the width L2 on tooth top 23, the width of rebate L3 of line embedding groove 3 is between 2.5mm to 3.5mm, the groove high altitude L4 of line embedding groove 3 is at 18mm to 25mm, this is simple in structure, coiling is convenient, by each size of appropriate design stator punching, reach and improve the groove area of line embedding groove and the copper factor after coiling, realize the object that improves electric efficiency and energy-saving effect.
The width of rebate L3 of preferred line embedding groove 3 is between 2.8mm to 3.1mm, and the groove high altitude L4 of line embedding groove 3 is between 20mm to 22mm.
The bottom land of line embedding groove 3 comprises the first chamfering 211 forming between tooth bottom, both sides 21 and punching body 1 periphery and the outer arc limit 11 that is connected to two punching bodies 1 between the first chamfering 211.The top of line embedding groove 3 comprises the second chamfering 221 forming between tooth top 23, both sides and tooth crown 22.The radius R 2 of the second chamfering 221 equal that the first chamfering 211 radius Rs 1 equal 1/2nd.Radius R 1 scope of the first chamfering 211 is between 1.5mm to 4.0mm, the coil windings that is wound on line embedding groove 3 the insides can take line embedding groove 3, can take the first chamfering 211 and the second chamfering 221, appropriate design the first chamfering 211 and the second chamfering 221 are distributed with extremely important effect for guide line around winding, can further improve the winding efficiency of motor, improve the copper factor after groove area and coiling.
The radius R 1 of preferred the first chamfering 211 equals 2.8mm, and the radius R 2 of the second chamfering 221 equals 1.4mm.The quantity of tooth portion 2 is 16, and tooth portion 2 is circumferentially arranged in the periphery of punching body 1 equably.
Above-described is only execution modes more of the present utility model.For the person of ordinary skill of the art, not departing under the prerequisite of the utility model creation design, can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (6)
1. the stator punching of an external rotor electric machine, comprise circular punching body (1) and several tooth portions (2) of evenly stretching out punching body (1) periphery, between adjacent two tooth portions (2), form in order to be wound around the line embedding groove (3) of stator coil, in the middle of punching body (1), offer axis hole (4), each tooth portion (2) comprises tooth bottom (21), tooth crown (22) and be connected to tooth bottom (21) and tooth crown (22) between tooth top (23), it is characterized in that: the width (L1) of tooth bottom (21) is greater than the width (L2) of tooth top (23), the width of rebate (L3) of line embedding groove (3) is between 2.5mm to 3.5mm, the groove high altitude (L4) of line embedding groove (3) is at 18mm to 25mm.
2. the stator punching of a kind of external rotor electric machine according to claim 1, is characterized in that: the bottom land of line embedding groove (3) comprises the first chamfering (211) forming between tooth bottom, both sides (21) and punching body (1) periphery and the outer arc limit (11) that is connected to the punching body (1) between two the first chamferings (211).
3. the stator punching of a kind of external rotor electric machine according to claim 2, is characterized in that: the top of line embedding groove (3) comprises the second chamfering (221) forming between tooth top, both sides (23) and tooth crown (22).
4. the stator punching of a kind of external rotor electric machine according to claim 3, is characterized in that: the radius (R2) of the second chamfering (221) equal that the first chamfering (211) radius (R1) equals 1/2nd.
5. according to the stator punching of a kind of external rotor electric machine described in claim 2 or 3 or 4, it is characterized in that: radius (R1) scope of the first chamfering (211) is between 1.5mm to 4.0mm.
6. according to the stator punching of a kind of external rotor electric machine described in claim 1 or 2 or 3 or 4, it is characterized in that: the quantity of described tooth portion (2) is 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345813.XU CN203942340U (en) | 2014-06-26 | 2014-06-26 | A kind of stator punching of external rotor electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345813.XU CN203942340U (en) | 2014-06-26 | 2014-06-26 | A kind of stator punching of external rotor electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203942340U true CN203942340U (en) | 2014-11-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420345813.XU Expired - Fee Related CN203942340U (en) | 2014-06-26 | 2014-06-26 | A kind of stator punching of external rotor electric machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN203942340U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932424A (en) * | 2019-11-28 | 2020-03-27 | 珠海格力电器股份有限公司 | Stator core, motor and clothes treatment equipment |
| CN111277060A (en) * | 2018-12-05 | 2020-06-12 | 中车永济电机有限公司 | Double-fed wind driven generator rotor |
| CN112383157A (en) * | 2020-10-29 | 2021-02-19 | 青岛中加特电气股份有限公司 | Stator punching sheet, stator and motor |
| CN112994283A (en) * | 2021-01-05 | 2021-06-18 | 上海电气风电集团股份有限公司 | Stator reaches motor including it |
| WO2022110378A1 (en) * | 2020-11-27 | 2022-06-02 | 瑞声声学科技(深圳)有限公司 | Stator, motor, and water pump |
| WO2023097912A1 (en) * | 2021-12-03 | 2023-06-08 | 威灵（芜湖）电机制造有限公司 | Stator structure, motor, and electrical equipment |
-
2014
- 2014-06-26 CN CN201420345813.XU patent/CN203942340U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111277060A (en) * | 2018-12-05 | 2020-06-12 | 中车永济电机有限公司 | Double-fed wind driven generator rotor |
| CN110932424A (en) * | 2019-11-28 | 2020-03-27 | 珠海格力电器股份有限公司 | Stator core, motor and clothes treatment equipment |
| CN110932424B (en) * | 2019-11-28 | 2021-11-23 | 珠海格力电器股份有限公司 | Stator core, motor and clothes treatment equipment |
| CN112383157A (en) * | 2020-10-29 | 2021-02-19 | 青岛中加特电气股份有限公司 | Stator punching sheet, stator and motor |
| WO2022110378A1 (en) * | 2020-11-27 | 2022-06-02 | 瑞声声学科技(深圳)有限公司 | Stator, motor, and water pump |
| CN112994283A (en) * | 2021-01-05 | 2021-06-18 | 上海电气风电集团股份有限公司 | Stator reaches motor including it |
| WO2023097912A1 (en) * | 2021-12-03 | 2023-06-08 | 威灵（芜湖）电机制造有限公司 | Stator structure, motor, and electrical equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| C56 | Change in the name or address of the patentee |
Owner name: WANG ZIXIAN Free format text: FORMER NAME: YANG WENBO |
|
| CB03 | Change of inventor or designer information |
Inventor after: Wang Zixian Inventor after: Huang Shuqi Inventor after: Yang Wenbo Inventor after: Liao Tianqing Inventor before: Yang Wenbo Inventor before: Huang Shuqi Inventor before: Wang Zixian Inventor before: Liao Tianqing |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YANG WENBO HUANG SHUQI WANG ZIXIAN LIAO TIANQING TO: WANG ZIXIAN HUANG SHUQI YANG WENBO LIAO TIANQING |
|
| CP03 | Change of name, title or address |
Address after: 410000 Hunan province Changsha Kaifu District, Bayi Road No. 520 Building 1 room 704 Patentee after: Wang Zixian Patentee after: Huang Shuqi Patentee after: Yang Wenbo Patentee after: Liao Tianqing Address before: 410000, room 704, South Building, 30 Tianxin street, Tianxin District, Hunan, Changsha Patentee before: Yang Wenbo Patentee before: Huang Shuqi Patentee before: Wang Zixian Patentee before: Liao Tianqing |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141112 Termination date: 20150626 |
|
| EXPY | Termination of patent right or utility model |