CN103117610A - Magnetic-steel-embedded rotor structure of brushless motor - Google Patents
Magnetic-steel-embedded rotor structure of brushless motor Download PDFInfo
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- CN103117610A CN103117610A CN2013100389053A CN201310038905A CN103117610A CN 103117610 A CN103117610 A CN 103117610A CN 2013100389053 A CN2013100389053 A CN 2013100389053A CN 201310038905 A CN201310038905 A CN 201310038905A CN 103117610 A CN103117610 A CN 103117610A
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- magnet steel
- rotor core
- brushless electric
- rotor
- dovetail groove
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Abstract
The invention relates to the technical field of brushless motor manufacturing, in particular to a magnetic-steel-embedded rotor structure of a brushless motor. The magnetic-steel-embedded rotor structure comprises an iron rotor core and magnetic steel, and is characterized by further comprising aluminum plates used for fixing the iron rotor core and the magnetic steel, an even number of uniformly distributed dovetail grooves are reserved on the outer circumferential surface of the iron rotor core, the magnetic steel is structured in long bars, cross sections of the long bars are structured in dovetails matched with the dovetail grooves, and the magnetic steel is embedded into the dovetail grooves on the iron rotor core. By embedding the magnetic steel into the dovetail grooves, centrifugal force can be effectively overcome immediately when the magnetic steel rotates at high speed, and meanwhile, axial penetration cannot be caused. The magnetic-steel-embedded rotor structure of the brushless motor is simple in structural technology, convenient to operate, accurate in positioning, free of falling of the magnetic steel, high in production efficiency, low in working environment pollution, and capable of meeting rotating speed requirements on the high-speed brushless motor.
Description
Technical field
The present invention relates to brushless electric machine manufacturing technology field, specifically a kind of magnet steel embedded rotor structure of brushless electric machine.
Background technology
In the manufacturing of brushless electric machine, the mounting means of existing published rotor magnetic steel is: gluing, screw is fixed, the magnet steel cylindrical installs the technology modes such as fixed steelring additional.These several structural manufacturing processs are complicated, and cost is high.During rotor work, under the effect of centrifugal force, can occur coming off, cause motor to lose efficacy, reliability of structure is not high, can not satisfy the rotating speed requirement of high-speed brushless motor.
Summary of the invention
Purpose of the present invention provides a kind of magnet steel embedded rotor structure of brushless electric machine for overcoming the deficiencies in the prior art, has solved that complex process in above-mentioned prior art, cost are high, the problem such as occur coming off.
In order to achieve the above object, the present invention has designed a kind of magnet steel embedded rotor structure of brushless electric machine, comprise rotor core, magnet steel, it is characterized in that: also comprise the aluminium sheet for fixed rotor iron core and magnet steel, the periphery of described rotor core offers the equally distributed dovetail groove of even number, described magnet steel is the strip structure, and its cross section is the swallowtail-shaped structure that is complementary with dovetail groove, embeds magnet steel in the dovetail groove of described rotor core; Assembling is during rotor, and described magnet steel inserts from an end of rotor core until insert dovetail groove fully and adopt pin to be fastenedly connected, and then two end faces at described rotor core adopt respectively the aluminium sheet riveting to fix.
Further, the thickness of described aluminium sheet is d=3mm.
Further, the dovetail groove two ends of described rotor core are respectively Y type snap fastener and tapered buckle, and described Y type snap fastener and tapered buckle are crisscross arranged.
Further, the opening of described Y type snap fastener comprises the pin hole that is used for installing pin of a pair of Symmetrical Circular Arc composition, and the semicircle adjustment hole that is used for regulating magnet steel embedding degree of tightness that is connected with pin hole.
Further, the bottom of described Y type snap fastener and rotor core junction are arc-shaped structure, and its radius is R1=0.2mm.
Further, the bottom of described tapered buckle and rotor core junction are arc-shaped structure, and its radius is R2=0.5mm.
Further, two radiuss of corner in described magnet steel cross section are R3=0.6mm.
Further, the quantity of described magnet steel and dovetail groove is identical, is 6-10.
The present invention adopts magnet steel to embed the rotor structure of rotor core dovetail groove, make magnet steel can effectively overcome centrifugal force when High Rotation Speed, simultaneously can not produce axial wearing yet, structural manufacturing process is made simple, simple operation, accurate positioning the magnet steel obscission can not occur, and production efficiency is high, contamination is little, can satisfy the rotating speed requirement of high-speed brushless motor.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is end view of the present invention.
Fig. 3 is the structural representation of rotor iron core of the present invention.
Fig. 4 is the structural representation at I place in Fig. 3.
Fig. 5 is the structural representation at II place in Fig. 3.
Fig. 6 (a) is the structural representation of magnet steel in the present invention.
Fig. 6 (b) is the cutaway view of A-A direction in Fig. 6 (a).
Referring to Fig. 1---Fig. 6,1 is rotor core; 2 is magnet steel; 3 is aluminium sheet; 4 is dovetail groove; 5 is pin; 6 is Y type snap fastener; 7 is tapered buckle; 8 is pin hole; 9 is semicircle adjustment hole.
Embodiment
Now the present invention will be further described by reference to the accompanying drawings.
As Fig. 1---shown in Figure 6, the present invention includes rotor core 1, magnet steel 2, also comprise the aluminium sheet 3 for fixed rotor iron core 1 and magnet steel 2, the periphery of rotor core 1 offers the equally distributed dovetail groove 4 of even number, magnet steel is 2 strip structures, its cross section is the swallowtail-shaped structure that is complementary with dovetail groove 4, embeds magnet steel 2 in the dovetail groove 4 of rotor core 1; Assembling is during rotor, and magnet steel 2 inserts from an end of rotor core 1 until insert dovetail groove 4 fully and adopt pin 5 to be fastenedly connected, and then two end faces at rotor core 1 adopt respectively aluminium sheet 3 rivetings to fix, and the thickness of this aluminium sheet is d=3mm.
Claims (8)
1. the magnet steel embedded rotor structure of a brushless electric machine, comprise rotor core, magnet steel, it is characterized in that: also comprise the aluminium sheet for fixed rotor iron core and magnet steel, the periphery of described rotor core offers the equally distributed dovetail groove of even number, described magnet steel is the strip structure, its cross section is the swallowtail-shaped structure that is complementary with dovetail groove, embeds magnet steel in the dovetail groove of described rotor core; Assembling is during rotor, and described magnet steel inserts from an end of rotor core until insert dovetail groove fully and adopt pin to be fastenedly connected, and then two end faces at described rotor core adopt respectively the aluminium sheet riveting to fix.
2. the magnet steel embedded rotor structure of a kind of brushless electric machine according to claim 1, it is characterized in that: the thickness of described aluminium sheet is d=3mm.
3. the magnet steel embedded rotor structure of a kind of brushless electric machine according to claim 1 is characterized in that: the dovetail groove two ends of described rotor core are respectively Y type snap fastener and tapered buckle, and described Y type snap fastener and tapered buckle are crisscross arranged.
4. the magnet steel embedded rotor structure of a kind of brushless electric machine according to claim 3, it is characterized in that: the opening of described Y type snap fastener comprises the pin hole that is used for installing pin of a pair of Symmetrical Circular Arc composition, and the semicircle adjustment hole that is used for regulating magnet steel embedding degree of tightness that is connected with pin hole.
5. the magnet steel embedded rotor structure of according to claim 3 or 4 described a kind of brushless electric machines is characterized in that: the bottom of described Y type snap fastener and rotor core junction are arc-shaped structure, and its radius is R1=0.2mm.
6. the magnet steel embedded rotor structure of a kind of brushless electric machine according to claim 3 is characterized in that: the bottom of described tapered buckle and rotor core junction are arc-shaped structure, and its radius is R2=0.5mm.
7. the magnet steel embedded rotor structure of a kind of brushless electric machine according to claim 1 is characterized in that: two radiuss of corner in described magnet steel cross section are R3=0.6mm.
8. the magnet steel embedded rotor structure of a kind of brushless electric machine according to claim 1, it is characterized in that: the quantity of described magnet steel and dovetail groove is identical, is 6-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100389053A CN103117610A (en) | 2013-01-31 | 2013-01-31 | Magnetic-steel-embedded rotor structure of brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100389053A CN103117610A (en) | 2013-01-31 | 2013-01-31 | Magnetic-steel-embedded rotor structure of brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103117610A true CN103117610A (en) | 2013-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100389053A Pending CN103117610A (en) | 2013-01-31 | 2013-01-31 | Magnetic-steel-embedded rotor structure of brushless motor |
Country Status (1)
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| CN (1) | CN103117610A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104333160A (en) * | 2014-11-07 | 2015-02-04 | 浙江众邦机电科技有限公司 | Motor rotor |
| CN106505768A (en) * | 2016-12-30 | 2017-03-15 | 浙江众邦机电科技有限公司 | A kind of manufacture method of magneto, rotor and rotor |
| CN107591912A (en) * | 2017-08-30 | 2018-01-16 | 广东威灵电机制造有限公司 | Rotor core, motor, compressor and the refrigeration system with the compressor |
| CN107733206A (en) * | 2017-10-27 | 2018-02-23 | 江苏大学 | A kind of permanent magnetism body surface embedded magnetic Screw and its processing method |
| CN108011461A (en) * | 2017-12-27 | 2018-05-08 | 浙江伟康电机有限公司 | A kind of low voltage DC motor for retractable door |
| CN110492637A (en) * | 2019-08-28 | 2019-11-22 | 山西北方机械控股有限公司 | A kind of magnet steel fixing means and iron core magnetic steel structure |
| RU2818893C1 (en) * | 2023-11-24 | 2024-05-07 | Акционерное общество "Производственное Объединение Муромский Машиностроительный Завод" | Rotor of high-speed electric machine with permanent magnets |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201008107Y (en) * | 2007-02-14 | 2008-01-16 | 蔡国法 | Rotor for electric machine |
| CN201533204U (en) * | 2009-10-30 | 2010-07-21 | 宁波北斗科技有限公司 | Magnetic steel fixing structure of motor rotor |
| EP2466734A2 (en) * | 2010-12-16 | 2012-06-20 | Wealth Marching International Limited | Electric Motor |
| CN203135604U (en) * | 2013-01-31 | 2013-08-14 | 滁州市荣德电子科技有限公司 | Magnetic steel embedded rotor structure of brushless motor |
-
2013
- 2013-01-31 CN CN2013100389053A patent/CN103117610A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201008107Y (en) * | 2007-02-14 | 2008-01-16 | 蔡国法 | Rotor for electric machine |
| CN201533204U (en) * | 2009-10-30 | 2010-07-21 | 宁波北斗科技有限公司 | Magnetic steel fixing structure of motor rotor |
| EP2466734A2 (en) * | 2010-12-16 | 2012-06-20 | Wealth Marching International Limited | Electric Motor |
| CN203135604U (en) * | 2013-01-31 | 2013-08-14 | 滁州市荣德电子科技有限公司 | Magnetic steel embedded rotor structure of brushless motor |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104333160A (en) * | 2014-11-07 | 2015-02-04 | 浙江众邦机电科技有限公司 | Motor rotor |
| CN106505768A (en) * | 2016-12-30 | 2017-03-15 | 浙江众邦机电科技有限公司 | A kind of manufacture method of magneto, rotor and rotor |
| CN107591912A (en) * | 2017-08-30 | 2018-01-16 | 广东威灵电机制造有限公司 | Rotor core, motor, compressor and the refrigeration system with the compressor |
| CN107733206A (en) * | 2017-10-27 | 2018-02-23 | 江苏大学 | A kind of permanent magnetism body surface embedded magnetic Screw and its processing method |
| CN108011461A (en) * | 2017-12-27 | 2018-05-08 | 浙江伟康电机有限公司 | A kind of low voltage DC motor for retractable door |
| CN108011461B (en) * | 2017-12-27 | 2020-07-21 | 浙江伟康电机有限公司 | Low-voltage direct current motor for retractable door |
| CN110492637A (en) * | 2019-08-28 | 2019-11-22 | 山西北方机械控股有限公司 | A kind of magnet steel fixing means and iron core magnetic steel structure |
| RU2818893C1 (en) * | 2023-11-24 | 2024-05-07 | Акционерное общество "Производственное Объединение Муромский Машиностроительный Завод" | Rotor of high-speed electric machine with permanent magnets |
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Application publication date: 20130522 |