CN2583870Y - Outside rotor brushless dc motor - Google Patents
Outside rotor brushless dc motor Download PDFInfo
- Publication number
- CN2583870Y CN2583870Y CN 02258538 CN02258538U CN2583870Y CN 2583870 Y CN2583870 Y CN 2583870Y CN 02258538 CN02258538 CN 02258538 CN 02258538 U CN02258538 U CN 02258538U CN 2583870 Y CN2583870 Y CN 2583870Y
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- CN
- China
- Prior art keywords
- rotor
- stator
- main shaft
- cylindrical shell
- brushless
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- 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
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Abstract
The utility model relates to a brushless DC motor of which the load can be directly driven by the outside rotor. The utility model comprises a rotor, a main shaft, a stator, and a Hall circuit board, wherein, the rotor is composed of a rotor cylinder and a magnetic shoe which is spliced on the inner wall of the rotor cylinder, the stator is arranged in a cavity of the rotor, an air gap is arranged between the rotor and the stator, a Hall element is arranged on the side of the magnetic shoe, one end of the main shaft is fixed with a main shaft seat, the rotor cylinder is formed by stretching a steel plate one time, a stator support frame is fixedly connected with the inner part of an iron core hole of the stator, the main shaft which is arranged in a cavity of the stator support frame is movably connected with the stator support frame by two bearings and is fixedly connected with the rotor cylinder by the main shaft seat, one end of an opening of the rotor cylinder is provided with a cover plate which is in clearance fit with the rotor cylinder, the cover plate is fixed on the end surface of the stator support frame, the Hall circuit board which is fixed on an insulating support frame of the stator is also positioned on one end of the opening of the rotor cylinder, and the outer part of the rotor cylinder is provided with a flange which is in interference fit with the rotor cylinder. The utility model has the advantages of simple structure, stable running, long service life of the motor, and easy fabrication.
Description
Technical field
The utility model relates to a kind of brushless DC motor, is applicable to blower fan.
Background technology
Brushless DC motor has obtained to use extremely widely at present, and the rotor of brushless DC motor is a permanent magnet of being made certain number of pole-pairs by permanent magnetic material, and armature winding is fixed in the stator coring groove, adopts heterogeneous symmetric winding.Power to the motor stator winding via switching circuit by DC power supply, the motor rotor position sensor also provides signal to go power switch component in the trigger switch circuit to make it conducting or ends, each is switched on one by one mutually and produces electric current, interact with the rotor magnetic pole main field, produce torque, thus the rotation of control motor.Known external rotor brushless DC motor is made up of housing, rotor, stator, Hall circuit, main shaft etc., and rotor is in the outside of stator, and main shaft is provided with axle bed, and axle bed adopts interference fit with being connected of rotor, and load is driven by motor main shaft.
The utility model content
The purpose of this utility model is to propose the brushless DC motor that a kind of load can directly be driven by external rotor.
The utlity model has and comprise rotor, main shaft, stator and Hall circuit plate, rotor is made up of rotor cylindrical shell and the magnetic shoe that is bonded on the cylinder inboard wall, stator is in the rotor chamber, has air gap between rotor and the stator, Hall element is in the side of a magnetic shoe, one end of main shaft is fixed with spindle drum, for achieving the above object, it is to be shaped by the steel plate one-off drawing that the utility model is taked the rotor cylindrical shell, the iron core hole internal fixation of stator is connected with stator support, main shaft is arranged in the stator support chamber and is dynamically connected and fixedlys connected with the rotor cylindrical shell by spindle drum by two bearings and stator support, one end of rotor cartridge openings is provided with it and is the cover plate of matched in clearance, cover plate is fixed on the end face of stator support, the Hall circuit plate is fixed on the insulation framework of stator and is positioned at an end of rotor cartridge openings, the ring flange of the outer setting interference fit of rotor cylindrical shell.
Above-mentioned rotor cylindrical shell adopts the stretch forming of 4mm steel plate.
The employing of fixedlying connected of above-mentioned spindle drum and rotor cylindrical shell is welded.
Above-mentioned bearing adopts the ceramic balls bearing.
The said stator core insulating tube is an injection molded layers.
Above-mentioned on main shaft and the inboard that is positioned at the bearing of rotor cartridge openings one side be provided with elastic washer and adjust packing ring.
The utlity model has following advantage:
1, simplify the structure: the rotor cylindrical shell is the main body of rotor, is again the shell of motor, plays the effect of power output again.
2, improved product quality: because the rotor cylindrical shell is to be shaped by the steel plate one-off drawing, the rotor cylindrical shell is beated little, compares with the shaft power motor, moves more steady.The axle sleeve of main shaft adopts weldering to be connected with rotor case, takes interference fit to compare with the axle sleeve and the rotor case of main shaft, and weldering connects the rigidity that can improve rotor case and axle sleeve joint face, helps the raising of motor quality; And adopt the ceramic balls bearing, and improve bearing useful life greatly, thereby further guaranteed product quality, improved motor useful life.
3, improved operating efficiency: stator core insulation adopts an injection moulding to form, and fully automatic wire winding machine directly on iron core teeth, is increased work efficiency enamelled wire.
Description of drawings
Fig. 1 is the utility model configuration diagram;
Fig. 2 is an insulation core structure diagrammatic sketch.
Embodiment
Embodiment shown in the drawings has rotor 1, main shaft 3, stator 4 and Hall circuit plate 9, rotor 1 is made up of rotor cylindrical shell 1-1 and 6 magnetic shoe 1-2, rotor cylindrical shell 1-1 adopts 4mm steel plate one-off drawing to be shaped, adopt the 4mm steel plate both can guarantee that the rotor cylindrical shell had good magnetic property, and magnetic resistance is moderate, the two ends of rotor cylindrical shell 1-1 are respectively openend and back cover end, magnetic shoe 1-2 is bonded on the cylinder inboard wall, stator 4 is in rotor 1 chamber, has air gap between rotor and the stator, stator is by iron core 4-1, insulation framework 4-2, armature winding is formed, and stator core 4-1 insulating barrier is injection molded layers 4-1-1, adopts an injection moulding to form.Hall circuit plate 9 is installed in an end that is in rotor cylindrical shell 1-1 opening on the insulation framework 4-2 of stator, and Hall element 7 is installed on the Hall circuit plate 9 and is in the side of a magnetic shoe.The iron core 4-1 hole internal fixation of stator 4 is connected with stator support 14, main shaft 3 is arranged in stator support 14 chambeies and by two ceramic balls bearing 5-1,5-2 and stator support 14 and is dynamically connected, ceramic balls bearing 5 is a kind of novel ball bearings, supply is arranged on the market, it has good abrasion resistance, and the corrosion of anti-electromagnetism.One end of main shaft 3 is fixed with spindle drum 2, and main shaft 3 is fixedlyed connected with rotor cylindrical shell 1-1 by spindle drum 2, adopts high-frequency welding between spindle drum 2 and rotor cylindrical shell 1-1.One end of rotor cylindrical shell 1-1 opening is provided with it and is the cover plate 11 of matched in clearance, and cover plate 11 is fixed on the end face of stator support 14, the ring flange 8 of the outer setting interference fit of rotor cylindrical shell 1-1.On main shaft 3 and the inboard that is positioned at the bearing 5-2 of rotor cylindrical shell 1-1 opening one end be provided with elastic washer 13 and adjust packing ring 12.The control device of motor is arranged on the outside of motor, is connected by connector 11.
Claims (6)
1, a kind of external rotor brushless DC motor, comprise rotor (1), main shaft (3), stator (4) and Hall circuit plate (9), rotor (1) is made up of rotor cylindrical shell (1-1) and the magnetic shoe (1-2) that is bonded on the cylinder inboard wall, stator (4) is in rotor (1) chamber, has air gap between rotor (1) and the stator (4), Hall element (7) is in the side of a magnetic shoe, one end of main shaft (3) is fixed with spindle drum (2), it is characterized in that: rotor cylindrical shell (1-1) is to be shaped by the steel plate one-off drawing, the iron core hole internal fixation of stator (4) is connected with stator support (14), main shaft (3) is arranged in stator support (14) chamber and passes through two bearings (5-1,5-2) be dynamically connected with stator support (14), the spindle drum (2) of main shaft (3) and rotor cylindrical shell (1-1) welding, one end of rotor cylindrical shell (1-1) opening is provided with it and is the cover plate of matched in clearance (11), cover plate (11) is fixed on the end face of stator support (14), and Hall circuit plate (9) is fixed on the end that stator (14) insulation framework (4-2) went up and be positioned at rotor cylindrical shell (1-1) opening.
2, external rotor brushless DC motor according to claim 1 is characterized in that: the ring flange (8) of the outer setting interference fit of rotor cylindrical shell (1-1).
3, external rotor brushless DC motor according to claim 2 is characterized in that: go up and the inboard that is positioned at the bearing (5-2) of rotor cylindrical shell (1-1) opening one side is provided with elastic washer (13) and adjustment packing ring (14) at main shaft (3).
4, external rotor brushless DC motor according to claim 1 is characterized in that: bearing (5) adopts the ceramic balls bearing.
5, external rotor brushless DC motor according to claim 1 is characterized in that: stator core (4-1) insulating barrier is injection molded layers (4-1-1).
6, external rotor brushless DC motor according to claim 1 is characterized in that: rotor cylindrical shell (1-1) adopts the stretch forming of 4mm steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02258538 CN2583870Y (en) | 2002-11-14 | 2002-11-14 | Outside rotor brushless dc motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02258538 CN2583870Y (en) | 2002-11-14 | 2002-11-14 | Outside rotor brushless dc motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2583870Y true CN2583870Y (en) | 2003-10-29 |
Family
ID=33726242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02258538 Expired - Fee Related CN2583870Y (en) | 2002-11-14 | 2002-11-14 | Outside rotor brushless dc motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2583870Y (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100338855C (en) * | 2003-12-18 | 2007-09-19 | 日本电产株式会社 | Motor |
| WO2010006519A1 (en) * | 2008-07-14 | 2010-01-21 | 许晓华 | Assembling structure of a hall device in a brushless dc motor |
| CN104009606A (en) * | 2014-03-18 | 2014-08-27 | 昆山航天林泉电机有限公司 | Integrated brushless direct current motor device for scooter |
| CN104009607A (en) * | 2014-04-03 | 2014-08-27 | 昆山航天林泉电机有限公司 | Outer rotor type brushless direct-current motor for vehicle-mounted power |
| CN104505966A (en) * | 2014-12-30 | 2015-04-08 | 深圳市双环全新机电股份有限公司 | Outer rotor brushless motor |
| CN105390311A (en) * | 2015-12-22 | 2016-03-09 | 北京北开电气股份有限公司 | Rotary magnetic device |
| CN106640702A (en) * | 2016-11-29 | 2017-05-10 | 佛山市顺德区卓高电机制造有限公司 | Direct-current brushless fan device |
| CN106787580A (en) * | 2017-03-29 | 2017-05-31 | 大连碧蓝节能环保科技有限公司 | Pin-connected panel micro brushless dc motor |
| CN106787523A (en) * | 2016-12-16 | 2017-05-31 | 江苏浩元动力科技有限公司 | A kind of electric machine winding skeleton structure and method for winding |
| CN107210627A (en) * | 2015-01-06 | 2017-09-26 | Lg伊诺特有限公司 | Stator core and the motor using the stator core |
| CN108418379A (en) * | 2018-05-03 | 2018-08-17 | 湖州越球电机有限公司 | A kind of BLDC motors of low cost |
| CN111371271A (en) * | 2020-04-13 | 2020-07-03 | 浙江永昌电气股份有限公司 | Plastic package method for DDM stator and rotor |
| CN111740549A (en) * | 2019-03-25 | 2020-10-02 | 日本电产伺服有限公司 | Motor and method for manufacturing motor |
| CN113839538A (en) * | 2021-09-29 | 2021-12-24 | 东莞市吉铼升电机股份有限公司 | Brushless motor of rotating robot |
| CN114243981A (en) * | 2022-01-10 | 2022-03-25 | 卧龙电气驱动集团股份有限公司 | Permanent magnet outer rotor motor |
-
2002
- 2002-11-14 CN CN 02258538 patent/CN2583870Y/en not_active Expired - Fee Related
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100338855C (en) * | 2003-12-18 | 2007-09-19 | 日本电产株式会社 | Motor |
| WO2010006519A1 (en) * | 2008-07-14 | 2010-01-21 | 许晓华 | Assembling structure of a hall device in a brushless dc motor |
| CN104009606B (en) * | 2014-03-18 | 2017-12-29 | 苏州航天林泉电机有限公司 | Scooter integrated brushless DC motor device |
| CN104009606A (en) * | 2014-03-18 | 2014-08-27 | 昆山航天林泉电机有限公司 | Integrated brushless direct current motor device for scooter |
| CN104009607A (en) * | 2014-04-03 | 2014-08-27 | 昆山航天林泉电机有限公司 | Outer rotor type brushless direct-current motor for vehicle-mounted power |
| CN104505966A (en) * | 2014-12-30 | 2015-04-08 | 深圳市双环全新机电股份有限公司 | Outer rotor brushless motor |
| CN107210627A (en) * | 2015-01-06 | 2017-09-26 | Lg伊诺特有限公司 | Stator core and the motor using the stator core |
| US11699928B2 (en) | 2015-01-06 | 2023-07-11 | Lg Innotek Co., Ltd. | Stator core and motor using the same |
| US11005314B2 (en) | 2015-01-06 | 2021-05-11 | Lg Innotek Co., Ltd. | Stator core and motor using the same |
| US11309751B2 (en) | 2015-01-06 | 2022-04-19 | Lg Innotek Co., Ltd. | Stator core and motor using the same |
| CN107210627B (en) * | 2015-01-06 | 2020-03-27 | Lg伊诺特有限公司 | Stator core and motor using the same |
| US10622850B2 (en) | 2015-01-06 | 2020-04-14 | Lg Innotek Co., Ltd. | Stator core and motor using the same |
| CN105390311A (en) * | 2015-12-22 | 2016-03-09 | 北京北开电气股份有限公司 | Rotary magnetic device |
| CN106640702A (en) * | 2016-11-29 | 2017-05-10 | 佛山市顺德区卓高电机制造有限公司 | Direct-current brushless fan device |
| CN106787523A (en) * | 2016-12-16 | 2017-05-31 | 江苏浩元动力科技有限公司 | A kind of electric machine winding skeleton structure and method for winding |
| CN106787580B (en) * | 2017-03-29 | 2018-10-12 | 大连碧蓝节能环保科技有限公司 | Pin-connected panel micro brushless dc motor |
| CN106787580A (en) * | 2017-03-29 | 2017-05-31 | 大连碧蓝节能环保科技有限公司 | Pin-connected panel micro brushless dc motor |
| CN108418379A (en) * | 2018-05-03 | 2018-08-17 | 湖州越球电机有限公司 | A kind of BLDC motors of low cost |
| CN108418379B (en) * | 2018-05-03 | 2024-03-01 | 湖州越球电机有限公司 | Low-cost BLDC motor |
| CN111740549A (en) * | 2019-03-25 | 2020-10-02 | 日本电产伺服有限公司 | Motor and method for manufacturing motor |
| CN111740549B (en) * | 2019-03-25 | 2022-10-04 | 日本电产伺服有限公司 | Motor and method for manufacturing motor |
| CN111371271A (en) * | 2020-04-13 | 2020-07-03 | 浙江永昌电气股份有限公司 | Plastic package method for DDM stator and rotor |
| CN111371271B (en) * | 2020-04-13 | 2022-03-22 | 浙江永昌电气股份有限公司 | Plastic package method for DDM stator and rotor |
| CN113839538A (en) * | 2021-09-29 | 2021-12-24 | 东莞市吉铼升电机股份有限公司 | Brushless motor of rotating robot |
| CN114243981A (en) * | 2022-01-10 | 2022-03-25 | 卧龙电气驱动集团股份有限公司 | Permanent magnet outer rotor motor |
| CN114243981B (en) * | 2022-01-10 | 2023-05-12 | 卧龙电气驱动集团股份有限公司 | Permanent magnet outer rotor motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |