CN201910726U - Stator core and single-phase brushless direct-current motor with same - Google Patents
Stator core and single-phase brushless direct-current motor with same Download PDFInfo
- Publication number
- CN201910726U CN201910726U CN2010206680909U CN201020668090U CN201910726U CN 201910726 U CN201910726 U CN 201910726U CN 2010206680909 U CN2010206680909 U CN 2010206680909U CN 201020668090 U CN201020668090 U CN 201020668090U CN 201910726 U CN201910726 U CN 201910726U
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- magnetic pole
- stator core
- section
- tooth
- riveting
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- Expired - Fee Related
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Abstract
The utility model relates to a stator core for a single-phase brushless direct-current motor, which comprises an even number of self-riveting connecting blocks and a corresponding number of toothed magnetic poles which are connected with the self-riveting connecting blocks. The outer edge of each toothed magnetic pole of the toothed magnetic poles looks like a section of parabola. One end of the section of parabola is a vertex of the parabola. Compared with the prior art which is characterized in that the outer edge of each toothed magnetic pole comprises a first arc section, a second arc section and a connecting section which connects the first arc section and the second arc section, the stator core has the advantages of simple structure and low manufacturing cost. The single-phase brushless direct-current motor with the stator core has the advantages that uneven air gaps between the stator core and the N magnetic pole of a rotor and between the stator core and the S magnetic pole of the rotor are small, starting torque is large, efficiency is high and the rotor is in a maglev state during rotation.
Description
Technical field
The utility model relates to a kind of brshless DC motor, particularly a kind of stator core and have the single-phase winding brshless DC motor of this stator core.
Background technology
Granted publication number discloses a kind of stator iron-core lamination for the Chinese utility model patent of CN2857308Y and comprises the brushless single phase motor of this stator iron-core lamination.This stator iron-core lamination comprise ring-shaped yoke portion block, be connected with ring-shaped yoke portion block from riveting connect block and with the tooth magnetic pole that is connected the block connection from riveting, be characterized in that the tooth magnetic pole comprises first segmental arc, second segmental arc and connects first segmental arc and the linkage section of second segmental arc, the extended line of second segmental arc and first segmental arc does not coincide.The brushless single phase motor of the stator core that the stator iron-core lamination closed assembly that being equipped with is provided by a plurality of the utility model forms can produce non-uniform gap, solves the startup dead unit problem of brushless single phase motor.In a preferred embodiment, this first segmental arc and this second segmental arc are circular arc.But this tooth magnetic pole comprises first segmental arc, second segmental arc and connects first segmental arc and the linkage section of second segmental arc, complex structure, manufacturing cost height; And this first segmental arc and this second segmental arc are circular arc, and because of the radius of curvature of circular arc each point is constant, the non-uniform gap that is produced is excessive, make that therefore the starting torque of brushless single phase direct current machine with this stator core is little, and efficient reduces.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, starting torque the big and higher stator core of efficient.
Another purpose of the present utility model be to provide a kind of have simple in structure, starting torque is big and the brushless single phase direct current machine of the stator core that efficient is higher.
For this reason, the stator core that is used for the brushless single phase direct current machine of the present utility model, comprise that even number connects block and is connected corresponding the tooth magnetic pole that block connects with these from riveting from riveting, it is characterized in that, the outer rim of each tooth magnetic pole of these tooth magnetic poles is shaped as one section parabola, and the parabolical end of this section is parabolical summit.
For this reason, brushless single phase direct current machine of the present utility model, comprise that one has many rotors to the alternate setting of N magnetic pole S magnetic pole, one stator iron core, a plurality of stator winding and a rotor position detector, this stator core comprises that even number connects block and is connected corresponding the tooth magnetic pole that block connects with these from riveting from riveting, this corresponding tooth number of magnetic poles equates with this N number of magnetic poles and this S number of magnetic poles, these a plurality of stator winding are single-phase winding, it is characterized in that, on adjacent this tooth magnetic pole institute around this stator winding around on the contrary, the outer rim of each tooth magnetic pole of these tooth magnetic poles is shaped as one section parabola, and the parabolical end of this section is parabolical summit.
The stator core that is used for the brushless single phase direct current machine of the present utility model, the outer rim shape of its each tooth magnetic pole only is one section parabola, comprise first segmental arc, second segmental arc and be connected first segmental arc with the outer rim of each tooth magnetic pole and compare with the prior art of the linkage section of second segmental arc, its simple structure, low cost of manufacture.Brushless single phase direct current machine with stator core of the present utility model, the outer rim of each tooth magnetic pole is shaped as parabola, the prior art that is shaped as circular arc line with the outer rim of each tooth magnetic pole is compared, and the non-uniform gap that is produced between the N magnetic pole S magnetic pole of rotor is less, starting torque is bigger, and efficient is higher.Brushless single phase direct current machine with stator core of the present utility model, on the adjacent teeth magnetic pole institute around stator winding around on the contrary, have in the brushless single phase direct current machine running of stator core of the present utility model when rotor position detector detects the position of the N magnetic pole of rotor or S magnetic pole, N magnetic pole or instantaneous corresponding N magnetic pole or the S magnetic pole of becoming of S magnetic pole tooth magnetic pole vis-a-vis with rotor, on the whole circumference of rotor, produce uniform torque, make rotor rotation, and be in magnetic suspension state.
Description of drawings
Fig. 1 is the organigram of a kind of embodiment of brushless single phase direct current machine of the present utility model.
Embodiment
According to execution mode shown in Figure 1, the present invention relates to a brushless single phase direct current machine 100, this brushless single phase direct current machine 100 comprises that one has many rotor 110, a stator iron core 120, a plurality of stator winding 130 and rotor position detectors 140 to the alternate setting of N magnetic pole S magnetic pole.Stator core 120 comprises that even number connects block 121 and is connected corresponding the tooth magnetic pole 122 that block 121 connects with these from riveting from riveting.The number of these corresponding tooth magnetic pole 122 equates with the number of N number of magnetic poles and this S magnetic pole.These stator winding 130 are single-phase winding, on the adjacent teeth magnetic pole 122 institute around stator winding 130 around on the contrary.The outer rim of each tooth magnetic pole 122 of these tooth magnetic poles 122 is shaped as one section parabola 1221.This section parabola 1221 satisfies parabolic standard equation y
2=2px.One end O of this section parabola 1221 is parabolical summit, the position of other end A and parabolic standard equation y
2Determining of the focus parameter p of=2px is relevant with the value of independent variable x.When require this section parabola 1221 long and and the N magnetic pole S magnetic pole of rotor between the non-uniform gap that produced hour, determine that then the value of focus parameter p is big slightly, the value of independent variable x is big slightly; When require this section parabola 1221 short and and the N magnetic pole S magnetic pole of rotor between the non-uniform gap that produced hour, determine that then the value of focus parameter p is big slightly, the value of independent variable x is slightly little.
Claims (2)
1. stator core that is used for the brushless single phase direct current machine, comprise that even number connects block and is connected corresponding the tooth magnetic pole that block connects with these from riveting from riveting, it is characterized in that, the outer rim of each tooth magnetic pole of these tooth magnetic poles is shaped as one section parabola, and the parabolical end of this section is parabolical summit.
2. brushless single phase direct current machine, comprise that one has many rotors to the alternate setting of N magnetic pole S magnetic pole, one stator iron core, a plurality of stator winding and a rotor position detector, this stator core comprises that even number connects block and is connected corresponding the tooth magnetic pole that block connects with these from riveting from riveting, this corresponding tooth number of magnetic poles equates with this N number of magnetic poles and this S number of magnetic poles, these a plurality of stator winding are single-phase winding, it is characterized in that, on adjacent this tooth magnetic pole institute around this stator winding around on the contrary, the outer rim of each tooth magnetic pole of these tooth magnetic poles is shaped as one section parabola, and the parabolical end of this section is parabolical summit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206680909U CN201910726U (en) | 2010-12-20 | 2010-12-20 | Stator core and single-phase brushless direct-current motor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206680909U CN201910726U (en) | 2010-12-20 | 2010-12-20 | Stator core and single-phase brushless direct-current motor with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201910726U true CN201910726U (en) | 2011-07-27 |
Family
ID=44302925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206680909U Expired - Fee Related CN201910726U (en) | 2010-12-20 | 2010-12-20 | Stator core and single-phase brushless direct-current motor with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201910726U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739136A (en) * | 2012-07-10 | 2012-10-17 | 浙江大学 | Intermittent fillet control method for single-phase brushless direct-current motors |
| CN108702038A (en) * | 2016-02-16 | 2018-10-23 | 联宝兴业有限公司 | Disc type electric machine, electric vehicle and its control method |
-
2010
- 2010-12-20 CN CN2010206680909U patent/CN201910726U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102739136A (en) * | 2012-07-10 | 2012-10-17 | 浙江大学 | Intermittent fillet control method for single-phase brushless direct-current motors |
| CN102739136B (en) * | 2012-07-10 | 2015-05-27 | 浙江大学 | Intermittent fillet control method for single-phase brushless direct-current motors |
| CN108702038A (en) * | 2016-02-16 | 2018-10-23 | 联宝兴业有限公司 | Disc type electric machine, electric vehicle and its control method |
| CN108702038B (en) * | 2016-02-16 | 2020-11-03 | 联宝兴业有限公司 | Disc motor, electric vehicle and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FOSHAN SHUNDE WEIYUAN ELECTRICAL APPLIANCE CO., LT Free format text: FORMER OWNER: FOSHAN SHUNDE WEIYUAN MOTOR CO., LTD. Effective date: 20140214 |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 528000 FOSHAN, GUANGDONG PROVINCE TO: 528322 FOSHAN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140214 Address after: 528322. Three of block C10 of the intensive industrial district of Leliu port, Leliu street, Shunde District, Guangdong, Foshan Patentee after: Foshan Shunde District Weiyuan Electrical Appliances Co., Ltd. Address before: 528000 Guangdong Province, Foshan city Shunde District Leliu Ren Hai Road No. 5 in the village of Patentee before: Foshan Shunde District Weiyuan Motor Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20161220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |