CN202721588U - Disc type permanent magnet brushless direct current motor with iron core-free and sensor-free properties - Google Patents
Disc type permanent magnet brushless direct current motor with iron core-free and sensor-free properties Download PDFInfo
- Publication number
- CN202721588U CN202721588U CN 201220379628 CN201220379628U CN202721588U CN 202721588 U CN202721588 U CN 202721588U CN 201220379628 CN201220379628 CN 201220379628 CN 201220379628 U CN201220379628 U CN 201220379628U CN 202721588 U CN202721588 U CN 202721588U
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- spindle
- axle
- circular groove
- sensorless
- 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
Images
Landscapes
- Brushless Motors (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to a disc type permanent magnet brushless direct current motor with iron core-free and sensor-free properties. The disc type direct current motor comprises a shaft (1), a left terminal cover assembly (2), at least one set of combination unit (3) formed by a spindle (307), an annular casing (309), and two pairs of rotor assemblies (31), and a right terminal cover assembly (4); and each set of combination unit (3) formed by the spindle (307), the annular casing (309), and the rotor assemblies (31) includes two pairs of rotor assemblies (31) with the same specification. The spindle (307) is provided with a first circular groove (301) and a second circular groove (302); the rotor assemblies (31) are arranged inside the first circular groove (301) and the second circular groove (302). In addition, the rotor assemblies (31) include rotor plates (312), a plurality of permanent magnets (313) and a plurality of permanent magnet clamp devices (314); the permanent magnets (313) and the permanent magnet clamp devices (314) are symmetrically and fixedly arranged on the same planes of the rotor plates (312) at successive intervals relatively to the centers of the circles of the rotor plates (312). According to the utility model, the provided direct current motor has advantages of light weight, small volume, simple structure, convenient product manufacturing and high efficiency.
Description
Technical field
The utility model relates to a kind of disc style D. C. motor, specially refers to a kind of iron-core-free sensorless disc style D. C. motor.
Background technology
Existing permanent magnet DC motor, adopt the radial magnetic field structure, by spindle unshakable in one's determination being arranged, rotor, rotating shaft, the compositions such as base more.There are the following problems for this structural electromotor: 1. volume is large, weight is large; 2. existence unshakable in one's determination increases volume, weight; Loss is large, efficient is low; 3. existence unshakable in one's determination increases iron loss, material consumption, not environmental protection etc.; 4. the electric machine winding groove needs manual polishing, manually roll off the production line, and dipping lacquer, oven dry etc., not environmental protection of the course of processing, labour intensity is large.
The utility model content
The utility model provides a kind of technical scheme, has overcome the shortcoming of the existing permanent magnet DC motor existence of mentioning in the background technology, accomplishes that wide cut is efficient, energy-conservation, material-saving.The technical solution of the utility model is as follows:
A kind of permanent magnet iron coreless sensorless disc style D. C. motor, comprise axle 1, and be located in successively from left to right the left terminal cap assemblies 2 on the axle 1, at least one group of sub-assembly 3, right terminal cap assemblies 4 that is formed by the rotor 31 of two pairs of same specifications of spindle 307-toroidal shell 309-.Also be embedded with the motor winding in the spindle 307; Toroidal shell 309 is set in spindle 307 outsides; Two end faces of spindle 307 are provided with the first circular groove 301 and the second circular groove 302 with 307 one-tenth integral body of spindle, two same specifications vertically; Two pairs of rotor assembly 31 pass respectively axle 1 and are built in the first circular groove 301 and the second circular groove 302; Be provided with some terminals 308 that power supply machine winding and winding leading-out wire use on described spindle 307 lateral walls.
Further, described rotor assembly 31 comprises screw 311, rotor disk 312, some permanent magnets 313, and some permanent magnet fasteners 314; The first corner cut 3131 that described permanent magnet 313 roughly becomes is wide at the top and narrow at the bottom, there is same size at the two ends, top and the second cutting 3132 fan-shaped; Described permanent magnet fastener 314 roughly becomes up-narrow and down-wide, and dual-side has respectively the trapezoidal of the first indent 3141 and the second indent 3142; Permanent magnet 313 is fixedly installed on the same plane of rotor disk 312 with respect to rotor disk 312 center of circle symmetries; Between each permanent magnet 313 identical interval is arranged, permanent magnet fastener 314 embeds and is arranged in these intervals; The outer wide place of permanent magnet fastener 314 is provided with through hole 3143, is provided with the some screw holes 316 relative with through hole 3143 on the rotor disk 312, and each fastener 314 and rotor disk 312 removably connect by screw 311; The first indent 3141 of every adjacent two fasteners 314 and the second indent 3142 be respectively near the first corner cut 3131 and second cutting 3132 of each permanent magnet 313, thereby along fastener 314 axial direction fixed permanent magnets 313.
Further: any one external diameter of described spindle 307 first circular grooves 301 or the second circular groove 302 and the ratio of its corresponding internal diameter are 1.732-2.2; Any one the interior edge of outside end face of described the first circular groove 301 and the second circular groove 302 highly is lower than the outer height.
Further, be provided with the keyway 315 that rotor disk 312 is fixed on axle 1 in the middle of described rotor disk 312 centers of circle, described axle 1 stage casing is provided with the external tooth 11 that is meshed with described keyway 315.
Further, described keyway 315 is spline.
Further, described left terminal cap assemblies 2 and right terminal cap assemblies 4 are same size; Described left terminal cap assemblies 2 comprises left bearing 21, left axle sleeve 22, reaches the left terminal lid 23 of being made by cast aluminium or cast iron; Described left bearing 21 is set in axle 1 and the left terminal lid 23 inboard gaps that form; Left axle sleeve 22 is near left bearing 21, be set on the axle 1 inwardly;
Described right terminal cap assemblies 4 comprises right bearing 41, right axle sleeve 42, reaches the right terminal lid 43 of being made by cast aluminium or cast iron; Described right bearing 41 is set in axle 1 and the right terminal lid 43 inboard gaps that form; Right axle sleeve 42 is near right bearing 41, be set on the axle 1 inwardly.
Further, described left terminal lid 23 can be symmetrically arranged with some left heat radiation through holes 231 that roughly are in strip; The right terminal lid 43 relative centers of circle can be symmetrical arranged right heat radiation through hole 431.
Further, described toroidal shell 309 both sides end faces evenly are provided with some screw holes 306 along the center of circle of toroidal shell 309.
Further, also comprise some screws 5, screw 5 is detachably connected with two end faces of toroidal shell 309 left terminal lid 23 and right terminal lid 43 respectively by some screw holes 306, make whole permanent magnet iron coreless sensorless disc style D. C. motor be linked to be as a whole.
Further.Also be provided with the some through holes 303 that pass for the nut on the through hole 3091 that holds some terminals 308 and the confession spindle 307 on described toroidal shell 309 lateral surfaces.
The utility model is owing to having adopted the axial magnetic field design, iron-core-free, non-carbonate, simultaneously because the utility model has adopted up-to-date motor-driven technology, also saved the transducer that motor commutation is used, therefore, the utility model is compared with existing technology, and has following advantage: 1. lightweight, volume is little, simple in structure, product is easily manufactured; 2. this electric efficiency is high, can accomplish that wide cut is efficient; 3. position-sensor-free driving, DSP control, and further improve the flexibility of motor reliability, control.Enlarged the range of application of permanent-magnet brushless DC electric machine.
Description of drawings
Fig. 1 is general assembly drawing of the present utility model;
Fig. 2 is along A-A direction cutaway view among Fig. 1;
Fig. 3 is exploded view of the present utility model;
Fig. 4 is the stereogram after the utility model removes part;
Fig. 5 is the stereogram of rotor assembly of the present utility model (31);
Fig. 6 is the stereogram of permanent magnet fastener (314);
Fig. 7 is the stereogram of permanent magnet (313).
Embodiment
Referring to figs. 1 to Fig. 3, Fig. 2 be Fig. 1 along A-A direction cutaway view, from Fig. 2, can recognize assembly structure of the present utility model.In Fig. 2, left terminal cap assemblies 2 is arranged on the left side outermost end of axle 1, and left terminal cap assemblies 2 comprises left bearing 21, left axle sleeve 22, reaches the left terminal lid 23 of being made by cast aluminium or cast iron.Left terminal lid 23 is arranged on the left end of axle 1, and the gap between the left end of axle 1 and the left terminal lid 23 is provided with left bearing 21, and left bearing 21 plays back shaft 1 left part herein.Left axle sleeve 22 is set on the axle 1, and abuts against the right of left bearing 21.Right terminal cap assemblies 4 comprises right bearing 41, right axle sleeve 42 and the right terminal lid 43 of being made by cast aluminium or cast iron.Right terminal lid 43 is arranged on the place of the close right part of axle 1, and the gap in right terminal lid 43 and axle 1 right part is provided with right bearing 41.Right bearing 41 also plays back shaft 1 right-hand member herein.Right axle sleeve 42 is set on the axle 1, and right axle sleeve 42 abuts against the left side of right terminal cap assemblies 4.Left terminal lid 23 and right terminal lid 43 all are symmetrically arranged with some left heat radiation through holes 231 that roughly are in strip along the center of circle separately and right heat radiation through hole 431(sees Fig. 3).Need to prove, the said left terminal cap assemblies 2 of the utility model and right terminal cap assemblies 4 are same structure.
The sub-assembly (3) that is comprised of the rotor assembly (31) of spindle (307)-toroidal shell (309)-two pair same specification is set in (see figure 2) on the axle 1 between left axle sleeve 22 and the right axle sleeve 42.Sub-assembly (3) is innovation of the present utility model, and the below stresses.
In the present embodiment, the quantity of sub-assembly 3 is one.Sub-assembly 3 comprises the spindle 307 that is comprised of injected plastics material, is embedded at the motor winding (not shown) of spindle 307 inside and the rotor assembly 31 of two pairs of same specifications.3,4 or 6 terminals 308 that the lead-out wire of the motor winding that spindle 307 is embedded is used, the concrete quantity of terminal 308 can be made corresponding change according to the design needs.
Motor winding and winding leading-out wire (not shown) are embedded in the design of spindle 307, have substituted the use of iron core in the traditional design, reduced the weight of total.
Spindle 307 is cylindric, is provided with the first circular groove 301 and the second circular groove 302 with 307 one-tenth integral body of spindle, two same specifications along spindle 307 two axial end faces.Spindle 307 vertically overall diameter and the first circular groove 301 or the second circular groove 302 in arbitrary madial wall diameter ratio be 1.732-2.2.The interior edge of two end faces of spindle 307 highly is lower than the outer height, and the purpose of design is to make things convenient for the motor winding to embed like this, and the convenient rotor assembly 31 of installing is convenient to machine operation in optimum state.
Rotor assembly 31 is provided with spline 315 along the axial center of circle, and the external tooth 11(on spline 315 and the axle 1 sees Fig. 3) be meshed, whole rotor assembly 31 is fixed on the axle 1.
In the utility model, have two pairs of identical rotor disk assemblies 31 and pass that axle 1 is built in respectively the first circular groove 301 and the second circular groove 302(sees Fig. 2 and Fig. 3).
Rotor assembly 31 comprises screw 311, rotor disk 312, some permanent magnets 313, and some permanent magnet fastener 314(see Fig. 5).Permanent magnet 313 roughly becomes the two ends at wide at the top and narrow at the bottom, upper hem width place that the first corner cut 3131 of same size and the fan-shaped (see figure 7) of the second cutting 3132 are arranged.It is up-narrow and down-wide that permanent magnet fastener 314 roughly becomes, and dual-side has the trapezoidal (see figure 6) of the first indent 3131 and the second indent 3132.
The first corner cut 3131 or the second cutting 3132 match with the profile of the first indent 3131 or the second indent 3132.
The spindle 307 cylindrical sides that injected plastics material forms are uniform-distribution with several (not shown)s of embedded nut, nut passes the some through holes 303 on the toroidal shell 309 that is set in spindle 307 outsides, screw in nut with screw in addition again, toroidal shell 309 and spindle 307 are fixed together.The waist typed through hole 3091 that holds some outlet terminals 308 is also established in toroidal shell 309 outsides.
The outside of toroidal shell 309 both sides end faces evenly is provided with some screw holes 306, left terminal lid 23 is provided with the through hole (not shown) corresponding with screw hole 306 positions with right terminal lid 43, screw 5 links together left terminal lid 23, toroidal shell 309, right terminal lid 43 respectively, makes whole utility model consist of an integral body.
The said permanent magnet of the utility model 313 is made by sintered neodymium iron boron material, and permanent magnet fastener 314 is processed by the 10#-20# rod iron.
The utlity model has larger power in order to make, as another embodiment, the quantity of sub-assembly 3 can also be for several, and these several sub-assemblies 3 are connected to each other together, thereby make the more powerful of motor generation.
Claims (10)
1. permanent magnet iron coreless sensorless disc style D. C. motor, comprise axle (1), and be located in successively from left to right the left terminal cap assemblies (2) on the axle (1), at least one group of sub-assembly (3), right terminal cap assemblies (4) that is formed by the rotor assembly (31) of the injection molded spindle of macromolecular material (307)-toroidal shell (309)-two pair same specification, it is characterized in that: by also being embedded with the motor winding in the spindle (307); Toroidal shell (309) is set in spindle (307) outside; Two end faces of spindle (307) are provided with the first circular groove (301) and second circular groove (302) of two same specifications that become an integral body with spindle (307) vertically; Evenly be provided with on described spindle (307) the outer circumference face for the nut that connects spindle (307) and toroidal shell (309); Two pairs of rotor assembly (31) pass respectively axle (1) and are built in the first circular groove (301) and the second circular groove (302); Be provided with some lead terminals (308) that the power supply machine winding leading-out wire uses on described spindle (307) lateral wall.
2. a kind of permanent magnet iron coreless sensorless disc style D. C. motor described in according to claim 1, it is characterized in that: described rotor assembly (31) comprises screw (311), rotor disk (312), some permanent magnets (313), and some permanent magnet fasteners (314); The first corner cut (3131) that described permanent magnet (313) roughly becomes is wide at the top and narrow at the bottom, there is same size at the two ends, top and the second cutting (3132) fan-shaped; Described permanent magnet fastener (314) roughly becomes up-narrow and down-wide, and dual-side has respectively the trapezoidal of the first indent (3141) and the second indent (3142); Permanent magnet (313) is fixedly installed on the same plane of rotor disk (312) with respect to rotor disk (312) center of circle symmetry; Each permanent magnet has identical interval between (313), and permanent magnet fastener (314) embeds and is arranged in these intervals; The outer wide place of permanent magnet fastener (314) is provided with through hole (3143), be provided with the some screw holes (316) relative with through hole (3143) on the rotor disk (312), each fastener (314) and rotor disk (312) removably connect by screw (311); First indent (3141) of every adjacent two fasteners (314) and the second indent (3142) be respectively near the first corner cut (3131) and second cutting (3132) of each permanent magnet (313), thereby along fastener (314) axial direction fixed permanent magnet (313).
3. according to a kind of permanent magnet iron coreless sensorless disc style D. C. motor described in the right 1, it is characterized in that: any one external diameter of described spindle (307) first circular grooves (301) or the second circular groove (302) and the ratio of its corresponding internal diameter are 1.732-2.2; Any one the interior edge of outside end face of described the first circular groove (301) and the second circular groove (302) highly is lower than the outer height.
4. according to a kind of permanent magnet iron coreless sensorless disc style D. C. motor described in the right 1, it is characterized in that: be provided with the keyway (315) that rotor disk (312) is fixed on axle (1) in the middle of described rotor disk (312) center of circle; Described axle (1) stage casing is provided with the external tooth (11) that is meshed with described keyway (315).
5. according to a kind of permanent magnet iron coreless sensorless disc style D. C. motor described in the right 1, it is characterized in that: described keyway (315) is spline.
6. according to a kind of permanent magnet iron coreless sensorless disc style D. C. motor described in the right 1, it is characterized in that: described left terminal cap assemblies (2) and right terminal cap assemblies (4) are same size; Described left terminal cap assemblies (2) comprises left bearing (21), left axle sleeve (22), reaches the left terminal lid (23) of being made by cast aluminium or cast iron; Described left bearing (21) is set in axle (1) and the inboard gap that forms of left terminal lid (23); Left axle sleeve (22) is near left bearing (21), be set on the axle (1) inwardly;
Described right terminal cap assemblies (4) comprises right bearing (41), right axle sleeve (42), reaches the right terminal lid (43) of being made by cast aluminium or cast iron; Described right bearing (41) is set in axle (1) and the inboard gap that forms of right terminal lid (43); Right axle sleeve (42) is near right bearing (41), be set on the axle (1) inwardly.
7. a kind of permanent magnet iron coreless sensorless disc style D. C. motor described in according to claim 5, it is characterized in that: described left terminal lid (23) can be symmetrically arranged with some left heat dissipation ventilation holes (231) that roughly are in strip; Right terminal lid (43) can be symmetrical arranged right heat dissipation ventilation hole (431) in the center of circle relatively.
According to claim 1 in a kind of permanent magnet iron coreless sensorless disc style D. C. motor, it is characterized in that: described toroidal shell (309) both sides end face evenly is provided with some screw holes (306) along the center of circle of toroidal shell (309).
9. each described a kind of permanent magnet iron coreless sensorless disc style D. C. motor according to claim 1-8, it is characterized in that: also comprise some screws (5), screw (5) is with left terminal lid (23) and right terminal is covered (43) respectively and two end faces of toroidal shell (309) are detachably connected by some screw holes (306), makes whole permanent magnet iron coreless sensorless disc style D. C. motor be linked to be as a whole.
10. a kind of permanent magnet iron coreless sensorless disc style D. C. motor described in according to claim 1 is characterized in that: also be provided with on described toroidal shell (309) lateral surface for the waist typed through hole that holds some lead terminals (308) (3091) and some through holes (303) of passing for the nut on the spindle (307).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220379628 CN202721588U (en) | 2012-08-02 | 2012-08-02 | Disc type permanent magnet brushless direct current motor with iron core-free and sensor-free properties |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220379628 CN202721588U (en) | 2012-08-02 | 2012-08-02 | Disc type permanent magnet brushless direct current motor with iron core-free and sensor-free properties |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202721588U true CN202721588U (en) | 2013-02-06 |
Family
ID=47623391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220379628 Expired - Fee Related CN202721588U (en) | 2012-08-02 | 2012-08-02 | Disc type permanent magnet brushless direct current motor with iron core-free and sensor-free properties |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202721588U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580436A (en) * | 2012-08-02 | 2014-02-12 | 深圳市瀚美特科技有限公司 | Permanent magnet coreless brushless sensorless disk type direct-current motor |
| CN109193984A (en) * | 2018-11-12 | 2019-01-11 | 仪坤动力科技（上海）有限公司 | Rotor disk component and disc type electric machine |
| WO2019041492A1 (en) * | 2017-08-31 | 2019-03-07 | 杭州中豪电动科技股份有限公司 | Steel magnet fixation structure of disc motor and fixing technique of steel magnets |
| CN111705380A (en) * | 2020-07-06 | 2020-09-25 | 卓郎（江苏）纺织机械有限公司 | Single motor drive spindle and textile machinery |
-
2012
- 2012-08-02 CN CN 201220379628 patent/CN202721588U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580436A (en) * | 2012-08-02 | 2014-02-12 | 深圳市瀚美特科技有限公司 | Permanent magnet coreless brushless sensorless disk type direct-current motor |
| WO2019041492A1 (en) * | 2017-08-31 | 2019-03-07 | 杭州中豪电动科技股份有限公司 | Steel magnet fixation structure of disc motor and fixing technique of steel magnets |
| CN109193984A (en) * | 2018-11-12 | 2019-01-11 | 仪坤动力科技（上海）有限公司 | Rotor disk component and disc type electric machine |
| CN111705380A (en) * | 2020-07-06 | 2020-09-25 | 卓郎（江苏）纺织机械有限公司 | Single motor drive spindle and textile machinery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102801264B (en) | Permanent magnet laminated motor | |
| CN104871403B (en) | Spoke type p-m rotor | |
| CN103580436A (en) | Permanent magnet coreless brushless sensorless disk type direct-current motor | |
| CN202721588U (en) | Disc type permanent magnet brushless direct current motor with iron core-free and sensor-free properties | |
| CN103944336A (en) | Hub drive motor with radial and tangential permanent magnet steel embedded in rotor | |
| CN102214958A (en) | Stator and rotor structure of permanent magnet motor | |
| CN203574521U (en) | Three-phase brushless direct current motor | |
| CN208820568U (en) | Rotor punching, rotor core, rotor, brshless DC motor and broken wall cooking machine | |
| CN100585988C (en) | Permanent magnetic stacking energy-saving electromotor | |
| CN201667564U (en) | Stator, rotor structures of a permanent magnetic electric motor | |
| CN203911608U (en) | Rotor punching sheet, rotor core and motor | |
| CN102946181A (en) | Novel motor | |
| CN202840876U (en) | Permanent magnet laminated motor | |
| CN203193469U (en) | Coreless disc-type direct-current brushless motor | |
| CN202059305U (en) | A position sensorless motor | |
| CN201994743U (en) | Rotor structure of permanent magnet motor | |
| CN201336619Y (en) | Energy-saving permanent magnet synchronous motor with high efficiency and high starting torque | |
| CN204103723U (en) | Electric automobile permanent magnet hybrid magnetic path motor | |
| CN105811712A (en) | Permanent magnet driving motor equipped with built-in radial and tangential combined type magnetic poles and used for electric automobile | |
| CN105958774A (en) | Surface-mounted radial and embedded tangential permanent magnet steel drive motor | |
| CN202798174U (en) | Novel permanent magnet motor of discrete electromagnet stator structure | |
| CN109787417A (en) | A kind of straight drive magnetic drive pump | |
| CN104852492A (en) | Pump efficient permanent magnet motor | |
| CN204089369U (en) | A kind of spindle nose disk generator | |
| CN209488373U (en) | A kind of straight drive magnetic drive pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20140802 |
|
| EXPY | Termination of patent right or utility model |