CN203339919U - Double power backup winding coreless direct-current brushless motor - Google Patents
Double power backup winding coreless direct-current brushless motor Download PDFInfo
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- CN203339919U CN203339919U CN2013203541185U CN201320354118U CN203339919U CN 203339919 U CN203339919 U CN 203339919U CN 2013203541185 U CN2013203541185 U CN 2013203541185U CN 201320354118 U CN201320354118 U CN 201320354118U CN 203339919 U CN203339919 U CN 203339919U
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Abstract
The utility model discloses a double power backup winding coreless direct-current brushless motor, comprising a motor shell, a commutator, and stator silicon steel, a compound winding coil, rotor magnetic steel, and a motor shaft which are sequentially arranged in the motor shell from outside to inside. The two ends of the motor shell are respectively fixedly provided with end caps. The two ends of the motor shaft are respectively fixed on the corresponding end caps through bearings. The commutator is located inside the motor shell and located between the stator silicon steel and one end cap. The compound winding coil comprises multiple layers of windings. At least one layer of the multiple layers of windings is a work winding, and other windings, except the work winding, are backup windings. According to the utility model, by virtue of changing the connecting number and mode of the multiple windings in the compound winding coil, the objectives of usage reliability improving, energy-saving starting, and operation power changing of the coreless motor are realized; and by virtue of adding corrugated gaskets at the end sides of the bearings, the objectives of resisting axial impact forces, preventing bearing damages, and prolonging the service life of the motor are achieved.
Description
Technical field
The utility model relates to a kind of hollow-cup motor, specifically relates to a kind of pair of power backup winding drag cup DC brushless motor.
Background technology
Hollow-cup motor belongs to direct current, permanent magnetism, servo small and special electric machine.The drag cup motor has outstanding energy conservation characteristic, sensitive control characteristic easily and stable operation characteristic, as high efficiency energy conversion device, has represented the developing direction of motor.Hollow-cup motor is due to its aircored structural advantage, make the unshakable in one's determination motor of rotor inertia far below equal-wattage, with advantages such as its high-performance, high efficiency, compact conformations, in fields such as medicine equipment, robot, small automatic equipment, obtain great propagation and employment.
For the application scenario of the high reliability request such as space flight, military affairs, medical treatment, when the motor winding is out of order, require to guarantee by reinstating the backup winding normal operation of system.Have higher requirement to volume, energy consumption, power, the mechanical property of motor in most fields.For energy-conservation needs, require to improve the efficiency of motor, improve power density.Advanced electric machine structure and the Winding Design of optimization are the keys that improves motor performance, increases work efficiency.Therefore, existing hollow-cup motor is further improved.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model proposes a kind of pair of power backup winding drag cup DC brushless motor, by changing number and the connected mode that in the retrial winding coil, a plurality of windings connect, reached the purpose that improves dependability, energy conservation starting and the change operate power of hollow-cup motor.By at the distolateral corrugated gasket of setting up of bearing, reached the opposing axial impact force, avoided bearing damage and improved the motor purpose in useful life.
The technical solution of the utility model is achieved in that
A kind of pair of power backup winding drag cup DC brushless motor, comprise motor housing, commutator and be located at successively from outside to inside stator silicon steel, compound winding coil, rotor magnetic steel and the machine shaft in described motor housing, described stator silicon steel and described compound winding coil and described motor housing are fixed as one, and described rotor magnetic steel is fixed on described machine shaft; The two ends of described motor housing are installed with respectively end cap, and the two ends of described machine shaft are fixed on corresponding end cap by bearing respectively, and described commutator is positioned at described motor housing, and at described stator silicon steel with wherein between an end cap; Described compound winding coil comprises some layers of winding, and having one deck in described some layers of winding at least is Working winding, and other windings beyond described Working winding are the backup winding.
As further improvement of the utility model, described compound winding coil comprises two-layer winding, and having one deck in described two-layer winding at least is Working winding, and other layers beyond described Working winding are the backup winding.
As further improvement of the utility model, described compound winding coil comprises two-layer winding, be respectively internal layer winding and outer winding, described internal layer winding and described outer winding are Working winding, described internal layer winding and described outer winding comprise respectively the threephase stator winding, the threephase stator winding of described internal layer winding and the threephase stator winding of described outer winding are all the triangular form connection, a kind of in wye connection and 3N diamond pattern connection, described internal layer winding is in parallel with being connected to of described outer winding, the series connection and go here and there and share in a kind of, form three public binding posts.
As further improvement of the utility model, described compound winding coil comprises two-layer winding, is respectively internal layer winding and outer winding, and in described internal layer winding and described outer winding, one deck is Working winding, and another layer is the backup winding; Described internal layer winding and described outer winding comprise respectively the threephase stator winding, the threephase stator winding of described internal layer winding and the threephase stator winding of described outer winding are all a kind of in triangular form connection, wye connection and 3N diamond pattern connection, and described internal layer winding and described outer winding form respectively three relatively independent binding posts.
As further improvement of the utility model, the threephase stator winding of described internal layer winding and the threephase stator winding of described outer winding are all 3N diamond pattern connection, and described internal layer winding and the series connection of described outer winding intersection form three relatively independent binding posts.
As further improvement of the utility model, at least one distolateral of at least one bearing is provided with for cushioning the corrugated gasket of opposing axial impact force.
As further improvement of the utility model, two described bearings both end sides dorsad is respectively equipped with a described corrugated gasket.
As further improvement of the utility model, corresponding each described corrugated gasket is provided with a buffering spacer, described corrugated gasket and described buffering spacer are arranged on described machine shaft, between described bearing and described end cap, described buffering spacer is between described bearing and described corrugated gasket, and described buffering spacer contacts with the outer shroud of described bearing.
As further improvement of the utility model, be respectively equipped with a copper bush between described rotor magnetic steel two ends and corresponding bearing, be provided with one between described copper bush and corresponding bearing and adjust pad.
As further improvement of the utility model, described bearing is deep groove ball bearing.
The beneficial effects of the utility model are: the utility model provides a kind of pair of power backup winding drag cup DC brushless motor, comprise motor housing and be located at successively from outside to inside stator silicon steel, compound winding coil, rotor magnetic steel and the machine shaft in motor housing, stator silicon steel and compound winding coil and motor housing are fixed as one, and rotor magnetic steel is fixed on machine shaft; The two ends of motor housing are installed with respectively end cap, and the two ends of machine shaft are fixed on corresponding end cap by bearing respectively, and commutator is positioned at motor housing, and at stator silicon steel with wherein between an end cap; Compound winding coil comprises some layers of winding, and having one deck in some layers of winding at least is relatively independent Working winding, and other windings beyond Working winding are the backup winding.The utility model can be realized the different connections to the compound winding coil of motor by control circuit, by parallel connection, series connection or string to a plurality of windings of the compound winding coil of motor shared the connection, thereby change motor performance, make a wherein winding job, remaining winding backups, when the Working winding fault, enable the backup winding, guarantee the motor normal operation.With a plurality of compound winding startings, while waiting motor fully steadily, close the part winding when electric motor starting, reach energy-conservation purpose.Different loads, the different operating requirement, reinstate the winding needed, and realizes different operating powers.By at the distolateral corrugated gasket that arranges of bearing one, the axial impact force that machine shaft is subject to is applied on corrugated gasket by copper bush and bearing, after reducing, the corrugated gasket buffering is delivered on motor housing, thereby impact power is discharged, play the cushioning effect to axial impact force, avoid bearing damage, extend motor useful life.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is the compound winding coil schematic cross-section of the utility model;
Fig. 3 is common hollow-cup motor winding coil triangular form connection;
Fig. 4 is common hollow-cup motor winding coil wye connection;
Fig. 5 is common hollow-cup motor winding coil diamond pattern connection;
Fig. 6 is the utility model internal layer winding and outer winding triangular form connection winding parallel;
Fig. 7 is the utility model internal layer winding and outer winding triangular form connection windings in series;
Fig. 8 is the utility model internal layer winding and one group of backup of one group of work of outer winding triangular form connection winding;
Fig. 9 is the utility model internal layer winding and outer winding wye connection winding parallel;
Figure 10 is the utility model internal layer winding and outer winding wye connection windings in series;
Figure 11 is the utility model internal layer winding and one group of backup of one group of work of outer winding wye connection winding;
Figure 12 is the utility model internal layer winding and outer winding 3N diamond pattern connection winding parallel;
Figure 13 is the utility model internal layer winding and outer winding 3N diamond pattern connection windings in series;
Figure 14 is the utility model internal layer winding and one group of backup of one group of work of outer winding 3N diamond pattern connection winding;
Figure 15 is one group of backup of one group of work after the utility model internal layer winding and outer winding 3N diamond pattern connection winding ectonexine windings in series.
By reference to the accompanying drawings, make the following instructions:
1---motor housing 2---commutator
3---stator silicon steel 4---compound winding coil
5---rotor magnetic steel 6---machine shaft
7---end cap 8---bearing
9---internal layer winding 10---outer winding
11---corrugated gasket 12---buffering spacer
13---copper bush 14---adjusts pad
A, A1, A2, B, B1, B2, C, C1, C2---binding post
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
As depicted in figs. 1 and 2, a kind of pair of power backup winding drag cup DC brushless motor, comprise motor housing 1, commutator 2 and be located at successively from outside to inside stator silicon steel 3, compound winding coil 4, rotor magnetic steel 5 and the machine shaft 6 in described motor housing, described stator silicon steel and described compound winding coil and described motor housing are fixed as one, and described rotor magnetic steel is fixed on described machine shaft; The two ends of described motor housing are installed with respectively end cap 7, and the two ends of described machine shaft are fixed on corresponding end cap by deep groove ball bearing 8 respectively, and described commutator is positioned at described motor housing, and at described stator silicon steel with wherein between an end cap; Described compound winding coil comprises some layers of winding, and having one deck in described some layers of winding at least is Working winding, and other windings beyond described Working winding are the backup winding.
Preferably, described compound winding coil comprises two-layer winding, and having one deck in described two-layer winding at least is Working winding, and other layers beyond described Working winding are the backup winding.
Preferably, described compound winding coil comprises two-layer winding, be respectively internal layer winding 9 and outer winding 10, described internal layer winding and described outer winding are Working winding, described internal layer winding and described outer winding comprise respectively the threephase stator winding, the threephase stator winding of described internal layer winding and the threephase stator winding of described outer winding are all a kind of in triangular form connection, wye connection and 3N diamond pattern connection, described internal layer winding and described outer winding be connected to parallel connection, connect and string and share in a kind of, form three public binding posts.
Preferably, described compound winding coil comprises two-layer winding, is respectively internal layer winding and outer winding, and in described internal layer winding and described outer winding, one deck is Working winding, and another layer is the backup winding; Described internal layer winding and described outer winding comprise respectively the threephase stator winding, the threephase stator winding of described internal layer winding and the threephase stator winding of described outer winding are all a kind of in triangular form connection, wye connection and 3N diamond pattern connection, and described internal layer winding and described outer winding form respectively three relatively independent binding posts.Like this, in internal layer winding and outer winding, one deck winding is as Working winding, and another layer of winding is as the backup winding; By using single layer winding, or two-layer winding parallel can be realized two power of motor.
Preferably, the threephase stator winding of described internal layer winding and the threephase stator winding of described outer winding are all 3N diamond pattern connection, and described internal layer winding and the series connection of described outer winding intersection form three relatively independent binding posts.
Preferably, at least one distolateral of at least one bearing is provided with for cushioning the corrugated gasket 11 of opposing axial impact force.Like this, can realize that the buffering of motor axial impact force discharges, play the effect that reduces the suffered axial impact force of bearing.
Preferably, two described bearings both end sides dorsad is respectively equipped with a described corrugated gasket.
Preferably, corresponding each described corrugated gasket is provided with a buffering spacer 12, described corrugated gasket and described buffering spacer are arranged on described machine shaft, between described bearing and described end cap, described buffering spacer is between described bearing and described corrugated gasket, and described buffering spacer contacts with the outer shroud of described bearing.
Preferably, between described rotor magnetic steel two ends and corresponding bearing, be respectively equipped with a copper bush 13, be provided with one between described copper bush and corresponding bearing and adjust pad 14, for the dynamic balancing adjustment.
Referring to Fig. 3, Fig. 4 and Fig. 5, common hollow-cup motor only has a winding coil, winding coil comprises the threephase stator winding, the threephase stator winding has triangular form connection, wye connection and rhombus connection, every kind of connection is formed with A, B and tri-binding posts of C, to wherein any two regular energisings of binding post, can realize the rotation of motor by control circuit.
In the utility model, winding coil is compound winding coil, and compound winding coil comprises some layers of winding, and having one deck in some layers of winding at least is Working winding, and other windings beyond Working winding are the backup winding.By parallel connection, series connection or string to a plurality of windings in compound winding coil shared the connection, reach the purpose that changes motor performance.One deck winding work in the multilayer winding, remaining winding backups, and when the Working winding fault, enables the backup winding, guarantees the motor normal operation; With a plurality of backup winding startings, while waiting motor fully steadily, close the part winding when electric motor starting, reach energy-conservation purpose; Different loads, the different operating requirement, reinstate the winding needed, and realizes different operating powers.
Referring to Fig. 6, Fig. 7, Fig. 9, Figure 10, Figure 12 and Figure 13, as a kind of preferred embodiment of the present utility model, compound winding coil comprises two-layer winding, be respectively internal layer winding 9 and outer winding 10, internal layer winding and outer winding are Working winding, internal layer winding and outer winding comprise respectively the threephase stator winding, the threephase stator winding of internal layer winding and the threephase stator winding of outer winding are all the triangular form connection, a kind of in wye connection and 3N diamond pattern connection, the internal layer winding is in parallel with being connected to of outer winding, the series connection and go here and there and share in a kind of, form three public binding posts.
Above-mentioned internal layer winding and outer winding be during all as Working winding, triangular form connection winding parallel referring to Fig. 6, triangular form connection windings in series referring to Fig. 7; The wye connection winding parallel referring to Fig. 9, wye connection windings in series referring to Figure 10; 3N diamond pattern connection winding parallel referring to Figure 12,3N diamond pattern connection windings in series referring to Figure 13.
Referring to Fig. 8, Figure 11, Figure 14 and Figure 15, as a kind of preferred embodiment of the present utility model, compound winding coil comprises two-layer winding, be respectively internal layer winding 9 and outer winding 10, internal layer winding and outer winding comprise respectively the threephase stator winding, the threephase stator winding of internal layer winding and the threephase stator winding of outer winding are all a kind of in triangular form connection, wye connection and 3N diamond pattern connection, and internal layer winding and outer winding form respectively three relatively independent binding posts.
Triangular form connection when above-mentioned internal layer winding and outer winding are selected a work backup winding is referring to Fig. 8, one deck winding Working winding, another layer of winding winding that backups.When Working winding fault or damage, enable the backup winding, guarantee the motor normal operation.During concrete enforcement, form respectively separate motor winding A1B1C1 and A2B2C2 by two-layer winding, wherein one deck winding is as Working winding, and another layer of winding is as the backup winding, when motor works, to the energising of A1B1C1 winding, the A2B2C2 winding backups.When winding breaks down or damage, disconnect tri-of A1B1C1, then give the energising of A2B2C2 winding, realize the normal operation of motor.This connection technique is simple, two-layer winding during respectively as Working winding the performance of direct current machine only slightly variant.
Wye connection when above-mentioned internal layer winding and outer winding are selected a work backup winding is referring to Figure 10, one deck winding Working winding, another layer of winding winding that backups.When Working winding fault or damage, enable the backup winding, guarantee the motor normal operation.During concrete enforcement, form respectively separate motor winding A1B1C1 and A2B2C2 by two-layer winding, wherein one deck winding is as Working winding, and another layer of winding is as the backup winding, when motor works, to the energising of A1B1C1 winding, the A2B2C2 winding backups.When winding breaks down or damage, disconnect tri-of A1B1C1, then give the energising of A2B2C2 winding, realize the normal operation of motor.This connection technique is simple, two-layer winding during respectively as Working winding the performance of direct current machine only slightly variant.
3N diamond pattern connection when above-mentioned internal layer winding and outer winding are selected a work backup winding is referring to Figure 14 and Figure 15, one deck winding Working winding, another layer of winding winding that backups.When Working winding fault or damage, enable the backup winding, guarantee the motor normal operation.During concrete enforcement, Figure 14 winding connection method forms respectively separate motor winding A1B1C1 and A2B2C2 by two-layer winding, and one of them winding is as Working winding, and another winding is as the backup winding.Figure 15 winding connection method forms separate motor winding A1B1C1 and A2B2C2 by the series connection of two-layer coil intersection, and one of them winding is as Working winding, and another winding is as the backup winding.When motor works, to the energising of A1B1C1 winding, the A2B2C2 winding backups.When winding breaks down or damage, disconnect tri-of A1B1C1, then give the energising of A2B2C2 winding, realize the normal operation of motor.Figure 14 winding connection method technique is simple, two-layer winding during respectively as Working winding the performance of direct current machine only slightly variant.The consistency of the two-layer winding of Figure 15 winding connection method is better, can guarantee the consistency at two-layer winding direct-current electric motor performance during respectively as Working winding.
The utility model can be realized the different connections to the compound winding coil of motor by control circuit, by parallel connection, series connection or string to a plurality of windings of the compound winding coil of motor shared the connection, thereby changes motor performance; Arrange by Working winding and the independent of backup winding, make a wherein winding job, remaining winding backups, and when the Working winding fault, enables the backup winding, guarantees the motor normal operation.With a plurality of compound winding startings, while waiting motor fully steadily, close the part winding when electric motor starting, reach energy-conservation purpose.Different loads, the different operating requirement, reinstate the winding needed, and realizes different operating powers.By at the distolateral corrugated gasket that arranges of bearing one, the axial impact force that machine shaft is subject to is applied on corrugated gasket by copper bush and bearing, after reducing, the corrugated gasket buffering is delivered on motor housing, thereby impact power is discharged, play the cushioning effect to axial impact force, avoid bearing damage, extend motor useful life.The utility model is by using single layer winding, or two-layer winding parallel can realize two power of motor, and operating efficiency can reach 80%-95%.
Above embodiment is with reference to accompanying drawing, and preferred embodiment of the present utility model is elaborated.Those skilled in the art is by above-described embodiment being carried out to modification or the change on various forms, but do not deviate from the situation of essence of the present utility model, within all dropping on protection range of the present utility model.
Claims (10)
1. a two power backup winding drag cup DC brushless motor, it is characterized in that: comprise motor housing (1), commutator (2) and be located at successively from outside to inside stator silicon steel (3), compound winding coil (4), rotor magnetic steel (5) and the machine shaft (6) in described motor housing, described stator silicon steel and described compound winding coil and described motor housing are fixed as one, and described rotor magnetic steel is fixed on described machine shaft; The two ends of described motor housing are installed with respectively end cap (7), and the two ends of described machine shaft are fixed on corresponding end cap by bearing (8) respectively, and described commutator is positioned at described motor housing, and at described stator silicon steel with wherein between an end cap; Described compound winding coil comprises some layers of winding, and having one deck in described some layers of winding at least is Working winding, and other windings beyond described Working winding are the backup winding.
2. according to claim 1 pair of power backup winding drag cup DC brushless motor, it is characterized in that: described compound winding coil comprises two-layer winding, having one deck in described two-layer winding at least is Working winding, and other layers beyond described Working winding are the backup winding.
3. according to claim 2 pair of power backup winding drag cup DC brushless motor, it is characterized in that: described compound winding coil comprises two-layer winding, be respectively internal layer winding (9) and outer winding (10), described internal layer winding and described outer winding are Working winding, described internal layer winding and described outer winding comprise respectively the threephase stator winding, the threephase stator winding of described internal layer winding and the threephase stator winding of described outer winding are all the triangular form connection, a kind of in wye connection and 3N diamond pattern connection, described internal layer winding is in parallel with being connected to of described outer winding, the series connection and go here and there and share in a kind of, form three public binding posts.
4. according to claim 2 pair of power backup winding drag cup DC brushless motor, it is characterized in that: described compound winding coil comprises two-layer winding, be respectively internal layer winding and outer winding, in described internal layer winding and described outer winding, one deck is Working winding, and another layer is the backup winding; Described internal layer winding and described outer winding comprise respectively the threephase stator winding, the threephase stator winding of described internal layer winding and the threephase stator winding of described outer winding are all a kind of in triangular form connection, wye connection and 3N diamond pattern connection, and described internal layer winding and described outer winding form respectively three relatively independent binding posts.
5. according to claim 4 pair of power backup winding drag cup DC brushless motor, it is characterized in that: the threephase stator winding of described internal layer winding and the threephase stator winding of described outer winding are all 3N diamond pattern connection, and described internal layer winding and the series connection of described outer winding intersection form three relatively independent binding posts.
6. according to described pair of power backup winding drag cup DC brushless motor of claim 1 to 5 any one, it is characterized in that: at least one distolateral of at least one bearing is provided with for cushioning the corrugated gasket (11) of opposing axial impact force.
7. according to claim 6 pair of power backup winding drag cup DC brushless motor, it is characterized in that: two described bearings both end sides dorsad is respectively equipped with a described corrugated gasket.
8. according to claim 7 pair of power backup winding drag cup DC brushless motor, it is characterized in that: corresponding each described corrugated gasket is provided with a buffering spacer (12), described corrugated gasket and described buffering spacer are arranged on described machine shaft, between described bearing and described end cap, described buffering spacer is between described bearing and described corrugated gasket, and described buffering spacer contacts with the outer shroud of described bearing.
9. according to claim 8 pair of power backup winding drag cup DC brushless motor, it is characterized in that: be respectively equipped with a copper bush (13) between described rotor magnetic steel two ends and corresponding bearing, be provided with one between described copper bush and corresponding bearing and adjust pad (14).
10. according to claim 1 pair of power backup winding drag cup DC brushless motor, it is characterized in that: described bearing is deep groove ball bearing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013203541185U CN203339919U (en) | 2013-06-19 | 2013-06-19 | Double power backup winding coreless direct-current brushless motor |
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| CN2013203541185U CN203339919U (en) | 2013-06-19 | 2013-06-19 | Double power backup winding coreless direct-current brushless motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762962A (en) * | 2014-12-19 | 2016-07-13 | 上海鸣志电器股份有限公司 | Slotless motor with even number-layer winding and winding manufacture method |
| CN108462352A (en) * | 2018-04-18 | 2018-08-28 | 嵊州市恒凯纺织机械有限公司 | A kind of Permanent Magnet and Electric needle |
| CN110138122A (en) * | 2019-06-27 | 2019-08-16 | 常州市运控电子有限公司 | A kind of acid-resistance etchant gas stepper motor |
| CN114094760A (en) * | 2021-11-29 | 2022-02-25 | 中国原子能科学研究院 | Double-voltage motor |
-
2013
- 2013-06-19 CN CN2013203541185U patent/CN203339919U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105762962A (en) * | 2014-12-19 | 2016-07-13 | 上海鸣志电器股份有限公司 | Slotless motor with even number-layer winding and winding manufacture method |
| CN108462352A (en) * | 2018-04-18 | 2018-08-28 | 嵊州市恒凯纺织机械有限公司 | A kind of Permanent Magnet and Electric needle |
| CN108462352B (en) * | 2018-04-18 | 2023-12-29 | 嵊州市恒凯纺织机械有限公司 | Permanent magnet electromagnetic needle |
| CN110138122A (en) * | 2019-06-27 | 2019-08-16 | 常州市运控电子有限公司 | A kind of acid-resistance etchant gas stepper motor |
| CN114094760A (en) * | 2021-11-29 | 2022-02-25 | 中国原子能科学研究院 | Double-voltage motor |
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