CN202334210U - Double-rotor monopole permanent magnet brushless direct current (DC) motor - Google Patents
Double-rotor monopole permanent magnet brushless direct current (DC) motor Download PDFInfo
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- CN202334210U CN202334210U CN2011204693909U CN201120469390U CN202334210U CN 202334210 U CN202334210 U CN 202334210U CN 2011204693909 U CN2011204693909 U CN 2011204693909U CN 201120469390 U CN201120469390 U CN 201120469390U CN 202334210 U CN202334210 U CN 202334210U
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Abstract
The utility model relates to a double-rotor monopole permanent magnet brushless direct current (DC) motor. The double-rotor monopole permanent magnet brushless direct current (DC) motor comprises stators and rotors, wherein the stators consist of a connecting plate in a disk type structure, and a left stator iron core ring and a right stator iron core ring which are symmetrically fixedly connected to both sides of the connecting plate in an assembly manner that the left stator iron core ring and the right stator iron core ring are coaxial with the connecting plate; the connecting plate is fixedly connected with a stator shaft through a central shaft hole; a coil winding is wound in a manner that inner windings and the outer windings of adjacent slots are connected in series head to tail in inner winding slots and outer winding slots of the left stator iron core ring and the right stator iron core ring; the rotors comprise a left end cover and a right end cover which pass through the central shaft hole and are combined with the stator shaft in a movable fit manner, and an inner rotor and an outer rotor which are fixedly connected with the left end cover and the right end cover in a fixed connection manner; the inner rotor and the outer rotor comprise an inner rotor shell, an outer rotor shell, an outer permanent-magnet magnetic ring which is combined with the inner wall of the outer rotor shell in a fixed connection manner and an inner permanent-magnet magnetic ring which is combined with the outer circle of the inner rotor shell in a fixed connection manner; the inner permanent-magnet magnetic ring and the outer permanent-magnet magnetic ring have opposite polarities; and the inner rotor consists of a left inner rotor and a right inner rotor which are symmetrically arranged on both sides of the connecting plate in the disk type structure and are in clearance fit with the connecting plate.
Description
Technical field
The utility model relates to a kind of magneto, relates to a kind of double rotor single pole permanent magnet brushless direct current machine specifically.
Background technology
Current is when the N pole field turns to the S pole field in the direct current machine armature of prior art, and the current sense of current need commutate and just can make conductor continue stressed rotation, and this moment must be by reversing arrangement, and brush motor needs commutating brush.Brshless DC motor needs the auxiliary exchange system position transducer of a cover electronics could continue stressed rotation; And the effective area that brushless electric machine magnetic field and coil are worked at one time is limited; Cause magnet machine winding coil utilance not high; Only be in the effect that current under the relative magnetic pole just can receive magnetic field force; Frequently switching-over of current in operation process therefore to all being very big problem in controller technology requirement and the cost control, has caused stable unreliable and cost increase.
Summary of the invention
The purpose of the utility model provides a kind of birotor one pole non-brush permanent-magnet DC motor to existing weak point in the above-mentioned prior art just.The utility model is compared prior art machine operation air-gap field and coil windings utilance and raising to a great extent; All windings all are in best effectively operating state at one time in the motor; Make rotor obtain bigger unidirectional synthetic torque; And can reduce thereby the controller technology requirement is reduced the controller cost, make whole system simple, and reliable in stability.
The purpose of the utility model can realize through following technique measures:
The double rotor single pole permanent magnet brushless direct current machine of the utility model comprises stator and rotor, wherein:
The left and right stator core ring that a, said stator are fixed in the connecting plate both sides by the connecting plate of disk structure, with the mounting means symmetry with the connecting plate coaxial line is formed, and said connecting plate is through central shaft hole and stator axis Joint; The mode winding around winding of in the inside and outside slot for winding of left and right stator core ring, connecting from beginning to end with the inside and outside winding of adjacent slot;
B. said rotor comprises the left and right sides end cap that combines with stator axis with mode movingly through central shaft hole, with the inner and outer rotors of affixed mode and left and right sides end cap Joint; Said inner and outer rotors comprises inside and outside rotor case, and the outer permanent magnet magnetic ring that combines with the outer rotor case inwall with affixed mode, the interior permanent magnet magnetic ring that combines with internal rotor housing periphery with affixed mode; Said inside and outside permanent magnet magnetic ring polarity is opposite; Said internal rotor is formed by the connecting plate both sides that are symmetricly set on disk structure and with the left and right internal rotor that connecting plate is matched in clearance.
The connecting plate of disk structure described in the utility model is fixed together through connecting bolt with the left and right iron core ring that is symmetricly set on the connecting plate both sides.
The beneficial effect of the utility model is following:
The utility model motor need not just can continue stressed rotation by current in the commutating device armature; Therefore simple, the easy to maintenance letter of the utility model motor manufacturing not only originally has reduced a lot of fault points on one's body from motor and has made in motor performance raising but also the controller technology requirement and all will reduce to some extent than original common electric machine; And whole system is simple, reliable and stable.
Description of drawings
Fig. 1 is the utility model motor overall structure sketch map.
Fig. 2 is the utility model stator core construction for motor sketch map.
Fig. 3 is the structural representation of the connecting plate of disk structure.
Fig. 4 is the current field direction sketch map of the utility model motor.
Fig. 5 is the magnetic Circuit Design scheme sketch map of the utility model.
Among the figure: 1-stator axis, 2-bearing, 3-left end cap, 4-connecting bolt; The outer permanent magnet magnetic ring in 5-left side, 6-left side stator core ring, permanent magnet magnetic ring in the 7-left side, the connecting plate of 8-disk structure; Permanent magnet magnetic ring outside the 9-right side, the outer winding of 10-, the right stator core ring of 11-, 12-outer rotor case; Winding in the 13-, permanent magnet magnetic ring in the 14-right side, 15-right end cap.
Embodiment
To combine embodiment (accompanying drawing) to further describe below the utility model:
Like Fig. 1,2, shown in 3; The double rotor single pole permanent magnet brushless direct current machine of the utility model comprises stator and rotor; Wherein: the left and right stator core ring 6,11 that said stator is fixed in the connecting plate both sides by the connecting plate 8 of disk structure, with the mounting means symmetry with connecting plate 8 coaxial lines is formed, and said connecting plate 8 is through central shaft hole and stator axis 1 Joint; The mode winding around winding of in the inside and outside slot for winding of left and right stator core ring, connecting with the interior winding 13 of adjacent slot, outer winding 10 head and the tail; Said rotor comprises the left and right end cap 3,15 that combines with stator axis 1 with mode movingly through central shaft hole, bearing 2, with the inside and outside rotor of affixed mode and left and right end cap Joint; Said inside and outside rotor comprises internal rotor housing, outer rotor case 12, and the outer permanent magnet magnetic ring that combines with the outer rotor case inwall with affixed mode, the interior permanent magnet magnetic ring that combines with internal rotor housing periphery with affixed mode; Said inside and outside permanent magnet magnetic ring polarity is opposite; Said internal rotor is formed by the connecting plate both sides that are symmetricly set on disk structure and with the left and right internal rotor that connecting plate is matched in clearance; Said outer permanent magnet magnetic ring is made up of permanent magnet magnetic ring 9 outside permanent magnet magnetic ring outside the left side 5, the right side; Permanent magnet magnetic ring is made up of permanent magnet magnetic ring 14 in permanent magnet magnetic ring in the left side 7, the right side in said.
The connecting plate 8 of disk structure described in the utility model and the left and right stator core ring that is symmetricly set on the connecting plate both sides 6,11 are fixed together through connecting bolt 4.
More specifically say: the motor stator of the utility model adopts 18 grooves, outer 9 grooves of 9 grooves in dividing, and winding is together in series with outer winding from beginning to end in the adjacent slot, constitutes inside and outside winding, and whole winding construction is simple.Rotor adopts permanent magnet magnetic ring; Permanent magnet magnetic ring sticks on respectively on the inner and outer rotors housing with outer permanent magnet magnetic ring in being divided into; Adopt whole magnet ring for volume small machine rotor permanent magnet magnet ring; If it is big to do the heavy-duty motor volume; Permanent magnet magnetic ring just can adopt partition type to stick at last to constitute permanent magnet circle ring together so that easy to process, because of this electric machine structure is an external rotor, is applicable in the power-driven system of external rotor Drive Structure and uses so the utility model motor can be used as automotive hub motor etc.Solve in limited wheel hub space the motor little problem of exerting oneself, improved the stability of a whole set of drive system simultaneously.
Permanent magnet magnetic ring magnetic line of force direction entad is in Fig. 4 China and foreign countries, and the outer winding 10 current senses of current should be counterclockwise by force direction for using symbol " ⊕ " expression just in the drawings according to all currents of left hand rule.
Interior permanent magnet magnetic ring magnetizing direction is opposite with outer permanent magnet magnetic ring magnetic line of force direction, and the internal layer winding current sense of current with symbol " ⊙ " expression, in like manner can all currents be should be counterclockwise by force direction for negative in scheming in the drawings.
According to law of magnetic induction; The suffered magnetic force of current is: F=BILsin θ; In the time of in Fig. 4, can finding out the utility model machine operation in the ectonexine armature all currents in synchronization all work and perpendicular cuts magnetic line of force angle theta=90 ° all the time; And other common electric machines all winding synchronizations of armature when machine operation have only the work of part current and the part current perpendicular cuts magnetic line of force is only arranged; The utility model motor has two working gas gaps to make motor that two machine operation arranged in a space simultaneously in addition, thereby has increased motor torque and power greatly.
At present in the common DC motor armature current when the N pole field turns to the S pole field; The current sense of current need commutate and just can make conductor continue stressed rotation; This moment must be by reversing arrangement; Brush motor needs commutating brush, and brshless DC motor needs the auxiliary exchange system position transducer of a cover electronics could continue stressed rotation.And the utility model motor need not just can continue stressed rotation by current in the commutating device armature; Therefore simple, the easy to maintenance letter of the utility model motor manufacturing not only originally has reduced a lot of fault points on one's body from motor and has made in motor performance raising but also the controller technology requirement and all will reduce to some extent than original common electric machine.Whole system is simple, reliable and stable.
As shown in Figure 5; In the stator core of the utility model winding and outer winding iron core inside and outside slot for winding in the mode of connecting from beginning to end with the inside and outside winding of adjacent slot twine, the relative magnetic pole formation closed magnetic loop of magnet ring self is got back in the magnetic field that outer permanent magnet magnetic ring produces respectively through radial air gap, outer winding, axial air-gap, rotor left end cap and outer rotor case; The relative magnetic pole formation closed magnetic loop of magnet ring self is got back in the magnetic field that interior permanent magnet magnetic ring produces respectively through radial air gap, interior winding, axial air-gap, rotor left end cap, internal rotor housing; The ectonexine winding works in simultaneously respectively and forms a synthetic torque in inside and outside two working gas gap magnetic fields when conductor is switched on.
Claims (2)
1. double rotor single pole permanent magnet brushless direct current machine, it comprises stator and rotor, it is characterized in that:
The left and right stator core ring that a, said stator are fixed in the connecting plate both sides by the connecting plate of disk structure, with the mounting means symmetry with the connecting plate coaxial line is formed, and said connecting plate is through central shaft hole and stator axis Joint; The mode winding around winding of in the inside and outside slot for winding of left and right stator core ring, connecting from beginning to end with the inside and outside winding of adjacent slot;
B. said rotor comprises the left and right sides end cap that combines with stator axis with mode movingly through central shaft hole, with the inner and outer rotors of affixed mode and left and right sides end cap Joint; Said inner and outer rotors comprises inside and outside rotor case, and the outer permanent magnet magnetic ring that combines with the outer rotor case inwall with affixed mode, the interior permanent magnet magnetic ring that combines with internal rotor housing periphery with affixed mode; Said inside and outside permanent magnet magnetic ring polarity is opposite; Said internal rotor is formed by the connecting plate both sides that are symmetricly set on disk structure and with the left and right internal rotor that connecting plate is matched in clearance.
2. double rotor single pole permanent magnet brushless direct current machine according to claim 1 is characterized in that: the connecting plate of said disk structure is fixed together through connecting bolt with the left and right iron core ring that is symmetricly set on the connecting plate both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204693909U CN202334210U (en) | 2011-11-23 | 2011-11-23 | Double-rotor monopole permanent magnet brushless direct current (DC) motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204693909U CN202334210U (en) | 2011-11-23 | 2011-11-23 | Double-rotor monopole permanent magnet brushless direct current (DC) motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202334210U true CN202334210U (en) | 2012-07-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204693909U Expired - Fee Related CN202334210U (en) | 2011-11-23 | 2011-11-23 | Double-rotor monopole permanent magnet brushless direct current (DC) motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202334210U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051137A (en) * | 2013-01-09 | 2013-04-17 | 王九龙 | Permanent magnet motor |
| CN103647378A (en) * | 2013-11-21 | 2014-03-19 | 北京信息科技大学 | A birotor wheel hub electric automobile motor |
| CN112228279A (en) * | 2019-06-30 | 2021-01-15 | 北京金风科创风电设备有限公司 | Generator and wind generating set |
| CN112436701A (en) * | 2020-11-16 | 2021-03-02 | 山东大学 | Birotor magnetic monopole motor |
-
2011
- 2011-11-23 CN CN2011204693909U patent/CN202334210U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051137A (en) * | 2013-01-09 | 2013-04-17 | 王九龙 | Permanent magnet motor |
| CN103647378A (en) * | 2013-11-21 | 2014-03-19 | 北京信息科技大学 | A birotor wheel hub electric automobile motor |
| CN112228279A (en) * | 2019-06-30 | 2021-01-15 | 北京金风科创风电设备有限公司 | Generator and wind generating set |
| CN112228279B (en) * | 2019-06-30 | 2023-03-03 | 北京金风科创风电设备有限公司 | Generator and wind generating set |
| CN112436701A (en) * | 2020-11-16 | 2021-03-02 | 山东大学 | Birotor magnetic monopole motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131123 |