CN205070637U - Electric motor rotor reaches motor including this electric motor rotor - Google Patents
Electric motor rotor reaches motor including this electric motor rotor Download PDFInfo
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- CN205070637U CN205070637U CN201520897564.XU CN201520897564U CN205070637U CN 205070637 U CN205070637 U CN 205070637U CN 201520897564 U CN201520897564 U CN 201520897564U CN 205070637 U CN205070637 U CN 205070637U
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- rotor
- baffle plate
- convex tendon
- main shaft
- magnetic baffle
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Abstract
The application discloses electric motor rotor reaches motor including this electric motor rotor, electric motor rotor include that main shaft, fixed cover are in the at least two rings of main shaft outer peripheral face shape magnet, set up arbitrary adjacent two well interval magnetism baffle between the ring magnets and with each ring magnets and separate the sheath of magnetism baffle cover in inside, arbitrary adjacent two ring magnets's relative terminal surface, one of them terminal surface with the contact surface of well interval magnetism baffle is equipped with the first protruding muscle and the first recess of looks adaptation, another terminal surface with the contact surface of well interval magnetism baffle is equipped with the protruding muscle of second and the second recess of looks adaptation. According to the configuration, the utility model provides an electric motor rotor, it can effectively simplify rotor structure, has better oblique utmost point effect moreover.
Description
Technical field
The utility model relates to technical field of motors, particularly relates to a kind of rotor and comprises the motor of this rotor.
Background technology
The oblique pole of rotor segment is a kind of method that can effectively weaken slot ripples, improve motor cogging torque and torque pulsation.
Conveniently manufacture, the method that the effect of oblique pole adopts rotor magnetic pole segmentation to misplace usually.In prior art, the patent No. is mention the structure adopting the method for the oblique pole of segmentation to realize reducing cogging torque of permanent magnet motor in the patent documentation of CN201410370564.4, but and the unexposed measure that can realize oblique pole.
Another part patent No. is in the patent documentation of CN2012101448034.6, also mention the oblique pole permanent magnet synchronous motor rotor of a kind of segmentation, rotor is built-in type permanent-magnet rotor, and each segmented rotor is serially connected by bolt, easily occur the problem of leakage field between each section of rotor, oblique pole effect is poor.And structure is comparatively complicated, pursue separately performance and make structure too complicated and inadvisable in a certain respect, and too complicated structure itself can cause the uncontrollability of motor performance.
Therefore, how can on the basis simplifying rotor structure, realizing preferably tiltedly pole effect, be those skilled in the art's important technological problems to be solved.
Utility model content
The utility model provides a kind of rotor, and it effectively can simplify rotor structure, and has oblique pole effect preferably.The utility model additionally provides a kind of motor comprising above-mentioned rotor.
A kind of rotor that the utility model provides, comprise main shaft, at least two toroidal magnets of fixed cover in described main shaft periphery face, be arranged on arbitrary neighborhood two described toroidal magnets between in interval magnetic baffle plate and by toroidal magnet described in each with every the sheath of magnetic baffle-plate-sleeve in inside; The opposing end surface of two described toroidal magnets of arbitrary neighborhood, the contact-making surface of one of them end face and described middle interval magnetic baffle plate is provided with the first suitable convex tendon and the first groove, and the contact-making surface of another end face and described middle interval magnetic baffle plate is provided with the second suitable convex tendon and the second groove; The angle of the line in described first convex tendon and the center of circle and the line in described second convex tendon and the center of circle is oblique polar angle degree θ,
; Wherein, Z is number of stator slots; P is number of pole-pairs; N is toroidal magnet axial segmentation number; LCM (Z, 2p) represents the least common multiple of number of stator slots Z and motor pole number 2p.
Preferably, described first convex tendon and described second convex tendon are strip convex tendon, and bearing of trend is consistent with the radial direction of described main shaft.
Preferably, described first convex tendon and described second convex tendon are arranged at the described two sides every magnetic baffle plate respectively.
Preferably, the outside being positioned at the described toroidal magnet at two ends is all fixed with lateral septal magnetic baffle plate.
Preferably, described middle interval magnetic baffle plate and described lateral septal magnetic baffle plate are all by the outer peripheral face of interference fit fixed cover at described main shaft, described toroidal magnet is enclosed within the outer peripheral face of described main shaft by matched in clearance, and is filled with binding material between the outer peripheral face of described toroidal magnet and described main shaft.
Preferably, described sheath and described toroidal magnet, described middle interval magnetic baffle plate are interference fit.
Preferably, described toroidal magnet is rare earth annular magnetic steel.
Preferably, the quantity of described toroidal magnet is two.
The utility model additionally provides a kind of motor, comprises rotor, and described rotor is the rotor as above described in any one.
A kind of rotor that the utility model provides, comprise main shaft, at least two toroidal magnets of fixed cover in described main shaft periphery face, be arranged on arbitrary neighborhood two described toroidal magnets between in interval magnetic baffle plate and by toroidal magnet described in each with every the sheath of magnetic baffle-plate-sleeve in inside; The opposing end surface of two described toroidal magnets of arbitrary neighborhood, the contact-making surface of one of them end face and described middle interval magnetic baffle plate is provided with the first suitable convex tendon and the first groove, and the contact-making surface of another end face and described middle interval magnetic baffle plate is provided with the second suitable convex tendon and the second groove; The angle of the line in described first convex tendon and the center of circle and the line in described second convex tendon and the center of circle is oblique polar angle degree θ,
; Wherein, Z is number of stator slots; P is number of pole-pairs; N is toroidal magnet axial segmentation number; LCM (Z, 2p) represents the least common multiple of number of stator slots Z and motor pole number 2p.Setting like this, the rotor that the utility model provides, by toroidal magnet and middle interval magnetic baffle plate fixed cover on main shaft, middle interval magnetic baffle plate is by the fit structure of convex tendon and groove, be kept at an angle with the toroidal magnet of its both sides respectively, make the oblique polar angle degree θ between the toroidal magnet of its both sides keep fixing, structure is simple, facilitates two, location toroidal magnet to keep accurate tiltedly polar angle degree θ during installation.And do not need perforation in the middle of toroidal magnet and middle interval magnetic baffle plate, ensure that the problem that there will not be leakage field between two adjacent toroidal magnets.
The utility model additionally provides a kind of motor comprising above-mentioned rotor, so arranges, the motor that the utility model provides, and structure is simple and have oblique pole effect preferably.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is rotor scheme of installation in the utility model embodiment;
Fig. 2 is toroidal magnet generalized section in the utility model embodiment;
Fig. 3 is toroidal magnet end view in the utility model embodiment;
Fig. 4 is the schematic side view of middle interval magnetic baffle plate in the utility model embodiment;
In Fig. 1-Fig. 4:
Main shaft-11, toroidal magnet-12, magnetic baffle plate-13, middle interval, sheath-14, the first convex tendon-15, the first groove-16, the second convex tendon-17, lateral septal magnetic baffle plate-18.
Embodiment
This embodiment provides a kind of rotor, and it effectively can simplify rotor structure, and has oblique pole effect preferably.This embodiment additionally provides a kind of motor comprising above-mentioned rotor.
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1-Fig. 4, the rotor that this embodiment provides, comprise main shaft 11, at least two toroidal magnets 12, middle interval magnetic baffle plate 13 and sheath 14.Wherein, each toroidal magnet 12 and the equal fixed cover of middle interval magnetic baffle plate 13, on the outer peripheral face of main shaft 11, are equipped with a middle interval magnetic baffle plate 13 between two toroidal magnets 12 of arbitrary neighborhood, there is the problem of leakage field between adjacent two toroidal magnets 12.Sheath 14 is enclosed within the periphery of toroidal magnet 12 and middle interval magnetic baffle plate 13, to play a protective role, enables rotor safe operation.
In this embodiment, the opposing end surface of two toroidal magnets 12 of arbitrary neighborhood, the two two adjacent end face i.e., the contact-making surface of one of them end face and middle interval magnetic baffle plate 13 is provided with the first suitable convex tendon 15 and the first groove 16, and the contact-making surface of another end face and middle interval magnetic baffle plate 13 is provided with the second suitable convex tendon 17 and the second groove.Such as, the first convex tendon 15 and the second convex tendon 17 can be separately positioned on two sides of middle interval magnetic baffle plate 13, and the first groove 16 is arranged on the end face of a toroidal magnet 12, and the second groove is arranged on the end face of another toroidal magnet 12.
In addition, in this embodiment, first convex tendon 15 and the second convex tendon 17 need offset angular θ, the angle θ staggered is equal with the oblique polar angle degree of adjacent two toroidal magnets 12, the i.e. vertical line of the first convex tendon 15 and main shaft 11 center line and the vertical line of the second convex tendon 17 and main shaft 11 center line, projection angle in the plane perpendicular to main shaft 11 center line is θ
; Wherein, Z is number of stator slots; P is number of pole-pairs; N is toroidal magnet 12 axial segmentation number; LCM (Z, 2p) represents the least common multiple of number of stator slots Z and motor pole number 2p.
Setting like this, the rotor that this embodiment provides, by toroidal magnet 12 and middle interval magnetic baffle plate 13 fixed cover on main shaft 11, middle interval magnetic baffle plate 13 is by the fit structure of convex tendon and groove, be kept at an angle with the toroidal magnet 12 of its both sides respectively, make the oblique polar angle degree θ between the toroidal magnet 12 of its both sides keep fixing, structure is simple, facilitates two, location toroidal magnet 12 to keep accurate tiltedly polar angle degree θ during installation.And do not need perforation in the middle of toroidal magnet 12 and middle interval magnetic baffle plate 13, ensure that the problem that there will not be leakage field between two adjacent toroidal magnets 12, there is preferably tiltedly pole effect.
It should be noted that, segmentation oblique pole motor shaft is often less to the selection of segments, i.e. the negligible amounts of toroidal magnet 12, when producing in enormous quantities, considering the convenience of processing, also not advising that the axial segmentation number of rotor is too much.Meanwhile, high speed rotor of motor structural strength aspect also limit magnet steel axial segmentation number.The axial segmentation number of motor can be selected according to the actual conditions of rotor core, need not too pursue high score hop count: still can produce each harmonic, cogging torque and torque pulsation in the rational situation of little, the oblique polar angle of axial segmentation number and slacken effect preferably.In production in enormous quantities, greatly can reduce the processing cost of magnet steel.Therefore preferably divide two sections by toroidal magnet 12 in this embodiment, but be not limited to two sections.
Content below, for the toroidal magnet 12 of two sections, is described in detail to the utility model rotor.In present embodiment, rotor comprises a main shaft 11, sheath 14, middle interval magnetic baffle plate, 13, two lateral septal magnetic baffle plates 18, two sections of toroidal magnets 12, and wherein, toroidal magnet 12 preferably adopts rare earth annular magnetic steel.
This rotor structure protects two toroidal magnets 12 and transmitting torque by sheath 14, and wherein toroidal magnet 12 part adopts the oblique electrode structure of segmentation, and be about to overall rare earth annular magnetic steel and be divided into two sections, centre adds middle interval magnetic baffle plate 13.Sheath 14 material can be nickel-base alloy, titanium alloy, carbon fiber etc., during High Rotation Speed, due to the protective effect of sheath 14, makes p-m rotor can safe operation.
Rotor adopts a main shaft 11, and main shaft 11 adopts permeability magnetic material; Middle interval magnetic baffle plate 13 and the lateral septal magnetic baffle plate 18 be arranged on outside two sections of toroidal magnets 12 all adopt non-magnet material, can prevent the problem of leakage field, and be interference fit between three and main shaft 11.
Middle interval magnetic baffle plate 13 adopts non-magnet material, and its both sides respectively design one, and to cross the center of circle and first convex tendon 15 of the certain angle θ that is staggered and the second convex tendon 17, first convex tendon 15 and the second convex tendon 17 be strip structure, and bearing of trend is consistent with main shaft 11 radial direction.First groove 16 is consistent with the shape of the first convex tendon 15 and the second convex tendon 17 with the second groove, and two sections of toroidal magnets 12 preferably adopt NdFeB material, and magnetizing direction is all vertical with the second groove direction with the first groove 16.The toroidal magnet 12 of middle interval magnetic baffle plate 13 and both sides is suited by concaveconvex structure and realizes oblique pole certain angle.Oblique polar angle degree, namely between two toroidal magnet 12 pole center lines, angle is that θ can be obtained by following formula primary Calculation:
Wherein, Z is number of stator slots; P is number of pole-pairs; N is magnet steel axial segmentation number, the design N=2; LCM (Z, 2p) represents the least common multiple of number of stator slots Z and motor pole number 2p.
Two toroidal magnets 12 can be matched in clearance with main shaft 11, and bonded by glue and main shaft 11, middle interval magnetic baffle plate 13 can be interference fit with main shaft 11.Sheath 14 adopts the materials such as nickel-base alloy, titanium alloy or carbon fiber, and main shaft 11, middle interval magnetic baffle plate 13, avris can be interference fit every magnetic baffle plate, toroidal magnet 12, and in the axial direction, sheath 14 left side and main shaft 11 are fitted.
Setting like this, the rotor that this embodiment provides has the cogging torque that can reduce motor, the advantage of harmonic content.Secondly, the middle interval magnetic baffle plate 13 of band convex tendon not only effectively can avoid the axial leakage field of magnet steel, and more conveniently can realize the oblique pole of magnet steel, solves the problem of the oblique extremely difficulty of magneto.Meanwhile, the annular magnetic steel that the oblique electrode structure of this segmentation can solve current large-size cannot be processed this bottleneck problem and reduce the cost of magnet steel.
This embodiment additionally provides a kind of motor comprising above-mentioned rotor, so arranges, the motor that this embodiment provides, and its rotor structure is simple, be easy to process, cost is lower and effectively can avoid the problem of leakage field.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a rotor, it is characterized in that, comprise main shaft, at least two toroidal magnets of fixed cover in described main shaft periphery face, be arranged on arbitrary neighborhood two described toroidal magnets between in interval magnetic baffle plate and by toroidal magnet described in each with every the sheath of magnetic baffle-plate-sleeve in inside; The opposing end surface of two described toroidal magnets of arbitrary neighborhood, the contact-making surface of one of them end face and described middle interval magnetic baffle plate is provided with the first suitable convex tendon and the first groove, and the contact-making surface of another end face and described middle interval magnetic baffle plate is provided with the second suitable convex tendon and the second groove; The angle of the line in described first convex tendon and the center of circle and the line in described second convex tendon and the center of circle is oblique polar angle degree θ,
; Wherein, Z is number of stator slots; P is number of pole-pairs; N is toroidal magnet axial segmentation number; LCM (Z, 2p) represents the least common multiple of number of stator slots Z and motor pole number 2p.
2. rotor as claimed in claim 1, it is characterized in that, described first convex tendon and described second convex tendon are strip convex tendon, and bearing of trend is consistent with the radial direction of described main shaft.
3. rotor as claimed in claim 2, is characterized in that, described first convex tendon and described second convex tendon are arranged at the described two sides every magnetic baffle plate respectively.
4. the rotor as described in any one of claim 1-3, is characterized in that, the outside being positioned at the described toroidal magnet at two ends is all fixed with lateral septal magnetic baffle plate.
5. rotor as claimed in claim 4, it is characterized in that, described middle interval magnetic baffle plate and described lateral septal magnetic baffle plate are all by the outer peripheral face of interference fit fixed cover at described main shaft, described toroidal magnet is enclosed within the outer peripheral face of described main shaft by matched in clearance, and is filled with binding material between the outer peripheral face of described toroidal magnet and described main shaft.
6. rotor as claimed in claim 1, it is characterized in that, described sheath and described toroidal magnet, described middle interval magnetic baffle plate are interference fit.
7. rotor as claimed in claim 1, it is characterized in that, described toroidal magnet is rare earth annular magnetic steel.
8. rotor as claimed in claim 1, it is characterized in that, the quantity of described toroidal magnet is two.
9. a motor, comprises rotor, it is characterized in that, described rotor is the rotor as described in any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520897564.XU CN205070637U (en) | 2015-11-10 | 2015-11-10 | Electric motor rotor reaches motor including this electric motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520897564.XU CN205070637U (en) | 2015-11-10 | 2015-11-10 | Electric motor rotor reaches motor including this electric motor rotor |
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| Publication Number | Publication Date |
|---|---|
| CN205070637U true CN205070637U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520897564.XU Active CN205070637U (en) | 2015-11-10 | 2015-11-10 | Electric motor rotor reaches motor including this electric motor rotor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207382A (en) * | 2015-11-10 | 2015-12-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor and motor with same |
| CN107612170A (en) * | 2017-10-23 | 2018-01-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnet ring, rotor and motor |
| CN107968521A (en) * | 2016-10-20 | 2018-04-27 | 北京精密机电控制设备研究所 | A kind of rotor and the integrated servomotor of leading screw |
-
2015
- 2015-11-10 CN CN201520897564.XU patent/CN205070637U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207382A (en) * | 2015-11-10 | 2015-12-30 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor rotor and motor with same |
| CN107968521A (en) * | 2016-10-20 | 2018-04-27 | 北京精密机电控制设备研究所 | A kind of rotor and the integrated servomotor of leading screw |
| CN107612170A (en) * | 2017-10-23 | 2018-01-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Magnet ring, rotor and motor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |