CN204681181U - Rotor and there is the motor of this rotor - Google Patents
Rotor and there is the motor of this rotor Download PDFInfo
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- CN204681181U CN204681181U CN201520226737.5U CN201520226737U CN204681181U CN 204681181 U CN204681181 U CN 204681181U CN 201520226737 U CN201520226737 U CN 201520226737U CN 204681181 U CN204681181 U CN 204681181U
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- permanent magnet
- rotor
- permanent magnets
- magnetic yoke
- conductive magnetic
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Abstract
The utility model provides a kind of rotor and has the motor of this rotor, this rotor comprises rotating shaft, rotor conductive magnetic yoke, multiple first set of permanent magnets and multiple second set of permanent magnets, described multiple first set of permanent magnets and described multiple second set of permanent magnets along the circumference alternate intervals distribution equally spacedly of described rotor conductive magnetic yoke, the adjacent and coincident of the projection in a plane perpendicular to described rotating shaft of described first set of permanent magnets and described second set of permanent magnets.The utility model has the torque pulsation reducing electromagnetic factors and cause, and increases moment of torsion and externally does work, therefore have the beneficial effect providing motor efficiency, energy savings.
Description
Technical field
The utility model relates to electromagnetic arts, particularly relates to a kind of rotor and has the motor of this rotor.
Background technology
Brushless permanent magnetic brushless of the prior art is due to electromagnetic factors, and the impact of teeth groove, electric current commutates, and inductive reaction etc. can produce stronger pulsating torque.Also has the torque pulsation that electromagnetic factors causes, electromagnetic torque pulsation is the torque pulsation because stator current and rotor field interact and produce, it and current waveform, back emf waveform, air gap flux density be distributed with direct relation, ideally, stator current is square wave, back emf waveform is trapezoidal wave, flat-top width is 120 ° of electric degree angles, electromagnetic torque is constant, and due to the reason of Design and manufacture aspect in real electrical machinery, back emf waveform may be made not to be trapezoidal wave, flat-top width is not 120 ° of electric degree angles, the torque ripple of motor will be caused like this.The torque pulsation that teeth groove causes, due to the existence of stator coring groove tooth, makes permanent magnet lead uneven with the air gap of corresponding stator surface, when the rotor rotates, makes to change at a state internal magnetic circuit magnetic resistance, thus causes torque pulsation.Make motor not high for the service efficiency of electric energy.
Utility model content
The defect that the electric energy service efficiency of the motor caused due to torque pulsation for motor in prior art is not high, provides a kind of rotor and has the motor of this rotor.
The technological means that the utility model technical solution problem adopts is: provide a kind of rotor, comprise rotating shaft, rotor conductive magnetic yoke, multiple first set of permanent magnets and multiple second set of permanent magnets, described multiple first set of permanent magnets and described multiple second set of permanent magnets along the circumference alternate intervals distribution equally spacedly of described rotor conductive magnetic yoke, the adjacent and coincident of the projection in a plane perpendicular to described rotating shaft of described first set of permanent magnets and described second set of permanent magnets;
Described rotor conductive magnetic yoke comprises the first rotor conductive magnetic yoke be socketed on successively in described rotating shaft, the second rotor conductive magnetic yoke and third trochanter conductive magnetic yoke, and the first set of permanent magnets described in each and the second set of permanent magnets described in each comprise first permanent magnet, be arranged in described the first rotor conductive magnetic yoke the second permanent magnet and be arranged in described second rotor conductive magnetic yoke respectively and be arranged at the 3rd permanent magnet in described third trochanter conductive magnetic yoke; The magnetic pole different name towards described rotating shaft of adjacent two described first permanent magnets, the magnetic pole different name towards described rotating shaft of adjacent two described second permanent magnets, the magnetic pole different name towards described rotating shaft of adjacent two described 3rd permanent magnets;
First permanent magnet of described first set of permanent magnets and the 3rd permanent magnet respectively with the magnetic pole different name towards described rotating shaft of the second permanent magnet of described first set of permanent magnets, this first permanent magnet, the second permanent magnet and the 3rd permanent magnet projection are on the plane adjacent successively;
First permanent magnet of described second set of permanent magnets and the 3rd permanent magnet respectively with the magnetic pole different name towards described rotating shaft of the second permanent magnet of described second set of permanent magnets, this first permanent magnet, the second permanent magnet and the 3rd permanent magnet projection are on the plane adjacent successively.
In the rotor that the utility model provides, the edge of the first permanent magnet of described first set of permanent magnets, the second permanent magnet and the 3rd permanent magnet projection on the plane overlaps mutually successively.
In the rotor that the utility model provides, the edge of the first permanent magnet of described second set of permanent magnets, the second permanent magnet and the 3rd permanent magnet projection on the plane overlaps mutually successively.
In the rotor that the utility model provides, in described the first rotor conductive magnetic yoke, described second rotor conductive magnetic yoke and described third trochanter conductive magnetic yoke rotating shaft described in distance apart from identical position be respectively arranged with multiple respectively with the slot of described first permanent magnet, described second permanent magnet and described 3rd permanent magnet adaptation, slot described in each extends along the direction being parallel to described rotating shaft.
In the rotor that the utility model provides, described first permanent magnet, described second permanent magnet and described 3rd permanent magnet are all in cuboid or cube-shaped.
In the rotor that the utility model provides, described first permanent magnet, described second permanent magnet and described 3rd permanent magnet are all the cylinder of arc-shaped in cross section, when described first permanent magnet, described second permanent magnet and described 3rd permanent magnet are arranged in corresponding described slot respectively, the center of circle of the cross section of described first permanent magnet, described second permanent magnet and described 3rd permanent magnet is positioned on the axial line of described rotating shaft.
In the rotor that the utility model provides, described rotating shaft comprises cylindrical main body and is arranged on several fins on the sidewall of described main body, fin described in each extends along the direction being parallel to axis of the body, and several fins described are uniformly distributed along the circumference of described main body;
Described rotor conductive magnetic yoke is provided with columniform through hole along its direction of axis line, and the sidewall that described through hole is corresponding is provided with several draw-in grooves, and described main body is set in described through hole, and several fins described are embedded in several draw-in grooves described respectively.
In the rotor that the utility model provides, be bonded together by insulating cement between described the first rotor conductive magnetic yoke, described second rotor conductive magnetic yoke and described third trochanter conductive magnetic yoke.
The utility model additionally provides a kind of polyphase machine, comprise chute stator and the rotor described in above-mentioned any one, described chute stator comprises multi-phase excitation coil and stator core, described stator core is provided with the helical teeth for described multi-phase excitation coil around the home, is formed between described helical teeth and be used for the skewed slot that described multi-phase excitation coil is put on limit.
The utility model has following beneficial effect: the arrangement mode of the utility model first set of permanent magnets and the second set of permanent magnets makes the first set of permanent magnets and the second set of permanent magnets resistance when entering the electromagnetic field that chute stator produces less; Due to each set of permanent magnets the second permanent magnet respectively with the first permanent magnet and the 3rd permanent magnet antipole of this group, to power supply feedback electric energy in this second permanent magnet rotating process; Chute stator and step-like rotor engagement make the air gap of stator surface even, and rotor is more smooth-going, and moment of torsion more strengthens, and can eliminate pulsating torque, therefore has the beneficial effect improving motor efficiency, energy savings.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the decomposition texture schematic diagram of the rotor in the utility model one preferred embodiment;
Fig. 2 be embodiment illustrated in fig. 1 in the side wall surface of rotor permanent magnet arrangement schematic diagram when being launched into a plane;
Fig. 3 be embodiment illustrated in fig. 1 in the vertical view of rotor conductive magnetic yoke;
Fig. 4 is the vertical view of the rotor conductive magnetic yoke of rotor in another embodiment;
Fig. 5 is the structural representation after chute stator in an embodiment has A phase excitation coil around the home;
Fig. 6 be embodiment illustrated in fig. 5 in the structural representation had around the home after the expansion of the chute stator of A phase excitation coil.
Embodiment
Fig. 1 shows the rotor in the utility model first embodiment, and this rotor is mainly used in coordinating to form motor with chute stator.Simultaneously with reference to Fig. 2, this rotor comprises rotating shaft 1, rotor conductive magnetic yoke 2, multiple first set of permanent magnets 3 and multiple second set of permanent magnets 4.Multiple first set of permanent magnets 3 and multiple second set of permanent magnets 4 along the circumference alternate intervals distribution equally spacedly of rotor conductive magnetic yoke 2, the adjacent and coincident of the projection in a plane perpendicular to rotating shaft 1 of the first set of permanent magnets 3 and the second set of permanent magnets 4.
Rotor conductive magnetic yoke 2 is roughly in cylindric, and it comprises and is socketed on the first rotor conductive magnetic yoke 21, second rotor conductive magnetic yoke 22 in rotating shaft 1 and third trochanter conductive magnetic yoke 23 successively.Be bonded together by insulating cement between the first rotor conductive magnetic yoke 21, second rotor conductive magnetic yoke 22 and third trochanter conductive magnetic yoke 23.Wherein, the first set of permanent magnets 3 and the second set of permanent magnets 4 all stepped.Each first set of permanent magnets 3 and each second set of permanent magnets 4 comprise the first permanent magnet a, be arranged in a first rotor conductive magnetic yoke 21 second permanent magnet b and be arranged in the second rotor conductive magnetic yoke 22 respectively and are arranged at the 3rd permanent magnet c in third trochanter conductive magnetic yoke 23.The magnetic pole of the first permanent magnet a, the second permanent magnet b and the 3rd permanent magnet c all along rotor conductive magnetic yoke 2 radial distribution and size shape is all identical.The magnetic pole different name towards rotating shaft 1 of adjacent two the first permanent magnet a, the magnetic pole different name towards rotating shaft 1 of adjacent two the second permanent magnet b, the magnetic pole different name towards rotating shaft 1 of adjacent two the 3rd permanent magnet c.
Further, first permanent magnet a of the first set of permanent magnets 3 and the 3rd permanent magnet c respectively with the magnetic pole different name towards rotating shaft 1 of the second permanent magnet b of the first set of permanent magnets 3, this first permanent magnet a, the second permanent magnet b and the 3rd permanent magnet c projection in the plane adjacent successively; First permanent magnet a of the second set of permanent magnets 4 and the 3rd permanent magnet c respectively with the magnetic pole different name towards rotating shaft 1 of the second permanent magnet b of the second set of permanent magnets 4, this first permanent magnet a, the second permanent magnet b and the 3rd permanent magnet c projection in the plane adjacent successively.First permanent magnet a, the second permanent magnet b of each set of permanent magnets and the cross section along the radial direction perpendicular to rotor conductive magnetic yoke 2 of the 3rd permanent magnet c is rectangle or square.
The magnetic field that the first set of permanent magnets 3 in the present embodiment or the second set of permanent magnets 4 produce is when the magnetic field that the multi-phase excitation coil entering chute stator produces, because chute stator be skewed slot and the first set of permanent magnets 3 or the second set of permanent magnets 4 all stepped, so the first permanent magnet a, the second permanent magnet b and the 3rd permanent magnet c are when entering the magnetic field of multi-phase excitation coil generation with oblique angle, the resistance of magnetic field for each set of permanent magnets of magnet exciting coil generation can be reduced.After the first set of permanent magnets 3 or the second set of permanent magnets 4 progress into the magnetic field of multi-phase excitation coil generation of chute stator, interactional magnetic field line increases, and multi-phase excitation coil increases for the thrust of rotor.Further, the first set of permanent magnets 3 that chute stator and stairstepping are arranged and the second set of permanent magnets 4 coordinate, and make the air gap of stator surface even, rotor is more smooth-going, moment of torsion more strengthens, and can eliminate pulsating torque, therefore has the beneficial effect improving motor efficiency, energy savings.
Because in same set of permanent magnets, middle second permanent magnet b is antipole with the first permanent magnet a above and the 3rd permanent magnet c below, the eddy current loss that motor can be suppressed like this to bring in the running and heat, to power supply feedback electric energy, can that is to say and save electric energy.
Preferably, the first permanent magnet a, the second permanent magnet b of each the first set of permanent magnets 3 and the edge of the 3rd projection of permanent magnet c in the plane perpendicular to rotating shaft 1 overlap mutually successively.The magnetic that can improve the second permanent magnet b in each first set of permanent magnets 3 so further, to improve driving torque, makes the service efficiency of electric energy be improved.In the present embodiment, the first permanent magnet a, the second permanent magnet b of the second set of permanent magnets 4 and the edge of the 3rd permanent magnet c projection in the plane overlap mutually successively.The driving torque of the second permanent magnet b in each second set of permanent magnets 4 can be improved so further, to improve the service efficiency of electric energy.Size and the shape of this first permanent magnet a, the second permanent magnet b and the 3rd permanent magnet c are all preferred forms mutually.
Particularly, in the first rotor conductive magnetic yoke 21, second rotor conductive magnetic yoke 22 and third trochanter conductive magnetic yoke 23 distance rotating shaft 1 apart from identical position be respectively arranged with multiple respectively with the slot d of the first permanent magnet a, the second permanent magnet b and the 3rd permanent magnet c adaptation, each slot d extends along the direction being parallel to rotating shaft 1.First permanent magnet a, the second permanent magnet b and the 3rd permanent magnet c are all in cuboid or cube-shaped.Accordingly, as shown in Figure 3, slot d is also in rectangular-shaped or cube-shaped.
In the present embodiment, several fins that rotating shaft 1 comprises cylindrical main body (not shown) and is arranged on the sidewall of main body, each fin along be parallel to body shaft to direction extend, and several fins are uniformly distributed along the circumference of main body.Again as shown in Figure 3, rotor conductive magnetic yoke 2 is provided with columniform through hole 2a along its direction of axis line, the sidewall that through hole 2a is corresponding is provided with several draw-in grooves 2b, and main body is set in through hole 2a, and several fins are embedded in several draw-in grooves 2b respectively.Can prevent rotating shaft 1 from rotating relative to rotor conductive magnetic yoke 2, and better control the first rotor conductive magnetic yoke 21, second rotor conductive magnetic yoke 22 and third trochanter conductive magnetic yoke 23 relative position in the circumferential, be convenient to install.
Certainly, the first permanent magnet a, the second permanent magnet b and the 3rd permanent magnet c also can be respectively the cylinder that cross section is arc-shaped.When first permanent magnet a, the second permanent magnet b and the 3rd permanent magnet c are arranged in corresponding slot d respectively, the center of circle of the cross section of the first permanent magnet a, the second permanent magnet b and the 3rd permanent magnet c is positioned on the axial line of rotating shaft 1.Accordingly, as shown in Figure 4, slot d is also for cross section is arc-shaped.Adopt the permanent magnet of this shape can improve the power consumption efficiency of motor further.
The utility model additionally provides a kind of heterogeneous skewed slot motor, comprise the rotor in chute stator and above-described embodiment, this chute stator comprises multi-phase excitation coil and stator core, stator core is provided with the helical teeth for multi-phase excitation coil around the home, is formed between helical teeth and be used for the skewed slot that multi-phase excitation coil is put on limit.Be illustrated in figure 5 the schematic diagram around the home of the A phase coil in this multi-phase excitation coil, the coil of other phases is according to predetermined needs, and the certain helical teeth number in interval around the home respectively.Simultaneously with reference to Fig. 3, the central angle Y that a pole of this A phase excitation coil strides across is roughly equal with the central angle alpha that epitrochanterian each first permanent magnet a, the second permanent magnet b and the 3rd permanent magnet c stride across respectively.With reference to Fig. 2 and Fig. 6, the inclination angle of skewed slot is identical with the inclination angle of the first set of permanent magnets and the second set of permanent magnets, in the present embodiment, is 17 degree.
Should be understood that; for those of ordinary skills; by reference to the accompanying drawings embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; instead of it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; do not departing under the ambit that the utility model aim and claim protect; also can make a lot of form, these all belong within protection of the present utility model.
Claims (9)
1. a rotor, it is characterized in that, comprise rotating shaft (1), rotor conductive magnetic yoke (2), multiple first set of permanent magnets (3) and multiple second set of permanent magnets (4), described multiple first set of permanent magnets (3) and described multiple second set of permanent magnets (4) along the circumference alternate intervals distribution equally spacedly of described rotor conductive magnetic yoke (2), the adjacent and coincident of the projection in a plane perpendicular to described rotating shaft (1) of described first set of permanent magnets (3) and described second set of permanent magnets (4);
Described rotor conductive magnetic yoke (2) comprises the first rotor conductive magnetic yoke (21) be socketed on successively in described rotating shaft (1), second rotor conductive magnetic yoke (22) and third trochanter conductive magnetic yoke (23), first set of permanent magnets (3) described in each and the second set of permanent magnets (4) described in each comprise one respectively and are arranged at the first permanent magnet (a) on described the first rotor conductive magnetic yoke (21), one the second permanent magnet (b) and be arranged in described second rotor conductive magnetic yoke (22) is arranged at the 3rd permanent magnet (c) on described third trochanter conductive magnetic yoke (23), the magnetic pole different name towards described rotating shaft (1) of adjacent two described first permanent magnets (a), the magnetic pole different name towards described rotating shaft (1) of adjacent two described second permanent magnets (b), the magnetic pole different name towards described rotating shaft (1) of adjacent two described 3rd permanent magnets (c),
First permanent magnet (a) of described first set of permanent magnets (3) and the 3rd permanent magnet (c) respectively with the magnetic pole different name towards described rotating shaft (1) of the second permanent magnet (b) of described first set of permanent magnets (3), this first permanent magnet (a), the second permanent magnet (b) and the 3rd permanent magnet (c) projection are on the plane adjacent successively;
First permanent magnet (a) of described second set of permanent magnets (4) and the 3rd permanent magnet (c) respectively with the magnetic pole different name towards described rotating shaft (1) of the second permanent magnet (b) of described second set of permanent magnets (4), this first permanent magnet (a), the second permanent magnet (b) and the 3rd permanent magnet (c) projection are on the plane adjacent successively.
2. rotor according to claim 1, it is characterized in that, the edge of the first permanent magnet (a) of described first set of permanent magnets (3), the second permanent magnet (b) and the 3rd permanent magnet (c) projection on the plane overlaps mutually successively.
3. rotor according to claim 2, it is characterized in that, the edge of the first permanent magnet (a) of described second set of permanent magnets (4), the second permanent magnet (b) and the 3rd permanent magnet (c) projection on the plane overlaps mutually successively.
4. the rotor according to any one of claims 1 to 3, it is characterized in that, rotating shaft (1) described in the upper distance of described the first rotor conductive magnetic yoke (21), described second rotor conductive magnetic yoke (22) and described third trochanter conductive magnetic yoke (23) is respectively arranged with multiple slot (d) adaptive with described first permanent magnet (a), described second permanent magnet (b) and described 3rd permanent magnet (c) respectively apart from identical position, and slot (d) described in each extends along the direction being parallel to described rotating shaft (1).
5. rotor according to claim 4, is characterized in that, described first permanent magnet (a), described second permanent magnet (b) and described 3rd permanent magnet (c) are all in cuboid or cube-shaped.
6. rotor according to claim 4, it is characterized in that, described first permanent magnet (a), described second permanent magnet (b) and described 3rd permanent magnet (c) are all the cylinder of arc-shaped in cross section, described first permanent magnet (a), when described second permanent magnet (b) and described 3rd permanent magnet (c) are arranged on (d) in corresponding described slot respectively, described first permanent magnet (a), the center of circle of the cross section of described second permanent magnet (b) and described 3rd permanent magnet (c) is positioned on the axial line of described rotating shaft (1).
7. rotor according to claim 6, it is characterized in that, described rotating shaft (1) comprises cylindrical main body and is arranged on several fins on the sidewall of described main body, fin described in each extends along the direction being parallel to axis of the body, and several fins described are uniformly distributed along the circumference of described main body;
Described rotor conductive magnetic yoke (2) is provided with columniform through hole (2a) along its direction of axis line, the sidewall that described through hole (2a) is corresponding is provided with several draw-in grooves (2b), described main body is set in described through hole (2a), and several fins described are embedded in described several draw-in grooves (2b) respectively.
8. rotor according to claim 1, it is characterized in that, be bonded together by insulating cement between described the first rotor conductive magnetic yoke (21), described second rotor conductive magnetic yoke (22) and described third trochanter conductive magnetic yoke (23).
9. a polyphase machine, it is characterized in that, comprise chute stator and the rotor as described in any one of claim 1 to 8, described chute stator comprises multi-phase excitation coil and stator core, described stator core is provided with the helical teeth for described multi-phase excitation coil around the home, is formed between described helical teeth and be used for the skewed slot that described multi-phase excitation coil is put on limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520226737.5U CN204681181U (en) | 2015-04-15 | 2015-04-15 | Rotor and there is the motor of this rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520226737.5U CN204681181U (en) | 2015-04-15 | 2015-04-15 | Rotor and there is the motor of this rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204681181U true CN204681181U (en) | 2015-09-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520226737.5U Active CN204681181U (en) | 2015-04-15 | 2015-04-15 | Rotor and there is the motor of this rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204681181U (en) |
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2015
- 2015-04-15 CN CN201520226737.5U patent/CN204681181U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181123 Address after: 518108 Building C, Tangtou Community Sanlian Industrial Zone, Shiyan Street, Baoan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen ideal energy saving motor Co., Ltd. Address before: Room 201, Building A, No. 1 Qianwan and Road, Qianhai Shenzhen-Hong Kong Cooperation Zone, Shenzhen, Guangdong 518000 Patentee before: Jin Sheng Science and Technology Ltd. of Shenzhen |