CN207039324U - Tangential motor, tangential rotor and its rotor core - Google Patents
Tangential motor, tangential rotor and its rotor core Download PDFInfo
- Publication number
- CN207039324U CN207039324U CN201720993804.5U CN201720993804U CN207039324U CN 207039324 U CN207039324 U CN 207039324U CN 201720993804 U CN201720993804 U CN 201720993804U CN 207039324 U CN207039324 U CN 207039324U
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- Prior art keywords
- rotor
- bore
- rotor core
- tangential
- magnet steel
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Abstract
The utility model discloses a kind of tangential motor, tangential rotor and its rotor core, rotor core includes rotor body (1) and the magnet steel groove (2) being arranged on the rotor body (1), 2N are provided with rotor magnetic pole between the two neighboring magnet steel groove (2) every bore (11), the 2N pole center line both sides that the rotor magnetic pole is symmetricly set in every bore (11)；The center of circle of the width every bore (11) along the rotor body (1) increases to the direction on the outside of it, and the outside hole face every bore (11) on the outside of the rotor body (1) is the arcwall face being arranged concentrically with the rotor body (1).Rotor core provided by the utility model, the vibrating noise of motor is reduced, improves electric efficiency.
Description
Technical field
The utility model is related to motor device technical field, more particularly to a kind of tangential motor, tangential rotor and its
Rotor core.
Background technology
Because tangential permanent magnet synchronous motor has the effect of " poly- magnetic ", compared with radial permanent magnet synchronous motor, can produce more
High air gap flux density so that motor has small volume, in light weight, and torque is big, and power density is big, electric efficiency height and dynamic property
The advantages that good, the industrial circles such as servo-drive system, electric propulsion and household electric appliances are applied to more and more.
At present, the air gap flux density of tangential permanent magnet synchronous motor and back-emf contain all kinds of space harmonicses, due to tangential permanent magnet
Slotted on the stator of synchronous motor so that magnetic circuit magnetic conductance is uneven, and air gap flux density, back-emf contain all kinds of space harmonicses, and humorous
Ripple accounting is big, and all kinds of harmonic interactions produce low order Reeb, the vibration noise of expanded motor.Waveform sine is poor, waveform
Aberration rate is high so that the vibration of motor and noise are larger, and influence user uses health, limits the application of motor.
Therefore, the vibrating noise of motor how is reduced, is those skilled in the art's urgent problem to be solved.
Utility model content
In view of this, the utility model provides a kind of rotor core, to reduce the vibrating noise of motor.The utility model
Additionally provide a kind of tangential rotor with above-mentioned rotor core and tangential motor.
To achieve the above object, the utility model provides following technical scheme：
A kind of rotor core, including rotor body and the magnet steel groove that is arranged on the rotor body, it is two neighboring described
2N are provided with rotor magnetic pole between magnet steel groove every bore, the rotor magnetic pole is symmetricly set in every bore described in 2N
Pole center line both sides；
The center of circle of the width every bore along the rotor body increases to the direction on the outside of it, described close every bore
Outside hole face on the outside of the rotor body is the arcwall face being arranged concentrically with the rotor body.
Preferably, in above-mentioned rotor core, the minimum range≤1.5D between bore and the magnet steel groove, D are
The rotor core is used for the gas length coordinated with stator.
Preferably, in above-mentioned rotor core, the shape between the outside hole face of bore and the outer wall of the rotor body
Into the first magnetic bridge, the width of first magnetic bridge is A, and it is D that the rotor core, which is used for the gas length that stator coordinates,；
1.5≥A/D≥1。
Preferably, it is described to form the second magnetic bridge between bore and the magnet steel groove in above-mentioned rotor core, described
The width in the outside of two magnetic bridges is more than the width on the inside of it.
Preferably, in above-mentioned rotor core, width of second magnetic bridge on the outside of the rotor body is I, institute
State rotor core and be used to the gas length that stator coordinates be D；
8≥I/D≥5。
Preferably, in above-mentioned rotor core, the length every radial direction of the bore along the rotor body is J, institute
State rotor core and be used to the gas length that stator coordinates be D；
5.5≥J/D≥3。
Preferably, in above-mentioned rotor core, the Breadth Maximum every bore is K, and the rotor core is used for and stator
The gas length of cooperation is D；
2≥K/D≥1.5。
Preferably, it is described to form the second magnetic bridge between bore and the magnet steel groove in above-mentioned rotor core, described
Two magnetic bridges are wide magnetic bridge.
Preferably, in above-mentioned rotor core, the width of second magnetic bridge is set to B, and the rotor core is used for determining
The gas length that son coordinates is D；
1.2≥B/D≥0.9。
Preferably, in above-mentioned rotor core, the magnetic pole logarithm of motor is P, and the Breadth Maximum every bore is H, described
Maximum angle between bore and magnet steel groove center line adjacent thereto is θ 2, and the magnet steel groove has towards the rotor sheet
The opening that external side is set, the width of the opening is L, the center line symmetrical setting being open relative to the magnet steel groove,
Angle between the center line of one lateral edges of the opening and the magnet steel groove is θ 1；
Preferably, in above-mentioned rotor core, in addition to the symmetrically arranged auxiliary of pole center line along the rotor body
Every bore.
Preferably, in above-mentioned rotor core, in addition on the rotor magnetic pole being arranged between the two neighboring magnet steel groove,
Fixing hole for fixed rotor punching；
The auxiliary is located at outside of the fixing hole along the rotor body radial direction every bore.
Preferably, in above-mentioned rotor core, the auxiliary is justified every the width of bore along outer lateral its of the rotor body
Heart direction gradually increases.
Preferably, in above-mentioned rotor core, inner side hole face of the auxiliary every the close rotor body center of circle of bore
The upper lug boss with towards the outside of rotor body projection.
Preferably, in above-mentioned rotor core, the auxiliary is F every the length of bore, and the length every bore is C；
0.7≥C/F≥0.2。
Preferably, in above-mentioned rotor core, 0.6 >=C/F >=0.4.
Preferably, in above-mentioned rotor core, it is provided between the magnet steel groove and the shaft hole of the rotor body additional
Magnet isolation tank, the 3rd magnetic bridge is formed between the additional magnet isolation tank and the magnet steel groove.
The utility model additionally provides a kind of tangential rotor, including rotor core and is arranged at cutting in its magnet steel groove
To magnetization permanent magnet, the rotor core is the rotor core described in any one as described above.
Preferably, in above-mentioned tangential rotor, width of the tangential magnetization permanent magnet on the outside of the rotor core
Degree is more than its width close to the rotor core center of circle.
The utility model additionally provides a kind of tangential motor, including tangential rotor and stator, and the tangential motor turns
Son is tangential rotor as described above.
It can be seen from the above technical scheme that rotor core provided by the utility model, every bore close to rotor body
The outside hole face in outside is the arcwall face that is arranged concentrically with rotor body, therefore so that every the outer wall of bore and rotor body it
Between leave a segment distance, form the first magnetic bridge, the thickness of the first magnetic bridge is uniform.It effectively ensure that and imitated every bore every magnetic
Fruit.The magnetic flux trend for improving rotor magnetic pole every bore, has been effectively played by setting so that air gap flux density, counter potential waveform are just
String degree improves, and reduces the effect of harmonic wave accounting and harmonic loss, reduces the vibrating noise of motor, improve electric efficiency.
The utility model additionally provides a kind of motor with above-mentioned tangential rotor.Due to above-mentioned tangential rotor
With above-mentioned technique effect, motor and motor with above-mentioned tangential rotor also should with same technique effect,
This no longer tires out one by one states.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the tangential motor that the utility model embodiment provides；
Fig. 2 is the first structural representation for the tangential rotor that the utility model embodiment provides；
Fig. 3 is second of structural representation of the tangential rotor that the utility model embodiment provides；
Fig. 4 is second of structural representation of the tangential rotor that the utility model embodiment provides；
Fig. 5 is the tangential motor and a kind of torque arteries and veins of tangential motor of the prior art that the utility model embodiment provides
Dynamic comparison diagram；
Fig. 6 is the torque pulsation coefficient of tangential motor and A/D graph of a relation that the utility model embodiment provides；
Fig. 7 is the back-emf harmonic wave accounting and unloaded magnetic linkage and I/D for the tangential motor that the utility model embodiment provides
Graph of a relation；
Fig. 8 is the back-emf harmonic wave accounting and unloaded magnetic linkage and J/D for the tangential motor that the utility model embodiment provides
Graph of a relation；
Fig. 9 is the Gas-gap Magnetic Field Resonance Wave content of tangential motor and C/F graph of a relation that the utility model embodiment provides.
Embodiment
The utility model discloses a kind of tangential rotor, to improve heating effect and heating efficiency.The utility model
Additionally provide a kind of motor with above-mentioned tangential rotor.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
It refer to Fig. 1, the utility model embodiment provides a kind of rotor core, including rotor body 1 and being arranged at turns
Magnet steel groove 2 on sub- body 1,2N is provided with every bore 11 on the rotor magnetic pole between two neighboring magnet steel groove 2,2N every magnetic
Hole 11 is symmetricly set in the pole center line both sides of rotor magnetic pole；Every the center of circle of the width along rotor body 1 of bore 11 to outside it
The direction increase of side, it is the arc being arranged concentrically with rotor body 1 every outside hole face of the bore 11 close to the outside of rotor body 1
Face.
The rotor core that the utility model embodiment provides, it is every outside hole face of the bore 11 close to the outside of rotor body 1
The arcwall face being arranged concentrically with rotor body 1, therefore so that left between the outer wall of bore 11 and rotor body 1 one section away from
From forming the first magnetic bridge 14, the thickness of the first magnetic bridge 14 is uniform.Effectively it ensure that the magnetism isolating effect every bore 11.Pass through
Set and every bore 11, effectively played the magnetic flux trend for improving rotor magnetic pole so that air gap flux density, counter potential waveform sine degree carry
Height, the effect of harmonic wave accounting and harmonic loss is reduced, the vibrating noise of motor is reduced, improves electric efficiency.
As shown in figure 5, with the utility model embodiment provide rotor core motor, torque stability apparently higher than
Existing motor.
Further, because the distance every bore 11 and magnet steel groove 2 can not be excessive, in order to formed therebetween second every
Magnetic bridge 15, minimum range≤1.5D, D between bore 11 and magnet steel groove 2 are the air gap that rotor core is used to coordinate with stator
Length.
Preferably, form the first magnetic bridge 14 between the outside hole face of bore 11 and the outer wall of rotor body 1, first every
The width of magnetic bridge 14 is A, and it is D that rotor core, which is used for the gas length that stator coordinates,.Found by research, every bore 11 with turning
Influence of the distance between the sub- outer wall of body 1 to torque pulsation is as shown in Figure 6.Wherein, as A/D >=1, it is allowed to sub-fraction magnetic
The first magnetic bridge 14 is crossed all, is transmitted, and is improved magnetic flux in magnetic pole and is moved towards, also improves the distribution in motor gas-gap magnetic field, reduce
Harmonic wave accounting, motor oscillating noise and harmonic loss, improve electric efficiency.As A/D ＜ 1, due to every bore 11 excessively
Close to rotor body 1 outer wall so that the width A of the first magnetic bridge 14 is too small, equivalent to rotor body 1 outer wall set up it is recessed
Groove, tooth, the effect of grooves of stator and rotor are increased, increases the torque pulsation of motor on the contrary.But as A/D ＞ 1.5, the
The width of one magnetic bridge 14 is larger, and most of magnetic flux can still change by the magnetic bridge to air gap transmission to air-gap field distribution
Kind influence is smaller, and harmonic wave accounting is still larger, and the vibration noise of motor does not reduce.Therefore, in the present embodiment, 1.5 >=A/D >=1.
In the rotor core that the present embodiment provides, form the second magnetic bridge 15 between bore 11 and magnet steel groove 2, second every
The width in the outside of magnetic bridge 15 is more than the width on the inside of it.
Further, width of second magnetic bridge 15 close to the outside of rotor body 1 is I, and rotor core is used to match somebody with somebody with stator
The gas length of conjunction is D.Found by simulation study, every bore 11 close to magnet steel groove 2, every being air in bore 11, therefore every
Bore 11 can change trend of the magnetic flux of permanent magnet in rotor magnetic pole, when the second magnetic bridge 15 is designed as wide at the top and narrow at the bottom, grind
Study carefully discovery, width I of second magnetic bridge 15 close to the outside of rotor body 1 has to winding back emf harmonic wave accounting and unloaded magnetic linkage
Large effect, as shown in fig. 7, when I/D is less than 5, every bore 11 permanent magnet can be stopped close to the end in the outside of rotor body 1
Caused magnetic linkage line enters stator, reduces the unloaded magnetic linkage of motor.But after I/D is more than 8, to air-gap field magnetic field
Improvement be deteriorated.It is therefore preferred that 8 >=I/D >=5 when, can further improve the magnetic flux trend in rotor magnetic pole, make
Obtain air gap Distribution of Magnetic Field evenly, harmonic wave accounting is lower, and motor oscillating noise is lower, while motor can obtain larger zero load
Magnetic linkage.The downside width of magnetic bridge 2 is less than width on the upside of magnetic bridge simultaneously, and the downside width of the second magnetic bridge 15 is more than 0.5mm, increases
Every bore 11 and the connection width of magnet steel groove 2, the Mechanical Structure Strength of rotor is improved.Therefore, 8 >=I/D >=5.
It is J every the length of radial direction of the bore 11 along rotor body 1, rotor core is used to grow with the air gap that stator coordinates
Spend for D.Find that longer every the length J of bore 11, the influence to permanent magnet magnetic flux bang path is bigger by research.Fig. 8 institutes
Show, as J/D >=3, can effectively limit the magnetic flux trend in rotor, optimize the distribution of air-gap field, reduce harmonic wave accounting
And motor oscillating noise.But as J/D ＞ 5.5, every the barrier that bore 11 is excessive to the magnetic flux of permanent magnet so that motor
Magnetic linkage and torque reduce, and the efficiency of motor declines.Therefore, in the present embodiment, it is preferable that 5.5 >=J/D >=3.
Preferably, it is K every the Breadth Maximum of bore 11, it is D that rotor core, which is used for the gas length that stator coordinates,.By
Simulation study is found, air gap flux density, back-emf harmonic wave accounting are had a great influence every the width K of bore 11.Due to being leaned on every bore 11
Nearly air gap, rotor magnetic pole magnetic flux can be changed along the circumferential direction to the magnetic flux size of air gap transmission every the width K of bore 11, and then
Change air-gap field distribution.As K/D >=1.5, magnetic flux every what bore 11 and pole center line were transmitted at bore along lacking, along magnetic
Core portion transmission of the pole every bore 11 and pole center line between bore it is more, now, improve magnetic circuit magnetic flux trend
And air-gap field distribution, the sine degree of air gap magnetic density waveform is improved, reduces back-emf harmonic wave accounting, vibration noise of motor and humorous
Ripple is lost, and improves electric efficiency.But as K/D ＞ 2, every the iron core portion of bore 11 and pole center line between bore
Point too small, magnetic flux high concentration here, increases the air gap flux density at this, and air gap magnetic density waveform distorts once again, harmonic wave accounting
Increase, motor oscillating noise increase.Preferably, 2 >=K/D >=1.5.
As shown in figure 3, in the present embodiment, due to having the entity portion of rotor body 1 between bore 11 and magnet steel groove 2
Point.The second magnetic bridge 15 is formed between bore 11 and magnet steel groove 2, the second magnetic bridge 15 is wide magnetic bridge.
Preferably, the width of the second magnetic bridge 15 is set to B, and it is D that rotor core, which is used for the gas length that stator coordinates,.Through
Cross simulation study discovery, the second magnetic bridge about 15 width it is consistent, can further limit permanent magnet close to rotor outside
Magnetic flux to air gap transmission, improve the distribution of air-gap field.As B/D >=0.9, it is allowed to which sub-fraction magnetic flux is through second every magnetic
Bridge 15 improves the uniformity of magnetic circuit magnetic conductance and the sine degree of air gap magnetic density waveform, reduces air gap flux density, anti-electricity to air gap transmission
Gesture harmonic wave accounting and torque pulsation, and then motor oscillating noise and harmonic loss are reduced, improve electric efficiency.But when
During B/D ＞ 1.2, the width B of the second magnetic bridge 15 is excessive, excessive to the magnetic flux of air gap transmission by the second magnetic bridge 15, at this
Air gap flux density increase, air gap magnetic density waveform sine degree be deteriorated, harmonic wave accounting increase, motor oscillating noise increase.Therefore, 1.2
≥B/D≥0.9。
Further, the magnetic pole logarithm of motor is P, every the Breadth Maximum of bore 11 be H, every bore 11 with it is adjacent thereto
Maximum angle between the center line of magnet steel groove 2 is θ 2, and magnet steel groove 2 has the opening set towards the outside of rotor body 1, opening
Width is L, the center line symmetrical setting being open relative to magnet steel groove 2, between a lateral edges of opening and the center line of magnet steel groove 2
Angle be θ 1；Wherein,When meeting the above situation, air-gap permeance uniformity compared with
Good, the magnetic of motor transmits even transition, and the torque pulsation of motor is relatively low, and air gap magnetic density waveform sine degree is preferable, harmonic wave accounting compared with
It is low, effectively reduce motor oscillating noise.
The utility model embodiment additionally provides rotor core, in addition to is symmetrically set along the pole center line of rotor body 1
The auxiliary put is every bore 12.By increasing auxiliary every bore 12, magnetism isolating effect is further increased.
Further, the rotor core in the present embodiment also includes the rotor magnetic being arranged between two neighboring magnet steel groove 2
On extremely, the fixing hole 13 for fixed rotor punching；Auxiliary is located at fixing hole 13 along the radial direction of rotor body 1 every bore 12
Outside.Wherein, it is provided with fixture in fixing hole 13.When fixing hole 13 is rivet hole, fixture is rivet；Work as fixing hole
13 when being screw hole, the structural strengthening bar of insertion connection rotor punching in screw hole.Fixing hole 13 can also be arranged to other
The hole of type, such as screwed hole, prism hole or elliptical aperture.
Preferably, aid in the width every bore 12 gradually increases along its outer lateral center of circle direction of rotor body 1.
As shown in Fig. 2 in the present embodiment, aid in having every in the inner side hole face in the center of circle of close rotor body 1 of bore 12
Have towards the raised lug boss in the outside of rotor body 1.By setting lug boss, fixing hole 13 can be avoided, facilitates fixing hole
13, with aiding in the arrangement every bore 12, also ensure that the mechanical strength of rotor core.
In the present embodiment, lug boss is that wedge angle is raised.It is of course also possible to it is raised or polygon that lug boss is arranged into fillet
Shape angle is raised.
Preferably, the length aided in every bore 12 is F, every the length of bore 11 be C；Found through simulation study, every bore
The ratio of length and the length every bore at magnetic pole center line line back-emf harmonic wave accounting is had a great influence, due to magnetic bridge 2
It is wide, therefore every the extended length of bore, the outer magnetic flux path of permanent magnet is influenceed further to increase, as shown in figure 9, when 0.7 >=
During C/F >=0.2, the magnetic flux for further improving rotor magnetic pole close to air gap moves towards, and further improves air-gap field distribution, further
Torque pulsation is reduced, the vibration noise of motor is further reduced, further reduces harmonic loss, further improve electric efficiency.
Preferably, 0.7 >=C/F >=0.2.
Wherein, it is closest approach and auxiliary of the auxiliary every bore 12 apart from the outside of rotor body 1 to aid in every the length F of bore 12
Every bore 12 apart from the distance between the closest approach in the center of circle of rotor body 1.Every bore 11 length C be every bore 11 apart from rotor
The closest approach in the outside of body 1 with every bore 11 apart from the distance between the closest approach in the center of circle of rotor body 1.
Further, 0.6 >=C/F >=0.4.
As shown in figure 4, being provided with additional magnet isolation tank 16 between the shaft hole of magnet steel groove 2 and rotor body 1, magnet isolation tank is added
The 3rd magnetic bridge is formed between 16 and magnet steel groove 2.By above-mentioned setting, the saturation degree that magnetizes of permanent magnet is effectively improved.
The utility model embodiment additionally provides a kind of tangential rotor, including rotor core and is arranged at its magnet steel groove
Interior tangential magnetization permanent magnet, rotor core are any rotor core as described above.Because above-mentioned rotor core has above-mentioned skill
Art effect, the tangential rotor with above-mentioned rotor core also no longer should one by one tire out state herein with same technique effect.
Preferably, tangentially width of the magnetization permanent magnet on the outside of rotor core is more than its width close to the rotor core center of circle
Degree.By above-mentioned setting, the anti-demagnetization capability of effective lifting motor.
The utility model embodiment additionally provides a kind of tangential motor, including tangential rotor and stator, its feature exist
In tangential rotor is tangential rotor as described above.Because above-mentioned tangential rotor has above-mentioned technique effect, have
The tangential motor of above-mentioned tangential rotor should also have same technique effect, no longer tire out one by one state herein.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (20)
1. a kind of rotor core, including rotor body (1) and the magnet steel groove (2) that is arranged on the rotor body (1), its feature
It is, 2N is provided with the rotor magnetic pole between the two neighboring magnet steel groove (2) every bore (11), 2N described every bore
(11) the pole center line both sides of the rotor magnetic pole are symmetricly set in；
The center of circle of the width every bore (11) along the rotor body (1) increases to the direction on the outside of it, described every bore
(11) the outside hole face on the outside of the rotor body (1) is the arcwall face being arranged concentrically with the rotor body (1).
2. rotor core as claimed in claim 1, it is characterised in that described between bore (11) and the magnet steel groove (2)
Minimum range≤1.5D, D be the rotor core be used for stator coordinate gas length.
3. rotor core as claimed in claim 1, it is characterised in that the outside hole face every bore (11) and the rotor
Form the first magnetic bridge (14) between the outer wall of body (1), the width of first magnetic bridge (14) is A, the rotor core
Gas length for coordinating with stator is D；
1.5≥A/D≥1。
4. rotor core as claimed in claim 1, it is characterised in that described between bore (11) and the magnet steel groove (2)
The second magnetic bridge (15) is formed, the width in the outside of second magnetic bridge (15) is more than the width on the inside of it.
5. rotor core as claimed in claim 4, it is characterised in that second magnetic bridge (15) is close to the rotor body
(1) width on the outside of is I, and it is D that the rotor core, which is used for the gas length that stator coordinates,；
8≥I/D≥5。
6. rotor core as claimed in claim 1, it is characterised in that it is described every bore (11) along the rotor body (1)
The length of radial direction is J, and it is D that the rotor core, which is used for the gas length that stator coordinates,；
5.5≥J/D≥3。
7. rotor core as claimed in claim 1, it is characterised in that the Breadth Maximum every bore (11) is K, described turn
It is D that sub- iron core, which is used for the gas length that stator coordinates,；
2≥K/D≥1.5。
8. rotor core as claimed in claim 1, it is characterised in that described between bore (11) and the magnet steel groove (2)
The second magnetic bridge (15) is formed, second magnetic bridge (15) is wide magnetic bridge.
9. rotor core as claimed in claim 8, it is characterised in that the width of second magnetic bridge (15) is set to B, described
It is D that rotor core, which is used for the gas length that stator coordinates,；
1.2≥B/D≥0.9。
10. rotor core as claimed in claim 1, it is characterised in that the magnetic pole logarithm of motor is P, described every bore (11)
Breadth Maximum be H, the maximum angle every bore (11) between magnet steel groove (2) center line adjacent thereto is θ 2, institute
Stating magnet steel groove (2) has towards the opening set on the outside of the rotor body (1), and the width of the opening is L, the opening phase
For the center line symmetrical setting of the magnet steel groove (2), the center line of a lateral edges of the opening and the magnet steel groove (2) it
Between angle be θ 1；
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11. rotor core as claimed in claim 1, it is characterised in that also include the pole center along the rotor body (1)
The symmetrically arranged auxiliary of line is every bore (12).
12. rotor core as claimed in claim 11, it is characterised in that also include being arranged at the two neighboring magnet steel groove
(2) on the rotor magnetic pole between, the fixing hole (13) for fixed rotor punching；
The auxiliary is located at outside of the fixing hole (13) along the rotor body (1) radial direction every bore (12).
13. rotor core as claimed in claim 11, it is characterised in that the auxiliary turns every the width of bore (12) along described
Its outer lateral center of circle direction of sub- body (1) gradually increases.
14. the rotor core as described in claim any one of 11-13, it is characterised in that auxiliary the leaning on every bore (12)
Have in the inner side hole face in nearly rotor body (1) center of circle towards the raised lug boss in the outside of the rotor body (1).
15. rotor core as claimed in claim 11, it is characterised in that the auxiliary is F every the length of bore (12), described
Every the length of bore (11) be C；
0.7≥C/F≥0.2。
16. rotor core as claimed in claim 15, it is characterised in that 0.6 >=C/F >=0.4.
17. rotor core as claimed in claim 1, it is characterised in that the magnet steel groove (2) and the rotor body (1)
Additional magnet isolation tank (16) is provided between shaft hole, the 3rd is formed between the additional magnet isolation tank (16) and the magnet steel groove (2)
Magnetic bridge.
18. a kind of tangential rotor, including rotor core and the tangential magnetization permanent magnet that is arranged in its magnet steel groove, its feature
It is, the rotor core is the rotor core as described in claim any one of 1-16.
19. tangential rotor as claimed in claim 18, it is characterised in that the tangential magnetization permanent magnet turns close to described
Width on the outside of sub- iron core is more than its width close to the rotor core center of circle.
20. a kind of tangential motor, including tangential rotor and stator, it is characterised in that the tangential rotor is as weighed
Profit requires the tangential rotor described in 18 or 19.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720993804.5U CN207039324U (en) | 2017-08-09 | 2017-08-09 | Tangential motor, tangential rotor and its rotor core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720993804.5U CN207039324U (en) | 2017-08-09 | 2017-08-09 | Tangential motor, tangential rotor and its rotor core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207039324U true CN207039324U (en) | 2018-02-23 |
Family
ID=61475538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720993804.5U Withdrawn - After Issue CN207039324U (en) | 2017-08-09 | 2017-08-09 | Tangential motor, tangential rotor and its rotor core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207039324U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240975A (en) * | 2017-08-09 | 2017-10-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Tangential motor, tangential rotor and its rotor core |
| CN111245117A (en) * | 2018-11-28 | 2020-06-05 | 尼得科索莱电机公司 | Electric motor with improved magnetic circuit for washing machine |
-
2017
- 2017-08-09 CN CN201720993804.5U patent/CN207039324U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240975A (en) * | 2017-08-09 | 2017-10-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Tangential motor, tangential rotor and its rotor core |
| CN107240975B (en) * | 2017-08-09 | 2023-05-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Tangential motor, tangential motor rotor and rotor core thereof |
| CN111245117A (en) * | 2018-11-28 | 2020-06-05 | 尼得科索莱电机公司 | Electric motor with improved magnetic circuit for washing machine |
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