CN207368762U - Motor - Google Patents
Motor Download PDFInfo
- Publication number
- CN207368762U CN207368762U CN201721503444.2U CN201721503444U CN207368762U CN 207368762 U CN207368762 U CN 207368762U CN 201721503444 U CN201721503444 U CN 201721503444U CN 207368762 U CN207368762 U CN 207368762U
- Authority
- CN
- China
- Prior art keywords
- arc
- stator
- axis
- section
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of motor, the motor includes：Stator and rotor, wherein, stator includes stator tooth, rotor includes rotor core, the inner surface section of at least one stator tooth includes central arc section curved laterally and two secondary segments of centrally located arc section both sides, each secondary segment does not fall on the basic circle of coupled central arc section, and the outer surface section of rotor core is non-circular or with the axis hole decentraction circle.Motor according to the present utility model, can effectively improve the vibration noise problem of motor.
Description
Technical field
Technical field of motors is the utility model is related to, more particularly, to a kind of motor.
Background technology
Permanent magnetic brushless in correlation technique, majority is fractional-slot concentratred winding, wherein, the inner surface section of stator tooth
Be formed as the arc section shape concentric with its centre bore, and the outer surface section of rotor is formed as and its axis hole at each magnetic pole
Concentric arc section shape.Thus, cause winding mmf harmonics content larger, cause the torque pulsation of motor larger, produce
Obvious vibration noise.
Utility model content
The utility model is intended at least solve one of technical problem existing in the prior art.For this reason, the utility model exists
In proposing a kind of motor, the vibrating noise of the motor is low.
Motor according to the present utility model, including：Stator, the stator include stator core and winding, the stator iron
Multiple stator tooths on core formed with centre bore and around the centre bore, it is fixed to limit between adjacent two stator tooths
Pilot trench, the winding are set around the stator slot, wherein, the inner surface section of at least one stator tooth includes outside lateral bending
Bent central arc section and two secondary segments positioned at the central arc section both sides, each secondary segment do not fall with its
On the basic circle of the connected central arc section；Rotor, the rotor are rotatably arranged in the centre bore and including rotor
Iron core and multiple magnets, multiple enclosed magnet slots on the rotor core formed with axis hole and around the axis hole, Duo Gesuo
State magnet respectively correspondingly inserting in multiple enclosed magnet slots, wherein, the outer surface section of the rotor core is non-
The circular or circle with the axis hole decentraction.
Motor according to the present utility model, can effectively improve the vibration noise problem of motor.
In certain embodiments, the center of circle of each central arc section overlaps or not with the axis of the centre bore
Overlap.
In certain embodiments, at least one secondary segment is straightway or arc segment or step line segment.
In certain embodiments, the geomery all same in the inner surface section of each stator tooth and in described
The axis annular array in heart hole.
In certain embodiments, the outer surface section of the rotor core includes what is arranged successively along the circumferential direction of the motor
Multiple arc sections, are connected directly per two adjacent arc sections, the center of circle and the axis hole of at least one arc section
Axis it is misaligned.
In certain embodiments, the center of circle of each arc section is misaligned with the axis of the axis hole.
In certain embodiments, the outer surface section of the rotor core includes what is arranged successively along the circumferential direction of the motor
Multiple arc sections, are indirectly connected per two adjacent arc sections by a changeover portion, and each changeover portion does not fall
In two arc sections adjacent thereto on the basic circle of any arc section.
In certain embodiments, the center of circle of each arc section is misaligned with the axis of the axis hole.
In certain embodiments, at least one changeover portion is straightway or arc segment or straightway and arc segment
With reference to.
In certain embodiments, axis of the center of circle of each arc section with the axis hole overlaps.
In certain embodiments, at least one changeover portion is straightway or arc segment or straightway and arc segment
With reference to.
In certain embodiments, the geomery all same of each changeover portion and on the axis annular of the axis hole
Array arrangement.
In certain embodiments, the size all same of each arc section and on the axis annular array of the axis hole
Arrangement.
In certain embodiments, the quantity of the arc section is identical with the quantity of the enclosed magnet slot, and multiple described
The radial direction face one by one of arc section and multiple enclosed magnet slots along the axis hole.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly by from following description
In become obvious, or recognized by the practice of the utility model.
Brief description of the drawings
Fig. 1 is the sectional view according to the motor of the utility model embodiment；
Fig. 2 is the sectional view according to the rotor of the utility model embodiment one；
Fig. 3 is the sectional view according to the rotor of the utility model embodiment two；
Fig. 4 is the sectional view according to the rotor of the utility model embodiment three；
Fig. 5 is the sectional view according to the rotor of the utility model embodiment four；
Fig. 6 is the sectional view according to the stator of the utility model one embodiment；
Fig. 7 is the sectional view according to the stator of the utility model another embodiment.
Reference numeral：
Motor 100；
Stator 1；
Stator core 11；Centre bore 101；Stator slot 102；Stator tooth 111；Stator yoke 112；
Inner surface S1；Central arc section S11；Secondary segment S12；
Rotor 2；
Rotor core 21；Axis hole 201；Enclosed magnet slot 202；Magnetic bridge 210；
Outer surface S2；Arc section S21；Changeover portion S22；
Magnet 22.
Embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the utility model.For
The disclosure of simplified the utility model, is hereinafter described the component and setting of specific examples.Certainly, they are only and show
Example, and purpose does not lie in limitation the utility model.In addition, the utility model can in different examples repeat reference numerals
And/or letter.This repetition is for purposes of simplicity and clarity, itself not indicate discussed various embodiments and/or set
Relation between putting.In addition, various specific techniques and the example of material that the utility model provides, but this area is common
Technical staff can be appreciated that the applicable property of other techniques and/or the use of other materials.
In the following, with reference to figure 1- Fig. 7 descriptions according to the motor 100 of the utility model embodiment.
As shown in Fig. 1-Fig. 7, according to the motor 100 of the utility model embodiment, including：Stator 1 and rotor 2.
As shown in Fig. 1-Fig. 7, stator 1 includes stator core 11 and winding (not shown), on stator core 11 formed with
Centre bore 101 and multiple stator tooths 111 around centre bore 101, limit stator slot between adjacent two stator tooths 111
102, winding is set around stator slot 102, and rotor 2 is rotatably arranged in centre bore 101 and including rotor core 21 and multiple magnetic
Body 22, multiple enclosed magnet slots 202 on rotor core 21 formed with axis hole 201 and around axis hole 201, multiple magnets 22 are distinguished
Accordingly inserting is in multiple enclosed magnet slots 202.Alternatively, motor 100 is magneto.
Specifically, stator core 11 and rotor core 21 can be stacked by multilayer sheet body forms, stator core 11
Including stator yoke 112 and multiple stator tooths 111, centre bore 101 is limited to the center of multiple stator tooths 111 and along motor 100
Axially through the axial both sides of the face of stator core 11, between stator slot 102 is limited to per two adjacent stator tooths 111 and edge
The axial both sides of the face axially through stator core 11 of motor 100, winding around being located on stator slot 102, insert vertically by rotor 2
The central axis entered into centre bore 101 and around motor 100 in centre bore 101 is rotatable, and rotor 2 includes 21 He of rotor core
Multiple magnets 22, axis hole 201 and multiple enclosed magnet slots 202 are along motor 100 axially through axial the two of rotor core 21
Side section, wherein, axis hole 201 is located at the center of rotor core 21 and for installing shaft (not shown), multiple enclosed magnetic
Body groove 202 is mounted on a magnet around axis hole 201 and for installing multiple magnets 22 in that is, each enclosed magnet slot 202
22。
Here it is possible to understand, " enclosed magnet slot " refers to：Magnet slot, the i.e. closed slot of closed type structure is configured to,
At this time, do not have notch on the outer surface S2 of rotor core 21.On the contrary, when magnet slot is open architecture, i.e. open slot, turn
There is notch on the outer surface S2 of sub- iron core 21.Thus illustrate, rotor core 21 as described herein is referred on the S2 of outer surface not
Has rotor core jaggy.
As shown in Fig. 1-Fig. 7, the inner surface S1 sections of at least one stator tooth 111 include central circular arc curved laterally
Section S11 and two secondary segment S12 of centrally located arc section S11 both sides, each secondary segment S12 do not fall in coupled
On the basic circle for entreating arc section S11, the outer surface S2 sections of rotor core 21 are non-circular or with 201 decentraction of axis hole circle
Shape.That is, on the arbitrary cross section (i.e. by perpendicular to the section that the plane of 100 axis of motor is intercepted) of motor 100,
The inner surface S1 of at least one stator tooth 111 includes a center arc section S11 and two secondary segment S12, wherein, central circular arc
Side (the i.e. interior table for 101 axis of close centre bore that section S11 is the inner surface S1 that arc segment and its center of circle be located at stator tooth 111
The inner side of face S1), the both ends of each center arc section S11 are connected directly with a secondary segment S12 respectively, and secondary segment S12 is not
Concyclic with coupled central arc section S11, the outer surface S2 of rotor core 21 is non-circular shape (as Figure 2-Figure 5)
Or the circle (i.e. the circle eccentric with axis hole 201, not shown) with 201 decentraction of axis hole.Here it is possible to understand,
" interior " as described herein refers to that its opposite side is " outer " close to the side of 100 central axis of motor, i.e., away from motor 100
The side of central axis.
Thus, according to the motor 100 of the utility model embodiment, by being carried out at the same time optimization to stator 1 and rotor 2, i.e.,
Stator 1 and rotor 2 are carried out at the same time to cut arc, and by the cooperation of the stator 1 after optimization and the rotor 2 after optimization, can be caused
Motor 100 has less air gap flux density harmonic wave, that is, reduces the harmonic content of air-gap field, so as to reduce the generation of this harmonic wave
Electro-magnetic exciting force, and then reduce torque pulsation, improve vibration and the noise problem of motor 100.
In the following, with reference to Fig. 6 and Fig. 7, the stator 1 according to some preferred embodiments of the utility model is described.
In some alternative embodiments of the utility model, the center of circle of each center arc section S11 with centre bore 101
Axis overlaps (as shown in Figure 7).Thus, convenient processing and manufacture, and can be better achieved and arc effect is cut to stator 1, make
Stator 1 preferably coordinates with above-mentioned rotor 2, preferably reduces winding mmf harmonics content, reduces the torque arteries and veins of motor 100
It is dynamic, improve the vibration noise problem of motor 100.
In the other alternative embodiment of the utility model, the center of circle of each center arc section S11 is and centre bore
101 axis is misaligned (as shown in Figure 6).Arc effect is cut to stator 1 thus, it is possible to be better achieved, makes stator 1 preferably
Coordinate with above-mentioned rotor 2, preferably reduce winding mmf harmonics content, reduce the torque pulsation of motor 100, improve motor
100 vibration noise problem.
Certainly, the utility model not limited to this, can also only have the center of circle of one or wherein several central arc section S11
Overlapped with the axis of centre bore 101, and the center of circle of other central arc section S11 and the axis of centre bore 101 are misaligned, so that
Better adapt to different actual requirements.
In some embodiments of the utility model, at least one secondary segment S12 is straightway (as shown in Figure 6) or arc
Line segment (not shown) or step line segment (step shape being made of broken line, as shown in Figure 7).Thus, convenient processing,
And can be better achieved and arc effect is cut to stator 1, stator 1 is preferably coordinated with above-mentioned rotor 2, preferably reduce winding
Mmf harmonics content, reduces the torque pulsation of motor 100, improves the vibration noise problem of motor 100.
Preferably, each secondary segment S12 is straightway.Thus, convenient processing and manufacture, and effect of vibration and noise reduction is good.
Or preferably, each secondary segment S12 is that (i.e. the center of circle is not heavy with the center of circle of coupled central arc section S11 for arc segment
The arc segment of conjunction).Thus, convenient processing and manufacture, and effect of vibration and noise reduction is good.Or preferably, each secondary segment S12 is
Step line segment.Thus, convenient processing and manufacture, and effect of vibration and noise reduction is good.
In some embodiments of the utility model, the geomery in the inner surface S1 sections of each stator tooth 111 is homogeneous
Together and on the axis annular array of centre bore 101.That is, the inner surface S1 sections of each stator tooth 111 by
Identical central arc section S11 and two secondary segment S12 compositions, wherein, two auxiliary being connected with a center arc section S11
S12 is on the substantially symmetrical about its central axis of central arc section S11 for section.Thus, convenient processing and manufacture, and can be better achieved to stator
1 cuts arc effect, stator 1 is preferably coordinated with above-mentioned rotor 2, preferably reduces winding mmf harmonics content, reduces electricity
The torque pulsation of machine 100, improves the vibration noise problem of motor 100.
Such as in the specific example shown in Fig. 6, the geomery all same in the inner surface S1 sections of each stator tooth 111
And on the axis annular array of centre bore 101, the inner surface S1 sections of each stator tooth 111 are by identical center circle
Segmental arc S11 and two secondary segment S12 compositions, wherein, the center of circle of each center arc section S11 with the axis of centre bore 101 not
Overlap and be located at the inner side of the inner surface S1 of stator tooth 111, each secondary segment S12 is configured to straightway.
Such as in the specific example shown in Fig. 7, the geomery all same in the inner surface S1 sections of each stator tooth 111
And on the axis annular array of centre bore 101, the inner surface S1 sections of each stator tooth 111 are by identical center circle
Segmental arc S11 and two secondary segment S12 compositions, wherein, the axis weight of the center of circle of each center arc section S11 with centre bore 101
Close, each secondary segment S12 is configured to step line segment.
In the following, with reference to Fig. 2-Fig. 5, the rotor 2 according to some preferred embodiments of the utility model is described.
Embodiment one：
As shown in Fig. 2, the outer surface S2 sections of rotor core 21 include the multiple circles arranged successively along the circumferential direction of motor 100
Segmental arc S21, is connected directly per two adjacent arc section S21, the center of circle of at least one arc section S21 and the axis of axis hole 201
It is misaligned.That is, the outer surface S2 sections of rotor core 21 are made of multiple arc section S21, multiple arc section S21 are successively
Join end to end.Arc effect is cut to rotor 2 thus, it is possible to be better achieved, rotor 2 is preferably coordinated with said stator 1, more
Reduce winding mmf harmonics content well, reduce the torque pulsation of motor 100, improve the vibration noise problem of motor 100.
Preferably, as shown in Fig. 2, the center of circle of each arc section S21 is misaligned with the axis of axis hole 201.Thus, it is possible to
It is better achieved and arc effect is cut to rotor 2, rotor 2 is preferably coordinated with said stator 1, preferably reduces winding magnetomotive force
Harmonic content, reduces the torque pulsation of motor 100, improves the vibration noise problem of motor 100, and can improve 2 turns of rotor
Dynamic stationarity.Certainly, the utility model not limited to this, can also only have the center of circle of one or wherein several arc section S21
It is misaligned with the axis of axis hole 201, and the center of circle of other arc section S21 is overlapped with the axis of axis hole 201, so that preferably suitable
Answer different actual requirements.
Preferably, as shown in Fig. 2, the quantity of arc section S21 is identical with the quantity of enclosed magnet slot 202, and multiple circular arcs
Radial direction one by one face of section S21 and the multiple enclosed magnet slots 202 along axis hole 201.Thus, magnetic bridge 210 can be formed in adjacent
Between two enclosed magnet slots 202 and the opposite two adjacent arc section S21 of adjacent with this two enclosed magnet slots 202
(formed with magnetic bridge 210 between the both ends of i.e. each arc section S21 and enclosed magnet slot 202), in this way, since magnetic bridge 210 is located at
The position that two arc section S21 are connected, so as to effectively reduce the area of magnetic bridge 210, and then reduces leakage field problem.
Preferably, as shown in Fig. 2, the size all same of each arc section S21 and on the axis annular array of axis hole 201
Arrangement.That is, the radius all same of each arc section S21, and the center of circle of each arc section S21 is respectively positioned on and axis hole 201
On a coaxial circle, and the center of circle of each arc section S21 is evenly spaced apart distribution on the circle.Thus, convenient processing and
Manufacture, and can be better achieved and arc effect is cut to rotor 2, rotor 2 is preferably coordinated with said stator 1, preferably subtract
Small winding mmf harmonics content, reduces the torque pulsation of motor 100, improves the vibration noise problem of motor 100, and can be with
Improve the stationarity that rotor 2 rotates.
Such as in the specific example shown in Fig. 2, the outer surface S2 sections of rotor core 21 are by several arc sections S21 groups
Into the center of circle of each arc section S21 is misaligned with the axis of axis hole 201.
Embodiment two：
The present embodiment two is substantially the same with above-described embodiment one, wherein identical component uses identical label, difference
It is in the adjacent arc section S21 in the present embodiment is not connected directly, but is indirectly connected by changeover portion S22.
As shown in figure 3, the outer surface S2 sections of rotor core 21 include the multiple circles arranged successively along the circumferential direction of motor 100
Segmental arc S21, is indirectly connected, each changeover portion S22 does not fall per two adjacent arc section S21 by a changeover portion S22
In two arc section S21 adjacent thereto on the basic circle of any arc section S21.That is, the outer surface S2 of rotor core 21
Section is made of multiple arc section S21 and multiple changeover portion S22, and multiple arc section S21 and multiple changeover portion S22 are staggeredly set one by one
Put and be sequentially connected end to end in turn, or and each arc section S21 be not formed as arc segment, or be formed as arc segment but not with
Any of its two connected arc section S21 are concyclic.Arc effect is cut to rotor 2 thus, it is possible to be better achieved, makes rotor
2 preferably coordinate with said stator 1, preferably reduce winding mmf harmonics content, reduce the torque pulsation of motor 100, change
The vibration noise problem of kind motor 100.
As shown in figure 3, the center of circle of each arc section S21 is misaligned with the axis of axis hole 201.Thus, it is possible to preferably
Realization cuts arc effect to rotor 2, rotor 2 is preferably coordinated with said stator 1, preferably reduces winding mmf harmonics and contains
Amount, reduces the torque pulsation of motor 100, improves the vibration noise problem of motor 100, and can improve the flat of the rotation of rotor 2
Stability.Certainly, the utility model not limited to this, can also only have the center of circle and the axis hole of one or wherein several arc section S21
201 axis is misaligned, and the center of circle of other arc section S21 is overlapped with the axis of axis hole 201, so as to better adapt to difference
Actual requirement.
As shown in figure 3, at least one changeover portion S22 is straightway.Thus, convenient processing and manufacture, and can be more preferable
Ground is realized cuts arc effect to rotor 2, rotor 2 is preferably coordinated with said stator 1, preferably reduces winding mmf harmonics
Content, reduces the torque pulsation of motor 100, improves the vibration noise problem of motor 100.Certainly, the utility model not limited to this,
At least one changeover portion S22 can also be the combination of arc segment or straightway and arc segment, so as to preferably meet different reality
It is required that.
Preferably, as shown in figure 3, each changeover portion S22 is straightway.Thus, more preferably convenient processing and manufacture, and
The vibration noise problem of motor 100 can preferably be improved.Certainly, the utility model not limited to this, can also only have one or
The wherein several changeover portion S22 of person are straightway, and others changeover portion S22 is not straightway, so as to better adapt to different realities
Border requires.
Preferably, as shown in figure 3, the geomery all same of each arc section S21 and on the axis annular of axis hole 201
Array arrangement.That is, the radius of each arc section S21, arc length all same, and the center of circle of each arc section S21 is respectively positioned on
On a circle coaxial with axis hole 201, the center of circle of multiple arc section S21 is evenly spaced apart distribution on the circle.Thus, it is convenient
Processing and manufacture, and can be better achieved and arc effect is cut to rotor 2, rotor 2 is preferably coordinated with said stator 1, more
Reduce winding mmf harmonics content well, reduce the torque pulsation of motor 100, improve the vibration noise problem of motor 100, and
And the stationarity of the rotation of rotor 2 can be improved.
Preferably, as shown in figure 3, the geomery all same of each changeover portion S22 and on the axis annular of axis hole 201
Array arrangement.That is, each changeover portion S22 is identical, and it is evenly spaced apart in the circumferential direction of axis hole 201 point
Cloth.Thus, convenient processing and manufacture, and can be better achieved and arc effect is cut to rotor 2, make rotor 2 preferably with it is above-mentioned
Stator 1 coordinates, and preferably reduces winding mmf harmonics content, reduces the torque pulsation of motor 100, improves shaking for motor 100
Moving noise problem, and the stationarity of the rotation of rotor 2 can be improved.
Preferably, as shown in figure 3, the quantity of arc section S21 is identical with the quantity of enclosed magnet slot 202, and multiple circular arcs
Radial direction one by one face of section S21 and the multiple enclosed magnet slots 202 along axis hole 201.Thus, magnetic bridge 210 can be formed in adjacent
(formed with magnetic bridge between i.e. each changeover portion S22 and enclosed magnet slot 202 between two enclosed magnet slots 202 and changeover portion S22
210), in this way, since magnetic bridge 210 is located at close to the position of two arc section S21 changeover portion S22 being connected, so as to effective
Ground reduces the area of magnetic bridge 210, and then reduces leakage field problem.
Such as in the specific example shown in Fig. 3, the outer surface S2 sections of rotor core 21 by several arc sections S21 and
Changeover portion S22 positioned at each arc section S21 both ends is formed, and the center of circle of each arc section S21 and the axis of axis hole 201 do not weigh
Close, each changeover portion S22 is a straightway.
Embodiment three：
The present embodiment three is substantially the same with above-described embodiment two, wherein identical component uses identical label, difference
It is in the center of circle of the adjacent arc section S21 in the present embodiment is overlapped with the axis of axis hole 201, and changeover portion S22 is not straight
Line segment.
As shown in figure 4, axis of the center of circle of each arc section S21 with axis hole 201 overlaps.It is thus, it is possible to preferably real
Arc effect now is cut to rotor 2, rotor 2 is preferably coordinated with said stator 1, preferably reduces winding mmf harmonics and contains
Amount, reduces the torque pulsation of motor 100, improves the vibration noise problem of motor 100, and can improve the flat of the rotation of rotor 2
Stability.Certainly, the utility model not limited to this, can also only have the center of circle and the axis hole of one or wherein several arc section S21
201 axis overlaps, and the center of circle of other arc section S21 and the axis of axis hole 201 are misaligned, so as to better adapt to difference
Actual requirement.
Preferably, as shown in figure 4, the geomery all same of each arc section S21 and on the axis annular of axis hole 201
Array arrangement.That is, each arc section S21 is identical, and it is evenly spaced apart in the circumferential direction of axis hole 201 point
Cloth.Thus, convenient processing and manufacture, and can be better achieved and arc effect is cut to rotor 2, make rotor 2 preferably with it is above-mentioned
Stator 1 coordinates, and preferably reduces winding mmf harmonics content, reduces the torque pulsation of motor 100, improves shaking for motor 100
Moving noise problem, and the stationarity of the rotation of rotor 2 can be improved.
Alternatively, as shown in figure 4, at least one changeover portion S22 is arc segment, since each changeover portion S22 does not fall
In two arc section S21 adjacent thereto on the basic circle of any arc section S21, therefore be formed as the changeover portion S22 of arc segment
The center of circle of the center of circle not with any of two arc section S21 adjacent thereto overlaps.Thus, convenient processing and manufacture, Er Qieke
Arc effect is cut to rotor 2 to be better achieved, rotor 2 is preferably coordinated with said stator 1, preferably reduces winding magnetic and moves
Gesture harmonic content, reduces the torque pulsation of motor 100, improves the vibration noise problem of motor 100.
Preferably, as shown in figure 4, the geomery all same of each changeover portion S22 and on the axis annular of axis hole 201
Array arrangement.That is, each changeover portion S22 is identical, and it is evenly spaced apart in the circumferential direction of axis hole 201 point
Cloth.Thus, convenient processing and manufacture, and can be better achieved and arc effect is cut to rotor 2, make rotor 2 preferably with it is above-mentioned
Stator 1 coordinates, and preferably reduces winding mmf harmonics content, reduces the torque pulsation of motor 100, improves shaking for motor 100
Moving noise problem, and the stationarity of the rotation of rotor 2 can be improved.
Preferably, as shown in figure 4, the quantity of arc section S21 is identical with the quantity of enclosed magnet slot 202, and multiple circular arcs
Radial direction one by one face of section S21 and the multiple enclosed magnet slots 202 along axis hole 201.Thus, magnetic bridge 210 can be formed in adjacent
(formed with magnetic bridge between i.e. each changeover portion S22 and enclosed magnet slot 202 between two enclosed magnet slots 202 and changeover portion S22
210), in this way, since magnetic bridge 210 is located at close to the position of two arc section S21 changeover portion S22 being connected, so as to effective
Ground reduces the area of magnetic bridge 210, and then reduces leakage field problem.
Such as in specific example shown in Fig. 4, the outer surface S2 sections of rotor core 21 by several arc sections S21 and
Changeover portion S22 positioned at each arc section S21 both ends is formed, and the center of circle of each arc section S21 and the axis of axis hole 201 overlap,
Each changeover portion S22 is a section camber line.
Example IV：
The present embodiment four is substantially the same with above-described embodiment three, wherein identical component uses identical label, difference
It is in the changeover portion S22 in the present embodiment is not arc segment.
As shown in figure 5, at least one changeover portion S22 is the combination of straightway and arc segment, that is to say, that at least one mistake
It is the multi-section-line being made of at least one straightway and at least one arc segment to cross section S22.Thus, convenient processing and manufacture, and
And can be better achieved and arc effect is cut to rotor 2, rotor 2 is preferably coordinated with said stator 1, preferably reduce winding
Mmf harmonics content, reduces the torque pulsation of motor 100, improves the vibration noise problem of motor 100.Certainly, this practicality is new
Type not limited to this, at least one changeover portion S22 can also be straightway, so as to preferably meet different actual requirements.
Preferably, as shown in figure 5, each changeover portion S22 is the combination of straightway and arc segment.Thus, it is more preferably convenient
Processing and manufacture, and can preferably improve the vibration noise problem of motor 100.Certainly, the utility model not limited to this, also
Can only have the one or wherein several changeover portion S22 combination for straightway and arc segment, and others changeover portion S22 is not
The combination of straightway and arc segment, so as to better adapt to different actual requirements.
Preferably, as shown in figure 5, the geomery all same of each changeover portion S22 and on the axis annular of axis hole 201
Array arrangement.That is, each changeover portion S22 is identical, and it is evenly spaced apart in the circumferential direction of axis hole 201 point
Cloth.Thus, convenient processing and manufacture, and can be better achieved and arc effect is cut to rotor 2, make rotor 2 preferably with it is above-mentioned
Stator 1 coordinates, and preferably reduces winding mmf harmonics content, reduces the torque pulsation of motor 100, improves shaking for motor 100
Moving noise problem, and the stationarity of the rotation of rotor 2 can be improved.
Such as in the specific example shown in Fig. 5, the outer surface S2 sections of rotor core 21 by several arc sections S21 and
Changeover portion S22 positioned at each arc section S21 both ends is formed, and the center of circle of each arc section S21 and the axis of axis hole 201 overlap,
Each changeover portion S22 is to form multi-section-line by straightway and arc segment.
In the description of the utility model, it is to be understood that term " " center ", " interior ", " outer ", " axial direction ", " radial direction ",
The orientation or position relationship of instructions such as " circumferential directions " are based on orientation shown in the drawings or position relationship, are for only for ease of description originally
Utility model and simplifying describes, rather than instruction or implies that signified device or element must have specific orientation, with specific
Azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature
Can be that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
Combine in an appropriate manner in any one or more of the embodiments or examples.
In addition, without conflicting with each other, those skilled in the art can be by the difference described in this specification
Embodiment or example and different embodiments or exemplary feature are combined and combine.
While there has been shown and described that the embodiment of the utility model, it will be understood by those skilled in the art that：
These embodiments can be carried out with a variety of changes, modification in the case where not departing from the principle and objective of the utility model, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (14)
- A kind of 1. motor, it is characterised in that including：Stator, the stator include stator core and winding, formed with centre bore and around the center on the stator core Multiple stator tooths in hole, limit stator slot between adjacent two stator tooths, and the winding is set around the stator slot, Wherein, the inner surface section of at least one stator tooth includes central arc section curved laterally and positioned at the center circle Two secondary segments of segmental arc both sides, each secondary segment do not fall on the basic circle of the coupled central arc section；Rotor, the rotor are rotatably arranged in the centre bore and including rotor core and multiple magnets, the rotor iron On core formed with axis hole and around the axis hole multiple enclosed magnet slots, multiple magnets respectively correspondingly inserting multiple In the enclosed magnet slot, wherein, the outer surface section of the rotor core is non-circular or with the axis hole decentraction It is circular.
- 2. motor according to claim 1, it is characterised in that the center of circle of each central arc section with the center The axis coincidence or misaligned in hole.
- 3. motor according to claim 1, it is characterised in that at least one secondary segment is straightway or arc segment, Or step line segment.
- 4. motor according to any one of claim 1-3, it is characterised in that the inner surface section of each stator tooth Geomery all same and on the axis annular array of the centre bore.
- 5. motor according to claim 1, it is characterised in that the outer surface section of the rotor core is included along the electricity Multiple arc sections that the circumferential direction of machine is arranged successively, are connected directly, at least one circular arc per two adjacent arc sections The center of circle and the axis of the axis hole of section are misaligned.
- 6. motor according to claim 5, it is characterised in that axis of the center of circle of each arc section with the axis hole Line is misaligned.
- 7. motor according to claim 1, it is characterised in that the outer surface section of the rotor core is included along the electricity Multiple arc sections that the circumferential direction of machine is arranged successively, are indirectly connected, often per two adjacent arc sections by a changeover portion A changeover portion does not fall in two arc sections adjacent thereto on the basic circle of any arc section.
- 8. motor according to claim 7, it is characterised in that axis of the center of circle of each arc section with the axis hole Line is misaligned.
- 9. motor according to claim 8, it is characterised in that at least one changeover portion is straightway or arc segment, Or the combination of straightway and arc segment.
- 10. motor according to claim 7, it is characterised in that the center of circle of each arc section with the axis hole Axis overlaps.
- 11. motor according to claim 10, it is characterised in that at least one changeover portion is straightway or camber line The combination of section or straightway and arc segment.
- 12. motor according to claim 11, it is characterised in that the geomery all same of each changeover portion and pass In the axis annular array of the axis hole.
- 13. according to the motor any one of claim 5-12, it is characterised in that the size of each arc section is homogeneous Together and on the axis annular array of the axis hole.
- 14. according to the motor any one of claim 5-12, it is characterised in that the quantity of the arc section is closed with described The quantity of formula magnet slot is identical, and multiple arc sections and multiple enclosed magnet slots along the axis hole radial direction one by one just It is right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721503444.2U CN207368762U (en) | 2017-11-09 | 2017-11-09 | Motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721503444.2U CN207368762U (en) | 2017-11-09 | 2017-11-09 | Motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207368762U true CN207368762U (en) | 2018-05-15 |
Family
ID=62344011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721503444.2U Active CN207368762U (en) | 2017-11-09 | 2017-11-09 | Motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207368762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112585843A (en) * | 2018-09-28 | 2021-03-30 | 大金工业株式会社 | Rotor, motor and compressor |
-
2017
- 2017-11-09 CN CN201721503444.2U patent/CN207368762U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112585843A (en) * | 2018-09-28 | 2021-03-30 | 大金工业株式会社 | Rotor, motor and compressor |
| US11936244B2 (en) | 2018-09-28 | 2024-03-19 | Daikin Industries, Ltd. | Rotor, motor, and compressor |
| CN112585843B (en) * | 2018-09-28 | 2024-04-12 | 大金工业株式会社 | Rotor, motor and compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10256708B2 (en) | Electric machine | |
| JP5713075B2 (en) | Rotor and rotating electrical machine | |
| JP2012161207A (en) | Permanent magnet type rotary electrical machinery | |
| CN105207382B (en) | A kind of rotor and the motor including the rotor | |
| CN207368769U (en) | Tangential motor and tangential rotor | |
| CN107681798A (en) | Motor | |
| CN207368762U (en) | Motor | |
| JP3672919B1 (en) | Permanent magnet type rotary motor | |
| WO2020194390A1 (en) | Rotating electric machine | |
| JP2014236577A (en) | Permanent magnetic rotary electric machine | |
| JP6390647B2 (en) | Permanent magnet rotating electric machine | |
| JP2001069701A (en) | Magnet motor | |
| CN103997141A (en) | Synchronous motor with high responsiveness | |
| JP2002300765A (en) | Permanent magnet motor | |
| CN207368849U (en) | Motor | |
| CN207368848U (en) | Motor | |
| KR20170050079A (en) | Motor With Notched Rotor For Cogging Torque Reduction | |
| CN207339437U (en) | Motor | |
| WO2017171037A1 (en) | Rotor and method for designing rotor | |
| CN109217600A (en) | For the oblique pole magnetic shoe of motor and with its rotor and motor | |
| CN207339438U (en) | Motor | |
| JP6358158B2 (en) | Rotating electric machine | |
| CN109742878A (en) | A kind of internal permanent magnet synchronous motor and its rotor structure | |
| CN107834718A (en) | Motor | |
| CN207368777U (en) | Motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |