CN108418327A - Rotor assembly and permanent magnet motor - Google Patents
Rotor assembly and permanent magnet motor Download PDFInfo
- Publication number
- CN108418327A CN108418327A CN201810474963.3A CN201810474963A CN108418327A CN 108418327 A CN108418327 A CN 108418327A CN 201810474963 A CN201810474963 A CN 201810474963A CN 108418327 A CN108418327 A CN 108418327A
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- rotor assembly
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- 229910000831 Steel Inorganic materials 0.000 claims description 31
- 239000010959 steel Substances 0.000 claims description 31
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- 230000004323 axial length Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000003139 buffering effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000012778 molding material Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/15—Sectional machines
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention provides a rotor assembly and a permanent magnet motor. The rotor assembly comprises a first rotor (1) and a second rotor (2), wherein the first rotor (1) is sleeved outside the second rotor (2), and the first rotor (1) and the second rotor (2) are fixedly connected into a whole through a buffer layer (3). According to the rotor assembly provided by the invention, the vibration or shaking noise of the motor in the rotating process can be effectively reduced, and the working performance of the motor is improved.
Description
Technical field
The invention belongs to motor device technical fields, and in particular to a kind of rotor assembly and magneto.
Background technology
Existing permanent magnet rotor component is mainly surface-mount type or plastic structure, is adapted to Low speed electric motor, and is directed to high speed
Motor uses embedded rotor structure, pastes magnet steel using coating technique, is identified without positioning when mounting magnetic steel, rotor operation process
Middle vibrations or dither noise are larger, and bonding strength is limited the embedded construction rotor of tradition easily between by two magnetic slots, reliable to motor
Property and the service life tool have a certain impact.
In addition because to lead between the stator and rotor air gap of motor that there are high-contents humorous for various aspects factor in motor operation course
Wave, harmonic wave can generate tangential, the radial vibration of certain frequency on rotor, and harmonic vibration can lead to that rotor is tangential, radial vibration.
And vibrating on direct-drive to armature spindle, will cause armature spindle and connects the external other component vibration of armature spindle, work as vibration
Frequency close to system intrinsic frequency when, just will produce electromagnetic noise.
Therefore, existing permanent magnet rotor component, in motor high speed rotation, vibration or dither noise are larger, are transferred to and turn
The noise of moving axis is also larger, affects the performance of motor.
Invention content
Therefore, the technical problem to be solved in the present invention is to provide a kind of rotor assembly and magneto, can effectively drop
Vibration in low motor rotation process or dither noise improve motor working performance.
To solve the above-mentioned problems, a kind of rotor assembly of present invention offer, including the first rotor and the second rotor, first turn
Sub-set is located at outside the second rotor, is connected to one by buffer layer between the first rotor and the second rotor.
Preferably, buffer layer is binder.
Preferably, air-gap is formed between the first rotor and the second rotor, buffer layer is filled in air-gap.
Preferably, the first rotor and the second rotor are completely separated by air-gap.
Preferably, the first rotor has axially extending bore, and multiple first diameters are provided at least one end inner wall of axially extending bore
To protrusion, multiple first radial protrusions are circumferentially arranged, and slot, the second rotor were formed between adjacent two the first radial protrusions
Periphery have the second radial protrusion, the second radial protrusion with mistake slot be correspondingly arranged, the second radial protrusion passed through slot and enters axis
After into through-hole, it is connected to one between the first rotor and the second rotor by filling buffer layer.
Preferably, the second radial protrusion through mistake slot enter in axially extending bore after relative to cross slot rotation, and with the first diameter
It is correspondingly arranged to protrusion.
Preferably, it is both provided with the first radial protrusion on the both ends inner wall of axially extending bore, be located at the same end first is radial
The radial tip of protrusion is located on the first circumference, and the both ends of bitrochanteric second radial protrusion are optical axis, and optical axis is limited the
In one circumference.
Preferably, the radial tip of the second radial protrusion is located on the second circumference, and the diameter of the second circumference is less than axial lead to
The diameter in hole；And/or the first radial protrusion of the first end positioned at axially extending bore has the first end face towards second end, position
There is the second end face towards first end in the first radial protrusion of the second end of axially extending bore, first end face and second end face it
Between axial distance be more than the second radial protrusion axial length.
Preferably, it is provided with magnetic slot on the first rotor, magnet steel is provided in magnetic slot, is glued between magnet steel and institute's magnetic slot
It connects.
Preferably, magnetic slot extends in a radial direction, and magnetic slot is provided with dovetail groove far from bitrochanteric one end.
Preferably, male-female engagement between the inner wall and magnet steel of magnetic slot.
Preferably, it is provided with positioning protrusion on the inner wall of magnetic slot, positioning groove, convex are provided on the outer wall of magnet steel
It rises and is caught in positioning groove；Or, being provided with positioning groove on the inner wall of magnetic slot, it is provided with positioning protrusion on the outer wall of magnet steel,
Positioning protrusion is caught in positioning groove.
Preferably, the outer circle of the first rotor includes the off-centre operation segmental arc being arranged alternately and center arc section, off-centre operation segmental arc
Center relative to the first rotor is eccentric, and center arc section is overlapped with the center of the first rotor.
Preferably, when being provided with magnetic slot on the first rotor, magnetic slot is arranged in a one-to-one correspondence with off-centre operation segmental arc.
Preferably, fabrication hole is provided on the first rotor, fabrication hole is axially through the first rotor.
Preferably, the first rotor is laminated by radial button point combination, and the second rotor is laminated by tangentially detaining a combination.
Preferably, the second rotor has central shaft hole.
According to another aspect of the present invention, a kind of magneto, including rotor assembly are provided, which is above-mentioned
Rotor assembly.
Rotor assembly provided by the invention, including the first rotor and the second rotor, the first rotor are set in outside the second rotor,
It is connected to one by buffer layer between the first rotor and the second rotor.The rotor assembly is divided into two parts, i.e., and first
Rotor and the second rotor are fixedly connected between two rotors by buffer layer, when motor works, can be provided by buffer layer
Buffering promotes rotor assembly and connects mechanical strength, reduces from the first rotor and be transferred to bitrochanteric vibration or shake, and then subtract
Few vibrational energy that rotation axis is transferred to from the second rotor, reduces the vibration in motor rotation process or dither noise, improves electricity
Machine working performance ensures motor operating reliability.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the first rotor of the rotor assembly of the embodiment of the present invention；
Fig. 2 is the dimensional structure diagram of the magnet steel of the rotor assembly of the embodiment of the present invention；
Fig. 3 is the decomposition texture schematic diagram of the rotor assembly removal buffer layer of the embodiment of the present invention；
Fig. 4 is the assembly structure diagram of the rotor assembly removal buffer layer of the embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the rotor assembly of the embodiment of the present invention；
Fig. 6 is the section view decomposition texture schematic diagram in the directions A-A of Fig. 5.
Reference numeral is expressed as：
1, the first rotor；2, the second rotor；3, buffer layer；4, axially extending bore；5, the first radial protrusion；6, slot is crossed；7,
Two radial protrusions；8, magnetic slot；9, magnet steel；10, dovetail groove；11, positioning protrusion；12, positioning groove；13, off-centre operation segmental arc；
14, center arc section；15, fabrication hole；16, radial button point；17, it tangentially detains a little；18, central shaft hole.
Specific implementation mode
In conjunction with referring to shown in Fig. 1 to Fig. 6, according to an embodiment of the invention, rotor assembly includes the first rotor 1 and second turn
Son 2, the first rotor 1 is set in outside the second rotor 2, is fixedly connected as by buffer layer 3 between the first rotor 1 and the second rotor 2
One.
The rotor assembly is divided into two parts, i.e. the first rotor 1 and the second rotor 2, passes through buffer layer 3 between two rotors
Be fixedly connected, when motor works, can by buffer layer 3 provide buffering, promoted rotor assembly connect mechanical strength, reduce from
The first rotor 1 is transferred to the vibration or shake of the second rotor 2, and then reduces the vibrational energy that rotation axis is transferred to from the second rotor 2
Amount reduces the vibration in motor rotation process or dither noise, improves motor working performance, ensures motor operating reliability.
Buffer layer 3 is binder.Preferably, binder is injection molding material or casting glue, can not only make the first rotor 1
And second have more good adhesive property between rotor 2, improves the integration knot between the first rotor 1 and the second rotor 2
Structure, and good cushioning effect can be formed between the first rotor 1 and the second rotor 2, it plays significantly more efficient buffering and subtracts
It shakes and Noise Reduction, enhances the mechanical coupling strength between the first rotor 1 and the second rotor 2, when ensureing that motor runs at high speed
Reliability and stability.
Air-gap is formed between the first rotor 1 and the second rotor 2, buffer layer 3 is filled in air-gap.By at first turn
Air-gap is formed between son 1 and the second rotor 2, sufficient space can be provided for the filling of binder so that binder can
Bonds well is formed to the first rotor 1 and the second rotor 2, improves the binding performance of the first rotor 1 and the second rotor 2, more added with
Effect ground ensures bond strength between the two.
Preferably, can be completely separated by air-gap between the first rotor 1 and the second rotor 2, to more efficiently
The first rotor 1 and the second rotor 2 is avoided to contact and impacted to the cushioning effect of buffer layer 3 so that the buffering of buffer layer 3 is made
With can maximize.
In the present embodiment, the first rotor 1 has axially extending bore 4, is provided at least one end inner wall of axially extending bore 4 more
A first radial protrusion 5, multiple first radial protrusions 5 are circumferentially arranged, and are formed between adjacent two the first radial protrusions 5
There is the second radial protrusion 7, the second radial protrusion 7 to be correspondingly arranged with slot 6 is crossed for the periphery of slot 6, the second rotor 2, the second radial convex
7 are played after crossing slot 6 and entering in axially extending bore 4, is fixedly connected between the first rotor 1 and the second rotor 2 by filling buffer layer 3
It is integrated.
It is respectively formed on radial protrusion, and the second radial protrusion 7 on the second rotor 2 in the first rotor 1 and the second rotor 2
It extend into the axially extending bore 4 of the first rotor 1, buffer layer 3 can carried out by the fit structure of radial protrusion and through-hole
When filling, filling limit is formed to the first rotor 1 and the second rotor 2 from multiple directions such as axial and circumferential so that the first rotor 1
And after the second air-gap between rotor 2 completes filling, it is more not susceptible to relative displacement, integrated structure is more firm, machine
Tool connection structure is stronger.
Preferably, the second radial protrusion 7 rotates after crossing slot 6 and entering in axially extending bore 4 relative to crossing slot 6, and with the
One radial protrusion 5 is correspondingly arranged.It after the second radial protrusion 7 is extend into axially extending bore 4, is rotated relative to slot 6 is crossed, thus with mistake
Slot 6 misplaces, and the second radial protrusion 7 is corresponding with the first radial protrusion 5 later, after the filling of completion buffer layer 3, by the
The mutual cooperation of two radial protrusions 7 and the first radial protrusion 5, can be from axial direction to the phase of the first rotor 1 and the second rotor 2
Position is further limited, meanwhile, by between the groove and the first radial protrusion 5 between the second radial protrusion 7
Slot 6 is crossed, enables to buffer layer 3 to form the limit of circumferential direction to the first rotor 1 and the second rotor 2 simultaneously so that first turn
The relative position of son 1 and the second rotor 2 is more firm, and connection structure is more reliable and more stable.
In the present embodiment, it is both provided with the first radial protrusion 5 on the both ends inner wall of axially extending bore 4, is located at the same end
The radial tip of first radial protrusion 5 is located on the first circumference, and the both ends of the second radial protrusion 7 of the second rotor 2 are optical axis, light
Axis limits in the first circumference.In this kind of structure, the symmetrical configuration at 4 both ends of axially extending bore, so that 1 He of the first rotor
Second rotor 2 obtains more good structural behaviour, and the structure for being formed by rotor assembly is more stablized, reliability higher.
Specifically, the first radial protrusion 5 at the both ends of the first rotor 1 is petal-shaped protrusion, and along the first rotor 1
The circumferential direction of axially extending bore 4 is uniformly distributed, and the second radial protrusion 7 of the second rotor 2 is located at the middle part of the second rotor 2, the second rotor 2
Both ends be cylindrical structure, the second radial protrusion 7 be petal-shaped protrusion, the cylindrical structure and first at 2 both ends of the second rotor
The petal-shaped male cooperation at 1 both ends of rotor, the axially extending bore 4 of second radial protrusion 7 and the first rotor 1 at 2 middle part of the second rotor
Middle section cooperation.
In other embodiments, the first radial protrusion 5 can also be only set on one end inner wall of axially extending bore 4,
Ring baffle is set on the other end inner wall of axially extending bore 4, wherein 7 both ends of the centre bore of ring baffle and the second radial protrusion
Optical axis matches.
The radial tip of second radial protrusion 7 is located on the second circumference, and the diameter of the second circumference is less than the straight of axially extending bore 4
Diameter can be formed so that when the second radial protrusion 7 is extend into axially extending bore 4 between the inner wall of axially extending bore 4
Air-gap ensures buffer layer 3 to first convenient for filling buffer layer 3 between the second radial protrusion 7 and the inner wall of axially extending bore 4
Rotor 1 and the second rotor 2 form effective cushioning effect.
There is the first end face towards second end positioned at the first radial protrusion 5 of the first end of axially extending bore 4, be located at axial
First radial protrusion 5 of the second end of through-hole 4 has the second end face towards first end, between first end face and second end face
Axial distance is more than the axial length of the second radial protrusion 7, can make the axial both ends of the second radial protrusion 7 with first turn
Air-gap is formed between son 1, convenient for being packed into enough buffer layers 3, to ensure buffer layer 3 to the first rotor 1 and the second rotor 2
Cushion performance.
It is provided with magnetic slot 8 on the first rotor 1, magnet steel 9 is provided in magnetic slot 8, is glued between magnet steel 9 and institute's magnetic slot 8
It connects.Air-gap can also be formed between magnet steel 9 and magnetic slot 8, and injection molding material either casting glue can be filled in air-gap, from
And mechanical coupling strength of the magnet steel 9 in magnetic slot 8 is promoted, ensure that mounting structure of the magnet steel 9 in magnetic slot 8 is reliable and stable,
Reduce the noise in rotor operation process and vibration.
The shape of magnet steel 9 can be selected as needed, can be rectangle, trapezoidal or other shapes, magnetic slot 8
Shape and the shape of magnet steel 9 match.
Magnetic slot 8 extends in a radial direction, and the one end of magnetic slot 8 far from the second rotor 2 is provided with dovetail groove 10.The dovetail
Slot 10 enables to form larger clearance between magnet steel 9 and magnetic slot 8, is conducive to the filling for carrying out injection molding material or pipe sizing material.
Preferably, male-female engagement between the inner wall of magnetic slot 8 and magnet steel 9.
Specifically, in an alternative embodiment, positioning protrusion 11 is provided on the inner wall of magnetic slot 8, magnet steel 9
Positioning groove 12 is provided on outer wall, positioning protrusion 11 is caught in positioning groove 12.
In another optional embodiment, it is provided with positioning groove 12 on the inner wall of magnetic slot 8, on the outer wall of magnet steel 9
It is provided with positioning protrusion 11, positioning protrusion 11 is caught in positioning groove 12.
In the present embodiment, it is provided with positioning protrusion 11 on the inner wall of close second rotor 2 of magnetic slot 8, the convex
11 are played as radial circular arc boss, positioning groove 12 is provided in the respective side walls of magnet steel 9, the shape of positioning groove 12 is radial
Arc groove.When mounted, positioning mark action, the radial direction on magnet steel can be played by positioning protrusion 11 and positioning groove 12
Arc groove is aligned iron core radial direction circular arc boss, and firm stabilization is installed in the two intercalation cooperation.
In the present embodiment, magnet steel 9 is radially arranged, and in other embodiments, magnet steel 9 can also be tangentially
Direction is arranged, or is arranged along other directions.
The outer circle of the first rotor 1 includes the off-centre operation segmental arc 13 being arranged alternately and center arc section 14, off-centre operation segmental arc 13
Center relative to the first rotor 1 is eccentric, and center arc section 14 is overlapped with the center of the first rotor 1.By eccentric arc in
The structure that heart circular arc is combined can obtain ideal sine wave magnetic field, suitable eccentricity and arc radius, can effectively change
Length is surveyed in kind breath.
When being provided with magnetic slot 8 on the first rotor 1, magnetic slot 8 is arranged in a one-to-one correspondence with off-centre operation segmental arc 13.
Fabrication hole 15 is provided on the first rotor 1, fabrication hole 15 is axially through the first rotor 1, it is possible to increase internal circulation
Area, intermediate iron core fabrication hole 15 are connected to filler, can promote filling out for magnet steel 9 and 1 internal voids filler of the first rotor
Degree of saturation is filled, fraction defective is reduced.
The first rotor 1 is laminated by radial 16 combination of button point, and the second rotor 2 is laminated by tangentially detaining a little 17 combinations.Wherein
The first rotor 1 is uniformly distributed circumferentially the radial button point 16 of rectangle, and shape and quantity are unlimited, 16 directions of radial button point radially with
Magnetic circuit is consistent, reduces the magnetic resistance that button point generates.The 18 place side of central shaft hole of second rotor 2 is equipped with tangential button point 17, can subtract
Few iron core enters the radial displacement generated when axis, avoids the change in size of magnetic slot 8 or packing structure impaired.
Second rotor 2 has central shaft hole 18, and the central shaft hole 18 is for installing rotation axis.
According to an embodiment of the invention, magneto includes rotor assembly, which is above-mentioned rotor assembly.
Those skilled in the art will readily recognize that under the premise of not conflicting, above-mentioned each advantageous manner can be free
Ground combination, superposition.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.With
Only it is the preferred embodiment of the present invention described in upper, it is noted that for those skilled in the art, not
Under the premise of being detached from the technology of the present invention principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as this
The protection domain of invention.
Claims (18)
1. a kind of rotor assembly, which is characterized in that including the first rotor (1) and the second rotor (2), the first rotor (1) set
It is located at second rotor (2) outside, connects by the way that buffer layer (3) is fixed between the first rotor (1) and second rotor (2)
It is connected in one.
2. rotor assembly according to claim 1, which is characterized in that the buffer layer (3) is binder.
3. rotor assembly according to claim 1, which is characterized in that the first rotor (1) and second rotor (2)
Between form air-gap, the buffer layer (3) is filled in the air-gap.
4. rotor assembly according to claim 3, which is characterized in that the first rotor (1) and second rotor (2)
It is completely separated by the air-gap.
5. rotor assembly according to any one of claim 1 to 4, which is characterized in that the first rotor (1) has axis
To through-hole (4), it is provided with multiple first radial protrusions (5) at least one end inner wall of the axially extending bore (4), multiple described
One radial protrusion (5) is circumferentially arranged, and forms slot (6) between adjacent two first radial protrusions (5), and described second
There is the second radial protrusion (7), second radial protrusion (7) to be correspondingly arranged with the slot (6) of crossing for the periphery of rotor (2), institute
The second radial protrusion (7) is stated to cross after slot (6) enters in the axially extending bore (4) by described, the first rotor (1) and
It is connected to one between second rotor (2) by filling buffer layer (3).
6. rotor assembly according to claim 5, which is characterized in that second radial protrusion (7) crosses slot by described
(6) it rotates, and corresponding with the first radial protrusion (5) sets relative to the slot (6) of crossing after entering in the axially extending bore (4)
It sets.
7. rotor assembly according to claim 5, which is characterized in that be all provided on the both ends inner wall of the axially extending bore (4)
It is equipped with first radial protrusion (5), the radial tip for being located at first radial protrusion (5) of the same end is located at the first circumference
On, the both ends of the second radial protrusion (7) of second rotor (2) are optical axis, and the optical axis limit is in the first circumference.
8. rotor assembly according to claim 7, which is characterized in that the radial tip position of second radial protrusion (7)
In on the second circumference, the diameter of second circumference is less than the diameter of the axially extending bore (4)；And/or it is logical positioned at the axial direction
The first radial protrusion (5) of the first end in hole (4) has the first end face towards second end, is located at the axially extending bore (4)
The first radial protrusion (5) of second end has the second end face towards first end, the axial direction between first end face and second end face
Distance is more than the axial length of second radial protrusion (7).
9. rotor assembly according to claim 1, which is characterized in that be provided with magnetic slot on the first rotor (1)
(8), it is provided with magnet steel (9) in the magnetic slot (8), it is be bonded between the magnet steel (9) and institute's magnetic slot (8).
10. rotor assembly according to claim 9, which is characterized in that the magnetic slot (8) extends in a radial direction, institute
It states the one end of magnetic slot (8) far from second rotor (2) and is provided with dovetail groove (10).
11. rotor assembly according to claim 9, which is characterized in that the inner wall of the magnetic slot (8) and the magnet steel
(9) male-female engagement between.
12. rotor assembly according to claim 11, which is characterized in that it is fixed to be provided on the inner wall of the magnetic slot (8)
Position is raised (11), is provided with positioning groove (12) on the outer wall of the magnet steel (9), the positioning protrusion (11) is caught in the positioning
In groove (12)；Or, positioning groove (12) is provided on the inner wall of the magnetic slot (8), on the outer wall of the magnet steel (9)
It is provided with positioning protrusion (11), the positioning protrusion (11) is caught in the positioning groove (12).
13. the rotor assembly according to any one of Claims 1-4,6 to 12, which is characterized in that the first rotor
(1) outer circle includes the off-centre operation segmental arc (13) being arranged alternately and center arc section (14), and the off-centre operation segmental arc (13) is opposite
Eccentric in the center of the first rotor (1), the center arc section (14) overlaps with the center of the first rotor (1).
14. rotor assembly according to claim 13, which is characterized in that when being provided with magnet steel on the first rotor (1)
When slot (8), the magnetic slot (8) is arranged in a one-to-one correspondence with the off-centre operation segmental arc (13).
15. the rotor assembly according to any one of Claims 1-4,6 to 12, which is characterized in that the first rotor
(1) fabrication hole (15) is provided on, the fabrication hole (15) is axially through the first rotor (1).
16. the rotor assembly according to any one of Claims 1-4,6 to 12, which is characterized in that the first rotor
(1) it is combined and is laminated by radial button point (16), second rotor (2) is laminated by tangentially detaining point (17) combination.
17. the rotor assembly according to any one of Claims 1-4,6 to 12, which is characterized in that second rotor
(2) there is central shaft hole (18).
18. a kind of magneto, including rotor assembly, which is characterized in that the rotor assembly is any in claim 1 to 17
Rotor assembly described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474963.3A CN108418327B (en) | 2018-05-17 | 2018-05-17 | Rotor assembly and permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474963.3A CN108418327B (en) | 2018-05-17 | 2018-05-17 | Rotor assembly and permanent magnet motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108418327A true CN108418327A (en) | 2018-08-17 |
| CN108418327B CN108418327B (en) | 2023-12-22 |
Family
ID=63139947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810474963.3A Active CN108418327B (en) | 2018-05-17 | 2018-05-17 | Rotor assembly and permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108418327B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111786484A (en) * | 2020-06-16 | 2020-10-16 | 淮安威灵电机制造有限公司 | Rotor assembly and motor with same |
| CN113489197A (en) * | 2021-08-03 | 2021-10-08 | 珠海格力电器股份有限公司 | Motor rotor, motor and air conditioner |
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| CN202524266U (en) * | 2012-02-28 | 2012-11-07 | 珠海格力电器股份有限公司 | Permanent magnet rotor and permanent magnet motor |
| CN203589954U (en) * | 2013-07-18 | 2014-05-07 | 珠海格力电器股份有限公司 | Permanent magnet rotor assembly and permanent magnet motor |
| US20170077791A1 (en) * | 2015-09-10 | 2017-03-16 | Johnson Electric S.A. | Single Phase Permanent Magnet Motor |
| CN206259766U (en) * | 2016-10-13 | 2017-06-16 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor structure, motor and compressor |
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| CN208112348U (en) * | 2018-05-17 | 2018-11-16 | 珠海凯邦电机制造有限公司 | Rotor assembly and permanent magnet motor |
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| CN202524266U (en) * | 2012-02-28 | 2012-11-07 | 珠海格力电器股份有限公司 | Permanent magnet rotor and permanent magnet motor |
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| US20170077791A1 (en) * | 2015-09-10 | 2017-03-16 | Johnson Electric S.A. | Single Phase Permanent Magnet Motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111786484A (en) * | 2020-06-16 | 2020-10-16 | 淮安威灵电机制造有限公司 | Rotor assembly and motor with same |
| CN113489197A (en) * | 2021-08-03 | 2021-10-08 | 珠海格力电器股份有限公司 | Motor rotor, motor and air conditioner |
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|---|---|
| CN108418327B (en) | 2023-12-22 |
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