CN108880031A - Rotor structure, motor rotor and motor - Google Patents
Rotor structure, motor rotor and motor Download PDFInfo
- Publication number
- CN108880031A CN108880031A CN201810528571.0A CN201810528571A CN108880031A CN 108880031 A CN108880031 A CN 108880031A CN 201810528571 A CN201810528571 A CN 201810528571A CN 108880031 A CN108880031 A CN 108880031A
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- China
- Prior art keywords
- iron core
- rotor
- magnetic shoe
- mounting groove
- rotor structure
- 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.)
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Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 75
- 230000004323 axial length Effects 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000010349 pulsation Effects 0.000 abstract description 4
- 230000003313 weakening effect Effects 0.000 abstract 1
- 210000000515 tooth Anatomy 0.000 description 34
- 230000006872 improvement Effects 0.000 description 13
- 229920006335 epoxy glue Polymers 0.000 description 11
- 238000001746 injection moulding Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 239000012778 molding material Substances 0.000 description 9
- 239000004033 plastic Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 7
- 239000003292 glue Substances 0.000 description 7
- 238000010276 construction Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920006332 epoxy adhesive Polymers 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 230000008111 motor development Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 210000003781 tooth socket Anatomy 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
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset magnets
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides a structural rotor, a motor rotor and a motor, relates to the technical field of direct-current brushless motors, and solves the technical problem that the rotor structure is high in production cost. The rotor structure comprises an iron core and magnetic tiles, wherein the iron core and/or the magnetic tiles are provided with inserting structures; the splicing structure can ensure that the magnetic shoe is arranged on the iron core in a splicing mode and is fixedly connected with the iron core in an interference fit mode; the mounting groove that grafting structure formed between two adjacent iron core tooth portions for setting up along iron core circumference, the magnetic shoe is pegged graft and is connected for interference fit in the mounting groove and between magnetic shoe and the mounting groove, and the lateral wall of mounting groove is for leaning out 1 oblique lateral wall to form big-end-up's mounting groove. The invention has the characteristics of low cost, reliable motor operation, uniform rotor air gap, weakening motor tooth space torque and torque pulsation, improving the noise performance of the motor, high utilization rate of a rotor magnetic field and high motor efficiency.
Description
Technical field
The present invention relates to DC brushless motor technical field, more particularly, to a kind of novel magnetic tile surface-mounted rotor structure,
Rotor and motor.
Background technique
The rotor that DC brushless motor uses at present has modeling magnet ring shape construction rotor, the embedded construction rotor of magnetic shoe and magnetic shoe
Surface-mount type construction rotor.Wherein there are two types of structure types again for existing magnetic shoe surface-mount type construction rotor, as shown in Fig. 2, the first magnetic
Watt surface-mounted rotor is that magnetic shoe is pasted on the circumferential surface of rotor core by epoxy glue；As shown in figure 3, second of magnetic shoe
Surface-mounted rotor is to be integrated magnetic shoe and rotor core by mold injection using injection molding material.
The first Surface Mount rotor mounted by Wear Characteristics of Epoxy Adhesive has the following defects：1, the epoxy glue market price is expensive, leads
Cause the rotor material higher cost；2, when product line worker operates, it cannot be guaranteed that the epoxy glue dosage of every magnetic shoe is all equal, meeting
The epoxy glue dosage for individual magnetic shoes occur there is a situation where on the high side or on the low side, and the rotor diameter being made into is caused to cannot be guaranteed, a
Other magnetic shoe can protrude or fall in, so that non-uniform air-gap when rotor and stator assemble, the tooth socket for increasing motor turns
Square and torque pulsation influence the noise performance of motor；3, using the mode of epoxy glue magnetic tile pasting, motor is under the high revolving speed of high temperature
When longtime running, magnetic shoe centrifugal force is larger, and epoxy glue, which can fail, causes magnetic shoe to fall off, and the stuck exception of motor occurs, reduces electricity
Machine reliability of operation.
Second of Surface Mount rotor for using injection molding material to pass through mold injection integral type, has the following defects：1, injection mold
Not general, each folds the magnetic shoe of high rotor core and each length, is required to open system according to the size of iron core and magnetic shoe
Injection mold, mold opening cost are expensive；2, Injection Mold Design and to open the time processed longer, can delay motor development progress and product volume
Produce the period.
The Surface Mount construction rotor of both the above structure type, magnetic shoe end and stator are apart from larger, and air reluctance is larger,
The field decay of corresponding part is serious, and air gap flux density is lower, is unfavorable for rotor field utilization, influences electric efficiency.
Summary of the invention
The purpose of the present invention is to provide a kind of novel magnetic tile surface-mounted rotor structure, rotor and the motor turn is set
The motor of son, the technical issues of to solve rotor structure high production cost existing in the prior art, by the way that connected structure is arranged,
Magnetic shoe is pluggable on iron core surface, without viscose glue water or uses injection molding material plastic, production cost is low.
To achieve the above object, the present invention provides following technical schemes：
A kind of rotor structure provided by the invention, including iron core and magnetic shoe, wherein：
Connected structure is provided on the iron core and/or the magnetic shoe；The connected structure can make the magnetic shoe by inserting
The mode connect be mounted on the iron core and with interference fit (or：Tight fit) mode and the iron core form fixed company
It connects.
Connected structure is set, and magnetic shoe can be directly plugged on iron core, and be interference fit or tight fit, so that magnetic shoe
Between iron core have enough bonding strengths, through the above structure design magnetic shoe can Surface Mount secured core surface, without using ring
Oxygen glue or injection molding plastic packaging, have the characteristics that at low cost.
As a further improvement of the present invention, the connected structure is the two neighboring iron core being circumferentially arranged along the iron core
The mounting groove formed between teeth portion, the magnetic shoe, which is plugged in the mounting groove and between the magnetic shoe and the mounting groove, was
It is full of mating connection.
By changing the core structure of existing Surface Mount rotor, the teeth portion structure of iron core outer circumference surface forms magnetic shoe mounting groove,
Magnetic shoe can Surface Mount be fixed on inside mounting groove, it is plastic without viscose glue water or using injection molding material.
As a further improvement of the present invention, the left side wall of the mounting groove and/or right side wall are with constant slope
Oblique side wall.
As a further improvement of the present invention, the oblique side wall is to be inclined outwardly structure.
As a further improvement of the present invention, the declining slope of the oblique side wall is 1 °.
It, can be oblique there are 1 ° on the inside of the mounting groove of iron core to guarantee that magnetic shoe can be more easily pressed into the mounting groove of iron core
Degree, when magnetic shoe is installed, initial stage is easy insertion, and the side wall of slot two sides can be mounted when magnetic shoe lower end is close to installation trench bottom
It tightly clamps, the design of this kind of structure is pasted without the use of epoxy glue, not only at low cost, but also since bonding strength well will not be
Occur magnetic shoe in rotary course to fall off and generate noise, thus the problems such as overcoming rotor noise performance difference and low reliability.
As a further improvement of the present invention, the iron core teeth portion is by from the outwardly extending root portion of the iron core and from institute
State the tooth crest composition that tooth root end surface is extended to form to two sides respectively.
As a further improvement of the present invention, the tooth crest cross-sectional shape be rectangle, it is sector, trapezoidal, rectangular or three
It is angular, and the tooth crest top surface is outer convex globoidal, the top surface of all tooth crest is joined together to form a concentric circles
Circumferential surface.
As a further improvement of the present invention, the installation groove shape is up-side down triangle, rectangular, inverted trapezoidal, square ring
Arc.
As a further improvement of the present invention, the distance between two neighboring described tooth crest is less than the two neighboring tooth
The distance between root.
As a further improvement of the present invention, the tooth crest length is 0.6-0.7 times of the magnetic shoe top length.
As a further improvement of the present invention, the iron core teeth portion axial length is identical as the iron core axial length, and
The iron core teeth portion axial length is 1/3-1/2 times of the magnetic shoe axial length.
As a further improvement of the present invention, the connected structure includes the slot along magnetic shoe length direction setting,
The slot specification is adapted with the iron core axial width, so that the magnetic shoe was formed by the slot and the iron core
It is full of the plug connection of cooperation.
As a further improvement of the present invention, the connected structure include multiple double wedges for being circumferentially arranged along the iron core and
Along spaced two grooves of the magnetic shoe width direction, plug division, phase are respectively formed at left and right sides of two grooves
The inserting groove for plug division described in grafting is formed between adjacent two double wedges, the plug division interference fit is plugged on described
Being fixedly connected between the magnetic shoe and the iron core is realized in inserting groove.
A kind of rotor provided by the invention is set at the core center including the rotor structure and rotary shaft
It is equipped with the axis hole passed through for the rotary shaft.
A kind of motor provided by the invention is equipped with stator hole, institute including stator and the rotor in the stator
Rotor is stated to be spindle rotationally arranged in the stator hole.
As a further improvement of the present invention, the top of the rotor circumferencial direction is between the stator hole inner wall
It is spaced identical.
The present invention has the advantages that compared with prior art：The grafting knot that the present invention passes through setting interference fit
Structure is wrapped so that magnetic shoe can easily be achieved a fixed connection by inserting mode and iron core without using glue or injection molding material
The mode of modeling realizes connection, not only high production efficiency, easy to process, at low cost, and automated production may be implemented.
The preferred embodiment of the present invention also has the advantages that：
1, by designing a kind of new rotor core structure, the teeth portion of rotor core forms equally distributed magnetic shoe installation
Slot, magnetic shoe can Surface Mount be fixed on inside mounting groove, pasted without using epoxy glue or plastic, at low cost using injection molding material；Together
When ensure that rotor diameter dimensional accuracy, air gap is uniform, weakens motor cogging torque and torque pulsation, promotes motor noise
Energy；The teeth portion structure of rotor core can firmly clasp magnetic shoe, it is big there is no magnetic shoe centrifugal force and the case where fall off, improve motor
Reliability of operation.
2, Surface Mount rotor of the invention, rotor core can be laminated according to the folded height of actual use, straight forming
Corresponding magnetic shoe mounting groove is installed for Surface Mount magnetic shoe, is not necessarily to new mold, is saved die cost, is shortened product volume production week
Phase.
3, Surface Mount rotor of the invention, rotor core teeth portion part can play magnetic shoe end magnetic field magnetic conduction effect, shorten magnetic
Watt end increases air gap flux density, improves the utilization rate of rotor field, to improve electric efficiency at a distance from stator.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is existing rotor core and magnetic shoe structure schematic diagram；
Fig. 2 is the schematic diagram that existing Surface Mount rotor passes through epoxy glue connection；
Fig. 3 is the schematic diagram of existing plastic rotor；
Fig. 4 is existing plastic rotor subdivision schematic diagram；
Fig. 5 is the structural schematic diagram of iron core in rotor structure of the present invention；
Fig. 6 is the schematic perspective view of iron core in rotor structure of the present invention；
Fig. 7 be in Fig. 5 BB to cross-sectional view；
Fig. 8 is sectional view when iron core and magnetic shoe are assembled together in rotor structure of the present invention；
Fig. 9 is schematic perspective view when iron core and magnetic shoe are assembled together in rotor structure of the present invention；
Figure 10 is the structural schematic diagram of rotor of the present invention；
Figure 11 is rotor of the present invention and stator assembling schematic diagram；
Figure 12 is the structural schematic diagram of second of embodiment of connected structure in rotor structure of the present invention；
Figure 13 is the structural schematic diagram of the third embodiment of connected structure in rotor structure of the present invention.
1, iron core in figure；11, root portion；12, tooth crest；13, axis hole；2, magnetic shoe；3, epoxy adhesive layer；31, mounting groove；
32, slot；33, double wedge；331, inserting groove；34, groove；341, plug division；4, it is molded the bed of material；5, rotary shaft；6, stator.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
As Figure 1-Figure 4, magnetic shoe is to pass through ring in the magnetic shoe surface-mount type construction rotor that DC brushless motor uses at present
Oxygen glue or the mode for using injection molding material, magnetic shoe and iron core are linked together, both connection types all have many deficiencies.
As shown in Figure 5 and Figure 6, the present invention provides a kind of rotor structure, including iron core 1 and magnetic shoe 2, iron core 1 and/or
Connected structure is provided on magnetic shoe 2；Connected structure can be such that magnetic shoe 2 is mounted on iron core 1 by way of grafting and be matched with interference
Close (or：Tight fit) mode form a fixed connection with iron core 1.Connected structure is set, and magnetic shoe 2 can directly be plugged on iron core
It on 1, and is interference fit or tight fit, so that there is enough bonding strengths, through the above structure between magnetic shoe 2 and iron core 1
Design magnetic shoe 2 can 1 surface of Surface Mount secured core, without using epoxy glue paste or be molded plastic packaging, have the characteristics that at low cost.
As an alternative embodiment, as shown in Figure 7 and Figure 8, being provided with multiple iron core teeths on 1 periphery of iron core
Portion, connected structure are the mounting groove 31 formed between the two neighboring iron core teeth portion that iron core 1 is circumferentially arranged, and magnetic shoe 2 is plugged on
It is interference fit connection in mounting groove 31 and between magnetic shoe 2 and mounting groove 31.By changing the core structure of existing Surface Mount rotor,
The teeth portion structure of 1 outer circumference surface of iron core forms 2 mounting groove 31 of magnetic shoe, magnetic shoe 2 can Surface Mount be fixed on 31 the inside of mounting groove, without viscous
Glue is plastic using injection molding material.
Further, in order to improve bonding strength, guarantee the reliable and stable of motor operation, the left side wall of mounting groove 31 and/
Or right side wall is the oblique side wall with constant slope.Preferably, oblique side wall is to be inclined outwardly structure.The inclination of especially oblique side wall
It is optimal that gradient, which is 1 °,.To guarantee that magnetic shoe 2 can be more easily pressed into the mounting groove 31 of iron core 1,31 inside of mounting groove of iron core 1
There are 1 ° of gradients for meeting, and when magnetic shoe 2 is installed, initial stage is easy insertion, can quilt when 2 lower end of magnetic shoe is close to 31 bottom of mounting groove
The side wall of 31 two sides of mounting groove is tightly clamped, this kind of structure design is pasted without the use of epoxy glue, not only at low cost, Er Qieyou
Will not occur magnetic shoe 2 in rotary course well in bonding strength to fall off and generate noise, so that it is poor to overcome rotor noise performance
The problems such as low with reliability.
In the preferred embodiment, iron core teeth portion is by from the outwardly extending root portion 11 of iron core 1 and from 11 end face of root portion
The tooth crest 12 extended to form respectively to two sides forms.The work that magnetic shoe 12 is limited and fixed is also functioned to by tooth crest 12
With further raising bonding strength, 12 shape of tooth crest are not necessarily the shape in attached drawing, 12 cross-sectional shape of tooth crest
It can be rectangle, sector, trapezoidal, rectangular or triangle, need according to the actual situation and save material etc. considers to determine,
Further, 12 top surface of tooth crest is outer convex globoidal, and the top surface of all tooth crest 12 is joined together to form a concentric circumferences
Face so that apex rotor apart from stator 6 apart from all the same, form uniform air gap, while ensure that rotor diameter size
Precision, air gap is uniform, weakens motor cogging torque and torque pulsation, promotes motor noise performance.
In order to adapt to product applicability, 31 shape of mounting groove can be up-side down triangle, rectangular, inverted trapezoidal, square ring arc
Shape selects according to the actual situation.
As shown in figure 9, the distance between two neighboring tooth crest 12 is less than adjacent two in the first preferred embodiment of the application
The distance between a root portion 11.And 12 length of tooth crest is 0.6-0.7 times of 2 top length of magnetic shoe.Iron core teeth portion is axially long
Degree is identical as 1 axial length of iron core, and iron core teeth portion axial length is 1/3-1/2 times of 2 axial length of magnetic shoe.
Second of optional embodiment of the application, as shown in figure 12, connected structure include being arranged along 2 length direction of magnetic shoe
Slot 32,32 specification of slot is adapted with 1 axial width of iron core, matches so that magnetic shoe 2 forms interference by slot 32 and iron core 1
The plug connection of conjunction.
The third optional embodiment of the application, as shown in figure 13, connected structure include circumferentially be arranged along iron core 1 it is more
A double wedge 33 and along spaced two grooves 34 of 2 width direction of magnetic shoe, the left and right sides of two grooves 34 is respectively formed slotting
Socket part 341, forms the inserting groove 331 for being used for grafting plug division 341 between two neighboring double wedge 33, and plug division 341 is interference fitted
It is plugged in inserting groove 331 and realizes being fixedly connected between magnetic shoe 2 and iron core 1.
As shown in Figure 10, a kind of rotor provided by the invention, including rotor structure and rotary shaft 5,1 center of iron core
Place is provided with the axis hole 5 passed through for rotary shaft 5.
As shown in figure 11, a kind of motor provided by the invention, the rotor including 6 sum of stator, stator 6 is interior to be equipped with stator
Hole, rotor are spindle rotationally arranged in stator hole.Wherein, the top of rotor circumferencial direction is between stator hole inner wall
It is spaced identical.
The connected structure that the present invention is interference fitted by setting, so that magnetic shoe 2 can easily pass through inserting mode and iron core 1
It achieves a fixed connection, carries out plastic mode without using glue or injection molding material and realize connection, not only high production efficiency, processing side
Just, at low cost, automated production may be implemented.
Embodiment 1：
1, according to design requirement, corresponding rotor core 1 and magnetic shoe 2, the installation that wherein rotor core teeth portion is formed are designed
31 Assurance of Size of slot is consistent with 2 outer profile size of magnetic shoe, meets assembly demand；
2, generally, as shown in fig. 7, turning to guarantee that magnetic shoe 2 can be more easily pressed into the mounting groove 31 of rotor core 1
It can be arranged to oblique side wall on the inside of the mounting groove 31 of sub- iron core 1, A1 angle is that 91 degree of i.e. 31 side walls of mounting groove have with vertical direction
1 ° of gradient；
3, generally, as shown in figure 8, buckling intensity for guarantee rotor core teeth portion and magnetic shoe 2, rotor core teeth portion is wide
L2=(0.6~0.7) * L1 is spent, wherein L1 is 2 width of magnetic shoe；
4, generally, for the air gap for more making full use of stator 6 and rotor engagement to leave, rotor is made full use of to form magnetic
, rotor core teeth portion magnetic conduction effect is maximized, rotor core outer diameter is equal to magnetic shoe Surface Mount after rotor core when design
Outer diameter；
5, rotor enters rotary shaft；
6, it rotor after axis will be entered will be put into magnet charger to magnetize, and finally complete rotor general assembly.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (16)
1. a kind of rotor structure, it is characterised in that：Including iron core (1) and magnetic shoe (2), wherein：
Connected structure is provided on the iron core (1) and/or the magnetic shoe (2)；The connected structure can make the magnetic shoe (2) logical
The mode for crossing grafting, which is mounted on the iron core (1) and in an interference fit with the iron core (1), to form a fixed connection.
2. rotor structure according to claim 1, it is characterised in that：The connected structure is circumferential along the iron core (1)
The mounting groove (31) formed between the two neighboring iron core teeth portion being arranged, the magnetic shoe (2) are plugged in the mounting groove (31)
And it is connected between the magnetic shoe (2) and the mounting groove (31) for interference fit.
3. rotor structure according to claim 2, it is characterised in that：The left side wall of the mounting groove (31) and/or right side
Wall is the oblique side wall with constant slope.
4. rotor structure according to claim 3, it is characterised in that：The oblique side wall is to be inclined outwardly structure.
5. rotor structure according to claim 3, it is characterised in that：The declining slope of the oblique side wall is 1 °.
6. rotor structure according to claim 2, it is characterised in that：The iron core teeth portion is by outside from the iron core (1)
The root portion (11) of extension and the tooth crest (12) extended to form respectively to two sides from the root portion (11) end face composition.
7. rotor structure according to claim 6, it is characterised in that：Tooth crest (12) cross-sectional shape be rectangle,
Fan-shaped, trapezoidal, rectangular or triangle, and the tooth crest (12) top surface is outer convex globoidal, all tooth crest (12)
Top surface is joined together to form a concentric periphery.
8. rotor structure according to claim 2, it is characterised in that：Mounting groove (31) shape is up-side down triangle, side
Shape, inverted trapezoidal, square ring arc.
9. rotor structure according to claim 6, it is characterised in that：The distance between two neighboring described tooth crest (12)
Less than the distance between two neighboring described root portion (11).
10. rotor structure according to claim 6, it is characterised in that：Tooth crest (12) length is the magnetic shoe (2)
0.6-0.7 times of top length.
11. rotor structure according to claim 6, it is characterised in that：The iron core teeth portion axial length and the iron core
(1) axial length is identical, and the iron core teeth portion axial length is 1/3-1/2 times of the magnetic shoe (2) axial length.
12. rotor structure according to claim 1, it is characterised in that：The connected structure includes long along the magnetic shoe (2)
The slot (32) of direction setting is spent, slot (32) specification is adapted with the iron core (1) axial width, so that the magnetic shoe
(2) plug connection of interference fit is formed by the slot (32) and the iron core (1).
13. rotor structure according to claim 1, it is characterised in that：The connected structure includes along the iron core (1) week
To multiple double wedges (33) of setting and along spaced two grooves (34) of the magnetic shoe (2) width direction, two described recessed
It is respectively formed at left and right sides of slot (34) plug division (341), is formed between the two neighboring double wedge (33) for described in grafting
The inserting groove (331) of plug division (341), plug division (341) interference fit, which is plugged in the inserting groove (331), realizes institute
State being fixedly connected between magnetic shoe (2) and the iron core (1).
14. a kind of rotor, it is characterised in that：Including the rotor structure and rotary shaft as described in claim 1-13 is any
(5), the axis hole (13) passed through for the rotary shaft (5) is provided at iron core (1) center.
15. a kind of motor, it is characterised in that：Including stator (6) and rotor as claimed in claim 14, the stator
(6) stator hole is equipped in, the rotor is spindle rotationally arranged in the stator hole.
16. motor according to claim 15, it is characterised in that：The top of the rotor circumferencial direction is to described fixed
It is spaced between sub-aperture inner wall identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810528571.0A CN108880031B (en) | 2018-05-29 | 2018-05-29 | Rotor structure, motor rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810528571.0A CN108880031B (en) | 2018-05-29 | 2018-05-29 | Rotor structure, motor rotor and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108880031A true CN108880031A (en) | 2018-11-23 |
| CN108880031B CN108880031B (en) | 2020-07-24 |
Family
ID=64335801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810528571.0A Active CN108880031B (en) | 2018-05-29 | 2018-05-29 | Rotor structure, motor rotor and motor |
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| Country | Link |
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| CN (1) | CN108880031B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620461A (en) * | 2019-10-16 | 2019-12-27 | 珠海格力电器股份有限公司 | Pole-changing rotor structure and motor |
| CN113193669A (en) * | 2021-04-30 | 2021-07-30 | 深圳市唯川科技有限公司 | Stator assembly and inner rotor motor |
| CN113315281A (en) * | 2020-02-27 | 2021-08-27 | 盾安环境技术有限公司 | Rotor punching sheet, rotor assembly and motor |
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| CN101425709A (en) * | 2008-08-11 | 2009-05-06 | 隆鑫工业有限公司 | Permanent magnet generator rotor |
| CN202190149U (en) * | 2011-08-22 | 2012-04-11 | 周拥军 | Rotor punching sheet of brushless motor |
| CN105226858A (en) * | 2015-10-26 | 2016-01-06 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of rotor and there is its motor |
| CN205178811U (en) * | 2015-12-04 | 2016-04-20 | 滨州学院 | Permanent magnet synchronous motor |
| CN208299560U (en) * | 2018-05-29 | 2018-12-28 | 珠海格力电器股份有限公司 | Rotor structure, motor rotor and motor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110620461A (en) * | 2019-10-16 | 2019-12-27 | 珠海格力电器股份有限公司 | Pole-changing rotor structure and motor |
| CN113315281A (en) * | 2020-02-27 | 2021-08-27 | 盾安环境技术有限公司 | Rotor punching sheet, rotor assembly and motor |
| CN113315281B (en) * | 2020-02-27 | 2022-11-08 | 盾安环境技术有限公司 | Rotor punching sheet, rotor assembly and motor |
| CN113193669A (en) * | 2021-04-30 | 2021-07-30 | 深圳市唯川科技有限公司 | Stator assembly and inner rotor motor |
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