CN109193978A - A kind of tooth yoke separation stator structure suitable for axial flux permanent magnet motor - Google Patents
A kind of tooth yoke separation stator structure suitable for axial flux permanent magnet motor Download PDFInfo
- Publication number
- CN109193978A CN109193978A CN201811045435.2A CN201811045435A CN109193978A CN 109193978 A CN109193978 A CN 109193978A CN 201811045435 A CN201811045435 A CN 201811045435A CN 109193978 A CN109193978 A CN 109193978A
- Authority
- CN
- China
- Prior art keywords
- stator
- yoke
- teeth
- permanent magnet
- magnet 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.)
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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
- H02K1/12—Stationary parts of the magnetic circuit
-
- 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
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
Abstract
The invention discloses a kind of tooth yokes suitable for axial flux permanent magnet motor to separate stator structure, belong to axial flux permanent magnet motor field, it is preferably provided with the stator yoke in " gear-like " and is in the stator teeth of " wedge structure ", it by the corresponding assembly of multiple stator teeths, is fixed in stator yoke, to form the stator structure for being suitable for axial flux permanent magnet motor.Tooth yoke suitable for axial flux permanent magnet motor of the invention separates stator structure, the molding of its stator teeth and stator yoke is simple, formed precision and forming efficiency are higher, the moulding process of existing stator structure can effectively be simplified, promote the molding precision of stator structure, and the assembly of stator teeth and stator yoke is convenient, the shaping efficiency of stator structure can be greatly promoted, reduce the processing cost of axial flux permanent magnet motor stator structure, the application for pushing axial flux permanent magnet motor, has good promotion and application value.
Description
Technical field
The invention belongs to axial flux permanent magnet motor fields, and in particular to a kind of tooth suitable for axial flux permanent magnet motor
Yoke separates stator structure.
Background technique
With the continuous development of economy and society with the increasingly increase of energy consumption, permanent magnet excitation is used to replace electrical excitation to save
It saves energy consumption and has become global common recognition, thus promote the fast development of magneto.
For axial flux permanent magnet motor as a kind of typical magneto, air-gap field is axial distribution, stator, rotor
Usually tray type structure often has biggish radius, lesser axial length, higher power density, compact-sized and machine
The features such as electrical time constant is small, and conveniently it is designed to multi-disc type structure, the promotion of motor torque easy to accomplish and power density, because
And it is widely used in the driving motor of facilities for transport and communication and servo-system.
In the prior art, the stator of axial flux permanent magnet motor is usually to utilize silicon-steel sheet coiled around forming, and is usually adopted
It is processed with the manufacturing method of jet-bedding and winding, although this processing method can realize the processing of stator to a certain extent,
Higher cost, the technique of above-mentioned processing method is more complex, precision it is difficult to ensure that, increase being applied to for axial flux permanent magnet motor
This, limits the popularization and application of axial flux permanent magnet motor；Therefore, it reduces the cost of magnetic flow permanent magnet motor stator, simplify magnetic flux
The manufacturing process of permanent magnet motor stator is for pushing the development of axial flux permanent magnet motor to seem particularly significant with application.
Summary of the invention
One or more of aiming at the above defects or improvement requirements of the prior art, the present invention provides one kind to be applicable in
Stator structure is separated, it can be achieved that quick, the accurate assembly of stator structure forms in the tooth yoke of axial flux permanent magnet motor, and it is fixed to simplify
The moulding process of minor structure reduces the processing cost of stator structure.
To achieve the above object, the present invention provides a kind of tooth yoke separation stator knot suitable for axial flux permanent magnet motor
Structure, which is characterized in that the stator structure include stator yoke and it is multiple correspond to be assembled on the stator yoke periphery determine
Sub- teeth portion；Wherein,
The stator yoke is in " gear-like " structure, and peripheral ring is spaced apart upwards is equipped with multiple teeth portion mounting grooves, and
Form the yoke portion protrusion of one fixed width between the two teeth portion mounting grooves, the notch of the teeth portion mounting groove is by outer and interior successively contract
It is small, and the two sides of the yoke portion protrusion respectively correspond the stator teeth and are provided in long strip and concordant yoke portion protruding end
First convex block in face；
The stator teeth corresponds to teeth portion mounting groove setting, is the trapezoidal wedge structure in cross section, and one
The is provided with to the first convex block for respectively corresponding teeth portion mounting groove two sides on the mutually bottom of angled wedge shaped side
Two convex blocks, second convex block can be corresponding with top surface and side after the stator teeth is correspondingly embedded in the teeth portion mounting groove
The bottom surface of first convex block and the side of the yoke portion protrusion are abutted, respectively to realize the stator teeth in corresponding teeth portion peace
Fixation in tankage；Then multiple stator teeths can be sequentially embedded in corresponding teeth portion mounting groove and fix, to be formed
Stator structure suitable for axial flux permanent magnet motor.
As a further improvement of the present invention, certain depth is offered at the top of the stator teeth subtracts square slot, to subtract
The cogging torque of few motor.
As a further improvement of the present invention, the center of top for subtracting square slot and being provided with the stator teeth, and it is described
The structure for subtracting square slot two sides subtracts the axisymmetrical of square slot with this.
As a further improvement of the present invention, it is respectively arranged at the top of two wedge shaped sides and flushes in the stator tooth
The bulge-structure of portion top surface, and make the vertical cross-section of the stator teeth in the shape of an " I ".
As a further improvement of the present invention, between the bulge-structure at the top of adjacent two stator teeths between be separated with it is certain
Distance, and the stator teeth notching that can accommodate coil is formed between two stator teeths.
As a further improvement of the present invention, the angle of two wedge shaped sides is 15 °, 20 °, 30 ° or 36 °, into one
Preferably 30 ° of step.
As a further improvement of the present invention, the teeth portion mounting groove in the stator yoke is 12, correspondingly, described fixed
The setting quantity of sub- teeth portion is 12.
As a further improvement of the present invention, the stator teeth and the stator yoke by bonding agent it is Nian Jie consolidate or
Person is consolidated by way of interference fit.
As a further improvement of the present invention, the stator yoke is laminated by the silicon steel sheet of two kinds of geomeries along axial direction
It forms.
As a further improvement of the present invention, the stator teeth is pressed and molded by soft-magnetic composite material.
Above-mentioned improved technology feature can be combined with each other as long as they do not conflict with each other.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, have below beneficial to effect
Fruit:
(1) the tooth yoke suitable for axial flux permanent magnet motor of the invention separates stator structure, is preferably provided in " gear
The stator yoke of shape " and be in " wedge structure " stator teeth, by being preferably provided with the structure and size of stator teeth, so that more
A stator teeth can correspond to assembly, be fixed in stator yoke, to form the stator knot for being suitable for axial flux permanent magnet motor
Structure, and the stator teeth notching of accommodating coil can be correspondingly formed between two stator teeths adjacent on stator structure, realize stator structure
Quick-assembling molding, the formed precision and shaping efficiency of stator structure are high, compared to existing stator structure moulding process and
Speech, enormously simplify the moulding process of stator structure, improve molding precision and efficiency, ensure that stator structure it is efficient,
Stable application；
(2) the tooth yoke suitable for axial flux permanent magnet motor of the invention separates stator structure, by stator teeth
Center of top open up it is corresponding subtract square slot, effectively reduce axial flux permanent magnet motor work when cogging torque, promoted stator
The stability of structure application, reduces the generation of noise and vibration, guarantees the stable operation of motor；
(3) the tooth yoke suitable for axial flux permanent magnet motor of the invention separates stator structure, and stator yoke can pass through
Two kinds of silicon steel sheets are overrided to form along axial direction, and the molding of stator yoke is simple, convenient, and the precision controlling in forming process is high, and fixed
Sub- teeth portion can be pressed and molded by soft-magnetic composite material, molding strong flexibility, molding high-efficient, ensure that stator tooth
The formed precision of stator structure, improves the application stability of stator structure after portion and stator yoke matching are assembled；
(4) the tooth yoke suitable for axial flux permanent magnet motor of the invention separates stator structure, stator teeth and stator
The molding in yoke portion is simple, and formed precision and forming efficiency are higher, can effectively simplify the moulding process of existing stator structure, and it is fixed to be promoted
The molding precision of minor structure, and the assembly of stator teeth and stator yoke is convenient, can greatly promote the shaping efficiency of stator structure,
The processing cost for reducing axial flux permanent magnet motor stator structure, pushes the application of axial flux permanent magnet motor, has preferable
Application value.
Detailed description of the invention
Fig. 1 is the overall structure in the embodiment of the present invention suitable for the tooth yoke separation stator structure of axial flux permanent magnet motor
Schematic diagram；
Fig. 2 is the stator yoke in the embodiment of the present invention suitable for the tooth yoke separation stator structure of axial flux permanent magnet motor
Structural schematic diagram；
Fig. 3 is the stator teeth in the embodiment of the present invention suitable for the tooth yoke separation stator structure of axial flux permanent magnet motor
Structural schematic diagram；
In all the appended drawings, same appended drawing reference indicates identical technical characteristic, specifically: 1. stator teeths, 101.
Subtract square slot, 102. second convex blocks；2. stator yoke, 201. yoke portions protrusion, 202. teeth portion mounting grooves, 203. first convex blocks.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
In addition, as long as technical characteristic involved in the various embodiments of the present invention described below is each other not
Constituting conflict can be combined with each other.
The stator structure institute as shown in figure 1 separated in the preferred embodiment of the present invention suitable for the tooth yoke of axial flux permanent magnet motor
Show, it is assembled by stator yoke 2 as shown in Figure 2 and multiple stator teeths as shown in Figure 31 correspondence, stator
It is assembled simple, convenient.
Further, it is preferable to which the stator teeth 1 in embodiment is as shown in Figure 3, main body is trapezoidal wedge in cross section
Shape structure, i.e. side width are less than the width of the other side, and form a pair of mutual angled wedge shaped side, preferred embodiment
In the angles of two wedge shaped sides be preferably 30 °, certainly, the angle of two wedge shaped sides can also be preferably other according to actual needs
Angle, such as 15 °, 20 °, 36 °；Further, it is set respectively at the both ends that two wedge shaped sides correspond to 1 top and bottom of stator teeth
It is equipped with bulge-structure in long strip, so that two parallel sides of stator teeth 1 are substantially in the shape of an " I ", that is, it is parallel to be parallel to two
The vertical cross-section of side is substantially in the shape of an " I ", as shown in Figure 3；Further, stator teeth 1 two sides of the bottom bulge-structure
It is arranged so that the two sides of stator teeth 1 are respectively formed with the second convex block 102, in order to pair of the stator teeth 1 in stator yoke 2
It should install.
Subtract square slot 101 it is further preferred that offering at the top of stator teeth 1, subtracts square slot described in preferred embodiment
101 open up is intended to weaken or reduce the cogging torque of motor, so it is named as " subtracting square slot "；Further, it is preferable to real
The center of top for subtracting square slot 101 and being provided with stator teeth 1 in example is applied, the structure of two sides is along the axisymmetrical for subtracting square slot 101.
Further, it is preferable to which the stator yoke 2 in embodiment is as shown in Figure 2, preferably through in plate in a ring
Interval obtains after opening up multiple teeth portion mounting grooves 202 on the yoke portion body peripheral of structure, and interval opens up multiple teeth portion mounting grooves
Multiple spaced yoke portion protrusions 201 are formed after 202 on the periphery of yoke portion ontology, i.e., so that stator yoke 2 is substantially in such as
" gear " structure shown in Fig. 2；Further, it is preferable to the width of yoke portion protrusion 201 along its length in embodiment is equal,
I.e. each to be spaced the teeth portion mounting groove 202 opened up substantially in " trapezoidal " structure, teeth portion mounting groove 202 is close to the outer Monday of stator yoke 2
The width of side is greater than the width close to 2 inner circumferential side of stator yoke, and 1 phase of stator teeth being intended to wedge shaped structure is arranged such
Matching.
Further, it is preferable to it is respectively arranged with bulge-structure on the two opposite sides wall surface of teeth portion mounting groove 202 in embodiment,
That is the first convex block 203, preferably corresponding second convex block 102 are set as string configuration, not only can be with the second convex block 102
Sufficiently fitting increases the area of contact, guarantees the stability that stator teeth 1 is installed in teeth portion mounting groove 202, and strip
The setting form of structure is simple, more can guarantee the precision of setting, promotes the efficiency of setting；Further, the one of the first convex block 203
The top surface of the concordant stator yoke 2 in side end face, to guarantee the end face flatness of stator yoke 2, certainly, the two side ends of stator yoke 2
Face can be used as the top surface of stator yoke, and need to only overturn stator yoke 2 can realize turning for 2 top and bottom of stator yoke
Change, so a side end face of the first convex block 203 only need concordant stator yoke 2 a side end face can meet demand, and first is convex
Distance of the block 203 away from another side end face of stator yoke 2 is just equal to the thickness of the second convex block 102 in a preferred embodiment.
Further, it is preferable to stator teeth 1 in embodiment can Corresponding matching insertion stator yoke 2 teeth portion mounting groove
In 202, as shown in fig. 1, stator teeth 1 is correspondingly embedded in teeth portion mounting groove 202 with the lesser side of width, and stator teeth
Second convex block 102 of 1 two sides of the bottom abuts the bottom surface and side of the first convex block 203, i.e. the second convex block respectively with top surface and side
102 top surface abuts the bottom surface of the first convex block 203, and the side of the second convex block 102 abuts the side of the first convex block 203；Into one
Step ground is correspondingly embedded in the stator teeth 1 in teeth portion mounting groove 202 by way of bonding agent is bonded or through interference fit
Form is consolidated, and the bonding agent in preferred embodiment can be more preferably glue, and certainly, stator teeth 1 is installed in teeth portion
Fixation in slot 202 can also realize that this will not be repeated here by other fixed forms in the prior art；Then by multiple
Stator teeth 1 is corresponding assembled, fixed, it can be achieved that being suitable for the stator of axial flux permanent magnet motor on 2 periphery of stator yoke
The corresponding assembly of structure.
It is further preferred that multiple stator teeths 1 are corresponding be mounted in stator yoke 2 after, adjacent two stator teeth 1 it
Between formed and can accommodate the stator teeth notching of coil, and form a fixed width between the bulge-structure of 1 top surface two sides of adjacent two stator teeth
The notch arrangement of degree, as shown in fig. 1；It is further preferred that the stator teeth 1 being arranged in stator yoke 2 in preferred embodiment
Quantity is 12, and certainly, the setting quantity of stator teeth 1 can also be preferably other quantity, correspondingly, stator according to actual needs
The size of teeth portion 1 needs to make corresponding amendment, this can be preferably provided with according to actual needs, so this will not be repeated here.
Further, it is preferable to which the stator yoke 2 in embodiment can be laminated by the silicon steel sheet of two kinds of geomeries along axial direction
It forms, the size difference of two kinds of silicon steel sheets is mainly reflected in the position to form yoke portion protrusion 201, and is embodied in and to form yoke portion
It, can be in yoke portion protrusion after such difference can make multiple silicon steel sheets laminate along axial direction in the silicon steel sheet ledge width of protrusion 201
201 side forms the first convex block 203, so that the " T-shaped " structure in section of yoke portion protrusion 201；Further, it is preferable to embodiment
In stator teeth 1 preferably by soft-magnetic composite material compression molding, this molding mode is flexible, and molding precision is higher,
The structures such as the second convex block 102 can quickly be formed.
It is suitable for the stator structure that the tooth yoke of axial flux permanent magnet motor separates in the present invention, is in by being correspondingly arranged
The stator yoke 1 of " gear-like " and the stator teeth 2 being mounted on 1 periphery of stator yoke can be corresponded to, in the periphery of stator yoke 1
Upper interval opens up multiple teeth portion mounting grooves 202 that can be used for the installation of stator teeth 1, and respectively corresponds on stator teeth 1 and tooth
Second convex block 102 and the first convex block 203 are set in portion's mounting groove 202, stator tooth is realized with the abutting of two convex block corresponding end surfaces
Portion 1 in teeth portion mounting groove 202 it is quick, be accurately positioned and installation, the installation accuracy of stator teeth 1 has been effectively ensured, promoted
The assembled efficiency of stator structure, simplifies the preparation process of stator structure, reduces the processing cost of stator structure, pushes
The popularization and application of axial flux permanent magnet motor, have good promotion and application value.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of tooth yoke suitable for axial flux permanent magnet motor separates stator structure, which is characterized in that the stator structure includes
Stator yoke (2) and multiple correspond to the stator teeth (1) being assembled on the stator yoke (2) periphery；Wherein,
The stator yoke (2) is in " gear-like " structure, and peripheral ring is spaced apart is equipped with multiple teeth portion mounting grooves (202) upwards,
And the yoke portion that one fixed width is formed between the two teeth portion mounting grooves (202) is raised (201), the teeth portion mounting groove (202)
Notch by it is outer and it is interior successively reduce, and the two sides of the yoke portion raised (201) respectively correspond the stator teeth (1) and are provided with
First convex block (203) of in long strip and concordant raised (201) end face in the yoke portion；
Corresponding teeth portion mounting groove (202) setting of the stator teeth (1), is the trapezoidal wedge structure in cross section, and
Its a pair is mutually the first convex block that teeth portion mounting groove (202) two sides are respectively corresponded on the bottom of the wedge shaped side of certain angle
(203) it is provided with the second convex block (102), second convex block (102) can be correspondingly embedded in the teeth portion in the stator teeth (1)
Corresponding bottom surface and the yoke portion protrusion for abutting first convex block (203) respectively with top surface and side after in mounting groove (202)
(201) side, to realize fixation of the stator teeth (1) in corresponding teeth portion mounting groove (202)；Then multiple described fixed
Sub- teeth portion (1) can be sequentially embedded in corresponding teeth portion mounting groove (202) and fix, and be suitable for axial flux permanent magnet electricity to be formed
The stator structure of machine.
2. the tooth yoke according to claim 1 suitable for axial flux permanent magnet motor separates stator structure, wherein described fixed
Certain depth is offered at the top of sub- teeth portion (1) subtracts square slot (101), to reduce the cogging torque of motor.
3. the tooth yoke according to claim 2 suitable for axial flux permanent magnet motor separates stator structure, wherein described to subtract
Square slot (101) is provided with the center of top of the stator teeth (1), and the structure for subtracting square slot (101) two sides subtracts square with this
The axisymmetrical of slot (101).
4. the tooth yoke described in any one of claim 1 to 3 suitable for axial flux permanent magnet motor separates stator structure,
Wherein, it is respectively arranged with the bulge-structure for flushing in the stator teeth (1) top surface at the top of two wedge shaped sides, and made
The vertical cross-section of the stator teeth (1) is in the shape of an " I ".
5. the tooth yoke according to claim 4 suitable for axial flux permanent magnet motor separates stator structure, wherein adjacent two
It is separated with certain distance between bulge-structure at the top of the stator teeth (1), and is formed between two stator teeths (1)
The stator teeth notching of coil can be accommodated.
6. the tooth yoke according to any one of claims 1 to 5 suitable for axial flux permanent magnet motor separates stator structure,
Wherein, the angle of two wedge shaped sides is 30 °.
7. stator structure is separated suitable for the tooth yoke of axial flux permanent magnet motor described according to claim 1~any one of 6,
Wherein, the teeth portion mounting groove (202) on the stator yoke (2) is 12, correspondingly, the setting number of the stator teeth (1)
Amount is 12.
8. the tooth yoke according to any one of claims 1 to 7 suitable for axial flux permanent magnet motor separates stator structure,
Wherein, the stator teeth (1) and the stator yoke (2) bonding agent it is Nian Jie firm or by interference fit by way of
It is firm.
9. stator structure is separated suitable for the tooth yoke of axial flux permanent magnet motor described according to claim 1~any one of 8,
Wherein, the stator yoke (2) is overrided to form by the silicon steel sheet of two kinds of geomeries along axial direction.
10. separating stator knot suitable for the tooth yoke of axial flux permanent magnet motor described according to claim 1~any one of 9
Structure, wherein the stator teeth (1) is pressed and molded by soft-magnetic composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811045435.2A CN109193978A (en) | 2018-09-07 | 2018-09-07 | A kind of tooth yoke separation stator structure suitable for axial flux permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811045435.2A CN109193978A (en) | 2018-09-07 | 2018-09-07 | A kind of tooth yoke separation stator structure suitable for axial flux permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109193978A true CN109193978A (en) | 2019-01-11 |
Family
ID=64915261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811045435.2A Pending CN109193978A (en) | 2018-09-07 | 2018-09-07 | A kind of tooth yoke separation stator structure suitable for axial flux permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109193978A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109672314A (en) * | 2019-02-21 | 2019-04-23 | 东南大学 | A kind of axial magnetic field stator modules monophase machine |
| CN113020830A (en) * | 2021-03-17 | 2021-06-25 | 长江大学 | Splicing tool device and splicing method of all-metal stator |
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| CN1901324A (en) * | 2005-07-20 | 2007-01-24 | 雅马哈发动机株式会社 | Rotary electric machine and electric wheelchair mounted with rotary electric machine |
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Application publication date: 20190111 |
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