CN207200421U - The stator module and motor of motor - Google Patents
The stator module and motor of motor Download PDFInfo
- Publication number
- CN207200421U CN207200421U CN201721135608.0U CN201721135608U CN207200421U CN 207200421 U CN207200421 U CN 207200421U CN 201721135608 U CN201721135608 U CN 201721135608U CN 207200421 U CN207200421 U CN 207200421U
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- Prior art keywords
- stator module
- motor
- framework
- lead
- out wire
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- 238000000605 extraction Methods 0.000 claims abstract description 9
- 230000004308 accommodation Effects 0.000 claims abstract description 8
- 238000004804 winding Methods 0.000 claims abstract description 7
- 239000011810 insulating material Substances 0.000 claims abstract description 4
- 238000010276 construction Methods 0.000 claims abstract description 3
- 238000005304 joining Methods 0.000 claims abstract description 3
- 230000007246 mechanism Effects 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 8
- 239000004411 aluminium Substances 0.000 description 5
- 238000002788 crimping Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000819 phase cycle Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000837 restrainer Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Motor Or Generator Frames (AREA)
Abstract
A kind of stator module of motor, the polyphase electromagnetic line winding that the stator module includes the skeleton of insulating materials and is wrapped on the skeleton are the utility model is related to, these electromagnetism line windings have the end section being electrically connected with leading to multiple lead-out wires of power supply.According to the utility model, the receiving portion for the end section for being exclusively used in laying electromagnetic wire is provided with the skeleton, wherein, the stator module also includes and the joining extraction line bracket in described accommodation section, the lead-out wire framework construction extends into the outside of the housing towards motor, and the lead-out wire is guided to the outside of the housing.The utility model allows to connect electromagnetic wire and lead-out wire using common curled crimp type terminal, makes its firm and reliable connection, and avoids the dependence of the corollary equipment to costliness, improves the production efficiency of motor and reduces the production cost of motor.The utility model further relates to the motor with this stator module.
Description
Technical field
It the utility model is related to motor, more particularly to the stator of motor.
Background technology
Become known for the micro-machine of the household electrical appliance such as washing machine.One example of this motor is referred to as " external rotor electric
Machine ".The external rotor electric machine generally include stator and the outside for being arranged on the stator and can in the presence of electromagnetic field phase
For the rotor of stator rotation.The stator includes iron core and insulation framework, be disposed with thereon by electromagnetic wire be entwined around
Group.These electromagnetic wires are generally made up of the enamel-covered wire of metal such as copper or aluminium, and the inside of the housing in motor is drawn with being used as
The electric wire of outlet is connected, to connect power supply, especially AC power via the lead-out wire.
Conventionally, the exposed end section of curled crimp type terminal crimping electromagnetic wire and lead-out wire can be used, so that
Electrical connection is established between them.However, for motor especially micro-machine, if using common curled crimp type terminal
Electromagnetic wire and lead-out wire are connected, then because this terminal can not be fixed, easily because motor oscillating draws in motor operation course
Play connection to loosen, so as to trigger failure.Therefore, in motor, at present through being realized frequently with the MAG-MATE terminals of TE companies
Connection between electromagnetic wire and lead-out wire.Specifically, electromagnetic wire is crimped into by MAG-MATE terminals and is arranged at the exhausted of stator
In fixed seat on edge skeleton, lead-out wire is then crimped into the terminal coordinated with MAG-MATE terminals and inserted by the terminal
In MAG-MATE terminals, the electrical connection thus established in motor stator between electromagnetic wire and lead-out wire.The lead-out wire can quilt
The support being arranged on by screw on stator supports, or is freely placed on the insulated part of stator and is then assembling
Fixed during motor.In addition, fluid sealant generally is coated in the part that electromagnetic wire is connected with MAG-MATE terminals to prevent electromagnetic wire
End section because exposed and oxidized.
However, the cost of this terminal is far above the common curled crimp type terminal commonly used to two electromagnetic wires of connection.
Especially, for making electromagnetic wire realize that the crimping apparatus price of connection is very expensive by MAG-MATE terminals with lead-out wire, and
And fault rate is high in use, stability is poor.Being additionally, since needs the three-phase of motor to connect electromagnetic wire and extraction respectively
Line, and it also requires electromagnetic wire is connected in common port, it is therefore desirable to which multiple this crimping apparatus, this had not only increased cost but also increased
Space, economy are very poor.
When being attached using MAG-MATE terminals, it is necessary to the terminal is pierced into the electromagnetic wire that is formed by enamel-covered wire with
Establish electrical contact.The contact area very little of this thrust-type contact, therefore big contact resistance and electric current are easily produced, and have
It may will be pierced into point ablation.When electromagnetic wire is aluminium enamel-covered wire, because the intensity of aluminum steel is relatively low, it is also easy to produce when being punctured
The mass defects such as disconnecting, loose contact；The corrosion-resistant of aluminum steel is additionally, since, as time goes by, this aluminum electromagnetism
Line is easy to produce corrosion phenomenon with the MAG-MATE positions coordinated, causes the breaking problem of motor stator.This results in motor
The quality of product is difficult to be guaranteed.
In addition, in above-mentioned known arrangement, the support for fixing lead-out wire fills via the insulation framework of screw and stator
With together, the support needs to be tightened when lifting lead-out wire to deviate to prevent not-go-end with binding strap, process cumbersome, and cost is high,
Production efficiency is low.Moreover, it is noted that phase sequence when by MAG-MATE terminal compression joint electromagnetic wires, and will with draw it is traditional thread binding
Phase sequence is paid attention to when being inserted into the MAG-MATE terminals being connected with electromagnetic wire with terminal together, is otherwise very easy to cause
Phase sequence mistake, so as to cause the steering of motor opposite or not work even.Finally, it is necessary to which lead-out wire is fixed on into branch with binding strap
On frame, the support is then screwed again.These it is cumbersome and uninteresting, it is necessary to material it is a lot, cost is high, assembly technology
Complexity, and need special assembling tool.
Utility model content
The utility model is intended to solve above-mentioned the problems of the prior art by proposing a kind of stator module of motor.
Specifically, the utility model proposes the stator module of such a motor, the stator module to include insulating materials
Skeleton and the polyphase electromagnetic line winding being wrapped on the skeleton, these electromagnetism line windings have multiple extractions with leading to power supply
Line is electrically connected end section together, wherein, the end section for being exclusively used in laying electromagnetic wire is provided with the skeleton
Receiving portion；The stator module also include with the joining extraction line bracket in described accommodation section, the lead-out wire framework construction is into court
Extend to the outside of housing of motor, the lead-out wire is guided to the outside of the housing.
The utility model a special space is devised in the insulation framework of stator to accommodate electromagnetic wire with extraction
The connected free end section of line, this allows to crimp electromagnetic wire and lead-out wire using traditional curled terminal, and thus
Pyrocondensation insulator cap can be arranged at crimping position to ensure alternate reliable insulation, effectively prevent electromagnetic wire to be oxidized corrosion.So
Connection no longer need to use MAG-MATE terminals to realize, and big contact can be established between electromagnetic wire and lead-out wire
Area so that whole firm and reliable connection, the reliability and quality of motor product can be improved, reduce the cost of motor product,
The labor intensity needed for assembling is reduced, improves operating efficiency so that operation becomes simple and easy.The program is also reduced to costliness
The dependence of equipment, it is only necessary to once pay attention to connecting line sequence when connecting electromagnetic wire and lead-out wire, reduce the error of motor line sequence
Probability, so as to reduce labor strength, reduce manual maintenance cost.
According to a preferred embodiment of the present utility model, described accommodation section is the cavity defined by peripheral wall, described to draw
Go out installing component and guide member that line bracket includes being connected with each other, the installing component is arranged on the cavity, the guide member
Extend to the outer surface of the housing of motor and be configured with guiding groove.
According to another preferred embodiment of the present utility model, the installing component includes being intended to be installed on the cavity
There is the cross sectional shape with the cavity to match for first framework and the second framework stretched out from first framework, first framework
Profile, second framework narrows relative to the first framework, and the guide member is placed on second framework.
According to further embodiment of the present utility model, there is first framework peripheral wall buckle with the cavity to connect
The assemble mechanism of conjunction.Preferably, the assemble mechanism includes two relative hook portions being spaced apart from each other, and each hook portion is equal
Formed by lug prominent from the first framework and that stopper protrusion is carried in end.
The setting of buckle-type assemble mechanism enable draw line bracket be readily assembled on the skeleton of stator and from
Dismantled on the skeleton, so as to improve the packaging efficiency of motor with simplified structure.
According to another preferred embodiment of the present utility model, second framework reduces relative to first framework.This
Sample, the top surface of the guide member on second framework can flush or below the first framework top surface and thus flush or
Less than the top surface of receiving portion so that lead-out wire easily can march to the guide member from the receiving portion.
According to another preferred embodiment of the present utility model, position restrainer is provided with the guiding groove of the guide member
Structure, for constraining the lead-out wire.Preferably, the position-limit mechanism includes being arranged on the relative side wall of the guiding groove
On two clasps, the two clasps may be designed to the barb of elastically deformable, that is, be designed to the side wall from guiding groove
Towards the crook of the basal surface opening of the guiding groove.It is further preferred that described two clasps are facing with each other and with substantially etc.
It is spaced apart in the distance of the diameter of single lead-out wire.
Above-mentioned design make it that length of lead-out wire need not be arranged in assembling motor, will only drawn after line bracket is drawn in installation
Outlet is caught in barb, while need not reuse mounting screw and binding strap, simplifies assembly technology, improves production
Efficiency, reduce motor cost.In addition, lead-out wire abjection is also prevented from during lead-out wire to be caught in the barb for drawing line bracket,
So that the lead-out wire will not encounter other conductive or moving components in motor operation course.
According to another preferred embodiment of the present utility model, the lid of covering described accommodation section is provided with, the lid also at least portion
Divide the ground covering extraction line bracket and the lead-out wire by the lead-out wire rack bearing.It is possible thereby to realize draw line bracket with
And lead-out wire is fixedly secured.
The utility model further relates to a kind of motor, and the motor includes stator module as previously described.
Preferably, the motor is external rotor electric machine, i.e. the motor includes being arranged in turning for the outside of the stator module
Son.
Brief description of the drawings
Describe preferred embodiment of the present utility model in detail with reference to the accompanying drawings, in the accompanying drawings：
Figure 1A shows the top view of the stator module according to preferred embodiment of the present utility model；
Figure 1B is the side view of stator module shown in Figure 1A, wherein being broken away along the part of the line H-H in Figure 1A to show
The receiving portion of stator module；
Fig. 2A -2C show draw line bracket preferred embodiment, wherein, Fig. 2A be draw line bracket top view, Fig. 2 B
It is the profile intercepted along the line A-A in Fig. 2A, Fig. 2 C are the views along the cross-sections looked of the line B-B in Fig. 2A.
Embodiment
The utility model has the motor of electromagnetism line winding especially suitable for its stator, is especially adapted for use in rotor and is arranged in
External rotor electric machine on the outside of stator.Especially, the electromagnetic wire can be aluminium magnet wire, such as aluminium enamel-covered wire.Certainly, this practicality
It is new to be applied to other kinds of motor, and it is applied to such as copper magnet wire.
Referring to Figure 1A -1B, there is shown with the stator module with lead-out wire 3.As that can find out on the right side of this two width figure,
Lead-out wire 3 can be provided with connection-peg at one end, to be plugged into the plug socket or circuit that are directly or indirectly connected with power supply
Plate.
As it is generally known, stator module includes skeleton 1, the skeleton 1 be made up of the insulating materials of such as PBT plastic and
With columnar shape on the whole.Multiple radially projecting arms or tooth 11, these arms are provided with the periphery wall of the skeleton 1
Or tooth 11 is wound with the winding formed by electromagnetic wire 2 for example with T-shaped cross sectional shape on each wall or tooth 11.
The electromagnetic wire 2 can be made up of aluminium enamel-covered wire, and be connected with each other in a manner of packet.Typically, it is arranged on
Electromagnetic wire 2 on the multiple arm or tooth 11 of skeleton 1 is segmented into three groups, and the electromagnetic wire 2 in each group is connected with each other simultaneously
And there is free end section in end, the end section can electrically connect with a lead-out wire 3, and the lead-out wire 3 then leads to
One phase of AC power.
According to an essential characteristic of the present utility model, special receiving portion 13 is provided with the skeleton 1 of stator module, with
For disposing the end section of the lead-out wire 3 being connected to each other and electromagnetic wire 2.Here, electromagnetic wire 2 and corresponding lead-out wire 3
End conductive part can be connected by common curled crimp type terminal, or even can only pass through heat-shrink tube or insulating cement
Band is connected with each other.
Receiving portion 13 can be by forming from the space of the inward-facing setting in the periphery of skeleton 1.Preferably, the receiving portion 13 can be with
It is that the groove or cavity formed and with close-shaped section is defined by peripheral wall.The peripheral wall can include by skeleton 1
Outer wall, the inwall relative with the outer wall and two side walls of the connection outer wall and inwall that a part for periphery wall is formed.
Described accommodation section 13 can be configured in top (on the basis of direction during by assembling in face of user, i.e. top in Figure 1B)
It is open, and is closing in bottom.
Preferably, receiving portion 13 is the integral part of skeleton 1.As an example, the receiving portion 13 can be in skeleton 1
It is integrally formed in manufacturing process by molding in the skeleton 1.
According to another essential characteristic of the present utility model, it is additionally provided with and draws line bracket 4.As shown in Figure 1A and 1B, this draws
Go out line bracket 4 and be especially rigidly fixed connection receiving portion 13, and be configured to from the receiving portion 13 guide lead-out wire 3 to electricity
The outside of the housing (not shown) of machine.
It is appreciated that the extraction line bracket 4 is rigid on the whole, it for example can be moulded by the PP that with the addition of glass fibre
Material material is made.
Illustrate the preferred embodiment of lead-out wire support 4 referring to Fig. 2A -2C.
Referring to Fig. 2A, installing component 5 and guide member 6 can be advantageously comprised by drawing line bracket 4.The installing component 5
For being connected or attached to receiving portion 13.The guide member 6 is connected with installing component 5, for support lead-out wire 3 and
Extend towards the outside of housing of motor for example to the proximity of the housing, the lead-out wire 3 is guided out the housing.
As shown in Figure 2 A and 2B, installing component 5 is preferably made up of the first framework 51 and the second framework 52.First framework 51
The profile to match with the cross sectional shape with receiving portion 13, for being assemblied in the receiving portion 13.Second framework 52 with
First framework 51 is connected and stretched out from first framework 51, for receiving and laying guide member 6.
Advantageously, the second framework 52 is configured to narrow relative to the first framework 51, installing component 5 is had on the whole
Substantially T-shaped shape.In addition advantageously, the framework 52 of the first framework 51 and second is integral, that is, installing component 5 by
Single integrated part is formed.
As that can find out from Fig. 2 B, preferably make the second framework 52 relative to the first framework 51 (towards the direction of receiving portion)
Reduce, so that guide member 6 on second framework 52 can be substantially flush with the first framework 51 or less than first frame
Frame 51.So, when installing component 5 is assembled in the open top of receiving portion 13 by its first framework 51, positioned at the installation
The top surface or base surface (that is, the guide member 6 be used for carry the surface of lead-out wire 3) of guide member 6 on part 5 can be with
It is substantially flush or less than the open top, is smoothly drawn from receiving portion 13 so as to be advantageous to lead-out wire 3.
Referring to Fig. 2 C and Figure 1B and Fig. 2 B are combined, the first framework 51 there can be assemble mechanism.The assemble mechanism is from
The bottom surface (that is, first framework 51 in face of the surface of receiving portion 13) of one framework 51 is generally perpendicularly along the outer of receiving portion 13
Leg extends, and thus snaps engagement on the peripheral wall of the receiving portion 13.
Herein, it is preferable that the assemble mechanism includes two relative hook portions 510 being spaced apart, each hook portion
510 in the form of the lug stretched out from the first framework 51, and have stopper protrusion in end.The two hook portions 510 are suitable
In being hooked in two side walls of receiving portion 13.
Certainly, installing component 5 or its first framework 51 can also be assembled in receiving portion 13 by other mechanisms or mode,
Especially it is to fit on the peripheral wall of the receiving portion 13.
As shown in Figure 1A and Fig. 2 B-2C, guide member 6 can be configured to the side wall in both sides with general vertical, institute
Top surface or base surface that side wall is substantially perpendicular to the guide member 6 are stated, is consequently formed for keeping and guiding lead-out wire 3
Guiding groove.Advantageously, the guide member 6 can be configured to outside from installing component 5 or receiving portion 13 towards the housing of motor
Portion narrows, and is consequently formed the global shape of generally y-shaped or T-shaped, as that can find out from Fig. 2A.
Especially, guide member 6 be inserted into the second framework 52 of installing component 5 or snap engagement in this second
On framework 52.
According to a preferred embodiment of the present utility model, it is provided with the guiding groove of guide member 6 and draws for constraint
The position-limit mechanism of outlet 3.
Referring to Figure 1A and Fig. 2A -2C, the position-limit mechanism includes two clasps 610.The two clasps 610 are arranged on guiding
Two side walls relative to each other for being used to define its guiding groove of part 6, and each clasp 610 is configured to direction and is somebody's turn to do
Basal surface (the namely base surface of the guide member 6) opening of guiding groove, so as to form barb.
It is appreciated that each clasp 610 can elastic deformation, so as to which each one or more lead-out wires 3 are received simultaneously
Remain at.Herein, it is preferable that described two clasps 610 are to be substantially equal to the spacing of the diameter of single lead-out wire each other
Arranged in face of ground.
Advantageously, the guide member 6 can be integrated part.That is, clasp 610 and for define guiding
The side wall of groove is all the integral part of the guide member 6, and can be formed in the manufacturing process of the guide member 6.
Finally, as shown in Figure 1A, it can be provided for covering the lid 7 of receiving portion 13.The lid 7 is fixed on the top of receiving portion 13
Portion, and covering part draws line bracket 4 and part lead-out wire 3, lead-out wire 3 is more firmly kept.
The preferred embodiment that the utility model is not limited to be described above and shown, but can be with including those skilled in the art
Any modifications and variations expected.
Claims (12)
1. a kind of stator module of motor, including the skeleton of insulating materials and the polyphase electromagnetic line that is wrapped on the skeleton around
Group, these electromagnetism line windings include with lead to multiple lead-out wires of power supply be electrically connected together with end section, its feature
It is, the receiving portion for the end section for being exclusively used in laying electromagnetic wire is provided with the skeleton, wherein, the stator module also wraps
Include and extend with the joining extraction line bracket in described accommodation section, the lead-out wire framework construction into the outside of the housing towards motor,
For the lead-out wire is guided to the outside of the housing.
2. stator module according to claim 1, it is characterised in that described accommodation section is the cavity defined by peripheral wall,
The installing component and guide member drawn line bracket and include being connected with each other, the installing component are arranged on the cavity, and this draws
Lead part extend to motor housing outer surface and be configured with guiding groove.
3. stator module according to claim 2, it is characterised in that the installing component includes being intended to be installed to described recessed
The first framework on chamber and the second framework from first framework stretching, first framework have the cross sectional shape with the cavity
The profile to match, second framework narrow relative to first framework, and the guide member is placed on second framework.
4. stator module according to claim 3, it is characterised in that first framework has the peripheral wall with the cavity
The assemble mechanism of snap engagement.
5. stator module according to claim 4, it is characterised in that the assemble mechanism includes two to be spaced apart from each other
Relative hook portion, each hook portion are formed by lug prominent from the first framework and that stopper protrusion is carried in end.
6. according to the stator module described in one of claim 3-5, it is characterised in that second framework is relative to described first
Framework reduces.
7. according to the stator module described in one of claim 2-5, it is characterised in that set in the guiding groove of the guide member
Position-limit mechanism is equipped with, for constraining the lead-out wire.
8. stator module according to claim 7, it is characterised in that the position-limit mechanism includes being arranged on the guide groove
Two clasps in the relative side wall of groove, the two clasps towards guiding groove basal surface opening and can elasticity become
Shape.
9. stator module according to claim 8, it is characterised in that described two clasps are facing with each other and separate one
Equal to the distance of the diameter of single lead-out wire.
10. according to the stator module described in one of claim 1-5, it is characterised in that the lid of covering described accommodation section is provided with,
The lid also covers the extraction line bracket at least in part.
11. a kind of motor, it is characterised in that the motor includes the stator module as described in one of preceding claims.
12. motor according to claim 11, it is characterised in that the motor includes being arranged in the outside of the stator module
Rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721135608.0U CN207200421U (en) | 2017-09-06 | 2017-09-06 | The stator module and motor of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721135608.0U CN207200421U (en) | 2017-09-06 | 2017-09-06 | The stator module and motor of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207200421U true CN207200421U (en) | 2018-04-06 |
Family
ID=61791346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721135608.0U Active CN207200421U (en) | 2017-09-06 | 2017-09-06 | The stator module and motor of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207200421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112117853A (en) * | 2019-06-19 | 2020-12-22 | 尼得科电机（青岛）有限公司 | Stator assembly of motor, manufacturing method thereof and stator of motor |
-
2017
- 2017-09-06 CN CN201721135608.0U patent/CN207200421U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112117853A (en) * | 2019-06-19 | 2020-12-22 | 尼得科电机（青岛）有限公司 | Stator assembly of motor, manufacturing method thereof and stator of motor |
| CN112117853B (en) * | 2019-06-19 | 2022-05-06 | 尼得科电机（青岛）有限公司 | Stator assembly of motor, manufacturing method thereof and stator of motor |
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