CN207251323U - Stator module, have its magneto and compressor - Google Patents
Stator module, have its magneto and compressor Download PDFInfo
- Publication number
- CN207251323U CN207251323U CN201720790825.7U CN201720790825U CN207251323U CN 207251323 U CN207251323 U CN 207251323U CN 201720790825 U CN201720790825 U CN 201720790825U CN 207251323 U CN207251323 U CN 207251323U
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- stator
- compressor
- inner outline
- magneto
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Abstract
The utility model discloses a kind of stator module, there is its magneto and compressor, stator module includes：Stator core, stator core has multiple stator tooths spaced apart, there is stator slot, stator tooth is extended radially inwardly along stator core, and the inner face of stator tooth is internal face between adjacent stators tooth, on the cross section a of stator core, orthographic projection of the central axis of stator core on a of cross section is point O1, and orthographic projection of the internal face on a of cross section is inner outline, and the distance of the middle point-to-point O1 of inner outline is L1, the ultimate range of every inner outline to point O1 are that L2, L1 and L2 meet：0.9≤L1/L2≤0.99；Stator winding, stator winding are located on stator core and use delta connection.Thus according to the stator module of the compressor magneto of the utility model, it can effectively eliminate or weaken air gap flux density and opposite potential harmonic wave, improve the overall performance and efficiency of motor.
Description
Technical field
It the utility model is related to Compressor Technology field, more particularly to a kind of stator module of compressor magneto,
With its magneto and compressor.
Background technology
In the prior art, the stator winding of compressor uses star connection more, and multiply enameled wire is used in star connection more
It is in parallel and around, on the one hand, since its total radical in parallel is more, realize equipment automatization coiling difficulty, while multi cord and rich pair
Windings in motor, lead-out wire wiring produce very big difficulty；Under normal circumstances, the mistake that multi cord passes through coiling nozzle coiling in equipment
Cheng Zhong, it may appear that situation about intersecting between line, gap is big between causing coil, and copper factor is extremely low, seriously affects performance, and equipment is transported
During turning, strand copper wire and it is rich easily there is line and hinder a little, so as to influence product quality, while the end of a thread is too many after the completion of coiling, line
Bag processing is complicated.By delta windings to solve the above problems in correlation technique, but because there may be the reason for circulation and
In the not recommended use of most applications, and circulation is as caused by 3 subharmonic of opposite potential.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this reason, this reality
With a kind of stator module of compressor magneto of new proposition, the stator module can effectively weaken or eliminate opposite electricity
The triple-frequency harmonics of gesture so that motor has the advantages that efficient, manufacturing is good.
The utility model also proposed a kind of magneto of the stator module with the compressor magneto.
The utility model also proposed a kind of compressor with the magneto.
According to the stator module of the compressor magneto of the utility model first aspect, including：Stator core, it is described
Stator core has multiple stator tooths spaced apart, has stator slot between the adjacent stator tooth, the stator tooth is described in
Stator core extends radially inwardly, and the inner face of the stator tooth is internal face, on the cross section a of the stator core,
Orthographic projection of the central axis of the stator core on the cross section a is point O1, and the internal face is on the cross section a
Orthographic projection be inner outline, the distance of intermediate point to the point O1 of the inner outline is L1, every inner outline
Ultimate range to the point O1 is that L2, L1 and L2 meet：0.9≤L1/L2≤0.99；Stator winding, the stator winding are set
On the stator core and use delta connection.
Thus according to the stator module of the compressor magneto of the utility model, triangle is used by stator winding
Connection so that stator winding can use relatively small line footpath, to realize high copper factor, realize the high efficiency of motor, effectively drop
The kelvin effect of low stator winding at high speeds, reduces AC resistance, lifts electric efficiency.And the intermediate point of inner outline arrives
The distance of point O1 is L1, and the ultimate range of every inner outline to point O1 is that L2, L1 and L2 meet：0.9≤L1/L2≤0.99.
So as to effectively eliminate or weaken 3 subharmonic of air gap flux density and opposite potential so that the application possibility of delta windings is big
Width is lifted, and then can improve the efficiency of magneto, ensures effective operation of motor so that motor manufacturing is good.
In addition, the stator module of compressor magneto according to the present utility model can also have skill additional as follows
Art feature：
Some embodiments according to the present utility model, the inner outline are formed as arc-shaped, the arc-shaped place circle
Radius R1, R1 and L1 meet：R1 ＞ L1.
Some embodiments according to the present utility model, the inner outline are ellipse arc, and the ellipse arc is fitted shape
Into the radius of circle be more than L1.
Some embodiments according to the present utility model, the inner outline are composed of at least two lines section, described interior
The radius R2, the R2 and the L1 of the fitting circle of contour line meet：R2 ＞ L1.
Alternatively, the inner outline of the stator tooth is composed including at least two segmental arcs and/or straightway.
Further, the inner outline of the stator tooth includes：First straight line section；Second straight line section；Arc section, described
The both ends of one line segment and second straight line section respectively with the arc section are connected, and the stator tooth inner surface contour line is along stator tooth
The heart is symmetrical arranged.
Some embodiments according to the present utility model, the stator winding are three-phase, per phase winding there are two groups of coils to take out
Head, one group coil tap of the every group of coil tap with other phase windings per phase winding are connected on same root lead-out wire, often
Phase winding includes multigroup coil, and multigroup coil per phase winding is connected in series.
There is determining for the compressor magneto of above-described embodiment according to the magneto of the utility model second aspect
Sub-component.
Since the stator module of the compressor magneto according to the utility model above-described embodiment has above-mentioned technology
Effect, therefore, the magneto of the utility model embodiment also have above-mentioned technique effect, i.e., according to the utility model embodiment
Magneto, by setting the stator module of above-mentioned compressor magneto, so as to effectively improve the work of magneto
Make efficiency and performance, and there is good manufacturing.
There is the magneto of above-described embodiment according to the compressor of the utility model third aspect.
Since there is above-mentioned technique effect according to the magneto of the utility model above-described embodiment, this practicality is new
The compressor of type embodiment also has above-mentioned technique effect, i.e., according to the compressor of the utility model embodiment, by setting
The compressor magneto of embodiment is stated, so as to may be such that compressor has the advantages that high efficiency, high-performance.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly by from following description
In become obvious, or recognized by the practice of the utility model.
Brief description of the drawings
Fig. 1 is the structure diagram according to the stator module of the compressor magneto of the utility model embodiment；
Fig. 2 is shown according to the part-structure of the stator module of the compressor magneto of the utility model one embodiment
It is intended to；
Fig. 3 is the part-structure according to the stator module of the compressor magneto of the utility model another embodiment
Schematic diagram；
Fig. 4 is the enlarged drawing according to stator core part-structure in Fig. 3；
Fig. 5 is the part-structure schematic diagram according to the magneto of the utility model embodiment；
Fig. 6 is the structure diagram according to the compressor of the utility model embodiment；
Reference numeral：
1000：Compressor；
100：The stator module of compressor magneto；
10：Stator core, 11：Stator tooth, 12：Stator slot, 13：Inner outline；
20：Stator winding；
30：Lead-out wire；
200：Rotor assembly, 201：Rotor core, 202：Permanent magnet, 203：Permanent magnet trough；
300：Bent axle；
400：Base bearing；
500：Cylinder；
600：Piston；
700：Supplementary bearing.
Embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings.Below by
The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and it is not intended that new to this practicality
The limitation of type.
In the description of the utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position of the instruction such as "front", "rear", "left", "right", " top ", " bottom " " interior ", " outer ", " axial direction ", " radial direction ", " circumferential direction "
Relation is based on orientation shown in the drawings or position relationship, is for only for ease of description the utility model and simplifies description, without
It is instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as the limitation to the utility model.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the utility model, " multiple " are meant that at least two, such as two
It is a, three etc., unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or be electrically connected or can communicate each other；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, can be the interaction relationship of connection inside two elements or two elements, unless otherwise restricted clearly.For this
For the those of ordinary skill in field, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
Below with reference to the accompanying drawings the stator module 100 of compressor magneto according to the utility model embodiment is described.
As shown in Figure 1, stator iron is included according to the stator module 100 of the compressor permanent magnet motor of the utility model embodiment
The stator winding 20 of 10 sum of core.
Stator winding 20 is located on stator core 10 and uses delta connection, so that stator winding 20 can use phase
To less line footpath, to realize high copper factor, the high efficiency of motor is realized, effectively reduce the collection skin of stator winding 20 at high speeds
Effect, reduces AC resistance, lifts electric efficiency.
For delta connection, specifically, stator winding 20 is three-phase, has two groups of coil taps per phase winding, per phase
Every group of coil tap group of winding is connected on same root lead-out wire 30 with one group of coil tap of other phase windings, three-phase around
The coil tap of group is connected two-by-two is formed as triangle, after the connection of three-phase windings coil tap can respectively with three lead-out wires 30
It is connected.
For example, can include first group of coil tap and second group of coil tap per phase winding, three-phase can be respectively A phases, B
Mutually with C phases, the wherein coil tap of A phase windings can be first group of coil tap a and second group of coil tap a, B phase winding
Coil tap can be first group of coil tap b and second group of coil tap b, thus, first group of coil tap a and second group of line
Circle tap b is connected and is connected to same lead-out wire 30, and first group of coil tap b is connected and is connected with second group of coil tap c
On to another lead-out wire 30, first group of coil tap c is connected with second group of coil tap a and is connected to same root lead-out wire 30
On.
Stator core 10 has multiple stator tooths 11 spaced apart, has stator teeth groove 12 between adjacent stators tooth 11, its
In, stator winding 20 is around being located on stator tooth 11.Stator tooth 11 is extended radially inwardly along stator core 10, stator tooth 11 it is interior
End face is internal face, on the cross section a of stator core 10, the orthographic projection of the central axis of stator core 10 on a of cross section
For point O1, orthographic projection of the internal face on a of cross section is inner outline 13, and the distance of the middle point-to-point O1 of inner outline 13 is
L1, the ultimate range of every inner outline 13 to point O1 is that L2, L1 and L2 meet：0.9≤L1/L2≤0.99.
That is, on the cross section a of stator core 10, the intermediate point of the inner outline 13 of each stator tooth 11 is to calmly
The distance of the central axis of sub- iron core 10 is L1, and the inner outline 13 of each stator tooth 11 arrives the central axis of stator core 10
The ratio of ultimate range L2, L1 and L2 are more than or equal to 0.9 and less than or equal to 0.99.It should be noted that inside and outside finger here
It is the direction at 10 radial direction both ends of stator core, i.e. 10 radial direction of stator core is towards the side of 10 central axis of stator core
To be interior, direction of 10 radial direction of stator core away from 10 central axis of stator core is outer.
Compressor of the prior art uses star connection more, and star connection has the function that to eliminate back-emf harmonic wave, nothing
Structure need to be improved to eliminate or weaken back-emf harmonic wave, but star connection be mostly requirement multiply enameled wire it is in parallel and around production
Product, on the one hand, since its total radical in parallel is more, realize equipment automatization coiling difficulty, while multi cord and rich to motor cloth
Line, 30 wiring of lead-out wire produce very big difficulty；And situation about intersecting between line occurs, gap is big between causing coil, and groove is full
Rate is extremely low, seriously affects performance.
Thus according to the stator module 100 of the compressor magneto of the utility model embodiment, pass through stator winding
20 use delta connection so that stator winding 20 can use relatively small line footpath, to realize high copper factor, realize motor
High efficiency, effectively reduces the kelvin effect of stator winding 20 at high speeds, reduces AC resistance, lift electric efficiency.It is and interior
The distance of the middle point-to-point O1 of contour line 13 is L1, and the ultimate range of every inner outline 13 to point O1 is that L2, L1 and L2 expire
Foot：0.9≤L1/L2≤0.99.So as to effectively eliminate or weaken 3 subharmonic of air gap flux density and opposite potential so that triangle
The application possibility of shape winding is substantially improved, and then can improve the efficiency of magneto, ensures effective operation of motor so that electricity
Machine manufacturing is good.
Alternatively, the distance of the both ends of every inner outline 13 to point O1 can be it is maximum be L2, from intermediate point
Onto the direction of one end of inner outline 13, the distance between inner outline 13 and point O1 gradually increase.So as to further
Back-emf harmonic wave is eliminated, ensures the overall performance of magneto.
In some embodiments of the utility model, inner outline 13 can be formed as arc-shaped, arc-shaped place circle
Radius R1, R1 and L1 meet：R1 ＞ L1.It is humorous so as to further eliminate or weaken 3 subharmonic of opposite potential and other time
Ripple, reduce back-emf harmonic content so that magneto have manufacturing it is good, it is efficient the advantages that, ensure motor
Performance.
Specifically, as shown in Fig. 2, the circle circle that i.e. center of circle as shown in Figure 2 is O1, radius is L1, mistake where inner outline 13
Where the intermediate point of inner outline 13 and circle using O1 as the center of circle are located at inner outline 13 in the circle of circle, cross in inner outline 13
Between point and form off-centre operation, the place circle of R1 ＞ L1, that is, inner outline 13 by the circle where circle and the inner outline 13 in the center of circle of O1
Radius R1 be more than the intermediate point of inner outline 13 and the radius using O1 as the circle in the center of circle.Thus, stator tooth 11 and stator iron
Non-uniform gap can be formed between rotor assembly in core 10, so as to weaken or eliminate the harmonic wave of motor, improves Permanent Magnet and Electric
The work efficiency of machine.As shown in figure 5, rotor assembly 200 can include rotor core 201 and permanent magnet 202, rotor core 201
With permanent magnet trough 203, permanent magnet 202 is located in permanent magnet trough 203.
In other embodiments of the utility model, inner outline 13 can be ellipse arc, and ellipse arc is fitted to be formed
The radius of circle be more than L1, in other words, inner outline 13 is formed as arc and to be non-radiused, and the arc of inner outline 13 passes through
Distance of the radius more than the middle point-to-point O1 of inner outline 13 of the circle formed is fitted, so as to further eliminate or weaken
3 subharmonic and other subharmonic of opposite potential, reduce back-emf harmonic content, so that magneto is good with manufacturing
Well, the advantages that efficient, ensure the overall performance of motor.
In other embodiments of the utility model, as shown in Figure 3 and Figure 4, inner outline 13 can be by least two lines
Section is composed, and the radius R2, R2 and L1 of the fitting circle of inner outline 13 meet：R2 ＞ L1, in other words, inner outline 13 can be with
Including a plurality of line segment, the radius for the circle that the multi-section-line fitting of every inner outline 13 forms is R2, and R2 is more than its inner outline 13
Intermediate point to O1 distance.Preferably, a plurality of line segment is formed as substantially arc-shaped structure, so that further to improve electricity
The operational efficiency of machine, ensures the performance of motor.
In some specific examples of the utility model, the inner outline 13 of stator tooth 11 includes at least two sections of segmental arcs
And/or straightway is composed.In other words, the inner outline 13 of stator tooth 11 can include two or more segmental arc
And/or straightway is composed.In some examples of the utility model, inner outline 13 can include two or two with
On segmental arc composition, in other examples of the utility model, inner outline 13 can include two or more than two
Straightway composition, in the other example of the utility model, inner outline 13 can include two or more arc
Shape section and straightway composition, i.e., inner outline 13 can include at least one segmental arc and straight line section forms.
For example, the inner outline 13 of stator tooth 11 can include first straight line section, second straight line section and arc section, First Line
Section and second straight line section are connected with the both ends of arc section respectively, and central symmetry of 11 inner outline 13 of stator tooth along stator tooth 11
Set.In other words, the inner outline 13 of stator tooth 11 can be sequentially connected group by first straight line section, arc section and second straight line one end
The both ends of arc section are respectively provided at into, the first line segment and second line segment, and inner outline 13 is on the central point of its own
Set.Wherein first straight line section, arc section and second straight line section are fitted the radius R2 for the circle to be formed more than in inner outline 13
Between point-to-point O1 distance L1.
It should be noted that the shape of a plurality of inner outline 13 can need not be identical, for example, a plurality of inner outline 13
The inner outline to be formed can be combined including arc-shaped inner outline 13, ellipse arc inner outline 13 or a plurality of line segment
13, as long as the distance L1 of the middle point-to-point O1 of every inner outline 13 and every inner outline 13 arrive the ultimate range L2 of point O1
Meet：0.9≤L1/L2≤0.99, preferably of course, the shape of every inner outline 13 is identical, so that can not only
The performance of motor is enough effectively improved, is also beneficial to the manufacturing of the stator module 100 of compressor magneto.
In some embodiments of the utility model, stator winding 20 can be three-phase, have two groups of coils per phase winding
Tap, one group coil tap of the every group of coil tap with other phase windings per phase winding are connected to same root lead-out wire 30
On, include multigroup coil per phase winding, multigroup coil per phase winding is connected in series.Thus, connected by multigroup coil, so that
Back-emf harmonic wave can further be eliminated, avoid causing ring current, with improve magneto to and performance.In such as Fig. 1
In the example shown in Fig. 5, stator tooth 11 and stator teeth groove 12 are respectively 9, and every group of winding has 3 groups of coils.
The utility model also proposed a kind of stator module 100 of the compressor magneto with above-described embodiment
Magneto.
Since the stator module 100 of the compressor magneto according to the utility model above-described embodiment has above-mentioned skill
Art effect, therefore, the magneto of the utility model embodiment also have above-mentioned technique effect, i.e., are implemented according to the utility model
The magneto of example, by setting the stator module 100 of above-mentioned compressor magneto, so as to effectively improve magneto
Work efficiency and overall performance, and there is good manufacturing.
The utility model, which also proposed a kind of compressor 100, has the magneto of above-described embodiment.
Since there is above-mentioned technique effect according to the magneto of the utility model above-described embodiment, this practicality is new
The compressor of type embodiment also has above-mentioned technique effect, i.e., according to the compressor of the utility model embodiment, by setting
The compressor magneto of embodiment is stated, so as to may be such that compressor has the advantages that high efficiency, high-performance.
As shown in fig. 6, according to other compositions of the compressor 1000 of the utility model embodiment such as cylinder 500, main shaft
It is all for those of ordinary skills to hold 400, supplementary bearing 700, piston 600 and bent axle 300 etc. and operation
Know, be not detailed herein.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature
Can be that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, first is special
Sign second feature " on ", " top " and " above " can be fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height and be less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
Combine in an appropriate manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this area
Technical staff can by the different embodiments or example described in this specification and different embodiments or exemplary feature into
Row combines and combination.
Although the embodiment of the utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to the limitation to the utility model is interpreted as, those of ordinary skill in the art are in the scope of the utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (9)
- A kind of 1. stator module of compressor magneto, it is characterised in that including：Stator core, the stator core have multiple stator tooths spaced apart, have stator slot between the adjacent stator tooth, The stator tooth is extended radially inwardly along the stator core, and the inner face of the stator tooth is internal face, in the stator On the cross section a of iron core, the orthographic projection of the central axis of the stator core on the cross section a is point O1, the inner wall Orthographic projection of the face on the cross section a is inner outline, and the distance of intermediate point to the point O1 of the inner outline are L1, The ultimate range of every inner outline to the point O1 are that L2, L1 and L2 meet：0.9≤L1/L2≤0.99；Stator winding, the stator winding are located on the stator core and use delta connection.
- 2. the stator module of compressor magneto according to claim 1, it is characterised in that the Internal periphery is linear As arc-shaped, radius R1, R1 and the L1 satisfaction of the arc-shaped place circle：R1 ＞ L1.
- 3. the stator module of compressor magneto according to claim 1, it is characterised in that the inner outline is Ellipse arc, the radius that the ellipse arc is fitted the circle to be formed are more than L1.
- 4. the stator module of compressor magneto according to claim 1, it is characterised in that the inner outline by At least two lines section is composed, and the radius R2, the R2 and the L1 of the fitting circle of the inner outline meet：R2 ＞ L1.
- 5. the stator module of compressor magneto according to claim 4, it is characterised in that the stator tooth it is interior Contour line includes at least two segmental arcs, alternatively, the inner outline of the stator tooth includes at least two straightways, alternatively, institute Stating the inner outline of stator tooth includes at least one segmental arc and at least one straightway.
- 6. the stator module of compressor magneto according to claim 5, it is characterised in that the stator tooth it is interior Contour line includes：First straight line section；Second straight line section；Arc section, the both ends of first straight line section and second straight line section respectively with the arc section are connected, and the stator tooth Inner surface contour line is along stator tooth center symmetric setting.
- 7. the stator module of compressor magneto according to claim 1, it is characterised in that the stator winding is Three-phase, has two groups of coil taps per phase winding, one group coil of the every group of coil tap per phase winding with other phase windings Tap is connected on same root lead-out wire, includes multigroup coil per phase winding, multigroup coil per phase winding is connected in series.
- 8. a kind of magneto, it is characterised in that including the compressor magneto any one of claim 1-7 Stator module.
- 9. a kind of compressor, it is characterised in that including the magneto described in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720790825.7U CN207251323U (en) | 2017-06-30 | 2017-06-30 | Stator module, have its magneto and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720790825.7U CN207251323U (en) | 2017-06-30 | 2017-06-30 | Stator module, have its magneto and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207251323U true CN207251323U (en) | 2018-04-17 |
Family
ID=61878277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720790825.7U Withdrawn - After Issue CN207251323U (en) | 2017-06-30 | 2017-06-30 | Stator module, have its magneto and compressor |
Country Status (1)
| Country | Link |
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| CN (1) | CN207251323U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154687A (en) * | 2017-06-30 | 2017-09-12 | 广东美芝制冷设备有限公司 | Stator module, magneto and compressor with it |
| WO2021056853A1 (en) * | 2019-09-25 | 2021-04-01 | 安徽威灵汽车部件有限公司 | Stator, motor, and vehicle |
-
2017
- 2017-06-30 CN CN201720790825.7U patent/CN207251323U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154687A (en) * | 2017-06-30 | 2017-09-12 | 广东美芝制冷设备有限公司 | Stator module, magneto and compressor with it |
| WO2021056853A1 (en) * | 2019-09-25 | 2021-04-01 | 安徽威灵汽车部件有限公司 | Stator, motor, and vehicle |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180417 Effective date of abandoning: 20230728 |