CN111064334B - Three-phase permanent magnet synchronous motor and dust collector with same - Google Patents

Three-phase permanent magnet synchronous motor and dust collector with same Download PDF

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Publication number
CN111064334B
CN111064334B CN201911252276.8A CN201911252276A CN111064334B CN 111064334 B CN111064334 B CN 111064334B CN 201911252276 A CN201911252276 A CN 201911252276A CN 111064334 B CN111064334 B CN 111064334B
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CN
China
Prior art keywords
stator
teeth
magnet synchronous
phase permanent
rotor
Prior art date
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Active
Application number
CN201911252276.8A
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Chinese (zh)
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CN111064334A (en
Inventor
陈彬
胡余生
肖勇
张志东
史进飞
肖胜宇
李霞
唐林
朱绍轩
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201911252276.8A priority Critical patent/CN111064334B/en
Publication of CN111064334A publication Critical patent/CN111064334A/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K21/00Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/14Stator cores with salient poles
    • H02K1/146Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H02K1/148Sectional cores
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2201/00Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/03Machines characterised by aspects of the air-gap between rotor and stator
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2213/00Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03Machines characterised by numerical values, ranges, mathematical expressions or similar information

Abstract

The invention provides a three-phase permanent magnet synchronous motor and a dust collector with the same. The three-phase permanent magnet synchronous motor comprises a stator yoke, wherein the stator yoke is of an annular structure, and a connecting part is arranged on the inner circumferential surface of the stator yoke; the stator yoke is provided with a plurality of stator teeth, the plurality of stator teeth are arranged along the inner circumferential surface of the stator yoke at intervals, the plurality of stator teeth are connected with the stator yoke through a connecting part, one end, far away from the stator yoke, of each stator tooth is surrounded to form an accommodating cavity for accommodating the rotor part, and at least one of the plurality of stator teeth is provided with a plurality of partial teeth. This motor adopts sectional type structure, through separately setting up stator yoke and stator tooth promptly for can take out the wire winding alone with every part during the motor wire winding, reduced the wire-wound degree of difficulty of motor effectively, solved the problem of stator wire winding difficulty among the prior art, improved the full rate of groove of motor simultaneously effectively.

Description

Three-phase permanent magnet synchronous motor and dust collector with same
Technical Field
The invention relates to the technical field of motor equipment, in particular to a three-phase permanent magnet synchronous motor and a dust collector with the same.
Background
For a small high-speed three-phase permanent magnet motor, the outer diameter of a motor rotor is usually smaller, and the inner diameter of a stator is also smaller. The problem that stator winding is difficult can be caused to the stator internal diameter is little, and the manufacturability is poor when the motor is made. The motor structure produced, processed and treated often cannot reach the production precision, and the problem of low motor efficiency is easily caused.
Disclosure of Invention
The invention mainly aims to provide a three-phase permanent magnet synchronous motor and a dust collector with the same, and aims to solve the problem that the motor is difficult to wind in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided a three-phase permanent magnet synchronous motor including: the stator yoke is of an annular structure, and a connecting part is arranged on the inner circumferential surface of the stator yoke; the stator yoke is provided with a plurality of stator teeth, the plurality of stator teeth are arranged along the inner circumferential surface of the stator yoke at intervals, the plurality of stator teeth are connected with the stator yoke through a connecting part, one end, far away from the stator yoke, of each stator tooth is surrounded to form an accommodating cavity for accommodating the rotor part, and at least one of the plurality of stator teeth is provided with a plurality of partial teeth.
Further, geometric centerlines of the tooth bodies of the plurality of partial teeth are arranged in parallel in a radial direction of the rotor portion.
Furthermore, the number of the partial teeth is two, the distance between the tooth bodies of the two partial teeth is L, wherein L is more than 0.25d and less than 0.75d, and d is the outer diameter of the rotor part.
Further, an end of at least one of the plurality of stator teeth is provided with a groove that mates with the connection portion.
Further, the depth of the groove extending in the radial direction of the rotor part is a, wherein 0.1b < a < 0.5b, b being the width of the connection section of the connection sub-teeth of the stator teeth.
Furthermore, the plane where at least one side of the groove is located and the plane where the groove bottom of the groove is located form an included angle theta, wherein theta is more than 30deg and less than 60 deg.
Furthermore, the width of the groove bottom of the groove is c, wherein c is more than 0.3m and less than 0.7m, and m is the width of the outer side of the adjacent teeth on the same stator tooth.
Further, a uniform air gap thickness is formed between the plurality of teeth and the rotor portion.
Furthermore, an end face of at least one of the plurality of partial teeth, facing the rotor part, is provided with a cutting edge structure, and the distance between the cutting edge structure and the geometric center of the rotor part is h, wherein h is more than 1.1r and less than 1.2r, and r is half of the outer diameter of the rotor part.
Further, the profile of the end surface of at least one of the plurality of partial teeth facing the rotor portion side includes: a first composition section which is a straight line section; one end of the second composition section is connected with the first composition section, and the second composition section is an arc line section; and the other end of the second component section is connected with the third component section, and the third component section is a straight line section.
Furthermore, the extension lines of the molded lines of the first assembly section and the third assembly section are collinear, and the end faces of the first assembly section and the third assembly section form a trimming structure.
Furthermore, the edge cutting structures of the sub-teeth arranged on the same stator tooth are symmetrically arranged.
Furthermore, at least one groove wall of the groove and the end surface of the stator tooth are arranged in an included angle mode, or at least one groove wall of the groove and the end surface of the stator tooth are arranged excessively through an arc surface.
Furthermore, each minute tooth is provided with a winding.
Further, the connecting portion includes a recess portion in which the stator teeth provided with the winding are disposed to be connected with the stator yoke.
Further, the bottom of the concave part is provided with a connecting bulge.
According to another aspect of the invention, a dust collector is provided, which comprises a three-phase permanent magnet synchronous motor, wherein the three-phase permanent magnet synchronous motor is the three-phase permanent magnet synchronous motor.
By applying the technical scheme of the invention, the high-speed three-phase permanent magnet synchronous motor is provided, the motor adopts a block type structure, namely, the stator yoke and the stator teeth are separately arranged, so that each part can be independently taken out for winding when the motor is wound, the difficulty of winding of the motor is effectively reduced, the problem of difficult winding of the stator in the prior art is solved, and the slot filling rate of the motor is effectively improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural view of a first embodiment of a three-phase permanent magnet synchronous machine according to the invention;
FIG. 2 shows an enlarged schematic view of the structure at A in FIG. 1;
fig. 3 shows a schematic structural view of a second embodiment of a three-phase permanent magnet synchronous machine according to the invention;
fig. 4 shows a schematic construction of a third embodiment of a three-phase permanent magnet synchronous machine according to the invention;
fig. 5 shows a schematic construction of a fourth embodiment of a three-phase permanent magnet synchronous machine according to the invention;
fig. 6 shows a schematic structural view of a fifth embodiment of a three-phase permanent magnet synchronous machine according to the invention.
Wherein the figures include the following reference numerals:
10. a stator yoke;
20. stator teeth; 21. a tooth body; 211. a trimming structure; 22. a groove;
30. a rotor portion;
41. a trimming structure; 42. a second composition segment; 43. a third group of segments;
50. a winding;
60. and a connecting projection.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.
Referring to fig. 1 to 6, according to a specific embodiment of the present application, there is provided a three-phase permanent magnet synchronous motor.
Specifically, as shown in fig. 1 and 2, the three-phase permanent magnet synchronous motor includes a stator yoke 10 and stator teeth 20. The stator yoke 10 has a ring-shaped structure, and a connection portion is provided on an inner circumferential surface of the stator yoke 10. The stator teeth 20 are plural, the plural stator teeth 20 are arranged at intervals along the inner circumferential surface of the stator yoke 10, the plural stator teeth 20 are connected with the stator yoke 10 through a connecting portion, one end of the stator teeth 20 away from the stator yoke 10 is enclosed into a receiving cavity for receiving the rotor portion 30, and at least one stator tooth 20 of the plural stator teeth 20 has plural partial teeth. Each tooth is provided with a winding 50.
In this embodiment, a high-speed three-phase permanent magnet synchronous motor is provided, and the motor adopts a block type structure, namely, the stator yoke 10 and the stator teeth 20 are separately arranged, so that each part can be independently taken out for winding during motor winding, the difficulty of motor winding is effectively reduced, the problem of difficulty in stator winding in the prior art is solved, and the slot filling rate of the motor is effectively improved.
The geometric centerlines of the tooth bodies 21 of the plurality of partial teeth are arranged in parallel in the radial direction of the rotor portion 30. The output torque of the motor can be improved by the arrangement, and the winding difficulty is reduced. Preferably, there are two partial teeth, and the distance between the tooth bodies 21 of the two partial teeth is L, wherein 0.25d < L < 0.75d, and d is the outer diameter of the rotor portion 30.
As shown in fig. 4, in order to further improve the rotation capability of the motor, a groove 22 for fitting with the connection portion may be provided at an end portion of at least one stator tooth 20 of the plurality of stator teeth 20. The groove 22 has a depth a extending in the radial direction of the rotor part 30, wherein 0.1b < a < 0.5b, b being the width of the connection section of the stator teeth 20 to which the partial teeth are connected. The plane of at least one side of the groove 22 and the plane of the groove bottom of the groove 22 form an included angle theta, wherein 30deg < theta < 60 deg. The width of the groove bottom of the groove 22 is c, wherein c is more than 0.3m and less than 0.7 m. A uniform air gap thickness is formed between the plurality of teeth and the rotor portion 30. At least one groove wall of the groove 22 and the end surface of the stator tooth 20 are arranged with an included angle, or at least one groove wall of the groove 22 and the end surface of the stator tooth 20 are arranged excessively through a circular arc surface.
As shown in fig. 3, at least one of the plurality of partial teeth has a cutting edge structure 211 on an end surface facing the rotor portion 30, and the cutting edge structure 211 is spaced from a geometric center of the rotor portion 30 by a distance h, where 1.1r < h < 1.2r, and r is a half of an outer diameter of the rotor portion 30. The arrangement can improve the performance of the motor and reduce the pulsation of the rotor.
As shown in fig. 2, the profile of the end surface of at least one of the plurality of partial teeth on the side facing the rotor portion 30 includes a first constituent segment 41, a second constituent segment 42, and a third constituent segment 43. The first composition section 41 is a straight line section. One end of the second component 42 is connected to the first component 41, and the second component 42 is an arc segment. The other end of the second component 42 is connected to a third component 43, the third component 43 being a straight line segment. The extension lines of the molded lines of the first and third constituent segments 41 and 43 are collinear, and the end faces of the first and third constituent segments 41 and 43 form the trimming structure 211. The tooth-dividing trimming structures 211 provided on the same stator tooth 20 are symmetrically arranged. The motor can further improve the performance of the motor, reduce the pulsation of the rotor and improve the practicability and reliability of the motor.
Specifically, the connecting portion includes a recess portion in which the stator teeth 20 provided with the winding 50 are disposed to be connected with the stator yoke 10. The bottom of the recess is provided with a coupling protrusion 60. This arrangement can improve the stability of the connection of the stator teeth and the stator yoke.
The three-phase permanent magnet synchronous motor in the above embodiments may also be used in the field of dust collector equipment, that is, according to another aspect of the present invention, there is provided a dust collector, including a three-phase permanent magnet synchronous motor, where the three-phase permanent magnet synchronous motor is the three-phase permanent magnet synchronous motor in the above embodiments.
Specifically, the motor that this application provided is owing to separately set up stator tooth and stator yoke for this motor has small, and the high internal diameter of speed is little, and the wire winding is simple, the manufacturability is good, has still effectively improved the motor groove full rate.
In order to ensure smaller centrifugal force, the outer diameter of the rotor of the high-speed motor is generally smaller, which results in smaller inner diameter of the stator core of the high-speed motor. For a small high-speed motor, the inner diameter of the stator of the motor is usually small, and if the motor is of a full-circle structure, the problem that winding is difficult in manufacturing the motor can be caused.
Set up motor stator into the block structure, stator tooth portion and yoke part separation, and motor tooth portion is a plurality of stator tooth portion, and every stator tooth portion includes 2 stator teeth at least. The structure can effectively reduce the difficulty of stator winding.
Wherein, the motor can be arranged in a 6-slot 4-pole structure. Fig. 1 is a cross-sectional view of a three-phase permanent magnet synchronous motor of the present application. The motor includes 3 piecemeal stator tooth portions, ring stator yoke portion and rotor. The motor rotor comprises a plurality of permanent magnets which are attached to the rotating shaft, and poles N, S of the motor permanent magnets are alternately arranged. Each stator tooth portion contains 2 stator teeth. 2 stator teeth are arranged in parallel, and the 6-slot 4-pole motor is divided into 4 parts, 3 stator tooth parts and one stator yoke part. Wherein the tooth body of 2 stator teeth on same stator tooth portion is parallel design, makes things convenient for the motor wire winding, reduces the preparation degree of difficulty. For two stator teeth on the same stator tooth section, in order to ensure a suitable slot area of the motor, the distance L between the inner sides of the yoke sections of the two stator teeth needs to be set to a suitable value. Most preferably, L is more than 0.25d and less than 0.75d, wherein d is the outer diameter of the motor rotor.
The stator teeth and the stator yoke of the motor are respectively provided with mutually matched structures for assembling the two parts. The tail end of the stator tooth part is provided with a groove used for being connected with the yoke part, and the width of the bottom of the groove is a. In order to ensure that the stator teeth and the stator yoke can be effectively connected, the structural size of the groove is constrained as follows: a is more than 0.1b and less than 0.5b, and b is the width of the bottom of the stator tooth part. The included angle theta between two side edges of the stator tooth part groove needs to have a proper value, so that the tooth part and the yoke part can be firmly connected, and the two parts are simple to assemble. Most preferably, 30deg < θ < 60 deg. For the same reason, the tooth groove bottom distance c needs to have a suitable value. Most preferably, c is more than 0.3m and less than 0.7m, and m is the width of the outer side of the adjacent teeth on the same stator tooth (20).
And further, carrying out arc section transition on sharp corners at the groove, wherein the radius of the arc section is preferably smaller than that of the stator teeth by one number of poles according to the size of the stator teeth. In order to reduce the torque pulsation of the motor, the stator tooth part is cut, and the distances h and h between the stator cutting edge and the rotor axis affect the output torque of the motor and the torque pulsation, so that an appropriate value needs to be set. Most preferably, 1.1r < h < 1.2r, where r is the outer radius of the motor rotor and r is d/2. The rotor part comprises a rotor and a rotating shaft, and the geometric center of the rotor part is the axis of the rotating shaft. As shown in FIG. 6, the grooves at the joints of the stator tooth parts and the yoke parts do not carry out arc section treatment on the sharp corners of the grooves, and the application effect of the motor is not influenced by the scheme.
The contour of the air gap part corresponding to a single stator tooth on the motor stator iron core is divided into 3 sections, the middle section is an arc with the center of circle on the axis of the rotor, the other two sections of contours on the two sides are straight lines, and the two sections of contours are formed by the setting of the trimming. In this application, the stator core of motor divide into a plurality of part, can take out the wire winding alone with every part during the motor wire winding, greatly reduced's the wire winding degree of difficulty also has the benefit to the improvement of motor groove fullness rate moreover.
According to another embodiment of the present application, as shown in fig. 5, the stator teeth adopt an overall uniform air gap structure, that is, the air gap profiles corresponding to the individual stator teeth are all circular arcs with the centers on the rotor shaft center.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition to the foregoing, it should be noted that reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (13)

1. A three-phase permanent magnet synchronous motor, comprising:
the stator yoke (10), the stator yoke (10) is the annular structure, there are interconnecting pieces on the inner peripheral surface of the said stator yoke (10);
the stator teeth (20) are multiple, the multiple stator teeth (20) are arranged at intervals along the inner circumferential surface of the stator yoke (10), the multiple stator teeth (20) are connected with the stator yoke (10) through the connecting part, one end, far away from the stator yoke (10), of each stator tooth (20) is surrounded by a containing cavity for containing a rotor part (30), and at least one stator tooth (20) in the multiple stator teeth (20) is provided with multiple partial teeth;
an end face of at least one of the plurality of partial teeth, facing to the rotor part (30), is provided with a trimming structure (211), and the distance between the trimming structure (211) and the geometric center of the rotor part (30) is h, wherein 1.1r < h < 1.2r, and r is half of the outer diameter of the rotor part (30);
the trimming structures (211) of the partial teeth arranged on the same stator tooth (20) are symmetrically arranged;
the profile of the end surface of at least one of the plurality of partial teeth on the side facing the rotor portion (30) includes:
a first composition section (41), the first composition section (41) being a straight line section;
a second component section (42), one end of the second component section (42) is connected with the first component section (41), and the second component section (42) is an arc line section;
a third component (43), the other end of the second component (42) is connected with the third component (43), and the third component (43) is a straight line segment;
the extension lines of the molded lines of the first assembly section (41) and the third assembly section (43) are collinear, and the end faces of the first assembly section (41) and the third assembly section (43) form the trimming structure (211).
2. A three-phase permanent magnet synchronous machine according to claim 1, characterized in that geometric centerlines of a plurality of the split tooth bodies (21) are arranged in parallel in a radial direction of the rotor portion (30).
3. A three-phase permanent-magnet synchronous machine according to claim 1 or 2, characterized in that there are two partial teeth, the distance between the tooth bodies (21) of the two partial teeth being L, wherein 0.25d < L < 0.75d, d being the outer diameter of the rotor part (30).
4. A three-phase permanent magnet synchronous machine according to claim 1, characterized in that the end of at least one of the stator teeth (20) of the plurality of stator teeth (20) is provided with a groove (22) cooperating with the connection.
5. A three-phase permanent-magnet synchronous machine according to claim 4, characterized in that the groove (22) has a depth a extending in the radial direction of the rotor part (30), wherein 0.1b < a < 0.5b, b being the width of the connecting section of the stator teeth (20) connecting the partial teeth.
6. A three-phase permanent-magnet synchronous machine according to claim 4, characterized in that the plane of at least one side of the slot (22) has an angle θ with the plane of the slot bottom of the slot (22), where 30deg < θ < 60 deg.
7. A three-phase permanent-magnet synchronous machine according to claim 4, characterized in that the width of the groove bottom of the groove (22) is c, where 0.3m < c < 0.7m, m being the width of the outer side of an adjacent tooth on the same stator tooth (20).
8. A three-phase permanent magnet synchronous machine according to claim 1, characterized in that a plurality of said teeth and said rotor portion (30) form a uniform air gap thickness therebetween.
9. The three-phase permanent magnet synchronous machine according to claim 4, characterized in that at least one slot wall of the slot (22) is arranged at an angle to the end surface of the stator teeth (20), or at least one slot wall of the slot (22) is arranged over the end surface of the stator teeth (20) by means of a circular arc.
10. A three-phase permanent-magnet synchronous machine according to claim 1, characterized in that a winding (50) is arranged on each of the partial teeth.
11. A three-phase permanent magnet synchronous machine according to claim 10, characterized in that the connection part comprises a recess in which the stator teeth (20) provided with the winding (50) are arranged in connection with the stator yoke (10).
12. A three-phase permanent-magnet synchronous machine according to claim 11, characterized in that the bottom of the recess is provided with a connecting projection (60).
13. A vacuum cleaner comprising a three-phase pm synchronous machine, characterized in that the three-phase pm synchronous machine is a three-phase pm synchronous machine according to any one of claims 1 to 12.
CN201911252276.8A 2019-12-09 2019-12-09 Three-phase permanent magnet synchronous motor and dust collector with same Active CN111064334B (en)

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Application Number Priority Date Filing Date Title
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CN111064334B true CN111064334B (en) 2021-01-29

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CN1881746A (en) * 2005-05-24 2006-12-20 三美电机株式会社 Single-phase blushless motor
CN101159402A (en) * 2007-11-13 2008-04-09 林小平 Single phase acynchronous motor
CN201937347U (en) * 2011-03-01 2011-08-17 中山大洋电机制造有限公司 Stator iron-core structure
CN202026172U (en) * 2011-04-28 2011-11-02 中山大洋电机制造有限公司 Novel stator punching sheet of motor

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Publication number Priority date Publication date Assignee Title
US6121711A (en) * 1993-11-08 2000-09-19 Mitsubishi Denki Kabushiki Kaisha Rotary motor and production method thereof, and laminated core and production method thereof
CN103683573B (en) * 2012-09-24 2017-03-22 珠海格力节能环保制冷技术研究中心有限公司 Permanent magnet switch magnetic flux linkage motor
CN103051098A (en) * 2013-01-22 2013-04-17 广东肇庆新广仪科技有限公司 Multi-component electric/magnetic passageway and low-cogging torque magnetic flow switching type motor
CN207426821U (en) * 2017-11-24 2018-05-29 广东美芝制冷设备有限公司 Stator module and with its magneto and compressor

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1881746A (en) * 2005-05-24 2006-12-20 三美电机株式会社 Single-phase blushless motor
CN101159402A (en) * 2007-11-13 2008-04-09 林小平 Single phase acynchronous motor
CN201937347U (en) * 2011-03-01 2011-08-17 中山大洋电机制造有限公司 Stator iron-core structure
CN202026172U (en) * 2011-04-28 2011-11-02 中山大洋电机制造有限公司 Novel stator punching sheet of motor

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