CN112737155B - Stator, motor, compressor and refrigeration plant - Google Patents

Stator, motor, compressor and refrigeration plant Download PDF

Info

Publication number
CN112737155B
CN112737155B CN202011581536.9A CN202011581536A CN112737155B CN 112737155 B CN112737155 B CN 112737155B CN 202011581536 A CN202011581536 A CN 202011581536A CN 112737155 B CN112737155 B CN 112737155B
Authority
CN
China
Prior art keywords
stator
holding portion
stator core
holding
axial direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202011581536.9A
Other languages
Chinese (zh)
Other versions
CN112737155A (en
Inventor
徐飞
邱小华
江波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Meizhi Precision Manufacturing Co Ltd
Original Assignee
Anhui Meizhi Precision Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Meizhi Precision Manufacturing Co Ltd filed Critical Anhui Meizhi Precision Manufacturing Co Ltd
Priority to CN202011581536.9A priority Critical patent/CN112737155B/en
Publication of CN112737155A publication Critical patent/CN112737155A/en
Application granted granted Critical
Publication of CN112737155B publication Critical patent/CN112737155B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/14—Stator cores with salient poles
    • H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/16—Stator cores with slots for windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

The invention relates to the technical field of motors, in particular to a stator, a motor, a compressor and refrigeration equipment. The stator comprises a stator core and a stator winding, the stator core comprises a body and a retainer, the body comprises a yoke part and a plurality of stator teeth, a stator slot is defined between every two adjacent stator teeth and the yoke part, and the body is provided with a first end face and a second end face; the holder comprises a first holding part, a second holding part and a third holding part, wherein the first holding part is arranged on the first end surface, and the second holding part is arranged on the second end surface; the third holding portion has a first end and a second end opposite to each other in the axial direction of the stator core, the first end of the third holding portion is connected to the first holding portion, and the second end of the third holding portion is connected to the second holding portion, wherein the third holding portion is located outside the stator slot. By using the stator core according to the embodiment of the invention, the vibration noise of the motor comprising the stator core can be reduced, and the efficiency of the motor comprising the stator core can be improved.

Description

Stator, motor, compressor and refrigeration plant
Technical Field
The invention relates to the technical field of motors, in particular to a stator, a motor, a compressor and refrigeration equipment.
Background
In the related art, the motor of the rotary compressor generally adopts the interior permanent magnet motor, and in recent years, with the improvement of the power density of the motor, higher requirements are provided for the vibration noise of the motor, while the prior motor cannot meet the requirement of silence more and more.
Disclosure of Invention
The present invention is based on the discovery and recognition by the inventors of the following facts and problems:
at present, a stator core of a motor is compressed by stator punching sheets and various fasteners to form a whole, for example, the stator punching sheets are connected in an axial direction by rivets. The vibration noise generated by the motor has the following reasons:
1. because the rigidity of connection between each stator punching is low, lead to stator core's rigidity low, and then lead to the motor operation including the stator to produce great vibration noise.
2. When electromagnetic force acts on the tooth shoes of the stator core, the electromagnetic force is transmitted outward along the tooth shoes, the tooth portions, and the yoke portion of the stator core, causing deformation of the outer edge of the stator core, which also causes a large noise radiation during operation of the motor including the stator.
3. In the manufacturing process of the stator, for example, when the stator is in interference fit with a shell of a compressor, assembly stress can be generated, on one hand, the assembly stress is transmitted inwards to cause the deformation of the inner diameter of a stator core, and cause the uneven clearance between the stator and a rotor of the motor, and finally cause the deterioration of vibration noise of the motor comprising the stator during operation; on the other hand, assembly stress increases core loss of the stator, eventually leading to a decrease in efficiency of a motor including the stator.
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Another aspect of the present invention provides a stator to reduce vibration noise of a motor including the stator, and to improve efficiency of the motor including the stator.
Still another aspect of the present invention provides a motor to reduce vibration noise of the motor and improve efficiency of the motor.
Still another aspect of the present invention provides a compressor to reduce vibration noise of the compressor and to improve efficiency of the compressor.
Still another aspect of the present invention provides a refrigerating apparatus to reduce vibration noise of the refrigerating apparatus and to improve efficiency of the refrigerating apparatus.
A stator according to an embodiment of the present invention includes a stator core including:
a body including a yoke portion and a plurality of stator teeth, adjacent two of the stator teeth and the yoke portion defining a stator slot therebetween, wherein the body has first and second end surfaces opposing each other in an axial direction of the stator core;
the stator winding is wound on the stator teeth of the stator core and comprises a first part, a second part and a third part, the first part and the second part are positioned outside a stator slot of the stator core, and the third part is positioned in the stator slot; and
a holder, the holder comprising:
a first holding portion provided on the first end face and a second holding portion provided on the second end face; and
a third holding portion having a first end portion and a second end portion that are opposite in an axial direction of the stator core, the first end portion of the third holding portion being connected to the first holding portion, the second end portion of the third holding portion being connected to the second holding portion, wherein the third holding portion is located outside the stator slot.
By using the stator according to the embodiment of the invention, the vibration noise of the motor comprising the stator can be reduced, and the efficiency of the motor comprising the stator can be improved.
In some embodiments, an inner side surface of the tooth shoe of the stator tooth is provided with a mounting groove, the mounting groove penetrates through the tooth shoe in an axial direction of the stator core, and at least a part of the third retaining portion is provided in the mounting groove;
or the body is provided with a mounting hole which penetrates through the body along the axial direction of the stator core, and at least one part of the third holding part is arranged in the mounting hole;
alternatively, the outer circumferential surface of the yoke portion is provided with an installation groove that penetrates the yoke portion in the axial direction of the stator core, and at least a part of the third holding portion is provided in the installation groove.
In some embodiments, the first portion of the stator winding is in direct contact with the first retention portion and the second portion of the stator winding is in direct contact with the second retention portion.
In some embodiments, the first holding portion is provided with one of a first positioning hole and a first positioning column on a first end surface of the stator core axially remote from the body, the second holding portion is provided with one of a second positioning hole and a second positioning column on a first end surface of the stator core axially remote from the body, the stator core further includes an insulating bobbin including:
the first framework is provided with the other one of the first positioning hole and the first positioning column, the first framework is arranged on the first end face of the first holding part, and the first positioning column is matched in the first positioning hole; and
the second framework is provided with the other one of the second positioning hole and the second positioning column, the second framework is arranged on the first end face of the second holding part, and the second positioning column is matched in the second positioning hole.
In some embodiments, a first avoidance slot is provided on the first holding portion, the first portion of the stator winding being located within or protruding out of the first avoidance slot;
and a second avoidance groove is formed in the second holding part, and the second part of the stator winding is positioned in the second avoidance groove or extends out of the second avoidance groove.
In some embodiments, the retainer is integrally injection molded.
In some embodiments, a thickness of one of the first and second holding portions in an axial direction of the stator core is smaller than a dimension of a corresponding one of the first and second portions in the axial direction of the stator core.
In some embodiments, one of the first holding portion and the second holding portion has a thickness of 10 mm or less in an axial direction of the stator core.
A motor according to an embodiment of the present invention includes a stator including a stator core including:
a body including a yoke portion and a plurality of stator teeth, adjacent two of the stator teeth and the yoke portion defining a stator slot therebetween, wherein the body has first and second end surfaces opposing each other in an axial direction of the stator core; and
a holder, the holder comprising:
a first holding portion provided on the first end face and a second holding portion provided on the second end face; and
a third holding portion having a first end portion and a second end portion that are opposite in an axial direction of the stator core, the first end portion of the third holding portion being connected to the first holding portion, the second end portion of the third holding portion being connected to the second holding portion, wherein the third holding portion is located outside the stator slot;
the stator winding is wound on the stator teeth of the stator core and comprises a first part, a second part and a third part, the first part and the second part are located outside a stator slot of the stator core, and the third part is located inside the stator slot.
The motor provided by the embodiment of the invention has the advantages of low vibration noise, high efficiency and the like.
In some embodiments, an inner side surface of the tooth shoe of the stator tooth is provided with a mounting groove, the mounting groove penetrates through the tooth shoe in an axial direction of the stator core, and at least a part of the third retaining portion is provided in the mounting groove;
or the body is provided with a mounting hole which penetrates through the body along the axial direction of the stator core, and at least one part of the third holding part is arranged in the mounting hole;
alternatively, the outer circumferential surface of the yoke portion is provided with an installation groove that penetrates the yoke portion in the axial direction of the stator core, and at least a part of the third holding portion is provided in the installation groove.
In some embodiments, the first portion of the stator winding is in direct contact with the first retention portion and the second portion of the stator winding is in direct contact with the second retention portion.
In some embodiments, the first holding portion is provided with one of a first positioning hole and a first positioning column on a first end surface of the stator core axially remote from the body, the second holding portion is provided with one of a second positioning hole and a second positioning column on a first end surface of the stator core axially remote from the body, the stator core further includes an insulating bobbin including:
the first framework is provided with the other one of the first positioning hole and the first positioning column, the first framework is arranged on the first end face of the first holding part, and the first positioning column is matched in the first positioning hole; and
the second framework is provided with the other one of the second positioning hole and the second positioning column, the second framework is arranged on the first end face of the second holding part, and the second positioning column is matched in the second positioning hole.
In some embodiments of the present invention, the,
the first holding part is provided with a first avoidance groove, and the first part of the stator winding is positioned in the first avoidance groove or extends out of the first avoidance groove;
and a second avoidance groove is formed in the second holding part, and the second part of the stator winding is positioned in the second avoidance groove or extends out of the second avoidance groove.
In some embodiments, a first avoidance slot is provided on the first holding portion, the first portion of the stator winding being located within or protruding out of the first avoidance slot;
and a second avoidance groove is formed in the second holding part, and the second part of the stator winding is positioned in the second avoidance groove or extends out of the second avoidance groove. In some embodiments, the retainer is integrally injection molded.
In some embodiments, a thickness of one of the first and second holding portions in an axial direction of the stator core is smaller than a dimension of a corresponding one of the first and second portions in the axial direction of the stator core.
In some embodiments, one of the first holding portion and the second holding portion has a thickness of 10 mm or less in an axial direction of the stator core.
A compressor according to an embodiment of the present invention includes a motor including a stator core, the stator core including:
a body including a yoke portion and a plurality of stator teeth, adjacent two of the stator teeth and the yoke portion defining a stator slot therebetween, wherein the body has first and second end surfaces opposing each other in an axial direction of the stator core;
the stator winding is wound on the stator teeth of the stator core and comprises a first part, a second part and a third part, the first part and the second part are positioned outside a stator slot of the stator core, and the third part is positioned in the stator slot; and
a holder, the holder comprising:
a first holding portion provided on the first end face and a second holding portion provided on the second end face; and
a third holding portion having a first end portion and a second end portion that are opposite in an axial direction of the stator core, the first end portion of the third holding portion being connected to the first holding portion, the second end portion of the third holding portion being connected to the second holding portion, wherein the third holding portion is located outside the stator slot.
The compressor provided by the embodiment of the invention has the advantages of low vibration noise, high efficiency and the like.
In some embodiments, an inner side surface of the tooth shoe of the stator tooth is provided with a mounting groove, the mounting groove penetrates through the tooth shoe in an axial direction of the stator core, and at least a part of the third retaining portion is provided in the mounting groove;
or the body is provided with a mounting hole which penetrates through the body along the axial direction of the stator core, and at least one part of the third holding part is arranged in the mounting hole;
alternatively, the outer circumferential surface of the yoke portion is provided with an installation groove that penetrates the yoke portion in the axial direction of the stator core, and at least a part of the third holding portion is provided in the installation groove.
In some embodiments, the first portion of the stator winding is in direct contact with the first retention portion and the second portion of the stator winding is in direct contact with the second retention portion.
In some embodiments, the first holding portion is provided with one of a first positioning hole and a first positioning column on a first end surface of the stator core axially remote from the body, the second holding portion is provided with one of a second positioning hole and a second positioning column on a first end surface of the stator core axially remote from the body, the stator core further includes an insulating bobbin including:
the first framework is provided with the other one of the first positioning hole and the first positioning column, the first framework is arranged on the first end face of the first holding part, and the first positioning column is matched in the first positioning hole; and
the second framework is provided with the other one of the second positioning hole and the second positioning column, the second framework is arranged on the first end face of the second holding part, and the second positioning column is matched in the second positioning hole.
In some embodiments, a first avoidance slot is provided on the first holding portion, the first portion of the stator winding being located within or protruding out of the first avoidance slot;
and a second avoidance groove is formed in the second holding part, and the second part of the stator winding is positioned in the second avoidance groove or extends out of the second avoidance groove.
In some embodiments, the retainer is integrally injection molded.
In some embodiments, a thickness of one of the first and second holding portions in an axial direction of the stator core is smaller than a dimension of a corresponding one of the first and second portions in the axial direction of the stator core.
In some embodiments, one of the first holding portion and the second holding portion has a thickness of 10 mm or less in an axial direction of the stator core.
The refrigeration equipment according to the embodiment of the invention comprises a compressor, wherein the compressor comprises a motor, the motor comprises a stator, the stator comprises a stator iron core, and the stator iron core comprises:
a body including a yoke portion and a plurality of stator teeth, adjacent two of the stator teeth and the yoke portion defining a stator slot therebetween, wherein the body has first and second end surfaces opposing each other in an axial direction of the stator core; the stator winding is wound on the stator teeth of the stator core and comprises a first part, a second part and a third part, the first part and the second part are positioned outside a stator slot of the stator core, and the third part is positioned in the stator slot; and
a holder, the holder comprising:
a first holding portion provided on the first end face and a second holding portion provided on the second end face; and
a third holding portion having a first end portion and a second end portion that are opposite in an axial direction of the stator core, the first end portion of the third holding portion being connected to the first holding portion, the second end portion of the third holding portion being connected to the second holding portion, wherein the third holding portion is located outside the stator slot.
The refrigeration equipment provided by the embodiment of the invention has the advantages of low vibration noise, high efficiency and the like.
In some embodiments, an inner side surface of the tooth shoe of the stator tooth is provided with a mounting groove, the mounting groove penetrates through the tooth shoe in an axial direction of the stator core, and at least a part of the third retaining portion is provided in the mounting groove;
or the body is provided with a mounting hole which penetrates through the body along the axial direction of the stator core, and at least one part of the third holding part is arranged in the mounting hole;
alternatively, the outer circumferential surface of the yoke portion is provided with an installation groove that penetrates the yoke portion in the axial direction of the stator core, and at least a part of the third holding portion is provided in the installation groove.
In some embodiments, the first portion of the stator winding is in direct contact with the first retention portion and the second portion of the stator winding is in direct contact with the second retention portion.
In some embodiments, the first holding portion is provided with one of a first positioning hole and a first positioning column on a first end surface of the stator core axially remote from the body, the second holding portion is provided with one of a second positioning hole and a second positioning column on a first end surface of the stator core axially remote from the body, the stator core further includes an insulating bobbin including:
the first framework is provided with the other one of the first positioning hole and the first positioning column, the first framework is arranged on the first end face of the first holding part, and the first positioning column is matched in the first positioning hole; and
the second framework is provided with the other one of the second positioning hole and the second positioning column, the second framework is arranged on the first end face of the second holding part, and the second positioning column is matched in the second positioning hole.
In some embodiments, a first avoidance slot is provided on the first holding portion, the first portion of the stator winding being located within or protruding out of the first avoidance slot;
and a second avoidance groove is formed in the second holding part, and the second part of the stator winding is positioned in the second avoidance groove or extends out of the second avoidance groove.
In some embodiments, the retainer is integrally injection molded.
In some embodiments, a thickness of one of the first and second holding portions in an axial direction of the stator core is smaller than a dimension of a corresponding one of the first and second portions in the axial direction of the stator core.
In some embodiments, one of the first holding portion and the second holding portion has a thickness of 10 mm or less in an axial direction of the stator core.
Drawings
Fig. 1 is a schematic structural view of a stator core of a stator according to one embodiment of the present invention (insulation bobbin and lead-out wire are not shown).
Fig. 2 is a structural view of another perspective of a stator core of a stator according to an embodiment of the present invention (the insulating bobbin and the lead wires are not shown).
Fig. 3 is a structural view of a body of a stator core of a stator according to one embodiment of the present invention.
Fig. 4 is a plan view of a body of a stator core of a stator according to one embodiment of the present invention.
Fig. 5 is a schematic structural view of a stator according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of a stator according to an embodiment of the present invention (stator windings are not shown).
Fig. 7 is a schematic structural view of another perspective of a stator (stator windings not shown) according to an embodiment of the invention.
Fig. 8 is a schematic structural view of the first skeleton in fig. 5.
Fig. 9 is a schematic structural view of the second bobbin in fig. 5.
Fig. 10 is a schematic structural view of a stator according to another embodiment of the present invention.
Fig. 11 is another perspective structural view of a stator according to another embodiment of the present invention.
Fig. 12 is a structural view of a body of the stator core of fig. 10.
Fig. 13 is a structural view of a body of a stator core of a stator according to still another embodiment of the present invention.
Fig. 14 is a schematic structural view of a compressor according to an embodiment of the present invention.
Reference numerals: a stator 1; a stator core 10; a body 110; mounting grooves 1103; mounting holes 1104; a yoke 101; an outer peripheral surface 1011; stator teeth 102; a tooth 1021; tooth shoes 1022; medial side 1023; a stator slot 103; a first end face 104; a second end face 105; a stator winding 20; a first portion 201; a second portion 202; a third portion 203; a holder 30; a first holding portion 301; a first end face 3011; a first positioning hole 3012; a first avoidance groove 3013; a second holding portion 302; a first end face 3021; a second positioning hole 3022; a second avoidance groove 3023; a third holding portion 303; a first end portion 3031; a second end portion 3032; an outlet 40; an insulating skeleton 120; a first skeleton 121; first end 1211 (11); a first positioning post 1212; a second skeleton 122; a second end face 1221 (12); a second positioning post 1222; a compressor 100; a motor 1000; a housing 1001; a rotor 1002; a crankshaft 1003; a main bearing 1004; a cylinder 1005; a piston 1006; the sub-bearing 1007.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1 to 13, a stator 1 according to an embodiment of the present invention includes a stator core 10 and a stator winding 20, the stator core 10 includes a body 110 and a holder 30, the body 110 includes a yoke portion 101 and a plurality of stator teeth 102, a stator slot 103 is defined between adjacent two stator teeth 102 and the yoke portion 101, and the body 110 has a first end face 104 and a second end face 105 that are opposite in an axial direction thereof.
The stator winding 20 is wound on the stator teeth 102 of the stator core 10, the stator winding 20 includes a first portion 201, a second portion 202, and a third portion 203, the first portion 201 and the second portion 202 are located outside the stator slot 103 of the stator core 10, and the third portion 203 is located inside the stator slot 103.
The holder 30 includes a first holding portion 301, a second holding portion 302, and a third holding portion 303, the first holding portion 301 being provided on the first end face 104, the second holding portion 302 being provided on the second end face 105. The third holding portion 303 has a first end portion 3031 and a second end portion 3032 opposite in the axial direction of the stator core 10, the first end portion 3031 of the third holding portion 303 is connected to the first holding portion 301, the second end portion 3032 of the third holding portion 303 is connected to the second holding portion 302, and the third holding portion 303 is located outside the stator slot 103.
In the prior art, a stator core is formed by compressing stator laminations and various fasteners into a whole, for example, the stator laminations are connected in an axial direction by rivets. Firstly, the rigidity of the stator core is low due to the low connection rigidity between the stator punching sheets, and further, a motor including the stator generates large vibration noise when running. Secondly, when electromagnetic force acts on the tooth shoes of the stator core, the electromagnetic force is transmitted outward along the tooth shoes, the tooth portions, and the yoke portion of the stator core, causing deformation of the outer edge of the stator core, which also causes large noise radiation during operation of the motor including the stator. Finally, assembly stress can be generated during the manufacturing process of the stator, for example, when the stator is in interference fit with a shell of a compressor, on one hand, the assembly stress is transmitted inwards to cause the deformation of the inner diameter of a stator core, and cause the non-uniformity of a gap between the stator and a rotor of the motor, and finally cause the deterioration of vibration noise of the motor comprising the stator during operation; on the other hand, assembly stress increases core loss of the stator, eventually leading to a decrease in efficiency of a motor including the stator.
The stator core 10 according to the embodiment of the present invention is configured such that the holder 30 is integrated by providing the first holding portion 301 on the first end surface 104 of the body 110 and the second holding portion 302 on the second end surface 105, and the first holding portion 301 and the second holding portion 302 are connected by the third holding portion 303. Therefore, the plurality of stator laminations of the stator core 10 can be clamped (pressed) in the axial direction of the stator core 10 by the first holding portion 301 and the second holding portion 302, so that the connection rigidity of the plurality of stator laminations of the stator core 10 can be remarkably improved, and the rigidity of the stator core 10 can be remarkably improved.
Thus, not only vibration noise generated due to low connection rigidity of the plurality of stator segments of the stator core 10, but also noise radiation generated due to deformation of the yoke portion 101 by electromagnetic force (e.g., deformation of the outer circumferential surface of the stator core 10) and vibration noise generated due to deformation caused by assembling the stator 1 (e.g., deformation of the inner diameter of the stator core 10, i.e., deformation of the inner circumferential surface of the stator core 10) can be significantly reduced or even eliminated.
Furthermore, by significantly improving the rigidity of the stator core 10, the deformation of the stator core 10 can be significantly reduced or even eliminated, and thus the stress core loss due to the deformation of the stator core 10 can be significantly reduced or even eliminated, so that the efficiency of the motor including the stator core 10 can be significantly improved.
Therefore, by using the stator 1 according to the embodiment of the present invention, it is possible to reduce vibration noise of the motor including the stator 1 and improve efficiency of the motor including the stator 1.
In some embodiments, the first end face 3011 of the first holding portion 301, which is away from the body 110 in the axial direction of the stator core 10, is provided with one of a first positioning hole 3012 and a first positioning column, and the first end face 3021 of the second holding portion 302, which is away from the body 110 in the axial direction of the stator core 10, is provided with one of a second positioning hole 3022 and a second positioning column.
The stator core 10 further includes an insulating bobbin 120, and the insulating bobbin 120 includes a first bobbin 121 and a second bobbin 122. The first frame 121 is provided with the other of the first positioning hole and the first positioning post 1212, the first frame 121 is provided on the first end surface 3011 of the first holding portion 301, and the first positioning post 1212 is fitted in the first positioning hole 3012. The second frame 122 is provided with the other one of the second positioning hole and the second positioning post 1222, the second frame 122 is provided on the first end face 3021 of the second holding portion 302, and the second positioning post 1222 is fitted in the second positioning hole 3022.
By providing the insulating frame 120 on the body 110, the insulating performance of the stator core 10 can be improved, and thus the safety of the motor can be improved.
For example, the first holding portion 301 is disposed above the second holding portion 302, one of the first positioning hole 3012 and the first positioning post is provided on the first end surface 3011 (upper end surface) of the first holding portion 301, and one of the second positioning hole 3022 and the second positioning post is provided on the first end surface 3021 (lower end surface) of the second holding portion. The axial direction of the stator core 10 is indicated by an arrow a in fig. 1, and the vertical direction is indicated by an arrow B in fig. 3.
As shown in fig. 1 to 13, a stator 1 according to an embodiment of the present invention includes a stator core 10, a stator winding 20, and a holder 30.
As shown in fig. 5, 6, 7, 10, and 11, the stator core 10 includes a body 110 and an insulating frame 120, the body 110 having a first end face 104 and a second end face 105 opposed in an axial direction of the stator core 10. The insulating bobbin 120 has a first end 1211 and a second end 1221 opposed to each other in the axial direction of the stator core 10, and the first end 1211 and the second end 1221 of the insulating bobbin 120 are opposed to each other in the axial direction of the stator core 10. That is, the stator core 10 has a first end face 11 and a second end face 12 opposed in the axial direction thereof. The first end 1211 of the insulating bobbin 120 is a first end 11 of the stator core 10, and the second end 1221 of the insulating bobbin 120 is a second end 12 of the stator core 10.
As shown in fig. 3 and 4, the body 110 includes a yoke portion 101 and a plurality of stator teeth 102, and each stator tooth 102 includes a tooth portion 1021 and a tooth shoe portion 1022. Alternatively, a plurality of stator teeth 102 are provided on the yoke portion 101 at intervals in the circumferential direction of the stator core 10. A stator slot 103 is defined between two adjacent stator teeth 102 and the yoke 101, i.e., the stator core 10 has a plurality of stator slots 103.
As shown in fig. 5, 10 and 11, the stator winding 20 is wound on the insulating bobbin 120, and the stator winding 20 includes a first portion 201, a second portion 202 and a third portion 203. Wherein the first portion 201 and the second portion 202 are located outside the stator slot 103 and the third portion 203 is located inside the stator slot 103. For example, the first portion 201 protrudes upward out of the stator slot 103, the second portion 202 protrudes downward out of the stator slot 103, the first end face 104 is an upper surface of the stator core 10 (the body 110), the second end face 105 is a lower surface of the stator core 10 (the body 110), and an axial direction of the stator core 10 coincides with an up-down direction.
As shown in fig. 1, 2, 5, 6, 7, 10, and 11, the holder 30 includes a first holding portion 301, a second holding portion 302, and a third holding portion 303, the first holding portion 301 being provided on the first end surface 104, and the second holding portion 302 being provided on the second end surface 105. The third holding portion 303 has a first end portion 3031 and a second end portion 3032 opposite in the axial direction of the stator core 10, the first end portion 3031 of the third holding portion 303 is connected to the first holding portion 301, and the second end portion 3032 of the third holding portion 303 is connected to the second holding portion 302.
For example, the first holding portion 301 is located above the second holding portion 302, the first holding portion 301 is provided on the upper end surface (first end surface 104) of the body 110, and the second holding portion 302 is provided on the lower end surface (second end surface 105) of the body 110. The upper end of the third holding portion 303 is connected to the first holding portion 301, and the lower end of the third holding portion 303 is connected to the second holding portion 302.
In some embodiments, the retainer 30 is integrally injection molded, i.e., the first retaining portion 301, the second retaining portion 302, and the third retaining portion 303 are integrally injection molded. The integral injection molding of the retainer 30 is beneficial to further improving the connection rigidity of the plurality of stator laminations of the stator core 10, thereby improving the rigidity of the stator core 10. Accordingly, not only vibration noise due to low rigidity of the stator core 10 but also vibration noise due to deformation of the stator core 10 can be significantly reduced or even eliminated, and stress core loss due to deformation of the stator core 10 can be significantly reduced or even eliminated, so that efficiency of the motor including the stator 1 can be significantly improved.
Since the resin material is mixed by an optimum compounding ratio of the specific material, it is possible to achieve a more desirable material rigidity and injection flow effect, and therefore, it is preferable that the holder 30 is a resin material.
Specifically, the stator core 10 may be formed by stacking a plurality of stator laminations, the holder 30 may be integrally injection-molded on the stator core 10, the insulating bobbin 120 may be mounted on the body 110, and the stator winding 20 may be wound on the insulating bobbin 120.
In some embodiments, the first portion 201 of the stator winding 20 is in direct contact with the first retention portion 301 and the second portion 202 of the stator winding 20 is in direct contact with the second retention portion 302. In other words, the stator 1 does not include an insulating skeleton, and the stator winding 20 is wound directly on the stator teeth 102.
As shown in fig. 4, in some embodiments, an installation groove 1103 is formed on an outer circumferential surface 1011 of the yoke portion 101, the installation groove 1103 penetrates the yoke portion 101 in the axial direction of the stator core 10, and at least a portion of the third retaining portion 303 is disposed in the installation groove 1103.
As shown in fig. 13, in some embodiments, the body 110 has a mounting hole 1104, the mounting hole 1104 penetrates the body 110 in the axial direction of the stator core 10, and at least a part of the third retaining portion 303 is provided in the mounting hole 1104.
As shown in fig. 12, in some embodiments, the inner side surfaces 1023 of the tooth shoes 1022 of the stator teeth 102 are provided with mounting grooves 1103, the mounting grooves 1103 penetrate the tooth shoes 1022 in the axial direction of the stator core 10, and at least a portion of the third holding portion 303 is provided in the mounting grooves 1103.
Of course, the mounting grooves 1103 may be provided on the inner side surfaces 1023 of the tooth shoes 1022 of the stator teeth 102 and the outer peripheral surface 1011 of the yoke 101, and the third holding portions 303 may be provided in the respective mounting grooves 1103. In other words, the mounting grooves 1103 include two types, one type is provided on the inner side surface 1023 of the tooth shoe 1022 of the stator tooth 102 and the other type is provided on the outer circumferential surface 1011 of the yoke 101, and correspondingly, the third retaining portion 303 includes two types, one type is provided in the mounting groove 1103 of the inner side surface 1023 of the tooth shoe 1022 and the other type is provided in the mounting groove 1103 of the outer circumferential surface 1011 of the yoke 101.
Here, inward refers to a direction adjacent to the central axis of the stator core 10 on a plane perpendicular to the axial direction of the stator core 10, and outward refers to a direction away from the central axis of the stator core 10 on a plane perpendicular to the axial direction of the stator core 10. The inward and outward directions are indicated by arrows C in fig. 4. When the stator 1 is assembled with the rotor, the inner edge is adjacent to the rotor with respect to the outer edge.
By providing the mounting groove 1103 on the inner side surface 1023 of the tooth shoe 1022 of the stator tooth 102, or the mounting hole 1104 on the yoke portion 101, or by providing the mounting groove 1103 on both the inner side surface 1023 of the tooth shoe 1022 of the stator tooth 102 and the outer peripheral surface 1011 of the yoke portion 101, or by providing the mounting groove 1103 only on the outer peripheral surface 1011 of the yoke portion 101, and by providing at least a part of the third holding portion 303 in the mounting groove 1103 or the mounting hole 1104, the thickness of the third holding portion 303 can be increased in the inward and outward direction, and the rigidity of the stator core 10 can be improved. Accordingly, not only vibration noise due to low rigidity of the stator core 10 but also vibration noise due to deformation of the stator core 10 can be significantly reduced or even eliminated, and stress core loss due to deformation of the stator core 10 can be significantly reduced or even eliminated, so that efficiency of the motor including the stator 1 can be significantly improved.
As shown in fig. 1 and 2, in some embodiments, a first avoiding groove 3013 is formed on the first holding portion 301, a second avoiding groove 3023 is formed on the second holding portion 302, the first portion 201 of the stator winding 20 is located in the first avoiding groove 3013 or extends out of the first avoiding groove 3013, and the second portion 202 of the stator winding 20 is located in the second avoiding groove 3023 or extends out of the second avoiding groove 3023. In other words, the first portion 201 and the second portion 202 of the stator winding 20 are both exposed out of the holder 30.
In some embodiments, the holder 30 further includes a plurality of fourth holding portions, at least a part of which is provided in the plurality of stator slots 103 in one-to-one correspondence, wherein each of the fourth holding portions has a first end portion and a second end portion that are opposite in the axial direction of the stator core 10, the first end portion of each of the fourth holding portions is connected to the first holding portion 301, and the second end portion of each of the fourth holding portions is connected to the second holding portion 302.
On the basis that the third holding portion 303 is connected to the first holding portion 301 and the second holding portion 302, the fourth holding portion is connected to the first holding portion 301 and the second holding portion 302, which is beneficial to better clamping the plurality of stator laminations of the stator core 10 by the first holding portion 301 and the second holding portion 302 along the axial direction of the stator core 10, so that the connection rigidity of the plurality of stator laminations of the stator core 10 can be remarkably improved, and the rigidity of the stator core 10 is further remarkably improved. Accordingly, not only vibration noise due to low rigidity of the stator core 10 but also vibration noise due to deformation of the stator core 10 can be significantly reduced or even eliminated, and stress core loss due to deformation of the stator core 10 can be significantly reduced or even eliminated, so that efficiency of the motor including the stator 1 can be significantly improved.
In some embodiments, the thickness of one of the first and second holding portions 301 and 302 in the axial direction of the stator core 10 is smaller than the dimension of the corresponding one of the first and second portions 201 and 202 in the axial direction of the stator core 10.
Since the end portion of the stator winding 20 close to the lead-out wire 40 generally has a higher winding temperature, by the thickness of one of the first holding portion 301 and the second holding portion 302 in the axial direction of the stator core 10 being smaller than the dimension of the corresponding one of the first portion 201 and the second portion 202 in the axial direction of the stator core 10, it is possible to facilitate heat dissipation from the end portion of the stator winding 20 close to the lead-out wire 40, and to avoid overheating of the end portion of the stator winding 20 close to the lead-out wire 40 to affect reliable operation of the motor. Wherein the respective one of the first portion 201 and the second portion 202 of the stator winding 20 is close to the lead-out wire 40, i.e. the respective one of the first portion 201 and the second portion 202 of the stator winding 20 comprises the end of the stator winding 20 close to the lead-out wire 40. The respective one of the first portion 201 and the second portion 202 of the stator winding 20 refers to: one of the first portion 201 and the second portion 202 adjacent to the one of the first holding portion 301 and the second holding portion 302.
In some embodiments, the thickness of one of the first holding portion 301 and the second holding portion 302 in the axial direction of the stator core 10 is 10 mm or less. The thickness of the one of the first holding portion 301 and the second holding portion 302 can thereby be further reduced, so that the end portion of the stator winding 20 near the lead-out wires 40 can be more effectively radiated to further improve the reliability of the motor including the stator 1.
As shown in fig. 14, the present invention also provides a motor 1000. The motor 1000 according to an embodiment of the present invention includes the stator 1 according to the above-described embodiment of the present invention. Therefore, the motor 1000 according to the embodiment of the present invention has the advantages of low vibration noise, high efficiency, and the like.
Those skilled in the art will appreciate that the motor 1000 according to an embodiment of the present invention further includes a rotor 1002. With the number of stator slots 104 of the stator 1 being Z, the number of pole pairs of the rotor 1002 being P, the ratio of Z to 2P is equal to 3/2 or 6/5 or 6/7. The proportional relation between the number Z of the stator slots 104 and the number P of the pole pairs of the rotor is defined, and then the pole slot matching of the motor 1000 is defined, wherein when the number P of the pole pairs of the rotor 1002 is defined, then the number of the pole pairs of the rotor 1002 is 2P, that is, the motor 1000 can be a 6-pole 9-slot motor, a 4-pole 6-slot motor, an 8-pole 12-slot motor, a 10-pole 12-slot motor, and the motor 1000 of the above type can effectively reduce armature iron loss, promote magnetic flux, and further promote the efficiency of the motor 1000.
Preferably, the inner diameter of the stator core 10 is Di, the rated torque of the motor 1000 is T, and the unit volume torque of the rotor 1002 is TPV, which satisfy the following relation: t × Di of 5.18 × 10-7 ≤-3×TPV-1≤1.17×10-6，5kN·m·m-3≤TPV≤45kN·m·m-3(ii) a The rated torque T of the motor 1000 is expressed in N · m, the inner diameter Di of the stator core 10 is expressed in mm, and the unit volume torque TPV of the rotor 1002 is expressed in kN · m ″-3。
In this embodiment, the rated torque of the motor 1000 is T, the inner diameter of the stator core 10 is Di, and the torque per unit volume of the rotor 1002 is TPV, and satisfies the condition that T × Di is not less than 5.18 × 10-7-3×TPV-1≤1.17×10-6The value range of the unit volume torque TPV is 5 kN.m.m-3≤TPV≤45kN·m·m-3The value range of the combined variables of the rated torque T of the motor 1000, the inner diameter Di of the stator core 10 and the unit volume torque TPV of the rotor 1002 is limited, so that the motor 1000 can meet the power requirement of the compressor, and in addition, the motor 1000 and the compressor 100 adopting the rotor 1002 can effectively reduce the magnetic leakage of the rotor 1002, increase the utilization rate of the permanent magnet and improve the efficiency of the motor 1000.
Preferably, a side of the plurality of tooth shoe portions 103 facing the rotor encloses an inner circumferential surface of the stator 1, and a ratio of a diameter of the inner circumferential surface of the stator 1 to a diameter of an outer edge of the stator core 10 is greater than 0.5 and equal to or less than 0.58.
In this embodiment, the ratio of the diameter of the inner peripheral surface of the stator 1 to the diameter of the outer edge of the stator core 10 is greater than 0.5 and equal to or less than 0.57 so that the motor has high cost performance.
The present invention also provides a compressor 100. The compressor 100 according to the embodiment of the present invention includes the motor 1000 according to the above-described embodiment of the present invention.
Therefore, the compressor 100 according to the embodiment of the present invention has the advantages of low vibration noise, high efficiency, etc.
It will be understood by those skilled in the art that the compressor 100 according to the embodiment of the present invention further includes a housing 1001, a crankshaft 1022, a main bearing 102, a cylinder 103, a piston 104, and a sub-bearing 105, as shown in fig. 11. The components of the housing, crankshaft 1022, main bearing 102, cylinder 103, piston 104, and secondary bearing 105 may be known and are not relevant to the inventive aspects of the present application and therefore will not be described in detail.
The invention also provides refrigeration equipment. The refrigerating apparatus according to the embodiment of the present invention includes the compressor 100 according to the above-described embodiment of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A stator, comprising:
a body including a yoke portion and a plurality of stator teeth, adjacent two of the stator teeth and the yoke portion defining a stator slot therebetween, wherein the body has first and second end surfaces opposing each other in an axial direction of a stator core;
the stator winding is wound on the stator teeth of the stator core and comprises a first part, a second part and a third part, the first part and the second part are positioned outside a stator slot of the stator core, and the third part is positioned in the stator slot; and
a holder, the holder comprising:
a first holding portion provided on the first end face and a second holding portion provided on the second end face; and
a third holding portion having a first end portion and a second end portion that are opposite in an axial direction of the stator core, the first end portion of the third holding portion being connected to the first holding portion, the second end portion of the third holding portion being connected to the second holding portion, wherein the third holding portion is located outside the stator slot;
the first holding portion keep away from in the axial of stator core the first terminal surface of body is equipped with one in first locating hole and the first reference column, the second holding portion keep away from in the axial of stator core the first terminal surface of body is equipped with one in second locating hole and the second reference column, stator core further includes insulating skeleton, insulating skeleton includes:
the first framework is provided with the other one of the first positioning hole and the first positioning column, the first framework is arranged on the first end face of the first holding part, and the first positioning column is matched in the first positioning hole; and
the second framework is provided with the other one of the second positioning hole and the second positioning column, the second framework is arranged on the first end face of the second holding part, and the second positioning column is matched in the second positioning hole.
2. The stator according to claim 1,
an installation groove is formed in the inner side surface of each tooth shoe of each stator tooth, the installation groove penetrates through the tooth shoes along the axial direction of the stator core, and at least one part of the third retaining part is arranged in the installation groove;
or the body is provided with a mounting hole which penetrates through the body along the axial direction of the stator core, and at least one part of the third holding part is arranged in the mounting hole;
alternatively, the outer circumferential surface of the yoke portion is provided with an installation groove that penetrates the yoke portion in the axial direction of the stator core, and at least a part of the third holding portion is provided in the installation groove.
3. The stator according to claim 1 or 2,
the first portion of the stator winding is in direct contact with the first retaining portion and the second portion of the stator winding is in direct contact with the second retaining portion.
4. A stator according to claim 1 or 2, wherein the first holding portion is provided with a first avoidance slot, the first portion of the stator winding being located in or protruding out of the first avoidance slot;
and a second avoidance groove is formed in the second holding part, and the second part of the stator winding is positioned in the second avoidance groove or extends out of the second avoidance groove.
5. A stator according to claim 1 or 2, wherein the holder is integrally injection moulded.
6. The stator according to claim 1 or 2, characterized in that a thickness of one of the first holding portion and the second holding portion in an axial direction of the stator core is smaller than a dimension of a corresponding one of the first portion and the second portion in the axial direction of the stator core.
7. The stator according to claim 6, wherein one of the first holding portion and the second holding portion has a thickness of 10 mm or less in an axial direction of the stator core.
8. An electrical machine comprising a stator according to any one of claims 1-7.
9. A compressor, characterized by comprising an electric motor, said electric motor being according to claim 8.
10. A refrigeration apparatus, comprising a compressor, the compressor being in accordance with claim 9.
CN202011581536.9A 2020-12-28 2020-12-28 Stator, motor, compressor and refrigeration plant Active CN112737155B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011581536.9A CN112737155B (en) 2020-12-28 2020-12-28 Stator, motor, compressor and refrigeration plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011581536.9A CN112737155B (en) 2020-12-28 2020-12-28 Stator, motor, compressor and refrigeration plant

Publications (2)

Publication Number Publication Date
CN112737155A CN112737155A (en) 2021-04-30
CN112737155B true CN112737155B (en) 2022-03-01

Family

ID=75606630

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011581536.9A Active CN112737155B (en) 2020-12-28 2020-12-28 Stator, motor, compressor and refrigeration plant

Country Status (1)

Country Link
CN (1) CN112737155B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113872351B (en) * 2021-10-14 2022-10-18 广东美芝制冷设备有限公司 Stator structure, motor structure, compressor structure and refrigeration plant
CN113872350B (en) * 2021-10-14 2023-08-01 广东美芝制冷设备有限公司 Stator structure, motor structure, compressor structure and refrigeration equipment
CN118100477B (en) * 2024-04-22 2024-06-21 广东美芝制冷设备有限公司 Stator structure, compressor and refrigeration equipment

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08265995A (en) * 1995-03-17 1996-10-11 Yaskawa Electric Corp Stator for mold motor
CN203911601U (en) * 2014-04-08 2014-10-29 珠海凯邦电机制造有限公司 Stator punching sheet, stator core and motor
CN104638785A (en) * 2015-02-13 2015-05-20 广东威灵电机制造有限公司 Stator iron core component, stator and permanent magnet motor
EP2940831A1 (en) * 2012-12-28 2015-11-04 Top Co., Ltd. Rotary machine, and electric vehicle
WO2018116415A1 (en) * 2016-12-21 2018-06-28 三菱電機株式会社 Stator core piece and rotating electric machine
CN208285085U (en) * 2018-06-29 2018-12-25 珠海格力节能环保制冷技术研究中心有限公司 Motor stator component, rotor component, motor, compressor
CN109950987A (en) * 2017-12-21 2019-06-28 扬州千帆工业设备制造有限公司 A kind of stator end plate
CN211405625U (en) * 2020-03-03 2020-09-01 威灵（芜湖）电机制造有限公司 Stator core, stator, motor and household appliance

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4916730B2 (en) * 2006-02-07 2012-04-18 アスモ株式会社 Stator manufacturing method and stator
CN101741153B (en) * 2008-11-10 2013-07-31 株式会社日立产机系统 Armature core, motor and axial gap electrical rotating machine using same and method for making same
US11088597B2 (en) * 2017-12-28 2021-08-10 Spal Automotive S.R.L. Electric machine
DE102019200023A1 (en) * 2019-01-03 2020-07-09 Robert Bosch Gmbh Stator for an electrical machine, an electrical machine and method for producing such a stator

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08265995A (en) * 1995-03-17 1996-10-11 Yaskawa Electric Corp Stator for mold motor
EP2940831A1 (en) * 2012-12-28 2015-11-04 Top Co., Ltd. Rotary machine, and electric vehicle
CN203911601U (en) * 2014-04-08 2014-10-29 珠海凯邦电机制造有限公司 Stator punching sheet, stator core and motor
CN104638785A (en) * 2015-02-13 2015-05-20 广东威灵电机制造有限公司 Stator iron core component, stator and permanent magnet motor
WO2018116415A1 (en) * 2016-12-21 2018-06-28 三菱電機株式会社 Stator core piece and rotating electric machine
CN109950987A (en) * 2017-12-21 2019-06-28 扬州千帆工业设备制造有限公司 A kind of stator end plate
CN208285085U (en) * 2018-06-29 2018-12-25 珠海格力节能环保制冷技术研究中心有限公司 Motor stator component, rotor component, motor, compressor
CN211405625U (en) * 2020-03-03 2020-09-01 威灵（芜湖）电机制造有限公司 Stator core, stator, motor and household appliance

Also Published As

Publication number Publication date
CN112737155A (en) 2021-04-30

Similar Documents

Publication Publication Date Title
CN112737155B (en) Stator, motor, compressor and refrigeration plant
US20100141059A1 (en) Capacitor motor and process for producing the same
US9362793B2 (en) Stator for electric rotary machine
KR101848922B1 (en) Terminal connection structure for Motor
KR101528026B1 (en) Permanent magnet motor
KR20120128890A (en) Stator Having Waterproof Structure, Water Pump Motor and Water Pump Using the Same
CN106712329B (en) Motor and water pump with same
CN107707043B (en) Stator module, motor and electronic pump
CN112564324B (en) Stator core, stator, motor, compressor and refrigeration plant
CN106712346B (en) Motor and water pump with same
CN214479873U (en) Stator, motor, compressor and refrigeration plant
CN112564323B (en) Stator core, stator, motor, compressor and refrigeration plant
CN112564322B (en) Stator core, stator, motor, compressor and refrigeration equipment
CN112737156B (en) Stator, motor, compressor and refrigeration equipment
CN214590793U (en) Stator, motor, compressor and refrigeration plant
US9966814B2 (en) Motor having a fan cover that is latched to a foot plate, pump, and method for manufacturing the motor
CN110797994A (en) Permanent magnet motor and washing machine with same
CN115085430A (en) Electric machine
CN114243982A (en) Stator module and motor
CN112737159A (en) Stator, motor, compressor and refrigeration plant
EP3413437A1 (en) Stator assembly, and, motor and electric pump having the same
CN218498893U (en) Motor, compressor and refrigeration plant
KR100901305B1 (en) Rotor or Armature assembly for DC motor
CN219576799U (en) DC motor
CN218771494U (en) Motor assembly

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant