CN113346640A - Inner stator iron core, stator, motor and electric product - Google Patents
Inner stator iron core, stator, motor and electric product Download PDFInfo
- Publication number
- CN113346640A CN113346640A CN202010135852.7A CN202010135852A CN113346640A CN 113346640 A CN113346640 A CN 113346640A CN 202010135852 A CN202010135852 A CN 202010135852A CN 113346640 A CN113346640 A CN 113346640A
- Authority
- CN
- China
- Prior art keywords
- stator core
- inner stator
- motor
- teeth
- present application
- 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.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 239000007769 metal material Substances 0.000 claims description 8
- 239000012212 insulator Substances 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 7
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241001417527 Pempheridae Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
Abstract
The embodiment of the application provides an inner stator iron core, stator, motor and electric product, the inner stator iron core has: an annular wall portion; and a plurality of teeth extending radially inward from an inner circumferential surface of the wall portion, the plurality of teeth being provided at equal intervals in a circumferential direction. Through the embodiment of the application, the wire embedding of the tooth part of the inner stator core can be facilitated, the electromagnetic performance of the motor is enhanced, and the torque fluctuation of the motor is reduced.
Description
Technical Field
The present application relates to the field of electric machines (motors).
Background
The motor is widely applied to various electromechanical devices including various home appliances (e.g., washing machines, fans, etc.), office automation equipment, industrial equipment, transportation equipment, etc. Generally, an electric motor includes a stator including a stator core having teeth, a stator winding including a plurality of coils wound around the teeth, and a rotor. The stator core provides a magnetic conduction path for a magnetic field and an arrangement space for a coil, and the like, and has a crucial influence on the electromagnetic performance, noise, vibration and the like of the whole motor.
It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions of the present application and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present application.
Disclosure of Invention
The inventors have found that, in some conventional structures in which a motor includes an inner stator and a rotor disposed opposite to the inner stator in a radial direction and located at a radially outer side of the inner stator, in order to facilitate wire insertion (which may be referred to as a wire insertion operation or a wire insertion process), an inner stator core of the inner stator is provided with a stator slot, that is, an open slot is formed between radially outer portions of respective teeth of the inner stator core, but since the inner stator core is in an open slot structure, problems such as magnetic leakage and torque ripple are easily caused, resulting in a loss in performance of the motor.
In order to solve at least one of the above problems or other similar problems, embodiments of the present application provide an inner stator core, a stator, an electric machine, and an electric product, in which the inner stator core has an annular wall portion and a plurality of teeth portions extending radially inward from an inner circumferential surface of the wall portion, that is, the inner stator core has a closed slot structure, and it is possible to facilitate the insertion of the teeth portions of the inner stator core, enhance the electromagnetic performance of the electric machine, reduce the torque ripple of the electric machine, and improve the performance of the electric machine.
According to a first aspect of embodiments of the present application, there is provided an inner stator core having:
an annular wall portion; and
and a plurality of teeth extending radially inward from an inner circumferential surface of the wall portion, the plurality of teeth being provided at equal intervals in a circumferential direction.
In one or more embodiments, the inner stator core further has:
and an annular yoke located radially inward of the wall portion, and to which radially inward end portions of the plurality of teeth are detachably connected.
In one or more embodiments, a radially inner end of the plurality of tooth portions has a convex portion, an outer circumferential surface of the yoke portion has a concave portion, and the plurality of tooth portions and the yoke portion are detachably connected by fitting of the convex portion and the concave portion.
In one or more embodiments, a radially inner end of the plurality of tooth portions has a concave portion, an outer circumferential surface of the yoke portion has a convex portion, and the plurality of tooth portions and the yoke portion are detachably connected by fitting of the convex portion and the concave portion.
According to a second aspect of embodiments of the present application, there is provided a stator having an inner stator core, an insulator, and a stator winding, the inner stator core being the inner stator core of the first aspect of the foregoing embodiments, the stator winding including a plurality of coils, each of the coils being wound around each of the teeth of the inner stator core with the insulator interposed therebetween.
According to a third aspect of the embodiments of the present application, there is provided a motor including a stator according to the second aspect of the embodiments and a rotor arranged to be opposed to the stator in a radial direction, the rotor including a cylindrical rotor frame and a plurality of rotor magnetic steels provided on an inner peripheral surface of a wall portion of the rotor frame, the rotor magnetic steels being arranged to be opposed to an inner stator core of the stator.
In one or more embodiments, the rotor frame is made of a metallic material and/or a non-metallic material.
In one or more embodiments, the rotor magnetic steel has one or more poles, and each magnetic steel is composed of one or more segments.
According to a fourth aspect of embodiments of the present application, there is provided an electric product having the motor of the third aspect of the foregoing embodiments.
One of the beneficial effects of the embodiment of the application lies in: the inner stator iron core of the embodiment of the application is of a closed slot structure, so that the wire embedding of the tooth part of the inner stator iron core can be facilitated, the electromagnetic performance of the motor is enhanced, the torque fluctuation of the motor is reduced, and the performance of the motor is improved.
Reference is made to the following description and accompanying drawings that disclose in detail certain embodiments of the invention, and which specify the manner in which the principles of the application may be employed. It should be understood that the embodiments of the present application are not so limited in scope. The embodiments of the application include many variations, modifications and equivalents within the spirit and scope of the appended claims.
Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.
Drawings
Elements and features described in one drawing or one implementation of an embodiment of the application may be combined with elements and features shown in one or more other drawings or implementations. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views, and may be used to designate corresponding parts for use in more than one embodiment.
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
figure 1 is a schematic view of an inner stator core according to an embodiment of the first aspect of the present application;
figure 2 is yet another schematic view of an inner stator core of an embodiment of the first aspect of the present application;
fig. 3 is another schematic view of an inner stator core shown in fig. 2;
fig. 4 is a schematic view of a yoke portion of an inner stator core shown in fig. 2;
figure 5 is another schematic view of an inner stator core shown in figure 1;
figure 6 is still another schematic view of an inner stator core shown in figure 1;
FIG. 7 is another schematic view of the yoke shown in FIG. 4;
FIG. 8 is a schematic view of a stator of an embodiment of a second aspect of the present application;
FIG. 9 is a schematic view of an electric machine embodying the third aspect of the present application;
fig. 10 is a schematic view of the rotor of the motor of fig. 9.
Detailed Description
The foregoing and other features of embodiments of the present application will become apparent from the following description, taken in conjunction with the accompanying drawings. In the following description and drawings, particular embodiments of the present application are disclosed in detail as being indicative of some of the embodiments in which the principles of the embodiments of the application may be employed, it being understood that the embodiments of the application are not limited to the embodiments described, but, on the contrary, the embodiments of the application include all modifications, variations and equivalents falling within the scope of the appended claims.
In embodiments of the present application, the term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising," "including," "having," and the like, refer to the presence of stated features, elements, components, and do not preclude the presence or addition of one or more other features, elements, components, and elements.
In the embodiments of the present application, the singular forms "a", "an", and the like may include the plural forms and should be interpreted broadly as "a" or "an" and not limited to the meaning of "a" or "an"; furthermore, the term "comprising" should be understood to include both the singular and the plural, unless the context clearly dictates otherwise. Further, the term "according to" should be understood as "at least partially according to … …," and the term "based on" should be understood as "based at least partially on … …," unless the context clearly dictates otherwise.
In the present embodiment, for the convenience of description, a direction parallel to a direction in which the shaft extends is referred to as an "axial direction", a radial direction around the shaft is referred to as a "radial direction", and a direction around the shaft is referred to as a "circumferential direction", but this is for the convenience of description only, and does not limit the orientation of the inner stator core, the stator, and the motor at the time of use or manufacture.
Various embodiments of the present application will be described below with reference to the drawings. These embodiments are merely exemplary and are not intended to limit the embodiments of the present application.
Embodiments of the first aspect
Embodiments of a first aspect of the present application provide an inner stator core.
Fig. 1 is a schematic view of an inner stator core 10 of an embodiment of a first aspect of the present application, showing the inner stator core as viewed from one axial end. The inner stator core 10 shown in fig. 1 has an annular wall portion 101, and the axial direction refers to a direction of an axis surrounded by the annular wall portion 101 or a direction parallel to the axis.
As shown in fig. 1, the inner stator core 10 includes an annular wall 101 and a plurality of teeth 102, the plurality of teeth 102 extending radially inward from an inner circumferential surface of the wall 101, and the plurality of teeth 102 being provided at equal intervals in a circumferential direction.
As can be seen from the above embodiments, the radially outer portion of the inner stator core 10 is an annular wall portion formed over the entire circumference, that is, the inner stator core 10 has a closed slot structure, and compared to the existing inner stator core having an open slot structure, the inner stator core of the present application can enhance the electromagnetic performance of the motor and reduce the torque ripple of the motor on the basis of the line insertion of the tooth portion 102 of the inner stator core 10, thereby improving the performance of the motor.
The number of teeth 102 is not limited in the present application and reference may be made to the related art. The wall 101 may not be a circular ring formed without interruption over the entire circumference, that is, the wall 101 of the inner stator core 10 may be formed of a plurality of arc-shaped wall sections (e.g., 2 or more) spaced in the circumferential direction, and a plurality of teeth may be provided on the inner circumferential surface of each arc-shaped wall section. Therefore, compared with the inner stator core in which the tooth parts are arranged at intervals and the opening grooves are formed between any adjacent tooth parts, the electromagnetic performance of the motor can be enhanced, the torque fluctuation of the motor can be reduced, and the performance of the motor can be improved.
Figure 2 is a schematic view of an inner stator core 10' according to an embodiment of the first aspect of the present application; fig. 3 is another schematic view of the inner stator core 10 'shown in fig. 2, and fig. 2 and 3 show the inner stator core 10' viewed in an axial direction and in a lateral direction, respectively. Fig. 4 is a schematic view of a yoke portion of an inner stator core 10' shown in fig. 2.
In one or more embodiments, as shown in fig. 2, 3 and 4, the inner stator core 10' may further have a ring-shaped yoke portion 103, the yoke portion 103 is located at a radially inner side of the wall portion 101, and radially inner ends of the plurality of tooth portions 102 are detachably coupled to the yoke portion 103. Thus, by detachably connecting the radially inner end portions of the plurality of teeth 102 to the yoke portion 103, the caulking of the teeth of the inner stator core can be easily performed even if the inner stator core has the yoke portion positioned radially inside the wall portion, and the structure of the inner stator core can be further strengthened.
In one or more embodiments, the radially inner ends of the plurality of teeth and the yoke portion may be detachably connected by a male-female fitting structure. As shown in fig. 2 and 3, the plurality of teeth 102 have convex portions 1021 at radially inner end portions thereof, the yoke 103 has concave portions 1031 at an outer peripheral surface thereof, and the plurality of teeth 102 and the yoke 103 are detachably connected by fitting the convex portions 1021 and the concave portions 1031. However, the present application is not limited thereto, and for example, in one or more embodiments, radially inner ends of the plurality of tooth portions may have concave portions, an outer circumferential surface of the yoke portion may have convex portions, and the plurality of tooth portions and the yoke portion may be detachably connected by cooperation of the convex portions and the concave portions. The present invention is not limited to the concave-convex fitting structure, and the radially inner ends of the plurality of teeth and the yoke portion may be detachably connected to each other, for example, by screwing, and a person skilled in the art may select the end portions according to actual needs.
Fig. 2 and 3 illustrate a case where the inner stator core 10' has a yoke portion, but the present invention is not limited thereto, and for example, in a case where the inner stator core is assembled to another apparatus to constitute a motor or an electric product, a part in another apparatus may be used as the yoke portion, for example, the inner stator core 10 illustrated in fig. 1 may be used, and in this case, the inner stator core 10 may be fixed to a part in another apparatus by a convex portion 1021 at an end portion of a tooth portion 1021 in a radial direction thereof, or may be fixed in another manner, whereby the number of parts can be further reduced.
Fig. 1, 2 and 3 described above illustrate a case where a wall portion of an inner stator core is a ring-shaped wall portion, and fig. 5 is another schematic view of the inner stator core shown in fig. 1, illustrating a case of two inner stator cores; figure 6 is still another schematic view of an inner stator core shown in figure 1; fig. 5 and 6 illustrate a state of a manufacturing process of the inner stator core 10 shown in fig. 1 and corresponding parts (parts of the inner stator core 10' other than the yoke part 103) in fig. 2 and 3.
As shown in fig. 5 and 6, a straight bar-shaped stator core part as shown in fig. 5 or 6 may be formed by cutting and processing a plate-shaped material, and then an inner stator core 10 as shown in fig. 1 and the corresponding parts in fig. 2 and 3 may be formed by performing a rolling process on the straight bar-shaped stator core part. Therefore, compared with the method of directly cutting and processing the annular inner stator core 10 on the plate-shaped material, the method has the advantages that the annular central part, namely the waste material area is large, the straight strip-shaped stator core part is firstly formed, and then the annular inner stator core 10 is formed in a rolling and processing mode, so that the material can be saved. However, the present invention is not limited thereto, and the inner stator core may be manufactured by, for example, casting.
FIG. 7 is another schematic view of the yoke shown in FIG. 4; a state of a manufacturing process of the yoke shown in fig. 4 is shown. As shown in fig. 7, the yoke part 103 shown in fig. 4 may be formed by cutting and processing a plate-shaped material to form a straight yoke part, and then by performing a rolling process on the straight yoke part. Thus, the present application can save material as compared to directly cutting and molding the yoke portion 103 on a plate-like material. However, the present invention is not limited to this, and the yoke may be manufactured by, for example, casting.
It should be noted that fig. 1 to 7 above only schematically illustrate the inner stator core according to the embodiment of the present application, but the present application is not limited thereto, and the details of each structure or component can also refer to the related art; further, structures or components not shown in fig. 1 to 7 may be added, or one or more structures or components in fig. 1 to 7 may be reduced. Reference may be made to the related art for elements or components not specifically identified in fig. 1 through 7, which are not limited in this application.
The inner stator iron core of the embodiment of the application is of a closed slot structure, so that the wire embedding of the tooth part of the inner stator iron core can be facilitated, the electromagnetic performance of the motor is enhanced, the torque fluctuation of the motor is reduced, and the performance of the motor is improved.
Embodiments of the second aspect
Embodiments of a second aspect of the present application provide a stator.
Fig. 8 is a schematic view of a stator 70 of an embodiment of the second aspect of the present application.
As shown in fig. 8, the stator 70 includes an inner stator core 701, an insulator 702, and a stator winding 703. The inner stator core 701 may have the structure of the inner stator core 10 of the embodiment of the first aspect, or the inner stator core 701 may also have the structure of the inner stator core 10 'of the embodiment of the first aspect, and since the structures of the inner stator core 10 and the inner stator core 10' have been described in detail in the embodiment of the first aspect, detailed descriptions thereof are omitted.
As shown in fig. 7, the stator winding 703 includes a plurality of coils, each of which is wound around each tooth portion (not shown in fig. 7) of the inner stator core 701 via an insulator 702. As for the arrangement of the insulator and the coil in the stator, the related art can be referred to, and the description thereof is omitted.
As can be seen from the above embodiments, the inner stator core 701 has a closed slot structure, and when a stator is formed by using the inner stator core 701 according to the present application, compared to an existing inner stator core having an open slot structure, the inner stator core according to the present application can enhance the electromagnetic performance of the motor, reduce the torque ripple of the motor, and improve the performance of the motor on the basis of the line insertion of the tooth portion 102 of the inner stator core.
It should be noted that fig. 8 above is only a schematic illustration of the stator of the embodiment of the present application, but the present application is not limited thereto, and the specific content of each structure or component can also refer to the related art; structures or components not shown in fig. 8 may be added or one or more structures or components in fig. 8 may be reduced. Reference may be made to the related art for elements or components not specifically identified in fig. 8, which should not be construed as limiting the present application.
The stator of the embodiment of the application can enhance the electromagnetic performance of the motor and reduce the torque fluctuation of the motor on the basis of facilitating the wire embedding of the tooth part of the inner stator core by using the inner stator core of the embodiment of the first aspect, thereby improving the performance of the motor.
Examples of the third aspect
Embodiments of a third aspect of the present application provide an electric machine.
Fig. 9 is a schematic view of a motor 80 according to an embodiment of a third aspect of the present application, and fig. 10 is a schematic view of a rotor in the motor shown in fig. 9.
As shown in fig. 9 and 10, the motor 80 includes a stator 801 and a rotor 802 disposed to face the stator 801 in the radial direction. The stator 801 is the stator 70 of the embodiment of the second aspect, and since the structure of the stator 70 has been described in detail in the embodiment of the second aspect, details are not repeated here. The rotor 802 has a cylindrical rotor frame 8021 and a plurality of rotor magnetic steels 8022 provided on the inner circumferential surface of the wall portion of the rotor frame 8021, and the rotor magnetic steels 8022 are arranged to face the inner stator core of the stator 801.
As can be seen from the foregoing embodiments, in the motor of the present application, the inner stator core of the stator 801 has a closed slot structure, and compared to the existing inner stator core having an open slot structure, when the motor is configured by using the stator of the present application, the electromagnetic performance of the motor can be enhanced, the torque ripple of the motor can be reduced, and the performance of the motor can be improved on the basis of the line insertion of the tooth portion of the inner stator core.
In one or more embodiments, the rotor frame 8021 may be made of a metal material, but is not limited thereto, the rotor frame 8021 may also be made of a non-metal material, or the rotor frame 8021 may be made of a metal material and a non-metal material, which is not limited thereto by the present application, and can be selected by one skilled in the art according to actual needs.
In the present application, the number of the rotor magnetic steels of the stator in the motor 80 is not limited, and any one of the rotor magnetic steels may have one or more poles, and each magnetic steel may be composed of one or more segments, for example, each magnetic steel may be composed of a plurality of segments stacked in the axial direction OO', but is not limited thereto, and may be composed of a plurality of segments stacked in the circumferential direction. The present application is not limited thereto, and those skilled in the art can select the material according to actual needs and difficulty of the manufacturing process.
It should be noted that fig. 9 and 10 above only schematically illustrate the motor according to the embodiment of the present application, but the present application is not limited thereto, and the details of each structure or component may also refer to the related art; further, structures or components not shown in fig. 9 and 10, such as a rotating shaft, etc., may be added, or one or more structures or components in fig. 8 and 9 may be reduced. Reference may be made to related art for components or elements not specifically identified in fig. 9 and 10, which are not intended to be limiting in this application.
In the motor of this application embodiment, the inner stator iron core of stator is the closed slot structure, for current inner stator iron core that has the open slot structure, when utilizing the stator of this application to constitute the motor, can be convenient including on the basis of the rule of the tooth portion of stator iron core, the electromagnetic properties of reinforcing motor reduces the torque ripple of motor, improves the performance of motor.
Embodiments of the fourth aspect
Embodiments of a fourth aspect of the present application provide an electrical product. The electric product is provided with the motor of the embodiment of the third aspect, the motor is provided with the stator of the embodiment of the second aspect, the stator is provided with the inner stator iron core of the embodiment of the first aspect, by enabling the inner stator iron core to be of a closed slot structure, the wire embedding of the tooth part of the inner stator iron core can be facilitated, the electromagnetic performance of the motor is enhanced, the torque fluctuation of the motor is reduced, and the performance of the motor is improved.
In the embodiment of the present application, the electric product may be any electric product including a motor, and may be, for example, a household appliance such as a washing machine, a vacuum cleaner (sweeper), a refrigerator (compressor), an air conditioner (indoor unit, outdoor unit), or the like, various industrial appliances such as a blower, a blender, an oxygenation pump, or the like, an office automation appliance, or a vehicle-mounted product such as a power steering system, or the like. Alternatively, the motor may be used as a motor in various information devices, industrial devices, and the like.
The embodiments of the present application have been described in conjunction with specific embodiments, but it should be clear to those skilled in the art that these descriptions are only illustrative and not intended to limit the scope of the embodiments of the present application. Various modifications and adaptations to the embodiments of the present application may occur to those skilled in the art based upon the spirit and principles of the embodiments of the present application and are within the scope of the embodiments of the present application.
Preferred embodiments of the present application are described above with reference to the accompanying drawings. The many features and advantages of the embodiments are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the embodiments that fall within the true spirit and scope thereof. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the embodiments of the present application to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope thereof.
Claims (9)
1. An inner stator core, characterized in that the inner stator core has:
an annular wall portion; and
and a plurality of teeth extending radially inward from an inner circumferential surface of the wall portion, the plurality of teeth being provided at equal intervals in a circumferential direction.
2. An inner stator core according to claim 1, wherein the inner stator core further comprises:
and an annular yoke located radially inward of the wall portion, and to which radially inward end portions of the plurality of teeth are detachably connected.
3. An inner stator core according to claim 2,
the plurality of teeth and the yoke are detachably connected by fitting the convex portions and the concave portions.
4. An inner stator core according to claim 2,
the plurality of teeth and the yoke are detachably connected by fitting the convex portions and the concave portions.
5. A stator having an inner stator core, an insulator and a stator winding,
the inner stator core is the inner stator core of any one of claims 1 to 4,
the stator winding includes a plurality of coils, and each of the coils is wound around each of the teeth of the inner stator core with the insulator interposed therebetween.
6. An electric motor having a stator and a rotor disposed radially opposite the stator, characterized in that:
the stator is the stator of claim 5,
the rotor includes a cylindrical rotor frame and a plurality of rotor magnetic steels provided on an inner circumferential surface of a wall portion of the rotor frame, and the rotor magnetic steels are arranged to face an inner stator core of the stator.
7. The electric machine of claim 6,
the rotor frame is made of a metallic material and/or a non-metallic material.
8. The machine according to claim 6 or 7,
the rotor magnetic steel is provided with one pole or multiple poles, and each magnetic steel is composed of one section or multiple sections.
9. An electrical product, characterized in that the electrical product has an electric machine according to any one of claims 6 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010135852.7A CN113346640A (en) | 2020-03-02 | 2020-03-02 | Inner stator iron core, stator, motor and electric product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010135852.7A CN113346640A (en) | 2020-03-02 | 2020-03-02 | Inner stator iron core, stator, motor and electric product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113346640A true CN113346640A (en) | 2021-09-03 |
Family
ID=77467267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010135852.7A Pending CN113346640A (en) | 2020-03-02 | 2020-03-02 | Inner stator iron core, stator, motor and electric product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113346640A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007259514A (en) * | 2006-03-20 | 2007-10-04 | Toshiba Corp | Rotating electric machine for employing divided stator iron core |
| CN107959361A (en) * | 2016-10-18 | 2018-04-24 | 中国科学院宁波材料技术与工程研究所 | The stator of permanent magnet torque motor and the permanent magnet torque motor with high torque density |
| CN107979258A (en) * | 2018-01-12 | 2018-05-01 | 中国计量大学 | A kind of permanent-magnet brushless DC electric machine closed slot stator and its coil-inserting method |
| CN108565997A (en) * | 2018-02-27 | 2018-09-21 | 广东威灵电机制造有限公司 | prefabricated stator punching, motor stator and motor |
| WO2018190062A1 (en) * | 2017-04-12 | 2018-10-18 | 三菱電機株式会社 | Stator core of dynamo-electric machine, and stator |
| CN208142939U (en) * | 2018-05-29 | 2018-11-23 | 安徽美芝制冷设备有限公司 | Stator module, motor and compressor |
| CN109417314A (en) * | 2016-07-08 | 2019-03-01 | 日创电机株式会社 | The manufacturing method and motor of the stator of motor, the stator of motor |
-
2020
- 2020-03-02 CN CN202010135852.7A patent/CN113346640A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007259514A (en) * | 2006-03-20 | 2007-10-04 | Toshiba Corp | Rotating electric machine for employing divided stator iron core |
| CN109417314A (en) * | 2016-07-08 | 2019-03-01 | 日创电机株式会社 | The manufacturing method and motor of the stator of motor, the stator of motor |
| CN107959361A (en) * | 2016-10-18 | 2018-04-24 | 中国科学院宁波材料技术与工程研究所 | The stator of permanent magnet torque motor and the permanent magnet torque motor with high torque density |
| WO2018190062A1 (en) * | 2017-04-12 | 2018-10-18 | 三菱電機株式会社 | Stator core of dynamo-electric machine, and stator |
| CN107979258A (en) * | 2018-01-12 | 2018-05-01 | 中国计量大学 | A kind of permanent-magnet brushless DC electric machine closed slot stator and its coil-inserting method |
| CN108565997A (en) * | 2018-02-27 | 2018-09-21 | 广东威灵电机制造有限公司 | prefabricated stator punching, motor stator and motor |
| CN208142939U (en) * | 2018-05-29 | 2018-11-23 | 安徽美芝制冷设备有限公司 | Stator module, motor and compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106877615B (en) | Motor and electric device having the same mounted thereon | |
| US10447102B2 (en) | Permanent magnet electrical machines and methods of assembling the same | |
| GB2555354A (en) | Permanent Magnet-Embedded Motor, Compressor, and Refrigerating and Air Conditioning Apparatus | |
| KR20170090420A (en) | Stator iron core and stator, motor | |
| JP6545393B2 (en) | Conscious pole rotor, motor and air conditioner | |
| CN110741533A (en) | Rotating electrical machine | |
| JP6474268B2 (en) | Induction synchronous motor | |
| US20060284509A1 (en) | Induction motor | |
| EP3358713B1 (en) | Motor | |
| KR102565493B1 (en) | Manufacturing methods for stators, electric motors, compressors, air conditioners and stators | |
| CN113346640A (en) | Inner stator iron core, stator, motor and electric product | |
| KR101771713B1 (en) | Insulation structure of motor | |
| CN214850688U (en) | Motor, compressor and refrigeration plant | |
| JP2006280087A (en) | Dynamo-electric machine | |
| JP2008011613A (en) | Brushless dc motor and air conditioner using it | |
| CN214506682U (en) | Stator punching sheet, motor, compressor and household appliance | |
| CN220359003U (en) | Permanent magnet motor with novel structure | |
| CN107046353B (en) | Motor and compressor with same | |
| US20230052600A1 (en) | Electric machines having a radially embedded permanent magnet rotor and methods thereof | |
| US20170104403A1 (en) | Step Motor | |
| US20230318377A1 (en) | Electric machines having a radially embedded permanent magnet rotor and methods thereof | |
| CN214799064U (en) | Stator, motor and electric product | |
| US20240072587A1 (en) | Radial spoked rotor with axial assist magnets | |
| CN214255874U (en) | Motor and electric appliance | |
| CN216356130U (en) | Stator module, motor and electrical equipment |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210903 |
|
| RJ01 | Rejection of invention patent application after publication |