CN115632502A - Stator, motor and compressor - Google Patents
Stator, motor and compressor Download PDFInfo
- Publication number
- CN115632502A CN115632502A CN202211426001.3A CN202211426001A CN115632502A CN 115632502 A CN115632502 A CN 115632502A CN 202211426001 A CN202211426001 A CN 202211426001A CN 115632502 A CN115632502 A CN 115632502A
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- stator
- housing
- groove
- stator core
- motor
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- 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
-
- 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
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to a stator, motor and compressor belongs to motor technical field, the stator for the motor, the motor includes the casing, and the stator includes stator core, and the cavity is injectd to the casing, and when stator and casing assembly, stator core wears to locate in the cavity, is equipped with a plurality of first bulges on the inner wall of casing, and stator core's periphery is equipped with a plurality of recesses, and the at least part of first bulge inlays in the recess. According to the stator, the effect of increasing the rigidity of the stator tooth part is improved through the matching of the first protruding part and the groove, so that the integral axial rigidity of the stator core is increased, the axial rigidity of the stator tooth part is increased, and the occurrence of a local mode of the stator tooth part at low frequency can be avoided.
Description
Technical Field
The application relates to the technical field of motors, in particular to a stator, a motor and a compressor.
Background
At present, most of stator cores of compressor motors are formed by stamping and folding riveting, and a conventional fastening mode generally adopts a buckle sheet or a direct welding mode. Through the iron core fixed by the buckling point structure, the axial rigidity of the tooth part of the stator iron core is relatively weak, and if the tooth length is relatively long, the stator tooth part can have a local mode with the frequency lower than 1000 Hz. In the traditional press mounting of the motor stator, a welding seam slot is generally formed in a stator punching sheet, and the stator punching sheet is fixed in an argon arc welding mode. This can damage the insulation of the stator core, resulting in increased iron losses and increased no-load current. Meanwhile, the weld seam plays a main role in axial reinforcement of the yoke part, the rigidity increasing effect of the tooth part is limited, and the tooth part still has a local mode with lower frequency for some stators with larger tooth length and minimum yoke thickness ratio values. The compressor may resonate with local modes of the teeth during operation, which has a great effect on the noise vibration level of the compressor.
The patent with the patent number of CN216981618U discloses a stator punching sheet, an electronic iron core and a motor, wherein a plurality of buckling points are arranged on the outer side of a yoke of a stator, the buckling points are inwards sunken, and the punching sheets are connected through the buckling points. The axial rigidity of the stator core connected through the buckling points is weak, and the rigidity of the tooth part is slightly increased besides the rigidity of the yoke part contacted with the hot sleeve of the shell.
Patent No. CN201721093463.2 discloses a novel stator core pressure equipment fastening method, stator lamination excircle will no longer be punched the cramp groove, but at the direct welding steel pull rod of the suitable position of iron core round outer surface, this kind of mode can destroy the insulating layer between the stator lamination, increase the iron loss, pull rod groove position is far away apart from the root of a tooth portion moreover, and is limited to tooth portion axial rigidity reinforcing effect, if tooth portion and minimum yoke thickness ratio value are great, can still not avoid the tooth portion to appear local mode.
Therefore, a stator capable of improving the strength of the stator core teeth is demanded.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the stator improves the effect of increasing the rigidity of the stator tooth part through the matching of the first protruding part and the groove, so that the overall axial rigidity of the stator core is increased, and the increase of the axial rigidity of the stator tooth part can avoid the occurrence of a local mode of the stator tooth part at low frequency.
The invention also provides a motor which comprises the stator.
The invention also provides a compressor which comprises the motor.
The stator comprises a stator core, the housing defines a hollow cavity, the stator core is arranged in the hollow cavity in a penetrating mode when the stator and the housing are assembled, a plurality of first protruding portions are arranged on the inner wall of the housing, a plurality of grooves are formed in the periphery of the stator core, and at least parts of the first protruding portions are embedded in the grooves.
According to the stator, the effect of increasing the rigidity of the stator tooth part is improved through the matching of the first protruding part and the groove, so that the integral axial rigidity of the stator core is increased, the axial rigidity of the stator tooth part is increased, and the occurrence of a local mode of the stator tooth part at low frequency can be avoided.
According to the stator of the invention, the stator core comprises the stator yoke part and a plurality of stator tooth parts connected with the inner periphery of the stator yoke part, the outer periphery of the stator yoke part is provided with a plurality of second protruding parts, the second protruding parts are abutted with the inner wall of the shell, and an air flow channel is defined between every two adjacent second protruding parts.
Alternatively, in the axial direction perpendicular to the stator core, a straight line in which both sides of the tooth width direction of the stator tooth portion are located and an outer contour of the stator yoke portion together define a first region in which at least part of the groove is located.
Optionally, the maximum width W of the groove 1 And width W of stator teeth 2 Satisfies the following conditions: 1/2W 2 <W 1 <2/3W 2 。
Optionally, the maximum depth D of the groove in the radial direction of the stator core 1 And a thickness D of the stator yoke 2 Satisfies the following conditions: 1/3D 2 <D 1 <1/2D 2 。
Optionally, the first protruding portion includes a matching portion and a connecting portion connected in sequence, the connecting portion connects the housing and the matching portion respectively, when the stator is assembled with the housing, the matching portion is embedded in the groove, and in an axial direction perpendicular to the stator core, a cross-sectional shape of the matching portion is the same as a cross-sectional shape of the groove.
Alternatively, when the stator is assembled with the housing, the cross-sectional shape of the fitting portion and the cross-sectional shape of the groove are both semicircular in a direction perpendicular to the axial direction of the stator core, and the radius of the groove and the radius of the fitting portion are the same.
Optionally, in a direction perpendicular to the axial direction of the stator core, a center of a cross section of the groove is collinear with a center line of symmetry of a cross section of the stator tooth.
Alternatively, the thickness T of the stator teeth portion in the axial direction of the stator core when the stator is assembled with the housing 1 And the thickness T of the first projection 2 Satisfies the following conditions: 1/2T 1 <T 2 <4/3T 1 。
The motor comprises a shell, wherein the shell defines a hollow cavity, a plurality of first protruding parts are arranged on the inner wall of the shell, and the stator is arranged in the hollow cavity in a penetrating mode.
According to the motor, the stator with stronger axial rigidity is arranged, so that the running state of the motor is more stable, and low-frequency resonance is prevented.
The compressor comprises the motor.
According to the compressor provided by the invention, the motor which runs more stably is arranged, so that the vibration of the compressor during running is reduced, and the running of the compressor is more stable.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a cross-sectional view in a radial direction of a motor according to an embodiment of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
fig. 3 is a cross-sectional view of a stator in a radial direction according to an embodiment of the present invention;
fig. 4 is a cross-sectional view of a housing of an electric machine according to an embodiment of the invention in a radial direction;
fig. 5 is a sectional view of a motor in an axial direction according to an embodiment of the present invention.
Reference numerals:
the motor (100) is provided with a motor,
the shell 2, the first protrusion 201, the fitting part 2012, the connecting part 2014 and the hollow cavity 202.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.
As shown in fig. 1 to 4, a stator 1 according to an embodiment of the present invention is used for an electric motor 100, the electric motor 100 includes a housing 2, the stator 1 includes a stator core 10, the housing 2 defines a hollow cavity 202, when the stator 1 is assembled with the housing 2, the stator core 10 is inserted into the hollow cavity 202, a plurality of first protrusions 201 are disposed on an inner wall of the housing 2, a plurality of grooves 11 are disposed on an outer periphery of the stator core 10, and at least a portion of the first protrusions 201 are embedded in the grooves 11. Fig. 1 shows a cross section in the radial direction when the housing 2 and the stator core 10 are assembled.
For unfolding, at least one end of the housing 2 is open, the opening is communicated with the hollow cavity 202, so as to install the stator core 10 into the housing 2, the stator core 10 is annular, the inner wall of the housing 2 is provided with a plurality of first protrusions 201, the periphery of the stator core 10 is provided with a plurality of grooves 11, in some embodiments, part of the first protrusions 201 is embedded into the grooves 11, in some embodiments, the first protrusions 201 are all embedded into the grooves 11, for example, the housing 2 is annular, when at least part of the inner wall of the housing 2 is spaced from the stator core 10, part of the first protrusions 201 can be embedded into the grooves 11, further, for example, the housing 2 is annular formed by sequentially connecting a plurality of protruding sections and recessed sections (protruding toward the direction close to the stator core 10, and recessed toward the direction away from the stator core 10), the first protrusions 201 are located on the protruding sections, the first protrusions are completely embedded into the grooves 11, or the housing 2 is annular, the inner wall of the housing 2 is attached to the stator core 10, the first protrusions are completely embedded into the grooves 11, and the grooves 201 are not used as a restriction. Stator core 10 is whole to be cyclic annular, still is equipped with the installation passageway in stator core 10, and the installation passageway runs through stator core 10 and sets up, is used for installing rotor core in the installation passageway.
According to the stator 1 provided by the embodiment of the invention, through the matching of the first protruding part 201 and the groove 11, the effect of increasing the rigidity of the stator tooth part 13 is improved, so that the overall axial rigidity of the stator core 10 is increased, and the increase of the axial rigidity of the stator tooth part 13 can avoid the occurrence of a local mode of the stator tooth part 13 at a low frequency.
In some embodiments, the plurality of grooves 11 are uniformly distributed along the circumferential direction of the stator core 10, and the plurality of first protrusions 201 are uniformly distributed along the inner circumference of the housing 2.
As shown in fig. 1 and 3, in some embodiments, the stator core 10 includes a stator yoke 12 and a plurality of stator teeth 13 connected to an inner periphery of the stator yoke 12, an outer periphery of the stator yoke 12 is provided with a plurality of second protrusions 14, when the stator 1 is assembled with the housing 2, the second protrusions 14 abut against an inner wall of the housing 2, and an air flow passage 142 is defined between two adjacent second protrusions 14. Because the second protruding portion 14 abuts against the inner wall of the housing 2, the stator yoke portion 12 is spaced from the inner wall of the housing 2, so that on one hand, the airflow channel 142 can be formed, and the heat generated by the stator core 10 can be cooled by the flowing heat exchange of the airflow in the airflow channel 142.
On the other hand, to most mechanical equipment, the vibration is a ubiquitous phenomenon in the equipment operation process, motor 100 is when moving, vibration of different degrees also can take place, motor 100's vibration can consume motor 100's energy to a certain extent, and then reduce motor 100's efficiency, vibration can directly injure motor 100's bearing in addition, accelerate the wearing and tearing of motor 100 bearing, make its normal life reduce greatly, and simultaneously, can make the rotor magnetic pole not hard up, cause the looks mutual friction between stator 1 and the rotor easily, increase motor 100 rotor and take place crooked or cracked risk, furthermore, motor 100's vibration can lead to motor 100 tip binding wire not hard up, cause end winding looks mutual friction, make the winding reduce insulation resistance to a certain extent, the short circuit takes place easily, especially for the compressor, can directly influence the performance of compressor. When satisfying the heat dissipation, second bulge 14 and the inner wall butt of casing 2, stator yoke portion 12 and the inner wall separation of casing 2 can reduce the vibration that transmits for casing 2 for the natural frequency of casing 2 staggers with the operating frequency of motor 100 during operation, avoids taking place resonance, and the noise reduction can improve the performance of compressor when motor 100 is applied to in the compressor.
Of course, on the other hand, when the stator 1 is applied to the motor 100, the motor 100 may generate magnetic field force when operating, and by providing the second protruding portion 14, the distance between the magnetic force when the motor 100 operates and the housing 2 may be increased, so that the acting force of the magnetic force received by the housing 2 may be reduced, the reaction force received by the stator core 10 may be reduced, the stability of the stator core 10 when rotating may be improved, the loss of the function of the motor 100 may be reduced, and the efficiency of the motor 100 may be improved.
It will be appreciated that the slot 11 is provided on the side of the stator yoke 12 close to the housing 2 and the stator teeth 13 are provided on the side of the stator yoke 12 facing away from the housing 2.
It should be noted that the abutment of the second protruding portion 14 with the inner wall of the housing 2 includes at least two cases, one case is that the second protruding portion 14 is only in contact with the inner wall of the housing 2, and the other case is that the second protruding portion 14 is welded with the inner wall of the housing 2, and the application is not limited.
In some embodiments, the second projection 14 is integrally formed with the stator yoke 12.
In some embodiments, the plurality of second projections 14 are evenly distributed along the outer circumference of the stator yoke 12.
In some embodiments, the plurality of grooves 11, the plurality of first protrusions 201, and the plurality of stator teeth 13 correspond one to one.
In some embodiments, in the direction perpendicular to the axial direction of the stator core 10, a straight line in which both sides of the tooth width direction of the stator tooth portion 13 are located and the outer contour of the stator yoke portion 12 together define a first region in which at least part of the groove 11 is located. This enables the grooves 11 to be closer to the stator teeth 13, enabling the rigidity of the stator teeth 13 in the axial direction to be enhanced more.
As shown in FIGS. 1 and 2, FIG. 1 shows W 2 FIG. 2 shows W 1 In some embodiments, the maximum width W of the groove 11 1 And width W of stator teeth 13 2 Satisfies the following conditions: 1/2W 2 <W 1 <2/3W 2 . An excessively large maximum width of the groove 11 may cause a reduction in the strength of the stator yoke 12 in the radial direction, and an excessively small maximum width of the groove 11 may cause the first projecting portion 201 to have a weak effect on enhancing the rigidity of the stator teeth 13 in the axial direction, and therefore it is necessary to set an appropriate value of the maximum width of the groove 11, for example, W 1 Can be 13/24W 2 、14/24W 2 And 15/24W 2 Etc., the application is not limited.
As shown in fig. 3, in some embodiments, the maximum depth D of the groove 11 in the radial direction of the stator core 10 1 And a thickness D of the stator yoke 12 2 Satisfies the following conditions: 1/3D 2 <D 1 <1/2D 2 . An excessively large maximum depth of the groove 11 may cause a decrease in the strength of the stator yoke 12 in the radial direction, and an excessively small maximum depth of the groove 11 may cause the first protrusion 201 to reinforce the statorThe stiffness of the teeth 13 in the axial direction is less effective and it is therefore necessary to set a suitable maximum depth rating of the grooves 11, for example the maximum depth D of the grooves 11 1 May be 9/24D 2 、10/24D 2 And 11/24D 2 Etc., the application is not limited.
In some embodiments, the first protrusion 201 includes a fitting portion 2012 and a connecting portion 2014 connected in sequence, the connecting portion 2014 connects the housing 2 and the fitting portion 2012 respectively, when the stator 1 is assembled with the housing 2, the fitting portion 2012 is embedded in the groove 11, and a cross-sectional shape of the fitting portion 2012 is the same as a cross-sectional shape of the groove 11 in a direction perpendicular to an axial direction of the stator core 10. Thus, the stator core 10 and the housing 2 can be prevented from shaking relatively when the motor 100 operates, vibration of the housing 2 generated when the motor 100 operates can be reduced, resonance can be further avoided, and noise when the motor 100 operates can be reduced.
The cross-sectional shapes of the groove 11 and the fitting part 2012 can be square, rectangle, ellipse, triangle, etc.
It should be noted that, the fitting portion 2012 is integrally formed with the connecting portion 2014 and the housing 2, only for explaining the concept that a portion of the first protruding portion 201 is fitted into the groove 11, and another portion is not fitted into the groove, the fitting portion 2012 is enclosed by a semi-circular arc and a line segment, one end of the connecting portion 2014 and the fitting portion 2012 share the line segment, and the other end is defined by an arc curve of an arc surface in which an inner circle of the housing 2 is located.
As shown in fig. 1 and 2, in some embodiments, when the stator 1 is assembled with the housing 2, in a direction perpendicular to the axial direction of the stator core 10, the cross-sectional shape of the fitting portion 2012 and the cross-sectional shape of the groove 11 are both semicircular, and the radius of the groove 11 is the same as the radius of the fitting portion 2012, so that the structural arrangement can be simplified, the assembly of the stator core 10 and the housing 2 can be facilitated, and meanwhile, a sufficient space for arranging the airflow channel 142 can be ensured, and while the rigidity of the stator teeth 13 is increased, the circulation of airflow in the airflow channel 142 is ensured to facilitate heat dissipation.
As shown in fig. 1, in some embodiments, the center of the cross section of the groove 11 is collinear with the center line of symmetry of the cross section of the stator teeth 13 in the direction perpendicular to the axial direction of the stator core 10, so that the groove 11 is closer to the stator teeth 13, which can greatly enhance the rigidity of the stator teeth 13 in the axial direction.
As shown in fig. 5, in some embodiments, the thickness T of the stator teeth 13 is set when the stator 1 is assembled with the housing 2 in the axial direction of the stator core 10 1 And the thickness T of the first projection 201 2 Satisfies the following conditions: 1/2T 1 <T 2 <4/3T 1 When the thickness of the first protruding portion 201 is too large, the overall volume of the motor 100 is increased, and when the thickness of the first protruding portion 201 is too small, the effect of increasing the rigidity of the stator teeth 13 in the axial direction is weak, so that it is necessary to provide an appropriate thickness of the first protruding portion 201, for example, T 2 Can be 13/24T 1 、14/24T 1 、15/24T 1 、16/24T 1 、17/24T 1 、18/24T 1 、19/24T 1 、20/24T 1 、21/24T 1 、22/24T 1 、23/24T 1 、24/24T 1 、25/24T 1 、26/24T 1 、27/24T 1 、28/24T 1 、29/24T 1 、30/24T 1 And 31/24T 1 And the like.
In some embodiments, the height of the housing 2 is the same as the stack height of the stator core 10, which can reduce the volume of the motor 100 as much as possible.
As shown in fig. 4, in some embodiments, the motor 100 includes a housing 2, the housing 2 defines a hollow cavity 202, a plurality of first protrusions 201 are disposed on an inner wall of the housing 2, and the stator 1 is disposed in the hollow cavity 202, where the stator 1 is inserted.
According to the motor 100 of the embodiment of the invention, the stator 1 with stronger axial rigidity is arranged, so that the running state of the motor 100 is more stable, and low-frequency resonance is prevented.
In a specific embodiment, the housing 2 is connected to the stator core 10 by shrink fitting so that the outer circumferential surface of the second projection 14 can be in full contact with the inner wall surface of the housing 2 and the end surface of the first projection 201 can be in full contact with the inner wall surface of the groove 11.
The compressor according to an embodiment of the present invention includes the motor 100 described above.
According to the compressor provided by the embodiment of the invention, the motor 100 which operates more stably is arranged, so that the vibration of the compressor during operation is reduced, and the compressor operates more stably.
In some embodiments, the motor 100 and the compressor housing 2 are connected by a shrink fit process, so that the outer circumferential surface of the housing 2 of the motor 100 is completely contacted with the inner circumferential surface of the compressor housing 2, thereby reducing the vibration during the operation of the compressor and making the operation of the compressor more stable.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations or positional relationships based on those illustrated in the drawings, merely for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily 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.
Claims (11)
1. The utility model provides a stator, is used for the motor, the motor includes the casing, its characterized in that, the stator includes stator core, the cavity is injectd to the casing, works as the stator with during the casing assembly, stator core wears to locate in the cavity, be equipped with a plurality of first bulges on the inner wall of casing, stator core's periphery is equipped with a plurality of recesses, at least part of first bulge inlay in the recess.
2. The stator according to claim 1, wherein the stator core comprises a stator yoke portion and a plurality of stator teeth portions connected to an inner periphery of the stator yoke portion, an outer periphery of the stator yoke portion is provided with a plurality of second protrusions, when the stator is assembled with the housing, the second protrusions abut against an inner wall of the housing, and an air flow passage is defined between two adjacent second protrusions.
3. The stator according to claim 2, wherein, in a direction perpendicular to an axial direction of the stator core, a straight line on which both side edges of the stator tooth portion in a tooth width direction are located and an outer contour of the stator yoke portion together define a first region in which at least part of the groove is located.
4. A stator according to claim 3, characterized in that the maximum width W of the groove 1 And width W of the stator teeth 2 Satisfies the following conditions: 1/2W 2 <W 1 <2/3W 2 。
5. A stator according to claim 3, characterized in that the maximum depth D of the groove in the radial direction of the stator core 1 And a thickness D of the stator yoke 2 Satisfies the following conditions: 1/3D 2 <D 1 <1/2D 2 。
6. The stator according to claim 4 or 5, wherein the first protruding portion includes a fitting portion and a connecting portion connected in sequence, the connecting portion connects the housing and the fitting portion, respectively, the fitting portion is embedded in the groove when the stator is assembled with the housing, and a cross-sectional shape of the fitting portion is the same as a cross-sectional shape of the groove in an axial direction perpendicular to the stator core.
7. The stator as claimed in claim 6, wherein the cross-sectional shape of the fitting portion and the cross-sectional shape of the groove are both semicircular in a direction perpendicular to the axial direction of the stator core when the stator is assembled with the housing, and the radius of the groove and the radius of the fitting portion are the same.
8. The stator of claim 7 wherein a center of a cross-section of the groove is collinear with a center line of symmetry of a cross-section of the stator teeth in a direction perpendicular to an axial direction of the stator core.
9. The stator according to claim 3, wherein a thickness T of the stator teeth portion is in an axial direction of the stator core when the stator is assembled with the housing 1 And a thickness T of the first projection 2 Satisfies the following conditions: 1/2T 1 <T 2 <4/3T 1 。
10. An electric machine, comprising:
the shell is used for limiting a hollow cavity, and a plurality of first bulges are arranged on the inner wall of the shell;
a stator as claimed in any one of claims 1 to 9, the stator being disposed through the hollow cavity.
11. A compressor, characterized by comprising an electric machine according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211426001.3A CN115632502A (en) | 2022-11-14 | 2022-11-14 | Stator, motor and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211426001.3A CN115632502A (en) | 2022-11-14 | 2022-11-14 | Stator, motor and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115632502A true CN115632502A (en) | 2023-01-20 |
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ID=84909966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211426001.3A Pending CN115632502A (en) | 2022-11-14 | 2022-11-14 | Stator, motor and compressor |
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| Country | Link |
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| CN (1) | CN115632502A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116404771A (en) * | 2023-04-23 | 2023-07-07 | 佛山市液艺科技有限公司 | Motor combined stator for drainage pump |
-
2022
- 2022-11-14 CN CN202211426001.3A patent/CN115632502A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116404771A (en) * | 2023-04-23 | 2023-07-07 | 佛山市液艺科技有限公司 | Motor combined stator for drainage pump |
| CN116404771B (en) * | 2023-04-23 | 2024-02-27 | 浙江硕驰泵业有限公司 | Motor combined stator for drainage pump |
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