CN107276289B - Motor and washing machine with same - Google Patents
Motor and washing machine with same Download PDFInfo
- Publication number
- CN107276289B CN107276289B CN201710618224.2A CN201710618224A CN107276289B CN 107276289 B CN107276289 B CN 107276289B CN 201710618224 A CN201710618224 A CN 201710618224A CN 107276289 B CN107276289 B CN 107276289B
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- rotor
- spline
- positioning groove
- groove
- spline assembly
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- 238000005406 washing Methods 0.000 title claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 150000007823 ocimene derivatives Chemical class 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- XJPBRODHZKDRCB-UHFFFAOYSA-N trans-alpha-ocimene Natural products CC(=C)CCC=C(C)C=C XJPBRODHZKDRCB-UHFFFAOYSA-N 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 15
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/304—Arrangements or adaptations of electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Textile Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The application provides a motor and a washing machine with the same, wherein the motor comprises a stator and a rotor matched with the stator, and the rotor comprises: a rotor frame, wherein a positioning structure is arranged at the geometric center of the rotor frame; and the spline assembly is arranged at the geometric center of the rotor frame through a positioning structure. The application effectively solves the problem that the rotor of the motor is difficult to position in the assembly process in the prior art.
Description
Technical Field
The application relates to the technical field of motors, in particular to a motor and a washing machine with the motor.
Background
In the prior art, the rotor of an electric machine includes a rotor frame and a spline assembly. The rotor frame and the spline assembly are positioned through the cooperation of the three positioning protrusions and the guide piece, and then the spline assembly is locked on the rotor frame through the fastener. However, in actual manufacturing, it is difficult to find not only the three points of centering but also insufficient positioning or over-positioning is easily caused by the positioning projections. Secondly, the fastener can only axially compress the bushing, and the transmission axial torque can only depend on the compressed friction force, so that the screw compression force is large, the shearing force born by the positioning protrusion is large, and the eccentricity and the noise are large in the motor rotation process.
Disclosure of Invention
The application mainly aims to provide a motor and a washing machine with the motor, so as to solve the problem that a rotor of the motor is difficult to position in the assembly process in the prior art.
In order to achieve the above object, according to one aspect of the present application, there is provided an electric machine including a stator and a rotor cooperating with the stator, the rotor including: a rotor frame, wherein a positioning structure is arranged at the geometric center of the rotor frame; and the spline assembly is arranged at the geometric center of the rotor frame through a positioning structure.
Further, the positioning structure is a positioning groove arranged at the center of the rotor frame, the periphery of the spline assembly is matched with the shape of the positioning groove and embedded in the positioning groove, a through hole for the driving shaft to pass through is formed in the bottom of the positioning groove, and the through hole is positioned at the center of the positioning groove.
Further, the spline assembly is of a polygonal structure or an elliptic structure, and the positioning groove is of a polygonal groove or an elliptic groove which is matched with the polygonal structure or the elliptic structure in shape.
Further, the polygonal structure is an ocissus triangle structure, and the positioning groove is a triangular groove matched with the shape of the Luo Lesi triangle structure.
Further, the groove wall surface of the positioning groove is formed by sequentially connecting at least one positioning curved surface.
Further, the spline assembly is bonded to the rotor frame.
Further, the spline assembly is bonded to the locating curved surface.
Further, the spline assembly includes: the periphery of the connecting piece is matched with the shape of the positioning groove and embedded in the positioning groove, and the connecting piece is provided with a central mounting hole; the spline housing is arranged in the central mounting hole.
Further, the connecting piece and the spline housing are integrally injection molded.
Further, the connecting piece and the spline housing are cast or sintered.
Further, the connector includes: the centering frame is formed by sintering metal powder; and/or the connecting structure is arranged in the centering frame, and is provided with a central mounting hole and is injection molded with the spline housing.
Further, a reinforcing structure is arranged on the surface of the spline housing, which is combined with the connecting piece.
Further, the reinforcing structure is a plurality of convex ribs which are circumferentially arranged at intervals around the outer peripheral surface of the spline housing.
Further, the positioning groove is a flaring groove, and the periphery of the spline assembly is provided with a conical section matched with the flaring groove.
According to another aspect of the present application, there is provided a washing machine including the above motor.
By applying the technical scheme of the application, the motor comprises a stator and a rotor matched with the stator. The rotor comprises a rotor frame and a spline assembly. The geometric center of the rotor frame is provided with a positioning structure, and the spline assembly is installed at the geometric center of the rotor frame through the positioning structure. Thus, the rotor of the motor positions the rotor frame and the spline assembly through the positioning structure positioned at the geometric center of the rotor frame, so that the spline assembly is arranged at the geometric center of the rotor frame, and the rotor frame and the spline assembly are assembled more accurately and are positioned more easily.
Compared with the prior art that the rotor frame and the spline assembly are positioned through the three positioning protrusions, the spline assembly is arranged on the rotor frame through the positioning structure positioned at the geometric center of the rotor frame, so that the rotor frame and the spline assembly are assembled more accurately, the rotor frame and the spline assembly are positioned more easily, noise generated in the rotation process of the rotor and vibration generated between the spline assembly and the rotor frame are reduced, and the use experience of a user is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
fig. 1 shows a schematic perspective view of a first embodiment of a rotor according to the present application;
FIG. 2 shows a cross-sectional view of the rotor of FIG. 1;
FIG. 3 shows a schematic perspective view of the rotor frame of FIG. 1;
FIG. 4 shows a schematic perspective view of a spline assembly of the rotor of FIG. 1;
FIG. 5 shows a schematic perspective view of another angle of the spline assembly of FIG. 4;
FIG. 6 is a schematic perspective view of a spline housing of the spline assembly of FIG. 4;
fig. 7 shows a schematic structural view of the positioning groove in fig. 1 in a triangular groove matched with the shape of the Luo Lesi triangular structure;
fig. 8 is a schematic perspective view showing the application of the rotor of the first embodiment to a washing machine;
FIG. 9 shows a schematic perspective view of a spline assembly of a second embodiment of a rotor according to the present application;
FIG. 10 shows a schematic perspective view of another angle of the spline assembly of FIG. 9;
FIG. 11 shows a schematic perspective view of a spline assembly of a third embodiment of a rotor according to the present application;
FIG. 12 shows a cross-sectional view of the spline assembly of FIG. 11;
FIG. 13 is a schematic perspective view of the connection structure of the spline assembly of FIG. 11; and
fig. 14 shows a cross-sectional view of the connection structure in fig. 13.
Wherein the above figures include the following reference numerals:
10. a rotor frame; 11. an annular protrusion; 12. a heat radiation hole; 20. a spline assembly; 21. a connecting piece; 211. centering frame; 212. a connection structure; 213. a central mounting hole; 22. a spline housing; 30. a positioning groove; 31. a through hole; 32. positioning a curved surface; 40. convex ribs; 50. a stator; 60. a rotor; 70. a drive shaft; 80. magnetic steel; 90. a washing machine tub.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.
In the present application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used generally with respect to the orientation shown in the drawings or to the vertical, vertical or gravitational orientation; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present application.
In order to solve the problem that a rotor of a motor is difficult to position in the assembly process in the prior art, the application provides the motor and a washing machine with the motor.
Example 1
As shown in fig. 1 to 3 and 8, the motor of the first embodiment includes a stator 50 and a rotor 60 cooperating with the stator 50, and the rotor 60 includes a rotor frame 10 and a spline assembly 20. Wherein a positioning structure is provided at the geometrical center of the rotor frame 10. The spline assembly 20 is mounted at the geometric center of the rotor frame 10 by a locating structure.
In this way, the rotor 60 of the motor positions the rotor frame 10 and the spline assembly 20 through the positioning structure located at the geometric center of the rotor frame 10, so that the spline assembly 20 is installed at the geometric center of the rotor frame 10, and the assembly of the rotor frame 10 and the spline assembly is more accurate and easy to position.
Compared with the prior art that the rotor frame and the spline assembly are positioned through three positioning protrusions, in the first embodiment, the spline assembly 20 is installed on the rotor frame 10 through the positioning structure positioned at the geometric center of the rotor frame 10, so that the assembly of the rotor frame and the spline assembly is more accurate, the rotor frame and the spline assembly are easier to position, noise generated in the rotation process of the rotor 60 and vibration generated between the spline assembly 20 and the rotor frame 10 are reduced, and the use experience of a user is improved.
Alternatively, the rotor frame 10 is a disk-shaped cylinder frame punched from a metal plate, and the cylinder is composed of a cylindrical side wall and a bottom surface. Wherein, the location structure sets up on the bottom surface.
As shown in fig. 3, in the motor of the first embodiment, an annular protrusion 11 is provided at a portion of the bottom surface of the rotor frame 10 which is away from the positioning structure, and a heat radiation hole 12 penetrating the bottom surface is provided at the annular protrusion 11. The heat dissipation holes 12 are used for performing heat dissipation operation of the rotor 60, so as to prevent the electromagnetic induction between the rotor 60 and the stator 50 from being affected by the excessive surface temperature of the rotor 60.
As shown in fig. 2 and 3, in the motor of the first embodiment, the positioning structure is a positioning groove 30 provided at the center of the rotor frame 10, the outer periphery of the spline assembly 20 is adapted to the shape of the positioning groove 30 and is embedded in the positioning groove 30, a through hole 31 through which the driving shaft 70 passes is provided on the bottom of the positioning groove 30, and the through hole 31 is located at the center of the positioning groove 30. The structure is simple and easy to process.
Specifically, the positioning groove 30 is located at the geometric center of the rotor frame 10, the spline assembly 20 is embedded in the positioning groove 30, and the driving shaft 70 is connected to the spline assembly 20 through the through hole 31. When the rotor 60 rotates, the spline assembly 20 can drive the driving shaft 70 to rotate, thereby realizing the operation of the connecting part with the driving shaft 70.
Alternatively, the spline assembly 20 has a polygonal structure or an elliptical structure, and the positioning groove 30 has a polygonal groove or an elliptical groove adapted to the shape of the polygonal structure or the elliptical structure. As shown in fig. 3 to 5 and 7, in the motor of the first embodiment, the polygonal structure is an ocimene triangle structure, and the positioning groove 30 is a triangular groove adapted to the shape of the triangle Luo Lesi. The structure can increase the bearing arc length of the spline assembly 20, reduce the stress of the spline assembly 20 connected with the rotor frame 10, and further ensure the connection stability of the rotor frame 10 and the spline assembly 20. In addition, the curved edge transition sharp angle of the Luo Lesi triangle structure adopts smooth transition, and the rotor frame 10 is made of metal plates punched by steel.
Specifically, the spline assembly 20 is of an ocimene triangle structure, and the positioning groove 30 is a triangular groove with a shape matched with that of the Luo Lesi triangle structure, so that the rotor frame 10 and the spline assembly 20 realize curved surface contact fit, pressure during bearing can be effectively reduced, and connection reliability of the rotor frame 10 and the spline assembly 20 under the condition of high torque can be effectively ensured. In addition, the curved surface has the function of transmitting torque at the same time, so that the curved surface of the spline assembly 20 bears continuous pressure, the condition of abrupt change and stress concentration is avoided, and the forward and reverse rotation stress surfaces are symmetrical. In this way, the interior of the rotor 60 only bears compressive stress, the bearing is reasonable, the bearing capacity of the rotor 60 is improved, and the application of high torque of the motor is combined.
As shown in fig. 2 and 7, in the motor of the first embodiment, the groove wall surface of the positioning groove 30 is formed by sequentially connecting at least one positioning curved surface 32. Like this, above-mentioned setting makes the realization curved surface contact location of spline subassembly 20 and rotor frame 10 for have good centering performance between the two, strengthen the centering precision of spline subassembly 20 on rotor frame 10, guarantee to fix a position reliably, reduce rotor 60's rotation instability, thereby make the rotation of motor more steady, improve user's use experience.
In the motor of the first embodiment, the spline assembly 20 is bonded to the rotor frame 10. In this way, the two components are connected together in an adhesive manner, so that the pre-compression caused by interference fit or a fastener can be avoided, and the stress concentration of the connecting part of the spline assembly 20 and the rotor frame 10 is reduced, thereby improving the structural strength of the rotor 60 and prolonging the service life of the rotor 60.
In the motor of the first embodiment, the spline assembly 20 is bonded to the locating curved surface 32. The arrangement can avoid the whole tensile stress of the rotor 60 after the spline assembly 20 is connected with the rotor frame 10, and lighten the comprehensive load of the spline assembly 20. Meanwhile, the arrangement reduces the assembly process of the rotor 60, shortens assembly time and improves production efficiency.
As shown in fig. 4 to 6, in the motor of the first embodiment, the spline assembly 20 includes a connecting member 21 and a spline housing 22. Wherein, the periphery of the connecting piece 21 is matched with the shape of the positioning groove 30 and embedded in the positioning groove 30, and the connecting piece 21 is provided with a central mounting hole 213. Wherein the spline housing 22 is disposed within the central mounting hole 213. Like this, spline assembly 20 is connected with positioning groove 30 through connecting piece 21 for spline assembly 20 is simpler and more convenient with rotor frame 10's assembly, makes things convenient for the staff to change spline assembly 20.
Optionally, the connecting member 21 is provided with a reinforcing rib. The above arrangement can improve the structural strength of the connecting member 21 and prevent the connecting member 21 from being deformed or broken to affect the normal operation of the rotor 60.
In the motor of the first embodiment, the connecting member 21 is injection molded integrally with the spline housing 22. The above arrangement makes the processing of the spline assembly 20 easier and simpler, thereby shortening the processing time of the rotor 60 and reducing the processing cost.
In the motor of the first embodiment, the surface of the spline housing 22, which is combined with the connecting member 21, is provided with a reinforcing structure. The above arrangement can increase the structural strength of the spline housing 22 after the spline housing 22 is connected with the connecting piece 21, prevent the spline housing 22 from breaking or being damaged, and further improve the working reliability of the rotor 60.
As shown in fig. 6, in the motor of the first embodiment, the reinforcing structure is a plurality of ribs 40 circumferentially spaced around the outer peripheral surface of the spline housing 22. The rib 40 has a simple structure and is easy to process. In addition, the ribs 40 can increase the contact area between the spline housing 22 and the connecting piece 21, so as to improve the connection strength of the spline housing 22 and the connecting piece and ensure the working reliability of the rotor 60.
As shown in fig. 2, in the motor of the first embodiment, the positioning groove 30 is a flaring groove, and the outer periphery of the spline assembly 20 has a tapered section that is adapted to the flaring groove. The above arrangement not only makes the rotor frame 10 easier to process, but also simplifies the assembly process of the spline assembly 20 and the rotor frame 10. Meanwhile, the centering quality of the spline assembly 20 is guaranteed, the spline assembly 20 is guaranteed not to eccentrically rotate in the rotation process of the rotor 60, and therefore vibration of the rotor 60 in the rotation process is reduced, and the use experience of a user is improved.
As shown in fig. 8, the present application also provides a washing machine including the above motor. The motor is an external rotor motor, i.e., the stator 50 of the motor is mounted at the rear wall of the tub 90 in the inner race. The rotor 60 is connected to the driving shaft 70 of the washing machine through the spline housing 22 on the outer ring and covers the stator 50. In this way, the spline assembly 20 is located on the geometric center of the rotor frame 10 by the above arrangement of the motor, so that the vibration of the rotor 60 can be reduced, the vibration of the motor can be further reduced, the vibration and noise of the washing machine in the working process can be finally reduced, and the use experience of users can be improved.
Optionally, the inner race of the spline housing 22 is provided with a key shape for mating with the drive shaft 70 of the washing machine.
The inner ring of the side wall of the rotor frame 10 is a magnetic steel pasting wall surface, a plurality of magnetic steels 80 are uniformly pasted on the magnetic steel pasting wall surface, and the magnetic steels 80 are opposite to the iron core of the stator 50. The magnetic steel 80 interacts with the electromagnetic force generated by the stator 50 to rotate the rotor 60, and the rotor 60 rotates to transmit torque to the driving shaft 70 of the washing machine, thereby realizing the rotation of the tub 90 of the washing machine.
Example two
The motor in the second embodiment is different from the first embodiment in that: the connection mode of the connecting piece 21 and the spline housing 22 is different.
As shown in fig. 9 and 10, in the motor of the second embodiment, the connecting member 21 and the spline housing 22 are cast or sintered. In this manner, spline assembly 20 is cast or sinter-formed from metal, leaving the injection molded portions out. The processing of the spline assembly 20 is simpler, the injection molding process of the connecting piece 21 and the spline housing 22 is omitted, the outer edge of the spline assembly 20 is directly bonded with the rotor frame 10, and the processing of the rotor 60 is simpler and more convenient.
Example III
The motor in the third embodiment differs from the first embodiment in that: the connection mode of the connecting piece 21 and the spline housing 22 is different.
As shown in fig. 11 to 14, in the motor of the third embodiment, the connecting member 21 includes a centering frame 211 and a connecting structure 212. Wherein the centering frame 211 is formed by sintering metal powder. The connection structure 212 is disposed within the centering frame 211, the connection structure 212 having a central mounting hole 213, the connection structure 212 being injection molded with the spline housing 22. Like this, above-mentioned setting can effectively improve spline assembly 20's overall structure intensity, prolongs spline assembly 20's life, also is favorable to the precision of centering more.
From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:
thus, the rotor of the motor positions the rotor frame and the spline assembly through the positioning structure positioned at the geometric center of the rotor frame, so that the spline assembly is arranged at the geometric center of the rotor frame, and the rotor frame and the spline assembly are assembled more accurately and are positioned more easily.
Compared with the prior art that the rotor frame and the spline assembly are positioned through the three positioning protrusions, the spline assembly is arranged on the rotor frame through the positioning structure positioned at the geometric center of the rotor frame, so that the rotor frame and the spline assembly are assembled more accurately, the rotor frame and the spline assembly are positioned more easily, noise generated in the rotation process of the rotor and vibration generated between the spline assembly and the rotor frame are reduced, and the use experience of a user is improved.
It will be apparent that the embodiments described above are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (13)
1. An electric machine comprising a stator (50) and a rotor (60) cooperating with the stator (50), characterized in that the rotor (60) comprises:
a rotor frame (10), a positioning structure being arranged at the geometrical center of the rotor frame (10);
-a spline assembly (20), said spline assembly (20) being mounted at the geometric centre of the rotor frame (10) by means of the positioning structure;
the positioning structure is a positioning groove (30) arranged at the center of the rotor frame (10), the periphery of the spline assembly (20) is matched with the shape of the positioning groove (30) and embedded in the positioning groove (30), a through hole (31) for a driving shaft (70) to pass through is formed in the bottom of the positioning groove (30), and the through hole (31) is positioned at the center of the positioning groove (30);
the spline assembly (20) is of a polygonal structure or an elliptic structure, and the positioning groove (30) is of a polygonal groove or an elliptic groove which is matched with the polygonal structure or the elliptic structure in shape.
2. The electric machine according to claim 1, characterized in that the polygonal structure is an ocimene triangle structure and the positioning groove (30) is a triangular groove adapted to the shape of the Luo Lesi triangle structure.
3. The electric machine according to claim 1, characterized in that the groove wall surface of the positioning groove (30) is formed by sequentially connecting at least one positioning curved surface (32).
4. The electric machine according to claim 1, characterized in that the spline assembly (20) is glued to the rotor frame (10).
5. A machine according to claim 3, wherein the spline assembly (20) is bonded to the locating curved surface (32).
6. The electric machine according to claim 1, characterized in that the spline assembly (20) comprises:
the periphery of the connecting piece (21) is matched with the shape of the positioning groove (30) and embedded in the positioning groove (30), and the connecting piece (21) is provided with a central mounting hole (213);
and the spline housing (22) is arranged in the central mounting hole (213).
7. The electric machine according to claim 6, characterized in that the connecting piece (21) is injection molded integrally with the spline housing (22).
8. The electric machine according to claim 6, characterized in that the connecting piece (21) is cast or sinter-molded with the spline housing (22).
9. The electric machine according to claim 6, characterized in that the connection piece (21) comprises:
a centering frame (211), wherein the centering frame (211) is formed by sintering metal powder; and/or
The connecting structure (212), the connecting structure (212) is arranged in the centering frame (211), the connecting structure (212) is provided with the center mounting hole (213), and the connecting structure (212) and the spline housing (22) are formed by injection molding.
10. An electric machine according to claim 6, characterized in that the spline housing (22) is provided with a reinforcing structure on the surface that is associated with the connecting piece (21).
11. The electric machine of claim 10, wherein the reinforcing structure is a plurality of ribs (40) circumferentially spaced about the outer peripheral surface of the spline housing (22).
12. The electric machine according to claim 1, characterized in that the positioning groove (30) is a flared groove, and the periphery of the spline assembly (20) has a conical section adapted to the flared groove.
13. A washing machine comprising a motor according to any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710618224.2A CN107276289B (en) | 2017-07-26 | 2017-07-26 | Motor and washing machine with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710618224.2A CN107276289B (en) | 2017-07-26 | 2017-07-26 | Motor and washing machine with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107276289A CN107276289A (en) | 2017-10-20 |
| CN107276289B true CN107276289B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710618224.2A Active CN107276289B (en) | 2017-07-26 | 2017-07-26 | Motor and washing machine with same |
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| CN (1) | CN107276289B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397881A (en) * | 2018-02-13 | 2018-08-14 | 南京优助智能科技有限公司 | A kind of control device for central air conditioner system energy centre |
| CN110676959A (en) * | 2018-07-02 | 2020-01-10 | 无锡小天鹅电器有限公司 | Rotor for motor, motor and washing machine |
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| EP1541738B1 (en) * | 2003-12-10 | 2013-06-12 | LG Electronics, Inc. | Outer rotor type motor for drum type washing machine and method for fabricating the same |
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| CN1783645A (en) * | 2004-11-30 | 2006-06-07 | 乐金电子(天津)电器有限公司 | Rotor frame and bush assembling structure for washing machine motor |
| JP2010195316A (en) * | 2009-02-26 | 2010-09-09 | Nsk Ltd | In-wheel motor and method for manufacturing the same |
| CN207039351U (en) * | 2017-07-26 | 2018-02-23 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor and there is its washing machine |
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| CN107276289A (en) | 2017-10-20 |
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