CN110890825A - Motor and clothes treatment device - Google Patents
Motor and clothes treatment device Download PDFInfo
- Publication number
- CN110890825A CN110890825A CN201810949217.5A CN201810949217A CN110890825A CN 110890825 A CN110890825 A CN 110890825A CN 201810949217 A CN201810949217 A CN 201810949217A CN 110890825 A CN110890825 A CN 110890825A
- Authority
- CN
- China
- Prior art keywords
- stator
- permanent magnet
- motor
- equal
- core
- 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
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
-
- 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
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/16—Stator cores with slots for windings
- H02K1/165—Shape, form or location of the slots
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Textile Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides a motor and a clothes processing device, wherein the motor comprises: the rotor assembly comprises a rotor core and a permanent magnet, wherein the rotor core is provided with an installation cavity with an opening at one end, the permanent magnet is installed in the installation cavity, and a plurality of magnetic poles are formed on the permanent magnet; the stator assembly is arranged in the installation cavity, the permanent magnet is positioned between the stator assembly and the inner side wall of the installation cavity, the stator assembly comprises a stator core and an armature winding, a plurality of stator teeth are arranged on the stator core, 12n wire grooves are formed among the plurality of stator teeth, n is an integer greater than or equal to 1, and the armature winding is wound on the plurality of stator teeth; the ratio of the number of the wire grooves to the number of the magnetic poles is 12: 13. the scheme adopts a scheme that 12: the combination of the wire slot and the magnetic pole of the motor 13 can inherit the advantages of a fractional slot structure, reduce the manufacturing cost of the motor and effectively reduce the harmonic content generated by an armature magnetic field, thereby reducing the vibration and noise of the motor during high-speed operation.
Description
Technical Field
The present invention relates to the field of home appliances, and more particularly, to a motor and a laundry treating apparatus.
Background
At present, the slot poles in the motor are mostly designed by taking 3 slots and 4 poles as units, and the matching of the number of the slot poles has the disadvantages of higher harmonic content in an armature reaction magnetic field, larger torque fluctuation of the motor during high-speed running, more vibration and larger noise.
Therefore, how to design a motor capable of reducing the harmonic content generated in the armature reaction magnetic field, thereby reducing the vibration and noise of the motor during high-speed operation, is a problem to be solved.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
To this end, it is an object of the invention to provide an electric machine.
Another object of the present invention is to provide a laundry treating apparatus including the motor.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides an electric machine, including: the rotor assembly comprises a rotor core and a permanent magnet, an installation cavity with an opening at one end is formed in the rotor core, the permanent magnet is installed in the installation cavity, and a plurality of magnetic poles are formed on the permanent magnet; the stator assembly is installed in the installation cavity, the permanent magnet is located between the stator assembly and the inner side wall of the installation cavity, the stator assembly comprises a stator core and an armature winding, a plurality of stator teeth are arranged on the stator core, 12n wire grooves are formed among the plurality of stator teeth, n is an integer greater than or equal to 1, and the armature winding is wound on the plurality of stator teeth; wherein, the ratio between the number of the wire grooves and the number of the magnetic poles is 12: 13.
the motor provided by the embodiment of the invention comprises a rotor assembly and a stator assembly, wherein the rotor assembly comprises a rotor core and a permanent magnet arranged on the rotor core, and meanwhile, an installation cavity with an opening at one end is arranged on the rotor core, so that the permanent magnet and the stator assembly can be arranged in the rotor core. And the stator assembly comprises a stator core and an armature winding, wherein the stator core and a plurality of stator teeth are mainly used for forming a plurality of wire slots so as to realize the fixation of the armature winding. And the armature winding can carry out armature reaction with the permanent magnet after the circular telegram to just can produce the magnetic field, so that the rotor subassembly rotates, just so can drive other objects through the rotation of rotor subassembly and rotate. And this kind of motor, the rotor subassembly is installed outside stator module, can form the motor structure of outer rotor internal stator like this, and this kind of outer rotor motor compares in inner rotor motor, and its moment is bigger, consequently, can provide better power, and then can improve the load capacity of motor under high speed. Here, the number of the wire grooves is 12n, and n is an integer greater than or equal to 1, that is, the number of the wire grooves is an integer multiple of 12, such as 12, 24, or 36, and the ratio of the number of the wire grooves to the number of the magnetic poles is 12: for example, 12 slots are provided, the number of the magnetic poles is 13, or 24 slots are provided, the number of the magnetic poles is 26, or 36 slots are provided, the number of the magnetic poles is 39, and the like, and in the arrangement, the number of the slots is an integral multiple of 12, and 12 is the minimum common divisor of the number of the slots in 3 slots and 4 poles and the number of the poles, and experiments show that the number of the magnetic slots can be matched to effectively reduce the harmonic content generated by an armature magnetic field, so that the torque fluctuation of the motor can be reduced, and the vibration and the noise of the motor during high-speed operation can be reduced. Further 12: the combination of the wire groove and the magnetic pole of the motor 13 also belongs to a fractional groove structure, and the fractional groove structure can reduce the manufacturing cost of the motor, so that the arrangement can also reduce the harmonic content generated by an armature magnetic field, reduce the vibration and noise of the motor in high-speed operation, and inherit the advantages of the fractional groove structure so as to reduce the manufacturing cost of the motor.
In addition, the motor provided according to the above embodiment of the present invention has the following additional technical features:
in any one of the above technical solutions, preferably, the permanent magnet is composed of a plurality of permanent magnet blocks arranged at intervals along a circumferential direction of the rotor core, each permanent magnet block can form a magnetic pole, and the number of the permanent magnet blocks is consistent with the number of the magnetic poles; or the permanent magnet is an annular body with a plurality of magnetic poles.
In these technical schemes, can be preferred to set up the permanent magnet into a plurality of permanent magnetism pieces that set up alone, like this a plurality of magnetic poles of formation of a plurality of permanent magnetism pieces of accessible, specifically speaking, can be the annular interval distribution with a plurality of permanent magnetism pieces, just so can form the magnetic pole number the same with the quantity of permanent magnetism piece, and this kind of setting only needs to correspond and produces a plurality of magnetic poles that can be convenient fast of a plurality of magnetic blocks of equidimension to make the processing degree of difficulty of product lower.
Of course, in other schemes, the permanent magnet may be arranged into an annular body, and then a plurality of magnetic poles may be formed by reasonably arranging the magnetic field inside the annular body, and this structure may make the processing of the permanent magnet difficult, so that it may be preferable to arrange the permanent magnet into a plurality of permanent magnet blocks arranged separately.
In any one of the above technical solutions, preferably, an installation groove is provided on an inner side wall of the installation cavity, and the permanent magnet is installed in the installation groove.
In these technical scheme, can prefer the structure setting corresponding mounting groove that corresponds the permanent magnet on rotor core's the inside wall, just so can correspond the permanent magnet and install in the mounting groove to realize the installation between permanent magnet and the rotor core simply fast.
In any one of the above technical solutions, preferably, the stator core includes: a stator ring; the stator teeth are arranged on the outer side wall of the stator ring, and are distributed at equal intervals along the circumferential direction of the stator ring; and any two adjacent stator teeth and the side wall of the stator ring can enclose the wire slot.
Among these technical scheme, can be preferred set the stator core to a structure including stator ring and a plurality of stator tooth, and the stator ring is because being the annular, consequently, can form the through-hole that wears to establish such as the output shaft of a power supply machine in the middle part, like this alright pass the output shaft by stator module's inside to just make the output shaft still can set up in the middle part of motor, therefore can make the structure of motor more reasonable. In addition, the stator ring is the annular, when setting up the output shaft, can avoid the output shaft of motor and stator module to take place to interfere to it is more convenient to make the setting of output shaft. And the stator teeth are used to form slots and to secure the coils so that they can be wound onto the stator core to form an armature winding.
In any of the above technical solutions, preferably, the stator ring and the plurality of stator teeth are of an integrated structure.
In these technical scheme, stator ring and a plurality of stator tooth are preferred integral type structure, because the mechanical properties of integral type structure is good, therefore can ensure the joint strength between stator ring and a plurality of stator tooth, in addition, still can make stator ring and a plurality of stator tooth an organic whole, batch production to improve the production efficiency of product, reduce the production and processing cost of product. Of course, the stator ring and the plurality of stator teeth can also be of a split structure, namely a detachable structure.
Preferably, a stator core can be formed by splicing and superposing a plurality of punching sheet units. Therefore, the stator core can be processed more simply and conveniently.
In any of the above technical solutions, preferably, the inner diameter of the stator ring is d, wherein d is greater than or equal to 120mm and less than or equal to 250 mm; and/or the width between the inner diameter of the stator ring and the outer diameter of the stator ring is t, wherein t is more than or equal to 5mm and less than or equal to 15 mm.
In the technical schemes, the inner diameter d of the stator ring is reasonably limited, so that the hole inside the stator core is moderate, and the width t between the inner diameter of the stator ring and the outer diameter of the stator ring is limited, so that the ring width of the stator core is proper. The size and the structure of the stator core can be more reasonable by limiting the inner diameter d between 120mm and 250mm and limiting the width t of the stator ring between 5mm and 15mm, so that the overall structure of the motor can be more reasonable and compact, the rotating speed, the efficiency and the like of the motor can be optimal, and the overall performance of the motor can be improved.
In any of the above technical solutions, preferably, a thickness of the stator ring in an axial direction of the stator ring is greater than or equal to 15mm and less than or equal to 40 mm. The arrangement enables the thickness of the stator ring to be moderate, so that the condition that the whole thickness of the motor is too thick or too thin can be avoided. In addition, the arrangement can ensure that the rotating speed, the efficiency and the like of the motor can reach the best, thereby ensuring the overall performance of the motor.
In any of the above technical solutions, preferably, the depth of the wire groove is greater than or equal to 10mm and less than or equal to 45 mm; and/or the width of the slot of the wire slot is more than or equal to 5mm and less than or equal to 15 mm.
In the technical schemes, the groove width of the wire groove is limited to 5-15 mm, so that the groove width of the wire groove is proper, the wire can be prevented from being separated from the wire groove, and the problem of poor wire winding caused by too small groove width can be avoided. The depth of the wire groove can reasonably limit the thickness of the armature winding, and the depth of the wire groove is set between 10mm and 45mm, so that the torque, the rotating speed, the efficiency and the like of the motor can be optimal, the overall performance of the motor can be improved, and the vibration and the noise of a product can be reduced.
In any one of the above technical solutions, preferably, a width of the permanent magnet in a radial direction of the rotor core is greater than or equal to 15mm and less than or equal to 50 mm; and/or the thickness of the permanent magnet in the axial direction of the rotor core is greater than or equal to 4mm and less than or equal to 8 mm.
In the technical schemes, the thickness and the width of the permanent magnet are reasonably limited, so that the strength of the magnetic pole can be limited, the strength of armature reaction can be reasonably limited, and the load capacity and other capacities of the motor are influenced. And through setting the thickness and the width of the permanent magnet in the above-mentioned scope, can make the rotational speed, efficiency of motor etc. all can reach the best to can improve the wholeness ability of motor.
Preferably, the motor is a permanent magnet synchronous motor.
In any one of the above technical solutions, preferably, the number of the wire grooves is 24, and the number of the magnetic poles is 26.
In these technical solutions, the number of the wire grooves is preferably 24, and the number of the magnetic poles is preferably 26, so that it can be ensured that the ratio of the number of the wire grooves to the number of the magnetic poles is 12: 13, the number of the wire grooves and the number of the magnetic poles are moderate, so that the overall performance of the motor can be optimal. Of course, in other schemes, the number of the wire grooves and the magnetic poles can be other values.
Wherein, preferably, the motor is a motor in a laundry treatment apparatus, such as a motor in a washing machine or a dryer.
In any one of the above technical solutions, preferably, the motor further includes: the connector is arranged on the rotor assembly or the stator assembly and can be connected with a power supply to supply power to the armature winding; and the output shaft is arranged on the rotor core and can rotate under the action of the rotor core.
In these technical schemes, can realize through this connector that the electricity between power such as commercial power and the armature winding is connected, just so can utilize commercial power etc. to supply power for armature winding or other spare parts. The output shaft is provided so that the rotational energy of the rotor can be output through the output shaft, and thus the driving force of the motor can be output through the output shaft, so that other objects (such as a washing tub) can be driven to rotate through the output shaft.
Preferably, the output shaft is detachably connected to the rotor core, so that the output shaft can be detached from the motor alone. Of course, the output shaft and the rotor core can be of an integrated structure.
In any one of the above technical solutions, preferably, a mounting hole is formed in the bottom wall of the mounting cavity, the output shaft is located in the mounting hole through a key connection, and the output shaft is further mounted on the rotor core through a nut.
In these technical solutions, it may be preferable to position and mount the output shaft and the rotor core first through a key, and then the output shaft may be finally mounted on the rotor core through a nut or the like. Of course, the output shaft and the rotor core may be connected by other structures.
Preferably, a through hole is formed in the middle of the stator core, one end of the output shaft is connected with the bottom wall of the mounting cavity, the other end of the output shaft is inserted into and extends out of the through hole, and then one end of the output shaft extending out of the through hole is in driving connection with a washing container and the like.
Embodiments of the second aspect of the invention provide a clothes treatment device, which comprises the motor provided in any one of the embodiments of the first aspect.
According to the clothes treatment device provided by the embodiment of the invention, the motor provided by any one of the embodiments of the first aspect is provided, so that the clothes treatment device provided by the embodiment of the invention has all the beneficial effects of the motor provided by any one of the embodiments of the first aspect, which are not listed here.
In the above technical solution, preferably, the laundry treatment apparatus further includes a washing container, and the washing container is directly connected to the motor in a driving manner.
In the technical schemes, when the washing machine is used specifically, the motor can be directly connected with washing containers such as a barrel body or a cylinder body of the washing machine, so that the washing containers such as the washing barrel can be directly driven to rotate through the motor.
In any of the above technical solutions, preferably, the laundry treating apparatus further includes a flange for connecting the washing container and a stator core of the motor.
In the technical schemes, when the rotor assembly is installed, a flange plate can be preferably arranged between the stator core and the washing container, so that the flange plate, the washing container and the stator core can be installed together through screws and the like, and the stator core can be finally fixed on the washing container by the arrangement, so that the installation precision between the stator and the rotor can be reasonably limited, and the air gap between the stator and the rotor is good after the rotor assembly is installed.
Among them, it is preferable that the laundry treating apparatus is a washing machine or a drying machine, and of course, the laundry treating apparatus may be other products besides the washing machine and the drying machine.
Additional aspects and advantages in accordance with the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a motor provided according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a stator core of an electric machine provided according to an embodiment of the present invention;
fig. 3 is a partial structural schematic view of a laundry treating apparatus according to an embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 3 is:
1 rotor assembly, 12 rotor core, 14 permanent magnet, 2 stator assembly, 22 stator core, 222 stator ring, 224 stator teeth, 226 slot, 24 armature winding, 3 connector and 4 flange.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
A motor and a laundry treating apparatus provided according to an embodiment of the present invention will be described with reference to fig. 1 to 3.
As shown in fig. 1 to 3, in an embodiment of a first aspect of the present invention, an electric machine is provided, where the electric machine includes a rotor assembly 1 and a stator assembly 2, where the rotor assembly 1 includes a rotor core 12 and a permanent magnet, an installation cavity with an open end is provided on the rotor core 12, the permanent magnet is installed in the installation cavity, and a plurality of magnetic poles are formed on the permanent magnet; the stator assembly 2 is installed in the installation cavity, the permanent magnet is located between the stator assembly 2 and the inner side wall of the installation cavity, the stator assembly 2 comprises a stator core 22 and an armature winding 24, a plurality of stator teeth 224 are arranged on the stator core 22, 12n wire slots 226 are formed between the plurality of stator teeth 224, wherein n is an integer greater than or equal to 1, and the armature winding 24 is wound on the plurality of stator teeth 224; wherein, the ratio between the number of wire slots 226 and the number of magnetic poles is 12: 13.
according to the embodiment of the invention, the motor comprises a rotor assembly 1 and a stator assembly 2, wherein the rotor assembly 1 comprises a rotor core 12 and a permanent magnet arranged on the rotor core 12, and meanwhile, an installation cavity with one open end is arranged on the rotor core 12, so that the permanent magnet and the stator assembly 2 can be arranged in the rotor core 12. And the stator assembly 2 includes the stator core 22 and the armature winding 24, where the stator core 22 and the plurality of stator teeth 224 are mainly used to form a plurality of wire slots 226 to enable fixation of the armature winding 24. The armature winding 24 can perform armature reaction with the permanent magnet after being electrified, so that a magnetic field can be generated to rotate the rotor assembly 1, and other objects can be driven to rotate through the rotation of the rotor assembly 1. In the motor, the rotor assembly 1 is arranged outside the stator assembly 2, so that a motor structure of an outer rotor and an inner stator can be formed, and compared with an inner rotor motor, the outer rotor motor has larger torque, so that better power can be provided, and the load capacity of the motor at high speed can be improved. Here, the number of the wire grooves 226 is 12n, and n is an integer greater than or equal to 1, that is, the number of the wire grooves 226 is an integer multiple of 12, such as 12, 24 or 36, and the ratio between the number of the wire grooves 226 and the number of the magnetic poles is 12: for example, 12 slots 226 are provided, the number of the magnetic poles is 13, or 24 slots 226 are provided, the number of the magnetic poles is 26, or 36 slots 226 are provided, the number of the magnetic poles is 39, and so on, and in this arrangement, the number of the slots 226 is an integral multiple of 12, and 12 is the smallest common divisor of the number of the slots in 3 slots and 4 poles and the number of the poles, and experiments show that the number of the magnetic slots can be matched to effectively reduce the harmonic content generated by the armature magnetic field, so that the torque fluctuation of the motor can be reduced, and thus the vibration and noise of the motor in high-speed operation can be reduced. Further 12: the combination of the slot 226 and the magnetic pole of 13 also belongs to a fractional slot structure, and the fractional slot structure can reduce the manufacturing cost of the motor, so that the arrangement can also inherit the advantages of the fractional slot structure while reducing the harmonic content generated by an armature magnetic field and reducing the vibration and noise of the motor in high-speed operation so as to reduce the manufacturing cost of the motor.
In any of the above embodiments, preferably, as shown in fig. 1 and 3, the permanent magnet is composed of a plurality of permanent magnet blocks 14 arranged at intervals along the circumferential direction of the rotor core 12, and each permanent magnet block 14 can form a magnetic pole, and the number of permanent magnet blocks 14 is the same as the number of magnetic poles. Of course, in another embodiment, the permanent magnet may be a ring with multiple poles.
In these embodiments, it is preferable that the permanent magnet is configured as a plurality of permanent magnet blocks 14, so that a plurality of magnetic poles can be formed by the plurality of permanent magnet blocks 14, specifically, for example, the plurality of permanent magnet blocks 14 are distributed in an annular interval, so that the number of magnetic poles equal to the number of permanent magnet blocks 14 can be formed, and in this configuration, the plurality of magnetic poles can be formed quickly and conveniently only by correspondingly producing a plurality of magnetic blocks with the same size, so that the difficulty in processing the product is low.
Of course, in other solutions (not shown in the drawings), the permanent magnet may be arranged as a ring, and then a plurality of magnetic poles can be formed by reasonably arranging the magnetic field inside the ring, and this structure makes the processing of the permanent magnet difficult, so it is preferable to arrange the permanent magnet as a plurality of permanent magnet blocks 14 arranged separately.
In any of the above embodiments, preferably, the inner side wall of the installation cavity is provided with an installation groove, and the permanent magnet is installed in the installation groove.
In these embodiments, it is preferable to provide a corresponding mounting groove on the inner sidewall of rotor core 12 corresponding to the structure of the permanent magnet, so that the permanent magnet can be correspondingly mounted in the mounting groove, and the mounting between the permanent magnet and rotor core 12 can be easily and quickly implemented.
In any of the above embodiments, preferably, as shown in fig. 1 and 2, the stator core 22 includes: a stator ring 222; a plurality of stator teeth 224 disposed on an outer sidewall of the stator ring 222, the plurality of stator teeth 224 being equally spaced apart along a circumferential direction of the stator ring 222; any two adjacent stator teeth 224 and the side wall of the stator ring 222 can enclose a wire slot 226.
In these embodiments, it is preferable that the stator core 22 is configured to include a stator ring 222 and a plurality of stator teeth 224, and the stator ring 222 is annular, so that a through hole for passing an output shaft of an electric motor or the like is formed in the middle, so that the output shaft can pass through the inside of the stator assembly 2, and the output shaft can still be disposed in the middle of the electric motor, thereby making the structure of the electric motor more reasonable. In addition, stator ring 222 is annular, when setting up the output shaft, can avoid the output shaft of motor and stator module 2 to take place to interfere to can make the setting of output shaft more convenient. And stator teeth 224 are used to form wire slots 226 and to secure the coils so that the coils can be wound onto stator core 22 to form armature windings 24.
In any of the above embodiments, preferably, as shown in fig. 1 and 2, the stator ring 222 is of a unitary structure with the plurality of stator teeth 224.
In the embodiments, the stator ring 222 and the plurality of stator teeth 224 are preferably of an integrated structure, because the integrated structure has good mechanical properties, the connection strength between the stator ring 222 and the plurality of stator teeth 224 can be ensured, and in addition, the stator ring 222 and the plurality of stator teeth 224 can be integrally manufactured and mass-produced, so that the production efficiency of products is improved, and the production and processing cost of the products is reduced. Of course, the stator ring 222 and the plurality of stator teeth 224 may also be a split structure, i.e., a detachable structure.
Preferably, a stator core 22 can be formed by splicing and stacking a plurality of punching sheet units. This can make the processing of the stator core 22 simpler and more convenient.
In any of the above embodiments, preferably, as shown in FIG. 2, the inner diameter of the stator ring 222 is d, wherein d is greater than or equal to 120mm and less than or equal to 250 mm; and/or the width between the inner diameter of the stator ring 222 and the outer diameter of the stator ring 222 is t, wherein t is more than or equal to 5mm and less than or equal to 15 mm.
In these embodiments, the bore ratio inside the stator core 22 can be made moderate by properly defining the inner diameter d of the stator ring 222, and defining the width t between the inner diameter of the stator ring 222 and the outer diameter of the stator ring 222 can make the ring width of the stator core 22 suitable. The size and structure of the stator core 22 can be more reasonable by limiting the inner diameter d between 120mm and 250mm and limiting the width t of the stator ring 222 between 5mm and 15mm, so that the overall structure of the motor can be more reasonable and compact, the rotating speed, the efficiency and the like of the motor can be optimal, and the overall performance of the motor can be improved.
In any of the above embodiments, preferably, the thickness of the stator ring 222 in the axial direction of the stator ring 222 is 15mm or more and 40mm or less. This arrangement enables the thickness of the stator ring 222 to be moderate, thereby avoiding the occurrence of an excessively thick or thin overall thickness of the motor. In addition, the arrangement can ensure that the rotating speed, the efficiency and the like of the motor can reach the best, thereby ensuring the overall performance of the motor.
In any of the above embodiments, preferably, the depth of the wire groove 226 is greater than or equal to 10mm and less than or equal to 45 mm; and/or the width of the slot 226 at the slot opening is greater than or equal to 5mm and less than or equal to 15 mm.
In these embodiments, the slot width of the slot 226 is limited to 5mm-15mm, so that the slot width of the slot 226 is suitable, thereby preventing the wire from being separated from the slot 226 and avoiding the problem of poor winding caused by too small slot width. The depth of the wire groove 226 can reasonably limit the thickness of the armature winding 24, and the depth of the wire groove 226 is set between 10mm and 45mm, so that the torque, the rotating speed, the efficiency and the like of the motor can be optimal, the overall performance of the motor can be improved, and the vibration and the noise of a product can be reduced.
In any of the above embodiments, it is preferable that the width of the permanent magnet in the radial direction of the rotor core 12 is 15mm or more and 50mm or less; and/or the thickness of the permanent magnet in the axial direction of rotor core 12 is 4mm or more and 8mm or less.
In the embodiments, the strength of the magnetic pole can be limited by reasonably limiting the thickness and the width of the permanent magnet, so that the strength of the armature reaction can be reasonably limited, and the load and other capabilities of the motor are influenced. And through setting the thickness and the width of the permanent magnet in the above-mentioned scope, can make the rotational speed, efficiency of motor etc. all can reach the best to can improve the wholeness ability of motor.
Wherein, preferably, the motor is a permanent magnet synchronous motor.
In any of the above embodiments, preferably, as shown in fig. 1 to 3, the number of the wire grooves 226 is 24, and the number of the magnetic poles is 26.
In these embodiments, the number of the wire slots 226 is preferably 24, and the number of the magnetic poles is preferably 26, so that the ratio of the number of the wire slots 226 to the number of the magnetic poles is 12: 13, the number of the wire slots 226 and the number of the magnetic poles are moderate, so that the overall performance of the motor can reach the best. Of course, the number of slots 226 and poles may be other values in other arrangements.
Wherein, preferably, the motor is a motor in a laundry treatment apparatus, such as a motor in a washing machine or a dryer.
In any of the above embodiments, preferably, as shown in fig. 3, the motor further includes: the connector 3 is arranged on the rotor assembly 1 or the stator assembly 2 and can be connected with a power supply to supply power to the armature winding 24; and an output shaft attached to rotor core 12 and rotatable by rotor core 12.
In these embodiments, the electrical connection between the power source such as the commercial power and the armature winding 24 can be realized through the connector 3, so that the armature winding 24 or other parts can be supplied with the commercial power. The output shaft is provided so that the rotational energy of the rotor can be output through the output shaft, and thus the driving force of the motor can be output through the output shaft, so that other objects (such as a washing tub) can be driven to rotate through the output shaft.
Wherein the output shaft is preferably detachably connected to rotor core 12 such that the output shaft can be detached from the motor alone. Of course, the output shaft and the rotor core 12 may be of an integral structure.
In any of the above embodiments, preferably, the bottom wall of the mounting cavity is provided with a mounting hole, the output shaft is located in the mounting hole through a key connection, and the output shaft is further mounted on the rotor core 12 through a nut.
In these embodiments, it may be preferable to perform positioning mounting of the output shaft with the rotor core 12 by a key, and then final mounting of the output shaft to the rotor core 12 by a nut or the like. Of course, the output shaft and rotor core 12 may be connected by other structures.
Preferably, as shown in fig. 1 to 3, a through hole is formed in the middle of the stator core 22, one end of the output shaft is connected to the bottom wall of the mounting cavity, and the other end of the output shaft is inserted into and extends out of the through hole, after which the end of the output shaft extending out of the through hole is drivingly connected to a washing container or the like.
As shown in fig. 3, an embodiment of the second aspect of the present invention provides a clothes treatment apparatus including the motor provided in any one of the embodiments of the first aspect.
According to the clothes treatment device provided by the embodiment of the invention, the motor provided by any one of the embodiments of the first aspect is provided, so that the clothes treatment device provided by the embodiment of the invention has all the beneficial effects of the motor provided by any one of the embodiments of the first aspect, which are not listed here.
In the above embodiment, preferably, the laundry treating apparatus further includes a washing tub directly connected to the motor drive.
In the embodiments, in a specific use, the motor may be directly connected to a washing container such as a tub or a drum of the washing machine, so that the washing container such as the washing tub may be directly driven to rotate by the motor.
In any of the above embodiments, preferably, as shown in fig. 3, the laundry treating apparatus further includes a flange 4 for connecting the washing tub and the stator core 22 of the motor.
In these embodiments, it is preferable to provide a flange 4 between the stator core 22 and the washing container during installation, so that the flange 4, the washing container and the stator core 22 can be installed together by screws or the like, and this arrangement enables the stator core 22 to be finally fixed on the washing container, so that the installation accuracy between the stator and the rotor can be reasonably limited to ensure that the air gap between the stator and the rotor is good after the rotor assembly 1 is installed.
Among them, it is preferable that the laundry treating apparatus is a washing machine or a drying machine, and of course, the laundry treating apparatus may be other products besides the washing machine and the drying machine.
In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means 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.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. An electric machine, comprising:
the rotor assembly (1) comprises a rotor core (12) and a permanent magnet, wherein an installation cavity with an opening at one end is formed in the rotor core (12), the permanent magnet is installed in the installation cavity, and a plurality of magnetic poles are formed on the permanent magnet;
the stator assembly (2) is installed in the installation cavity, the permanent magnet is located between the stator assembly (2) and the inner side wall of the installation cavity, the stator assembly (2) comprises a stator core (22) and an armature winding (24), a plurality of stator teeth (224) are arranged on the stator core (22), 12n wire slots (226) are formed among the plurality of stator teeth (224), wherein n is an integer greater than or equal to 1, and the armature winding (24) is wound on the plurality of stator teeth (224);
wherein the ratio between the number of wire slots (226) and the number of poles is 12: 13.
2. the electric machine of claim 1,
the permanent magnet is composed of a plurality of permanent magnets (14) arranged at intervals along the circumferential direction of the rotor core (12), each permanent magnet (14) can form a magnetic pole, and the number of the permanent magnets (14) is consistent with that of the magnetic poles; or
The permanent magnet is an annular body with a plurality of magnetic poles.
3. The electric machine according to claim 1, characterized in that the stator core (22) comprises:
a stator ring (222);
the stator teeth (224) are arranged on the outer side wall of the stator ring (222), and the stator teeth (224) are distributed at equal intervals along the circumferential direction of the stator ring (222);
any two adjacent stator teeth (224) and the side wall of the stator ring (222) can enclose the wire slot (226).
4. The electric machine of claim 3,
the stator ring (222) and the plurality of stator teeth (224) are of an integral structure; and/or
The inner diameter of the stator ring (222) is d, wherein d is more than or equal to 120mm and less than or equal to 250 mm; and/or
The width between the inner diameter of the stator ring (222) and the outer diameter of the stator ring (222) is t, wherein t is more than or equal to 5mm and less than or equal to 15 mm; and/or
The thickness of the stator ring (222) in the axial direction of the stator ring (222) is 15mm or more and 40mm or less.
5. The electric machine according to any of claims 1 to 4,
the depth of the wire groove (226) is more than or equal to 10mm and less than or equal to 45 mm; and/or
The width of the slot opening of the slot (226) is more than or equal to 5mm and less than or equal to 15 mm; and/or
The width of the permanent magnet in the radial direction of the rotor iron core (12) is more than or equal to 4mm and less than or equal to 8 mm; and/or
The thickness of the permanent magnet in the axial direction of the rotor core (12) is greater than or equal to 15mm and less than or equal to 50 mm.
6. The electric machine according to any of claims 1 to 4,
the motor is a permanent magnet synchronous motor; and/or
The number of the wire grooves (226) is 24, and the number of the magnetic poles is 26.
7. The electric machine of any one of claims 1 to 4, further comprising:
the connector (3) is arranged on the rotor assembly (1) or the stator assembly (2) and can be connected with a power supply to supply power to the armature winding (24);
and the output shaft is arranged on the rotor iron core (12) and can rotate under the action of the rotor iron core (12).
8. The electric machine of claim 7,
the mounting cavity is characterized in that a mounting hole is formed in the bottom wall of the mounting cavity, the output shaft is located in the mounting hole through key connection, and the output shaft is further mounted on the rotor core (12) through a nut.
9. A laundry treating apparatus, comprising the motor according to any one of claims 1 to 8.
10. The laundry treating apparatus according to claim 9,
the laundry treating apparatus further comprises a washing container directly in driving connection with the motor; and/or
The laundry treating apparatus is a washing machine or a dryer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810949217.5A CN110890825A (en) | 2018-08-20 | 2018-08-20 | Motor and clothes treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810949217.5A CN110890825A (en) | 2018-08-20 | 2018-08-20 | Motor and clothes treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110890825A true CN110890825A (en) | 2020-03-17 |
Family
ID=69744249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810949217.5A Pending CN110890825A (en) | 2018-08-20 | 2018-08-20 | Motor and clothes treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110890825A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07222419A (en) * | 1994-01-27 | 1995-08-18 | Sanyo Electric Co Ltd | Rotating electric machine |
| US6313558B1 (en) * | 1999-01-18 | 2001-11-06 | Japan Servo Co., Ltd. | Electric rotary machine having concentrated winding stator |
| CN107742930A (en) * | 2017-10-13 | 2018-02-27 | 天津大学 | Without the double remaining permagnetic synchronous motors of electromagnetic coupled between double 30 ° of each phase windings of Y phase shifts |
| CN107947511A (en) * | 2017-10-13 | 2018-04-20 | 天津大学 | The six mutually fault-tolerant permasyn morots without electromagnetic coupled between each phase winding |
-
2018
- 2018-08-20 CN CN201810949217.5A patent/CN110890825A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07222419A (en) * | 1994-01-27 | 1995-08-18 | Sanyo Electric Co Ltd | Rotating electric machine |
| US6313558B1 (en) * | 1999-01-18 | 2001-11-06 | Japan Servo Co., Ltd. | Electric rotary machine having concentrated winding stator |
| CN107742930A (en) * | 2017-10-13 | 2018-02-27 | 天津大学 | Without the double remaining permagnetic synchronous motors of electromagnetic coupled between double 30 ° of each phase windings of Y phase shifts |
| CN107947511A (en) * | 2017-10-13 | 2018-04-20 | 天津大学 | The six mutually fault-tolerant permasyn morots without electromagnetic coupled between each phase winding |
Non-Patent Citations (1)
| Title |
|---|
| 石峰: "扶梯用多极少槽永磁电机设计技术", 《中国优秀硕士论文电子期刊网》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8220295B2 (en) | Driving apparatus for washing machine | |
| US9124161B2 (en) | Double-stator/double-rotor type motor and direct drive apparatus for washer using same | |
| US8354766B2 (en) | Permanent magnet motor and washing machine provided therewith | |
| US8987962B2 (en) | Double-stator/double-rotor type motor and direct drive apparatus for washer using same | |
| CN111654159B (en) | Bus bar including blade | |
| EP2619456B1 (en) | Electric motor-driven compressor for vehicle | |
| US9716417B2 (en) | Motor | |
| EP1854199A2 (en) | Dual rotor type motor | |
| CN110247484A (en) | Food processor and stator core, motor for food processor | |
| KR20150063217A (en) | Motor and washing machine having the same | |
| CN113300543A (en) | Motor and household appliance | |
| CN210120439U (en) | Motor, compressor and refrigeration plant | |
| CN110890825A (en) | Motor and clothes treatment device | |
| CN214281050U (en) | Motor and clothes treatment device | |
| CN112234785B (en) | Birotor motor and air conditioning unit | |
| CN107565781B (en) | washing machine | |
| CN218514264U (en) | Axial flux motor for washing machine | |
| CN109274238A (en) | A kind of difference diameter wheel formula outer rotor three-phase permanent synchronous generator | |
| CN220368584U (en) | Motor and electrical equipment | |
| CN220359004U (en) | Ultrathin brushless motor | |
| CN212085935U (en) | Direct current motor | |
| CN219499076U (en) | Brushless T-type motor rotor | |
| CN219611579U (en) | Novel motor | |
| CN217522675U (en) | Electrical machine | |
| KR20140144862A (en) | Motor |
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: 20200317 |
|
| RJ01 | Rejection of invention patent application after publication |