CN112421820A - Rotor, motor, food processor, air supply device and household appliance - Google Patents

Abstract

The invention provides a rotor, a motor with the rotor, a food processor with the motor, an air supply device and a household appliance. Wherein, the rotor includes carousel and magnetic part, and the carousel includes first support and second support, and synthetic accommodation space is enclosed to first support and second support, and the magnetic part sets up in accommodation space. Use the mode of first support and second support to replace multilayer silicon steel sheet in this application to make first support and second support be difficult for appearing loosely, thereby guarantee rotor structure's stability, first support and second support are difficult for appearing loosely and need not set up alone the rotor end ring that is used for compressing tightly first support and second support, thereby alleviate the weight of motor, with the thickness that the magnetic part holding also can reduce the rotor in first support and second support, and then reduce the thickness of motor, realize the lightweight and the miniaturization of motor.

Description

Rotor, motor, food processor, air supply device and household appliance

Technical Field

The invention belongs to the technical field of motor manufacturing, and particularly relates to a rotor, a motor, a food processor, an air supply device, a household appliance, an electric vehicle and a power generation device.

Background

The motor mainly comprises parts such as stator, rotor and end cover, the rotor comprises magnet and multilayer silicon steel sheet, common magnet is two kinds with multilayer silicon steel sheet's mounting means, one kind is attached on multilayer silicon steel sheet surface with magnet, this kind of mode has increased the thickness of rotor, and magnet drops easily in multilayer silicon steel sheet, another kind is inside embedding multilayer magnet to silicon steel sheet, it is loose to avoid multilayer silicon steel sheet to appear, need additionally to increase the rotor end ring in order to be used for compressing tightly the silicon steel sheet, this kind of mode has not only increased the complexity and the cost of manufacture of technology, the weight of rotor has also been increased, be difficult to realize the lightweight and the miniaturization of motor.

Disclosure of Invention

The present invention is directed to solving one of the technical problems of the prior art or the related art.

To this end, a first aspect of the invention proposes a rotor.

A second aspect of the invention proposes an electric machine.

A third aspect of the invention provides a food processor.

A fourth aspect of the present invention provides an air blowing device.

A fifth aspect of the invention proposes a household appliance.

A sixth aspect of the invention provides an electric vehicle.

A seventh aspect of the present invention proposes a power generation device.

In view of this, according to the present invention, there is provided a rotor comprising: the turntable comprises a first bracket and a second bracket, and the first bracket and the second bracket enclose a containing space; and the magnetic piece is arranged in the accommodating space.

The rotor provided by the invention comprises a rotary disc and a magnetic part, wherein the rotary disc comprises a first support and a second support, the first support and the second support enclose to form an accommodating space for accommodating the magnetic part, and the magnetic part is accommodated in the accommodating space. This application is through replacing the rotor core that the axial piled up silicon steel sheet constructed among the correlation technique with first support and second support, is favorable to alleviateing the weight of rotor on the one hand, reduces the volume of rotor, and on the other hand is because first support and second support are difficult for appearing loosely to guarantee rotor structure's stability. Moreover, because the first bracket and the second bracket are not easy to loose, a rotor end ring for compressing the first bracket and the second bracket does not need to be separately arranged, and the weight of the rotor is further reduced. Moreover, through holding the magnetic part in first support and second support, the thickness of rotor has been reduced, and then reduces the thickness of motor, is favorable to realizing the lightweight and the miniaturization of motor, effectively guarantees the installation stability of magnetic part moreover, avoids the magnetic part to drop from the carousel. In particular, in the case where the magnetic member is interposed between the first bracket and the second bracket, the positioning of the magnetic member in the rotor axial direction can be ensured.

In addition, according to the rotor in the above technical solution provided by the present invention, the following additional technical features may be further provided:

in above-mentioned technical scheme, preferably, accommodation space is divided into the mounting groove, and the mounting groove sets up on first support and/or on the second support, and the magnetic part sets up in the mounting groove.

In this technical scheme, through with accommodation space partition for the mounting groove and assemble the mounting groove with magnetic part in, be favorable to guaranteeing that the magnetic part is firm in the axial of rotor and radial ascending location, avoid magnetic part first support and second support relatively to appear rocking, improve the installation stability of magnetic part, and then improve the structural stability of rotor. Moreover, due to the installation groove, the magnetic part can be conveniently and rapidly installed in place, and the magnetic part is convenient to disassemble.

In any of the above technical solutions, preferably, the number of the magnetic members is one, the magnetic members are annular, the number of the mounting grooves is one, and the mounting grooves are annular grooves; or the number of the magnetic pieces is multiple, the number of the mounting grooves is multiple and is circumferentially distributed around the rotation center line of the turntable, and the plurality of magnetic pieces are arranged in the plurality of mounting grooves.

In this technical scheme, the quantity that can set up magnetic part is one, and whole is the ring-type to through magnetizing in its circumference, form many pairs of magnetic poles, through making every to magnetic pole circumference distribute, be favorable to magnetic part to drive the carousel steady rotation under the effect of the produced magnetic field of stator winding. At this time, the magnetic member is integrally disposed in one mounting groove.

Of course, the number of the magnetic members may be plural, and it is preferable that each magnetic member has a pair of magnetic poles, and by circumferentially distributing the plurality of magnetic members around the rotation center line of the turntable, smooth rotation of the turntable is achieved. At this time, one magnetic member may be disposed in one mounting groove, or a plurality of magnetic members may be disposed in one mounting groove.

In any one of the above technical solutions, preferably, a distance between the mounting groove and an outer edge of the turntable is not more than 4 mm.

In this technical scheme, the interval of mounting groove and carousel border is no longer than 4mm, and mounting groove and carousel border have less interval promptly to make the interval of magnetic part and carousel border less, this kind of structure can be pressed close to the setting with magnetic part and stator, does benefit to the magnetic part and receives the effort that stator magnetic field produced steadily.

In any of the above technical solutions, preferably, each mounting groove includes a first mounting groove and a second mounting groove, the first mounting groove is disposed on the first support, and the second mounting groove is disposed on the second support; the first mounting groove and the second mounting groove are distributed oppositely and accommodate the magnetic piece together; or the first mounting grooves and the second mounting grooves are distributed in a staggered mode and are used for accommodating part of the magnetic pieces respectively.

In the technical scheme, the first mounting groove is formed in the first support, the second mounting groove is formed in the second support, the first mounting groove and the second mounting groove can be distributed relatively, namely the position of the first mounting groove on the first support corresponds to the position of the second mounting groove on the second support, and therefore the first mounting groove and the second mounting groove jointly enclose an accommodating cavity for accommodating a magnetic piece. Of course, the positions of the first mounting grooves on the first support and the positions of the second mounting grooves on the second support may be staggered, that is, the first mounting grooves and the second mounting grooves respectively accommodate part of the magnetic members. At this time, in the case that the number of the magnetic members is one, the first mounting groove and the second mounting groove each accommodate a part of the magnetic member; and in case that the number of the magnetic members is plural, the first mounting groove and the second mounting groove accommodate different magnetic members.

Above-mentioned two kinds of modes homoenergetic plays stably holding effect to the magnetic part, avoids the magnetic part first support and second support relatively to appear rocking.

In any of the above solutions, preferably, the first bracket and the second bracket are butted together.

In this technical scheme, first support and second support assemble with the mode of butt joint, and the assembly method of butt joint is convenient for carry out the dismouting to first support and second support, improves the convenience of assembling process, and first support and second support butt joint are in the same place and make the difficult gap that appears between the two, avoid magnetic member to break away from first support and second support.

In any of the above technical solutions, preferably, the first bracket is arranged around the outer periphery of the second bracket; the mounting groove is arranged on one side face, facing the second support, of the first support, or the mounting groove is arranged on one side face, facing the first support, of the second support.

In this technical scheme, first support encloses the periphery of establishing at the second support to realize the butt joint assembly of first support and second support, the mounting groove sets up on the side of first support orientation second support, thereby after carrying out the butt joint assembly with first support and second support, the mounting groove is located the inside of first support and second support, thereby makes the magnetic part of assembling to the mounting groove difficult break away from first support and second support, improves the structural stability of rotor.

In addition, also can set up the mounting groove on the second support is towards a side of first support to after carrying out the butt joint assembly with first support and second support, the mounting groove still is located the inside of first support and second support, thereby makes the magnetic part of assembling to the mounting groove difficult break away from first support and second support, improves the structural stability of rotor.

In any of the above technical solutions, preferably, the number of the magnetic members is one, the magnetic members have pairs of magnetic poles, and each pair of magnetic poles is distributed along the axial direction or the radial direction of the turntable; or the number of the magnetic parts is multiple, each magnetic part is provided with a pair of magnetic poles, and the pair of magnetic poles of each magnetic part are distributed along the axial direction or the radial direction of the rotating disc.

In the technical scheme, under the condition that the number of the magnetic parts is one, the magnetic parts are provided with a plurality of pairs of magnetic poles which exist in pairs, and each pair of magnetic poles are distributed along the axial direction of the turntable, so that the rotor can be matched with the stator positioned on one axial side of the rotor; and in the case where each pair of magnetic poles is distributed in the radial direction of the turntable, the rotor can be made to fit with the stator located at the outer periphery thereof. The rotor and the stator are distributed in various modes, so that the product diversity is improved.

In addition, in the case where the number of the magnetic members is plural, it is possible to set a pair of magnetic poles for each magnetic member, and it is needless to say that it is also possible to set a plurality of pairs of magnetic poles for each magnetic member. In the case that each magnetic member has a pair of magnetic poles, the pair of magnetic poles of each magnetic member are distributed along the axial direction of the turntable, so that the magnetic member can be matched with the stator positioned on one side of the axial direction of the turntable; and in the case where a pair of magnetic poles of each magnetic member are distributed in the radial direction of the turntable, the rotor can be made to fit with the stator on one side in the circumferential direction thereof. The rotor and the stator are distributed in various modes, so that the product diversity is improved.

Of course, each pair of magnetic poles present in pairs on the magnetic member may also be distributed not in the axial direction or in the radial direction of the turntable, but in other directions, such as where one of each pair of magnetic poles is directed towards the edge of the turntable. Depending on the particular orientation of the stator windings that are engaged with the rotor.

In any of the above technical solutions, preferably, the turntable is a non-metal turntable or a non-magnetic metal turntable.

In this technical scheme, because the magnetic part holds in the carousel, the carousel sets up to non-metal carousel or non-magnetic conduction metal carousel, and non-metal carousel or non-magnetic conduction metal carousel are difficult for producing the influence to the magnetism of magnetic part to the effort of the production in stator magnetic field can act on the rotor steadily, makes the rotor rotate steadily.

In any of the above technical solutions, preferably, the turntable is a plastic turntable or an aluminum turntable.

In this technical scheme, plastics carousel or aluminium carousel are difficult for producing the influence to the magnetism of magnetic part to the effort of the production of stator magnetic field can act on the rotor steadily, makes the rotor rotate steadily. Moreover, the plastics and the aluminum are lighter, so that the weight of the rotor is reduced, and the weight of the motor is reduced.

In any of the above technical solutions, preferably, the rotor further includes: the rotating shaft is connected with the rotating disc; the bearing is sleeved on the rotating shaft.

In this technical scheme, when the carousel takes place to rotate, the carousel drives the pivot and rotates, is connected with external component through the pivot to can drive external component and rotate. In addition, set up the bearing on the carousel and make the pivot set up on the part of other parts through the bearing, the part of other parts provides the support for the pivot, is favorable to improving the stability of pivot.

A second aspect of the invention provides an electrical machine comprising a stator and a rotor as provided in any one of the above claims, whereby the electrical machine provided by the invention has all the benefits of the rotor as provided in any one of the above claims.

In any of the above technical solutions, preferably, the motor further includes: and a bracket for supporting the stator and the rotor.

In this technical scheme, the support supports stator and rotor to make stator and rotor be difficult for appearing rocking, stability when improving the motor operation.

In any of the above technical solutions, preferably, the bracket includes: a stent body; the installing port is arranged on the support body and extends to one end face of the support body, and the installing port is used for supporting the rotor shaft assembly and facilitating the rotor shaft assembly to move out of the installing port.

In this technical scheme, through set up the installing port on the support body to extend to an terminal surface of support body with the installing port, be provided with the opening that link up on this terminal surface width direction (the thickness direction of support body promptly) promptly on an terminal surface of support body, make the rotor shaft subassembly can stretch into this installing port inside through this terminal surface, and set up on the diapire of installing port, can also break away from this installing port through this terminal surface. Support and spacing through the installing port to the rotor shaft subassembly, compare in the correlation technique with the bearing setting in the indoor mode of closed annular bearing, greatly made things convenient for the dismouting of rotor shaft subassembly, simplified the step of changing the rotor, labour saving and time saving, and then be favorable to improving work efficiency.

In the present application, the thickness direction of the holder body is the same as the extending direction of the rotor shaft assembly provided in the mounting port. The shaft assembly of the rotor comprises a rotating shaft and a bearing sleeved on the rotating shaft, and the rotating shaft is erected in the mounting port through the bearing.

In any of the above solutions, preferably, the stator has a mating surface that mates with the rotor, and the mating surface is disposed opposite to a part of the outer peripheral surface of the rotor so that the rotor can be separated from the stator in the radial direction or the axial direction thereof. The stator teeth are arranged on the stator, and the end surfaces of the stator teeth correspond to the surfaces of the stator to form matching surfaces of the stator.

In this technical scheme, the stator is located the outside of rotor, and the surface that cooperatees with the rotor on the stator is the fitting surface, and the fitting surface sets up with partial outer peripheral face of rotor relatively, and the fitting surface surrounds partial outer peripheral face of rotor, and does not completely surround the rotor for the rotor can be followed its radial direction and stator separation. Specifically, because the fitting surface sets up with partial outer peripheral face of rotor relatively, also form the opening in the radial direction of stator, thereby make the rotor can break away from the stator by the opening part, compare in the confined annular stator structure among the correlation technique, the stator of this application only surrounds partial outer peripheral face of rotor, make the rotor can separate with the stator along radial direction or axial direction, thereby make stator and rotor convenient to detach and installation more in the motor, be convenient for follow-up routine maintenance to the motor, can be with rotor and driven piece integrative setting, so that use the product structure of the motor that this application provided more simply, and because the rotor can conveniently break away from the stator, the quick dismantlement of driven piece has been realized.

Particularly, when the motor is applied to the food processor, the rotor and the cup body of the food processor can be installed together, and the stator is installed on the base of the food processor, so that the rotor is separated from the base along with the cup body, namely, the base does not need to be internally provided with the integral motor, the integral height of the base can be reduced, and the height of the integral food processor is reduced. In addition, compare annular stator in correlation technique, this application sets up the stator into non-confined structure for the weight of stator becomes light, thereby is favorable to realizing the lightweight of whole product, and convenience of customers draws the use, and occupation space diminishes, is convenient for accomodate.

In any of the above technical solutions, preferably, the stator includes: a stator core having stator teeth thereon; at least two stator windings, at least two stator windings set up respectively on the stator tooth.

In the technical scheme, the stator comprises a stator core, at least two stator teeth are arranged on the stator core, a stator winding is arranged on each stator tooth, the stator winding can generate a magnetic field under the condition of electrifying, and the rotor rotates under the action of the magnetic field; the stator winding is used for being connected with a power supply to generate a magnetic field.

In any of the above technical solutions, preferably, the number of the stators is plural, and the plural stators are arranged in a combined manner or arranged outside the rotor in a dispersed manner.

In this technical scheme, according to actual conditions and user demand, can set up a plurality of stators in the outside of rotor in the motor, a plurality of stators can set up together, also can the dispersion setting around the rotor, have improved the flexibility that the stator of motor set up, and then have improved the suitability of motor. It is understood that, in the case where the number of the stators is plural, there is at least one opening between the plural stators through which the rotor is separated from the stators in the radial direction thereof.

In any of the above technical solutions, preferably, the stator includes: a stator core having stator teeth thereon; at least one stator winding, the at least one stator winding is disposed on the stator teeth.

In the technical scheme, based on the condition that the number of the stators is multiple, each stator comprises a stator core and at least one stator winding, the stator core is provided with stator teeth, the at least one stator winding is arranged on the stator teeth, and the stator windings of the multiple stators can jointly generate a magnetic field under the condition of power-on, so that the rotor assembly rotates under the action of the magnetic field.

It will be appreciated that in the case where there are a plurality of stators, each stator may comprise a stator winding, and the plurality of stators in combination have a plurality of stator windings, the plurality of stator windings being energised together to generate a magnetic field, thereby causing the rotor assembly to rotate under the influence of the magnetic field.

Preferably, in the case that each stator core has a plurality of stator teeth, the plurality of stator teeth are distributed on the stator core at intervals, so that an interval is formed between two adjacent stator teeth, thereby forming an accommodating space for the stator winding and avoiding the stator winding on two adjacent stator teeth from contacting.

In any of the above technical solutions, preferably, the distances between the end surfaces of the stator teeth close to the rotor and the rotation center of the rotor are equal.

In the technical scheme, the distances between each stator tooth and the rotating center of the rotor are equal, and the stator windings are arranged on the stator teeth, so that the magnetic force generated by the magnetic fields generated by the plurality of stator windings on the rotor is balanced, and the stability of the rotor in the rotating process is improved.

In any of the above technical solutions, preferably, the number of the stator teeth is two, and the stator windings on the two stator teeth are sequentially energized and have the same polarity; or the number of the stator teeth is two, the stator windings on the two stator teeth are electrified at the same time and have different polarities, and the magnetic poles of the stator windings on the two stator teeth are alternated.

In the technical scheme, when two stator teeth are arranged in a stator, two schemes for driving a rotor exist, wherein one scheme is that stator windings on the two stator teeth are sequentially electrified, the polarities of the two stator windings generated during electrification are the same, according to the magnetic attraction principle, magnetic force generated by the stator windings acts on the rotor to enable the rotor to rotate, the two stator windings are sequentially electrified, and the two stator windings sequentially generate acting force on the rotor so as to drive the rotor to continuously rotate; the other type is that the stator windings on the two stator teeth are electrified simultaneously, the two stator windings generate different polarities when electrified, the magnetic force generated by the stator windings acts on the rotor to enable the rotor to rotate, in addition, in the process of controlling the rotor to rotate by electrifying, the polarities of the two stator windings are changed alternately, so that the two stator windings sequentially generate the magnetic forces with different polarities, namely, the two stator windings sequentially generate acting forces on different magnetic poles on the rotor, and the rotor is driven to rotate continuously. It can be understood that two stator winding arrangement schemes can be selected according to actual conditions and working requirements when the stator is arranged, so that the flexibility of stator arrangement of the motor is further enhanced, and the applicability of the motor is improved.

In any of the above technical solutions, preferably, the number of the stator teeth is greater than or equal to 3, and the polarities of the stator windings on any two adjacent stator teeth are different.

In this technical solution, when the number of the stator teeth is greater than or equal to 3, preferably, two adjacent stator windings are energized together, and the polarities of the two windings are opposite, so that the rotor is subjected to a tangential force, thereby providing power for the rotation of the rotor.

In any of the above technical solutions, preferably, the number of the stator windings is 3N, and the number of the magnetic poles of the magnetic member of the rotor is 4M; wherein N is a positive integer and M is a positive integer.

In the technical scheme, the number of the stator windings is limited, namely the number of the stator windings is an integral multiple of 3, the number of the magnetic poles of the magnetic part in the rotor is an integral multiple of 4, the generated magnetic field is more stable due to the arrangement mode, the stator can be better matched with the rotor, and therefore the output efficiency of the motor is higher.

In any of the above technical solutions, preferably, the motor further includes: and the magnetic judgment device is arranged along the circumferential direction of the rotor and is used for acquiring the rotating direction of the rotor relative to the stator.

In this technical scheme, through set up magnetism judgement device at the circumferential direction position of rotor, when the motor operation, can judge the direction of rotation of rotor.

A third aspect of the present invention provides a food processor comprising a motor as provided in any one of the above-mentioned aspects, whereby the food processor provided by the present invention has all the benefits of the motor as provided in any one of the above-mentioned aspects.

In any of the above technical solutions, preferably, the food processor further includes: and the cutter is connected with the rotor.

In the technical scheme, the rotor drives the cutter to rotate, so that the stirring cutter can realize the functions of stirring, crushing and the like, and the working requirement of the air supply device is met.

Of course, the cutter can be directly connected with the rotary disc of the rotor, and the structure of the rotor is simplified in a mode that a rotating shaft is not required to be arranged on the rotary disc.

In any of the above technical solutions, preferably, the food processor further includes: cup and base, stator detachably sets up on the base, and the rotor sets up on the cup.

Under the condition that the stator is provided with a matching surface matched with the rotor, and the matching surface is arranged opposite to part of the peripheral surface of the rotor, the rotor can be separated from the stator in the radial direction or the axial direction of the rotor, so that the rotor can be separated from the base along with the cup body, an integral motor does not need to be installed in the base, the height of the base is reduced, and the integral height of the food processor is reduced. In addition, compare annular stator in correlation technique, this application sets up the stator into non-confined structure for the weight of stator becomes light, thereby is favorable to realizing the lightweight of whole product, and convenience of customers draws the use, and occupation space diminishes, is convenient for accomodate.

A fourth aspect of the present invention provides an air supply device, wherein the air supply device includes the motor provided in any one of the above technical solutions, so that the air supply device provided by the present invention has all the benefits of the motor provided in any one of the above technical solutions.

In the above technical solution, preferably, the air supply device further includes a fan blade, and the fan blade is connected to the rotor.

In the technical scheme, the rotor drives the fan blades to rotate, so that the fan blades can realize a fan function, and the working requirement of the air supply device is met.

Specifically, the fan blades can be connected with the rotating shaft of the rotor, the fan blades are driven to rotate through the rotating shaft, the fan blades can be directly connected with the rotating disc of the rotor, and the structure of the rotor is simplified in a mode that the rotating shaft is not required to be arranged on the rotating disc.

A fifth aspect of the present invention provides a household appliance comprising the motor provided in any one of the above technical solutions, so that the household appliance provided by the present invention has all the benefits of the motor provided in any one of the above technical solutions.

A sixth aspect of the present invention provides an electric vehicle including the electric machine provided in any one of the above-described aspects, and therefore the electric vehicle provided by the present invention has all the benefits of the electric machine provided in any one of the above-described aspects.

A seventh aspect of the present invention provides a power generation device, wherein the power generation device comprises the motor provided in any one of the above technical solutions, and therefore the power generation device provided by the present invention has all the benefits of the motor provided in any one of the above technical solutions.

Additional aspects and advantages of 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 shows a schematic structural view of a motor of an embodiment of the present invention;

fig. 2 shows a partial structural schematic view of an electric machine according to an embodiment of the invention;

FIG. 3 shows a cross-sectional structural schematic of an electric machine of one embodiment of the present invention;

fig. 4 shows another partial structural view of the motor of an embodiment of the present invention;

FIG. 5 shows a schematic cross-sectional view of a rotor of an embodiment of the present invention;

FIG. 6 shows another cross-sectional schematic view of a rotor of an embodiment of the present invention;

fig. 7 shows a schematic structural view of an electric machine according to an embodiment of the invention;

fig. 8 shows another structural schematic of the motor of an embodiment of the present invention;

FIG. 9 shows a schematic structural view of a stator of one embodiment of the present invention;

fig. 10 is a schematic structural view showing a stator core according to an embodiment of the present invention;

fig. 11 shows a schematic configuration of a food processor according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 11 is:

1 turntable, 11 first support, 12 second support, 2 magnetic parts, 3 mounting grooves, 31 first mounting groove, 32 second mounting groove, 4 rotating shafts, 5 stators, 51 stator iron cores, 52 stator windings, 53 stator teeth, 6 supports, 61 support bodies, 611 mounting openings, 8 food processors, 81 cups, 82 bases and 9 rotors.

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 in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The rotor 9, motor and food processor 8 of some embodiments of the first aspect of the present invention are described below with reference to fig. 1 to 11.

The first embodiment is as follows:

a rotor 9, as shown in connection with fig. 1 to 6, comprising: the rotary table comprises a rotary table 1 and a magnetic part 2, wherein the rotary table 1 comprises a first support 11 and a second support 12, and the first support 11 and the second support 12 enclose a containing space; the accommodation space is partitioned into mounting grooves 3, and the magnetic member 2 is disposed in the mounting grooves 3.

In this embodiment, the first bracket 11 and the second bracket 12 replace a rotor core constructed by axially stacked silicon steel sheets in the related art, which is beneficial to reducing the weight of the rotor 9 and the volume of the rotor 9 on the one hand, and on the other hand, the first bracket 11 and the second bracket 12 are not easy to loosen, so that the structural stability of the rotor 9 is ensured. In addition, the thickness of the rotor 9 can be reduced by accommodating the magnetic member 2 in the first bracket 11 and the second bracket 12, and the thickness of the motor is reduced, thereby realizing the light weight and the miniaturization of the motor. In addition, through setting up magnetic part 2 in mounting groove 3, be favorable to guaranteeing that magnetic part 2 is firm in the axial of rotor 9 and radial ascending location, avoid magnetic part 2 to appear rocking relative first support 11 and second support 12, improve magnetic part 2's installation stability.

In a specific embodiment, as shown in fig. 5 and 6, the rotor 9 includes one magnetic member 2, the magnetic member 2 is in a ring shape, and the magnetic member 2 has a plurality of pairs of magnetic poles; the number of the mounting grooves 3 is also one, the mounting grooves 3 are annular grooves, and the magnetic members 2 are arranged in the mounting grooves 3.

In another embodiment, as shown in fig. 2 to 4, the rotor 9 includes eight magnetic members 2, each magnetic member 2 has a pair of magnetic poles, the number of the mounting slots 3 is also eight and is circumferentially distributed around the rotation center line of the turntable 1, and the eight magnetic members 2 are disposed in the eight mounting slots 3.

Of course, the number of the magnetic members 2 may be other than eight, and may be four, six or ten, or even more, and the like, and may be set as needed. Additionally, the electric machine may be an electric motor or a generator.

Example two:

in any of the above embodiments, the mounting slot 3 is provided on the first bracket 11 or the second bracket 12.

In one embodiment, the first bracket 11 and the second bracket 12 are butted together. The mounting groove 3 is provided on the first bracket 11, and a notch of the mounting groove 3 faces the second bracket 12.

In another embodiment, the first bracket 11 and the second bracket 12 are butted together. The mounting groove 3 is disposed at the second bracket 11, and a notch of the mounting groove 3 faces the first bracket 11.

In another embodiment, the first bracket 11 is arranged around the periphery of the second bracket 12, and the mounting groove 3 is arranged on one side of the first bracket 11 facing the second bracket 12.

In another embodiment, the first bracket 11 is arranged around the outer circumference of the second bracket 12, and the mounting groove 3 is arranged on a side of the second bracket 12 facing the first bracket 11.

Example three:

in contrast to the exemplary embodiment, the mounting groove 3 is provided on the first support 11 and on the second support 12.

In one embodiment, as shown in connection with fig. 2 to 5, each mounting groove 3 includes a first mounting groove 31 and a second mounting groove 32. The first mounting groove 31 is provided on the first bracket 11, and the second mounting groove 32 is provided on the second bracket 12; the first mounting groove 31 and the second mounting groove 32 are distributed opposite to each other for accommodating the magnetic member 2 together.

In another embodiment, each mounting groove 3 includes a first mounting groove 31 and a second mounting groove 32, the first mounting groove 31 is provided on the first bracket 11, and the second mounting groove 32 is provided on the second bracket 12; the first mounting grooves 31 are staggered with the second mounting grooves 32, that is, each first mounting groove 31 and each second mounting groove 32 accommodate a part of the magnetic member 2.

Specifically, in the case where the number of the magnetic members 2 is one, the number of the mounting grooves 3 is one, and the first mounting groove 31 and the second mounting groove 32 each accommodate a part of the magnetic members 2. And in case that the number of the magnetic members 2 is plural, the number of the mounting grooves 3 is plural, and the first mounting groove 31 and the second mounting groove 32 accommodate different magnetic members 2.

Both the two modes can stably hold the magnetic part 2, and the magnetic part 2 is prevented from shaking relative to the first support 11 and the second support 12.

Example four:

in some embodiments, as shown in fig. 5 and 6, the number of the magnetic members 2 is one, and the magnetic members 2 have a plurality of pairs of magnetic poles existing in pairs. Each pair of magnetic poles are distributed along the axial direction of the turntable 1, so that the rotor 9 is convenient to be matched with the stator 5 positioned on one axial side of the rotor; or each pair of magnetic poles is distributed along the radial direction of the rotating disc 1, so that the rotor 9 is convenient to be matched with the stator 5 positioned on the periphery of the rotor.

In some embodiments, as shown in fig. 2, the number of the magnetic members 2 is plural, and each magnetic member 2 has a pair of magnetic poles. A pair of magnetic poles of each magnetic part is distributed along the axial direction of the rotary table 1, so that the rotor 9 is convenient to be matched with the stator 5 positioned on one axial side of the rotary table, or a pair of magnetic poles of each magnetic part is distributed along the radial direction of the rotary table 1, so that the rotor 9 is convenient to be matched with the stator 5 positioned on the periphery of the rotary table.

Example five:

in any of the above-mentioned embodiments, the interval between mounting groove 3 and the outer edge of carousel 1 is no longer than 4mm, and mounting groove 3 and the outer edge of carousel 1 have less interval promptly to make the interval between magnetic part 2 and the outer edge of carousel 1 less, this kind of structure can be close to magnetic part 2 and stator 5 and set up, does benefit to magnetic part 2 and receives the effort that stator 5 magnetic field produced steadily.

Example six:

in any of the above embodiments, the turntable 1 is a non-metal turntable or a non-magnetic metal turntable. The turntable is not easily affected by the magnetism of the magnetic member 2, so that the acting force generated by the magnetic field of the stator 5 can be stably applied to the rotor 9, and the rotor 9 can be stably rotated.

In one embodiment, the turntable 1 is a plastic turntable or an aluminum turntable. Not only can the magnetism of magnetic part 2 not be influenced, moreover, plastics and aluminium material are lighter, are favorable to alleviateing the weight of rotor 9 to reduce the weight of motor.

Example seven:

a rotor 9 comprising: the rotary table comprises a rotary table 1 and a magnetic part 2, wherein the rotary table 1 comprises a first support 11 and a second support 12, and the first support 11 and the second support 12 enclose a containing space; the magnetic member 2 is stuck in the accommodation space. In particular, the adhesive can be adhered to the first bracket and/or the second bracket.

Example eight:

in any of the above embodiments, as shown in fig. 1 and 2, the rotor 9 further includes: the rotating shaft 4 is connected with the rotating disc 1, and the bearing is sleeved on the rotating shaft 4.

In other embodiments, the external components are optionally assembled directly to the turntable 1, and the rotating shaft 4 is not required, thereby simplifying the structure of the motor.

Embodiments of a second aspect of the invention provide an electric machine. As shown in fig. 1, the motor comprises a stator 5 and a rotor 9 provided in any of the above embodiments, so that the motor provided by the present invention has all the benefits of the rotor 9 provided in any of the above technical solutions.

The whole stator can extend along a straight line, namely the stator is arranged straightly; the whole stator can also extend along an arc, namely the two opposite side surfaces of the stator are in a fan ring shape.

In any of the above embodiments, the motor further includes a bracket 6, the bracket 6 is used for supporting the stator 5 and the rotor 9, and the supporting action of the bracket 6 on the stator 5 and the rotor 9 can make the stator 5 and the rotor 9 less prone to shaking, so as to improve the stability of the motor during operation.

In a specific embodiment, as shown in fig. 7, the bracket 6 includes a bracket body 61 and a mounting port 611, and the mounting port 611 is provided on the bracket body 61 and extends to an end surface of the bracket body 61, that is, the mounting port 611 penetrates through an opening in a width direction of the end surface (that is, a thickness direction of the bracket body 61) on the end surface of the bracket body 61, so that the rotor 9 shaft assembly can protrude into the mounting port 611 through the end surface and be bridged in the mounting port 611, and so that the rotor 9 shaft assembly can be removed from the mounting port 611 through the end surface. Facilitating rapid placement of the rotor 9 on the support 6 and rapid removal from the support 6. In the present application, the thickness direction of the holder body 61 is the same direction as the extending direction of the shaft assembly of the rotor 9 provided in the mounting port 611. The rotor 9 shaft assembly comprises a rotating shaft 4 and a bearing sleeved on the rotating shaft 4, and the rotating shaft 4 is overlapped in the mounting hole 611 through the bearing.

Wherein, rotor 9's axle subassembly includes pivot 4 and bearing, and bearing kit is on pivot 4, and pivot 4 sets up on installing port 611 through the bearing, and support body 61 guarantees pivot 4's stability for pivot 4 provides the support.

Example nine:

as shown in fig. 1 and 8, in any of the above embodiments, the stator 5 has a mating surface that mates with the rotor 9, the mating surface being disposed opposite to a portion of the outer peripheral surface of the rotor 9 so that the rotor 9 can be separated from the stator 5 in the radial direction or the axial direction thereof.

The surface of the stator 5 corresponding to the end surface of the stator tooth 53 constitutes a mating surface of the stator 5.

In this embodiment, the stator 5 is located outside the rotor 9, the surface of the stator 5 that is engaged with the rotor 9 is a mating surface, and the mating surface is disposed opposite to a portion of the outer peripheral surface of the rotor 9, that is, the mating surface surrounds the portion of the outer peripheral surface of the rotor 9 and at most half of the outer peripheral surface of the rotor 9, so as to avoid the rotor 9 from being embedded in the stator 5 and being difficult to separate from the rotor 9, and ensure that the rotor 9 can be separated from the stator 5 along the radial direction or the axial direction. Since the mating surface is disposed opposite to a part of the outer peripheral surface of the rotor 9, the stator 5 is opened in the radial direction, so that the rotor 9 can be separated from the stator 5 from the opening, compared with the closed annular stator 5 structure in the related art. The stator 5 of this application only surrounds the partial outer peripheral face of rotor 9, make rotor 9 can separate with stator 5 along radial direction or axial direction, thereby make stator 5 and rotor 9 convenient to detach and installation more in the motor, be convenient for follow-up daily maintenance to the motor, can with rotor 9 with by the integrative setting of driving piece, so that the product structure of the motor that uses this application to provide is simpler, and because rotor 9 can conveniently break away from stator 5, realized being dismantled by the quick of driving piece.

Particularly, when the motor is applied to the food processor 8, the rotor 9 can be mounted with the cup 81 of the food processor 8, and the stator 5 can be mounted on the base 82 of the food processor 8, so that the rotor 9 is separated from the base 82 along with the cup 81, that is, the base 82 does not need to be provided with an integral motor, the overall height of the base 82 can be reduced, and the height of the overall food processor 8 can be reduced. In addition, compare annular stator in the correlation technique, this application sets up stator 5 into non-confined structure for stator 5's weight becomes light, thereby is favorable to realizing the lightweight of whole product, and convenience of customers draws the use, and occupation space diminishes, is convenient for accomodate.

In other embodiments, the stator 5 may surround more than half of the outer peripheral surface of the rotor 9 or completely surround the outer peripheral surface of the rotor 9, and the opening on one side of the stator 5 is smaller or is not provided with an opening, so that the stator 5 and the rotor 9 are not easily separated, and further the stator 5 and the rotor 9 are conveniently detached and installed at the same time, thereby reducing the processes of installing the rotor 9 and the stator 5 respectively, and being beneficial to improving the working efficiency.

Example ten:

referring to fig. 1, 9 and 10, the motor includes a stator 5, the stator 5 includes a stator core 51 and at least two stator windings 52, the stator core 51 has at least two stator teeth 53, and the at least two stator windings 52 are respectively disposed on the at least two stator teeth 53.

In another embodiment, the motor includes a plurality of stators 5, and the plurality of stators 5 are arranged in combination or dispersed outside the rotor 9. Each stator 5 includes a stator core 51 and at least one stator winding 52, the stator core 51 has at least one stator tooth 53 thereon, and the at least one stator winding 52 is respectively disposed on the at least one stator tooth 53.

The number of stators in the motor can be set according to the power requirement, the type and weight of the load and the like.

Example eleven:

in any of the above embodiments, the end faces of the stator teeth close to the rotor 9 are all equidistant from the center of rotation of the rotor 9. Because the stator windings 52 are arranged on the stator teeth 53, the magnetic force generated by the magnetic field generated by the plurality of stator windings 52 to the rotor 9 is balanced, and the stability of the rotor 9 in the rotating process is improved.

In one embodiment, the number of the stator teeth 53 is two, and the stator windings 52 on the two stator teeth 53 are sequentially energized and have the same polarity; or the number of the stator teeth 53 is two, the stator windings 52 on the two stator teeth 53 are energized simultaneously and have different polarities, and the magnetic poles of the stator windings 52 on the two stator teeth 53 alternate.

In this embodiment, when two stator teeth 53 are provided in the stator 5, there are two schemes for driving the rotor 9, one of which is that the stator windings 52 on the two stator teeth 53 are sequentially energized, and the polarities generated by the two stator windings 52 when energized are the same, and the two stator windings 52 are sequentially energized, so that the two stator windings 52 sequentially generate the acting force on the rotor 9, thereby driving the rotor 9 to rotate continuously; the other is that the stator windings 52 on the two stator teeth 53 are simultaneously electrified, the two stator windings 52 generate different polarities when electrified, the magnetic force generated by the stator windings 52 acts on the rotor 9 to rotate the rotor 9, and in the process of controlling the rotor 9 to rotate by electrifying, the polarities of the two stator windings 52 are alternately changed, so that the two stator windings 52 sequentially generate magnetic forces with different polarities, that is, the two stator windings 52 sequentially generate acting forces on different magnetic poles on the rotor 9, thereby driving the rotor 9 to rotate continuously.

Specifically, two arrangement schemes of the stator winding 52 are selected according to actual conditions and working requirements, so that the flexibility of arrangement of the stator 5 of the motor is further enhanced, and the applicability of the motor is improved.

Wherein, the first driving scheme takes the conducting polarity of the stator winding as N as an example: specifically, when the stator windings 52 on the two stator teeth 53 are sequentially energized and both of them have N poles, the first stator winding 52 is first energized to generate an N-pole magnetic field, according to the principle that the magnetic poles attract each other in opposite polarities, the S pole of the magnetic member 2 in the rotor 9 is attracted to the position of the first stator winding 52, the N pole of the magnetic member 2 passes through the second stator winding 52, the second stator winding 52 is closer to the N pole of the magnetic member 2 in the rotor 9, the first stator winding 52 is de-energized and the second stator winding 52 is energized simultaneously, the second stator winding 52 generates an N-pole magnetic field, according to the principle that like poles repel each other, the N-pole magnetic field generated by the second stator winding 52 pushes the N pole of the magnetic member 2 to move continuously in the direction of the first stator winding 52, at this time, the second stator winding 52 is de-energized, the first stator winding 52 is energized, so that the first stator winding 52 generates an N-pole magnetic field to push the N pole of the magnetic member 2 to move continuously, and the second stator winding 52 is energized, so that the rotor 9 rotates continuously in a circulating manner.

Wherein, the second driving scheme is that the stator windings 52 on the two stator teeth 53 are energized simultaneously and have different polarities, and the magnetic poles of the stator windings 52 on the two stator teeth 53 are alternated. The following are specific illustrations: specifically, when the first power is applied, the first stator winding 52 generates an N-pole magnetic field, the second stator winding 52 generates an S-pole magnetic field, and the two stator windings 52 are simultaneously applied with power, the first stator winding 52 emits an N-pole magnetic field, according to the principle that the magnetic poles attract each other, the first stator winding 52 attracts the S-pole of the magnetic member 2 of the rotor 9, the second stator winding 52 attracts the N-pole of the magnetic member 2 of the rotor 9, a tangential force is formed on the rotor 9, the magnetic poles of the first stator winding 52 and the second stator winding 52 are switched, the first stator winding 52 generates an S-pole magnetic field, the second stator winding 52 generates an N-pole magnetic field, according to the principle that the magnetic poles repel each other in the same polarity, the first stator winding 52 and the second stator winding 52 generate repulsive forces to the S-pole of the magnetic member 2 and the N-pole of the magnetic member 2, respectively, so that the rotor 9 continues to rotate, at this time, the magnetic poles of the first stator winding 52 and the second stator winding 52 are switched, and the rotor 9 is rotated continuously by the cycle. In any of the above embodiments, optionally, the number of the stator teeth 53 is greater than or equal to 3, and the polarities of the stator windings 52 on any two adjacent stator teeth 53 are different.

In another embodiment, the number of the stator teeth 53 is greater than or equal to 3, and the polarity of the stator winding 52 on any two adjacent stator teeth 53 is different.

In this embodiment, when the number of the stator teeth 53 is greater than or equal to 3, it is preferable that two adjacent stator windings 52 are energized together, and the polarities of the two adjacent windings are opposite, so that the rotor 9 is subjected to a tangential force to provide power for the rotation of the rotor 9.

Specifically, when the number of the stator teeth 53 is set to three, the first stator winding 52 and the second stator winding 52 are energized, the first stator winding 52 generates an N-pole magnetic field to attract the S-pole of the magnetic member 2 in the rotor 9, the second stator winding 52 generates an S-pole magnetic field to attract the N-pole of the magnetic member 2 in the rotor 9, a tangential force is applied to the rotor 9, then the second stator winding 52 and the third stator winding 52 are energized, the second stator winding 52 generates an N-pole magnetic field to repel the N-pole of the magnetic member 2 in the rotor 9, the third stator winding 52 generates an S-pole magnetic field to repel the S-pole of the magnetic member 2 in the rotor 9, the rotor 9 continues to rotate, and the cycle is repeated to make the rotor 9 rotate continuously.

In any of the above embodiments, optionally, the number of the stator windings 52 is 3N, and the number of the magnetic poles of the magnetic member 2 of the rotor 9 is 4M; wherein N is a positive integer and M is a positive integer.

In this embodiment, the number of the stator windings 52 is limited, that is, the number of the stator windings 52 is at least 3, and when the number of the stator windings 52 is more, the number of the stator windings 52 is set to be an integral multiple of 3. The number of the magnetic poles of the magnetic member 2 of the rotor 9 is 4 at least, and when more magnetic poles are needed, the number of the magnetic poles of the magnetic member 2 of the rotor 9 needs to be set to be integral multiple of 4, and the output efficiency of the motor can be higher through the limitation of the number of the stator windings 52 and the limitation of the number of the magnetic poles of the magnetic member 2.

Specifically, when the requirement for the smoothness of the operation of the motor is high, the number of the stator windings 52 can be set to 6 or 9 or more, so that the number of the magnetic poles in the motor is increased, and the operation of the motor is more smooth. And each stator winding 52 is provided on the stator teeth 53, the number of stator teeth 53 should be set to be the same as the number of stator windings 52.

Example twelve:

in any of the above embodiments, the motor further comprises: and magnetic judging means (not shown in the drawings) provided along the circumferential direction of the rotor 9 for acquiring the rotation direction of the rotor 9 relative to the stator 5, wherein the magnetic judging means is provided at a circumferential position of the rotor 9, so that the rotation direction of the rotor 9 can be judged when the motor is operated.

An embodiment of a third aspect of the invention provides a food processor 8. The food processor 8 comprises a motor as provided in any of the above embodiments, and thus the food processor 8 provided by the present invention has all the benefits of the motor provided in any of the above technical solutions.

In any of the above embodiments, the food processor 8 further includes a cutter, the cutter is connected with the rotating shaft 4 of the rotor 9, and the rotor 9 drives the cutter to rotate, so that the cutter can realize functions of stirring, crushing and the like, and the working requirement of the food processor 8 is met.

Of course, the cutter can be directly connected with the rotary disc 1 of the rotor 9, and the mode that the rotary shaft 4 is not arranged on the rotary disc simplifies the structure of the rotor 9.

In one embodiment, as shown in fig. 11, the food processor 8 further comprises: a cup 81 and a base 82, the stator 5 being disposed on the base 82, the rotor 9 being disposed on the cup 81, the cup 81 being detachably disposed on the base 82. The stator 5 has a mating surface that mates with the rotor 9, and the mating surface is disposed opposite a portion of the outer peripheral surface of the rotor 9.

Since the rotor 9 can be separated from the stator 5 in the radial direction or the axial direction thereof, the rotor 9 can be separated from the base 82 together with the cup 81, so that it is not necessary to install an integral motor in the base 82, the height of the base 82 is reduced, and the overall height of the food processor 8 is reduced. In addition, compare annular stator in the correlation technique, this application sets up the stator into non-confined structure for stator 5's weight becomes light, thereby is favorable to realizing the lightweight of whole product, and convenience of customers draws the use, and occupation space diminishes, is convenient for accomodate.

Alternatively, the food processor 8 is any one of a blender, a wall breaking machine, a soymilk maker, a cooking machine, a chef machine, and a cooking machine.

An embodiment of a fourth aspect of the present invention provides an air supply arrangement. The air supply device comprises the motor provided in any one of the above embodiments, so that the air supply device provided by the invention has all the benefits of the motor provided in any one of the above technical schemes.

In the above embodiment, the air supply device further includes the fan blade, the fan blade is connected with the rotor 9, and the rotor 9 drives the fan blade to rotate, so that the fan blade can realize the fan function, and the work requirement of the air supply device is met.

Specifically, the fan blade may be connected to the rotating shaft 4 of the rotor 9, and the fan blade may be driven to rotate by the rotating shaft 4. Of course, the fan blades can be directly connected with the rotating disk of the rotor 9, and the mode that the rotating shaft 4 is not required to be arranged on the rotating disk 1 simplifies the structure of the rotor 9.

An embodiment of a fifth aspect of the invention provides a domestic appliance. The household appliance comprises the motor provided in any one of the above embodiments, so that the household appliance provided by the invention has all the benefits of the motor provided in any one of the above technical solutions.

An embodiment of a sixth aspect of the invention provides an electric vehicle. The electric vehicle comprises the motor provided in any one of the above embodiments, and therefore the electric vehicle provided by the invention has all the benefits of the motor provided in any one of the above technical solutions.

An embodiment of a seventh aspect of the present invention provides a power generation apparatus. The power generation device comprises the motor provided in any one of the above embodiments, so that the power generation device provided by the invention has all the advantages of the motor provided in any one of the above technical schemes.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. 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 description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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 (28)

1. A rotor, comprising:

the turntable comprises a first bracket and a second bracket, and the first bracket and the second bracket enclose a containing space;

and the magnetic part is arranged in the accommodating space.

2. The rotor of claim 1,

the accommodating space is divided into mounting grooves, the mounting grooves are formed in the first support and/or the second support, and the magnetic pieces are arranged in the mounting grooves.

3. The rotor of claim 2,

the number of the magnetic parts is one, the magnetic parts are annular, the number of the mounting grooves is one, and the mounting grooves are annular grooves; or

The quantity of magnetic part is a plurality of, the quantity of mounting groove is a plurality of and centers on the rotation center line circumference of carousel distributes, and is a plurality of the magnetic part sets up in a plurality of the mounting groove.

4. The rotor of claim 2 or 3,

the distance between the mounting groove and the outer edge of the rotary disc is not more than 4 mm.

5. The rotor of claim 2 or 3,

each mounting groove comprises a first mounting groove and a second mounting groove, the first mounting groove is arranged on the first support, and the second mounting groove is arranged on the second support;

the first mounting groove and the second mounting groove are distributed oppositely and accommodate the magnetic piece together; or the first mounting grooves and the second mounting grooves are distributed in a staggered mode and respectively contain part of the magnetic pieces.

6. The rotor of claim 5,

the first bracket is butted with the second bracket.

7. The rotor of claim 2 or 3,

the first bracket is arranged around the periphery of the second bracket in a surrounding manner;

the mounting groove is arranged on one side surface of the first support facing the second support, or

The mounting groove is arranged on one side surface of the second support facing the first support.

8. The rotor of any one of claims 1 to 3,

the number of the magnetic parts is one, the magnetic parts are provided with a plurality of pairs of magnetic poles which exist in pairs, and each pair of magnetic poles are distributed along the axial direction or the radial direction of the turntable; or

The number of the magnetic parts is multiple, each magnetic part is provided with a pair of magnetic poles, and the pair of magnetic poles of each magnetic part are distributed along the axial direction or the radial direction of the rotating disc.

9. The rotor of any one of claims 1 to 3,

the rotary disc is a plastic rotary disc or an aluminum rotary disc.

10. The rotor of any one of claims 1 to 3, further comprising:

the rotating shaft is connected with the rotating disc;

and the bearing is sleeved on the rotating shaft.

11. An electric machine, comprising:

a stator; and

a rotor according to any one of claims 1 to 10.

12. The electric machine of claim 11, further comprising:

a support for supporting the stator and the rotor.

13. The electric machine of claim 12, wherein the bracket comprises:

a stent body;

the mounting port is arranged on the support body and extends to one end face of the support body, and the mounting port is used for supporting the rotor shaft assembly of the rotor and facilitating the rotor shaft assembly to be moved out of the mounting port.

14. The electrical machine according to any of the claims 11 to 13,

the stator is provided with a matching surface matched with the rotor, and the matching surface is arranged opposite to part of the peripheral surface of the rotor so that the rotor can be separated from the stator along the radial direction or the axial direction of the rotor.

15. The electric machine of claim 14, wherein the stator comprises:

a stator core having stator teeth thereon;

at least two stator windings, the at least two stator windings are respectively arranged on the stator teeth.

16. The electric machine of claim 14,

the number of the stators is a plurality, and the stators are arranged on the outer side of the rotor in a combining way or a dispersing way.

17. The electric machine of claim 16, wherein the stator comprises:

a stator core having stator teeth thereon;

at least one stator winding disposed on the stator teeth.

18. The electrical machine according to claim 14 or 16,

the distances between the end surfaces of the stator teeth close to the rotor and the rotation center of the rotor are equal.

19. The electric machine of claim 14 or 16, wherein the stator comprises:

the number of the stator teeth is two, and the stator windings on the two stator teeth are sequentially electrified and have the same polarity; or

The number of the stator teeth is two, the stator windings on the two stator teeth are electrified at the same time and have different polarities, and the magnetic poles of the stator windings on the two stator teeth are alternated.

20. The electrical machine according to claim 14 or 16,

the number of the stator windings is 3N, and the number of the magnetic poles of the magnetic part of the rotor is 4M;

wherein N is a positive integer and M is a positive integer.

21. The electric machine of any of claims 11 to 13, further comprising:

and the magnetic judgment device is arranged along the circumferential direction of the rotor and is used for acquiring the rotating direction of the rotor relative to the stator.

22. A food processor, comprising:

an electric machine as claimed in any one of claims 11 to 21.

23. The food processor of claim 22, further comprising:

a cutter coupled to the rotor.

24. An air supply device, comprising:

an electric machine as claimed in any one of claims 11 to 21.

25. The air supply apparatus of claim 24, further comprising:

fan blades connected with the rotor.

26. A household appliance, characterized in that it comprises:

an electric machine as claimed in any one of claims 11 to 21.

27. An electric vehicle, characterized by comprising:

an electric machine as claimed in any one of claims 11 to 21.

28. An electrical power generation device, comprising:

an electric machine as claimed in any one of claims 11 to 21.

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