CN112421830A - Motor, food processor and air supply device - Google Patents
Motor, food processor and air supply device Download PDFInfo
- Publication number
- CN112421830A CN112421830A CN201910785940.9A CN201910785940A CN112421830A CN 112421830 A CN112421830 A CN 112421830A CN 201910785940 A CN201910785940 A CN 201910785940A CN 112421830 A CN112421830 A CN 112421830A
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- Prior art keywords
- rotor
- stator
- rotating shaft
- electric machine
- rotation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
- H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/003—Couplings; Details of shafts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention provides a motor, a food processor with the motor and an air supply device, wherein the motor comprises a stator assembly, the stator assembly comprises a stator core, a plurality of first stator windings and a plurality of second stator windings, the plurality of first stator windings are arranged on one side of the stator core, and the plurality of second stator windings are arranged on the other side of the stator core; the first rotor is positioned on one side of the stator assembly, which is provided with a plurality of first stator windings; the second rotor is positioned on one side of the stator assembly, which is provided with a plurality of second stator windings; the first stator windings can drive the first rotor to rotate, and the second stator windings can drive the second rotor to rotate. According to the invention, the plurality of first stator windings and the plurality of second stator windings share one stator core, so that the thickness of the motor is reduced, and the motor is favorably miniaturized and lightened.
Description
Technical Field
The invention belongs to the technical field of motor manufacturing, and particularly relates to a motor, a food processor and an air supply device.
Background
The motor mainly comprises a stator, a rotor, an end cover and the like. Currently, most electric machines have a stator coupled to a rotor to drive an output shaft. However, an output shaft motor has not been able to meet the current demand. In the related art, a gear transmission mechanism is mostly adopted for an output shaft, so that one output is increased, but the gear transmission mechanism has high noise and a complex structure. In the related art, two stators and two rotors are provided to realize two outputs, but the thickness and the size of the whole motor are large, and the motor is not beneficial to miniaturization and light-weight of the 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 an electric machine.
A second aspect of the invention proposes a food processor.
A third aspect of the present invention provides an air blowing device.
In view of this, according to the present invention, there is provided a motor comprising: the stator assembly comprises a stator core, a plurality of first stator windings and a plurality of second stator windings, wherein the plurality of first stator windings are arranged on one side of the stator core, and the plurality of second stator windings are arranged on the other side of the stator core; the first rotor is positioned on one side of the stator assembly, which is provided with a plurality of first stator windings; the second rotor is positioned on one side of the stator assembly, which is provided with a plurality of second stator windings; the first stator windings can drive the first rotor to rotate, and the second stator windings can drive the second rotor to rotate.
According to the motor provided by the invention, the first rotor is arranged on one side of the stator assembly, the second rotor is arranged on the other side of the stator assembly, and the two rotors share one stator core of one stator assembly. Moreover, compared with the prior art that one output shaft is additionally provided with one output only by being provided with the gear transmission mechanism, the motor has the advantages that the gear transmission mechanism is omitted, the structure is simplified, meanwhile, the noise caused by gear transmission is also omitted, and the running noise of the motor is reduced. Two rotors of accessible drive two axis of rotation and rotate, when simplifying the structure, reduce the running noise of motor. The external connecting part can be directly connected to the two rotors, so that an output shaft does not need to be arranged on the rotors, and the structure of the product is further simplified. In addition, through setting up a plurality of first stator windings in one side of stator core, set up a plurality of second stator windings in the opposite side of stator core, because first rotor is located the one side that the stator assembly was provided with a plurality of first stator windings, and the second rotor is located the one side that the stator assembly was provided with a plurality of second stator windings, can make stator magnetic circuit shorter, reduces the magnetic loss. And, through the rotation of a plurality of first stator winding drive first rotors, a plurality of second stator winding drive second rotor rotates for control circuit can give two types of winding power supplies respectively, to two rotors single control, realizes that first rotor and second rotor rotate with different rotational speeds or turn to, and steerable two rotors rotate wantonly, satisfy user's demand.
In addition, according to the motor in the above technical solution provided by the present invention, the following additional technical features may also be provided:
in any of the above technical solutions, preferably, the motor further includes: a first rotating shaft provided on the first rotor; and a second rotation shaft provided on the second rotor.
In this technical scheme, when first rotor rotated, first rotor rotated first axis of rotation and rotated to make first axis of rotation drive an external component and rotate, when the second rotor rotated, the second rotor drove the second axis of rotation and rotates, thereby made the second axis of rotation drive another external component and rotate, set up a stator assembly and just can make the motor drive two external components and rotate, effectively reduced the thickness of motor.
In any of the above technical solutions, preferably, a rotation center line of the first rotation shaft and a rotation center line of the second rotation shaft overlap or are parallel to each other. The position of the two axes of rotation can be adjusted according to the position of the external part.
In any of the above technical solutions, preferably, the first rotating shaft and the second rotating shaft both pass through the second rotor and extend out of an end face of the second rotor facing away from the stator assembly. So that the first rotating shaft and the second rotating shaft can drive the two external connecting parts to rotate on the same side of the second rotor.
In any of the above technical solutions, preferably, the second rotating shaft is a hollow rotating shaft, and the stator core is provided with an axially extending through hole; the first rotating shaft penetrates through the through hole and the second rotating shaft and penetrates through the second rotor through the second rotating shaft.
In this technical scheme, be hollow axis of rotation through setting for the second axis of rotation that is located on the second rotor for first axis of rotation can pass through the through-hole on the stator core and stretch into the second axis of rotation, and finally stretch out the second axis of rotation, and stretch out a terminal surface that the second rotor deviates from the stator assembly along with the second axis of rotation, is favorable to first axis of rotation and the different outer connecting part of second axis of rotation hub connection.
In any of the above solutions, preferably, the first rotating shaft further passes through the first rotor and extends out of an end face of the first rotor facing away from the stator assembly.
In this technical scheme, except that first axis of rotation and second axis of rotation all stretch out the terminal surface that the second rotor deviates from stator assembly, another end of first axis of rotation still stretches out a terminal surface that first rotor deviates from stator assembly for motor in this application can drive three external parts simultaneously and rotate, and then improves the functionality of motor.
In any of the above technical solutions, preferably, the first rotating shaft passes through the first rotor and extends out of an end face of the first rotor facing away from the stator assembly; the second rotating shaft passes through the second rotor and extends out of one end face of the second rotor, and the end face of the second rotor deviates from the stator assembly.
In this technical scheme, first axis of rotation and second axis of rotation can drive two external parts respectively and rotate in stator assembly's both sides, and interference is difficult for appearing in first axis of rotation and second axis of rotation, improves the stability of motor during operation.
In any one of the above technical solutions, preferably, at least one of the first rotating shaft and the second rotating shaft extends into the stator core, and a first bearing is provided between the first rotating shaft and the stator core.
In this technical scheme, first axis of rotation or second axis of rotation can overlap through first bearing and establish on stator core, provide the support for first axis of rotation or second axis of rotation through stator core, are favorable to improving the stability of first axis of rotation or second axis of rotation.
In any of the above technical solutions, preferably, at least one end surface of the stator core is provided with a mounting groove, and the first bearing is disposed in the mounting groove.
In this technical scheme, set up the mounting groove on stator core's a terminal surface or the both ends face, for the accommodation space that first bearing provided, be convenient for first axis of rotation or second axis of rotation are established on stator core through first bearing overlap. Alternatively, in the case where the stator core has a through hole extending axially, the mounting groove is provided around the hole of the through hole.
In any of the above technical solutions, preferably, the stator core is formed by multiple layers of stamped sheets, and the multiple layers of stamped sheets are stacked and distributed in a radial direction of the stator core. Furthermore, the multilayer punching sheet is formed by rolling and folding a punching sheet from inside to outside along a spiral line.
In this technical scheme, constitute by the multilayer towards the piece through setting for stator core, and the multilayer towards the piece radially range upon range of distribution at stator core, if constitute by a towards the piece along the helix from inside to outside book, be favorable to reducing the magnetic resistance, reduce the magnetic loss, improve motor efficiency.
In any of the above technical solutions, preferably, one end surface of the stator core has a plurality of first stator teeth, and the other end surface has a plurality of second stator teeth, and the stator assembly further includes a first insulating member and a second insulating member, the first insulating member is sleeved on the plurality of first stator teeth, and the second insulating member is sleeved on the plurality of second stator teeth; the first stator windings are wound on the first insulating member, and the second stator windings are wound on the second insulating member.
In this technical scheme, establish on a plurality of first stator teeth through adopting first insulating part cover to set up a plurality of first stator windings on first insulating part, be favorable to improving the installation stability of a plurality of first stator windings on the one hand, on the other hand can avoid a plurality of first stator windings and stator core to produce the electricity and be connected, guarantees insulating effect. Similarly, establish on a plurality of second stator teeth through adopting the second insulator cover to set up a plurality of second stator windings on the second insulator, be favorable to improving a plurality of second stator windings's installation stability on the one hand, on the other hand can avoid a plurality of second stator windings and stator core to produce the electricity and be connected, guarantees insulating effect.
In any one of the above technical solutions, preferably, the first insulating member and the second insulating member each include: the first insulating part is attached to one end face of the stator core; the second insulating part is connected with the first insulating part and sleeved on the side wall of the stator tooth; and the third insulating part is connected with the first insulating part and extends from the edge of the first insulating part to the direction of the stator core so as to partially coat the stator core.
In this technical scheme, first insulating part and second insulating part all include first insulating part, second insulating part and third insulating part. First insulating part, second insulating part and third insulating part cooperate in order to realize cladding stator core in a plurality of directions, a plurality of angles and a plurality of dimensionality to separate stator core and stator winding, and then can improve stator assembly's safety in utilization and stability.
Specifically, the second insulating part has a hollow structure, so that the end part of the stator tooth is exposed, and the blocking between the rotor and the stator tooth can be avoided. The second insulating part also has a flanging structure, and the flanging structure plays a role in shielding the stator winding, so that the insulating effect is further improved. The first insulating part and the second insulating part are constructed into annular structures, and then combined with the third insulating part, the stator core is convenient to cover the end of the stator core integrally.
In any of the above technical solutions, preferably, each of the first insulating member and the second insulating member includes a plurality of sub-insulating members, and the plurality of sub-insulating members are integrally formed or assembled together.
In this technical scheme, a plurality of sub-insulators can be integrated into one piece structure, and also first insulator and second insulator are monolithic structure to make first insulator and second insulator have stronger stability, make things convenient for first insulator and the quick machine-shaping of second insulator. The plurality of sub-insulators can also be assembled to form a first insulator and a second insulator, namely the first insulator and the second insulator are of split structures, and the fact that each sub-insulator can accurately cover the designated part of the stator core is guaranteed.
In any of the above technical solutions, preferably, the first rotor and the second rotor each include a turntable and a magnetic member, and the magnetic member is disposed on the turntable.
In this technical scheme, all include carousel and magnetic part through setting for first rotor and second rotor, wherein, acquiescence carousel is non-magnetic conduction carousel, avoided the rotor core structure that is folded by the silicon steel sheet and is formed among the correlation technique, not only be favorable to reducing the weight of motor, and avoided among the correlation technique on the axial folds the rotor core that forms, the magnetic field will pass through the tooth portion and yoke portion and the rotor of stator, just can form the magnetic field return circuit, thereby closed magnetic line of force is the curve form, can appear the condition of great magnetic leakage and loss. The running efficiency of the motor is improved.
Further, the magnetic part is embedded and arranged on the rotating disc. The occupied space of the rotor is reduced, and the installation firmness of the magnetic parts is improved. Of course, the magnetic member may be provided inside the turntable.
In any of the above technical solutions, preferably, the turntable is provided with an accommodating portion, and the magnetic member is located in the accommodating portion; or the number of the magnetic parts is multiple, and the magnetic parts are distributed at intervals along the circumferential direction of the turntable.
In this technical scheme, be provided with the portion of holding on the carousel to set up magnetic part in the portion of holding, in order to guarantee the steady drive of the stable installation of magnetic part and carousel. Specifically, the magnetic member may be of a unitary structure, and one magnetic member is integrally disposed in the accommodating portion, the unitary magnetic member having a plurality of magnetic poles in a circumferential direction thereof. Of course, the magnetic member may also be a split structure, and one magnetic member is provided in each accommodating portion, and each magnetic member has one magnetic pole in one direction, and ensures the magnetic pole fit relationship among a plurality of magnetic members.
In any of the above technical solutions, preferably, the number of the magnetic poles of the magnetic member on the first rotor is the same as or different from the number of the magnetic poles of the magnetic member on the second rotor.
In any of the above technical solutions, preferably, the turntable is a plastic turntable or an aluminum turntable.
In this technical scheme, the carousel is made by plastics or aluminium material for the carousel has lighter weight, and then makes the weight of motor lighter, thereby is convenient for carry and remove the motor, improves the convenience to motor installation.
In any of the above technical solutions, preferably, the motor further includes: a first end cap; the second end cover and the first end cover enclose to form an installation cavity, the stator assembly, the first rotor and the second rotor are arranged in the installation cavity, and the first rotating shaft and the second rotating shaft extend out of the installation cavity; the first rotating shaft part extends into the first end cover, a second bearing is arranged between the first rotating shaft part and the first end cover, and/or the second rotating shaft part extends into the second end cover, and a third bearing is arranged between the second rotating shaft part and the second end cover.
In the technical scheme, the first end cover and the second end cover form a shell of the motor, the first end cover and the second end cover play a role in protecting the stator assembly, the first rotor and the second rotor, and the stator assembly, the first rotor and the second rotor are prevented from being damaged. First pivot axis is lapped through the second bearing and is established on first end cover, and first end cover can provide the support for first pivot axis to the stability of first pivot axis has been improved. The second axis of rotation is established on the second end cover through the third bearing, and the second end cover can provide the support for the second axis of rotation to the stability of second axis of rotation has been improved.
A second aspect of the 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 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: the first cutter is connected with the first rotor; and/or a second cutter coupled to the second rotor.
In the technical scheme, the first rotor drives the first cutter to rotate, and the second rotor drives the second cutter to rotate, so that the first cutter and the second cutter can realize the functions of stirring, crushing and the like, and the working requirements of the food processor are met. And make food processor can adopt two cutters, steerable two cutters rotate in step or have the rotation of rotational speed difference or reverse rotation, and even single cutter rotates, and another is motionless, can control two cutters as required, improves food processor's processing variety and treatment effect.
Optionally, the first and second tools are the same or different. To meet different requirements.
A third 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.
The air supply device also comprises a first fan blade connected with the first rotor; and/or the second fan blade is connected with the second rotor, and the control device is respectively electrically connected with the first stator winding and the second stator winding and is used for respectively controlling the first rotor and the second rotor to rotate.
The first rotor rotates the first fan blade to rotate, and the second rotor drives the second fan blade to rotate, so that the first fan blade and the second fan blade can achieve a heat dissipation function, and the working requirements of the air supply device are met. And make air supply arrangement can adopt the heat dissipation of two flabellums, steerable two flabellums synchronous rotation or have the rotation of rotational speed difference or reverse rotation, single flabellum rotates even, and another is motionless, can control two flabellums as required, improves air supply arrangement's heat dissipation variety and radiating effect.
First flabellum assembles to first axis of rotation on to make first rotor drive first flabellum through first axis of rotation and rotate, the second flabellum assembles to the second axis of rotation on, thereby makes the second rotor drive the second flabellum through the second axis of rotation and rotates. Of course, the first fan blade can be directly assembled on the first rotor, and the second fan blade can be directly assembled on the second rotor, so that the structure of the product is simplified without arranging the first rotating shaft and the second rotating shaft.
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 according to an embodiment of the present invention;
fig. 2 shows a schematic structural view of a first rotor and a second rotor according to an embodiment of the present invention;
fig. 3 is a schematic view showing a structure of a stator core according to an embodiment of the present invention;
fig. 4 is a schematic view showing a structure of a stator core according to another embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a stator assembly according to an embodiment of the present invention;
FIG. 6 shows a schematic view of the structure of the first insulating member and the second insulating member according to an embodiment of the present invention;
FIG. 7 shows a schematic structural view of a stator assembly, a first end cap and a second end cap according to an embodiment of the invention;
fig. 8 shows a schematic view of a structure of a stator core according to still another embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 8 is:
1 stator assembly, 11 stator core, 111 first stator tooth, 112 second stator tooth, 113 mounting grooves, 114 through-holes, 12 first stator winding, 13 second stator winding, 14 first insulation portion, 15 second insulation portion, 16 third insulation portion, 2 first rotor, 3 second rotor, 4 carousel, 5 magnetic part, 6 first axis of rotation, 7 second axis of rotation, 8 first end cover, 9 second end cover, 10 second bearing.
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.
An electric machine according to some embodiments of the first aspect of the present invention is described below with reference to fig. 1 to 8.
The first embodiment is as follows:
an electric machine, as shown in fig. 1, comprising: stator assembly 1, first rotor 2 and second rotor 3, the stator assembly includes: stator core 11, a plurality of first stator windings 12, a plurality of second stator windings 13. The first rotor 2 is positioned at one side of the stator assembly 1 provided with a plurality of first stator windings 12; the second rotor 3 is positioned at one side of the stator assembly 1, which is provided with a plurality of second stator windings 13; the plurality of first stator windings 12 can drive the first rotor 2 to rotate, and the plurality of second stator windings 13 can drive the second rotor 3 to rotate.
Wherein the plurality of first stator windings 12 and the plurality of second stator windings 13 are respectively disposed at both sides of the stator core 11, so that a plurality of first stator windings 12 and a plurality of second stator windings 13 share one stator core 11, the first stator windings 12 are fitted to the first rotor 2, the second stator windings 13 are fitted to the second rotor 3, therefore, when the motor needs to be provided with two rotating shafts, the function that two stators drive two rotors to rotate in the related technology can be realized only by arranging one stator assembly 1, the scheme that the first stator winding 12 and the second stator winding 13 share one stator core 11 reduces the thickness of the motor, is beneficial to realizing the miniaturization and the lightness of the motor, and the control circuit supplies power to one stator assembly 1 to control the first rotor 2 and the second rotor 3 to rotate simultaneously or respectively, thereby effectively saving energy and playing a role in simplifying the circuit structure.
Moreover, the first stator winding 12 and the second stator winding 13 are arranged on two sides of the stator core 11 instead of the circumferential direction of the stator core 11, so that the length of the stator core 11 occupied by the stator windings is reduced as much as possible, the volume of the stator core 11 is reduced, and the motor flattening is further facilitated. In addition, the output of the two shafts is realized without arranging a gear transmission mechanism for the output shaft, and the two rotating shafts can be driven to rotate by the two rotors, so that the structure is simplified and the running noise of the motor is reduced. In addition, the control circuit supplies power to the two windings respectively, so that the first rotor 2 and the second rotor 3 have different rotating speeds or rotate in a rotating direction, and the two rotors can be controlled to rotate randomly.
Optionally, as shown in fig. 1 and 2, the motor further includes: first axis of rotation 6 and second axis of rotation 7, first axis of rotation 6 sets up on first rotor 2, when first rotor 2 rotates, first rotor 2 drives first axis of rotation 6 and rotates, thereby make first axis of rotation 6 drive an external component and rotate, second axis of rotation 7 sets up on second rotor 3, when second rotor 3 rotates, second rotor 3 drives second axis of rotation 7 and rotates, thereby make second axis of rotation 7 drive another external component and rotate, it just can make the motor drive two external components and rotate to set up a stator assembly 1, the thickness of motor has effectively been reduced.
The rotation center line of the first rotation shaft 6 and the rotation center line of the second rotation shaft 7 may be substantially overlapped, or the rotation center line of the first rotation shaft 6 and the rotation center line of the second rotation shaft 7 may be parallel to each other.
Example two:
in some embodiments, in the case that the rotation center line of the first rotation shaft 6 and the rotation center line of the second rotation shaft 7 overlap, the first rotation shaft 6 and the second rotation shaft 7 both pass through the second rotor 3 and extend out of an end face of the second rotor 3 facing away from the stator assembly 1, i.e., the first rotation shaft 6 and the second rotation shaft 7 are both exposed to the second rotor 3, so that the first rotation shaft 6 and the second rotation shaft 7 drive the two external connection members to rotate on the same side of the second rotor 3, and are suitable for mounting the two external connection members on the same side of the second rotor 3.
In one embodiment, when the rotation center lines of the first rotating shaft 6 and the second rotating shaft 7 are substantially overlapped, the first rotating shaft 6 is an inner rotating shaft, the second rotating shaft 7 is a hollow rotating shaft, so that the first rotating shaft 6 can pass through the second rotating shaft 7, and the stator assembly 1 is formed with an axially extending through hole 114; the first rotating shaft 6 passes through the through hole 114 and the second rotating shaft 7 and passes through the second rotor 3 via the second rotating shaft 7, and in this case, it is only necessary to provide the stator assembly 1 with a through hole 114 through which the second rotating shaft 7 passes.
Example three:
the difference between this embodiment and the second embodiment is that in this embodiment, the first rotating shaft 6 and the second rotating shaft 7 not only extend out of an end face of the second rotor 3 away from the stator assembly 1, but also the first rotating shaft 6 extends out of an end face of the first rotor 2 away from the stator assembly 1. Make the electron in this application can drive three external parts simultaneously and rotate, and then improve the functional of motor.
Example four:
as shown in fig. 1, different from the second and third embodiments, in the present embodiment, the first rotating shaft 6 only extends out of one end surface of the first rotor 2 departing from the stator assembly 1, and the second rotating shaft 7 only extends out of one end surface of the second rotor 3 departing from the stator assembly 1, so that the first rotating shaft 6 and the second rotating shaft 7 respectively drive two external components to rotate on two sides of the stator assembly 1, and further the first rotating shaft 6 and the second rotating shaft 7 are not prone to interference, thereby improving the stability of the motor during operation.
Example five:
in any of the above embodiments, at least one of the first rotating shaft 6 and the second rotating shaft 7 extends into the stator core 11, the stator core 11 is provided with a first bearing for assembling with the first rotating shaft 6 or the second rotating shaft 7, the first rotating shaft 6 or the second rotating shaft 7 is overlapped on the stator core 11 through the first bearing, and the stator core 11 provides support for the first rotating shaft 6 or the second rotating shaft 7, so as to improve the stability of the first rotating shaft 6 or the second rotating shaft 7.
Optionally, as shown in fig. 1 and fig. 3, a mounting groove 113 is formed on at least one end surface of the stator core 11, the first bearing is disposed in the mounting groove 113, and the mounting groove 113 is configured as an accommodating space provided by the first bearing, so that the first rotating shaft 6 or the second rotating shaft 7 can be conveniently overlapped on the stator core 11 through the first bearing.
Specifically, as shown in fig. 3 and 5, in the case where the stator core 11 has a through hole 114 extending in the axial direction, the mounting groove 113 is provided at the hole periphery of the through hole 114.
Example six:
in any of the embodiments described above, as shown in fig. 8, the stator core 11 in this embodiment is formed by multiple layers of punching sheets, and the multiple layers of punching sheets are stacked and distributed in the radial direction of the stator core 11. Furthermore, the multilayer punching sheet is formed by rolling and folding a punching sheet from inside to outside along a spiral line. Reduce the magnetic resistance, reduce the magnetic loss, improve motor efficiency.
Example seven:
in any of the above embodiments, as shown in fig. 1, 4 and 5, the stator core 11 has a plurality of first stator teeth 111 on one end surface thereof, and a plurality of second stator teeth 112 on the other end surface thereof, the stator assembly 1 further includes a first insulating member and a second insulating member, the first insulating member is disposed on the plurality of first stator teeth 111, and the second insulating member is disposed on the plurality of second stator teeth 112; a plurality of first stator windings 12 are wound on the first insulating member, and a plurality of second stator windings 13 are wound on the second insulating member.
In other embodiments, the plurality of first stator teeth 111 and the plurality of second stator teeth 112 may not be disposed at both axial ends of the stator core 11, but the plurality of first stator windings 12 and the plurality of second stator windings 13 may be directly distributed in inner and outer rings on both axial end surfaces of the stator core 11, respectively.
In one embodiment, as shown in fig. 5 and 6, the first insulating member and the second insulating member each include: a first insulating portion 14 attached to one end surface of the stator core 11; the second insulating part 15 is connected with the first insulating part 14, and the second insulating part 15 is sleeved on the side wall of the stator tooth; and a third insulating part 16 connected to the first insulating part 14, wherein the third insulating part 16 extends from the edge of the first insulating part 14 to the direction of the stator core 11 to partially cover the stator core 11. It should be noted that the second insulating portion 15 of the first insulating member is sleeved on the plurality of first stator teeth 111, and the second insulating portion 15 of the second insulating member is sleeved on the plurality of second stator teeth 112. The first insulating portion 14, the second insulating portion 15 and the third insulating portion 16 are matched to coat the stator core 11 in multiple directions, multiple angles and multiple dimensions, and separate the stator core 11 from the stator winding, so that the use safety and stability of the stator assembly 1 can be improved.
Alternatively, as shown in fig. 5 and 6, the second insulating portion 15 has a hollow structure so that the end of the stator tooth is exposed, and the occurrence of a barrier between the rotor and the stator tooth can be avoided. The second insulating part 15 also has an outer flanging structure, and the outer flanging structure plays a role in shielding the stator winding, so that the insulating effect is further improved. The first insulating portion 14 and the second insulating portion 15 are configured in an annular structure, and in combination with the third insulating portion 16, the first insulating portion and the second insulating portion are conveniently integrally covered on the end portion of the stator core 11.
Optionally, the first insulating part and the second insulating part each include a plurality of sub-insulating parts, the plurality of sub-insulating parts are integrally formed or the plurality of sub-insulating parts are integrally assembled, and when the plurality of sub-insulating parts can be integrally formed, the first insulating part and the second insulating part have high stability, so that the first insulating part and the second insulating part can be rapidly machined and formed. A plurality of sub-insulators can also be assembled to form a first insulator and a second insulator, so that the fact that each sub-insulator can accurately cover the appointed part of the stator core is guaranteed.
Example eight:
in any of the above embodiments, as shown in fig. 1 and 2, the first rotor 2 and the second rotor 3 each include a rotating disk 4 and magnetic members 5, and the magnetic members 5 are disposed on the rotating disk 4 and distributed circumferentially along the rotating disk 4.
In one embodiment, the number of the magnetic members 5 is 1, and the magnetic members 5 have a ring shape and a plurality of magnetic poles in a circumferential direction thereof.
In another embodiment, the number of the magnetic members 5 is plural, and the plural magnetic members 5 are circumferentially distributed along the rotation center line of the turntable 4.
Alternatively, the magnetic member 5 is embedded on the turntable 4 or provided inside the turntable 4.
Optionally, carousel 4 is the plastics carousel, and carousel 4 is made by the plastics material and makes carousel 4 have lighter weight, and then makes the weight of motor lighter to be convenient for carry and remove the motor, improve the convenience to motor installation. In other embodiments, the turntable 4 may also be made of a metal or non-metal material, such as an aluminum turntable.
Example nine:
in any of the above embodiments, as shown in fig. 1, fig. 2, and fig. 7, the motor further includes a first end cover 8 and a second end cover 9, the first end cover 8 and the second end cover 9 form a housing of the motor, the first end cover 8 and the second end cover 9 enclose a mounting cavity, the stator assembly 1, the first rotor 2, and the second rotor 3 are all disposed in the mounting cavity, the first rotating shaft 6 and the second rotating shaft 7 both extend out of the mounting cavity, and the first end cover 8 and the second end cover 9 protect the stator assembly 1, the first rotor 2, and the second rotor 3, so as to prevent the stator assembly 1, the first rotor 2, and the second rotor 3 from being damaged.
When first axis of rotation 6 and second axis of rotation 7 stretched out second rotor 3 in one side of second rotor 3, and first axis of rotation 6 was interior pivot to and when second axis of rotation 7 was the hollow axis of rotation, be provided with the bearing with the assembly of second axis of rotation 7 in second end cover 9, second axis of rotation 7 was established on second end cover 9 through the bearing, thereby for second axis of rotation 7 provides the support, improved second axis of rotation 7's stability.
Not only extend to the one side that stator assembly 1 was kept away from to second rotor 3 at first axis of rotation 6 and second axis of rotation 7, first axis of rotation 6 still extends to first rotor 2 when deviating from one side of stator assembly 1, first axis of rotation 6 part stretches into first end cover 8, and be equipped with second bearing 10 between the first end cover 8, second axis of rotation 7 part stretches into second end cover 9, and be equipped with the third bearing between the second end cover 9, first axis of rotation 6 is taken up through second bearing 10 and is established on first end cover 8, thereby for first axis of rotation 6 provides the support, improve the stability of first axis of rotation 6, second axis of rotation 7 is taken up through the third bearing and is established on second end cover 9, thereby provide the support for second axis of rotation 7, improve the stability of second axis of rotation 7.
In any of the above embodiments, the electric machine may be an electric motor, or may be a part of a power generation device.
A second aspect of the invention provides a food processor.
The food processor comprises the motor provided in any one of the above embodiments, so that the food processor provided by the invention has all the benefits of the motor provided in any one of the above technical solutions.
As shown in fig. 1, the food processor further comprises a control device electrically connected to the first stator winding 12 and the second stator winding 13, respectively, for controlling the first rotor 2 and the second rotor 3 to rotate, respectively, the control device being capable of controlling the first rotor 2 and the second rotor 3 to rotate at the same rotational speed, respectively, through the first stator winding 12 and the second stator winding 13.
The control device is capable of controlling the first rotor 2 and the second rotor 3 to rotate at different rotational speeds by the first stator winding 12 and the second stator winding 13, respectively.
The control means are able to control the first rotor 2 and the second rotor 3 to turn the same and rotate at the same rotational speed by means of the first stator winding 12 and the second stator winding 13, respectively.
The control device can control the first rotor 2 and the second rotor 3 to rotate in the same direction and at different rotational speeds by the first stator winding 12 and the second stator winding 13, respectively.
The food processor also comprises a first cutter and a second cutter, the first cutter is connected with the first rotor 2, the second cutter is connected with the second rotor 3, the first rotor 2 drives the first cutter to rotate, and the second rotor 3 drives the second cutter to rotate, so that the first cutter and the second cutter can realize functions of stirring, crushing and the like, and the working requirements of the food processor are met. And make food processor can adopt two cutters, steerable two cutters rotate in step or have the rotation of rotational speed difference or reverse rotation, and even single cutter rotates, and another is motionless, can control two cutters as required, improves food processor's processing variety and treatment effect.
The first tool is fitted to the first rotary shaft 6 so that the first rotor 2 rotates the first tool through the first rotary shaft 6, and the second tool is fitted to the second rotary shaft 7 so that the second rotor 3 rotates the second tool through the second rotary shaft 7. Of course, the first cutter can be directly assembled on the first rotor 2, and the second cutter can be directly assembled on the second rotor 3, so that the first rotating shaft 6 and the second rotating shaft 7 are not required to be arranged, and the structure of the product is simplified.
Optionally, the first and second tools are the same or different.
Optionally, the food processor is any one of a blender, a wall breaking machine, a soymilk maker, a cooking machine, a chef machine, and a cooking machine.
A third aspect of the invention provides an air supply apparatus.
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.
As shown in fig. 1, the air blowing device further includes: first flabellum, second flabellum and controlling means, first flabellum and first rotor 2 are connected, and the second flabellum is connected with second rotor 3, and first rotor 2 drives first flabellum and rotates, and second rotor 3 drives the rotation of second flabellum for first flabellum and second flabellum can realize the heat dissipation function, satisfy air supply arrangement's work demand. And make air supply arrangement can adopt the heat dissipation of two flabellums, steerable two flabellums synchronous rotation or have the rotation of rotational speed difference or reverse rotation, single flabellum rotates even, and another is motionless, can control two flabellums as required, improves air supply arrangement's heat dissipation variety and radiating effect.
First flabellum assembles to first axis of rotation 6 on to make first rotor 2 drive first flabellum through first axis of rotation 6 and rotate, the second flabellum assembles to second axis of rotation 7 on, thereby make second rotor 3 drive the second flabellum through second axis of rotation 7 and rotate, also can directly assemble first rotor 2 with first flabellum equally, directly assemble the second flabellum to second rotor 3 on, need not set up first axis of rotation 6 and second axis of rotation 7 and simplified the structure of product.
The control device is capable of controlling the first rotor 2 and the second rotor 3 to rotate at different rotational speeds by the first stator winding 12 and the second stator winding 13, respectively.
The control means are able to control the first rotor 2 and the second rotor 3 to turn the same and rotate at the same rotational speed by means of the first stator winding 12 and the second stator winding 13, respectively.
The control device can control the first rotor 2 and the second rotor 3 to rotate in the same direction and at different rotational speeds by the first stator winding 12 and the second stator winding 13, respectively.
Optionally, the first fan blade and the second fan blade have the same or different shapes to meet different requirements.
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 (21)
1. An electric machine, comprising:
the stator assembly (1), the stator assembly (1) includes a stator core (11), a plurality of first stator windings (12) and a plurality of second stator windings (13), the plurality of first stator windings (12) are arranged on one side of the stator core (11), and the plurality of second stator windings (13) are arranged on the other side of the stator core (11);
a first rotor (2) located on a side of the stator assembly (1) on which the plurality of first stator windings (12) are disposed;
a second rotor (3) located on a side of the stator assembly (1) where the plurality of second stator windings (13) are provided;
wherein the plurality of first stator windings (12) are capable of driving the first rotor (2) to rotate, and the plurality of second stator windings (13) are capable of driving the second rotor (3) to rotate.
2. The electric machine of claim 1, further comprising:
a first rotation shaft (6) provided on the first rotor (2)
A second rotation shaft (7) provided on the second rotor (3).
3. The electric machine of claim 2,
the rotation center line of the first rotation shaft (6) and the rotation center line of the second rotation shaft (7) are overlapped or parallel to each other.
4. The electric machine of claim 2,
the first rotating shaft (6) and the second rotating shaft (7) penetrate through the second rotor (3) and extend out of one end face, away from the stator assembly (1), of the second rotor (3).
5. The electric machine of claim 4,
the second rotating shaft (7) is a hollow rotating shaft, and the stator core (11) is provided with an axially extending through hole (114);
the first rotating shaft (6) penetrates through the through hole (114) and the second rotating shaft (7), and penetrates through the second rotor (3) through the second rotating shaft (7).
6. The electric machine of claim 5,
the first rotating shaft (6) also penetrates through the first rotor (2) and extends out of one end face, facing away from the stator assembly (1), of the first rotor (2).
7. The electric machine of claim 2,
the first rotating shaft (6) penetrates through the first rotor (2) and extends out of one end face, facing away from the stator assembly (1), of the first rotor (2);
the second rotating shaft (7) penetrates through the second rotor (3) and extends out of one end face, facing away from the stator assembly (1), of the second rotor (3).
8. The electric machine according to any of the claims 2 to 7,
at least one of the first rotating shaft (6) and the second rotating shaft (7) extends into the stator core (11), and a first bearing is arranged between the first rotating shaft and the stator core (11).
9. The electric machine of claim 8,
at least one end face of the stator core (11) is provided with a mounting groove (113), and the first bearing is arranged in the mounting groove (113).
10. The electric machine according to any of claims 1 to 7,
the stator core (11) is composed of multiple layers of stamped sheets, and the multiple layers of stamped sheets are radially stacked and distributed on the stator core (11).
11. The electric machine of claim 10,
the multilayer punching sheet is formed by rolling and folding a punching sheet from inside to outside along a spiral line.
12. The electric machine according to any of claims 1 to 7,
one end face of the stator core (11) is provided with a plurality of first stator teeth (111), and the other end face is provided with a plurality of second stator teeth (112);
the stator assembly (1) further comprises a first insulating member and a second insulating member, wherein the first insulating member is sleeved on the plurality of first stator teeth (111), and the second insulating member is sleeved on the plurality of second stator teeth (112);
the first stator windings (12) are wound on the first insulating part, and the second stator windings (13) are wound on the second insulating part.
13. The electric machine of claim 12,
the first insulator and the second insulator each include:
a first insulating portion (14) attached to one end surface of the stator core (11);
the second insulating part (15) is connected with the first insulating part (14), and the second insulating part (15) is sleeved on the side wall of the stator tooth;
and the third insulating part (16) is connected with the first insulating part (14), and the third insulating part (16) extends from the edge of the first insulating part (14) to the direction of the stator core (11) so as to partially coat the stator core (11).
14. The electric machine of claim 12,
the first insulating piece and the second insulating piece both comprise a plurality of sub-insulating pieces which are integrally formed or assembled into a whole.
15. The electric machine according to any of claims 1 to 7,
the first rotor (2) and the second rotor (3) both comprise a rotary disc (4) and a magnetic part (5), and the magnetic part (5) is arranged on the rotary disc (4).
16. The electric machine of claim 15,
the turntable (4) is provided with an accommodating part, and the magnetic part (5) is positioned in the accommodating part; or
The number of the magnetic parts (5) is multiple, and the magnetic parts (5) are distributed at intervals along the circumferential direction of the rotating disc (4).
17. The electric machine of claim 15,
the rotary disc (4) is a plastic rotary disc or an aluminum rotary disc.
18. The electric machine of any one of claims 2 to 7, further comprising:
a first end cap (8);
the second end cover (9) and the first end cover (8) enclose a mounting cavity, the stator assembly (1), the first rotor (2) and the second rotor (3) are arranged in the mounting cavity, and the first rotating shaft (6) and the second rotating shaft (7) extend out of the mounting cavity;
the first rotating shaft (6) partially extends into the first end cover (8), a second bearing (10) is arranged between the first rotating shaft and the first end cover (8), and/or the second rotating shaft (7) partially extends into the second end cover (9), and a third bearing is arranged between the second rotating shaft and the second end cover (9).
19. A food processor, comprising:
the electric machine of any one of claims 1 to 18;
and the control device is electrically connected with the first stator winding (12) and the second stator winding (13) respectively and is used for controlling the first rotor (2) and the second rotor (3) to rotate respectively.
20. The food processor of claim 19, further comprising:
a first tool connected to the first rotor (2); and/or
A second cutter connected with the second rotor (3).
21. An air supply device, comprising:
the electric machine of any one of claims 1 to 18;
a first fan connected with the first rotor (2), and/or
The second fan blade is connected with the second rotor (3);
and the control device is electrically connected with the first stator winding (12) and the second stator winding (13) respectively and is used for controlling the first rotor (2) and the second rotor (3) to rotate respectively.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910785940.9A CN112421830A (en) | 2019-08-23 | 2019-08-23 | Motor, food processor and air supply device |
| PCT/CN2020/106956 WO2021036720A1 (en) | 2019-08-23 | 2020-08-05 | Motor, food processor, and air supply apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910785940.9A CN112421830A (en) | 2019-08-23 | 2019-08-23 | Motor, food processor and air supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112421830A true CN112421830A (en) | 2021-02-26 |
Family
ID=74685626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910785940.9A Pending CN112421830A (en) | 2019-08-23 | 2019-08-23 | Motor, food processor and air supply device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112421830A (en) |
| WO (1) | WO2021036720A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5634391A (en) * | 1979-08-28 | 1981-04-06 | Matsushita Electric Ind Co Ltd | Driving device for hydroextracting washing machine |
| JP2011193564A (en) * | 2010-03-12 | 2011-09-29 | Daikin Industries Ltd | Stator for axial gap type rotating electrical machines and method of manufacturing the same |
| CN207994879U (en) * | 2018-02-11 | 2018-10-19 | 佛山市顺德区美的电热电器制造有限公司 | Motor and food cooking machine |
| CN109751261A (en) * | 2017-11-08 | 2019-05-14 | 建准电机工业股份有限公司 | Double motor and have the bimotored fan |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59172961A (en) * | 1983-03-17 | 1984-09-29 | Matsushita Electric Ind Co Ltd | Axial air gap induction motor |
| CN206149076U (en) * | 2016-11-07 | 2017-05-03 | 深圳市踢踢电子有限公司 | One -way brushless motor of coaxial dual output |
| UA124412C2 (en) * | 2017-12-22 | 2021-09-15 | Євгеній Віталійович Мушинський | CONTRACTOR SYNCHRONOUS ELECTROMECHANICAL CONVERTER |
| CN110149036B (en) * | 2018-02-11 | 2021-10-12 | 佛山市顺德区美的电热电器制造有限公司 | Motor and food processor |
| CN109546827B (en) * | 2018-12-24 | 2020-10-27 | 广东美的白色家电技术创新中心有限公司 | Counter-rotating motor and wall breaking machine |
| CN210225216U (en) * | 2019-08-26 | 2020-03-31 | 美的威灵电机技术（上海）有限公司 | Motor and fan |
| CN210167928U (en) * | 2019-08-26 | 2020-03-20 | 美的威灵电机技术（上海）有限公司 | Motor and fan |
-
2019
- 2019-08-23 CN CN201910785940.9A patent/CN112421830A/en active Pending
-
2020
- 2020-08-05 WO PCT/CN2020/106956 patent/WO2021036720A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5634391A (en) * | 1979-08-28 | 1981-04-06 | Matsushita Electric Ind Co Ltd | Driving device for hydroextracting washing machine |
| JP2011193564A (en) * | 2010-03-12 | 2011-09-29 | Daikin Industries Ltd | Stator for axial gap type rotating electrical machines and method of manufacturing the same |
| CN109751261A (en) * | 2017-11-08 | 2019-05-14 | 建准电机工业股份有限公司 | Double motor and have the bimotored fan |
| CN207994879U (en) * | 2018-02-11 | 2018-10-19 | 佛山市顺德区美的电热电器制造有限公司 | Motor and food cooking machine |
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| Publication number | Publication date |
|---|---|
| WO2021036720A1 (en) | 2021-03-04 |
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