CN112421871A - Motor assembly, food processor and air supply device - Google Patents

Motor assembly, food processor and air supply device Download PDF

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Publication number
CN112421871A
CN112421871A CN201910785982.2A CN201910785982A CN112421871A CN 112421871 A CN112421871 A CN 112421871A CN 201910785982 A CN201910785982 A CN 201910785982A CN 112421871 A CN112421871 A CN 112421871A
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CN
China
Prior art keywords
magnetic
driven
driving
piece
motor shaft
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Granted
Application number
CN201910785982.2A
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Chinese (zh)
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CN112421871B (en
Inventor
梁显堂
王云峰
陈炜杰
陈连城
刘锦泉
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Guangdong Midea Life Electric Manufacturing Co Ltd
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Guangdong Midea Life Electric Manufacturing Co Ltd
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Priority to CN201910785982.2A priority Critical patent/CN112421871B/en
Publication of CN112421871A publication Critical patent/CN112421871A/en
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Publication of CN112421871B publication Critical patent/CN112421871B/en
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Classifications

    • 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
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
    • A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
    • A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
    • A47J43/07—Parts or details, e.g. mixing tools, whipping tools
    • A47J43/08—Driving mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/163—Combinations of two or more pumps ; Producing two or more separate gas flows driven by a common gearing arrangement
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
    • H02K49/102—Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
    • H02K49/104—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
    • H02K49/106—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with a radial air gap

Abstract

The invention provides a motor assembly, a food processor and an air supply device, wherein the motor assembly comprises: a motor body having a motor shaft; the driving part is connected with the motor shaft, can rotate along with the rotation of the motor shaft, and is provided with a first magnetic part; the driven part is coaxial with the driving part, a second magnetic part is arranged on the driven part, and the driven part can be driven to rotate by the acting force between the first magnetic part and the second magnetic part when the driving part rotates; wherein, be equipped with first mounting groove on one in driving piece and the driven part, another setting in first mounting groove in driving piece and the driven part. The invention can not generate mechanical friction and collision in the transmission process, thereby effectively reducing the noise generated by mechanical transmission, effectively prolonging the service life of the motor transmission assembly, reducing the occupied space of the driving part and the driven part in the axial direction and further reducing the volume of the motor assembly.

Description

Motor assembly, food processor and air supply device
Technical Field
The invention relates to the technical field of motors, in particular to a motor assembly, a food processor and an air supply device.
Background
In the related art, the motor generally outputs power through only one output end during the operation, but in some cases, one motor is required to output power through two output ends, in these cases, a gear mechanism is generally adopted for transmission, and the output of the motor output shaft is transmitted to the second output end for output through a mechanical transmission manner, but the mechanical transmission using gears and the like generates a large noise, and mechanical transmission components such as gears occupy a larger space, and in order to reduce the noise of the gear mechanical transmission, a person skilled in the art generally chooses to improve the gear precision, or a non-rigid plastic material is adopted to manufacture the gears, so that although the noise of the gear transmission is reduced, the problems of the increase of the motor cost and the reduction of the service life of the gear transmission components are brought, and therefore, how to reduce the noise generated when the motor output end is transmitted are solved, becomes a problem to be solved urgently.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art.
A first aspect of the invention provides an electric machine assembly.
A second aspect of the invention provides a food processor.
A third aspect of the invention provides an air supply apparatus.
In view of the above, according to a first aspect of the present invention, there is provided a motor assembly comprising: a motor body having a motor shaft; the driving part is connected with the motor shaft, can rotate along with the rotation of the motor shaft, and is provided with at least one first magnetic part; the driven part is coaxial with the driving part, at least one second magnetic part is arranged on the driven part, and the driven part can be driven to rotate by the acting force between the first magnetic part and the second magnetic part when the driving part rotates; wherein, be equipped with first mounting groove on one in driving piece and the driven part, another setting in first mounting groove in driving piece and the driven part.
According to the motor assembly provided by the invention, when the motor works in an electrified mode, when the motor shaft drives the driving part to rotate, the first magnetic part and the second magnetic part are respectively arranged on the driving part and the driven part, and the magnetic transmission between the driving part and the driven part is utilized to replace gear transmission, so that mechanical friction and collision cannot be generated in the transmission process, the noise generated by mechanical transmission is effectively reduced, the service life of the motor transmission assembly is effectively prolonged, in addition, the first mounting groove capable of accommodating the other one of the driving part and the driven part is arranged on one of the driving part and the driven part, the driving part and the driven part are sleeved together through the first mounting groove, the occupied space of the driving part and the driven part in the axial direction is reduced, the size of the motor assembly is reduced, and the miniaturization of products is realized.
It will be appreciated that the designer can provide a driven member on each of the motor shaft and the driven member, so that the motor assembly has two outputs, increasing the number of modes in which the motor assembly can be used.
In the above technical solution, preferably, the motor assembly further includes: the fixed piece is provided with a plurality of magnetic conduction pieces which are distributed at intervals; the fixing piece is located the first mounting groove, is formed with the second mounting groove on the fixing piece, and another setting in the second mounting groove in driving piece and the follower.
In the technical scheme, the fixing pieces with the magnetic conduction pieces are arranged between the driving piece and the driven piece, and the magnetic conduction pieces are distributed on the fixing pieces at intervals, so that positions with higher magnetic resistance are distributed on the fixing pieces at intervals, and any two of the first magnetic piece, the second magnetic piece and the magnetic conduction pieces are distributed at a preset angle in a staggered mode, so that in the rotating process of the driving piece, the magnetic poles of the first magnetic piece can magnetize the magnetic conduction pieces at corresponding positions, the magnetic conduction pieces can attract opposite magnetic poles of the second magnetic piece, according to the principle that a magnetic circuit is shortest, the magnetic poles of the first magnetic piece can alternately attract opposite magnetic poles of the second magnetic piece on the driven piece, so that the second magnetic piece can drive the driven piece to rotate in the opposite direction relative to the driving piece, and the driven piece can rotate in the opposite direction along with the movement of the driving piece; furthermore, the fixing piece is arranged in the first mounting groove, the fixing piece is further provided with a second mounting groove, one of the driving piece and the driven piece is arranged in the second mounting groove, the driving piece, the fixing piece and the driven piece are sleeved together one by one, the occupied space of the driving piece, the fixing piece and the driven piece in the axial direction is reduced, the overall size of the motor assembly is reduced, and miniaturization of products is achieved.
In any of the above technical solutions, preferably, the driving member is provided with a first through hole, the fixing member is provided with a second through hole, the driven member is provided with a third through hole, the motor shaft penetrates through the first through hole, the second through hole and the third through hole, and one end of the motor shaft extends out.
In the technical scheme, the driving part, the fixing part and the driven part are respectively provided with the first through hole, the second through hole and the third through hole, and the motor shaft sequentially penetrates through the first through hole, the second through hole and the third through hole, so that the driving part, the fixing part and the driven part are coaxially arranged, and the motion stability of the driven part during transmission is ensured.
In any of the above technical solutions, preferably, the motor assembly further includes: the output shaft is arranged on the driven part, the third through hole penetrates through the output shaft, the output shaft and the motor shaft are coaxially arranged, and one end of the motor shaft extends out of the output shaft.
In the technical scheme, the output shaft is arranged on the driven part to serve as one output end, and the motor shaft penetrates out of the output shaft to serve as a second output end, so that the motor assembly has two output ends, and the application modes of the motor assembly are increased; further, under the condition that the driving part drives the driven part to rotate towards the direction opposite to that of the driving part, the effect that the two output ends move in opposite directions can be achieved, wherein the output shaft and the motor shaft are coaxially arranged, the output shaft and the motor shaft are guaranteed not to be in contact in the radial direction in the moving process, and then the rotating stability of the output shaft and the motor shaft is guaranteed.
In any of the above technical solutions, preferably, one of the driving member and the driven member located in the first mounting groove is configured as an annular disc; one of the driving member and the driven member having the first mounting groove includes: the magnetic disk drive comprises a fixed frame and an annular magnetic disk formed by a magnetic part structure, wherein the annular magnetic disk is arranged on the fixed frame.
In the technical scheme, one of a driving part and a driven part arranged in a first mounting groove is arranged in an annular disc shape, the other one of the driving part and the driven part is an annular disc formed by a fixed frame and a magnetic part, the annular disc is arranged on the fixed frame, the driving part and the driven part are arranged together in a sleeved mode, in the transmission process, the magnetic field of the first magnetic part on the driving part is transmitted to the driven part along the radial direction, and therefore the second magnetic part is influenced by the magnetic field to drive the driven part to move.
It can be understood that, when the first mounting groove is arranged on the driven member, the driven member is composed of a fixed frame and an annular magnetic disc formed by the second magnetic member, and the annular magnetic disc is arranged on the fixed frame, and the driving member is positioned in the first mounting groove; when the first mounting groove is formed in the driving part, the driving part is composed of a fixed frame and an annular magnetic disc formed by the first magnetic part, the annular magnetic disc is arranged on the fixed frame, and the driven part is located in the first mounting groove.
In any one of the above technical solutions, preferably, the fixing member is fixedly disposed on the motor body, and the fixing member further includes: the magnetic conduction device comprises a bracket, wherein a plurality of installation positions distributed at intervals are arranged on the bracket, the bracket is made of a non-magnetic conduction material, and the magnetic conduction member is arranged in the installation positions.
In the technical scheme, the fixing part is composed of a bracket and a magnetic conduction part, wherein the bracket is made of a non-magnetic conduction material, the bracket is ensured to have little influence on a first magnetic part on a main driving part, so that the magnetic resistance of a part without the magnetic conduction part is larger, a magnetic field is difficult to transmit to a driven part, a mounting position for mounting the magnetic conduction part is arranged on the bracket, the magnetic conduction part is stably arranged in the mounting position which is arranged at intervals, the magnetic conduction part is prevented from falling off in the transmission process, the magnetic poles of the first magnetic part can generate attraction force to opposite magnetic poles of a second magnetic part which is closer according to the principle of shortest magnetic circuit in the movement process of the driving part, so that the driven part can rotate along the opposite direction along with the driving part, and the magnetic conduction part and each first magnetic part on the driving part are staggered by a certain included angle at the same time, and the action of the magnetic attraction force principle is, the driven part can rotate reversely relative to the driving part.
In any one of the above technical solutions, preferably, in the radial direction along the motor shaft, the magnetic conducting member is located between the first magnetic member and the second magnetic member, and any two of the first magnetic member, the second magnetic member and the magnetic conducting member are distributed at a preset angle in a staggered manner.
In the technical scheme, the magnetic conduction piece is positioned between the first magnetic piece and the second magnetic piece, magnetic conduction is carried out between the first magnetic piece and the second magnetic piece in the radial direction, and the driven piece can be driven to reversely rotate relative to the driving piece when the driving piece rotates by utilizing the shortest magnetic circuit principle and the magnetic attraction principle due to the fact that the first magnetic piece, the second magnetic piece and the magnetic conduction piece are mutually staggered by a certain included angle.
In any one of the above technical solutions, preferably, the number of poles of the first magnetic member is different from the number of poles of the second magnetic member, and a sum of the number of poles of the first magnetic member and the number of poles of the second magnetic member is equal to the number of the magnetic conductive members.
In the technical scheme, the number of the first magnetic parts, the second magnetic parts and the magnetic conduction parts is limited, so that the number of the magnetic poles of the driven part and the number of the magnetic poles of the driving part are different, the second magnetic parts on the driven part are influenced by the magnetic force of the first magnetic parts on the driving part, and the driven part is driven to rotate in the direction opposite to the rotating direction of the driving part.
In any of the above technical solutions, preferably, in a radial direction along the motor shaft, projection surfaces of the first magnetic member, the magnetic conductive member, and the second magnetic member partially coincide.
In this technical scheme, through setting up first magnetism spare, magnetic conduction spare and second magnetism spare are at the partial coincidence of radial direction's projection face, can guarantee first magnetism spare, magnetic conduction spare and second magnetism spare are all in same radial position, have guaranteed that the driving part produces the stability in the magnetic field of influence to the follower in the motion process, thereby guarantee the stability of follower at transmission in-process atress direction, guaranteed that the follower can not take place radially ascending rocking relatively the motor shaft, and then guarantee the stability of follower motion.
In any of the above technical solutions, preferably, a portion of the motor shaft located in the first through hole is tightly fitted with the driving part, so that the driving part rotates along with the motor shaft.
In the technical scheme, the driving part is fixedly arranged on the motor shaft, so that the driving part can be ensured to rotate along the same direction at the same speed along with the motor shaft.
In any of the above technical solutions, preferably, the first through hole and the portion of the motor shaft located in the first through hole are at least one of interference fit, threaded fit or adhesive fit.
In the technical scheme, the driving part and the motor shaft are connected in one or more combined connection modes of interference fit, thread fit or bonding fit through the first through hole and the motor shaft, and the driving part and the motor shaft are connected more stably through the three or more connection modes, so that the stability of the driving part along with the movement of the motor shaft is ensured.
In any of the above technical solutions, preferably, the first magnetic member is a magnet; and/or the second magnetic member is a magnet; and/or the magnetically permeable member is made of a soft magnetic material.
In the technical scheme, the first magnetic part arranged on the driving part and the second magnetic part arranged on the driven part are magnets, and the magnets have the advantages of easily obtained materials and low production cost; in addition, the first magnetic part and the second magnetic part are both magnetic, so that the stability and reliability of the transmission process can be ensured; furthermore, the magnetic conduction piece is made of soft magnetic materials and has the characteristic of easy magnetization and demagnetization, so that the magnetic field of the magnetic conduction piece can change along with the rotation of the driving piece, and the magnetic conduction can be carried out between the driving piece and the driven piece.
A second aspect of the present invention provides a food processor having the motor assembly provided in any of the embodiments of the first aspect, and therefore, the food processor provided in the embodiments of the present invention has all the advantages of the motor assembly provided in any of the embodiments of the first aspect, which are not listed here.
In any of the above technical solutions, optionally, the food processor further includes: the first stirring cutter is connected with a motor shaft of the motor assembly; and/or the second stirring cutter is connected with the driven part of the motor assembly.
In this technical scheme, the output motor of food processor has two outputs of motor shaft and output shaft of follower, when setting up first stirring cutter and second stirring cutter, can set up first stirring cutter on the motor shaft, and second stirring cutter sets up on the output shaft of follower to the realization is at food processor during operation, and first stirring cutter and second stirring cutter can rotate along opposite direction, and then make the edible material of being handled stir or more even of smashing.
A third aspect of the present invention provides an air supply apparatus having the motor assembly provided in any of the embodiments of the first aspect, and a first fan blade connected to a motor shaft of the motor assembly, and/or a second fan blade connected to a driven member of the motor assembly.
In this technical scheme, air supply arrangement's output motor has two outputs of the output shaft of motor shaft and follower, when setting up first flabellum and second flabellum, can set up first flabellum on the motor shaft, the second flabellum sets up on the output shaft of follower, thereby realize air supply arrangement when carrying out the work, make a motor element can drive first flabellum and second flabellum rotatory simultaneously, can understand, the designer can make first flabellum and second flabellum the air-out direction the same under the different circumstances of direction of rotation through the angle of adjusting first flabellum and second flabellum, realize the technological effect of increase amount of wind. Moreover, since the air supply device provided by the present invention has the motor assembly provided in any embodiment of the first aspect, the air supply device provided by the embodiment of the present invention has all the advantages of the motor assembly provided in any embodiment of the first aspect, which are not listed here.
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 illustrates a schematic structural view of a motor assembly according to one embodiment of the present invention;
FIG. 2 illustrates a cross-sectional view of the motor assembly of FIG. 1 in the direction A-A according to one embodiment of the present invention;
FIG. 3 illustrates a schematic structural diagram of an active member according to one embodiment of the present invention;
FIG. 4 shows a schematic structural view of a follower according to one embodiment of the present invention;
figure 5 shows a schematic view of a fixture according to an embodiment of the invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:
the magnetic flux-conducting magnetic coupling motor comprises a motor body 10, a motor shaft 12, a driving part 20, a first magnetic part 22, a first through hole 24, a driven part 30, a second magnetic part 32, a fixing frame 34, a second through hole 36, a fixing part 40, a magnetic conducting part 42, a support 44, a third through hole 46, a first mounting groove 50, a second mounting groove 60 and an output shaft 70.
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 to the specific embodiments disclosed below.
A motor assembly, a food processor, and an air supply device according to some embodiments of the present invention are described below with reference to fig. 1 to 5.
Example one
As shown in fig. 1, the motor assembly according to the embodiment of the present invention includes a motor body 10, a driving member 20, and a driven member 30.
Specifically, the motor body 10 has a motor shaft 12; the driving part 20 is connected with the motor shaft 12, the driving part 20 can rotate along with the rotation of the motor shaft 12, and at least one first magnetic part 22 is arranged on the driving part 20; the driven part 30 and the driving part 20 are coaxially arranged, at least one second magnetic part 32 is arranged on the driven part 30, and the driven part 30 can be driven to rotate by the acting force between the first magnetic part 22 and the second magnetic part 32 when the driving part 20 rotates; wherein, one of the driving member 20 and the driven member 30 is provided with a first mounting groove 50, and the other one of the driving member 20 and the driven member 30 is provided in the first mounting groove 50.
In this embodiment, the motor assembly includes a driving part 20 disposed on the motor shaft 12 and a driven part 30 disposed coaxially with the driving part 20, and the driving part 20 and the driven part 30 are respectively disposed with a first magnetic part 22 and a second magnetic part 32 having magnetism, the driving part 20 and the motor shaft 12 are disposed together and can rotate with the rotation of the motor shaft 12, the driven part 30 moves under the effect of the magnetic attraction force of the first magnetic part 22 on the second magnetic part 32 and rotates with the rotation of the driving part 20, the magnetic transmission between the driving part 20 and the driven part 30 replaces the mechanical gear transmission in the prior art, no mechanical friction and collision are generated during the transmission, thereby effectively reducing the noise generated by the mechanical transmission, and effectively prolonging the service life of the motor transmission assembly, and the driving part 20 or the driven part 30 is disposed with a first mounting groove 50 capable of accommodating the other one of the driving part 20 and the driven part 30, the driving part 20 and the driven part 30 are sleeved together through the first mounting groove 50, so that the occupied space of the driving part 20 and the driven part 30 in the axial direction is reduced, the size of the motor assembly is reduced, and the miniaturization of a product is realized.
Example two
As shown in fig. 1 to 5, in one embodiment of the present invention, optionally, the motor assembly includes: the motor comprises a motor body 10, a driving part 20, a driven part 30 and a fixing part 40.
Specifically, the fixing member 40 is provided with a plurality of magnetic conductive members 42 distributed at intervals; the fixing member 40 is positioned in the first mounting groove 50, a second mounting groove 60 is formed on the fixing member 40, and the other one of the driving member 20 and the driven member 30 is disposed in the second mounting groove 60.
In this embodiment, a fixing member 40 is further disposed between the driving member 20 and the driven member 30, and a magnetic conducting member 42 is disposed at an interval on the fixing member 40, the magnetic conducting member 42 can conduct a magnetic field generated by the driving member 20, the first magnetic member 22 on the driving member 20 can generate a magnetic field, when the driving member 20 rotates along with the motor shaft 12, the magnetic field generated by the magnetic pole of the first magnetic member 22 can be conducted to the position of the second magnetic member 32 by the magnetic conducting member 42 disposed at an interval, because the magnetic conducting member 42 is disposed at an interval on the fixing member 40, there are positions with higher magnetic resistance disposed at an interval on the fixing member 40, and any two of the first magnetic member 22, the second magnetic member 32 and the magnetic conducting member 42 are disposed at a preset angle in a staggered manner, during the rotation of the driving member 20, the magnetic pole of the first magnetic member 22 can magnetize the magnetic conducting member 42 at a corresponding position, the magnetic conducting member 42 can attract the opposite magnetic pole of the second magnetic member 32, according to the principle of the shortest magnetic circuit, the magnetic poles of the first magnetic members 22 alternately attract the opposite magnetic poles of the second magnetic members 32 on the driven member 30, so that the driven member 30 is driven by the second magnetic members 32 to rotate in the opposite direction relative to the driving member 20. And the magnetic transmission between the driving part 20 and the driven part 30 replaces the mechanical gear transmission in the prior art, and the transmission in the opposite direction is realized, and meanwhile, the mechanical friction and collision cannot be generated in the transmission process, so that the noise generated by the mechanical transmission is effectively reduced, and the service life of the motor transmission assembly is effectively prolonged.
Specifically, the fixing member 40 is disposed in the first mounting groove 50, and the fixing member 40 is further provided with a second mounting groove 60, wherein one of the driving member 20 and the driven member 30 is disposed in the second mounting groove 60, so that the driving member 20, the fixing member 40 and the driven member 30 are sleeved together one by one, and the occupied space of the driving member 20, the fixing member 40 and the driven member 30 in the axial direction is reduced, thereby reducing the overall size of the motor assembly and realizing the miniaturization of the product.
In any of the above embodiments, alternatively, one of the driving member 20 and the driven member 30 located in the first mounting groove 50 is configured as an annular disk; one of the driving member 20 and the driven member 30 having the first mounting groove 50 includes: a fixed mount 34 and an annular magnetic disk formed by a magnetic member structure, the annular magnetic disk being mounted on the fixed mount 34.
In this embodiment, one of the driving member 20 and the driven member 30 disposed in the first mounting groove 50 is configured as an annular disc, the other of the driving member 20 and the driven member 30 is configured as an annular disc by the fixed frame 34 and the magnetic member, and the annular disc is disposed on the fixed frame 34, the driving member 20 and the driven member 30 are disposed in a sleeved manner, and during the transmission, the magnetic field of the first magnetic member 22 on the driving member 20 is conducted to the driven member 30 along the radial direction, so that the second magnetic member 32 is influenced by the magnetic field to drive the driven member 30 to move.
Specifically, when the first mounting groove 50 is disposed on the driven member 30, the driven member 30 is composed of an annular magnetic disc formed by a fixed frame 34 and a second magnetic member 32, and the annular magnetic disc is disposed on the fixed frame 34, and the driving member 20 is located in the first mounting groove 50; when the first mounting groove 50 is disposed on the driving member 20, the driving member 20 is composed of an annular magnetic disk formed by a fixed frame 34 and a first magnetic member 22, and the annular magnetic disk is disposed on the fixed frame 34, and the driven member 30 is located in the first mounting groove 50.
Specifically, the annular disc structure in the first mounting groove 50 may be the driving part 20 or the driven part 30, and the radial inside-outside relationship when the driving part 20 and the driven part 30 are disposed is not limited, and the driving part 20 may be used as a structure for providing power to the driven part 30 as long as it is connected to the motor shaft 12, and in manufacturing and practical application, it is only required to ensure that the fixing part 40 is located between the driving part 20 and the driven part 30 and one of the driving part 20 and the driven part 30 is located in the fixing part 40, and the positional relationship between the driving part 20 and the driven part 30 may be set according to actual conditions and requirements, and the first mounting groove 50 is provided on the driving part 20 or the driven part 30 to select, so that the driving part 20 and the driven part 30 may be flexibly mounted.
As shown in fig. 1 to 5, specifically, a first mounting groove 50 is provided on the driven member 30, a fixing member 40 having a second mounting groove 60 is provided in the first mounting groove 50, the driving member 20 is provided in the second mounting groove 60, and the driving member 20 is connected to the motor shaft 12, and the driving member 20, the driven member 30 and the fixing member 40 are sleeved together.
EXAMPLE III
As shown in fig. 1 to 5, in any of the above embodiments, optionally, the driving member 20 is provided with a first through hole 24, the fixing member 40 is provided with a second through hole 36, the driven member 30 is provided with a third through hole 46, and the motor shaft 12 penetrates through the first through hole 24, the second through hole 36 and the third through hole 46, and one end of the motor shaft 12 extends out.
Optionally, the motor assembly further comprises: and an output shaft 70 disposed on the driven member 30, wherein the third through hole 46 penetrates the output shaft 70, the output shaft 70 is disposed coaxially with the motor shaft 12, and one end of the motor shaft 12 extends from the output shaft 70.
In this embodiment, the driving member 20, the fixing member 40 and the driven member 30 are respectively provided with a first through hole 24, a second through hole 36 and a third through hole 46, preferably, the driven member 30 is further provided with an output shaft 70, and the third through hole 46 is provided on the output shaft 70 of the driven member 30 and is provided with the third through hole 46, and the three through holes are coaxially provided on the motor shaft 12, wherein the output shaft 70 and the motor shaft 12 are coaxially provided, so that when the motor is powered on, the motor shaft 12 rotates to drive the driving member 20 to rotate with the motor shaft 12 at the same speed and in the same direction, the output shaft 70 is provided on the driven member 30 as an output end, and the motor shaft 12 penetrates through the output shaft 70 as a second output end, so that the motor assembly has two output ends, and the applicable mode of the motor assembly; further, under the condition that the driving part 20 drives the driven part 30 to rotate towards the direction opposite to that of the driving part 20, the effect that two output ends move in opposite directions can be achieved, the application mode of the motor assembly is further increased, wherein the output shaft 70 and the motor shaft 12 are coaxially arranged, the output shaft 70 and the motor shaft 12 are ensured not to be in contact in the radial direction in the moving process, and further the rotating stability of the output shaft 70 and the motor shaft 12 is ensured.
In any of the above embodiments, optionally, the portion of the motor shaft 12 located in the first through hole 24 is tightly fitted with the driving member 20, so that the driving member 20 rotates with the motor shaft 12.
In any of the above embodiments, optionally, the first through hole 24 and the portion of the motor shaft 12 located in the first through hole 24 are at least one of interference fit, threaded fit or adhesive fit.
In this embodiment, the driving part 20 is fixedly connected to the motor shaft 12 through the first through hole 24, so that the connection manner between the motor shaft 12 and the driving part 20 is simple, and the processing, the assembly and the like are easy, and preferably, at least one of interference fit, thread fit and bonding fit is selected between the first through hole 24 and the motor shaft 12, so that the fixed connection between the driving part 20 and the motor shaft 12 is realized, and the driving part 20 is ensured to rotate along with the motor shaft 12.
Specifically, the first through hole 24 can be formed by selecting a combination of interference fit and bonding fit for the motor, and after the interference fit is set, the position where the first through hole 24 contacts the motor shaft 12 can be secondarily bonded and fixed by using a bonding agent such as glue, so that the stability of connection between the motor shaft 12 and the driving part 20 is further ensured.
Specifically, first through-hole 24 when chooseing for use the screw-thread fit, need consider the problem of the relative first through-hole 24 direction of rotation of motor shaft 12, the direction of rotation of motor shaft 12 can not be the same with the direction of rotation that makes the screw-thread fit become flexible to make at the rotatory in-process of motor shaft 12, constantly fasten between first through-hole 24 and the motor shaft 12, guarantee when using screw-thread fit to connect first through-hole 24 and motor shaft 12, can not make the tie point not flexible along with the operation of motor. And the combination mode of thread fit and bonding fit can also be selected, after the thread fit is set, the position where the first through hole 24 contacts the motor shaft 12 can be secondarily bonded and fixed by using a bonding agent such as glue, and the stability of connection between the motor shaft 12 and the driving part 20 is further ensured.
Example four
As shown in fig. 1 to 5, in an embodiment of the present invention, optionally, the fixing member 40 is fixedly disposed on the motor body 10, and the fixing member 40 further includes: the bracket 44 is provided with a plurality of mounting positions which are distributed at intervals, the bracket 44 is made of non-magnetic conducting materials, and the magnetic conducting pieces 42 are arranged in the mounting positions.
In this embodiment, the fixing member 40 includes a bracket 44 and a magnetic conducting member 42 installed on the bracket 44, wherein the bracket 44 is installed on the motor body 10, so as to achieve the fixed connection between the fixing member 40 and the motor body 10, the magnetic conducting member 42 is used as a medium for conducting a magnetic field and needs to be fixed relative to the driving member 20 and the driven member 30, so that the fixing member 40 with the magnetic conducting member 42 is fixedly installed on the motor body 10, so that the magnetic conducting member 42 does not move relative to the motor body 10, and the bracket 44 itself does not have a magnetic conducting property, so that the fixing member 40 can conduct the magnetic field only at a position where the magnetic conducting member 42 is installed, and according to the arrangement of the magnetic conducting member 42 in the installation slots distributed at intervals, the magnetic conducting member 42 is staggered from the first magnetic member 22 on the driving member 20 and the second magnetic member 32 on the driven member 30 by a certain included angle, the driven member 30 can move in opposite phase relative to the driving member 20, and the magnetic conduction member 42 is arranged in the mounting groove, so that the magnetic conduction member 42 is prevented from falling off.
Specifically, the fixing member 40 is disposed between the driving member 20 and the driven member 30, and the fixing member 40 is provided with a plurality of magnetic conductive members 42 distributed at intervals; in the radial direction along the motor shaft 12, the magnetic conductive member 42 is located between the first magnetic member 22 and the second magnetic member 32, and any two of the first magnetic member 22, the second magnetic member 32, and the magnetic conductive member 42 are distributed at a preset angle.
In this embodiment, a fixing member 40 is further disposed between the driving member 20 and the driven member 30, and a magnetic conducting member 42 is disposed at an interval on the fixing member 40, the magnetic conducting member 42 can conduct a magnetic field generated by the driving member 20, the first magnetic member 22 on the driving member 20 can generate a magnetic field, when the driving member 20 rotates along with the motor shaft 12, the magnetic field generated by the magnetic pole of the first magnetic member 22 can be conducted to the position of the second magnetic member 32 by the magnetic conducting member 42 disposed at an interval, because the magnetic conducting member 42 is disposed at an interval on the fixing member 40, there are positions with higher magnetic resistance disposed at an interval on the fixing member 40, and any two of the first magnetic member 22, the second magnetic member 32 and the magnetic conducting member 42 are disposed at a preset angle in a staggered manner, during the rotation of the driving member 20, the magnetic pole of the first magnetic member 22 can magnetize the magnetic conducting member 42 at a corresponding position, the magnetic conducting member 42 can attract the opposite magnetic pole of the second magnetic member 32, according to the principle of the shortest magnetic circuit, the magnetic poles of the first magnetic members 22 alternately attract the opposite magnetic poles of the second magnetic members 32 on the driven member 30, so that the driven member 30 is driven by the second magnetic members 32 to rotate in the opposite direction relative to the driving member 20. And the magnetic transmission between the driving part 20 and the driven part 30 replaces the mechanical gear transmission in the prior art, and the transmission in the opposite direction is realized, and meanwhile, the mechanical friction and collision cannot be generated in the transmission process, so that the noise generated by the mechanical transmission is effectively reduced, and the service life of the motor transmission assembly is effectively prolonged.
Specifically, because the magnetic conducting members 42 are distributed at intervals, and the first magnetic member 22, the second magnetic member 32 and the magnetic conducting members 42 are staggered by a predetermined angle in pairs, when the N pole of one first magnetic member 22 in the driving member 20 moves to the left, the N pole of the first magnetic member 22 passes through the conduction of the magnetic conducting members 42 at the corresponding positions, and the second magnetic member 32 of the driven member 30 is also staggered by a certain angle with the magnetic conducting members 42, the S pole of the second magnetic member 32 corresponding to the N pole of the first magnetic member 22 on the driven member 30 is subjected to the magnetic attraction of the N pole of the first magnetic member 22, so that the S pole of the second magnetic member 32 moves to the N pole of the first magnetic member 22, and the driven member 30 is driven to rotate in the opposite direction of the rotation of the driving member 20.
In any of the above embodiments, optionally, the first magnetic member 22 is a magnet; and/or second magnetic element 32 is a magnet; and/or the magnetically permeable member 42 is made of a soft magnetic material.
In the technical scheme, the first magnetic part 22 arranged on the driving part 20 and the second magnetic part 32 arranged on the driven part 30 are both magnets, and the magnets have the advantages of easily available materials and low production cost; moreover, the first magnetic part 22 and the second magnetic part 32 are both permanent magnets, so that the first magnetic part 22 and the second magnetic part 32 are both magnetic, and the stability and reliability of the transmission process can be ensured; further, the magnetic conducting member 42 is made of soft magnetic material, and has the characteristic of easy magnetization and demagnetization, so that the magnetism of the magnetic conducting member 42 can change along with the change of the magnetic field, and therefore, when the driving member 20 rotates, magnetic conduction can be performed between the driving member 20 and the driven member 30, and stable transmission to the driven member 30 is ensured when the driving member 20 moves along with the motor shaft 12.
EXAMPLE five
As shown in fig. 1 to 5, in any of the above embodiments, optionally, the number of poles of the first magnetic member 22 is different from the number of poles of the second magnetic member 32, and the sum of the number of poles of the first magnetic member 22 and the number of poles of the second magnetic member 32 is equal to the number of the magnetic conductive members 42.
In this embodiment, by setting the number of poles of the first magnetic member 22 and the number of poles of the second magnetic member 32 to be different, the first magnetic member 22 and the second magnetic member 32 are distributed at a certain angle, so as to ensure that the magnetic poles on the first magnetic member 22 and the opposite magnetic poles on the second magnetic member 32 are not all distributed in a one-to-one correspondence manner, and therefore, when the first magnetic member 22 moves, the nearest opposite magnetic poles of the second magnetic member 32 are attracted, so that under the action of a magnetic field, the driving member 20 is driven by the motor shaft 12 to rotate, and the driven member 30 is driven to rotate in the opposite direction, in order to ensure that the power driving member 20 can effectively provide power to the driven member 30, the number of poles of the first magnetic member 22 cannot be equal to the number of poles of the second magnetic member 32, so as to ensure that the magnetic poles of the first magnetic member 22 and the opposite magnetic poles of the second magnetic member 32 are closer to each other when the driving member 20 rotates, and further, the second magnetic member 32 is ensured to receive attraction force pulled in the opposite direction according to the principle of magnetic attraction force, and the sum of the number of poles of the first magnetic member 22 and the number of poles of the second magnetic member 32 is equal to the number of the magnetic conductive members 42, so that the magnetic field among the first magnetic member 22, the magnetic conductive members 42 and the second magnetic member 32 is stable, and the driven member 30 rotates more stably in the opposite direction of the driving member 20.
Specifically, the number of poles of the first magnetic member 22 on the driving member 20 and the number of poles of the second magnetic member 32 on the driven member 30 may be adjusted, and the relationship between the number of poles of the first magnetic member 22 and the number of poles of the second magnetic member 32 may be selected according to the output requirement, if the rotation speed of the driven member 30 is required to be lower than the rotation speed of the motor shaft 12, the number of poles of the second magnetic member 32 may be set to be greater than the number of poles of the first magnetic member 22, or if the rotation speed of the driven member 30 is required to be higher than the rotation speed of the motor shaft 12, the number of poles of the second magnetic member 32 may be set to be less than the number of poles of the first magnetic member 22, so that the rotation speed of the driven member 30 may be adjusted by adjusting the relationship between the number of poles of the first magnetic member 22 and the number of poles of the second magnetic member 32, and it is necessary to note that the number of poles of the first magnetic member 22 may not be equal to the number of the second magnetic member 32 while adjusting the number, the number of the magnetic conductive members 42 needs to be adjusted at the same time, so that the number of the poles of the first magnetic member 22 is not equal to the number of the poles of the second magnetic member 32, and the number of the magnetic conductive members 42 is equal to the sum of the number of the poles of the first magnetic member 22 and the number of the poles of the second magnetic member 32.
In any of the above embodiments, optionally, the projection surfaces of the first magnetic member 22, the magnetic conductive member 42 and the second magnetic member 32 partially coincide in the radial direction along the motor shaft 12.
In this embodiment, the projection surfaces of the first magnetic member 22, the magnetic conductive member 42 and the second magnetic member 32 in the radial direction are partially overlapped, so as to ensure that the first magnetic member 22, the magnetic conductive member 42 and the second magnetic member 32 are all located at the same radial position, when the driving member 20 rotates, it can be ensured that the magnetic conductive member 42 at the corresponding position exists in the radial direction of each first magnetic member 22, and when the driven member 30 rotates therewith, it can be ensured that the magnetic conductive member 42 at the corresponding position exists in the radial direction of each second magnetic member 32, so as to ensure the effect of the magnetic conductive member 42 on the magnetic field conduction, the projection surfaces of the first magnetic member 22, the second magnetic member 32 and the magnetic conductive member 42 in the radial direction are partially overlapped, it is ensured that the magnetic path generated by the first magnetic member 22 can be conducted to the second magnetic member 32 through the magnetic conductive member 42 in the shortest magnetic path, and when the driving member 20 rotates, the stability of the magnetic field generated by the first magnetic member 22 on the second magnetic member 32 is ensured, further ensuring the stability of the force direction of the driven member 30 in the transmission process, so that the driven member 30 rotates stably in the transmission process, and ensuring that the driven member 30 does not shake in the radial direction relative to the motor shaft 12.
Specifically, by specifically limiting the number and the arrangement positions of the first magnetic member 22, the second magnetic member 32 and the magnetic conductive member 42, it is further ensured that when the driving member 20 rotates along with the motor shaft 12, the magnetic conductive member 42 can conduct the magnetic field generated by the first magnetic member 22 on the driving member 20 to the second magnetic member 32 of the driven member 30, and it can be ensured that the magnetic force applied to the magnetic field conducted by the magnetic conductive member 42 of the second magnetic member 32 is uniform, so that the uniform rotation speed of the driven member 30 moving along with the magnetic conductive member is ensured, and the smoothness of the movement of the driven member 30 is ensured.
Specifically, taking fig. 1 to 5 as an example, the driving member 20, the fixing member 40 and the driven member 30 are coaxially arranged, two first magnetic members are arranged on the driving member 20, each first magnetic member has an S pole and an N pole, the S pole of the driving member 20 rotates clockwise along with the motor shaft 12, the magnetic conductive member 42 on the fixing member 40 is influenced by magnetization and conducts the magnetic field of the S pole to the driven member 30, according to the principle that a magnetic circuit is shortest and according to the principle that like poles repel each other and opposite poles attract each other, the magnetic field generated by the S pole on the driving member 20 attracts the nearest N pole on the driven member 30 to move to the position of the S pole on the driving member 20, and the magnetic field generated by the N pole on the driving member 20 attracts the nearest S pole on the driven member 30 to move to the position of the S pole on the driving member 20, thereby achieving magnetic transmission between the driving member 20 and the driven member. And just because the magnetic conduction pieces 42 on the fixing piece 40 are arranged at intervals, and other positions of the fixing piece 40 cannot be magnetized, a magnetic open circuit with a large magnetic resistance is formed, so that the S pole and the N pole of the first magnetic piece on the driving piece 20 alternately attract the N pole and the S pole of the second magnetic piece, the S pole of the first magnetic piece is not caused to always pull the N pole of the same second magnetic piece, and the driven piece 30 is ensured to reversely rotate along with the rotation of the driving piece 20.
EXAMPLE six
Embodiments of the second aspect of the present invention provide a food processor, which includes the motor assembly in any of the above embodiments, and since the food processor of the present invention has the motor assembly provided in any of the first aspects, the food processor provided in the embodiments of the present invention has all the advantages of the motor assembly provided in any of the first aspects, which are not listed here.
In the above embodiment, optionally, the food processor further comprises: the first stirring cutter is connected with a motor shaft 12 of the motor assembly; and/or a second stirring tool connected to the driven member 30 of the motor assembly.
In this embodiment, the motor assembly defined in the first aspect of the present invention can be applied to a food processor including a first stirring tool and/or a second stirring tool, wherein the first stirring tool is disposed on the motor shaft 12, and the second stirring tool is disposed on the output shaft 70 of the driven member 30, so that the first stirring tool and the second stirring tool can simultaneously rotate when the motor is powered on, and the stirring and crushing efficiency can be improved.
Specifically, wherein first stirring cutter and second stirring cutter set up on the motor for detachable, when using single stirring cutter to reach appointed stirring effect, can install another stirring cutter, for example smashing the in-process of eating the material, first stirring cutter and second stirring cutter can rotate along opposite direction, under first stirring cutter and second stirring cutter combined action, can smash edible material ground more thoroughly, when having improved food processing's efficiency, still saved operating time.
EXAMPLE seven
The embodiment of the third aspect of the present invention provides an air supply apparatus, which includes the motor assembly in any one of the above embodiments, and a first fan blade connected to the motor shaft 12 of the motor assembly, and/or a second fan blade connected to the driven member 30 of the motor assembly, and since the air supply apparatus of the present invention has the motor assembly provided in any one of the first aspects, the air supply apparatus provided in the embodiment of the present invention has all the advantages of the motor assembly provided in any one of the first aspects, which are not listed herein.
In this technical solution, the motor assembly defined in the first aspect of the present invention is applied to an air supply device, a first fan blade of the air supply device may be disposed on the motor shaft 12 or a second fan blade may be disposed on the output shaft 70 of the driven member 30, so that one motor assembly can drive the first fan blade and the second fan blade to rotate simultaneously.
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 is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (15)

1. An electric machine assembly, comprising:
a motor body having a motor shaft;
the driving part is connected with the motor shaft, can rotate along with the rotation of the motor shaft, and is provided with at least one first magnetic part;
the driven part is coaxial with the driving part, at least one second magnetic part is arranged on the driven part, and the driven part can be driven to rotate by the acting force between the first magnetic part and the second magnetic part when the driving part rotates;
one of the driving piece and the driven piece is provided with a first mounting groove, and the other of the driving piece and the driven piece is arranged in the first mounting groove.
2. The motor assembly of claim 1, further comprising:
the magnetic conduction piece comprises a fixed piece, a magnetic conduction piece body and a magnetic conduction piece body, wherein the fixed piece is provided with a plurality of magnetic conduction pieces which are distributed at intervals;
the fixing piece is located in the first mounting groove, a second mounting groove is formed in the fixing piece, and the other of the driving piece and the driven piece is arranged in the second mounting groove.
3. The electric machine assembly of claim 2,
the motor shaft is arranged on the driving part, the fixing part and the driven part, the driving part is provided with a first through hole, the fixing part is provided with a second through hole, the driven part is provided with a third through hole, and the motor shaft penetrates through the first through hole, the second through hole, the third through hole and one end of the motor shaft to extend out.
4. The motor assembly of claim 3, further comprising:
the output shaft is arranged on the driven part, the third through hole penetrates through the output shaft, the output shaft and the motor shaft are coaxially arranged, and one end of the motor shaft extends out of the output shaft.
5. The electric machine assembly of claim 2,
one of the driving member and the driven member located in the first mounting groove is configured as an annular disc;
one of the driving member and the driven member having the first mounting groove includes: the annular magnetic disc is formed by the second magnetic part structure and is arranged on the fixing frame.
6. The electric machine assembly of claim 2,
the fixed part is fixed to be set up on the motor body, the fixed part still includes:
the magnetic steel bracket comprises a bracket, wherein a plurality of installation positions distributed at intervals are arranged on the bracket, the bracket is made of a non-magnetic conductive material, and the magnetic conductive member is arranged in the installation positions.
7. The electric machine assembly according to any of claims 2 to 6,
in the radial direction along the motor shaft, the magnetic conduction piece is located between the first magnetic piece and the second magnetic piece, and any two of the first magnetic piece, the second magnetic piece and the magnetic conduction piece are distributed in a staggered preset angle.
8. The electric machine assembly according to any of claims 2 to 6,
the number of the poles of the first magnetic part is different from that of the poles of the second magnetic part, and the sum of the number of the poles of the first magnetic part and that of the second magnetic part is equal to the number of the magnetic conducting parts.
9. The electric machine assembly according to any of claims 2 to 6,
in the radial direction along the motor shaft, the projection surface parts of the first magnetic part, the magnetic conduction part and the second magnetic part are overlapped.
10. The electric machine assembly of claim 3,
the part of the motor shaft, which is positioned in the first through hole, is tightly matched with the driving part, so that the driving part rotates along with the motor shaft.
11. The electric machine assembly of claim 10,
the first through hole and the part of the motor shaft, which is positioned in the first through hole, are in interference fit, threaded fit or bonding fit.
12. The electric machine assembly according to any of claims 2 to 6,
the first magnetic part is a magnet; and/or
The second magnetic part is a magnet; and/or
The magnetic conduction piece is made of soft magnetic materials.
13. A food processor, comprising:
an electric motor assembly as claimed in any one of claims 1 to 12.
14. The food processor of claim 13, further comprising:
the first stirring cutter is connected with a motor shaft of the motor assembly; and/or
And the second stirring cutter is connected with the driven part of the motor component.
15. An air supply device, comprising:
the electric machine assembly of any one of claims 1 to 12; and
the first fan blade is connected with a motor shaft of the motor assembly, and/or the second fan blade is connected with a driven part of the motor assembly.
CN201910785982.2A 2019-08-23 2019-08-23 Motor assembly, food processor and air supply device Active CN112421871B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910785982.2A CN112421871B (en) 2019-08-23 2019-08-23 Motor assembly, food processor and air supply device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910785982.2A CN112421871B (en) 2019-08-23 2019-08-23 Motor assembly, food processor and air supply device

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CN112421871B CN112421871B (en) 2024-04-05

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104362829A (en) * 2014-12-05 2015-02-18 刁俊起 Permanent magnet speed controller with fixed magnetic gap
CN206333800U (en) * 2016-09-05 2017-07-18 广东美的生活电器制造有限公司 Food cooking machine
CN109419389A (en) * 2017-08-31 2019-03-05 佛山市顺德区美的电热电器制造有限公司 Food processor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104362829A (en) * 2014-12-05 2015-02-18 刁俊起 Permanent magnet speed controller with fixed magnetic gap
CN206333800U (en) * 2016-09-05 2017-07-18 广东美的生活电器制造有限公司 Food cooking machine
CN109419389A (en) * 2017-08-31 2019-03-05 佛山市顺德区美的电热电器制造有限公司 Food processor

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