WO2021036187A1

WO2021036187A1 - Electric motor, air supply device, and household appliance

Info

Publication number: WO2021036187A1
Application number: PCT/CN2020/072142
Authority: WO
Inventors: 邱水兵; 罗伟锦; 梁显堂; 陈炜杰; 叶似锦
Original assignee: 广东美的环境电器制造有限公司; 美的集团股份有限公司
Priority date: 2019-08-23
Filing date: 2020-01-15
Publication date: 2021-03-04
Also published as: CN112421875A; CN112421875B

Abstract

Provided are an electric motor, an air supply device, and a household appliance. The electric motor comprises a rotor structure, and a stator structure detachably connected to the rotor structure, wherein the stator structure comprises at least one stator iron core arranged on one side, in a radial direction, of the rotor structure for driving the rotor structure to rotate. According to the technical solution of the present application, the eccentric configuration between the electric motor and a load can be achieved so as to reduce the overall amount of space occupied by the electric motor, and the configuration positions of the rotor structure and the stator structure can also be changed according to the specific structure of the load so as to achieve a light weight and a wide application range.

Description

Motors, air supply devices and household appliances

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office of China, the application number is "2019107858726", and the application name is "motors, air supply devices and household appliances" on August 23, 2019, the entire contents of which are by reference Incorporated in this application.

Technical field

This application relates to the technical field of fans, and specifically to a motor, an air supply device and a household appliance.

Background technique

In the prior art, a conventional motor is composed of a stator and a rotor nested inside and outside. When the motor is driven externally, the load is usually driven by the shaft of the motor to rotate. Therefore, due to the limitation of the structure of the motor itself, the entire motor is increased. The size of the product in the axial direction. Among them, the stator and the rotor are arranged coaxially, and a closed structure needs to be formed in the circumferential direction. Therefore, the mutual position of the stator and the rotor is not flexible, and the problem of occupying a large space is not conducive to the lightness of the product. Quantitative design.

Summary of the invention

This application aims to solve at least one of the technical problems existing in the prior art or related technologies.

To this end, an object of the present application is to provide a motor.

Another object of the present application is to provide an air blowing device.

Another object of this application is to provide a household appliance.

In order to achieve the above objective, the technical solution of the first aspect of the present application provides a motor, including: a rotor structure; a stator structure, detachably connected to the rotor structure, the stator structure including at least one located on one side of the rotor structure in the radial direction The stator core is used to drive the rotor structure to rotate.

The motor in the technical solution according to the first aspect of the present application includes a rotor structure and a stator structure. Driven by the stator structure, the rotor structure does not need a drive shaft, and the solution can be realized by directly driving the load. In addition, the stator structure includes at least one stator core, and the stator core is arranged on one side of the rotor structure in the radial direction, so that the stator core can drive the rotor structure on the inside or outside, which changes the existing traditional motors. The structure and location of the stator, that is, the stator structure does not need to form a closed structure or a symmetrical structure in the circumferential direction inside or outside the rotor structure, and only needs at least one stator core corresponding to the side of the rotor structure in the radial direction to drive the rotor. The structure rotates to drive the load to move; at the same time, by improving the position of the stator structure, the overall volume and weight of the motor can be further reduced, and the space occupation in the axial direction of the motor can be reduced, for example, the use of a fan in a fan The applied motor can cancel the motor installation position behind the fan blade, which is beneficial to realize the flattening and lightweight of the fan, reduce the weight of the fan head part and the effect of eccentricity, reduce unnecessary counterweight settings, and improve the overall stability Sex.

Among them, because the stator structure and the rotor structure are detachable, when the motor is used to drive the load, the load and the rotor structure can be separately removed for cleaning or replacement, which is convenient for operation.

It can be understood that the rotor structure of the present application can be directly connected to the load, thereby eliminating the drive shaft of the traditional motor, forming a coreless motor, changing the setting method of the motor and the load, so that the motor does not need to be arranged axially with the load, which can reduce The size of the small motor in the axial direction effectively reduces the space occupation, which is conducive to the realization of lightweight and miniaturized design.

It needs to be emphasized that the stator structure is arranged on one side of the rotor structure according to the setting position of the rotor structure, so that the motor forms an eccentric structure as a whole, and the setting position of the stator structure is more flexible, making the motor suitable for loads of different structures. Further, the stator structure can be provided on the outer side or inner side of the rotor structure in the circumferential direction, or can be provided on the side of the rotor structure in the axial direction.

Wherein, the rotor structure as a whole can be circular ring, square ring, elliptical ring or other closed ring.

In addition, the motor in the above technical solution provided by this application may also have the following additional technical features:

In the above technical solution, the motor includes a driving area, the driving area includes at least one stator core, and a part of the rotor structure that is directly opposite to the stator structure.

In this technical solution, the motor includes a drive area, and further, the drive area includes at least one stator core and a part of the rotor structure that is opposite to the stator structure, that is, the stator core in the drive area faces the rotor structure and the stator core. The right part generates driving force to drive the rotor structure to rotate. Among them, due to the fixed position of the stator core, when the rotor structure rotates, the part of the rotor structure directly opposite to the stator structure in the driving zone changes accordingly, but the tangential driving force received by the entire rotor structure remains unchanged, and then The drive rotor structure continues to rotate to realize the operation of the motor.

Among them, the number of drive areas can be one or more.

In the above technical solution, the stator structure has a first curved surface, the first curved surface faces the rotor structure, the first curved surface is arc-shaped, the rotor structure is circular, and at least part of the stator structure faces the curvature of the side surface of the rotor structure and the curvature of the rotor structure the same.

In this technical solution, by limiting the rotor structure to a circular ring shape, the stator structure has an arc-shaped first curved surface facing the arc of the rotor structure, and the curvature of at least part of the first curved surface is the same as the curvature of the rotor structure, so that at least part of the first curved surface is the same as the curvature of the rotor structure. The first curved surface and the rotor structure are equally spaced, so that at least part of the stator structure maintains a balanced driving force for the rotor structure, which is beneficial to improve the stability of the rotor structure during rotation.

It can be understood that at least part of the arc surface of the first curved surface is parallel to the arc surface of the rotor structure.

In the above technical solution, the first curved surface is in the shape of a circular arc, the rotor structure is in a circular ring shape, and the curvature of the first curved surface is the same as the curvature of the rotor structure.

In this technical solution, by limiting the rotor structure to be circular, the first curved surface is an arc shape, and the curvature of the first curved surface is the same as the curvature of the rotor structure, so that the entire stator structure and the rotor structure are arranged at equal intervals, so that The driving force formed by the stator structure on the rotor structure is always constant during the rotation of the rotor structure, which can further improve the stability of the rotation process of the rotor structure. It can be understood that if the driving force of the stator structure on the rotor structure changes, it is easy to change the rotation rate of the rotor structure and affect the rotation stability of the rotor structure.

Wherein, the arc surface of the first curved surface is always parallel to the arc surface of the rotor structure.

In the above technical solution, the maximum distance between the rotor structure and the stator structure is not more than 4 mm.

By setting the maximum distance between the rotor structure and the stator structure to be no more than 4mm, the gap between the rotor structure and the stator structure can be maintained to prevent the stator structure from interfering with the rotation of the rotor structure, and it can also make the stator structure interfere with the rotor structure. The driving force is as large as possible to improve the rotation efficiency of the rotor structure.

Further, the driving effect is the best when there is no obstruction between the stator structure and the rotor structure.

In the above technical solution, the rotor structure specifically includes at least one magnetic member.

In this technical solution, the rotor structure includes at least one magnetic component, and the magnetic component is generated by the magnetic field of the stator winding on the stator iron core corresponding to the magnetic component, and the force received by the multiple magnetic components is in the same direction , Thereby driving the magnetic parts to rotate in the same direction, driving the load to move with the rotor structure. It can be understood that the longer the length of the magnetic part in the circumferential direction, the longer the time it will be subjected to the magnetic force of the stator structure. Even if the rotor structure only includes one magnetic part, as long as the length of the magnetic part in the circumferential direction is long enough, it can still act on the stator structure. To achieve continuous rotation.

Among them, it should be emphasized that the magnetic parts are arranged on the side of the load, so that when the stator structure is energized, it can provide a tangential magnetic driving force to drive the rotor structure to rotate on the side, thereby driving the load to rotate.

In the above technical solution, the stator structure includes at least two stator teeth arranged on at least one stator core and facing the rotor structure.

In this technical solution, stator teeth are provided on the stator core, and at least two stator teeth provided with stator windings are provided on the stator core by defining at least one stator core facing the rotor structure, so as to form a pair of stator teeth for the rotor structure. The force of the magnetic field drives the rotor structure to rotate, which in turn drives the load to run.

It can be understood that the stator structure includes at least two stator teeth. The at least two stator teeth can be provided on one stator core or on multiple stator cores, that is, the number of stator cores is one or more, The total number of stator teeth on all stator cores is at least two.

In the above technical solution, the number of stator teeth is at least two, and the stator windings on any two stator teeth are energized sequentially and have the same polarity; or the number of stator teeth is at least two, and the stator windings on any two stator teeth Simultaneously energize with different polarities, and the magnetic poles of the stator windings on any two stator teeth alternate.

In this technical solution, the stator core is provided with stator teeth. By limiting the number of stator teeth on the stator core to at least two, by sequentially energizing the stator windings on any two stator teeth with the same polarity, The rotor structure is subjected to the action of the stator windings on the two stator teeth in turn to generate the force in the same direction, so that the rotor structure continues to rotate in the same direction; in addition, the stator windings on any two stator teeth can also be energized and polarized at the same time The difference is that through the alternating magnetic poles of the stator windings on any two stator teeth, a continuous force in the same direction is generated on the rotor structure, and the rotor structure is driven to continuously rotate in the same direction.

It can be understood that at least two stator teeth can be provided on the same stator core or on different stator cores.

In the above technical solution, the end surface of the stator tooth shoe of each stator tooth is arranged along the radial direction of the rotor structure, and the end surface of the stator tooth shoe faces the rotation axis of the rotor structure.

In this technical solution, the end surface of the stator tooth shoe defining each stator tooth is arranged along the radial direction of the rotor structure, and the end surface of the stator tooth shoe faces the rotation axis of the rotor structure, so that each stator tooth is arranged corresponding to the rotor structure , So that each stator core can generate a tangential force on the rotor structure to drive the rotor structure to rotate in the same direction.

In the above technical solution, the stator structure includes a stator iron core with three stator teeth, and the end faces of the stator tooth shoes of the three stator teeth have the same distance from the rotor structure.

In this technical solution, by defining the stator structure including the stator core of three stator teeth, and the distance between the end faces of the stator shoes of the three stator teeth and the rotor structure is equal, the rotor structure and the stator teeth of each stator tooth The end faces of the shoes are kept at the same distance to ensure that the magnetic field force received by the rotor structure during the rotation is balanced, thereby improving the stability of the motor during operation.

Wherein, the number of stator iron cores with three stator teeth may be one or multiple, and multiple stator iron cores may be arranged evenly or asymmetrically.

In the above technical solution, the number of stator teeth is at least three, and the stator windings on any two stator teeth are energized sequentially and have the same polarity; or the number of stator teeth is at least three, and the number of stator teeth on any two stator teeth is at least three. The stator windings are energized at the same time with different polarities, and the magnetic poles of the stator windings on any two stator teeth are alternated.

In this technical solution, by limiting the number of stator teeth on the stator core to at least three, and by sequentially energizing the stator windings on any two stator teeth with the same polarity, the rotor structure can be subjected to two stator teeth in sequence. The action of the stator windings on the stator teeth produces the force in the same direction, so that the rotor structure continues to rotate in the same direction; in addition, the stator windings on any two stator teeth can also be energized at the same time with different polarities. The magnetic poles of the stator windings alternate to produce a continuous force in the same direction on the rotor structure, driving the rotor structure to continuously rotate in the same direction.

For example, the number of stator teeth of the stator structure is three, and two adjacent ones of the three stator windings are energized at the same time. Furthermore, the first stator winding and the second stator winding are energized first, and then the second stator winding is energized. And the third stator winding are energized, where the first stator winding generates an N pole magnetic field to attract the S pole of the magnetic part in the rotor structure, and the second stator winding generates an S pole magnetic field to attract the N pole of the magnetic part in the rotor structure, and to the rotor The whole structure forms a tangential force. Then, the second stator winding and the third stator winding are energized. The second stator winding generates an N-pole magnetic field to repel the N-pole of the magnetic part, and the third stator winding generates an S-pole magnetic field to the magnetism. The S pole of the component repels, so that the rotor assembly continues to rotate, and in accordance with this cycle, the rotor assembly continues to rotate.

In particular, the motor of the present application can also realize reverse operation by adjusting the energization sequence of the three stator windings. In short, the third stator winding and the second stator winding are energized first, and then the second stator winding and the first stator winding are energized. The stator winding can be energized to achieve reverse rotation.

In the above technical solution, the motor further includes a magnetism judging device, which is arranged along the circumference of the rotor structure to obtain the rotation direction of the rotor structure relative to the stator structure.

In this technical solution, a magnetic determination device arranged along the circumference of the rotor structure is used to obtain the rotation direction of the rotor structure relative to the stator structure, so that the rotor structure rotates in a certain direction, such as clockwise rotation or Turn counterclockwise.

Among them, the magnetism judging device may be a Hall element or other sensors for detecting magnetism to determine the direction of rotation of the rotor structure and reduce the occurrence of abnormal rotation such as stalling or reversal.

Further, when the stator structure includes two stator teeth, the rotor structure can be driven by energizing the windings on the two stator teeth separately or at the same time. Furthermore, when the stator structure is separately energized, the first stator winding is connected first. N pole, attracting the S pole magnetic part on the rotor structure to move to the first stator winding. At this time, the polarity of the magnetic part corresponding to the second stator winding is N pole. Then, the second stator winding passes the N pole through the repulsive force. When the rotor is driven to rotate, the two stator windings can be energized in turn to achieve rotation; when energized at the same time, the magnetic poles of the two stator windings are opposite. At the corresponding position, adjust the magnetic pole SN of the stator winding to generate repulsive force to the current rotor to form rotation.

In the above technical solution, the number of stator cores is multiple, and the multiple stator cores are arranged along the circumferential direction of the rotor structure.

In this technical solution, by defining a plurality of stator cores to be arranged in the circumferential direction of the rotor structure, and each stator core is provided with at least one stator tooth, so that the rotor structure corresponding to the stator structure is between the stator structure and the stator structure. Keep the same distance between them, which is beneficial to the force balance of the rotor structure in the radial direction. Further, when the multiple stator cores are evenly arranged along the circumference of the rotor structure, it helps to balance the force of the rotor structure in the circumferential direction, reduces the vibration generated during the rotation of the rotor assembly, and keeps the rotor structure rotating. The stability in the process reduces the noise generated by the motor in the working process and prolongs the service life of the motor. In addition, increasing the number of stator teeth can increase the overall magnetic field force of the stator structure, thereby speeding up the rotation rate of the rotor structure. Therefore, a corresponding number of stator teeth can be set according to the speed requirements of the load, thereby expanding the application range of the motor.

In the above technical solution, the motor further includes a supporting structure, and the rotor structure is rotatably arranged on the supporting structure.

In this technical solution, the rotor structure is rotatably arranged on the support structure to limit the radial displacement or axial displacement of the rotor structure through the support structure, so that the axis of the rotor structure when it rotates under the action of the magnetic force of the stator structure is different. The deviation occurs, so as to perform stable power output to the load, which is beneficial to maintain the stability of the motor. It can be understood that the stator structure is arranged on one side of the rotor structure, and the overall force of the rotor structure is not balanced, and a supporting structure is required to limit the rotor structure.

The specific form of the supporting structure includes, but is not limited to, a fixed shaft, a bearing, a fixed turntable, and a magnetic levitation device.

In the above technical solution, the supporting structure is a supporting shaft, and the motor further includes a housing on which a supporting shaft is provided, and the stator structure is fixed on the housing to drive the rotor to rotate around the supporting shaft through the stator structure.

In this technical solution, the motor further includes a housing, and the support structure is specifically a support shaft provided on the housing, which is rotatably provided on the support shaft through the rotor structure, so that the rotor structure rotates around the support shaft and prevents the occurrence of the rotor structure. Radial displacement; and by fixing the stator structure on the housing, the relative distance between the rotor structure and the stator structure remains unchanged, so as to prevent the stator structure from being displaced by the reaction force of the rotor structure, so as not to affect the rotor structure Stability of rotation.

In the above technical solution, the magnetic member is continuously arranged along the circumferential direction.

In this technical solution, the rotor structure is formed into an annular belt-like structure by arranging the magnetic parts on the side surface of the rotor structure continuously in the circumferential direction, so that the rotor structure is subjected to a balanced magnetic force during the rotation process, which is beneficial to maintain the rotor structure Stability during rotation.

In the above technical solution, the magnetic pieces are uniformly arranged along the circumferential direction, and there is a circumferential gap between any two adjacent magnetic pieces.

In this technical solution, by arranging the magnetic parts uniformly in the circumferential direction on the side of the rotor structure, and any two adjacent magnetic parts directly have a circumferential gap, the rotor structure is formed into a discontinuous structure, and a plurality of magnetic parts, etc. They are arranged at intervals along the circumferential direction, so that the magnitude and direction of the magnetic force received by each magnetic member are the same, so as to maintain the stability of the rotor structure during rotation.

In the above technical solution, the magnetic member is an integral structure.

In this technical solution, by arranging the magnetic parts as an integral structure to facilitate the installation and limitation of the magnetic parts, the gap between the multiple magnetic parts and the shaking caused thereby are reduced, which helps to reduce the movement of the magnetic parts. possibility.

In the above technical solution, the shape of the side of the stator structure facing the rotor structure is adapted to the shape of the side surface of the rotor structure.

In this technical solution, by adapting the shape of the side of the stator structure facing the rotor structure to the shape of the side surface of the rotor structure, on the one hand, it is beneficial to keep the distance between each stator tooth of the stator structure and the rotor structure the same. It is conducive to the force balance of the rotor structure. On the other hand, the distance between the stator structure and the rotor structure can be reduced by eliminating the special-shaped structure of the stator structure, which is beneficial to enhance the force received by the rotor structure. It can be understood that if the side of the stator structure facing the rotor structure is provided with special-shaped structures, such as protrusions, grooves, steps, etc., the distance between the stator structure and the rotor structure needs to be increased to prevent the rotation of the rotor structure from being interfered, so that the stator The magnetic effect of the structure on the rotor structure is weakened.

In the above technical solution, the rotor structure can rotate clockwise or counterclockwise relative to the stator structure.

In this technical solution, the rotor structure can rotate clockwise or counterclockwise relative to the stator structure, and can rotate in both positive and negative directions according to the rotation needs of the load, which can meet different load requirements and has high flexibility.

The technical solution of the second aspect of the present application provides an air supply device, including the motor in the technical solution of the first aspect; the fan blade, the rotor structure of the motor including a plurality of magnetic parts is arranged on the side wall surface of the fan blade, and the motor The stator structure and the rotor structure are correspondingly arranged outside and/or inside the fan blade, so that the fan blade is driven to rotate with the rotor structure under the action of the stator structure.

The air supply device in the technical solution according to the second aspect of the present application includes the motor in the above-mentioned first aspect technical solution, so the air supply device has all the beneficial effects of the motor in the above-mentioned first aspect technical solution, and will not be repeated here. . In addition, the air supply device also includes fan blades. The rotor structure of the motor is arranged outside and/or inside the fan blades. That is, the load of the motor is the fan blades. The stator structure corresponding to the rotor structure generates magnetic force on the rotor structure, thereby The driving fan blades are driven to rotate along with the rotor structure to realize the operation of the air supply device.

It should be noted that the stator structure may be separately arranged outside or inside the fan blade, or multiple stator cores may be simultaneously arranged outside the fan blade and inside the fan blade. It can be understood that by providing multiple stator cores, the magnetic force on the rotor structure can be enhanced.

In the above technical solution, the rotor structure is arranged on the outer side wall surface of the fan blade, and the stator structure is arranged outside the fan blade.

In this technical solution, by arranging the rotor structure on the outer side wall surface of the fan blade, the stator structure is arranged outside the fan blade, so that the stator core of the stator structure is arranged opposite to the rotor structure in the radial direction of the rotor structure, and corresponding The action of the magnetic force drives the rotation of the rotor structure. The stator structure is arranged outside the fan blades, which is beneficial to reduce the distance between the stator structure and the rotor structure and enhance the magnetic force.

In the above technical solution, the rotor structure is arranged on the outer side wall surface of the fan blade, and the stator structure is arranged inside the fan blade.

In this technical solution, by arranging the rotor structure on the outer side wall surface of the fan blade, the stator structure is arranged outside the fan blade, so that the stator core of the stator structure is arranged opposite to the rotor structure in the radial direction of the rotor structure, and corresponding The action of the magnetic force drives the rotation of the rotor structure. The stator structure is arranged in the fan blade, which is beneficial to reduce space occupation and can reduce the overall radial size of the air supply device.

In the above technical solution, the rotor structure is arranged on the inner side wall surface of the fan blade, and the stator structure is arranged outside the fan blade.

In this technical solution, by arranging the rotor structure on the inner wall surface of the blade and the stator structure outside the blade, the stator core of the stator structure is arranged opposite to the rotor structure in the radial direction of the rotor structure, and corresponding The action of the magnetic force drives the rotation of the rotor structure. When the stator structure is not suitable for installing in the fan blade, for example, when the overall size of the fan blade is small, or when other parts are provided in the fan blade, the stator structure is arranged outside the fan blade to drive the rotor structure to drive the fan blade to rotate.

In the above technical solution, the rotor structure is arranged on the inner side wall surface of the fan blade, and the stator structure is arranged inside the fan blade.

In this technical solution, by arranging the rotor structure on the inner wall surface of the fan blade and the stator structure in the fan blade, the stator core of the stator structure is arranged opposite to the rotor structure in the radial direction of the rotor structure, and corresponding The action of the magnetic force drives the rotation of the rotor structure. The stator structure is arranged in the fan blade, which is beneficial to reduce the distance between the stator structure and the rotor structure, and can also reduce the overall size of the air blowing device in the radial direction.

In the above technical solution, the air supply device further includes: a first wind hood and a second wind hood that are detachably connected, and after the second wind hood is connected to the first wind hood, an accommodating cavity capable of accommodating at least the rotor structure is formed inside, Wherein, the stator structure is arranged in the containing cavity, and/or the stator structure is arranged outside the containing cavity.

In this technical solution, the air supply device further includes a first wind hood and a second wind hood. The first wind hood and the second wind hood are detachably connected to form a containing cavity inside, and the rotor structure is accommodated together with the fan blades. In the accommodating cavity, the stator structure can be correspondingly arranged in multiple positions, wherein when the stator structure is arranged in the accommodating cavity, the motor can be placed in the accommodating cavity as a whole, and the first wind hood and the second wind hood are paired with each other. The motor and the fan blades play a protective role to avoid interference with external objects during the rotation of the motor driving the fan blades; when the stator structure is arranged outside the containing cavity, it is beneficial to reduce the space occupation and facilitate the disassembly and assembly of the stator structure; When the structure includes multiple stator cores, stator cores can also be provided inside and outside the containing cavity at the same time. In addition, the first wind hood and the second wind hood are detachable to maintain or clean the motor and the fan blades.

In the above technical solution, the support structure of the motor is provided on the side of the first wind shield facing the second wind shield.

In this technical solution, the supporting structure is provided on the side of the first wind hood facing the second wind hood, that is, the supporting structure is installed on the first wind hood, and supports after the first wind hood is connected to the second wind hood. The structure is in the containing space, and the fan blade provided with the rotor structure is supported by the supporting structure to prevent the fan blade from shifting during the rotation.

In the above technical solution, a ventilation grille is provided on the first wind hood and/or the second wind hood.

In this technical solution, a ventilation grille is provided on the first wind hood and/or the second wind hood, so that when the fan blades rotate, the airflow can pass through the first wind hood and/or the second wind hood. The ventilation grille flows to realize the air supply operation of the air supply device. Further, the ventilation grille can be arranged along the axial direction of the fan blade, and can also be arranged along the axial direction and the radial direction of the fan blade at the same time.

In the above technical solution, the support structure of the motor is in the shape of a hollow shaft, and the fan blades are sleeved on the support structure.

In this technical solution, the support structure is arranged in the shape of a hollow shaft, and the fan blades are sleeved on the support structure, so that the hollow structure of the support structure can form an air passage during the rotation of the fan blades driven by the motor, so that the air It can flow from one end of the fan blade to the other end through the air passage, thereby increasing the air flow of the air supply device, which is beneficial to maintaining the stability of the air flow of the air. It can be understood that when there is no air passage at the position of the rotation axis of the fan blade, the airflow will be blocked locally, and the airflow on the air outlet side of the air supply device is likely to generate cyclones, causing airflow turbulence.

In the above technical solution, the support structure of the motor is in the shape of a solid shaft, and the air supply device further includes a shaft sleeve sleeved on the support structure, and the fan blade is sleeved on the shaft sleeve.

In this technical solution, the support structure of the motor is in the shape of a solid shaft. A shaft sleeve is sleeved on the support structure, and the fan blade is sleeved on the shaft sleeve to reduce the gap between the fan blade and the support structure through the shaft sleeve. Friction, thereby reducing the wear of the fan blades, improving the rotation efficiency of the fan blades, while facilitating maintenance and replacement, and helping to reduce the cost of use. It can be understood that if the fan blade is directly connected to the support structure in rotation, the fan blade needs to be replaced as a whole when the wear reaches a certain level, and the fan blade is connected to the support structure through the shaft sleeve, and only the shaft sleeve needs to be replaced.

In the above technical solution, the air supply device further includes a base, the stator structure is arranged on the base, and the base and the fan blade are detachably connected.

In this technical solution, a base that is detachably connected to the fan blade is provided to facilitate the use of the air supply device for cleaning and maintenance of the fan blade; and the stator structure is provided on the base, that is, the stator structure can be independent of the rotor structure Disassembly also facilitates the cleaning and maintenance of the stator structure and the rotor structure respectively. It can be understood that the stator and the rotor of a commonly used motor are usually installed in one piece, and the interior of the motor cannot be cleaned, and impurities such as dust attached to the interior can easily affect the normal operation of the motor.

The third aspect of the technical solution of the present application provides a household appliance, including the motor in the above-mentioned first aspect of the technical solution; a rotating assembly, the rotor structure of the motor is arranged on the rotating assembly, and the stator structure of the motor and the rotor structure are arranged correspondingly, Under the action of the stator structure, the rotating assembly is driven to rotate with the rotor structure.

The household appliance according to the third aspect of the technical solution of the present application includes the motor and the rotating component in the first aspect of the technical solution. The rotor structure of the motor is provided on the rotating component, so that the stator structure corresponding to the rotor structure is provided. Under the action of, the driving rotating component rotates with the rotor structure to realize the operation of the household appliance, thus having all the beneficial effects of the motor in the above-mentioned first aspect of the technical solution, which will not be repeated here.

In the above technical solutions, the household appliances are table fans, ceiling fans, wall fans, tower fans, cooling fans, heaters, purifiers, air conditioners, washing machines, range hoods, bread machines or wall breakers.

In this technical solution, household appliances can be in many forms. Further, household appliances are table fans, ceiling fans, wall fans, tower fans, cooling fans, heaters, purifiers, air conditioners, washing machines, range hoods, bread machines or The wall breaker can all be driven by the motor in the above-mentioned first aspect of the technical solution, and therefore has all the beneficial effects of the above-mentioned motor in the first aspect of the technical solution, and will not be repeated here.

The additional aspects and advantages of the present application will become apparent in the following description, or be understood through the practice of the present application.

Description of the drawings

The above and/or additional aspects and advantages of the present application will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

Fig. 1 shows a schematic structural diagram of a motor according to an embodiment of the present application;

Figure 2 shows a schematic structural diagram of a stator core according to an embodiment of the present application;

Fig. 3 shows a schematic structural diagram of a stator core according to an embodiment of the present application;

Fig. 4 shows a schematic diagram of a rotor structure according to an embodiment of the present application;

Figure 5 shows a schematic structural diagram of a motor according to an embodiment of the present application;

Fig. 6 shows a schematic structural diagram of a stator core according to an embodiment of the present application;

Fig. 7 shows a schematic structural diagram of a motor according to an embodiment of the present application;

Fig. 8 shows a schematic structural diagram of a motor according to an embodiment of the present application;

Fig. 9 shows a schematic structural diagram of an air supply device according to an embodiment of the present application;

Fig. 10 shows a schematic structural diagram of an air supply device according to an embodiment of the present application;

Figure 11 shows a schematic structural diagram of an air supply device according to an embodiment of the present application;

Fig. 12 shows a schematic structural diagram of an air supply device according to an embodiment of the present application;

Figure 13 shows a schematic structural diagram of an air supply device according to an embodiment of the present application;

Figure 14 shows a schematic structural diagram of an air supply device according to an embodiment of the present application;

Fig. 15 shows a schematic structural diagram of an air supply device according to an embodiment of the present application;

Fig. 16 shows a schematic structural diagram of an air blowing device according to an embodiment of the present application.

Among them, the corresponding relationship between the reference signs and component names in Figures 1 to 16 is:

1 motor, 12 rotor structure, 122 magnetic parts, 14 stator structure, 142 stator core, 144 stator teeth, 1442 stator tooth shoe, 16 support structure, 2 air supply device, 21 air passage, 22 fan blade, 24 first Wind hood, 26 second wind hood, 28 ventilation grille, 30 shaft sleeve, 32 base.

detailed description

In order to be able to understand the above objectives, features and advantages of the application more clearly, the application will be further described in detail below with reference to the accompanying drawings and specific implementations. It should be noted that the embodiments of the application and the features in the embodiments can be combined with each other if there is no conflict.

In the following description, many specific details are set forth in order to fully understand this application. However, this application can also be implemented in other ways different from those described here. Therefore, the scope of protection of this application is not covered by the specific details disclosed below. Limitations of the embodiment.

The present application provides an embodiment of the air supply device 2, wherein the air supply device 2 includes an eccentric motor 1 formed by a combination of a stator structure 14 and a rotor structure 12, and a fan blade 22 directly in contact with the rotor structure 12, Among them, the rotor structure 12 includes a plurality of magnetic elements 122 forming a closed pattern, and the stator structure 14 is provided at one or more positions of the inner side, outer side, inner end, and outer end of the ring structure formed by the plurality of magnetic elements 122. When the current direction of the stator windings wound on the stator teeth 144 in the stator structure 14 is controlled, magnetic fields of different polarities can be generated. At this time, the rotor structure 12 can be driven by at least two stator windings with different polarities. , So that the rotor structure 12 drives the load to achieve rotation.

Further, the plurality of magnetic members 122 are enclosed to form a ring shape. Furthermore, there are gaps between the plurality of magnetic members 122 to form an intermittent ring shape.

It should be noted that the eccentric motor 1 specifies that the sub-structure 14 is on one side or one end of the rotor structure 12, and it can be one end in the axial direction or one side in the radial direction, so that the stator structure 14 is discontinuous. Magnetic field.

It is understandable that the fan blade 22 is only a manifestation of the load. When the motor 1 is applied to different products, the form of the load also changes. For example, when applied to a drum washing machine, the load may be the internal rotation of the washing machine. When applied to a wall breaker or juicer, the load can be a blade. In addition, the load can also be a table fan, a ceiling fan, a wall fan, a tower fan, a cooling fan, a heater, a purifier, an air conditioner, a washing machine, a range hood, a toaster or a rotating component in a wall breaker.

Hereinafter, the motor 1 and the air blowing device 2 of some embodiments of the present application will be described with reference to FIGS. 1 to 16.

Example one

As shown in FIGS. 1 to 4, an embodiment of the present application proposes a motor 1, which includes a rotor structure 12 and a stator structure 14 that are detachably connected. Among them, the rotor structure 12 has a circular ring shape, the stator structure 14 is arranged on one side of the rotor structure 12 in the radial direction and there is a gap between the rotor structure 12, and the stator structure 14 includes at least one stator arranged in the circumferential direction of the rotor structure 12 The iron core 142 is used to form a driving force on the rotor structure 12 through the stator iron core 142 to drive the rotor structure 12 to rotate. The motor 1 is provided with a driving zone, which includes a stator core 142 and a portion of the rotor structure 12 and the stator structure 14 that are directly opposite, so that the stator structure 14 in the driving zone interacts with the rotor structure 12 to produce a driving rotor structure 12 The driving force of rotation; in the driving zone, the position of the stator structure 14 remains fixed, and the part of the rotor structure 12 and the stator structure 14 directly opposite changes with the rotation of the rotor structure 12, but the rotor structure 12 and the stator in the driving zone The opposite parts of the structure 14 are all subjected to the same driving force, which in turn drives the rotor structure 12 to continuously rotate in the same direction.

Further, as shown in FIG. 2, the stator structure 14 includes three stator teeth 144, of which the sides of the stator teeth 144 on both sides facing the rotor structure 12 are arc-shaped surfaces, and the curvature of the arc-shaped surfaces is the same as that of the rotor structure 12. , The side of the stator teeth 144 facing the rotor structure 12 is flat.

Furthermore, as shown in FIG. 3, the stator structure 14 includes three stator teeth 144, the side surfaces of each stator tooth 144 facing the rotor structure 12 are circular arc surfaces, and the curvature of the circular arc surface is the same as the curvature of the rotor structure 12.

Among them, as shown in FIG. 1, the stator core 142 is arranged on the outside of the rotor structure 12, there is a gap h between the rotor structure 12 and the stator structure 14, and the maximum value is not more than 4 mm.

In addition, when the number of stator cores 142 is multiple, the distance between any stator core 142 and the rotor structure is not greater than 4 mm.

Further, the gap between the rotor structure 12 and the stator structure 14 is 1 mm, 2 mm, 3 mm, and 4 mm.

Example two

Another embodiment of the present application provides a motor 1, which includes a detachably connected rotor structure 12 and a stator structure 14, wherein the rotor structure 12 has a circular ring shape, and the stator structure 14 is provided on a radial side of the rotor structure 12 There is a gap between the side and the rotor structure 12. The stator structure 14 includes at least one stator core 142 arranged in the circumferential direction of the rotor structure 12 to form a driving force on the rotor structure 12 through the stator core 142, thereby driving the rotor structure 12 to rotate . As shown in Figure 1, the stator structure 14 includes a stator core 142 provided with three stator teeth 144, and windings are provided on the stator teeth 144. The polarities of the two adjacent stator windings are different. The stator windings are energized at the same time, so that the stator structure 14 generates a magnetic field to drive the rotor structure 12 to rotate. Further, the first stator winding and the second stator winding are energized first, so that the first stator winding generates an N-pole magnetic field to the rotor structure 12 The S pole of the middle magnetic member 122 is attracted, and the S pole magnetic field generated by the second stator winding attracts the N pole of the magnetic member 122 in the rotor structure 12, thereby forming a tangential force on the rotor structure 12 as a whole. After rotating for a certain distance under the action of force, the second stator winding and the third stator winding are energized, so that the second stator winding generates an N pole magnetic field to repel the N pole of the magnetic member 122, and the third stator winding generates an S pole magnetic field to the magnetism. The S pole of the piece 122 repels, so that the rotor assembly continues to rotate, and according to this cycle, the rotor assembly continues to rotate.

In addition, by changing the energization sequence of the three stator windings, the reverse rotation of the rotor structure 12 can also be achieved.

Further, the end surfaces of the stator tooth shoes 1442 of the three stator teeth 144 are all circular arc surfaces, and the distance between the end surfaces of each stator tooth shoe 1442 and the rotor structure 12 is the same.

Furthermore, as shown in FIG. 5, the number of stator cores 142 is three, and each stator core 142 is provided with three stator teeth 144 and the three stator cores 142 are evenly arranged along the circumference of the rotor structure 12.

As shown in FIG. 6, the stator structure 14 includes a stator core 142 provided with two stator teeth 144, and stator windings are provided on the stator teeth 144, and the polarities of two adjacent stator windings are different. Further, the motor 1 further includes a magnetic sensor to detect the rotation direction of the rotor structure 12 relative to the stator structure 14. It should be noted that the number of stator teeth 144 on the stator core 142 is not limited by this embodiment. It is also possible to provide only one stator tooth 144 on each stator core 142, and the two stator teeth 144 are respectively provided on two stator cores. A stator core 142 is on.

Wherein, when the stator structure 14 includes two stator teeth 144, the rotor structure can be driven by energizing the windings on the two stator teeth 144 separately or at the same time. Further, when separately energizing, the first stator winding The N pole is first connected to attract the S pole magnetic part on the rotor structure to move to the first stator winding. At this time, the polarity of the magnetic part corresponding to the second stator winding is N pole. Then, the second stator winding is connected to the N pole and passes The repulsive force drives the rotor to rotate, and the two stator windings can be energized in turn to achieve rotation; when energized at the same time, the magnetic poles of the two stator windings are opposite. When rotating to the corresponding position, the magnetic pole SN of the stator winding is adjusted to generate repulsive force to the current rotor to form rotation.

Furthermore, as shown in FIG. 7, the number of stator cores 142 is multiple, and the multiple stator cores 142 are uniformly arranged along the circumferential direction of the rotor structure 12.

Example three

Another embodiment of the present application provides a motor 1 including a rotor structure 12 and a stator structure 14. The rotor structure 12 and the rotor structure 12 are detachably connected. The rotor structure 12 has a circular ring shape, the stator structure 14 is arranged on one side of the rotor structure 12 and there is a gap between the rotor structure 12, and the stator structure 14 includes at least one stator core 142 arranged in the circumferential direction of the rotor structure 12, The stator core 142 generates a driving force on the rotor structure 12 to drive the rotor structure 12 to rotate.

As shown in FIG. 4, the rotor structure 12 includes a plurality of magnetic parts 122, and the stator structure 14 and the magnetic parts 122 are arranged correspondingly. Wherein, a plurality of magnetic members 122 are continuously arranged along the circumferential direction.

Further, the magnetic member 122 is a magnetic sheet, and a plurality of magnetic sheets form a ring structure.

As shown in FIG. 8, a plurality of magnetic members 122 are uniformly arranged along the circumferential direction, and there is a circumferential gap between any two adjacent magnetic members 122.

Example four

Another embodiment of the present application provides an air blowing device 2. As shown in FIG. 9, the air blowing device 2 includes a stator structure 14 and a rotor structure 12 to form an eccentric motor 1, and is directly connected to the rotor structure 12 Contacting the fan blade 22, wherein the rotor structure 12 includes a plurality of magnetic parts 122 forming a closed pattern, which are arranged on the outer side wall surface of the fan blade 22, and the stator structure 14 is arranged on the outer side of the annular structure formed by the plurality of magnetic parts 122. When the current direction of the stator windings wound on the stator teeth 144 in the stator structure 14 is controlled, magnetic fields of different polarities can be generated. At this time, the rotor structure 12 can be driven by at least two stator windings with different polarities. , So that the rotor structure 12 drives the load to achieve rotation.

FIG. 10 shows another arrangement position of the stator structure 14, that is, the plurality of magnetic elements 122 are arranged on the outer side wall surface, and the stator structure 14 is arranged on the inner side of the ring structure formed by the plurality of magnetic elements 122.

Example five

Another embodiment of the present application provides an air supply device 2. As shown in FIG. 11, the air supply device 2 includes an eccentric motor 1 formed by a combination of a stator structure 14 and a rotor structure 12, and is directly connected to the rotor structure 12 Contacting the fan blade 22, wherein the rotor structure 12 includes a plurality of magnetic elements 122 forming a closed pattern, which are arranged on the inner side wall surface of the fan blade 22, and the stator structure 14 is arranged on the inner side of the annular structure formed by the plurality of magnetic elements 122. When the current direction of the stator windings wound on the stator teeth 144 in the stator structure 14 is controlled, magnetic fields of different polarities can be generated. At this time, the rotor structure 12 can be driven by at least two stator windings with different polarities. , So that the rotor structure 12 drives the load to achieve rotation.

FIG. 12 shows another arrangement position of the stator structure 14, that is, the plurality of magnetic elements 122 are arranged on the inner side wall surface, and the stator structure 14 is arranged on the outer side of the ring structure formed by the plurality of magnetic elements 122.

Example Six

An embodiment of the present application provides an air supply device 2. As shown in FIG. 13, the air supply device 2 includes an eccentric motor 1 formed by a combination of a stator structure 14 and a rotor structure 12, and is directly in contact with the rotor structure 12 The rotor structure 12 includes a plurality of magnetic elements 122 forming a closed pattern, and the stator structure 14 is arranged correspondingly to the annular structure formed by the plurality of magnetic elements 122, so as to be wound around the stator in the stator structure 14 When the current direction of the stator windings on the teeth 144 is controlled, magnetic fields of different polarities can be generated. At this time, the rotor structure 12 can be driven by at least two stator windings with different polarities, so that the rotor structure 12 drives the load to rotate . The air supply device 2 also includes a first wind hood 24 and a second wind hood 26 that are detachably connected. The second wind hood 26 is connected to the first wind hood 24 to form a containing cavity inside. The rotor structure 12 and the stator structure 14 are arranged in Hold the cavity. Of course, the stator structure 14 may also be correspondingly arranged outside the accommodating cavity, or multiple stator cores 142 of the stator structure 14 may be arranged in or outside the accommodating cavity at the same time.

Further, as shown in FIG. 14, the supporting structure 16 is provided on the side of the first wind hood 24 facing the second wind hood 26, so that when the first wind hood 24 and the second wind hood 26 are connected, the supporting structure 16 is placed Hold the cavity.

Further, as shown in FIG. 14, the first wind hood 24 and the second wind hood 26 are each provided with a ventilation grille 28, and the ventilation grille 28 extends radially outward to the side of the first wind hood 24 and the first wind hood 24, respectively. The side of the second windshield 26.

Further, as shown in Figure 14, the support structure 16 is a solid shaft, the support structure 16 is sleeved with a sleeve 30, the fan blade 22 is sleeved on the sleeve 30, and the fan blade 22 can pass through the sleeve 30 and the support structure 16 Rotatingly connected.

FIG. 15 shows another form of the support structure 16, that is, the support structure 16 is a hollow shaft. The fan blade 22 is sleeved on the support structure 16, and the hollow part of the support structure 16 forms an air passage 21, so that air can flow from one end of the fan blade 22 through the air passage 21 to the other end.

Example Seven

As shown in Figure 16, an air supply device 2 includes a stator structure 14 and a rotor structure 12 combined to form an eccentric motor 1, and a fan blade 22 directly in contact with the rotor structure 12, wherein the rotor structure 12 includes multiple There are two magnetic elements 122 forming a closed pattern. The stator structure 14 is arranged in the ring structure formed by the plurality of magnetic elements 122, so as to control the current direction of the stator windings arranged on the stator teeth 144 in the stator structure 14 , Magnetic fields of different polarities can be generated. At this time, the rotor structure 12 can be driven by at least two stator windings with different polarities, so that the rotor structure 12 can drive the load to rotate. The air blowing device 2 also includes a base 32, the base 32 is detachably connected to the fan blade 22, the stator structure 14 is provided on the base 32, and the stator structure 14 can be separated from the rotor structure 12 along with the base 32.

On the basis of any of the above embodiments, further, the motor 1 further includes a housing, and the support structure is specifically a support shaft provided on the housing, and is rotatably provided on the support shaft through the rotor structure, so that the rotor structure is wound around The support shaft rotates to prevent radial displacement of the rotor structure; and by fixing the stator structure on the shell, the relative distance between the rotor structure and the stator structure is kept constant to prevent the stator structure from being reacted by the rotor structure The displacement occurs so as not to affect the stability of the rotation of the rotor structure.

In addition, the rotor structure can rotate clockwise or counterclockwise relative to the stator structure, and can rotate in both positive and negative directions according to the rotation needs of the load, which can meet different load requirements and has high flexibility.

The technical solution of the application is described in detail above in conjunction with the accompanying drawings. When the above-mentioned motor is used to drive the load, the load and the rotor structure can be separately removed for cleaning or replacement, which is convenient for operation. In addition, the stator core is arranged on the rotor structure. On the side, on the one hand, the overall size of the motor in the axial direction can be reduced, and on the other hand, the rotor structure can be driven in the circumferential direction to drive the load directly connected to the rotor to rotate.

In this application, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; the term "plurality" refers to two or two Above, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be It is directly connected or indirectly connected through an intermediary. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in this application can be understood according to specific circumstances.

In the description of this application, it needs to be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions shown in the drawings. The or positional relationship is only for the convenience of describing the application and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the application.

In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that specific features, structures, materials or characteristics described in conjunction with the embodiment or examples are included in this application In at least one embodiment or example. In this specification, the schematic representation of the above-mentioned terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

The above are only preferred embodiments of the application, and are not used to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

A motor, which includes:

Rotor structure;

The stator structure is detachably connected to the rotor structure, and the stator structure includes at least one stator core provided on one side of the rotor structure in the radial direction for driving the rotor structure to rotate.
The motor according to claim 1, wherein the motor includes a driving area, the driving area includes at least one of the stator core, and a part of the rotor structure that is opposite to the stator structure.
The motor according to claim 1, wherein it has a first curved surface, the first curved surface faces the rotor structure, the first curved surface is arc-shaped, the rotor structure has a circular ring shape, and at least part of the first curved surface The curvature of a curved surface is the same as the curvature of the rotor structure.
The motor according to claim 1, wherein the first curved surface is in the shape of a circular arc, the rotor structure has a circular ring shape, and the curvature of the first curved surface is the same as the curvature of the rotor structure.
The electric machine according to claim 1, wherein the maximum distance between the rotor structure and the stator structure is less than 4 mm.
The electric machine according to claim 1, wherein the rotor structure includes at least one magnetic member.
The motor according to claim 6, wherein the stator structure includes at least one at least two stator teeth arranged on the stator core and facing the rotor structure.
The motor according to claim 7, wherein:

The number of the stator teeth is at least two, and the stator windings on any two stator teeth are energized sequentially and have the same polarity; or

The number of the stator teeth is at least two, the stator windings on any two stator teeth are energized at the same time with different polarities, and the magnetic poles of the stator windings on any two stator teeth alternate.
8. The electric machine according to claim 7, wherein the end surface of the stator tooth shoe of each stator tooth is arranged along the radial direction of the rotor structure, and the end surface of the stator tooth shoe faces the rotation axis of the rotor structure.
The motor according to claim 7, wherein the stator structure includes a stator core having three stator teeth, and the end faces of the stator teeth shoes of the three stator teeth are at equal distances from the center of rotation of the rotor. equal.
The motor according to claim 8, wherein:

The number of the stator teeth is at least three, and the stator windings on any two stator teeth are energized sequentially and have the same polarity; or

The number of the stator teeth is at least three, and the stator windings on any two stator teeth are energized at the same time with different polarities, and the magnetic poles of the stator windings on any two stator teeth alternate.
The electric machine according to claim 8, wherein the electric machine further comprises a magnetism judging device, the magnetism judging device is arranged along the circumferential direction of the rotor structure, and is used to obtain the difference between the rotor structure and the stator structure. Direction of rotation.
The motor according to claim 11 or 12, wherein the number of the stator cores is multiple, and the plurality of stator cores are arranged along the circumferential direction of the rotor structure.
The motor according to claim 6, further comprising:

A supporting structure, the rotor structure is rotatably arranged on the supporting structure.
The motor according to any one of claims 6 to 12 or 14, wherein the magnetic member is continuously arranged in the circumferential direction.
The motor according to any one of claims 6 to 12 or 14, wherein the magnetic parts are uniformly arranged along the circumferential direction, and there is a circumferential gap between any two adjacent magnetic parts.
The motor according to any one of claims 6 to 12 or 14, wherein the magnetic member is an integral structure.
An air supply device, which includes:

The motor according to any one of claims 1 to 17;

Fan blades, the rotor structure of the motor is arranged on the side wall surface of the fan blade, and the stator structure of the motor and the rotor structure are arranged outside and/or inside the fan blade so as to be in the stator of the motor Under the action of the structure, the fan blades are driven to rotate with the rotor structure.
The air blowing device according to claim 18, wherein the rotor structure is provided on the outer side wall surface of the fan blade, and the stator structure is provided outside the fan blade.
The air blowing device according to claim 18, wherein the rotor structure is provided on the outer side wall surface of the fan blade, and the stator structure is provided in the fan blade.
The air blowing device according to claim 18, wherein the rotor structure is provided on the inner side wall surface of the fan blade, and the stator structure is provided in the fan blade.
The air blowing device according to claim 18, wherein the rotor structure is provided on the inner side wall surface of the fan blade, and the stator structure is provided outside the fan blade.
The air blowing device according to claim 18, further comprising:

A first wind hood and a second wind hood that are detachably connected, and the second wind hood is connected with the first wind hood to form an accommodating cavity at least capable of accommodating the rotor structure,

Wherein, the stator structure is arranged in the containing cavity, and/or the stator structure is arranged outside the containing cavity.
The air blowing device according to claim 23, wherein the supporting structure of the motor is provided on a side of the first wind hood facing the second wind hood.
The air supply device according to claim 23, wherein a ventilation grille is provided on the first wind hood and/or the second wind hood.
The air blowing device according to any one of claims 18 to 25, wherein the supporting structure of the motor is in the shape of a hollow shaft, and the fan blade is sleeved on the supporting structure.
The air blowing device according to any one of claims 18 to 25, wherein the supporting structure of the motor is in the shape of a solid shaft, and the air blowing device further comprises:

A shaft sleeve is sleeved on the supporting structure, and the fan blade is sleeved on the shaft sleeve.
The air blowing device according to any one of claims 18 to 25, further comprising:

The base, the stator structure is arranged on the base, and the motor and the base are detachably connected.
A household appliance, which includes:

The motor according to any one of claims 1 to 17;

Rotating assembly, the rotor structure of the motor is arranged on the rotating assembly, the stator structure of the motor is arranged corresponding to the rotor structure, so that under the action of the stator structure, the rotating assembly is driven to follow the direction The rotor structure rotates.
The household appliance according to claim 29, wherein the household appliance is a floor fan, a ceiling fan, a wall fan, a tower fan, a cooling fan, a heater, a purifier, an air conditioner, a washing machine, a range hood, a bread machine, or a wall breaker in.