CN112412843B

CN112412843B - Air supply device

Info

Publication number: CN112412843B
Application number: CN201910786690.0A
Authority: CN
Inventors: 邱水兵; 罗伟锦; 叶似锦; 梁显堂; 陈炜杰
Original assignee: Midea Group Co Ltd; GD Midea Environment Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Environment Appliances Manufacturing Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2023-06-09
Anticipated expiration: 2039-08-23
Also published as: CN112412843A

Abstract

The invention provides an air supply device, comprising: the fan blade assembly is provided with a wind passing channel along the inner side of the radial direction, so that air can flow from one end of the fan blade assembly to the other end through the wind passing channel; the rotor structure is directly connected with the fan blade assembly; the stator structure is detachably connected with the rotor structure and comprises at least one stator core arranged on one side of the rotor structure and used for driving the rotor structure to rotate so as to drive the fan blade assembly to rotate. According to the technical scheme, the eccentric arrangement between the driving device and the fan blades can be realized, the whole space occupation can be reduced, the arrangement positions of the rotor structure and the stator structure can be changed according to the specific structure of the air supply device, the light weight is facilitated, the application range is wide, in addition, the wind can be compensated through the wind tunnel, the air outlet air flow of the air supply device is increased, and the stability of the air outlet air flow is facilitated to be maintained.

Description

Air supply device

Technical Field

The invention relates to the technical field of fans, in particular to an air supply device.

Background

At present, the fan motor that uses always comprises inside and outside mutually overlapped stator and rotor, when the motor is external to drive, through stator drive rotor and then drive the pivot rotation of motor realize the operation of flabellum or other load, wherein, stator and rotor coaxial setting, and need form enclosed construction in circumference direction, the pivot can outwards stretch out along the axial, thereby make because the restriction of motor self structure, can increase whole product in axial direction's size, the mutual positional relationship of stator and rotor is inflexible simultaneously, be unfavorable for the lightweight design of fan.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

Therefore, the invention aims to provide an air supply device.

In order to achieve the above object, the present invention provides an air supply device, including: the fan blade assembly is provided with a wind passing channel along the inner side of the radial direction, so that air can flow from one end of the fan blade assembly to the other end through the wind passing channel; the rotor structure is directly connected with the fan blade assembly; the stator structure is detachably connected with the rotor structure and comprises at least one stator core arranged on one side of the rotor structure and used for driving the rotor structure to rotate so as to drive the fan blade assembly to rotate.

The air supply device comprises a fan blade assembly, a rotor structure and a stator structure. Through the rotation of the fan blade assembly, the air is stirred to form air flow, and the air flow flows to the air outlet side of the air supply device, so that the operation of the air supply device is realized; through being equipped with the wind passageway in the inboard of flabellum subassembly along radial direction to make the air can pass through the wind passageway from the one end of flabellum subassembly and flow to the other end, thereby reduce the blockage of flabellum subassembly to the air current, increase air supply arrangement's air-out air current, be favorable to keeping the stability of air-out air current. It can be understood that the conventional fan does not have an air passage at the position of the rotation axis of the fan blade, which can locally block the air flow, and the air flow at the air outlet side is easy to generate cyclone, so that the air flow is disturbed. The rotor structure is directly connected with the fan blade assembly, so that a driving shaft in a traditional fan is eliminated, a stator structure in the traditional fan and a setting mode of the rotor structure relative to the fan blade assembly are changed, the stator structure is not required to be axially arranged with the fan blade assembly, the size of the air supply device in the axial direction can be reduced, occupation of space is effectively reduced, and the design of light weight and miniaturization is facilitated.

Optionally, the rotor structure can be arranged on the outer side surface, the inner side surface and the end surface of the fan blade assembly, and can be arranged on the side surface and the end surface at the same time, and even can be arranged at other positions which can be directly connected with the fan blade assembly according to the structural characteristics of the fan blade assembly, and the scheme can be realized by directly driving the fan blade assembly without a driving shaft by the rotor structure under the driving of the stator structure.

In addition, the stator structure comprises at least one stator iron core arranged on one side of the rotor structure, the structure of the stator in the traditional air supply device is changed, namely, a closed annular structure or a symmetrical structure is not required to be formed in or along the periphery of the rotor structure, and the rotor structure can be driven to rotate only by arranging at least one stator iron core corresponding to the rotor structure, namely, one side of the rotor structure is arranged, so that the fan blade assembly is driven to move; meanwhile, the setting position of the stator structure can further reduce the whole volume and weight of the air supply device, especially can reduce the space occupation of the air supply device in the axial direction, can cancel the motor installation position behind the fan blade of the traditional fan, is favorable for realizing the flattening of the air supply device, reduces the weight and eccentric influence of the head part of the air supply device, reduces unnecessary counterweight setting, and is favorable for improving the whole stability.

The stator structure and the rotor structure are detachable, so that when the fan blade assembly of the fan rotates, the fan blade assembly and the rotor structure can be detached together for cleaning or replacement, and the operation is convenient.

It should be emphasized that the stator structure is correspondingly arranged at one side of the rotor structure according to the arrangement position of the rotor structure, so that the air supply device integrally forms an eccentric structure, the arrangement position of the stator structure is more flexible, and the air supply device is applicable to fan blade assemblies with various different structures. Alternatively, the stator structure may be disposed on the outer side and the inner side of the rotor structure in the circumferential direction, or may be disposed on one side of the rotor structure in the axial direction, or may be disposed at other positions according to the specific structure of the fan blade assembly.

The rotor structure can be in a circular ring shape, a square ring shape, an elliptical ring shape or other closed ring shapes.

In addition, the air supply device in the technical scheme provided by the invention can also have the following additional technical characteristics:

in the above technical solution, the fan blade assembly specifically includes: the fan blade comprises a supporting structure and fan blades rotatably arranged on the inner side or the outer side of the supporting structure.

In the technical scheme, the fan blades are rotatably arranged on the inner side or the outer side of the supporting structure, so that the radial displacement or the axial displacement of the fan blades is limited by the supporting structure, the fan blades do not deviate along with the axial line of the rotor structure when the fan blades rotate under the action of the magnetic force of the stator structure, and the stability of the air supply device is maintained. It can be appreciated that the stator structure is disposed on one side of the rotor structure, and the overall stress of the rotor structure is not balanced, and the support structure is required to limit the rotor structure.

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

In the above technical scheme, the wind passage is arranged along the axial direction of the fan blade.

In the technical scheme, the air passing channel is limited to be arranged along the axial direction of the fan blade, so that the direction of the air flow passing through the air passing channel to the air outlet side of the air supply device is kept consistent with the direction of the air flow formed by the fan blade, and the stability of the whole air outlet air flow of the air supply device is prevented from being influenced by the mutual dispersion of multiple air flows.

Further, the rotation axis of the fan blade passes through the wind channel.

In the technical scheme, the rotation axis of the fan blade passes through the air passing channel, namely at least part of the air passing channel extends from one end to the other end of the fan blade assembly along the rotation axis of the fan blade, so that the blocking of air flow near the rotation axis of the fan blade assembly is reduced, the air flow of the central part of the air outlet air flow is supplemented through the air passing channel, and meanwhile, the stability of the air outlet air flow is improved. It can be understood that when the rotating shaft of the fan blade assembly is not provided with an air passage, the air flow can be blocked locally, the air outlet flow of the air supply device is easy to generate cyclone, the air flow is disturbed, the central part of the air outlet flow is supplemented by the air flow through the national air passage, the generation of cyclone can be effectively reduced, and the stability of the air outlet flow is maintained.

Further, the air passage is cylindrical, and the air passage is coaxial with the fan blade.

In the technical scheme, the air passing channel is specifically limited to be cylindrical coaxial with the fan blade, so that the air flow passing through the air passing channel to the air outlet side of the air supply device is positioned in the center of the whole air outlet air flow, the mutual dispersion effect between the air flows can be reduced, the air flow passing through the air passing channel and the air flow formed by the fan blade are favorably combined with each other, and the whole strength of the air outlet air flow is enhanced.

In the above technical scheme, the wind passage and the rotation axis of the fan blade form a preset angle.

In the technical scheme, the through-air channel and the rotating axis of the fan blade are limited to form a preset angle, so that the through-air channel and the rotating axis of the fan blade are inclined, and according to specific air supply requirements, the air flow passing through the through-air channel flows to the air outlet side of the air supply device along the preset angle and is converged with the air outlet air flow formed by the fan blade to form an air flow inclined to a certain direction.

Specifically, the preset angle is any non-zero angle, and further, the preset angle ranges from 0 ° to 30 °.

In the above technical scheme, the wind passage is spiral.

In the technical scheme, the spiral air passing channel is arranged on the fan blade assembly, so that air flow passing through the air passing channel to the air outlet side of the air supply device flows in a spiral mode, the air flow formed by the fan blades can be promoted to be fused, and the integral strength of the air outlet air flow is enhanced.

In the above technical solution, in the axial direction of the fan blade assembly, the inner diameter dimension of the air passage is unchanged.

In the technical scheme, the inner diameter size of the air passing channel is limited to be unchanged along the axial direction of the fan blade assembly, so that the flow of the air passing channel is kept constant, and the flow of the air passing through the air passing channel is not influenced by the change of the inner diameter size of the air passing channel. It can be understood that if the flow of the air passage is too small, the effect of supplementing air flow cannot be achieved, and if the flow of the air passage is too large, the air flow formed by the fan blades is easily scattered, so that the fusion of the air flow is not facilitated, and the integral air outlet air flow of the air supply device is affected.

In the above technical scheme, the motor comprises a driving area, wherein the driving area comprises at least one stator core and a part of the rotor structure opposite to the stator structure.

In the technical scheme, the motor comprises a driving area, and specifically, the driving area comprises at least one stator iron core and a part of the rotor structure, which is opposite to the stator iron core, namely, the part of the driving area, which is opposite to the stator iron core, of the stator iron core is used for generating driving force to drive the rotor structure to rotate. The stator core is fixed in position, so that when the rotor structure rotates, the part of the rotor structure which is opposite to the stator structure in the driving area changes along with the stator structure, but the tangential driving force born by the whole rotor structure is unchanged, and the rotor structure is driven to continuously rotate, so that the operation of the motor is realized.

The number of the driving regions may be one or more.

In the above technical scheme, 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 the curvature of at least part of the side faces of the stator structure, which faces the rotor structure, is the same as the curvature of the rotor structure.

In the technical scheme, the rotor structure is limited to be in a circular ring shape, the stator structure is provided with the first curved surface which faces the arc shape of the rotor structure, and the curvature of at least part of the first curved surface is the same as that of the rotor structure, so that the at least part of the first curved surface and the rotor structure form equal intervals, the driving force formed by the at least part of the stator structure on the rotor structure is kept balanced, and the stability of the rotor structure in the rotating process is improved.

It is understood that at least part of the arcuate surface of the first arcuate surface is parallel to the arcuate surface of the rotor structure.

In the above technical scheme, the first curved surface is arc-shaped, the rotor structure is annular, and the curvature of the first curved surface is the same as the curvature of the rotor structure.

In the technical scheme, the rotor structure is limited to be circular, the first curved surface is circular arc, and the curvature of the first curved surface is identical to that of the rotor structure, so that the stator structure is arranged at equal intervals with the rotor structure integrally, the driving force formed by the stator structure to the rotor structure is always kept constant in the rotation process of the rotor structure, and the stability of the rotation process of the rotor structure can be further improved. It can be understood that if the driving force of the stator structure to the rotor structure is changed, the rotation speed of the rotor structure is easily changed, and the rotation stability of the rotor structure is affected.

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

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

Through setting for the maximum distance of rotor structure and stator structure not more than 4mm, both can satisfy and keep the clearance between rotor structure and the stator structure to prevent that stator structure from producing the interference to rotor structure's rotation, can make the driving force that stator structure produced rotor structure as far as possible again, thereby improve rotor structure's rotation efficiency.

Optionally, the driving effect is optimal when no shield is provided between the stator structure and the rotor structure.

In the above technical solution, the stator structure includes at least two stator teeth provided on at least one stator core and disposed toward the rotor structure.

In the technical scheme, stator teeth are arranged on the stator iron cores, at least two stator teeth provided with stator windings are arranged on at least one stator iron core towards the rotor structure by limiting the magnetic field acting force of the two stator teeth on the rotor structure, the rotor structure is driven to rotate, and then the load is driven to operate.

It is understood that the stator structure includes at least two stator teeth, and the at least two stator teeth may be disposed on one stator core, or disposed on a plurality of stator cores, that is, the number of stator cores is one or more, and the total number of stator teeth on all stator cores is at least two.

In the technical scheme, the number of the stator teeth is at least two, and stator windings on any two stator teeth are sequentially electrified 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 electrified at the same time and have different polarities, and the magnetic poles of the stator windings on any two stator teeth are alternated.

In the technical scheme, stator teeth are arranged on a stator core, and by limiting the number of the stator teeth on the stator core to at least two, the rotor structure can be subjected to the action of the stator windings on the two stator teeth in sequence by sequentially electrifying the stator windings on any two stator teeth and the polarities are the same, so that acting force in the same direction is generated, and the rotor structure continuously rotates in the same direction; in addition, the stator windings on any two stator teeth can be electrified at the same time and have different polarities, and continuous acting force in the same direction is generated on the rotor structure through the alternation of the magnetic poles of the stator windings on any two stator teeth, so that the rotor structure is driven to continuously rotate in the same direction.

It should be noted that, the stator teeth are disposed towards the rotor structure, so that the magnetic field generated by the stator winding after being electrified can drive the rotor, thereby driving the rotor structure to drive the fan blade assembly to rotate.

It will be appreciated that at least two stator teeth may be provided on the same stator core or on different stator cores.

In the above technical scheme, the stator structure comprises a stator core with three stator teeth, and the distances between the end faces of the stator tooth shoes of the three stator teeth and the rotor structure are equal.

In the technical scheme, the stator structure is limited to comprise the stator core with three stator teeth, and the distances between the end faces of the stator tooth shoes of the three stator teeth and the rotor structure are equal, so that the rotor structure and the end faces of the stator tooth shoes of each stator tooth keep the same distance, the size of the magnetic field acting force born by the rotor structure in the rotating process is kept balanced, and the stability of the fan blade assembly in the running process is improved.

The number of the stator cores with three stator teeth can be one or more, and the stator cores can be uniformly distributed or asymmetrically arranged.

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

In the technical scheme, the number of the stator teeth on the stator core is limited to be at least three, and the rotor structure can be subjected to the action of the stator windings on the two stator teeth in sequence to generate acting force in the same direction by sequentially electrifying the stator windings on any two stator teeth and having the same polarity, so that the rotor structure continuously rotates in the same direction; in addition, the stator windings on any two stator teeth can be electrified at the same time and have different polarities, and continuous acting force in the same direction is generated on the rotor structure through the alternation of the magnetic poles of the stator windings on the two stator teeth, so that the rotor structure is driven to continuously rotate in the same direction.

For example, the number of stator teeth of the stator structure is three, two adjacent stator windings are energized simultaneously, specifically, a first stator winding and a second stator winding are energized first, then a second stator winding and a third stator winding are energized, wherein the first stator winding generates an N-pole magnetic field to attract an S-pole of a magnetic piece in the rotor structure, the second stator winding generates an S-pole magnetic field to attract an N-pole of the magnetic piece in the rotor structure, a tangential acting force is formed on the whole rotor structure, then the second stator winding and the third stator winding are energized, the second stator winding generates an N-pole magnetic field to repel an N-pole of the magnetic piece, and the third stator winding generates an S-pole magnetic field to repel an S-pole of the magnetic piece, so that the rotor assembly continues to rotate, and the rotor assembly continuously rotates in a circulation.

In particular, the air supply device can realize reverse operation by adjusting the power-on sequence of the three stator windings, and in short, the third stator winding and the second stator winding are powered on first, and then the second stator winding and the first stator winding are powered on, so that reverse rotation can be realized.

In the above technical scheme, the air supply device further comprises a magnetic judgment device, wherein the magnetic judgment device is arranged along the circumferential direction of the rotor structure and is used for acquiring the rotation direction of the rotor structure relative to the stator structure.

In this solution, the magnetic judgment means arranged along the circumferential direction 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 counterclockwise rotation.

The magnetic judging device can be a Hall element or other sensors for detecting magnetism so as to determine the rotation direction of the rotor structure and reduce the occurrence of abnormal rotation such as stalling or reversing.

Specifically, when the stator structure comprises two stator teeth, the windings on the two stator teeth can be respectively electrified or simultaneously electrified to realize the driving of the rotor structure, specifically, when the windings are respectively electrified, the first stator winding is firstly electrified with N poles, the magnetic piece of the S pole on the rotor structure is attracted to move towards the first stator winding, at the moment, the polarity of the magnetic piece corresponding to the second stator winding is N poles, then the second stator winding is electrified with N poles, the rotor is driven to rotate by repulsive force, and the two stator windings can be sequentially electrified to realize the rotation; when the two stator windings are electrified at the same time, the magnetic poles after the two stator windings are electrified are opposite, for example, the first electrification is performed, the magnetic poles of the two stator windings are respectively N-S, when the rotor rotates to the corresponding position, the magnetic poles of the stator windings are adjusted to be S-N, so that repulsive force is generated on the current rotor, and rotation is formed.

In the above technical scheme, the number of stator core is a plurality of, is equipped with at least one stator tooth on every stator core, and a plurality of stator core set up along rotor structure's circumference.

In the technical scheme, the plurality of stator cores are limited to be arranged along the circumferential direction of the rotor structure, and each stator core is provided with at least one stator tooth, so that the distance between the rotor structure part corresponding to the stator structure and the stator structure is kept consistent, and the stress balance of the rotor structure in the radial direction is facilitated. Further, when a plurality of stator cores are evenly arranged along the circumference of the rotor structure, the stress of the rotor structure in the circumferential direction is balanced, the vibration generated in the rotation process of the rotor assembly is reduced, so that the stability of the rotor structure in the rotation process is maintained, the noise generated in the working process of the air supply device is reduced, and the service life of the air supply device is prolonged. In addition, the number of the stator teeth is increased, so that the overall magnetic field acting force of the stator structure can be increased, and the rotation speed of the rotor structure is accelerated, and accordingly, the corresponding number of the stator teeth can be arranged according to the rotation speed requirement of the fan blade assembly, and the application range is enlarged.

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

In this technical scheme, the rotor structure includes at least one magnetism spare, through the magnetic field of the stator winding on the stator structure that corresponds the setting with magnetism spare, produces effort to magnetism spare, and the effort direction that a plurality of magnetism spare received is the same to drive magnetism spare rotates, realizes driving the flabellum subassembly and rotates. It will be appreciated that the longer the length of the magnetic element in the circumferential direction, the longer the magnetic force applied by the stator structure, and even if the rotor structure comprises only one magnetic element, the continuous rotation can be achieved by the stator structure as long as the length of the magnetic element in the circumferential direction is sufficiently long.

In the above technical scheme, a plurality of accommodating grooves are formed in the side face or the end face of the fan blade, and the magnetic piece is correspondingly arranged in the accommodating grooves.

In this technical scheme, through be equipped with the holding tank that can hold the magnetic part on the side or the terminal surface of flabellum to the installation and the connection of magnetic part on the flabellum, simultaneously, the shape looks adaptation of holding tank and magnetic part, in order to carry out spacing and fixed to the magnetic part, prevent that the magnetic part from taking place to break away from or collide with the flabellum in the rotation in-process, can effectively reduce air supply arrangement's wearing and tearing, improve the reliability.

In the above technical scheme, the magnetic piece is a magnetic sheet, and the magnetic sheet forms an annular structure.

In the technical scheme, the magnetic pieces are magnetic sheets, so that the weight of a single magnetic piece can be reduced, and the weight of the air supply device is facilitated. Meanwhile, the magnetic sheets are convenient to install on the fan blades, the annular structure is formed by the magnetic sheets, so that the stress is balanced in the rotation process of the rotor structure can be kept, excessive increase of the thickness of the fan blades in the radial direction or the axial direction can be avoided, and the overall shape or the structure of the air supply device can not be influenced.

In the above technical solution, the magnetic members are continuously arranged along the circumferential direction.

The magnetic pieces are continuously arranged along the circumferential direction, so that the rotor structure forms an annular band-shaped structure, the rotor structure is subjected to balanced magnetic force in the rotating process, and the stability of the rotor structure in the rotating process is maintained.

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

Through evenly arranging magnetic part along circumference, and the direct circumferential clearance that exists of any two adjacent magnetic part, make rotor structure form intermittent structure, and a plurality of magnetic part etc. are along circumference interval arrangement for the size and the direction of the magnetic force that every magnetic part received are the same, thereby keep rotor structure rotation in-process stability.

In the technical scheme, the magnetic piece is of an integrated structure.

In this technical scheme, through setting up magnetic part structure as an organic whole to the installation and the spacing of magnetic part have reduced the clearance between a plurality of magnetic parts and consequently have led to rocking, help reducing the possibility that the magnetic part takes place to remove.

In the above technical scheme, 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 the technical scheme, 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, so that a stator core of the stator structure is arranged opposite to the rotor structure along the radial direction of the rotor structure, and a corresponding magnetic force effect is generated to drive the rotor structure to rotate. The stator structure is arranged outside the fan blade, so that the distance between the stator structure and the rotor structure is reduced, and the driving force to the rotor structure is enhanced.

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

In the technical scheme, the rotor structure is arranged on the outer side wall surface of the fan blade, and the stator structure is arranged in the fan blade, so that a stator core of the stator structure is arranged opposite to the rotor structure along the radial direction of the rotor structure, and a corresponding magnetic force effect is generated to drive the rotor structure to rotate. Wherein, stator structure locates in the flabellum, is favorable to reducing air supply arrangement along radial direction's size, reduces space occupation.

In the above technical scheme, the fan blade is annular, the rotor structure is arranged on the outer side wall surface of the outer ring of the fan blade, and the stator is arranged between the outer ring and the inner ring of the fan blade.

In this technical scheme, the flabellum is annular, and the flabellum is equipped with at least one cavity that extends along axial direction promptly, through the lateral wall face of locating the outer lane of flabellum with rotor structure, and locate stator structure between the outer lane and the inner circle of flabellum to make stator structure along the radial direction of flabellum correspond the setting with rotor structure, in the cavity of stator structure between outer lane and the inner circle of flabellum promptly, through the magnetic force effect that stator structure produced rotor structure, drive rotor structure drive flabellum rotates, simultaneously, be favorable to reducing air supply arrangement along radial direction's size, reduce space occupation.

In the above technical scheme, the fan blade is annular, the rotor structure is arranged on the outer side wall surface of the outer ring of the fan blade, and the stator is arranged in the inner ring of the fan blade.

In this technical scheme, the flabellum is annular, and the flabellum is equipped with at least one cavity that extends along axial direction promptly, through the lateral wall face of locating the outer lane of flabellum with rotor structure, and locate stator structure in the inner circle of flabellum to make stator structure along the radial direction of flabellum correspond the setting with rotor structure, in the cavity that stator structure located in the inner circle of flabellum promptly, through the magnetic force effect that stator structure produced rotor structure, drive rotor structure drive flabellum rotates, simultaneously, be favorable to reducing air supply arrangement along radial direction's size, reduce space occupation.

In the above technical scheme, 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 the technical scheme, the rotor structure is arranged on the inner side wall surface of the fan blade, the stator structure is arranged outside the fan blade, and the stator core of the stator structure is arranged opposite to the rotor structure along the radial direction of the rotor structure and generates corresponding magnetic force to drive the rotor structure to rotate.

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

In this technical scheme, the flabellum is annular, locates the inside wall face of the outer lane of flabellum through with rotor structure, and locates the stator structure outside the flabellum, and stator structure along the radial direction of flabellum with rotor structure correspond the setting, through the magnetic force effect that stator structure produced rotor structure, drive rotor structure drive flabellum rotates. The stator structure is arranged outside the fan blade, so that when the stator structure is not suitable for being installed in the fan blade, for example, the whole size of the fan blade is smaller or other components are arranged in the fan blade, the stator structure and the rotor structure can be correspondingly arranged, the driving action of the stator structure on the rotor structure is not influenced, and meanwhile, a smaller radial distance between the rotor structure and the stator structure can be kept.

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

In this technical scheme, the flabellum is annular, through the inside wall face of locating the inner circle of flabellum with rotor structure, and locate the stator structure outside the flabellum, and stator structure along the radial direction of flabellum with rotor structure correspond the setting to the magnetic force effect that produces rotor structure through stator structure, drive rotor structure drives the flabellum and rotate. The stator structure is arranged outside the fan blade, so that when the stator structure is not suitable for being installed in the fan blade, for example, the whole size of the fan blade is smaller, or other components are arranged in the fan blade, the stator structure and the rotor structure can be correspondingly arranged, and the driving effect of the stator structure on the rotor structure is not influenced.

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

In the technical scheme, the rotor structure is arranged on the inner side wall surface of the fan blade, the stator structure is arranged in the fan blade, and the stator core of the stator structure is correspondingly arranged with the rotor structure along the radial direction of the rotor structure and generates corresponding magnetic force to drive the rotor structure to rotate. Meanwhile, the radial distance between the rotor structure and the stator structure can be reduced, and the driving force of the stator structure to the rotor structure is enhanced.

In the above technical scheme, the fan blade is annular, the rotor structure is arranged on the inner side wall surface of the outer ring of the fan blade, and the stator structure is arranged between the outer ring and the inner ring of the fan blade.

In this technical scheme, the flabellum is annular, is equipped with at least one cavity that extends along axial direction on the flabellum promptly, through locating the rotor structure on the inside wall face of the outer lane of flabellum, the stator is located between outer lane and the inner circle of flabellum, and in the cavity between outer lane and the inner circle of flabellum was located to the stator structure promptly, and stator structure and rotor structure set up along radial direction correspondence to the magnetic force effect that produces rotor structure through stator structure, drive rotor structure drive flabellum rotation. The stator structure is arranged between the outer ring and the inner ring of the fan blade, so that the radial overall size of the air supply device is reduced, and meanwhile, the driving force of the stator structure to the rotor structure can be increased by reducing the distance between the stator structure and the rotor structure.

In the above technical scheme, the fan blade is annular, the rotor structure is arranged on the inner side wall surface of the outer ring of the fan blade, and the stator is arranged in the inner ring of the fan blade.

In this technical scheme, the flabellum is annular, and the flabellum is equipped with at least one cavity that extends along axial direction promptly, through the inside wall face of locating the outer lane of flabellum with rotor structure, and locate stator structure in the inner circle of flabellum to make stator structure along the radial direction of flabellum correspond the setting with rotor structure, in the cavity that stator structure located in the inner circle of flabellum promptly, through the magnetic force effect that stator structure produced rotor structure, drive rotor structure drive the flabellum and rotate, simultaneously, be favorable to reducing air supply arrangement along radial direction's size, reduce space occupation.

In the above technical scheme, the fan blade is annular, the rotor structure is arranged on the inner side wall surface of the inner ring of the fan blade, and the stator is arranged between the outer ring and the inner ring of the fan blade.

In the technical scheme, the fan blade is annular, namely, at least one concave cavity extending along the axial direction is formed in the fan blade, the rotor structure is arranged on the inner side wall surface of the inner ring of the fan blade, the stator is arranged between the outer ring and the inner ring of the fan blade, namely, the stator structure is arranged in the concave cavity between the outer ring and the inner ring of the fan blade, and the stator structure and the rotor structure are correspondingly arranged along the radial direction, so that the rotor structure is driven to drive the fan blade to rotate through the magnetic force generated by the stator structure on the rotor structure. The stator structure is arranged between the outer ring and the inner ring of the fan blade, so that the radial overall size of the air supply device is reduced. It will be appreciated that when the inner ring of the fan blade is not suitable for mounting the stator structure, for example, when the overall size of the fan blade is small or other components are provided in the fan blade, the stator structure can still be arranged corresponding to the rotor structure, so as not to affect the driving effect of the stator structure on the rotor structure.

In the above technical scheme, the fan blade specifically includes: the fan comprises a first fan blade bracket and a plurality of first fan blades, wherein the plurality of first fan blades are arranged on the outer side wall surface of the first fan blade bracket along the circumferential direction of the fan blades.

In this technical scheme, the flabellum specifically includes first fan blade support and a plurality of first fan blade, locates on the lateral wall of first fan blade support along the circumference of flabellum through a plurality of first fan blades to make first fan blade support rotate under rotor structure's drive, thereby make a plurality of first fan blades that locate on the lateral wall of first fan blade support disturb the air, produce the air current, realize air supply arrangement's air supply operation.

Further, the fan blade further comprises: the second fan blade support is coaxially arranged with the first fan blade support, and the second fan blade support is sleeved outside the first fan blade.

In the technical scheme, the second fan blade support coaxial with the first fan blade support is arranged outside the first fan blade, so that the first fan blade can pass through the first fan blade support at the inner side and the second fan blade support at the outer side to be fixed at the same time, and the stability and the service life of the fan blade during rotation are improved.

Further, the fan blade further comprises: the second fan blades are arranged on the outer side wall surfaces of the fan blades along the circumferential direction of the fan blades.

In the technical scheme, the plurality of second blades are arranged on the outer side wall surface of the fan blade along the circumferential direction, so that the fan blade can form an inner fan blade and an outer fan blade, and the air flow is increased. It should be noted that the first fan blade and the second fan blade may be fan blades with the same shape, or may be fan blades with different shapes, for example, the first fan blade and the second fan blade have different shapes, different sizes, or different inclination angles. In addition, through a plurality of first fan blades and a plurality of second fan blades of locating the inside and outside two circles of flabellum, still be favorable to the diffusion motion to the air current that the flabellum was sent out for the air current is softer, is favorable to improving air supply device's air supply comfort level.

In the above technical scheme, the rotor structure is arranged on the end face of the inner side of the first fan blade bracket; and/or the rotor structure is arranged on the end surface of the inner side of the second fan blade bracket.

In the technical scheme, the fan blade structure comprises a first fan blade support and a second fan blade support which are coaxially arranged, wherein the first fan blade support is arranged on the inner side of the second fan blade support, namely, the fan blade is annular at the moment, the rotor structure can be arranged on the end face of the inner side wall of the first fan blade support, the distance between the rotor structure and the stator structure can be reduced, the distance between the rotor structure and the stator structure is relatively short, the linear displacement of the rotor structure rotating along the circumferential direction is small, and the rotating speed is faster under the action of magnetic force of the same size; the magnetic force is enhanced, and the driving force is increased; the rotor structure can also be arranged on the end face of the inner side wall of the second fan blade bracket, and the rotor structure is relatively far away from the rotating circumferential direction, so that the force arm of the stress of the fan blades can be prolonged, and the rotating efficiency can be improved. Of course, rotor structures can be arranged on the inner side wall end surface of the first fan blade support and the inner side wall end surface of the second fan blade support at the same time, so that the driving force of the stator structure to the rotor structure is further increased through a plurality of rotor structures, and meanwhile, the rotation speed is increased.

It can be understood that the radial direction and the axial direction of the fan blade are provided with a plurality of groups of rotor structures and stator structures, so that the driving force to the fan blade can be effectively enhanced, and the rotation efficiency can be improved.

In the above technical solution, the air supply device further includes: the wind turbine comprises a first wind cover and a second wind cover which are detachably connected, wherein an accommodating cavity capable of accommodating a rotor structure is formed inside the first wind cover and the second wind cover after the first wind cover is connected, the stator structure is arranged in the accommodating cavity, and/or the stator structure is arranged outside the accommodating cavity, and wind passing holes corresponding to wind passing channels are formed in the first wind cover and the second wind cover.

In the technical scheme, the air supply device further comprises a first fan cover and a second fan cover, wherein an accommodating cavity is formed inside the air supply device after the first fan cover and the second fan cover are detachably connected, the rotor structure is accommodated in the accommodating cavity together with the fan blades, the stator structure can be correspondingly arranged at a plurality of positions, the stator structure can be arranged in the accommodating cavity, when being arranged in the accommodating cavity, the motor can be integrally arranged in the accommodating cavity, and the rotor assembly, the stator assembly and the fan blades are protected through the first fan cover and the second fan cover so as not to interfere with external objects in the rotation process of the fan blades; when the stator structure is arranged outside the accommodating cavity, the space occupation is reduced, and the disassembly and assembly of the stator structure are facilitated; when the stator structure includes a plurality of stator cores, the stator cores may be provided inside and outside the accommodating cavity at the same time. Through all being equipped with the wind hole that crosses the wind passageway corresponding on first fan housing and second fan housing to when the flabellum subassembly holding is held in holding the cavity, cross the wind passageway and be unblocked, the air can pass the wind passageway from air supply arrangement's one end and flow to the other end. In addition, the first fan cover and the second fan cover can be detached so as to maintain or clean the fan blades.

In the above technical solution, the supporting structure of the air supply device is disposed at one side of the first fan housing facing the second fan housing.

In this technical scheme, through locating bearing structure on the first fan housing towards one side of second fan housing, bearing structure locates on the first fan housing promptly, and bearing structure is in accommodation space after first fan housing is connected with the second fan housing, supports the flabellum that is equipped with rotor structure through bearing structure to prevent that the flabellum from taking place the skew at the rotation in-process.

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

In the technical scheme, the ventilation grids are arranged on the first fan cover and/or the second fan cover, so that when the fan blades rotate, air flows through the ventilation grids on the first fan cover and/or the second fan cover to flow, and the air supply operation of the air supply device is realized. Specifically, the ventilation grille may be disposed along the axial direction of the fan blade, or may be disposed along both the axial direction and the radial direction of the fan blade.

In the above technical scheme, the air supply device further comprises a base, the stator structure is arranged on the base, and the base is detachably connected with the fan blade assembly.

In the technical scheme, the base detachably connected with the fan blade assembly is arranged, so that the air supply device is convenient to use, and cleaning and maintenance are conveniently carried out on the fan blades; the stator structure is arranged on the base, namely, the stator structure can be independently detached from the rotor structure, and the stator structure and the rotor structure are also convenient to clean and maintain respectively. It can be appreciated that the stator and the rotor of the conventional fan motor are usually integrally installed, so that the interior cannot be cleaned, and impurities such as dust attached to the interior easily affect the normal operation of the fan motor.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 shows a schematic configuration of an air supply device according to an embodiment of the present invention;

FIG. 2 shows a schematic structural view of an air blowing device according to an embodiment of the present invention;

FIG. 3 shows a schematic structural view of an air blowing device according to an embodiment of the present invention;

FIG. 4 shows a schematic structural view of an air blowing device according to an embodiment of the present invention;

fig. 5 shows a schematic structural view of a stator core according to an embodiment of the present invention;

fig. 6 shows a schematic structural view of a stator core according to an embodiment of the present invention;

FIG. 7 shows a schematic structural view of an air blowing device according to an embodiment of the present invention;

fig. 8 shows a schematic structural view of a stator core according to an embodiment of the present invention;

FIG. 9 shows a schematic structural view of an air blowing device according to an embodiment of the present invention;

FIG. 10 shows a schematic structural view of an air blowing device according to an embodiment of the present invention;

FIG. 11 shows a schematic structural view of an air blowing device according to an embodiment of the present invention;

FIG. 12 is a schematic diagram of an air supply device according to an embodiment of the present invention;

FIG. 13 is a schematic view showing a structure of an air blowing device according to an embodiment of the present invention;

FIG. 14 shows a schematic view of a fan blade according to an embodiment of the present invention;

FIG. 15a is a schematic flow diagram of an air supply without an air passage;

FIG. 15b illustrates a flow schematic of an air moving device according to an embodiment of the present invention.

The correspondence between the reference numerals and the component names in fig. 1 to 15 is:

the motor comprises a motor, a rotor structure, a magnetic part 122, a stator structure 14, a stator core 142, stator teeth 144, stator teeth 1442, stator teeth boots 16, a supporting structure 2, an air supply device 21, an air passing channel 22, fan blades 222 containing grooves, a first fan cover 24, a second fan cover 26, a ventilation grille 28, a base 32, a first fan blade bracket 34, a first fan blade 342, a second fan blade bracket 36 and a second fan blade 362.

Detailed Description

In order that the above-recited objects, features and advantages of the present invention will be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

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 described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.

The invention provides an embodiment of an air supply device 2, wherein the air supply device 2 comprises a motor 1 formed by combining a stator structure 14 and a rotor structure 12 to form eccentricity, and fan blades 22 directly contacted with the rotor structure 12, wherein the rotor structure 12 comprises a plurality of magnetic pieces 122 forming closed patterns, the stator structure 14 is arranged at one or more positions of the inner side, the outer side, the inner end and the outer end of an annular structure formed by the plurality of magnetic pieces 122, when controlling the current direction of stator windings wound on stator teeth 144 in the stator structure 14, magnetic fields with different polarities can be generated, and at the moment, the rotor structure 12 can be driven by at least two stator windings with different polarities, so that the rotor structure 12 drives a load to rotate.

Optionally, the plurality of magnetic members 122 are looped around to form a ring, and optionally, gaps exist between the plurality of magnetic members 122 to form a discontinuous ring.

The eccentric motor 1 is a motor in which the stator structure 14 is disposed at one side or end of the rotor structure 12, either one end in the axial direction or one side in the radial direction, so that the stator structure 14 forms a discontinuous magnetic field.

It will be appreciated that the blade 22 is only one representation of the load, and that the form of the load changes when the motor 1 is applied to different products, for example, the load may be a drum inside a washing machine when applied to a drum washing machine, and the load may be a blade when applied to a wall breaking machine or a juice extractor. In addition, the load may be a rotating assembly in a counter fan, ceiling fan, wall fan, tower fan, cooling fan, fan heater or range hood.

Air blowing devices according to some embodiments of the present invention are described below with reference to fig. 1 to 15.

Example 1

An embodiment of the present application provides an air supply device 2, as shown in fig. 1, the air supply device 2 includes a motor 1 formed by combining a stator structure 14 and a rotor structure 12, and a fan blade 22 directly contacting the rotor structure 12, where the rotor structure 12 includes a plurality of magnetic pieces 122 forming a closed pattern, the stator structure 14 is disposed in a ring structure formed by the plurality of magnetic pieces 122, so that when controlling a current direction of a stator winding wound on a stator tooth 144 in the stator structure 14, magnetic fields with different polarities can be generated, at this time, through at least two stator windings with different polarities, driving can be implemented on the rotor structure 12, so that the rotor structure 12 drives a load to implement rotation. The air supply device 2 further includes a first fan housing 24 and a second fan housing 26 that are detachably connected, and after the second fan housing 26 is connected with the first fan housing 24, a containing cavity is formed inside, and the rotor structure 12 and the stator structure 14 are disposed in the containing cavity, however, the stator structure 14 may be correspondingly disposed outside the containing cavity, or a plurality of stator cores 142 of the stator structure 14 are simultaneously disposed inside or outside the containing cavity.

Further, as shown in fig. 2, the support structure 16 is disposed on a side of the first housing 24 facing the second housing 26, such that the support structure 16 is disposed within the receiving cavity when the first housing 24 is connected to the second housing 26.

Further, as shown in fig. 3, the first and

second hoods

24 and 26 are each provided with a ventilation grill 28, and the ventilation grill 28 extends radially outwardly to the side of the first hood 24 and the side of the second hood 26, respectively.

The supporting structure 16 is hollow, the fan blades 22 are sleeved on the supporting structure 16, the hollow part of the supporting structure 16 forms an air passing channel 21, air can flow from one end of the fan blades 22 to the other end through the air passing channel 21, the air passing channel of the supporting structure 16 is arranged along the axial direction of the fan blades, the air passing channel is in a straight cylinder shape, and the axis of the air passing channel coincides with the axis of the fan blades.

Example two

An embodiment of the present application provides an air supply device 2, the air supply device 2 includes a motor 1 formed by combining a stator structure 14 and a rotor structure 12 to be eccentric, and a fan blade 22 directly contacting with the rotor structure 12, wherein the rotor structure 12 includes a plurality of magnetic pieces 122 forming a closed pattern, the stator structure 14 is disposed in a ring-shaped structure formed by the plurality of magnetic pieces 122, so that when controlling the current direction of the stator windings in the stator structure 14 around the stator teeth 144, magnetic fields with different polarities can be generated, at this time, through at least two stator windings with different polarities, driving can be realized on the rotor structure 12, so that the rotor structure 12 drives a load to realize rotation. The air supply device 2 further comprises a first fan housing 24 and a second fan housing 26 which are detachably connected, wherein a containing cavity is formed inside the second fan housing 26 after the second fan housing 26 is connected with the first fan housing 24, and the rotor structure 12 and the stator structure 14 are arranged in the containing cavity.

Wherein, the supporting structure 16 is hollow shaft shape, the fan blade 22 is sleeved on the supporting structure 16, the hollow part of the supporting structure 16 forms a plurality of straight barrel-shaped wind-passing channels 21, the wind-passing channels 21 are expanded from the wind inlet side to the wind outlet side of the fan blade, the included angle between each wind-passing channel and the rotation axis of the fan blade is the same and is 0-30 degrees, alternatively, the included angle is 20 degrees.

Example III

The supporting structure 16 is hollow, the fan blades 22 are sleeved on the supporting structure 16, the hollow portion of the supporting structure 16 forms one or more spiral wind-passing channels 21, and the wind-passing channels rotate around the axes of the fan blades.

Example IV

In another embodiment of the present application, as shown in fig. 4, the air supply device 2 includes a motor 1 formed by combining a stator structure 14 and a rotor structure 12 to form an eccentric, and a supporting structure 16 directly contacting the rotor structure 12, wherein the fan blades are sleeved in the supporting structure 16, and hollow structures are arranged in the fan blades 22 to form an air passage, the rotor structure 12 includes a plurality of magnetic pieces 122 forming a closed pattern, the stator structure 14 is arranged in a ring-shaped structure formed by the plurality of magnetic pieces 122, so that when controlling the current direction of the stator windings in the stator structure 14 around the stator teeth 144, magnetic fields with different polarities can be generated, and 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 a load to rotate. The air supply device 2 further comprises a first fan housing 24 and a second fan housing 26 which are detachably connected, wherein a containing cavity is formed inside the second fan housing 26 after the second fan housing 26 is connected with the first fan housing 24, and the rotor structure 12 and the stator structure 14 are arranged in the containing cavity.

The wind passing channel of the fan blade 22 is arranged along the axial direction of the fan blade, and is in a straight cylinder shape, and the axis of the wind passing channel is coincident with the axis of the fan blade.

Example five

Another embodiment of the present application provides an air supply device 2, the air supply device 2 includes a motor 1 formed by combining a stator structure 14 and a rotor structure 12 to form an eccentric, and a supporting structure directly contacting with the rotor structure 12, wherein a fan blade is sleeved in the supporting structure 16, and a hollow structure is arranged in the fan blade 22 to form an air passage, the rotor structure 12 includes a plurality of magnetic pieces 122 forming a closed pattern, the stator structure 14 is arranged in a ring-shaped structure formed by the plurality of magnetic pieces 122, so that when controlling the current direction of the stator windings in the stator structure 14 around the stator teeth 144, magnetic fields with different polarities can be generated, and 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 a load to rotate. The air supply device 2 further comprises a first fan housing 24 and a second fan housing 26 which are detachably connected, wherein a containing cavity is formed inside the second fan housing 26 after the second fan housing 26 is connected with the first fan housing 24, and the rotor structure 12 and the stator structure 14 are arranged in the containing cavity.

The fan blade 22 includes a plurality of straight cylindrical air-passing channels 21, the air-passing channels 21 are expanded from the air inlet side to the air outlet side of the fan blade, and the included angle between each air-passing channel and the rotation axis of the fan blade is the same and is 0-30 degrees, alternatively, the included angle is 20 degrees.

Example six

Another embodiment of the present application provides an air supply device 2, the air supply device 2 includes a motor 1 formed by combining a stator structure 14 and a rotor structure 12 to form an eccentric, and a supporting structure 16 directly contacting the rotor structure 12, wherein a fan blade 22 is sleeved in the supporting structure 16, and a hollow structure is arranged in the fan blade 22 to form an air passage, the rotor structure 12 includes a plurality of magnetic pieces 122 forming a closed pattern, the stator structure 14 is arranged in a ring-shaped structure formed by the plurality of magnetic pieces 122, so that when the current direction of the stator winding on the stator teeth 144 in the stator structure 14 is controlled, magnetic fields with different polarities can be generated, at this time, driving can be realized on the rotor structure 12 through at least two stator windings with different polarities, so that the rotor structure 12 drives a load to realize rotation. The air supply device 2 further comprises a first fan housing 24 and a second fan housing 26 which are detachably connected, wherein a containing cavity is formed inside the second fan housing 26 after the second fan housing 26 is connected with the first fan housing 24, and the rotor structure 12 and the stator structure 14 are arranged in the containing cavity.

Wherein the hollow portion of the fan blade 22 forms one or more spiral wind-passing channels 21, and the wind-passing channels rotate around the axis of the fan blade.

Example seven

The motor 1 in any of the embodiments of the air moving device described above may comprise a rotor structure 12 and a stator structure 14 that are detachably connected. The rotor structure 12 is in a ring shape, the stator structure 14 is disposed on one side of the rotor structure 12 and has a gap with the rotor structure 12, and the stator structure 14 includes at least one stator core 142 disposed along a circumferential direction of the rotor structure 12, so as to form a driving force on the rotor structure 12 through the stator core 142, thereby driving the rotor structure 12 to rotate. The motor 1 is provided with a driving area, and the driving area comprises a stator iron core 142 and a part of the rotor structure 12 opposite to the stator structure 14, so that the stator structure 14 in the driving area interacts with the rotor structure 12 to generate driving force for driving the rotor structure 12 to rotate; in the driving region, the position of the stator structure 14 is kept fixed, the part of the rotor structure 12 opposite to the stator structure 14 changes along with the rotation of the rotor structure 12, but the part of the rotor structure 12 opposite to the stator structure 14 in the driving region is acted by the same driving force, so that the rotor structure 12 is driven to continuously rotate along the same direction.

Further, as shown in fig. 5, the stator structure 14 includes three stator teeth 144, wherein 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, and the sides of the stator teeth 144 in the middle facing the rotor structure 12 are plane.

Further, as shown in fig. 6, the stator structure 14 includes three stator teeth 144, and a side surface of each stator tooth 144 facing the rotor structure 12 is an arc surface, and a curvature of the arc surface is the same as a curvature of the rotor structure 12.

Alternatively, the maximum gap h between the rotor structure 12 and the stator structure 14 is not greater than 4mm.

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

Example eight

The motor 1 in any of the embodiments of the air supply device described above includes a rotor structure 12 and a stator structure 14 that are detachably connected, where the rotor structure 12 is in a ring shape, the stator structure 14 is disposed on one side of the rotor structure 12 and has a gap with the rotor structure 12, and the stator structure 14 includes at least one stator core 142 disposed along a circumferential direction of the rotor structure 12, so as to form a driving force on the rotor structure 12 through the stator core 142, and further drive the rotor structure 12 to rotate. As shown in fig. 1, the stator structure 14 includes a stator core 142 provided with three stator teeth 144, windings are provided on the stator teeth 144, the polarities of two adjacent stator windings are different, the adjacent two stator windings are energized simultaneously to make the stator structure 14 generate a magnetic field to drive the rotor structure 12 to rotate, specifically, the first stator winding and the second stator winding are energized first to make the first stator winding generate an N-pole magnetic field to attract the S-pole of the magnetic element 122 in the rotor structure 12, the second stator winding generates an S-pole magnetic field to attract the N-pole of the magnetic element 122 in the rotor structure 12, thereby forming an acting force on the whole rotor structure 12 in a tangential direction, after the rotor structure 12 rotates for a certain distance under the acting force, the second stator winding and the third stator winding are energized to make the second stator winding generate an N-pole magnetic field to repel the N-pole of the magnetic element 122, and the third stator winding generates an S-pole magnetic field to repel the S-pole of the magnetic element 122 to make the rotor assembly continue to rotate, and the rotor assembly rotates continuously. 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 arc surfaces, and the distance from the end surface of each stator tooth shoe 1442 to the rotor structure 12 is equal.

Further, as shown in fig. 7, the number of the stator cores 142 is plural, and the plural stator cores 142 are uniformly arranged along the circumferential direction of the rotor structure 12.

As shown in fig. 8, 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 polarities of adjacent two stator windings are different. Further, the motor 1 also comprises a magnetic sensor to detect the direction of rotation of the rotor structure 12 relative to the stator structure 14. It should be noted that, the number of the stator teeth 144 on the stator core 142 is not limited by the embodiment, and only one stator tooth 144 may be provided on each stator core 142, and two stator teeth 144 may be provided on two stator cores 142 respectively.

When the stator structure 14 includes two stator teeth 144, the windings on the two stator teeth 144 can be respectively or simultaneously electrified to realize driving of the rotor structure, specifically, when the windings are respectively electrified, the first stator winding firstly electrified with an N pole to attract the magnetic piece of the S pole on the rotor structure to move towards the first stator winding, at the moment, the polarity of the magnetic piece corresponding to the second stator winding is the N pole, then the second stator winding is electrified with the N pole to drive the rotor to rotate through repulsive force, and the two stator windings can be sequentially electrified to realize rotation; when the two stator windings are electrified at the same time, the magnetic poles after the two stator windings are electrified are opposite, for example, the first electrification is performed, the magnetic poles of the two stator windings are respectively N-S, when the rotor rotates to the corresponding position, the magnetic poles of the stator windings are adjusted to be S-N, so that repulsive force is generated on the current rotor, and rotation is formed.

Further, as shown in fig. 9, the number of the stator cores 142 is plural, and the plural stator cores 142 are uniformly arranged along the circumferential direction of the rotor structure 12.

Example nine

The motor 1 in any of the embodiments of the air blowing device described above includes a rotor structure 12 and a stator structure 14, the rotor structure 12 being detachably connected to the rotor structure 12. The rotor structure 12 is in a ring shape, the stator structure 14 is disposed on one side of the rotor structure 12 and has a gap with the rotor structure 12, and the stator structure 14 includes at least one stator core 142 disposed along a circumferential direction of the rotor structure 12, so as 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 fig. 1, the rotor structure 12 includes a plurality of magnetic members 122, and the stator structure 14 is disposed corresponding to the magnetic members 122. Wherein the plurality of magnetic members 122 are disposed continuously in the circumferential direction.

Further, the magnetic member 122 is a magnetic sheet, and a plurality of magnetic sheets form an annular structure, and each magnetic sheet is disposed in the receiving groove 222 on the side or end surface of the fan blade.

As shown in fig. 10, the plurality of magnetic pieces 122 are uniformly arranged in the circumferential direction, and a circumferential gap exists between any two adjacent magnetic pieces 122.

Examples ten

As shown in fig. 1, the rotor structure 12 of the motor in any of the embodiments of the air blowing device includes a plurality of magnetic members 122 disposed on the outer wall surface of the fan blade 22, and the stator structure 14 is disposed outside the annular structure formed by the plurality of magnetic members 122.

Example eleven

The rotor structure 12 of the motor in any of the embodiments of the blower described above includes a plurality of magnetic members 122 disposed on the outer side wall of the fan blade 22, and the stator structure 14 is disposed inside the annular structure formed by the plurality of magnetic members 122.

Example twelve

As shown in fig. 11, the rotor structure 12 of the motor in any of the embodiments of the air blowing device includes a plurality of magnetic members 122 disposed on the inner side wall surface of the fan blade 22, and the stator structure 14 is disposed inside the annular structure formed by the plurality of magnetic members 122.

Example thirteen

The rotor structure 12 of the motor in any of the embodiments of the blower device described above includes a plurality of magnetic members 122 disposed on the inner side wall surface of the fan blade 22, and the stator structure 14 is disposed outside the annular structure formed by the plurality of magnetic members 122.

Examples fourteen

As shown in fig. 12, the rotor structure 12 of the motor in any of the embodiments of the air blowing device includes a plurality of magnetic members 122 disposed on the air inlet side and/or the air outlet side of the fan blades 22, and the stator structure 14 is disposed outside the annular structure formed by the plurality of magnetic members 122.

Example fifteen

The rotor structure 12 of the motor in any of the embodiments of the air blowing device described above includes a plurality of magnetic members 122 disposed on the air inlet side and/or the air outlet side of the fan blades 22, and the stator structure 14 is disposed inside the annular structure formed by the plurality of magnetic members 122.

Further, the rotor structure and the stator structure are both arranged in the fan blade assembly.

Examples sixteen

As shown in fig. 13, an air supply device 2 includes a motor 1 formed by combining a stator structure 14 and a rotor structure 12 to form an eccentric, and a fan blade 22 directly contacting the rotor structure 12, wherein the rotor structure 12 includes a plurality of magnetic members 122 forming a closed pattern, the stator structure 14 is disposed corresponding to a ring structure formed by the plurality of magnetic members 122, so that when controlling the current direction of a stator winding around a stator tooth 144 in the stator structure 14, magnetic fields with different polarities can be generated, and at this time, through at least two stator windings with different polarities, the rotor structure 12 can be driven, so that the rotor structure 12 drives a load to rotate. The air supply device 2 further includes a base 32, the base 32 is detachably connected to the fan blades 22, the stator structure 14 is disposed 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 one of the above embodiments, optionally, the motor 1 further includes a housing, the support structure is specifically a support shaft disposed on the housing, and the support shaft is rotatably disposed through the rotor structure, so that the rotor structure rotates around the support shaft to prevent the rotor structure from radial displacement; the stator structure is fixedly arranged on the shell, so that the relative distance between the rotor structure and the stator structure is kept unchanged, and the stator structure is prevented from being displaced by the reaction force of the rotor structure, so that the stability of the rotation of the rotor structure is not affected.

In addition, the rotor structure can rotate clockwise or anticlockwise relative to the stator structure, the rotation in the positive and negative directions can be realized according to the rotation requirement of the load, different load requirements can be met, and the flexibility is high.

In any of the above embodiments, as shown in fig. 14, the fan blade 22 includes the first fan blade bracket 34 and the first fan blade 342 disposed on the outer sidewall of the first fan blade bracket 34. When the fan blade 22 is provided with an air passage, the air passage is formed on the inner side of the first fan blade bracket 34 along the radial direction, and when the air passage is formed on the supporting structure, the supporting structure is arranged in the first fan blade bracket 34.

Further, as shown in fig. 14, in order to improve the safety of the product, a second fan blade bracket 36 coaxial with the first fan blade bracket 34 is sleeved outside the first fan blade 342.

As shown in fig. 11, further, in order to increase the air volume, a second fan blade 362 is further provided on the second fan blade bracket 36.

As is apparent from comparing fig. 15a and fig. 15b, the air supply device 2 according to the embodiment provided by the present application has an obvious effect on the supplementary air flow in the whole flow area by setting the air passage, when the air dispersion device without the air passage of fig. 15a rotates, the air flow center is blocked by the motor, the follow-up air flow at a certain distance can be swirled, although the follow-up air flow can be supplemented due to the pressure effect after flowing to a certain area, the follow-up air flow is relatively disturbed due to the uneven deviation of the whole pressure field, and the air flow can be supplemented by the center of the air supply device of fig. 15b, so that the whole flow field is more uniform and stable.

The technical scheme of the invention is described in detail by combining the drawings, the eccentric arrangement between the driving device and the fan blades can be realized, the whole space occupation can be reduced, the arrangement positions of the rotor structure and the stator structure can be changed according to the specific structure of the air supply device, the light weight can be realized, the application range is wide, in addition, the wind can be compensated through the wind tunnel, the wind outlet air flow of the air supply device can be increased, and the stability of the wind outlet air flow can be kept.

In the present invention, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present invention, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean 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 present invention. In this specification, schematic representations of the above terms 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, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An air blowing device, comprising:

a fan blade assembly, wherein an air passing channel is arranged on the inner side of the fan blade assembly along the radial direction, so that air can flow from one end of the fan blade assembly to the other end through the air passing channel;

a rotor structure directly connected to the fan blade assembly;

the stator structure is detachably connected with the rotor structure and comprises at least one stator iron core arranged on one side of the rotor structure and used for driving the rotor structure to rotate so as to drive the fan blade assembly to rotate;

the wind passing channel and the rotating axis of the fan blade form a preset angle, so that the wind passing channel and the rotating axis of the fan blade form an inclined shape;

in the axial direction of the fan blade, the inner diameter size of the air passage is unchanged.

2. The air moving device as claimed in claim 1, wherein said fan blade assembly comprises: the fan blade comprises a supporting structure and fan blades rotatably arranged on the inner side or the outer side of the supporting structure.

3. The air supply device according to claim 2, wherein the air passage is provided along an axial direction of the fan blade.

4. A blowing device according to claim 3, wherein the axis of rotation of the fan blade passes through the air passage.

5. The air supply device according to claim 4, wherein the air passage is cylindrical, and the air passage is coaxial with the fan blade.

6. The air supply device according to claim 2, wherein the air passage is spiral.

7. The air supply device of claim 1, further comprising a drive zone, wherein the drive zone includes at least one of the stator cores and a portion of the rotor structure facing the stator structure.

8. The air supply device according to claim 1, wherein 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 annular, and at least a portion of the first curved surface has a curvature identical to a curvature of the rotor structure.

9. The air supply device of claim 8, wherein the first curved surface is circular arc-shaped, the rotor structure is circular ring-shaped, and the curvature of the first curved surface is the same as the curvature of the rotor structure.

10. The air supply device of claim 1, wherein a maximum distance of the rotor structure from the stator structure is less than 4mm.

11. The air moving device as claimed in claim 1, wherein said stator structure includes at least two stator teeth provided on at least one of said stator cores and disposed toward said rotor structure.

12. The air supply device according to claim 11, wherein,

the number of the stator teeth is at least two, and stator windings on any two stator teeth are sequentially electrified and have the same polarity; or (b)

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

13. The air moving device as claimed in claim 12, wherein said stator structure includes a stator core having three of said stator teeth, and end faces of stator teeth shoes of said three stator teeth are equally spaced from said rotor structure.

14. The apparatus of claim 12, wherein the air supply device comprises a fan,

the number of the stator teeth is at least three, and stator windings on any two stator teeth are sequentially electrified and have the same polarity; or (b)

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

15. The air supply device of claim 12, further comprising a magnetic judgment device disposed along a circumferential direction of the rotor structure for acquiring a rotational direction of the rotor structure relative to the stator structure.

16. The air blowing device according to claim 14 or 15, wherein the number of the stator cores is plural, at least one of the stator teeth is provided on each of the stator cores, and plural of the stator cores are provided along a circumferential direction of the rotor structure.

17. The air moving device as claimed in claim 2, wherein said rotor structure includes at least one magnetic member.

18. The air supply device according to claim 17, wherein a plurality of accommodating grooves are formed in the side surface or the end surface of the fan blade, and the magnetic member is correspondingly arranged in the accommodating grooves.

19. The air supply device of claim 17, wherein the magnetic member is a magnetic sheet, and the plurality of magnetic sheets are uniformly disposed on the side surface or the end surface of the fan blade.

20. The air blowing apparatus of claim 17, wherein the magnetic members are disposed continuously in a circumferential direction.

21. The air blowing apparatus of claim 17, wherein the magnetic members are disposed circumferentially uniformly with a circumferential gap between any two adjacent magnetic members.

22. The air moving device as claimed in claim 17, wherein said magnetic member is of unitary construction.

23. The air supply device according to any one of claims 2 to 6 or 7 to 15 or 17 to 22, wherein the rotor structure is provided on an outer side wall surface of the fan blades, and the stator is provided outside the fan blades.

24. The air supply device according to any one of claims 2 to 6 or 7 to 15 or 17 to 22, wherein the rotor structure is provided on an outer side wall surface of the fan blades, and the stator is provided in the fan blades.

25. The air supply device according to any one of claims 2 to 6 or 7 to 15 or 17 to 22, wherein the fan blades are annular, the rotor structure is disposed on an outer side wall surface of an outer ring of the fan blades, and the stator is disposed between the outer ring and an inner ring of the fan blades.

26. The air supply device according to any one of claims 2 to 6 or 7 to 15 or 17 to 22, wherein the fan blades are annular, the rotor structure is arranged on an outer side wall surface of an outer ring of the fan blades, and the stator is arranged inside an inner ring of the fan blades.

27. The air supply device according to any one of claims 2 to 6 or 7 to 15 or 17 to 22, wherein the rotor structure is provided on an inner side wall surface of the fan blades, and the stator is provided outside the fan blades.

28. The air supply device according to any one of claims 2 to 6 or 7 to 15 or 17 to 22, wherein the fan blades are annular, the rotor structure is arranged on the inner side wall surface of the outer ring of the fan blades, and the stator is arranged outside the fan blades.

29. The air supply device according to any one of claims 2 to 6 or 7 to 15 or 17 to 22, wherein the fan blades are annular, the rotor structure is disposed on an inner side wall surface of an inner ring of the fan blades, and the stator is disposed outside the fan blades.

30. The air supply device according to any one of claims 2 to 6 or 7 to 15 or 17 to 22, wherein the rotor structure is provided on an inner side wall surface of the fan blades, and the stator is provided in the fan blades.

31. The air supply device according to any one of claims 2 to 6 or 7 to 15 or 17 to 22, wherein the fan blades are annular, the rotor structure is disposed on an inner side wall surface of an outer ring of the fan blades, and the stator is disposed between the outer ring and an inner ring of the fan blades.

32. The air supply device according to any one of claims 2 to 6 or 7 to 15 or 17 to 22, wherein the fan blades are annular, the rotor structure is disposed on an inner side wall surface of an outer ring of the fan blades, and the stator is disposed within an inner ring of the fan blades.

33. The air supply device according to any one of claims 2 to 6 or 7 to 15 or 17 to 22, wherein the fan blades are annular, the rotor structure is disposed on an inner side wall surface of an inner ring of the fan blades, and the stator is disposed between an outer ring and the inner ring of the fan blades.

34. The air supply device according to any one of claims 2 to 6 or 7 to 15 or 17 to 22, wherein the fan blade includes:

the fan comprises a first fan blade bracket and a plurality of first fan blades, wherein the plurality of first fan blades are arranged on the outer side wall surface of the first fan blade bracket along the circumferential direction of the fan blades.

35. The air moving device of claim 34, wherein the fan blades further comprise:

the second fan blade support is coaxially arranged with the first fan blade support, and the second fan blade support is sleeved outside the first fan blade.

36. The air moving device of claim 35, wherein the fan blades further comprise:

The plurality of second fan blades are arranged on the outer side wall surfaces of the fan blades along the circumferential direction of the fan blades.

37. The air supply device of claim 36, wherein the rotor structure is disposed on an end surface of an inner side of the first fan blade bracket; and/or the rotor structure is arranged on the end face of the outer side of the second fan blade bracket.

38. The air blowing device according to any one of claims 1 to 6 or 7 to 15 or 17 to 22, further comprising:

the first fan cover and the second fan cover are detachably connected, a containing cavity which can at least contain the rotor structure is formed inside the second fan cover after the second fan cover is connected with the first fan cover,

the stator structure is arranged in the accommodating cavity, and/or the stator structure is arranged outside the accommodating cavity, and the first fan housing and the second fan housing are respectively provided with a wind passing hole corresponding to the wind passing channel.

39. The air moving device of claim 38, wherein the support structure of the air moving device is disposed on a side of the first air housing facing the second air housing.

40. The air moving device as claimed in claim 39, wherein a ventilation grille is provided on said first fan housing and/or said second fan housing.

41. The air blowing device according to any one of claims 1 to 6 or 7 to 15 or 17 to 22, further comprising:

the stator structure is arranged on the base, and the base is detachably connected with the fan blade assembly.