CN210769416U

CN210769416U - Fan with cooling device

Info

Publication number: CN210769416U
Application number: CN201921530388.0U
Authority: CN
Inventors: 张平; 周慧珠; 孙兴林; 孙叶琳; 骆兰英
Original assignee: Xuke Mall Shenzhen Co ltd
Current assignee: Xuke Mall Shenzhen Co ltd
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-06-16
Anticipated expiration: 2029-09-16

Abstract

The utility model relates to a fan, including first air-out portion and drive division, first air-out portion includes first base member, and a plurality of first flabellums are stretched out on the surface of first base member, and drive division includes rotor and stator, the stator with the inside cavity of rotor, rotor and first base member are connected to make first air-out portion rotate, still include the supporting part, the stator is connected with the supporting part with the rotor. The utility model discloses the inside of well stator and rotor is the cavity form, makes the structure of fan more simplify, has reduced the load in the drive division working process, makes first air-out portion rotate fast and form the air current under the drive division of drive division, improves the air-out efficiency and the operating power of fan, has optimized the performance of fan.

Description

Fan with cooling device

Technical Field

The utility model relates to a fan and household electrical appliances technical field especially relate to a fan.

Background

Fans have been widely used in homes, schools, and work places as a main air ventilation means.

The conventional fan generally drives the fan blades to rotate through a rotating shaft arranged at the center of the fan, the fan blades push air to form airflow, and the center of the fan is in a solid structure after the rotating shaft is structurally connected with the center of the fan, so that the fan is heavy, and the working efficiency and the air outlet effect of the fan are affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fan to overcome the low defect that reaches the air-out effect of work efficiency of fan poor.

The utility model provides a technical scheme that above-mentioned technical problem adopted is:

the utility model provides a fan, includes first air-out portion, supporting part and drive division, first air-out portion includes first base member, a plurality of first flabellums are stretched out to the surface of first base member, the drive division includes rotor and stator, the stator with the inside cavity of rotor, the rotor with first base member is connected, so that first air-out portion rotates, the stator with the rotor all with the supporting part is connected.

In a preferred embodiment, the support portion is provided in plurality and distributed along a circumferential direction of the rotor.

In a preferred embodiment, the number of the supporting parts is not less than two, and the supporting parts are distributed in parallel along the axial direction of the rotor.

In a preferred embodiment, the support portion includes a first connecting unit and a second connecting unit that are rotatably connected, the first connecting unit being connected to the rotor, and the second connecting unit being connected to the stator.

In a preferred embodiment, the support portion further includes a third connecting unit passing between the first and second connecting units and fixed relative to the stator.

In a preferred embodiment, the rotor and the stator are in a closed loop.

In a preferred embodiment, the rotor is of a closed-loop type, and not less than two stators are arranged in a circumferential direction of the rotor.

In a preferred embodiment, the stator further comprises a fixing seat, the fixing seat is fixed relative to the supporting portion and the stator, and the fixing seat is hollow inside.

In a preferred embodiment, the stator further includes a fixing base, the fixing base includes a fixing area and a mounting area, the fixing area and the mounting area are arranged at an interval, the stator is mounted in the mounting area, and the supporting portion is mounted in the fixing area.

In a preferred embodiment, still include second air-out portion, second air-out portion includes the second base member, the second base member cup joint in first base member is outside, follows second base member surface to a plurality of second flabellums are stretched out to first base member, first flabellum stretches to the second base member, the windward side orientation of first flabellum with the windward side orientation of second flabellum is opposite, first base member and/or the second base member with the rotor is connected, so that first air-out portion and second air-out portion rotate relatively.

In a preferred embodiment, the first base comprises a plurality of first units, adjacent first units are detachably connected, and each first unit is connected with the first fan blade; the second base body comprises a plurality of second units, the second units are adjacent and detachably connected, and each second unit is connected with the second fan blade.

In a preferred embodiment, a plurality of rows of the first blades are arranged on the first substrate and/or a plurality of rows of the second blades are arranged on the second substrate; the first fan blades and the second fan blades are sequentially and alternately arranged in the axis direction of the first base body or the second base body.

In a preferred embodiment, the air conditioner further comprises a housing, the housing comprises an outer ring and an inner ring, an accommodating cavity is formed between the outer ring and the inner ring, the first air outlet portion is arranged in the accommodating cavity, and the first base body is connected with the inner ring or the outer ring.

In a preferred embodiment, the housing further includes a first end cover and a second end cover, the first end cover and the second end cover are covered between the inner ring and the outer ring, the first end cover is provided with an air inlet, and the second end cover is provided with an air outlet.

The utility model discloses following beneficial effect has at least:

the utility model discloses the inside of well stator and rotor is the cavity form, makes the structure of fan more simplify, has reduced the load in the drive division working process, makes first air-out portion rotate fast and form the air current under the drive division of drive division, improves the air-out efficiency and the operating power of fan, has optimized the performance of fan.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic structural diagram of a first embodiment of a fan;

FIG. 2 is a cross-sectional view of a first embodiment of a fan;

FIG. 3 is an exploded schematic view of the first embodiment of the fan;

FIG. 4 is a schematic view of the housing in the embodiment of FIG. 1;

FIG. 5 is a schematic structural view of the first air outlet portion and the second air outlet portion in the embodiment shown in FIG. 1;

FIG. 6 is a schematic cross-sectional view of the first air outlet portion and the second air outlet portion in the embodiment shown in FIG. 1;

FIG. 7 is a schematic view of the fan outlet;

FIG. 8 is a schematic structural diagram of a driving portion in the embodiment shown in FIG. 1;

FIG. 9 is a schematic structural diagram of a second embodiment of the fan;

FIG. 10 is a schematic structural diagram of a third embodiment of a fan;

FIG. 11 is a schematic structural diagram of a fourth embodiment of a fan;

FIG. 12 is a schematic structural diagram of a fifth embodiment of a fan;

FIG. 13 is a schematic structural diagram of a sixth embodiment of a fan;

FIG. 14 is a schematic structural view of the support assembly of the embodiment of FIG. 13;

FIG. 15 is a schematic structural diagram of a seventh embodiment of the fan;

FIG. 16 is a schematic structural view of a support member in the eighth embodiment;

FIG. 17 is a schematic view of a driving part in the ninth embodiment of the fan;

FIG. 18 is a schematic structural view of a stator in the embodiment of FIG. 17;

FIG. 19 is a schematic view showing the structure of a driving part in the tenth embodiment of the fan;

fig. 20 is a schematic structural view of the stator in the embodiment shown in fig. 19.

Detailed Description

The conception, specific structure and technical effects of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, so as to fully understand the objects, aspects and effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the description of the upper, lower, left, right, etc. used in the present invention is only relative to the mutual positional relationship of the components of the present invention in the drawings.

Furthermore, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any combination of one or more of the associated listed items.

First embodiment

Referring to fig. 1 to 8, the fan in the present embodiment includes a first air-out portion 10, a second air-out portion 20 and a driving portion 30, the first air-out portion 10 includes a first substrate 11, a plurality of first blades 12 are arranged on an edge of the first substrate 11, the second air-out portion 20 includes a second substrate 21, a plurality of second blades 22 are arranged on an edge of the second substrate 21, windward directions of the first blades 12 and the second blades 22 are opposite, and the first blades 12 and the second blades 22 are sequentially and alternately arranged along an axial direction of the first substrate 11 or the second substrate 21; the driving portion 30 includes a rotor 31 and a stator 32, the stator 32 includes a plurality of winding groups 321, a magnetic ring 311 is disposed on one side of the rotor 31 close to the stator 32, and the rotor 31 is connected to the first air-out portion 10 and/or the second air-out portion 20, so that the first air-out portion 10 and the second air-out portion 20 rotate relatively.

The winding set 321 in the driving portion 30 generates a magnetic field after being energized, the magnetic field interacts with the magnetic field generated by the magnetic ring 311 to estimate that the rotor 31 rotates, and the rotor 31 drives the first air outlet portion 10 and/or the second air outlet portion 20 to rotate in the rotating process. Because the first fan blades 12 and the second fan blades 22 are arranged in turn and the windward directions of the first fan blades 12 and the second fan blades 22 are opposite, when the first air outlet part 10 and the second air outlet part 20 rotate relatively, air entering the fan from the outside is pushed to the same direction step by the first fan blades 12 and the second fan blades 22, so that air forms air flow, the air flow speed is gradually increased along the flow direction, the air can rapidly enter from one side of the fan and is discharged from the other side of the fan after being added, the acceleration time of the air flow is short, the air outlet amount is large, the air speed is high, and the air outlet quality of the fan is optimized.

Preferably, the number of the first blades 12 mounted on the first substrate 11 is the same as the number of the second blades 22 mounted on the second substrate 21, and the first blades 12 and the second blades 22 correspond to each other along the axial direction of the first substrate 11 or the second substrate 21, and the first blades 12 and the second blades 22 can be rapidly engaged with the airflow pushed by the previous blade, so as to improve the pushing effect of the first blades 12 and the second blades 22 on the air. As shown in fig. 6, along the direction from left to right, the odd number positions are the first fan blades 12, the even number positions are the second fan blades 22, and the sum of the numbers of the first air outlet portion 10 and the second air outlet portion 20 is not less than two to ensure the air outlet effect of the fan.

Referring to fig. 8, in the present embodiment, the stator 32 and the rotor 31 of the driving portion 30 both adopt an annular structure, and the driving portion 30 is hollow inside, so that the structure of the driving portion 30 is light, the fan is lighter, and the air outlet efficiency of the fan is improved; the rotor 31 is arranged outside the stator 32 in a surrounding manner, the first base body 11 is internally provided with an installation cavity 112 for accommodating the driving part 30, and the rotor 31 is connected with the first base body 11 and drives the first base body 11 to rotate; the second air outlet portion 20 is in a driven state, and in the rotating process of the first substrate 11, the airflow generated by the rotation of the first fan blade 12 drives the second air outlet portion 20 to rotate, so that the first air outlet portion 10 and the second air outlet portion 20 rotate relatively.

The connection between the first air outlet portion 10 and the second air outlet portion 20 and the driving portion 30 is not limited to this, the driving portion 30 may take the form of an inner rotor 31 and an outer stator 32, the rotor 31 is connected with the second base 21 and drives the second air outlet portion 20 to rotate; or the outer stator 32 of the inner rotor 31 and the inner stator 32 of the outer rotor 31 are combined to form the two driving parts 30, the two driving parts 30 are respectively connected with the first air outlet part 10 and the second air outlet part 20, and the first air outlet part 10 and the second air outlet part 20 are driven to rotate relatively, so that the air speed and the air volume of the fan are further improved.

In this embodiment, the first substrate 11 and the second substrate 21 are both circular, the second substrate 21 surrounds the first substrate 11, the first fan blades 12 are distributed on the outer wall of the first substrate 11, the second fan blades 22 are distributed on the inner wall of the second substrate 21, the second fan blades 22 are inserted between the adjacent first fan blades 12, and the first fan blades 12 are inserted between the adjacent second fan blades 22. Air enters from the right side of the fan, is continuously pushed and accelerated by the first fan blade 12 and the second fan blade 22, and is exhausted from the left side of the fan.

Specifically, as shown in fig. 7, the first fan blades 12 and the second fan blades 22 are arranged at intervals, the windward directions of the first fan blades 12 in different rows are the same, the windward directions of the first fan blades 12 and the adjacent second fan blades 22 are opposite, in this embodiment, the first fan blades 12 are inclined downward, the lower surfaces of the first fan blades 12 are windward surfaces, the second fan blades 22 are inclined upward, and the upper surfaces of the second fan blades 22 are windward surfaces; assuming that the left side is an air inlet side and the right side is an air outlet side, the first fan blade 12 rotates anticlockwise along with the first base body 11, and the second fan blade 22 follows the second base body 21 to be in a driven state; after wind enters the fan from the left side, the lower surface of the first fan blade 12 in the first row pushes the air to the right to form airflow, the airflow pushes the lower surface of the second fan blade 22 in the second row to enable the second fan blade 22 to rotate clockwise, the upper surface of the second fan blade 22 continues to push the air to the right, and the lower surface of the first fan blade 12 in the third row continues to push the air to the right; the speed of the air entering the fan is gradually increased under the effect of gradually pushing the first fan blade 12 and the second fan blade 22 to the right, so that the acceleration of the air flow is realized, and the air outlet speed of the fan is increased. Preferably, the second fan blade 22 can also actively rotate clockwise, so as to further enhance the pushing strength of the fan on the air and increase the wind speed.

First base member 11 is including being no less than two first units 111, can dismantle the connection after the butt joint between two adjacent first units 111, and a plurality of first units 111 splice in proper order along first flabellum 12 and second flabellum 22's array orientation and form first base member 11, and the surface of each first unit 111 all is connected with first flabellum 12. Through segmenting first base member 11, reduce the installation degree of difficulty of first air-out portion 10 and second air-out portion 20 to and the processing cost of fan, adjacent first unit 111 accessible threaded fastener realizes connecting.

If the first base 11 includes not less than 3 first units 111, the first units 111 may be connected by a threaded fastener, or the first units 111 may be reasonably grouped, each group includes not less than two first units 111, and the first units 111 in each group are connected by a threaded fastener.

The fan further comprises a shell 40, and the first air outlet portion 10, the second air outlet portion 20 and the driving portion 30 are all arranged in the shell 40. The below of casing 40 still is equipped with base 50 to guarantee the holistic balance performance of fan, be connected with stand 60 between base 50 and the casing 40, stand 60 sets up to extending structure, with the air-out position of adjustment fan, improves the practicality of fan.

The housing 40 includes an inner ring 41 and an outer ring 42, the inner ring 41 and the outer ring 42 are both circular, an accommodating cavity 43 is disposed between the inner ring 41 and the outer ring 42, a driving part 30 is disposed in an installation cavity 112 inside the first base 11, and a rotor 31 of the driving part 30 is connected with the first base 11 and drives the first base 11 to rotate; the second base 21 is rotatably connected to the inner wall of the outer ring 42, so that when the first base 11 rotates, the second blades 22 rotate along with the first blades 12, and the first blades 12 and the second blades 22 rotate relatively. Preferably, a gap is formed between the outer side of the first base 11 and the inner wall of the outer ring 42 to allow air to pass therethrough and increase the amount of air discharged by the fan, and the second base 21 and the outer ring 42 may be coupled by a rail slider or a bearing.

Specifically, a plurality of first mounting blocks 113 are arranged along the inner wall of the first base 11, a plurality of first mounting holes 312 are formed in the end surface of the rotor 31 along the circumferential direction of the rotor 31, and the positions of the first mounting blocks 113 and the first mounting holes 312 are such that the first base 11 and the rotor 31 can be relatively fixed by inserting threaded fasteners into the first mounting blocks 113 and the first mounting holes 312, that is, the driving portion 30 and the first rotating portion can be relatively fixed. The stator 32 includes a mounting base 322 and a winding group 321 integrally connected to the mounting base 322, a plurality of second mounting blocks 411 are disposed on an outer wall of the inner ring 41 along a circumferential direction of the inner ring 41, a plurality of second mounting holes 323 are disposed on an end surface of the mounting base 322 along the circumferential direction of the stator 32, and a screw fastener is inserted into the second mounting blocks 411 and the second mounting holes 323, so that the mounting base 322 and the inner ring 41 can be fixedly connected, that is, the driving part 30 and the housing 40 are relatively fixed.

The casing 40 further includes a first end cap 44 (the first end cap 44 is hidden in fig. 4) and a second end cap 45, the first end cap 44 and the second end cap 45 are respectively disposed at two sides of the inner ring 41 and the outer ring 42, the first end cap 44 and the second end cap 45 are annular and cover between the outer ring 42 and the inner ring 41, the first fan blade 12 and the second fan blade 22 are completely accommodated in the casing 40, and the human body damage caused by touching the first fan blade 12 or the second fan blade 22 by misoperation is prevented. The first end cover 44 is provided with an air inlet 441, the second end cover 45 is provided with an air outlet 451, air enters from the air inlet 441 and is discharged from the air outlet 451, the air outlet 451 in the embodiment is arranged on the second end cover 45 in a ring shape, so that air flow can be concentrated at the ring shape to discharge air, and the air discharge effect of the fan is optimized.

Second embodiment

Referring to fig. 9, the difference between the present embodiment and the first embodiment is that the driving portion 30 in the present embodiment is configured as a rotating shaft, the rotating shaft is disposed in the mounting cavity 112 in a penetrating manner, and the rotating shaft drives the first substrate 11 to rotate in the rotating process. It can be seen that the inner diameter of the mounting cavity 112 in this embodiment is smaller than the inner diameter of the mounting cavity 112 in the first embodiment, so that the fan has a smaller and lighter structure, and the fan can meet different use requirements by adjusting the inner diameter of the mounting cavity 112 and selecting different driving parts 30, thereby increasing the application range of the fan.

Third embodiment

Referring to fig. 10, the difference between the present embodiment and the second embodiment is that the first air outlet portion 10 in the present embodiment includes three first blades 12, the first substrate 11 includes three first units 111, and the outer surface of each first unit 111 is connected to the first blade 12; the second air outlet portion 20 includes a second fan blade 22, so the second fan blades 22 are all connected to the same second substrate 21, and the first fan blades 12 and the second fan blades 22 are sequentially staggered. By increasing the number of rows of the first fan blade 12 and the second fan blade 22, the pushing strength of the first fan blade 12 and the second fan blade 22 to the air can be improved, and the air outlet strength of the fan can be further enhanced. The first fan blade 12 and the first unit 111 and the second fan blade 22 and the second base 21 can be integrally connected or detachably connected, so that the processing flexibility of the fan is improved.

Fourth embodiment

Referring to fig. 11, the present embodiment is different from the first embodiment in that the second substrate 21 includes at least two second units 211, two adjacent second units 211 are connected in a butt joint manner and are detachably connected, the plurality of first units 111 are sequentially connected along the arrangement direction of the first blades 12 and the second blades 22 to form the second substrate 21, and the inner surface of each second unit 211 is connected with the second blade 22. Through segmenting second base member 21, further reduce the installation degree of difficulty of air-out device. A plurality of second mounting blocks 212 may be disposed along the outer surface of the second base 21, second mounting holes are disposed on the second mounting blocks 212, and the connection manner between the second mounting blocks 212 is the same as the connection manner between the first mounting blocks 112.

Preferably, each first unit 111 can be connected with at least two rows of first blades 12, and each second unit 211 is connected with at least two rows of second blades 22, so as to improve the flexibility of processing and mounting the air outlet device.

Fifth embodiment

Referring to fig. 12, the difference between the present embodiment and the second embodiment is that the first substrate 11 and the second substrate 12 are both a splicing structure, the first substrate 11 is composed of three first units 111, each of the first units 111 is connected with a row of first blades 12, the second substrate 21 is composed of two first units 211, each of the second units 211 is connected with a row of second blades 22, and the first blades 12 and the second blades 22 are arranged alternately. Through all setting up first base member 11 and second base member 21 to the concatenation formula structure, further improve the convenience of air-out device processing and equipment, reduction in production cost.

Sixth embodiment

Referring to fig. 13 and 14, the driving portion 30 of the present embodiment is different from the first embodiment in that the supporting member 33 further includes a first connecting unit 331 and a second connecting unit 332, which are rotatably connected to each other, the first connecting unit 331 is fixed to the rotor 31, and the second connecting unit 332 is fixed to the housing 40, so that when the rotor 31 drives the first connecting unit 331 to rotate, the first connecting unit 331 and the second connecting unit 331 rotate relative to each other. Three supporting assemblies 33 are arranged along the circumferential direction of the rotor 31 in the embodiment, the three supporting assemblies 33 form a supporting plane, the stability of the supporting assemblies 33 for supporting the stator 32 and the rotation is improved, the specification size of the supporting assemblies 33 is small, and the processing cost is low.

A plurality of rolling bodies 333 are arranged between the first connecting unit 331 and the second connecting unit 332, and the rolling bodies 333 can roll along with the relative rotation between the first connecting unit 331 and the second connecting unit 332, so that rolling friction is formed between the first connecting unit 331 and the second connecting unit 332, and the power transmission efficiency between the first connecting unit 331 and the second connecting unit 332 is improved.

Seventh embodiment

Referring to fig. 15, the embodiment is different from the sixth embodiment in that the first connecting unit 331 and the second connecting unit 332 in the embodiment are both in a closed ring structure, the first connecting unit 331 is sleeved outside the second connecting unit 332, an outer wall of the first connecting unit 331 is attached to and relatively fixed to an inner wall of the rotor 31, an inner wall of the second connecting unit 332 is relatively fixed to the inner ring 41, contact areas between the first connecting unit 331 and the rotor 31 and between the second connecting unit 332 and the inner ring 41 are increased, and stability of the supporting assembly 33 for supporting the rotor 31 and the stator 32 and stability of the supporting assembly 33 in operation are improved.

Eighth embodiment

Referring to fig. 16, the present embodiment is different from the sixth and seventh embodiments in that two support assemblies 33 are provided along the axial direction of the stator 32 or the rotor 31 in order to improve the smoothness of the rotation of the rotor 31 and prevent the rotor 31 from rolling. The stator 32 is located at the center between the two support members 33, and the support members 33 further include a third connecting unit 334, and the third connecting unit 334 passes through the space between the first connecting unit 331 and the second connecting unit 332 and is connected with the stator 32, so that the stator 32 and the second connecting unit 332 are relatively fixed.

Ninth embodiment

Referring to fig. 17 and 18, the present embodiment is different from the sixth embodiment in that at least two stators 32 are distributed along the circumferential direction of the rotor 31, each stator 32 is in a sector shape, and each stator 32 is fixedly connected with the inner ring 41 of the housing 40 based on the mounting base 322 of the stator. Because the stator 32 is generally formed by stacking silicon steel sheets, the stator 32 can be processed based on the silicon steel sheets with small specifications by reducing the size of the stator 32, thereby reducing the generation of waste materials and lowering the production cost. The size of each stator 32, the number of the stators 32, and the number of the winding groups 321 included in each stator 32 can be selected reasonably according to actual use requirements, in this embodiment, three stators 32 are provided, and the stators 32 are uniformly distributed along the circumferential direction of the rotor 31.

Tenth embodiment

Referring to fig. 17 and 18, the present embodiment is different from the ninth embodiment in that the stator 32 in the present embodiment is disposed around the rotor 31, the magnetic ring 311 is disposed on the outer wall of the rotor 31, the mounting base 322 is located at the outer edge of the stator 32, and the winding group 321 is disposed on the inner wall of the mounting base 322 to form the rotor 31 structure in the outer stator 32. The rotor 31 is also in a closed loop shape, and the rotor 31 can transmit power to a structure installed inside the rotor during rotation, so that the diversity of power transmission of the driving part 30 is increased.

Eleventh embodiment

Referring to fig. 1 to 18, when the fan in the present embodiment includes only the first air outlet portion 10 or only the second air outlet portion 20, and only the first air outlet portion 10, the driving portion 30 shown in fig. 1 to 18 may be adopted, the first air outlet portion 10 is mounted on the rotor 31 outside the driving portion 30, and the stator 32 inside the driving portion 30 is fixed relative to the housing 40; when only the second air-out part 20 is included, the driving part 30 shown in fig. 19 and 20 can be adopted, the rotor 31 on the inner side of the driving part 30 is connected with the second air-out part 20 and drives the second air-out part 20 to rotate, the stator 32 shell 40 on the outer side of the driving part 30 is relatively fixed, and the flexibility of fan installation is improved on the premise of ensuring light weight and high-efficiency transmission of the fan.

Furthermore, the particular features, structural functions, or characteristics of the present invention may be combined in any suitable manner in one or more embodiments. For example, the first, second, and seventh embodiments may be combined as long as the particular features, structures, functions, or characteristics associated with the three embodiments are not mutually exclusive.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides a fan, its characterized in that includes first air-out portion, supporting part and drive division, first air-out portion includes first base member, a plurality of first flabellums are stretched out to the surface of first base member, the drive division includes rotor and stator, the stator with the inside cavity of rotor, the rotor with first base member is connected, so that first air-out portion rotates, the stator with the rotor all with the supporting part is connected.

2. The fan as claimed in claim 1, wherein the supporting portion is provided in plurality and distributed along a circumferential direction of the rotor.

3. The fan as claimed in claim 1, wherein the support portions are not less than two and are arranged in parallel along an axial direction of the rotor.

4. The fan as claimed in any one of claims 1 to 3, wherein the support portion includes a first connection unit and a second connection unit rotatably connected, the first connection unit being connected with the rotor, and the second connection unit being connected with the stator.

5. The fan as claimed in claim 3, wherein the support part includes a first connection unit and a second connection unit rotatably connected, the first connection unit being connected to the rotor, the second connection unit being connected to the stator, and a third connection unit passing between the first connection unit and the second connection unit and fixed relatively to the stator.

6. The fan as claimed in claim 1, wherein the rotor and the stator are in a closed loop shape.

7. The fan as claimed in claim 1, wherein the rotor is of a closed ring type, and not less than two stators are arranged in a circumferential direction of the rotor.

8. The fan as claimed in any one of claims 1 to 3, further comprising a fixing base connected with the supporting portion and the stator, wherein the fixing base is hollow.

9. The fan as claimed in claim 7, further comprising a fixing base including a fixing region and a mounting region, the fixing region being spaced apart from the mounting region, the stator being mounted to the mounting region, and the supporting portion being mounted to the fixing region.

10. The fan according to claim 1, further comprising a second air outlet portion, wherein the second air outlet portion comprises a second base body, the second base body is sleeved outside the first base body, a plurality of second fan blades extend out of the first base body along the surface of the second base body, the first fan blades extend towards the second base body, the windward side of the first fan blades faces opposite to the windward side of the second fan blades, and the first base body and/or the second base body are connected with the rotor so that the first air outlet portion and the second air outlet portion rotate relatively.

11. The fan as claimed in claim 10, wherein the first base includes a plurality of first units, adjacent to which the first fan blades are detachably coupled, each of the first units having the first fan blades coupled thereto; the second base body comprises a plurality of second units, the second units are adjacent and detachably connected, and each second unit is connected with the second fan blade.

12. The fan according to claim 10, wherein a plurality of rows of the first blades are arranged on the first base and/or a plurality of rows of the second blades are arranged on the second base; the first fan blades and the second fan blades are sequentially and alternately arranged in the axis direction of the first base body or the second base body.

13. The fan according to claim 1, further comprising a housing, wherein the housing includes an outer ring and an inner ring, a receiving cavity is formed between the outer ring and the inner ring, the first air outlet portion is disposed in the receiving cavity, and the first base is connected to the inner ring or the outer ring.

14. The fan as claimed in claim 13, wherein the housing further comprises a first end cap and a second end cap, the first end cap and the second end cap are covered between the inner ring and the outer ring, the first end cap is provided with an air inlet, and the second end cap is provided with an air outlet.