CN216131148U

CN216131148U - Fan and household appliance

Info

Publication number: CN216131148U
Application number: CN202121944854.7U
Authority: CN
Inventors: 李婧; 田志强; 顾明亮; 王伟
Original assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-03-25
Anticipated expiration: 2031-08-18

Abstract

The application relates to the technical field of household appliances, and discloses a fan and a household appliance. The fan includes: an impeller; the flow guide structure is positioned inside the impeller; the first driving device is positioned on one side of the impeller along the axial direction of the fan; the end cover is connected between the impeller and the first driving device, the first driving device drives the impeller to rotate through the end cover, and when the impeller rotates, the impeller and the flow guide structure do not interfere with each other. The impeller is connected with the first driving device through the end cover, the end cover is located on the outer side of the impeller, the first driving device can be connected with the impeller without extending into the impeller, when the first driving device drives the impeller to rotate through the end cover, the flow guide structure is arranged inside the impeller, mutual interference between the impeller and the flow guide structure is avoided, the impeller and the first driving device can be installed simultaneously through the end cover, and normal work of the fan cannot be influenced. The application also discloses a household appliance.

Description

Fan and household appliance

Technical Field

The present application relates to the technical field of household appliances, and for example, relates to a fan and a household appliance.

Background

At present, a fan in the prior art is provided with a flow guide structure and a driving device, wherein the flow guide structure can change the air outlet direction of the fan, and the driving device can drive an impeller of the fan to rotate.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the connection position of the guide structure and the driving device of the existing fan is easy to conflict, so that the simultaneous installation of the guide structure and the driving device is difficult to realize, and the normal use of the fan is influenced.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a fan and a household appliance, which aim to solve the problem that the connection position of a diversion structure and a driving device of the existing fan is easy to conflict with each other, so that the simultaneous installation of the diversion structure and the driving device is difficult to realize, and the normal use of the fan is influenced.

The disclosed embodiment provides a fan, the fan includes: an impeller; the flow guide structure is positioned in the impeller and comprises a body and a first connecting shaft, the body is positioned in the impeller, and the first connecting shaft is connected with one end of the body; a first driving device located on one side of the impeller in an axial direction of the fan; the end cover is connected between the impeller and the first driving device, when the first driving device drives the end cover to rotate, the end cover can drive the impeller to rotate, and when the end cover drives the impeller to rotate, the impeller and the flow guide structure do not interfere with each other.

Optionally, one end of the end cover is provided with an avoiding hole, the first connecting shaft can extend into the avoiding hole, and when the end cover rotates, the first connecting shaft and the hole wall of the avoiding hole do not interfere with each other.

Optionally, the impeller comprises: the hub is positioned at the end part of the impeller along the axial direction of the fan and is connected with one end of the end cover, wherein the hub is provided with a connecting part, and one end of the end cover is also provided with a connecting matching part matched with the connecting part; wherein, connect cooperation portion with dodge the hole and be in the one end interval of end cover sets up.

Optionally, the hub is further provided with a through hole, the through hole is communicated with the avoiding hole, wherein the inner diameter of the through hole is larger than or equal to the outer diameter of the flow guide structure, so that the flow guide structure can be taken out from the inside of the impeller through the through hole.

Optionally, the connecting portion is detachably connected with the connection matching portion.

Optionally, the other end of the end cap is detachably connected to the first driving device.

Optionally, the first drive means comprises an output shaft; the other end of the end cover is provided with a mounting hole, the output shaft is positioned in the mounting hole, and the hole wall of the mounting hole is connected with the output shaft through a fastening piece.

Optionally, the end cap comprises: the first side wall is positioned at one end of the end cover and is connected with the impeller; the second side wall is positioned at the other end of the end cover, is connected with the first driving device and is arranged opposite to the first side wall at intervals; a third sidewall connected between the first sidewall and the second sidewall; the first side wall, the second side wall and the third side wall jointly define an accommodating space, and the mounting hole is communicated with the accommodating space.

Optionally, the flow guide structure further comprises a second connecting shaft, and the second connecting shaft is connected to the other end of the body; the fan further includes: the second driving device is positioned on the other side of the impeller along the axial direction of the fan; the shaft coupling is connected between the second connecting shaft and the second driving device, wherein the second connecting shaft is provided with a limiting part, one end of the shaft coupling is provided with a limiting matching part, and when the limiting part is matched with the limiting matching part, the flow guide structure is limited to rotate between the shaft couplings.

The embodiment of the present disclosure also provides a household appliance including the fan as described in any one of the above embodiments.

The fan and the household appliance provided by the embodiment of the disclosure can realize the following technical effects:

when the first driving device works, the first driving device drives the end cover to rotate, the end cover drives the impeller to rotate, air outlet of the fan is achieved, the end cover is convenient for installation of the first driving device, due to the fact that the impeller and the flow guide structure do not interfere with each other, conflict does not occur between installation of the flow guide structure and installation of the first driving device, installation of the flow guide structure and the first driving device can be achieved through the end cover, and normal work of the fan cannot be affected.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

FIG. 1 is a schematic view of a fan according to an embodiment of the present disclosure;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged schematic view of section C of FIG. 2;

FIG. 4 is a partial schematic structural view of another perspective of a fan provided by embodiments of the present disclosure;

FIG. 5 is a structural schematic diagram of a perspective of an end cap provided by embodiments of the present disclosure;

FIG. 6 is a schematic structural view of another perspective of an end cap provided by embodiments of the present disclosure;

FIG. 7 is a schematic view of a mating structure of an end cap and a first driving device according to an embodiment of the disclosure;

FIG. 8 is a schematic view of a fan according to an embodiment of the present disclosure;

FIG. 9 is a schematic view of a portion of a fan at a further viewing angle according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of another fan provided in the embodiments of the present disclosure;

FIG. 11 is a schematic view of another fan guide structure taken out according to an embodiment of the present disclosure;

FIG. 12 is a schematic view of a structure of a rocker and a connecting shaft of a fan according to another embodiment of the present disclosure;

fig. 13 is a schematic view illustrating a structure of a turntable and a connecting shaft of a fan according to another embodiment of the present disclosure;

fig. 14 is a schematic view of a matching structure of a cover plate and a turntable in still another fan according to an embodiment of the disclosure.

Reference numerals:

10. an impeller; 101. a hub; 1011. a through hole; 1012. a connecting portion; 1013. a first screw hole; 20. a first driving device; 201. an output shaft; 30. an end cap; 301. a connection fitting portion; 3011. a second screw hole; 3012. a first bore section; 3013. a second bore section; 302. mounting holes; 303. a first side wall; 304. a second side wall; 305. a third side wall; 306. an accommodating space; 307. a first avoidance hole; 3071. a bearing; 308. a second avoidance hole; 40. a flow guide structure; 401. a first connecting shaft; 402. a second connecting shaft; 4021. a limiting part; 50. a second driving device; 60. a coupling; 70. a rocker; 701. one end of the rocker; 702. the other end of the rocker; 80. a turntable; 801. a limiting block; 90. a cover plate; 901. a limiting groove.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

With reference to fig. 1 to 11, the embodiment of the present disclosure provides a fan, where the fan includes an impeller 10, a first driving device 20, and an end cover 30, the first driving device 20 is located on one side of the impeller 10 along an axial direction of the fan, the end cover 30 is connected between the impeller 10 and the first driving device 20, the first driving device 20 can drive the impeller 10 to rotate through the end cover 30, the fan further includes a flow guide structure 40, the flow guide structure 40 is located inside the impeller 10, and when the impeller 10 rotates, the impeller 10 and the flow guide structure 40 do not interfere with each other.

First drive arrangement 20 drive end cover 30 rotates, and end cover 30 drives impeller 10 and rotates for the fan can normally be air-out, and when impeller 10 rotated, impeller 10 and water conservancy diversion structure 40 mutually noninterfere all can be installed on the fan with first drive arrangement 20 to water conservancy diversion structure 40, can not take place the conflict.

The flow guiding structure 40 includes a body and a first connecting shaft 401, the body is located inside the impeller 10, and the first connecting shaft 401 is connected with one end of the body.

It can be understood that: the flow guide structure 40 is not in contact with the end cover 30, and when the end cover 30 rotates, the flow guide structure 401 is not driven to rotate, so that mutual noninterference between the impeller 10 and the flow guide structure 40 can be realized.

Optionally, the first connecting shaft 401 is not in contact with the end cap 30.

Optionally, the end cover 30 is located outside the impeller 10.

The flow guide structure 40 is located inside the impeller 10, and the end cover 30 is located outside the impeller 10, so that the impeller 10 and the first driving device 20 are connected outside the impeller 10, and the impeller 10 does not interfere with the flow guide structure 40 when rotating, so that the flow guide structure 40 and the first driving device 20 can be installed on the impeller 10 at the same time, and the fan can work normally.

The first driving device 20 is connected to the impeller 10 through the end cover 30 such that a force transmission place between the impeller 10 and the first driving device 20 is in surface-to-surface contact, thereby allowing the fan to stably operate and reducing noise.

Alternatively, the impeller 10, the end cover 30 and the first driving device 20 are arranged in sequence along the axial direction of the fan.

As shown in fig. 1 and 2, the impeller 10, the end cover 30 and the first driving device 20 are sequentially arranged along the axial direction of the fan, the end cover 30 is connected between the impeller 10 and the first driving device 20, so that the first driving device 20 is not directly connected with the fan, the first driving device 20 is connected with the impeller 10 through the end cover 30, and the first driving device 20 is connected with the impeller 10 outside the impeller 10.

Alternatively, the fan may be a cross-flow fan or an axial fan.

Alternatively, the first driving device 20 may be a motor, a stepping motor, a motor, or the like.

Alternatively, as shown in fig. 2 and 3, the impeller 10 includes a hub 101, the hub 101 is located at an end of the impeller 10 in the axial direction of the fan, and the hub 101 is connected to one end of the end cover 30, wherein the hub 101 is provided with a connecting portion 1012, and one end of the end cover 30 is provided with a connecting fitting portion 301 fitted to the connecting portion 1012.

When the connecting part 1012 is matched with the connecting matching part 301, one end of the impeller 10 is connected with one end of the end cover 30, the end cover 30 is connected with the hub 101, the area of the hub 101 is large, enough space can be provided to be connected with the end cover 30, and the connection between the end cover 30 and the hub 101 is more stable.

Optionally, the outer dimension of the end cover 30 is smaller than or equal to the outer dimension of the impeller 10, so that the end cover 30 does not occupy too much space of the air conditioner, and the structural compactness of the fan is increased.

Optionally, the flow guiding structure 40 extends in the axial direction of the fan.

The guide structure 40 divides the inside of the impeller 10 into a plurality of air channels, so that the air flow can flow along the air channels after entering the inside of the impeller 10 and finally flows out of the impeller 10, thereby realizing the guide of the air flow and reducing the wind resistance and noise of air supply.

Optionally, an avoiding hole (for convenience of distinction, hereinafter, collectively referred to as a first avoiding hole 307) is formed at one end of the end cover 30, the first connecting shaft 401 can extend into the first avoiding hole 307, and when the end cover 30 rotates, the hole walls of the first connecting shaft 401 and the first avoiding hole 307 do not interfere with each other.

When the end cover 30 rotates, the first avoiding hole 307 rotates, and the first connecting shaft 401 is located in the first avoiding hole 307 and does not interfere with the hole wall of the first avoiding hole 307, so that the first connecting shaft 401 does not rotate along with the rotation of the first avoiding hole 307, and further, the rotation of the impeller 10 and the flow guiding structure 40 do not interfere with each other.

Optionally, a first bearing 3071 is disposed between the first connecting shaft 401 and the first avoiding hole 307, and the first bearing 3071 plays a role of supporting the first connecting shaft 401, and meanwhile, the first avoiding hole 307 can stably rotate, so that friction between the first connecting shaft 401 and the first avoiding hole 307 is reduced.

Optionally, the first avoiding hole 307 and the connection fitting 301 are disposed at an end of the end cap 30 at a distance.

The first avoiding hole 307 and the connection matching portion 301 are arranged at one end of the end cover 30 at an interval, so that the connection position of the flow guide structure 40 and the hub 101 does not conflict with the connection position of the end cover 30 and the hub 101, the connection stability of the flow guide structure 40 is ensured, and the connection between the impeller 10 and the first driving device 20 is also ensured.

Optionally, the hub 101 is further provided with a through hole 1011, and the through hole 1011 is communicated with the first avoiding hole 307.

When first connecting shaft 401 stretches out to the impeller 10 outside through-hole 1011, end cover 30 is equipped with first hole 307 of dodging, and first connecting shaft 401 can continue to stretch into first hole 307 of dodging, and then makes the accommodation space 306 of water conservancy diversion structure 40 more nimble, reduces the assembly degree of difficulty of water conservancy diversion structure 40, and the length that first connecting shaft 401 stretches out is longer moreover for water conservancy diversion structure 40's connection is more stable.

Alternatively, the through hole 1011 penetrates the hub 101 in the axial direction of the fan.

It can be understood that: the first connecting shaft 401 may extend from the hub 101, or may be flush with the hub 101, and when the first connecting shaft 401 is flush with the hub 101, the first connecting shaft 401 does not interfere with the hole wall of the through hole 1011.

When the first connecting shaft 401 does not extend out of the impeller 10, the first connecting shaft 401 is located in the through hole 1011, the first driving device 20 drives the impeller 10 to rotate through the end cover 30, the through hole 1011 rotates along with the first connecting shaft, and the hole walls of the first connecting shaft 401 and the through hole 1011 do not interfere with each other, so that the flow guiding structure 40 cannot rotate along with the rotation of the impeller 10.

Optionally, the first connecting shafts 401 are all located on the axis of the flow guiding structure 40, so that the flow guiding structure 40 rotates on the same circumferential track, the space range required by the flow guiding structure 40 is reduced, and the structure of the fan is more compact.

Alternatively, the through hole 1011 is disposed coaxially with the hub 101, which can be understood as: the center of the circle on which the through hole 1011 is located coincides with the center of the circle on which the hub 101 is located.

Hub 101 and through-hole 1011 are coaxial for first connecting shaft 401 connects when through-hole 1011, and water conservancy diversion structure 40's external diameter can be great, and then makes water conservancy diversion structure 40's size can be more nimble.

Alternatively, the through holes 1011 and the connecting portions 1012 are provided at intervals on the hub 101 in the radial direction of the hub 101.

In one embodiment, as shown in fig. 10 and 11, the inner diameter of the through hole 1011 is greater than or equal to the outer diameter of the flow guide structure 40, so that the flow guide structure 40 can be taken out from the inside of the impeller 10 through the through hole 1011.

When the inner diameter of the through hole 1011 is greater than or equal to the outer diameter of the flow guide structure 40, the flow guide structure 40 can be conveniently taken out from the impeller 10, and the flow guide structure 40 can be conveniently detached and installed.

Optionally, the first connecting shaft 401 is provided with a first bearing 3071, and the first connecting shaft 401 and the first avoiding hole 307 are connected through the first bearing 3071, so that the rotation of the flow guiding structure 40 and the rotation of the end cover 30 are independent of each other and do not interfere with each other.

Optionally, the first connecting shaft 401 and the first avoiding hole 307 are in clearance fit, so that when the first connecting shaft 401 rotates in the first avoiding hole 307, the first avoiding hole 307 does not interfere with the flow guiding structure 40, and the flow guiding structure 40 can smoothly rotate.

In another embodiment, the inner diameter of the through hole 1011 is smaller than the outer diameter of the flow guiding structure 40, and the through hole 1011 can also support the first connecting shaft 401, so that the flow guiding structure 40 can be stably placed inside the impeller 10.

Optionally, the first connecting shaft 401 is provided with a second bearing, and the first connecting shaft 401 is connected to the through hole 1011 through the second bearing, so that the rotation of the diversion structure 40 is independent from the rotation of the hub 101 without interfering with each other.

Optionally, the first connecting shaft 401 and the through hole 1011 are in clearance fit, so that when the first connecting shaft 401 rotates through the through hole 1011, the through hole 1011 does not interfere with the flow guiding structure 40, and the flow guiding structure 40 can smoothly rotate.

Alternatively, as shown in fig. 4, the number of the connecting portions 1012 is plural, and the plurality of connecting portions 1012 are sequentially arranged at intervals in the circumferential direction of the hub 101.

A plurality of connecting portion 1012 make the end cover 30 more stable with being connected of wheel hub 101, a plurality of connecting portion 1012 set gradually along wheel hub 101's circumference, when making impeller 10 rotate, end cover 30 all atress in circumference, and then when increasing impeller 10 and rotating, wheel hub 101 is in circumference with end cover 30's stability of being connected, the face and the face contact transmission of the power that makes between first drive arrangement 20 and the impeller 10 are more even, thereby make the fan steady operation, the noise reduction.

Alternatively, the plurality of connecting portions 1012 are uniformly arranged on the hub 101 in sequence in the circumferential direction around the center of the through hole 1011.

Optionally, the plurality of connecting portions 1012 are sequentially and uniformly arranged along the circumferential direction of the hub 101, so that when the impeller 10 rotates, the hub 101 and the connecting portions 1012 and the connecting matching portion 301 of the end cover 30 are uniformly stressed, and the impeller 10 can stably rotate without deviation.

In one embodiment, the end cap 30 is removably attached to the impeller 10, which can be understood as: one end of the end cap 30 is removably connected to one end of the hub 101, which can also be understood as: the connection portion 1012 is detachably connected to the connection fitting portion 301.

The end cover 30 is detachably connected with the impeller 10, so that the end cover 30 can be conveniently installed and detached, when the flow guide structure 40 needs to be detached, the connecting part 1012 and the connecting matching part 301 are detached, one end of the end cover 30 is separated from one end of the hub 101, and then the flow guide structure 40 can be taken out from the impeller 10 through the through hole 1011, so that the flow guide structure 40 can be conveniently detached and installed.

Optionally, the connecting portion 1012 and the connection fitting portion 301 are snap-fit connection or screw connection.

When the connecting portion 1012 and the connecting mating portion 301 are connected by screws, the connecting portion 1012 includes a first screw hole 1013, the connecting mating portion 301 includes a second screw hole 3011, and when the screws pass through the first screw hole 1013 and the second screw hole 3011, the end cap 30 is connected to the hub 101.

Alternatively, as shown in fig. 5 and 6, the second screw hole 3011 extends through the end cap 30 along the axial direction of the fan, the second screw hole 3011 includes a first hole section 3012 and a second hole section 3013 which are communicated with each other, the first hole section 3012 is adapted to the first screw hole 1013, the second hole section 3013 and the first hole section 3012 are arranged along the direction from the first driving device 20 to the impeller 10, wherein the diameter of the second hole section 3013 is larger than that of the first hole section 3012.

The diameter of second hole section 3013 is greater than the diameter of first hole section 3012, and first hole section 3012 and first screw 1013 looks adaptation can reduce the length of screw, reduces the requirement to the screw size, can select screw connection end cover 30 and wheel hub 101 more in a flexible way, and especially, when the thickness of end cover 30 is thicker, the installation and the dismantlement of screw are convenient for in first hole section 3012 and the setting of second hole section 3013, and wherein, the diameter of second hole section 3013 is great, also is convenient for instrument installation or dismantlement screw.

In another embodiment, the end cap 30 and the impeller 10 may be fixedly connected, for example, ultrasonic welding may be used to connect the end cap 30 and the impeller 10.

Alternatively, the hub 101 and one end of the end cap 30 may be fixedly connected.

The hub 10 is fixedly connected with one end of the end cover 30, the end cover 30 is more stably connected with the impeller 10, and ultrasonic welding can be adopted at multiple positions between the hub 101 and the end cover 30, so that the end cover 30 and the impeller 10 cannot be separated in the rotating process.

Optionally, the other end of the end cap 30 is detachably connected to the first driving device 20.

The other end of the end cap 30 is detachably connected to the first driving device 20, so that the first driving device 20 can be easily repaired and replaced.

Optionally, the first drive means 20 comprises an output shaft 201; the end cover 30 is provided with a mounting hole 302, and the output shaft 201 is positioned in the mounting hole 302; the wall of the mounting hole 302 is connected to the output shaft 201 by a fastener.

The output shaft 201 of the first driving device 20 is inserted into the mounting hole 302 and connected with the mounting hole by a fastener, so that when the output shaft 201 of the first driving device 20 rotates, the end cover 30 can be driven to rotate, and the end cover 30 drives the impeller 10 to rotate.

Optionally, the center of the mounting hole 302 is aligned with the center of the through hole 1011 along the axial direction of the fan.

It can be understood that: the mounting hole 302 and the through hole 1011 are coaxial, when the first driving device 20 works, the output shaft 201 of the first driving device 20 rotates around the center of the mounting hole 302, and then the end cover 30 and the impeller 10 are driven to rotate around the center of the mounting hole 302, the center of the through hole 1011 and the center of the mounting hole 302 are coaxial, when the impeller 10 rotates, the first connecting shaft 401 is located in the through hole 1011 and/or the first avoiding hole 307, and therefore the influence of rotation of the impeller 10 cannot be caused, the movement cannot occur, and the rotation of the impeller 10 cannot be interfered.

Optionally, the through hole 1011 and the first avoiding hole 307 both correspond to the mounting hole 302, and it can be understood that: along the axial direction of the fan, the center of the through hole 1011, the center of the first avoiding hole 307 and the center of the mounting hole 302 are on the same straight line.

Alternatively, as shown in fig. 5 and 6, the end cover 30 includes a first side wall 303, a second side wall 304, and a third side wall 305, the first side wall 303 is located at one end of the end cover 30 and is connected to the impeller 10; the second side wall 304 is positioned at the other end of the end cover 30 and connected with the first driving device 20, and the first side wall 303 is arranged opposite to and spaced from the first side wall 303; the third side wall 305 is connected between the first side wall 303 and the second side wall 304.

The first side wall 303 and the second side wall 304 are spaced apart from each other, so that a sufficient distance exists between the first driving device 20 and the impeller 10, and further, the first driving device 20 and the impeller 10 do not contact with each other and interfere with the operation of the first driving device 20 and the impeller 10, and the third side wall 305 is connected between the first side wall 303 and the second side wall 304, so that the stability of the end cover 30 is increased.

Optionally, the output shaft 201 of the first driving device 20 is detachably connected to the first side wall 303.

Alternatively, the connection fitting portion 301 is disposed on a surface of the second sidewall 304 facing the impeller 10, and the first avoiding hole 307 is disposed on the second sidewall 304.

Optionally, the first sidewall 303 is circular, the second sidewall 304 is circular, the first sidewall 303 and the second sidewall 304 have the same shape and size, the first sidewall 303 and the second sidewall 304 are arranged in parallel, and the third sidewall 305 is annular.

In one embodiment, the wall of the mounting hole 302 protrudes toward the first driving device 20, the wall of the mounting hole 302 is provided with a third screw hole, the output shaft 201 is provided with a fourth screw hole, and the first driving device 20 is connected to the end cap 30 when the first fastening member passes through the third screw hole and the fourth screw hole, wherein the fastening member includes the first fastening member.

The hole wall of the mounting hole 302 protrudes towards the first driving device 20, and a third screw hole is formed in the hole wall of the mounting hole 302, so that the third screw hole is located between the end cover 30 and the first driving device 20, which is convenient for mounting or taking out the first fastener, and is also convenient for connecting the first driving device 20 and the end cover 30.

Alternatively, the hole wall of the mounting hole 302 protrudes in the axial direction of the fan toward the first driving device 20.

Optionally, the center of the circle of the mounting hole 302 coincides with the center of the circle of the end cover 30, so that the first driving device 20 can drive the end cover 30 to rotate at a constant speed, and the end cover 30 drives the impeller 10 to rotate at a constant speed.

Optionally, the first driving device 20 includes a body of the first driving device 20 and an output shaft 201, and when the output shaft 201 is connected to the end cover 30, a gap exists between the body of the first driving device 20 and the end cover 30, so as to facilitate installation or removal of the first fastening member.

Optionally, mounting holes 302 are provided in the first side wall 303.

Alternatively, the first side wall 303, the second side wall 304 and the third side wall 305 together define a receiving space 306, the mounting hole 302 is provided in the first side wall 303, the mounting hole 302 is communicated with the receiving space 306, the first driving device 20 includes the output shaft 201, and the output shaft 201 is located in the mounting hole 302.

The output shaft 201 of the first driving device 20 is located in the mounting hole 302, which facilitates the connection between the first driving device 20 and the end cover 30, the mounting hole 302 is communicated with the accommodating space 306, and the output shaft 201 of the first driving device 20 can extend into the accommodating space 306 after passing through the mounting hole 302, which facilitates the flexible arrangement of the first driving device 20, wherein the mounting hole 302 penetrates through the first side wall 303; in addition, the receiving space 306 can reduce the weight of the end cap 30, thereby reducing the weight of the entire fan.

Optionally, the first avoiding hole 307 is disposed on the second sidewall 304, and the first avoiding hole 307 is communicated with the accommodating space 306, so that the first connecting shaft 401 can continue to extend into the accommodating space 306 after extending out of the first avoiding hole 307, thereby further increasing the installation flexibility of the flow guiding structure 40.

In another embodiment, the wall of the mounting hole 302 protrudes toward the accommodating space 306, the wall of the mounting hole 302 is provided with a fifth screw hole, the output shaft 201 is provided with a sixth screw hole, and a second fastening member passes through the fifth screw hole and the sixth screw hole to connect the first driving device 20 and the end cover 30, wherein the fastening member includes the second fastening member.

The hole wall of the mounting hole 302 protrudes toward the accommodating space 306, and the fifth screw hole is located in the accommodating space 306, which can be understood as: the output shaft 201 of the first driving device 20 is connected with the hole wall of the mounting hole 302 in the accommodating space 306, so that the second fastener, the fifth screw hole and the sixth screw hole can not be exposed outside, rusting is avoided, and the mounting and dismounting of the second fastener are affected.

As shown in fig. 7, the third sidewall 305 is provided with a second avoiding hole 308, the second avoiding hole 308 is communicated with the accommodating space 306, and the second avoiding hole 308 corresponds to the fifth screw hole and the sixth screw hole, so that a tool can pass through or take out the second fastener through the second avoiding hole 308.

The output shaft 201 of the first driving device 20 and the end cap 30 are connected inside the accommodating space 306, and the second avoiding hole 308 facilitates the installation or removal of the second fastener by using a tool.

Optionally, the diameter of the second relief hole 308 is greater than the diameter of the second fastener.

Optionally, the impeller 10 further includes a blade assembly including a plurality of blades, the blades are spaced apart from each other by taking the axis of the fan as the center, and the hub 101 is disposed on the blade assembly and connected to the plurality of blades.

Alternatively, the flow guiding structure 40 is rotatably disposed in the impeller 10, and the flow guiding structure 40 can rotate, so that the outflow direction of the airflow entering the fan can be adjusted by rotating. In practical application, the air outlet direction of the household appliance can be adjusted by adjusting the rotation angle of the flow guide structure 40.

In one embodiment, as shown in fig. 8, the flow guiding structure 40 further includes a second connecting shaft 402, the second connecting shaft 402 is connected to the other end of the body; the fan further comprises a second drive means 50 and a coupling 60; the second driving device 50 is located on the other side of the impeller 10 along the axial direction of the fan, and the coupling 60 is connected between the second connecting shaft 402 and the second driving device 50, wherein the second connecting shaft 402 is provided with a limiting portion 4021, one end of the coupling 60 is provided with a limiting matching portion, and when the limiting portion 4021 is matched with the limiting matching portion, the flow guide structure 40 is limited from rotating with the coupling 60.

The second driving device 50 drives the second connecting shaft 402 to rotate through the coupler 60, the second connecting shaft 402 drives the flow guide structure 40 to rotate, and further rotation of the flow guide structure 40 is achieved, so that the flow guide structure 40 can change the air outlet direction of the impeller 10, the second driving device 50 is located on the other side of the impeller 10 along the axis direction of the fan and cannot conflict with the position of the first driving device 20, installation of various components is facilitated, the limiting portion 4021 and the limiting matching portion can limit circumferential rotation between the coupler 60 and the second connecting shaft 402, slipping between the coupler 60 and the coupler 60 is avoided, it is guaranteed that the coupler 60 and the second connecting shaft 402 can integrally rotate, and the driving effect of the second driving device 50 on the flow guide structure 40 is improved.

For example, the second connecting shaft 402 has a flat opening, a square opening, etc., and correspondingly, the coupling 60 has a slot corresponding to the flat opening or the square opening, so that the second connecting shaft 402 and the coupling 60 can rotate integrally.

As shown in fig. 8 and 9, the second connecting shaft 402 is connected to the second driving device 50 through the coupling 60 to drive the flow guiding structure 40 to rotate inside the impeller 10, and alternatively, the second driving device 50 may be an electric motor, a stepping motor, a motor, or the like.

In another embodiment, as shown in fig. 12 to 14, the fan further includes a rocker 70, one end 701 of the rocker is connected to the second connecting shaft 402, and when one end 702 of the rocker is forced to rotate, the rocker 70 can drive the airflow guiding structure 40 to rotate.

When the second connecting shaft 402 is forced to rotate, the rocker 70 rotates, the rocker 70 drives the flow guide structure 40 connected with one end 702 of the rocker to rotate, the rocker 70 drives the flow guide structure 40 to rotate, and the flow guide structure 20 rotates inside the impeller 10.

Alternatively, the rocker 70 is located outside of the impeller 10, and may be located inside of the impeller 10.

Alternatively, the rocking bar 70 is located outside the impeller 10 when the second connecting shaft 402 is protruded to the outside of the impeller 10.

Optionally, one end 702 of the rocker is not on the axis of the flow directing structure 20.

It can be understood that the extending direction of the rocker 70 is different from the extending direction of the second connecting shaft 402, if the one end 702 of the rocker is on the same straight line with the axis of the flow guiding structure 40, when the user applies force to the one end 702 of the rocker, the force applying arm is smaller or zero, and the force to be applied is larger. Meanwhile, the rotation of the flow guide structure 40 is controlled by operating one end 702 of the rocker, so that the accuracy of the rotation control of the flow guide structure 40 is improved, and the flow guide structure 40 can rotate to a specific angle more accurately.

Optionally, the fan further includes a turntable 80 and a cover plate 90, the turntable 80 is connected to the second connecting shaft 402, the diversion structure 40 can drive the turntable 80 to rotate when rotating, wherein the turntable 80 is provided with a limiting block 801; the cover plate 90 is arranged on one side of the turntable 80, and the cover plate 90 is provided with a limiting groove 901; when the diversion structure 40 rotates, the limiting block 801 can slide in the limiting groove 901 to limit the rotation range of the diversion structure 40.

Stopper 801 slides in spacing groove 901 for carousel 80 is restricted for apron 90's rotation, and carousel 80 can only rotate relatively at certain within range with apron 90, and then makes water conservancy diversion structure 40 restrict at certain within range internal rotation, sets up like this, is convenient for control water conservancy diversion structure 40's turned angle, makes the angle that the user that water conservancy diversion structure 40 can rotate needs or the angle of settlement, avoids water conservancy diversion structure 40 turned angle excessive or turned angle not enough.

Optionally, the turntable 80 is sleeved on and connected to the outer side of the second connecting shaft 402, and when the second connecting shaft 402 rotates, the turntable 80 also rotates along with the second connecting shaft 402.

Alternatively, the cover plate 90 is fixedly disposed with respect to the turntable 80, which can be understood as: when the turntable 80 can rotate along with the second connecting shaft 402, the cover plate 90 cannot rotate, and the position of the cover plate 90 is relatively fixed, so that the limiting groove 901 of the cover plate 90 can limit the limiting block 801 of the turntable 80.

The embodiment of the present disclosure also provides a household appliance including the fan in any one of the above embodiments.

The household appliance provided by the embodiment of the present disclosure includes the fan in any one of the above embodiments, so that all the beneficial effects of the fan in any one of the above embodiments are achieved, and details are not described herein.

Optionally, the household appliance may be an air conditioner, an oven, a dryer, a range hood, an air purifier, or other household appliances with an air outlet function, which is not specifically limited herein.

When the household appliance is an air conditioner, the air conditioner may be a wall-mounted air conditioner, an air duct type air conditioner, a cabinet type air conditioner, a ceiling type air conditioner, a central air conditioner, or the like, and is not limited specifically herein.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A fan, comprising:

an impeller;

the flow guide structure is positioned in the impeller and comprises a body and a first connecting shaft, the body is positioned in the impeller, and the first connecting shaft is connected with one end of the body;

a first driving device located on one side of the impeller in an axial direction of the fan;

the end cover is connected between the impeller and the first driving device, and when the first driving device drives the end cover to rotate, the end cover can drive the impeller to rotate;

when the end cover drives the impeller to rotate, the impeller and the flow guide structure are not interfered with each other.

2. The fan as claimed in claim 1,

the one end of end cover is equipped with dodges the hole, first connecting shaft can extend dodge downtheholely, when the end cover rotates, first connecting shaft with dodge the pore wall mutually noninterfere in hole.

3. The fan as claimed in claim 2, wherein the impeller comprises:

the hub is positioned at the end part of the impeller along the axial direction of the fan and is connected with one end of the end cover, wherein the hub is provided with a connecting part, and one end of the end cover is also provided with a connecting matching part matched with the connecting part;

wherein, connect cooperation portion with dodge the hole and be in the one end interval of end cover sets up.

4. The fan as claimed in claim 3,

the hub is further provided with a through hole, the through hole is communicated with the avoiding hole, wherein the inner diameter of the through hole is larger than or equal to the outer diameter of the flow guide structure, so that the flow guide structure can be taken out from the interior of the impeller through the through hole.

5. The fan as claimed in claim 3,

the connecting part is detachably connected with the connecting matching part.

6. The fan as claimed in claim 1,

the other end of the end cover is detachably connected with the first driving device.

7. The fan as claimed in claim 6,

the first drive means comprises an output shaft;

the other end of the end cover is provided with a mounting hole, the output shaft is positioned in the mounting hole, and the hole wall of the mounting hole is connected with the output shaft through a fastening piece.

8. The fan as claimed in claim 7, wherein the end cap comprises:

the first side wall is positioned at one end of the end cover and is connected with the impeller;

the second side wall is positioned at the other end of the end cover, is connected with the first driving device and is arranged opposite to the first side wall at intervals;

a third sidewall connected between the first sidewall and the second sidewall;

the first side wall, the second side wall and the third side wall jointly define an accommodating space, and the mounting hole is communicated with the accommodating space.

9. The fan according to any one of claims 1 to 8,

the flow guide structure further comprises a second connecting shaft, and the second connecting shaft is connected to the other end of the body;

the fan further includes:

the second driving device is positioned on the other side of the impeller along the axial direction of the fan;

the shaft coupling is connected between the second connecting shaft and the second driving device, wherein the second connecting shaft is provided with a limiting part, one end of the shaft coupling is provided with a limiting matching part, and when the limiting part is matched with the limiting matching part, the flow guide structure is limited to rotate between the shaft couplings.

10. A household appliance, characterized in that it comprises a fan according to any one of claims 1 to 9.