CN219012933U - Air supply device - Google Patents

Abstract

The application relates to an air supply device, including wind channel structure, first air-out subassembly, second air-out subassembly, heating element and switching assembly, wind channel structure has the air supply wind channel, wind channel structure is located to first air-out subassembly and has first air outlet, second air-out subassembly assembles between first air-out subassembly and wind channel structure and has the second air outlet, the heating element is located inside the second air-out subassembly and is located the air current from the route that the second air outlet flows, switching assembly locates on the second air-out subassembly, switching assembly and second air-out subassembly swing joint are in order to control air supply wind channel and first air outlet and second air outlet alternative intercommunication.

Description

Air supply device

Technical Field

The application relates to the technical field of household appliances, in particular to an air supply device.

Background

Today, the quality of life of many people is getting higher and higher, and the living requirements of people are also getting higher and higher. The environmental impact can improve the quality of life through the electrical equipment. Therefore, innovation of the living electric appliances becomes particularly important.

In order to maintain proper indoor temperature in hot summer and cold winter, people often purchase fans and electric heaters for use in summer and winter respectively.

However, the fan and the electric heater have single functions, and the electric heater is idle in summer and the fan is idle in winter, so that the consumption expenditure is increased, the living space is occupied, and inconvenience is brought to the life of people.

Disclosure of Invention

Based on this, this application provides a blast apparatus to the problem of current blast apparatus function singleness, and this blast apparatus has the technological effect that has cold wind and hot-blast air supply function concurrently.

An air supply device, comprising: the air duct structure is provided with an air supply duct;

the first air outlet component is arranged on the air duct structure and is provided with a first air outlet;

the second air outlet assembly is assembled between the first air outlet assembly and the air duct structure and is provided with a second air outlet;

the heating piece is arranged in the second air outlet assembly and positioned on a path of the air flow flowing out of the second air outlet; and

the switching component is arranged on the second air outlet component and is movably connected with the second air outlet component to control the air supply duct to be communicated with one of the first air outlet and the second air outlet.

In one embodiment, the air supply device has a first configuration and a second configuration;

in the first mode, the first air outlet assembly is assembled on the air duct structure, and the air supply duct is communicated with the first air outlet;

in the second mode, the second air outlet assembly is assembled between the first air outlet assembly and the air duct structure, and the switching assembly controls the air supply duct to be communicated with one of the first air outlet and the second air outlet.

In one embodiment, the second air outlet assembly is detachably assembled between the first air outlet assembly and the air duct structure.

In one embodiment, the first air outlet assembly has a first air duct, the first air duct has an air inlet and a first air outlet, and the switching assembly can close or open the air inlet of the first air duct to separate or communicate the air supply duct and the first air outlet.

In one embodiment, the first air outlet extends along the direction of the airflow channel of the first air channel.

In one embodiment, the second air outlet assembly has a communication air duct, the communication air duct is disposed between the air supply air duct and the first air duct, the air supply air duct is communicated with the communication air duct, and the switching assembly is used for communicating or separating the communication air duct from the first air duct.

In one embodiment, the second air outlet assembly further comprises a second air duct, the second air duct is communicated with the communication air duct, the second air duct is provided with a second air outlet, and the heating element is arranged in the second air duct;

the switching component is used for separating or communicating the second air channel and the communicating air channel so as to communicate or separate the communicating air channel from the first air channel.

In one embodiment, the switching component and the second air outlet component are rotatably arranged to alternatively close the first air outlet or close the second air outlet.

In one embodiment, the second air outlet assembly comprises a first main body and a second main body, and the first main body and the second main body are mutually buckled to form a second air outlet;

the switching component is rotatably connected with the first main body and/or the second main body.

In one embodiment, the air supply device comprises a driving assembly, the driving assembly comprises a first driving piece and a transmission part, and the first driving piece is in transmission connection with the switching assembly through the transmission part and is used for driving the switching assembly to rotate relative to the second air outlet assembly.

In one embodiment, the switching assembly comprises a connecting shaft and a blocking plate, wherein one end of the connecting shaft is connected with the blocking plate, and the other end of the connecting shaft is connected with the transmission part;

the transmission part drives the blocking plate to synchronously rotate through the connecting shaft.

In one embodiment, the first air outlet is located above the second air outlet along the gravity direction.

In one embodiment, the air duct structure comprises a volute and a cyclone wheel, wherein the cyclone wheel is arranged in the volute and can rotate around the cyclone wheel to form an air supply air duct in the volute.

In one embodiment, the volute comprises a first half shell and a second half shell which are buckled with each other, and the air inlet of the air supply channel is positioned on the first half shell and/or the second half shell.

Above-mentioned air supply arrangement, through setting up second air-out subassembly and heating member, it forms the second air outlet that can send hot-blast, first air outlet that first air-out subassembly formed to send cold wind, when air supply arrangement sent hot-blast, then control switching component with air supply duct and first air outlet intercommunication blow cold wind, when air supply arrangement sent cold wind, then control switching component with air supply duct and second air outlet intercommunication blow hot-blast, thereby realized a double-purpose, the customer can control switching component according to service environment and use season, can realize multi-functional air supply, not only can reduce consumption expenditure and space's occupation, can also improve user's use experience sense.

Drawings

FIG. 1 is an exploded view of an air blower according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of the blower apparatus shown in FIG. 1 in a second configuration;

FIG. 3 is a schematic view of the blower apparatus of FIG. 1 in a first configuration;

FIG. 4 is a schematic structural view of a first air outlet assembly of the air supply device shown in FIG. 1;

FIG. 5 is a schematic view of a partial plan view of a second air outlet assembly of the air moving device shown in FIG. 1;

fig. 6 is a schematic perspective view illustrating an assembly of the switching assembly of the air supply device provided in fig. 1.

Reference numerals: 100. an air supply device; 10. an air duct structure; 11. an air supply duct; 11a, an air outlet of an air supply duct; 12. a volute; 121. a first half shell; 122. a second half shell; 13. a rotor; 14. a second driving member; 20. the first air outlet assembly; 21. a first air outlet; 22. a first air duct; 30. the second air outlet assembly; 31. a second air outlet; 321. the air duct is communicated; 322. a second air duct; 33. a first body; 34. a second body; 35. a first mounting location; 36. a second mounting location; 40. a heating member; 50. a switching assembly; 51. a connecting shaft; 51. a blocking plate; 60. a drive assembly; 61. a first driving member; 62. a transmission part; 621. a first gear; 622. and a second gear.

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is, however, susceptible of embodiment in many other forms than those described herein and similar modifications can be made by those skilled in the art without departing from the spirit of the application, and therefore the application is not to be limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited 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 formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 to 3, an embodiment of the present application provides an air supply device 100, specifically including an air duct structure 10, a first air outlet component 20, a second air outlet component 30, a heating element 40 and a switching component 50, where the air duct structure 10 has an air supply duct 11, the first air outlet component 20 is disposed on the air duct structure 10 and has a first air outlet 21, the second air outlet component 30 is assembled between the first air outlet component 20 and the air duct structure 10 and has a second air outlet 31, the heating element 40 is disposed inside the second air outlet component 30 and is located on a path of air flowing out from the second air outlet 31 for performing a heating function, the switching component 50 is disposed on the second air outlet component 30, and the switching component 50 is movably connected with the second air outlet component 30 to control the air supply duct 11 to be in alternative communication with the first air outlet 21 and the second air outlet 31.

As can be appreciated, referring to fig. 3, the air supply duct 11 has an air supply duct outlet 11a, and air in the air supply duct 11 can be discharged from the air supply duct outlet 11a to flow to different positions.

The first air outlet 21 of the first air outlet assembly 20 can be communicated with the air supply duct air outlet 11a under the control of the switching assembly 50, and at this time, the air flow in the air supply duct 11 is directly discharged through the first air outlet 21, so as to realize cold air supply.

Referring to fig. 2, the second air outlet 31 of the second air outlet assembly 30 may be communicated with the air supply duct air outlet 11a under the control of the switching assembly 50, and since the heating element 40 is disposed on the path of the air flow flowing out from the second air outlet 31, when the air flow in the air supply duct 11 flows through the heating element 40, the air flow can be heated by the heating element 40 and then flows out from the second air outlet 31, thereby realizing hot air supply.

In this way, in the air supply device 100 of the present application, the second air outlet assembly 30 and the heating element 40 are provided, so that the second air outlet 31 through which hot air can be supplied is formed, and the first air outlet assembly 20 forms the first air outlet 21 through which cold air can be supplied. When the air supply device 100 is required to supply hot air, the control switching assembly 50 is used for communicating the air supply air duct 11 with the first air outlet 21 to blow cold air, and when the air supply device 100 is required to supply cold air, the control switching assembly 50 is used for communicating the air supply air duct 11 with the second air outlet 31 to blow hot air, so that one machine dual-purpose is realized, a customer can control the switching assembly 50 according to the use environment and the use season, and multifunctional air supply can be realized, so that consumption expenditure and occupation of space can be reduced, and the use experience of the user can be improved.

Specifically, referring to fig. 1 to 2, the air duct structure 10 includes a volute 12 and a cyclone wheel 13, the cyclone wheel 13 is disposed in the volute 12 and can rotate around itself to form an air supply duct 11 inside the volute 12, the cyclone wheel 13 rotates under control to form a cyclone air flow inside the volute 12, and external air flow is drawn into the volute 12 and then discharged from an air outlet of the air supply duct 11, thereby realizing air supply of the air supply duct 11.

Specifically, referring to fig. 1, a wind channel air inlet 11b and a wind channel air outlet 11a are formed on a volute 12, and during the rotation of a rotor 13, external airflow enters the interior of the volute 12 from the wind channel air inlet 11b, and along with the rotation of the rotor 13, the airflow in the wind channel 11 is sent out from the wind channel air outlet 11 a.

In one embodiment, referring to fig. 1, the air supply device 100 includes a second driving member 14, where the second driving member 14 is disposed in the volute 12 and is in driving connection with the cyclone wheel 13, and the second driving member 14 is used for controlling the rotation speed and rotation direction of the cyclone wheel 13, so as to adjust the wind speed of the air flow sent out by the air supply duct 11. The second driving member 14 may be a driving structure such as a driving motor, and its specific arrangement form is not limited.

Further, referring to fig. 1, the volute 12 includes a first half-shell 121 and a second half-shell 122 that are fastened to each other, where the first half-shell 121 and the second half-shell 122 are fastened to form a closed whole, and the air supply duct inlet 11b is located on the first half-shell 121 and/or the second half-shell 122. In one embodiment, the air inlet 11b of the air supply duct may be disposed on the second half-shell 122, and the second driving member 14 is connected with the first half-shell 121, so as to form the complete air supply duct 11.

In one embodiment, the spiral casing 12 of the air duct structure 10 may be circular, or may be square, and the internal accommodating space of the air duct structure may be set according to the space required by the rotation of the rotor 13, so as to avoid interference with the spiral casing 12 when the rotor 13 rotates. The cyclone wheel 13 may be a hollow cylindrical structure, and rotates around its center to generate cyclone airflow.

In one embodiment, referring to fig. 2 to 3, the first air outlet assembly 20 has a first air duct 22, the first air duct 22 has an air inlet and an air outlet, and the air outlet of the first air duct 22 is the first air outlet 21. When the user needs cooling air, the air inlet of the first air duct 22 is communicated with the air outlet 11a of the air supply duct, and at this time, the air flow in the air supply duct 11 enters the first air outlet assembly 20 through the first air duct 22 and is discharged from the first air outlet 21.

Further, referring to fig. 4, the first air outlet 21 may be set to extend along the extending direction of the first air duct 22, so as to form a long first air outlet 21, so that cold air is relatively dispersed and cannot be intensively blown to a certain position, user experience is improved, meanwhile, cold air is blown out in a large area, circulation of air is accelerated, and external cooling is faster.

Specifically, the switching component 50 may close the air inlet of the first air duct 22 to separate the air supply duct 11 from the first air outlet 21, and at this time, the air flow in the air supply duct 11 cannot enter the first air duct 22, and the air supply duct 11 is communicated with the second air outlet 31, so as to realize the air supply. The switching assembly 50 can also open the air inlet of the first air duct 22 to communicate the air supply duct 11 with the first air outlet 21, and at this time, the air flow in the air supply duct 11 enters the first air duct 22, so as to realize cold air supply from the first air outlet 21.

In one embodiment, referring to fig. 2, the second air outlet assembly 30 has a communication air duct 321, the communication air duct 321 is disposed between the air supply air duct 11 and the first air duct 22, and the air supply air duct 11 is in communication with the communication air duct 321.

When the switching assembly 50 opens the air outlet of the first air duct 22, the communicating air duct 321 communicates the air supply duct 11 with the first air duct 22, and the air flow in the air supply duct 11 flows into the communicating air duct 321 from the air supply duct air outlet 11a and then flows to the first air duct 22, so as to realize cold air supply.

When the switching assembly 50 closes the air inlet of the first air duct 22, the communicating air duct 321 is not communicated with the first air duct 22, and the air flow in the air supply duct 11 cannot be sent to the first air outlet 21 side and is sent to the second air outlet 31 side, which is described in detail below.

Further, referring to fig. 2, the second air outlet assembly 30 further includes a second air duct 322, the second air duct 322 is in communication with the communication air duct 321, the second air duct 322 has a second air outlet 31, the heating element 40 is disposed in the second air outlet 31, and the switching assembly 50 is configured to separate or communicate the second air duct 322 with the communication air duct 321.

When the switching assembly 50 opens the air outlet of the first air duct 22, the switching assembly 50 separates the second air duct 322 from the communicating air duct 321, and the air in the communicating air duct 321 can only flow to the first air duct 22, so as to realize cold air supply. When the switching assembly 50 closes the air inlet of the first air duct 22, the communicating air duct 321 is separated from the first air duct 22, and the air flow in the air supply air duct 11 enters the second air duct 322 from the communicating air duct 321, and is heated by the heating element 40 and then blown out from the second air outlet 31, so as to realize the air supply.

For the communicating air duct 321, the switching component 50 can alternatively communicate the communicating air duct with the first air duct 22 or the second air duct 322 to realize the delivery of cold air or hot air.

Specifically, the communicating air duct 321 and the second air duct 322 may form an "L" connection, and along the gravity direction, the first air outlet 21 is located above the second air outlet 31, which is equivalent to the cold air outlet (the first air outlet 21) being located above the hot air outlet (the second air outlet 31).

The cooling air flows to the first air outlet 21 along a straight line path from bottom to top along the law of descending of cooling air and ascending of hot air, and the cooling air is blown out from a higher position, so that the temperature can be effectively, uniformly and rapidly reduced, the temperature difference in the gravity direction is reduced, and the user experience effect is improved. The hot air flows to the second air outlet 31 after flowing through the L-shaped bending path, is blown out from a lower position and then goes upward in the air, so that the temperature is effectively, uniformly and rapidly increased, and meanwhile, the situation that the temperature of the body surface is too high and uneven due to direct blowing of a human body is avoided, and discomfort is caused.

In one embodiment, the switching assembly 50 and the second air outlet assembly 30 are rotatably disposed to alternatively close the first air outlet 21 or the second air outlet 31, which is equivalent to that the switching assembly 50 can rotate to two positions relative to the second air outlet assembly 30, wherein the first position is between the communicating air duct 321 and the first air duct 22, the air supply device 100 supplies hot air through the second air outlet 31, and the second position is between the second air duct 322 and the communicating air duct 321, and the air supply device 100 supplies cold air through the first air outlet 21.

Specifically, referring to fig. 1 and 5, the second air outlet assembly 30 includes a first main body 33 and a second main body 34, the first main body 33 and the second main body 34 are fastened to each other to form a communication air duct 321, a second air duct 322, and a second air outlet 31, a first mounting position 35 and a second mounting position 36 are formed on the first main body 33 and/or the second main body 34, the first mounting position 35 is used for mounting the heating element 40, and the second mounting position 36 is used for mounting the switching assembly 50, so that the switching assembly 50 is rotationally connected with the first main body 33 and/or the second main body 34.

The heating element 40 may be a heating wire, a heating net, or the like, and is disposed facing the second air outlet 31 and capable of heating the air flowing to the second air outlet 31.

In one embodiment, referring to fig. 2 to 3, the air supply device 100 has a first configuration, such as fig. 3, in which the first air outlet assembly 20 is mounted on the air duct structure 10, and a second configuration, such as fig. 2, in which the second air outlet assembly 30 is mounted between the first air outlet assembly 20 and the air duct structure 10.

In the first embodiment, the air supply duct 11 is directly connected to the first air outlet 21, and in this case, the air supply device 100 is a single cooling unit, and only cold air supply is realized. In the second mode, the switching assembly 50 controls the air supply duct 11 to be selectively communicated with the first air outlet 21 and the second air outlet 31, and at this time, the air supply device 100 is equivalent to a cooling and heating unit, so that not only hot air supply but also cold air supply can be realized.

When a customer selects a product, a unit in a first form can be selected, and a unit in a second form can be selected, so that diversified setting of the product is realized.

Specifically, the second air outlet assembly 30 is detachably assembled between the first air outlet assembly 20 and the air duct structure 10, the second air outlet assembly 30 is detached, the first air outlet assembly 20 is connected with the air duct structure 10 to form a first shape, the second air outlet assembly 30 is assembled, and the first air outlet assembly 20, the second air outlet assembly 30 and the air duct structure 10 are connected to form a second shape.

Through the dismantlement of second air-out subassembly 30, can realize the provision of the product of two kinds of forms on the basis of minimum cost, need not extra die sinking or setting, can realize the provision of two kinds of units.

The assembly of the first air outlet component 20 and the air duct structure 10, the assembly of the first air outlet component 20 and the second air outlet component 30, and the assembly of the second air outlet component 30 and the volute 12 of the air duct structure 10 can be fixed by using bolts, buckles, or nested structures, but the application is not limited herein, and when attention needs to be paid, the assembly of the first air outlet component 20 and the air duct structure 10, the assembly of the first air outlet component 20 and the second air outlet component 30, and the assembly of the second air outlet component 30 and the volute 12 of the air duct structure 10 need to consider the tightness so as to ensure the air supply effectiveness.

It can be understood that the above operations of the switching assembly 50 are all performed when the air supply device 100 is in the second configuration, and in the first configuration, the second air outlet assembly 30, the heating element 40 and the switching assembly 50 are all removed, and the air supply device 100 directly realizes the single cooling function without adjustment.

In one embodiment, referring to fig. 1 and 6, the air supply device 100 includes a driving assembly 60, the driving assembly 60 includes a first driving member 61 and a transmission portion 62, and the first driving member 61 is in transmission connection with the switching assembly 50 through the transmission portion 62 and is used for driving the switching assembly 50 to rotate relative to the second air outlet assembly 30, so as to realize automatic adjustment of cold air and warm air when the air supply device 100 is in the second configuration.

Specifically, the air supply device 100 may further include a controller, and the user sends a command for cold air or hot air to the controller, and the command is transmitted to the driving component 60, so as to control the switching component 50 to automatically rotate to a suitable position, thereby improving the user experience.

In one embodiment, referring to fig. 1 and 6, the switching assembly 50 includes a connecting shaft 51 and a blocking plate 51, one end of the connecting shaft 51 is connected to the blocking plate 51, the other end is connected to a transmission portion 62, and the transmission portion 62 drives the blocking plate 51 to rotate synchronously through the connecting shaft 51, so that the blocking plate 51 separates the communication air duct 321 from the first air duct 22 or separates the communication air duct 321 from the second air duct 322.

In particular, the blocking plate 51 may be provided in a plate-like, block-like or other form of structure, which is not limited herein.

Specifically, referring to fig. 1 and 6, the transmission part 62 includes a first gear 621 and a second gear 622, the first gear 621 is connected to the output shaft of the first driving member 61 and rotates synchronously with the output shaft, the first gear 621 and the second gear 622 mesh to drive the second gear 622 to rotate, and the second gear 622 is connected to the connection shaft 51 to drive the blocking plate 51 to rotate synchronously when the second gear 622 rotates.

In one embodiment, one end of the connecting shaft 51 penetrates out of the second air outlet assembly 30 and is connected with the second gear 622 mounted on the outer wall of the second air outlet assembly 30, and at this time, the driving assembly 60 is integrally located on the outer wall of the second air outlet assembly 30, so that the operation is more free, and no position interference is generated on the movement of the blocking plate 51.

The air supply device 100 provided by the application has the following advantages:

(1) By disassembling or assembling the second air outlet assembly 30, the air supply device 100 of the first form and the second form is provided, so that product diversification is realized, and the cost of the whole product and the cost of developing a new product mould are reduced.

(2) When the product is in the second form, the position of the switching component 50 is changed, so that the air supply with different functions of cooling and heating air is realized, one machine is used for double purposes, and one machine is used for supplying cold air or hot air according to the needs of a user.

(3) The first air outlet 21 for supplying cold air is arranged at a position higher than the second air outlet 31 for supplying hot air in the gravity direction, so that the user experience is improved, and the indoor temperature is more uniform.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples represent only a few embodiments of the present application, which are described in more detail and are not thereby to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims (14)

1. An air blowing device, comprising:

an air duct structure (10) having an air supply duct (11);

the first air outlet component (20) is arranged on the air duct structure (10), and the first air outlet component (20) is provided with a first air outlet (21);

the second air outlet assembly (30) is assembled between the first air outlet assembly (20) and the air duct structure (10) and is provided with a second air outlet (31);

the heating piece (40) is arranged in the second air outlet assembly (30) and is positioned on a path of air flow flowing out of the second air outlet (31); and

the switching component (50) is arranged on the second air outlet component (30), and the switching component (50) is movably connected with the second air outlet component (30) to control the air supply duct (11) to be communicated with the first air outlet (21) and the second air outlet (31) in a selective mode.

2. The air supply device according to claim 1, wherein the air supply device (100) has a first configuration and a second configuration;

in the first mode, the first air outlet assembly (20) is assembled on the air duct structure (10), and the air supply duct (11) is communicated with the first air outlet (21);

under the second state, the second air outlet assembly (30) is assembled between the first air outlet assembly (20) and the air duct structure (10), and the switching assembly (50) controls the air supply duct (11) to be communicated with the first air outlet (21) and the second air outlet (31) in a selective mode.

3. The air supply device according to claim 2, wherein the second air outlet assembly (30) is detachably assembled between the first air outlet assembly (20) and the air duct structure (10).

4. The air supply device according to claim 1, wherein the first air outlet assembly (20) has a first air duct (22), the first air duct (22) has an air inlet and the first air outlet (21), and the switching assembly (50) can close or open the air inlet of the first air duct (22) to separate or communicate the air supply air duct (11) and the first air outlet (21).

5. The air supply device according to claim 4, wherein the first air outlet (21) is opened along the direction of the air flow channel of the first air duct (22).

6. The air supply device according to claim 4, wherein the second air outlet assembly (30) has a communication air duct (321), the communication air duct (321) is disposed between the air supply air duct (11) and the first air duct (22) and the air supply air duct (11) is in communication with the communication air duct (321), and the switching assembly (50) is configured to communicate or separate the communication air duct (321) from the first air duct (22).

7. The air supply device according to claim 6, wherein the second air outlet assembly (30) further comprises a second air duct (322), the second air duct (322) is in communication with the communication air duct (321), the second air duct (322) has the second air outlet (31), and the heating element (40) is disposed in the second air duct (322);

the switching component (50) is used for separating or communicating the second air channel (322) with the communication air channel (321) so as to communicate or separate the communication air channel (321) from the first air channel (22).

8. The air supply device according to claim 1, wherein the switching component (50) and the second air outlet component (30) are rotatably arranged to alternatively close the first air outlet (21) or close the second air outlet (31).

9. The air supply device according to claim 8, wherein the second air outlet assembly (30) includes a first main body (33) and a second main body (34), and the first main body (33) and the second main body (34) are fastened to each other to form the second air outlet (31);

the switching assembly (50) is rotatably connected with the first body (33) and/or the second body (34).

10. The air supply device according to claim 8, wherein the air supply device (100) comprises a driving assembly (60), the driving assembly (60) comprises a first driving member (61) and a transmission part (62), and the first driving member (61) is in transmission connection with the switching assembly (50) through the transmission part (62) and is used for driving the switching assembly (50) to rotate relative to the second air outlet assembly (30).

11. The air supply device according to claim 10, wherein the switching assembly (50) includes a connection shaft (52) and a blocking plate (51), one end of the connection shaft (52) is connected to the blocking plate (51), and the other end is connected to the transmission portion (62);

the transmission part (62) drives the blocking plate (51) to synchronously rotate through the connecting shaft (52).

12. A blowing device according to any one of claims 1-11, characterized in that said first air outlet (21) is located above said second air outlet (31) in the direction of gravity.

13. The air supply device according to claim 1, wherein the air duct structure (10) comprises a volute (12) and a cyclone wheel (13), and the cyclone wheel (13) is disposed in the volute (12) and can rotate around itself to form the air supply duct (11) inside the volute (12).

14. The air supply device according to claim 13, wherein the volute (12) comprises a first half-shell (121) and a second half-shell (122) which are buckled with each other, and the air inlet of the air supply duct (11) is positioned on the first half-shell (121) and/or the second half-shell (122).

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