CN212511711U - Equipment with air duct - Google Patents

Abstract

The utility model relates to the technical field of household appliances, concretely relates to equipment with wind channel, include: the fan is arranged in the main body structure, and the main body structure is provided with an air outlet frame; the cleaning assembly is arranged in the main body structure and comprises a supporting piece and a hairbrush arranged on the supporting piece, the hairbrush is in contact with the air outlet frame, and the supporting piece is suitable for rotating under the driving of the driving assembly. Through setting up clean subassembly, clean subassembly includes support piece and locates the brush on the support piece, brush and air-out frame contact, and when support piece rotary motion under drive assembly's drive, the brush is clean to air-out frame, and the dust of brushing off blows off under the effect of fan, and is convenient clean to air-out frame.

Description

Equipment with air duct

Technical Field

The utility model relates to the technical field of household appliances, concretely relates to equipment with wind channel.

Background

At present, common sterilizing machines or air purifiers on the market all have the air-out at the top, and after using a period, the dust can be attached to the air-out frame at top, and long-time accumulation can cause the air outlet to block up and make the air output reduce. Therefore, the air outlet frame needs to be cleaned and treated manually at regular intervals, and for some large sterilizing machines or air purifiers, the cleaning is difficult, and great inconvenience is brought to users.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the sterilizer or air purifier among the prior art and going out the air frame and easily falling into the dust, be difficult for abluent defect to an equipment that has the wind channel of being convenient for to going out the air frame cleanness is provided.

In order to solve the above technical problem, the utility model provides a pair of equipment with wind channel, include:

the fan is arranged in the main body structure, and the main body structure is provided with an air outlet frame;

the cleaning assembly is arranged in the main body structure and comprises a supporting piece and a hairbrush arranged on the supporting piece, the hairbrush is in contact with the air outlet frame, and the supporting piece is suitable for rotating under the driving of the driving assembly.

The drive assembly includes:

a plurality of electromagnetic coils arranged in a circumferential direction of the main body structure;

a magnet disposed on the support.

The main body structure comprises a main body part and a top cover plate connected to the top end of the main body part, an air outlet channel is formed in the top cover plate, and the air outlet frame and the electromagnetic coil are arranged on the top cover plate.

The equipment with wind channel still includes the lift apron establish drive assembly's drive is established with liftable the top of air-out frame to have the lid and establish initial condition on the major structure and with form the open mode in clearance between the air-out frame.

The drive assembly further includes a transmission mechanism adapted to translate rotational movement of the support member into lifting movement of the lift cap.

Be equipped with the support in the major structure, support piece rotatably establishes on the support, drive mechanism includes:

the lead screw is fixedly connected with the supporting piece;

the nut is arranged on the screw rod and fixedly connected with the lifting cover plate;

and the limiting structure is connected with the nut and used for limiting the rotation of the nut to enable the nut to move up and down along the screw rod.

The support is provided with a limiting hole, and one end of the lead screw is arranged in the limiting hole.

And a bearing is arranged outside one end of the screw rod and is positioned in the limiting hole.

The limit structure comprises:

the fixing piece is fixedly connected to the lower side of the air outlet frame, and a limiting groove extending in the vertical direction is formed in the fixing piece;

and one end of the limiting part is fixedly connected with the nut, and the other end of the limiting part is embedded in the limiting groove.

The limiting piece is a wave ball screw.

When the limiting part is higher than the limiting groove, the lifting cover plate is in the opening state.

The bottom of spacing groove is equipped with travel switch, travel switch sets up in the circuit to the drive assembly power supply, when the locating part is located the bottom of spacing groove, the lift apron is in initial condition.

The lifting cover plate comprises a body part and a sleeve part, the sleeve part is suitable for penetrating through a mounting hole in the air outlet frame and is fixedly connected with the nut, and the sleeve part is suitable for surrounding the screw rod.

The support member includes a first portion adapted to be fixedly coupled to the lead screw, a second portion provided with the brush, and a bent portion connecting the first portion and the second portion, the second portion being disposed higher than the first portion, and the sleeve portion being located inside the bent portion.

The utility model discloses technical scheme has following advantage:

1. the utility model provides an equipment with wind channel, through setting up clean subassembly, clean subassembly includes support piece and locates the brush on the support piece, brush and the contact of air-out frame, and support piece is when rotary motion under drive assembly's drive, and the brush is clean to air-out frame, and the dust of brushing off blows off under the effect of fan, and is convenient clean to air-out frame.

2. The utility model provides an equipment with wind channel, drive assembly includes: a plurality of electromagnetic coils arranged in a circumferential direction of the main body structure; the magnet is arranged on the supporting piece, the cleaning assembly is driven to rotate in an electromagnetic driving mode, and the electromagnetic coil is arranged along the circumferential direction of the main body structure, so that the normal air outlet of the equipment with the air channel cannot be influenced.

3. The utility model provides an equipment with wind channel, the major structure includes the main part, connects the lamina tecti of main part top department, be formed with the air-out passageway on the lamina tecti, go out the air-out frame solenoid sets up on the lamina tecti, when the assembly, fix solenoid on the lamina tecti earlier, on adorning the main part with the lamina tecti again, be convenient for to solenoid's installation fixed.

4. The utility model provides an equipment with wind channel, equipment with wind channel still includes the lift apron establish drive assembly's drive is established with liftable down the top of air-out frame to have the lid and establish initial state on the major structure and with form the open mode in clearance between the air-out frame, the setting of lift apron can prevent that the dust from falling on the air-out frame or inside the entering equipment.

5. The utility model provides an equipment with wind channel, drive assembly still includes drive mechanism, drive mechanism be suitable for with support piece's rotary motion is transformed into the elevating movement of lift apron through setting up a drive assembly, can drive clean subassembly rotary motion and clean, can make lift apron elevating movement again, with the lift apron rise, the normal air-out of air-out frame, simple structure is compact.

6. The utility model provides an equipment with wind channel, be equipped with the support in the major structure, support piece rotatably establishes on the support, drive mechanism includes: the lead screw is fixedly connected with the supporting piece; the nut is arranged on the screw rod and fixedly connected with the lifting cover plate; the limiting structure is connected with the nut and used for limiting the nut to rotate so that the nut can move up and down along the screw rod, the support piece drives the screw rod to move rotationally together during the rotation movement, therefore, the nut moves up and down on the screw rod, the lifting cover plate moves up and down along with the nut, the transmission mechanism is simple in structure, small in occupied space and free of influence on normal work of the equipment.

7. The utility model provides an equipment with wind channel, be equipped with spacing hole on the support, the one end setting of lead screw is in spacing downthehole, spacing hole can be injectd the motion of lead screw, avoids the lead screw to take place to rock.

8. The utility model provides an equipment with wind channel, the locating part is higher than during the spacing groove, the lift apron is in open mode, after the locating part left the spacing groove, the nut rotated along with the lead screw, can avoid the locating part constantly to apply and cause the damage of locating part or spacing groove for the spacing groove effort.

9. The utility model provides an equipment with wind channel, the bottom of spacing groove is equipped with travel switch, travel switch sets up right in the circuit of drive assembly power supply, the locating part is located during the bottom of spacing groove, the lift apron is in initial condition, when this equipment was closed, drive assembly drove the lift apron downstream, and when the locating part moved the bottom of spacing groove, the locating part bumped travel switch, and solenoid outage, drive assembly automatic stop work.

10. The utility model provides an equipment with wind channel, the lifting cover board includes this somatic part, sleeve portion, the sleeve portion is suitable for to pass mounting hole on the play wind frame and with nut fixed connection, the sleeve portion is suitable for to encircle the lead screw sets up, sets up like this and makes lifting cover board's atress balanced, lift or rotation that can be stable.

11. The utility model provides an equipment with wind channel, support piece including be suitable for with lead screw fixed connection's first portion, be provided with the second part of brush and connection the first portion with the bending part of second portion, the second portion is higher than the first portion sets up, the sleeve part is located bending part's inboard sets up like this and makes bending part's inboard form the telescopic space of installation, and the brush can be sufficient and go out the contact of fan frame, ensures clean effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a cross-sectional view of an apparatus having an air chute provided in an embodiment of the present invention;

FIG. 2 is an exploded view of the apparatus of FIG. 1 having a duct;

FIG. 3 is a schematic view of a portion of the apparatus shown in FIG. 1 with a duct in an operating state;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is a schematic view of the top cover plate of FIG. 1;

FIG. 6 is a schematic structural view of the support member of FIG. 1 with a lead screw and a magnet mounted thereon;

FIG. 7 is a schematic structural view of the nut of FIG. 2;

FIG. 8 is a schematic view of the lift cover of FIG. 2;

FIG. 9 is a schematic structural view of the wave ball screw of FIG. 2;

fig. 10 is a schematic structural view of the air outlet frame in fig. 2;

fig. 11 is a schematic structural view of the fixing member in fig. 2.

Description of reference numerals:

1-a body structure; 101-a body portion; 102-a top cover plate; 1021-an air outlet channel; 2-air outlet frame; 21-mounting holes; 3-a support; 31-a first part; 32-a second portion; 33-a bent portion; 4-lifting the cover plate; 41-a body portion; 42-a sleeve portion; 5-a lead screw; 6-a nut; 61-assembly holes; 7-ball screw; 8-a fixing piece; 81-limiting groove; 9-a magnet; 10-an electromagnetic coil; 11-a bearing; 12-a scaffold; 13-travel switch.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

The present embodiment provides a specific embodiment of a device with an air duct, which may be a sterilizer, an air purifier or other device with an air duct, as shown in fig. 1 to 11, the device includes a main body structure 1 and a cleaning assembly.

The inside fan that is equipped with of major structure 1 is equipped with out wind frame 2 on the major structure 1, and in this embodiment, this equipment is the sterilizing machine, and inside filter screen, heating element etc. all were located major structure 1, the inside wind channel that is formed with of major structure 1, and the during operation fan constantly moves, makes the air get into inside major structure 1 from the air intake to from going out wind frame 2 and discharging.

The cleaning assembly is arranged in the main body structure 1 and comprises a support piece 3 and a hairbrush arranged on the support piece 3, the hairbrush is in contact with the air outlet frame 2, and the support piece 3 is suitable for rotating under the driving of the driving assembly.

According to the equipment with the air channel provided by the embodiment, when the supporting piece 3 is driven by the driving assembly to rotate, the brush cleans the air outlet frame 2, and brushed dust is blown out under the action of the fan, so that the air outlet frame 2 is conveniently cleaned.

The air outlet frame 2 is shown in fig. 1 to be provided at the top of the main structure 1, and in other alternative embodiments, the air outlet frame 2 may be provided at the side of the main structure 1.

In one embodiment, a drive assembly comprises: the electromagnetic coil 10 and the magnet 9 are arranged in a plurality of electromagnetic coils 10 along the circumferential direction of the main body structure 1, the magnet 9 is arranged on the support 3 and is specifically arranged at the side part close to the support 3 or the bottom surface close to the side part, a total of 4 electromagnetic coils 10 are arranged in fig. 5, the 4 electromagnetic coils 10 are uniformly distributed in the circumferential direction of the main body structure 1, the magnet 9 is as close to the electromagnetic coils 10 as possible but is not in contact with the electromagnetic coils 10, and when the electromagnetic coils 10 are electrified, a magnetic field can be generated to generate magnetic force on the magnet 9, so that the support 3 is driven to rotate. In the working process, when the device runs, a first electromagnetic coil 10 which is close to the magnet 9 is electrified, the first electromagnetic coil 10 generates a magnetic field, the attraction magnet 9 rotates to the front of the attraction magnet, the support piece 3 starts to move, then a second electromagnetic coil 10 which is adjacent to the first electromagnetic coil 10 is electrified, meanwhile, the first electromagnetic coil 10 is powered off, the magnet 9 can be attracted to the front of the second electromagnetic coil 10, the plurality of electromagnetic coils 10 are sequentially electrified and powered off according to the rotating direction of the support piece 3, the magnet 9 can continuously drive the support piece 3 and the brush to rotate, and the rotating direction of the support piece 3 under the condition is defined as the positive direction. This equipment with wind channel, solenoid 10 sets up along the circumferential direction of major structure 1, can not influence the normal air-out of this equipment with wind channel. In other alternative embodiments, the drive assembly may comprise a drive motor that imparts rotational motion to the cleaning assembly.

In one embodiment, the main body structure 1 includes a main body 101, a top cover plate 102 connected to a top end of the main body 101, an air outlet channel 1021 is formed on the top cover plate 102, and the air outlet frame 2 and the electromagnetic coil 10 are disposed on the top cover plate 102. During assembly, the solenoid coil 10 is fixed to the top cover plate 102, and the top cover plate 102 is mounted on the main body 101, so that the solenoid coil 10 can be easily mounted and fixed. In other alternative embodiments, the top cover plate 102 may be of unitary construction with the main body portion 101.

On the basis of the above embodiment, in an optional embodiment, the apparatus with the air duct further includes a lifting cover plate 4, which is arranged above the air outlet frame 2 in a lifting manner under the driving of the driving assembly, and has an initial state of covering the main body structure 1 and an open state of forming a gap with the air outlet frame 2. Wherein initial condition is the idle state of equipment, and lifting cover plate 4 lid is on major structure 1, shelters from the air-out frame. The setting of lift apron 4 can prevent that the dust from falling on air-out frame 2 or inside the entering equipment, and the setting of lift apron 4 for it is no matter at initial condition or open mode, and the homoenergetic shelters from air-out frame 2, avoids the dust to fall into on air-out frame 2 or through air-out frame 2 entering equipment inside, thereby also makes the dust that goes out on the air-out frame 2 reduce, and clean subassembly also can be more thorough to the cleanness of air-out frame 2.

On the basis of the above embodiments, in a preferred embodiment, the drive assembly further comprises a transmission mechanism adapted to convert a rotational movement of the support 3 into a lifting movement of the lifting cover 4. Specifically, through electrifying and cutting off the plurality of electromagnetic coils 10 in sequence, the magnet 9 is enabled to drive the support piece 3 to rotate, the support piece 3 is in the rotating process, the rotating motion of the support piece 3 is converted into the lifting motion of the lifting cover plate 4 by the transmission mechanism, the lifting cover plate 4 is opened or closed by the cleaning assembly in the moving process, the cleaning assembly can be driven to rotate to clean by the driving assembly, the lifting cover plate 4 can also be driven to move up and down, the lifting cover plate 4 is lifted, the air outlet frame 2 normally exhausts air, and the structure is simple and compact. In other alternative embodiments, the driving assembly may not include a transmission mechanism, and two different sets of driving structures are respectively adopted to drive the supporting member 3 to rotate and the lifting cover plate 4 to lift, and obviously, in such embodiments, the number of parts that need to be arranged in the main body structure 1 is too large, which may affect the normal operation of the device.

On the basis of the above embodiments, in one embodiment, a support 12 is disposed in the main body structure 1, the support 3 is rotatably disposed on the support 12, the transmission mechanism includes a lead screw 5, a nut 6, and a limiting structure, wherein the lead screw 5 is fixedly connected with the support 3, specifically, the support 3 is a symmetrical structure, the lead screw 5 is connected to the middle position of the support 3, as shown in fig. 6, a connecting hole is disposed at the middle position of the support 3, a portion of the lead screw 5 without threads is fixed in the connecting hole, and the lead screw 5 can be connected to the connecting hole in an interference fit manner; the nut 6 is arranged on the screw rod 5 and is specifically arranged on a part with threads of the screw rod 5, and in an initial state, the nut 6 can be arranged at the lowest end of the part with threads, namely the nut 6 is in contact with the support member 3, and the nut 6 is fixedly connected with the lifting cover plate 4; the limiting structure is connected with the nut 6 and used for limiting the rotation of the nut 6 to enable the nut 6 to move up and down along the screw rod 5. This drive mechanism adopts lead screw 5, nut 6, and lead screw 5 is vertical to be set up, and the space that occupies is little, can not influence the normal work of this equipment. In other alternative embodiments, the transmission mechanism may include a gear set and a rack, specifically, the gear set is fixedly connected to the support 3, the rack is meshed with the gear set, the rack is fixedly connected to the lifting cover 4, when the gear set rotates, the rotation in the horizontal plane is firstly converted into the rotation in the vertical plane, and the gear set is connected to the rack and finally converted into the movement in the vertical direction of the rack.

In one embodiment, the bracket 12 is provided with a limiting hole, and one end of the lead screw 5 is arranged in the limiting hole. Specifically, the bottom of lead screw 5 is located spacing downthehole, and spacing hole can be injectd lead screw 5's motion, avoids lead screw 5 to take place to rock.

To ensure smooth and stable rotation of the screw 5, in one embodiment, a bearing 11 is disposed outside one end of the screw 5, and the bearing 11 is located in the limit hole.

On the basis of the above embodiments, in one embodiment, the limiting structure includes a fixing member 8 and a limiting member, wherein the fixing member 8 is fixedly connected to the lower side of the air-out frame 2, and the fixing member 8 is provided with a limiting groove 81 extending along the vertical direction; one end of the limiting part is fixedly connected with the nut 6, and the other end of the limiting part is embedded in the limiting groove 81. As shown in the figure, the fixing member 8 includes a cylindrical portion and a connecting portion disposed at the upper end of the cylindrical portion, the connecting portion is annular, the connecting portion has a plurality of connecting holes, the connecting portion is adapted to be connected with the air outlet frame 2 through screws, and the limiting groove 81 is disposed on the cylindrical portion. In other alternative embodiments, the fixing member 8 may be a block-shaped structure, and the block-shaped structure is provided with a limiting groove 81 extending in a vertical direction.

In one embodiment, the limiting member is a bead screw 7, and specifically, a mounting hole 61 is provided on one side surface of the nut 6, the mounting hole 61 may be a threaded hole, one end of the bead screw 7 is screwed into the mounting hole 61, and the other end is embedded in the limiting groove 81. In other alternative embodiments, the limiting member may be a rod-shaped structure, one end of the rod-shaped structure is fixedly connected to the nut 6, and the other end of the rod-shaped structure is embedded in the limiting groove 81.

In addition to the above embodiments, in one embodiment, when the stopper is higher than the stopper groove 81, the access panel 4 is in the open state. After the limiting member leaves the limiting groove 81, the nut 6 rotates along with the screw 5, so that the damage of the limiting member or the limiting groove 81 caused by the action force continuously applied to the limiting groove 81 by the limiting member can be avoided. Of course, in other alternative embodiments, the limiting member cannot be disengaged from the limiting groove 81, in which the lifting cover 4 is in the open state when the limiting member reaches the top end of the limiting groove 81 or the nut 6 reaches the top end of the lead screw 5, in this embodiment, since the nut 6 is still subjected to the lifting force exerted by the lead screw 5 but limited by the limiting groove 81, the limiting member connected to the nut 6 exerts an external force on the limiting groove 81, and the same limiting member is subjected to a counter force of the limiting groove 81, which may cause the limiting member or the limiting groove 81 to be damaged.

On the basis of the above embodiments, in one embodiment, the bottom end of the limiting groove 81 is provided with the travel switch 13, the travel switch 13 is disposed in the circuit for supplying power to the driving assembly, and when the limiting member is located at the bottom end of the limiting groove 81, the lifting cover plate 4 is in the initial state. When the device is closed, the driving assembly drives the lifting cover plate 4 to move downwards, when the limiting part moves to the bottom end of the limiting groove 81, the limiting part touches the travel switch 13, the electromagnetic coil 10 is powered off, and the driving assembly stops working automatically.

As shown in fig. 8, the lifting cover 4 includes a main body 41 and a sleeve 42, the sleeve 42 is adapted to pass through the mounting hole 21 of the air-out frame 2 and is fixedly connected with the nut 6, and the sleeve 42 is adapted to be disposed around the lead screw 5. The lifting cover plate 4 is balanced in stress and can be lifted or rotated stably. The main body 41 may be integrally formed with the sleeve portion 42, or the sleeve portion 42 may be connected to the main body 41.

As shown in fig. 6, the support 3 includes a first portion 31 adapted to be fixedly coupled with the lead screw 5, a second portion 32 provided with a brush, and a bent portion 33 connecting the first portion 31 and the second portion 32, the second portion 32 being disposed higher than the first portion 31, and a sleeve portion 42 being located inside the bent portion 33. The arrangement enables the inner side of the bent part 33 to form a space for installing the sleeve, and the hairbrush can be fully contacted with the air outlet frame 2, so that the cleaning effect is ensured.

The equipment that has the wind channel that this embodiment provided, in the course of the work, this equipment moves, give first solenoid 10 circular telegram that wherein is close apart from magnet 9 earlier, first solenoid 10 produces magnetic field, attract magnet 9 to rotate to it with the front, make support piece 3 begin to move, later give second solenoid 10 circular telegram that first solenoid 10 is adjacent, first solenoid 10 outage simultaneously, magnet 9 can be attracted second solenoid 10 with the front according to the rotatory direction of support piece 3 this moment, analogize in proper order, a plurality of solenoid 10 circular telegram in proper order, the outage, magnet 9 can constantly drive support piece 3, the brush is along positive direction rotary motion, the brush constantly cleans the dust on the air-out frame 2, the dust that brushes off blows off under the effect of fan. Meanwhile, the screw 5 continuously rotates along with the support member 3, the nut 6 on the screw 5 is constrained by the limiting member, cannot rotate along with the screw 5, and only moves upwards along the screw 5 to drive the lifting cover plate 4 to ascend, after the limiting member leaves the limiting groove 81, the nut 6 is not constrained by the limiting member any more, and along with the rotation of the screw 5, the lifting cover plate 4 is in an open state and continuously rotates. When the device is closed, reverse current is sequentially conducted to the electromagnetic coils 10, the supporting piece 3 rotates reversely, the lifting cover plate 4 moves downwards, when the limiting piece reaches the bottom end of the limiting groove 81, beads of the bead screws 7 touch the travel switch 13, the electromagnetic coils 10 are powered off, the supporting piece 3 stops rotating, and the lifting cover plate 4 also returns to the initial state.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims (14)

1. An apparatus having a duct, comprising:

the fan air conditioner comprises a main body structure (1), wherein a fan is arranged in the main body structure, and an air outlet frame (2) is arranged on the main body structure;

the cleaning assembly is arranged in the main body structure (1), comprises a supporting piece (3) and a brush arranged on the supporting piece (3), the brush is in contact with the air outlet frame (2), and the supporting piece (3) is suitable for rotating under the driving of the driving assembly.

2. The apparatus having a duct according to claim 1, wherein the drive assembly comprises:

a plurality of electromagnetic coils (10) provided in the circumferential direction of the main body structure (1);

a magnet (9) provided on the support (3).

3. The apparatus with the air duct according to claim 2, wherein the main body structure (1) comprises a main body part (101) and a top cover plate (102) connected to the top end of the main body part (101), an air outlet channel (1021) is formed on the top cover plate (102), and the air outlet frame (2) and the electromagnetic coil (10) are arranged on the top cover plate (102).

4. The apparatus with the air duct according to any one of claims 1 to 3, further comprising a lifting cover plate (4) arranged above the air-out frame (2) and being capable of lifting under the driving of the driving assembly, and having an initial state in which the cover is arranged on the main body structure (1) and an open state in which a gap is formed between the cover and the air-out frame (2).

5. The apparatus with an air duct according to claim 4, characterized in that the drive assembly further comprises a transmission mechanism adapted to convert a rotary movement of the support (3) into a lifting movement of the lifting cover (4).

6. Apparatus with an air duct according to claim 5, characterized in that a support (12) is provided in the main structure (1), the support (3) being rotatably provided on the support (12), the transmission mechanism comprising:

the lead screw (5) is fixedly connected with the supporting piece (3);

the nut (6) is arranged on the lead screw (5), and the nut (6) is fixedly connected with the lifting cover plate (4);

and the limiting structure is connected with the nut (6) and is used for limiting the rotation of the nut (6) to enable the nut (6) to move up and down along the screw rod (5).

7. The equipment with the air duct according to claim 6, wherein a limiting hole is formed in the bracket (12), and one end of the lead screw (5) is arranged in the limiting hole.

8. The device with the air duct according to claim 7, wherein a bearing (11) is arranged outside one end of the screw rod (5), and the bearing (11) is positioned in the limiting hole.

9. The apparatus having an air chute of claim 6 wherein the retaining structure comprises:

the fixing piece (8) is fixedly connected to the lower side of the air outlet frame (2), and a limiting groove (81) extending in the vertical direction is formed in the fixing piece (8);

one end of the limiting part is fixedly connected with the nut (6), and the other end of the limiting part is embedded in the limiting groove (81).

10. The apparatus with an air duct according to claim 9, characterized in that the retaining member is a wave ball screw (7).

11. The apparatus with an air duct according to claim 9, wherein the lifting cover (4) is in the open state when the limiting member is higher than the limiting groove (81).

12. The apparatus with the air duct according to claim 11, wherein a travel switch (13) is disposed at a bottom end of the limiting groove (81), the travel switch (13) is disposed in a circuit for supplying power to the driving assembly, and when the limiting member is disposed at the bottom end of the limiting groove (81), the lifting cover plate (4) is in the initial state.

13. The apparatus with an air duct according to any one of claims 6 to 12, characterized in that the lifting cover plate (4) comprises a body portion (41), a sleeve portion (42), the sleeve portion (42) being adapted to pass through the mounting hole (21) on the air-out frame (2) and being fixedly connected with the nut (6), the sleeve portion (42) being adapted to be disposed around the lead screw (5).

14. Device with air duct according to claim 13, characterized in that said support (3) comprises a first portion (31) suitable for being fixedly connected with said screw (5), a second portion (32) provided with said brushes, and a bent portion (33) connecting said first portion (31) and said second portion (32), said second portion (32) being arranged higher than said first portion (31), said sleeve portion (42) being located inside said bent portion (33).

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