CN117053259A

CN117053259A - Interior cleaning assembly and have its range hood

Info

Publication number: CN117053259A
Application number: CN202311180412.3A
Authority: CN
Inventors: 任勇; 岑振宙; 冯君
Original assignee: Guangdong Chengyi Technology Co ltd
Current assignee: Guangdong Chengyi Technology Co ltd
Priority date: 2023-09-13
Filing date: 2023-09-13
Publication date: 2023-11-14

Abstract

The invention relates to the technical field of range hoods and discloses an inner cleaning assembly and a range hood with the same, wherein the inner cleaning assembly comprises a panel, a rear plate, an air door plate and a cleaning device, an air suction port is arranged on the panel, and an air collecting cavity is formed between the rear plate and the panel; the air door plate is provided with a shielding surface; the cleaning device is arranged in the wind collecting cavity; the inner cleaning assembly is provided with an air door plate cleaning state and an air collecting cavity inner wall cleaning state, and in the air door plate cleaning state, the air suction inlet is opened, and the cleaning device cleans the shielding surface; in the cleaning state of the inner wall of the wind collecting cavity, the shielding surface shields the wind suction port, and the cleaning device is started to clean the inner wall of the wind collecting cavity; compared with the prior art, the inner cleaning component can not only close the air suction opening after the range hood is shut down after being applied to the range hood, clean the inner wall of the air collection cavity of the range hood, but also clean the shielding surface when the air suction opening is opened, so that the appearance of the panel side of the range hood is kept clean when the shielding surface shields the air suction opening.

Description

Interior cleaning assembly and have its range hood

Technical Field

The invention relates to the technical field of range hoods, in particular to an inner cleaning assembly and a range hood with the same.

Background

The kitchen appliance can quickly exhaust the waste generated by burning the kitchen range and the oil smoke generated in the cooking process and discharge the oil smoke outdoors, thereby reducing pollution and purifying air. When the range hood works, air flow formed by oil smoke flows to the air suction inlet on the panel of the range hood under the action of the smoke exhaust fan, enters the air collection box connected with the air suction inlet through the air suction inlet on the panel, and is finally exhausted from the smoke exhaust air duct under the action of the smoke exhaust fan in the air collection box. After the range hood works for a long time, the mixture of oil and water in the oil smoke can adhere and accumulate on the inner cavity wall surface of the air collecting box of the range hood, and when dust in the external air enters the air collecting box through the air suction inlet on the panel, the dust and the mixture of the oil and the water on the inner cavity wall surface of the air collecting box are mixed together to form dirt attached to the inner cavity wall surface of the air collecting box and the shell of the smoke exhaust fan. The dirt viscosity that oil, water and dust formed is great, adheres to on the inner chamber wall of collection bellows and exhaust fan on, hardly from the inner chamber wall of collection bellows and exhaust fan's casing drip, when the dirt accumulation volume is more, can influence the purifying effect of range hood, and the user need dismantle the range hood just can thoroughly clear up the dirt to these dirt are also difficult to clear up.

Disclosure of Invention

The invention aims to provide an internal cleaning assembly and a range hood with the same, which are used for solving the technical problems.

An internal cleaning assembly for a range hood, comprising:

a panel on which an air suction port is provided;

the rear plate is arranged corresponding to the panel, a wind collecting cavity is formed between the rear plate and the panel, and a guide rail is arranged in the wind collecting cavity;

the air door plate is connected to the guide rail in a sliding manner and is provided with a shielding surface for shielding the air suction port and forming the appearance surface of the panel;

the cleaning device is arranged in the wind collecting cavity;

the inner cleaning assembly is provided with an air door plate cleaning state and an air collecting cavity inner wall cleaning state, in the air door plate cleaning state, a shielding and blocking surface of the air door plate faces to the cleaning device, the air suction inlet is opened, and the cleaning device cleans the shielding and blocking surface; in the cleaning state of the inner wall of the wind collecting cavity, the shielding surface of the wind door plate shields the wind suction port, and the cleaning device is started to clean one side of the wind door plate, which faces the rear plate, and the inner side of the rear plate.

According to an embodiment of the invention, the cleaning device further comprises a driving device, the driving device is connected with the air door plate, the air door plate is provided with a first position and a second position on the guide rail, the shielding surface of the air door plate shields the air suction opening, the air suction opening is closed, the shielding surface of the air door plate faces the cleaning device, the air suction opening is opened, and the driving device drives the air door plate to move between the first position and the second position.

According to one embodiment of the invention, the guide rail is provided with an included angle connecting the first position and the second position, and the included angle enables the air door plate to be far away from the panel and form an included angle of 15-45 degrees with the inner wall surface of the panel when the air door plate is in the second position.

According to an embodiment of the invention, the inner cleaning assembly is switched from the air door plate cleaning state to the air suction opening closing state when the air door plate moves from the second position to the first position on the guide rail, the cleaning device is closed at the moment, and the inner cleaning assembly is switched from the air suction opening closing state to the air collecting cavity inner wall cleaning state when the cleaning device is opened.

According to an embodiment of the present invention, a cleaning apparatus includes a brush assembly; or/and the cleaning device comprises a spraying component, and in the cleaning state of the air door plate, the spraying component operates, and a smoke exhaust fan of the range hood operates.

According to an embodiment of the invention, the air guide device further comprises a normal air supply state, the air guide plate is provided with an air guide opening, the air guide plate is provided with a third position on the guide rail, and the air guide opening corresponds to the air suction inlet in the third position, and the air suction inlet is opened.

According to an embodiment of the invention, the cleaning device comprises a brush assembly, the brush assembly comprises a rotary brush facing the shielding surface, the rotary brush is provided with an elastic brush head, and the brush head is elastically contacted with and cleans the shielding surface; or/and the cleaning device comprises a spraying assembly, the spraying assembly comprises a water supply pipeline and cleaning nozzles facing the shielding surface, the water supply pipeline is horizontally arranged along the shielding surface, and a plurality of cleaning nozzles are arranged along the water supply pipeline at intervals.

The utility model provides a range hood, adopts foretell interior subassembly that washs, still includes exhaust fan, exhaust fan locates the collection wind intracavity, and when the face of shielding of air door plant sheltered from the inlet scoop, exhaust fan closed, and when the face of shielding of air door plant left the inlet scoop, the inlet scoop was opened, exhaust fan operation.

According to one embodiment of the invention, the device further comprises a PM2.5 detection module capable of detecting the ambient air quality in real time and a display control device capable of displaying detection data of the PM2.5 detection module, wherein the inner cleaning assembly, the smoke exhaust fan and the PM2.5 detection module are electrically connected with the display control device, when the detection value of the PM2.5 detection module reaches a set range, the display control device sends a starting instruction to the smoke exhaust fan and the inner cleaning assembly, the air door plate opens the air suction port, and the smoke exhaust fan enters an operation state; or when the detection value of the PM2.5 detection module reaches the set range, the display control device sends a starting instruction to the smoke exhaust fan and the inner cleaning assembly, the inner cleaning assembly enters a fan plate cleaning state, and the smoke exhaust fan enters an operating state.

According to one embodiment of the invention, the bottom of the air collecting cavity is provided with an oil leakage hole and an oil cup for receiving oil stains flowing out of the oil leakage hole, and a liquid level sensor is arranged in the oil cup; when the inner cleaning component is in the cleaning state of the inner wall of the air collecting cavity, the cleaning device adjusts the spraying time according to the oil dirt amount collected in the oil cup, and the cleaning device stops running after reaching the spraying time; when the inner cleaning component is in the air door plate cleaning state, the cleaning device stops running after working for 1-5 min.

Compared with the prior art, the inner cleaning assembly has the following advantages:

after the inner cleaning component is applied to the range hood, the air suction opening can be closed after the range hood is shut down, the inner wall of the air collecting cavity of the range hood can be cleaned, and the shielding surface shielding the air suction opening can be cleaned when the air suction opening is opened, so that the appearance of the panel side of the range hood is kept clean when the shielding surface shields the air suction opening.

Drawings

Fig. 1 is a schematic view showing a structure of a range hood having an inner cleaning assembly of the present invention with a rear plate removed;

FIG. 2 is an exploded view of the guide rail, damper plate and drive assembly of the inner cleaning assembly of the present invention;

fig. 3 is a front view of a range hood having an inner cleaning assembly of the present invention;

FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3;

FIG. 5 is an enlarged view of part of B in FIG. 4;

fig. 6 is an exploded view of one embodiment of a brush assembly of a range hood according to the present invention;

fig. 7 is an exploded view of another embodiment of a brush assembly of a range hood according to the present invention;

in the figure: 1. panel, 11. Suction inlet, 2. Rear plate, 3. Guide rail, 31. First forward section, 32. Second forward section, 4. Air door plate, 41. Air guide opening, 42. Bulge section, 43. Gasket, 44. Bearing, 45. Shock absorber, 5. Cleaning device, 51. Rotating brush, 54. Fixed bracket, 55. Brush rotating drive, 59. Brush up-down drive structure, 52. Water supply pipe, 53. Cleaning nozzle, 56. Bracket assembly, 57. Rotating drive structure, 571. Rotating drive motor, 572. First connecting rod, 573. Second connecting rod, 574. Third connecting rod, 58. Up-down drive structure, 6. Drive device, 7. Smoke exhaust fan, 8.PM2.5 detection module, 9. Display control device, 10. Oil cup

The implementation and advantages of the functions of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

Various embodiments of the invention are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the invention. That is, in some embodiments of the invention, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.

It should be noted that all directional indicators (such as up, down, left and right, front and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the invention solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

For a further understanding of the nature, features, and efficacy of the present invention, the following examples are set forth in order to provide a further understanding of the invention, and are intended to be described in connection with the accompanying drawings:

the invention discloses an inner cleaning component which is used for a range hood. Referring to fig. 1, the inner cleaning assembly disclosed by the invention comprises a panel 1, a rear plate 2, an air door plate 4 and a cleaning device 5, wherein an air suction port 11 is arranged on the panel 1; the rear plate 2 is arranged corresponding to the panel 1, a wind collecting cavity is formed between the rear plate 2 and the panel 1, the air suction inlet 11 is communicated with the wind collecting cavity, and a guide rail 3 is arranged in the wind collecting cavity; the air door plate 4 is connected to the guide rail 3 in a sliding manner, and the air door plate 4 is provided with a shielding surface which shields the air suction port 11 and forms the appearance surface of the panel 1; the cleaning device 5 is arranged in the wind collecting cavity; the inner cleaning assembly is provided with an air door plate cleaning state and an air collecting cavity inner wall cleaning state, in the air door plate cleaning state, the shielding surface of the air door plate 4 faces the cleaning device 5, the air suction inlet 11 is opened, and the cleaning device 5 cleans the shielding surface; in the cleaning state of the inner wall of the wind collecting cavity, the shielding surface of the air door plate 4 shields the wind inlet 11, and the cleaning device 5 is started to clean one side of the air door plate 4 facing the rear plate 2 and the inner side of the rear plate 2. When the inner cleaning component is applied to the range hood, the smoke exhaust fan of the range hood is arranged in the air collecting cavity, after the range hood is started, the smoke exhaust fan is started, the air door plate 4 opens the air suction opening 11, external oil smoke can enter the air collecting cavity through the air suction opening 11 under the action of the smoke exhaust fan and then is discharged from the air collecting cavity by the smoke exhaust fan, when the shielding surface of the air door plate 4 needs to be cleaned, the inner cleaning component enters the cleaning state of the air door plate, at the moment, the shielding surface of the air door plate 4 faces the cleaning device 5, the cleaning device 5 is started and cleans the shielding surface of the air door plate 4, and the shielding surface is cleaned, so that after the range hood is closed and the smoke exhaust fan is shut down, when the air door plate 4 moves on the guide rail 3 and shields the air suction opening 11, the shielding surface and the corresponding part of the air suction opening 11 form the appearance surface of the panel 1, and the appearance surface of the panel side of the range hood can be kept clean as the shielding surface seen from the user side is clean; after the air suction inlet is closed, a user can start the cleaning state of the inner wall of the air collection cavity according to the requirements, the cleaning device 5 is started to clean one side of the air door plate 4 facing the rear plate 2 and the inner side of the rear plate 2, and the inner wall of the air collection cavity is cleaned, so that the self-cleaning function of the range hood is realized.

Because the air door plate 4 is positioned in the air collecting cavity, the panel 1 has a thickness, when the air door plate 4 closes the air suction opening 11, even if the shielding surface of the air door plate 4 is closely attached to the inner wall surface of the panel 1, the air suction opening 11 forms a groove in the thickness direction of the panel 1, so that the outer side surface of the panel 1 is not a complete plane, and the flatness of the appearance of the panel side of the range hood is affected; and the oil smoke is after the inlet scoop 11, there is the mixture of oil and water to adhere to on the internal wall surface of inlet scoop 11, covers the groove content that forms behind the face shelter from inlet scoop 11 and easily produces the dirt, inconvenient user clearance. Referring to fig. 2 to 5, in order to solve the problem, in the inner cleaning assembly of the present invention, the shielding surface is provided with a bulge portion 42 protruding toward the air suction opening 11, the bulge portion 42 is adapted to the air suction opening 11, when the shielding surface of the damper plate 4 shields the air suction opening 11, the bulge portion 42 extends into the air suction opening 11 and the top surface of the bulge portion 42 is flush with the outer side surface of the panel 1, when the damper plate 4 closes the air suction opening 11, the bulge portion 42 on the shielding surface extends into the air suction opening 11 and shields the air suction opening 11, after the bulge portion 42 extends into the air suction opening 11, the top surface of the bulge portion 42 is flush with the outer side surface of the panel 1, and the top surface of the bulge portion 42 is flush with the outer side surface of the panel 1, so that a user can clean the panel 1 of the range hood conveniently.

Referring to fig. 5, in the inner cleaning assembly of the present invention, a deformable gasket 43 is provided on a sidewall of the bulge 42; when the damper plate 4 closes the air suction port 11, the damper plate 4 is tightly attached to the panel 1, the bulge 42 extends into the air suction port 11, the top surface of the bulge 42 is flush with the outer side surface of the panel 1, and the gasket 43 on the side wall of the bulge 42 presses together with the side wall surface of the air suction port 11 and seals the air suction port 11, so that the bulge 42 seals the air suction port 11 tightly.

Referring to fig. 1, the inner cleaning assembly of the present invention further includes a driving device 6, the driving device 6 is connected to the damper panel 4, the damper panel 4 has a first position and a second position on the guide rail 3, the shielding surface of the damper panel 4 shields the air suction opening 11, the air suction opening 11 is closed, the shielding surface of the damper panel 4 faces the cleaning device 5, the air suction opening 11 is opened, and the driving device 6 drives the damper panel 4 to move between the first position and the second position. In the inner cleaning assembly, the driving device 6 drives the air door plate 4 to move on the guide rail 3, when the air door plate 4 moves to the first position, the shielding surface of the air door plate 4 shields the air suction opening 11, the air suction opening 11 is closed, when the air door plate 4 moves to the second position, the air suction opening 11 is opened, the shielding surface of the air door plate 4 faces the cleaning device 5, and when the cleaning device 5 is started, the shielding surface of the air door plate 4 can be cleaned. When the cleaning device is applied to a range hood, under the condition that the range hood is shut down, the air door plate 4 is in a first position on the guide rail 3, the air suction inlet 11 is in a closed state, after the range hood is started up, the driving device 6 drives the air door plate 4 to move on the guide rail 3, the air door plate 4 opens the air suction inlet 11, when a smoke exhaust fan of the range hood is started, external oil smoke can enter the air collecting cavity through the air suction inlet 11 under the action of the smoke exhaust fan, when a user needs to clean a shielding surface of the air door plate 4, the internal cleaning component enters the air door plate cleaning state, the driving device 6 drives the air door plate 4 to move on the guide rail 3 and enables the air door plate 4 to move to a second position, the shielding surface of the air door plate 4 faces the cleaning device 5, and the cleaning device 5 starts and cleans the shielding surface of the air door plate 4. When the inner cleaning component enters the air door plate cleaning state, the air suction opening 11 is opened, and the smoke exhaust fan of the range hood can still be in an operating state at the moment, after the range hood works, the driving device 6 drives the air door plate 4 to return to the first position, the air suction opening 11 is shielded by the clean shielding surface, and the appearance surface of the panel 1 seen from the user side is clean and tidy.

The inner cleaning component of the invention is characterized in that the guide rail 3 is provided with an included angle for connecting the first position and the second position, and the included angle enables the air door plate 4 to be far away from the panel 1 and form an included angle of 15-45 degrees with the inner wall surface of the panel 1 when in the second position. When the air door plate 4 is positioned at the first position and the second position on the guide rail 3, the air door plate 4 is positioned at different planes, and it is easy to know that when the air door plate 4 is positioned at the first position on the guide rail 3, the shielding surface of the air door plate 4 shields the air inlet 11, the air door plate 4 needs to be closely attached to the inner wall surface of the panel 1, the shielding surface can seal the air inlet 11, and when the air door plate 4 is positioned at the second position on the guide rail 3, the shielding surface of the air door plate 4 faces the cleaning device 5, and the cleaning device 5 is arranged between the air door plate 4 and the panel 1; therefore, the first position of the air door plate 4 on the guide rail 3 is a plane close to the panel 1, the second position of the air door plate 4 on the guide rail 3 is a plane inclined relative to the direction of the panel 1 and the back plate 2, when the air door plate 4 is in the second position on the guide rail 3, a containing cavity is formed between the air door plate 4 and the inner wall surface of the panel 1, the cleaning device 5 is positioned in the containing cavity, and the cleaning device 5 cleans the shielding surface. It should be understood that when the damper plate 4 is at the second position on the guide rail 3, the damper plate 4 is obliquely arranged, the lower end of the damper plate 4 extends towards the direction of the rear plate 2, the inclination angle of the damper plate 4 is too large, and when the lower end of the damper plate contacts with the rear plate 2, the mixture of oil and water on the smoke exhaust fan can be prevented from flowing towards the bottom of the wind collecting cavity; when the inclination angle of the damper plate 4 is too small, the clearance between the damper plate 4 and the panel 1 is insufficient to accommodate the cleaning device 5. Therefore, when the air door plate 4 is arranged at the second position, the air door plate 4 is far away from the panel 1 and forms an included angle of 15-45 degrees with the inner wall surface of the panel 1, so that the gap between the air door plate 4 and the inner wall surface of the panel 1 is enough to accommodate the cleaning device 5, and when the cleaning device 5 is arranged between the air door plate 4 and the panel 1, the gap is reserved between the cleaning device 5 and the panel 1, and meanwhile, the air door plate 4 cannot influence the mixture of oil and water on the smoke exhaust fan in the air collecting cavity to drop towards the bottom of the air collecting cavity.

Referring to fig. 2, the inner cleaning assembly of the present invention includes a guide rail 3 including a first direction section 31 and a second direction section 32, wherein a first position of a damper plate 4 on the guide rail 3 is located on the first direction section 31, a second position of the damper plate 4 on the guide rail 3 is located on the second direction section 32, and a bulge 42 on a shielding surface extends from the suction inlet 11 or is staggered with the suction inlet 11 when the damper plate 4 slides on the first direction section 31; when the shutter plate 4 moves to the second position on the second section 32 of the guide rail 3, the shutter plate 4 is inclined, and the cleaning device 5 cleans the bulge 42. When the first direction section 31 and the second direction section 32 are positioned on different planes, a gap exists between the second direction section 32 and the inner wall surface of the panel 1 when the first direction section 31 is close to the inner wall surface of the panel 1, the first position is arranged on the first direction section 31, the second position is arranged on the second direction section 32, when the air door plate 4 slides on the first direction section 31, the bulge part 42 on the shielding surface extends out of the air suction inlet 11 to close the air suction inlet 11, or the bulge part 42 on the shielding surface is staggered with the air suction inlet 11 to open the air suction inlet 11; when the driving device 6 drives the damper plate 4 to move along the guide rail 3 and move from the first direction section 31 to the second direction section 32, when the damper plate 4 moves to the second position on the second direction section 32, the damper plate 4 is inclined, a containing cavity capable of containing the cleaning device 5 is formed between the damper plate 4 and the panel 1, and when the cleaning device 5 is started, the cleaning device 5 can clean the shielding surface and the bulge part 42 on the shielding surface. It should be understood that when the damper plate 4 moves to the second position on the second direction section 32, the whole damper plate 4 moves below the air suction inlet 11, at this time, the air suction inlet 11 is still in an open state, and when the smoke exhaust fan of the range hood is started, external air can still enter the air collection cavity through the air suction inlet 11 and then be exhausted by the smoke exhaust fan; that is, when the damper plate 4 is located at the second position, the cleaning device 5 does not affect the operation of the range hood when cleaning the shielding surface of the damper plate 4, and after the exhaust fan is turned off, the driving device 6 just can convey the cleaned damper plate 4 to the first position to close the air suction port 11, and the clean bulge portion 42 extends out from the air suction port 11, so that the outer side of the panel 1 is kept clean and tidy.

Referring to fig. 1, in the switch air intake assembly of the present invention, a first bracket is transversely disposed in an air collecting cavity, a driving device 6 is disposed on the first bracket, and a driving end of the driving device 6 is fixedly connected to a lower end of an air door plate 4 and can drive the air door plate 4 to slide along a guide rail 3; bearings 44 capable of sliding on the guide rail 3 are arranged on two sides of the air door plate 4, and shock absorbing members 45 are sleeved on the bearings 44. When the driving device 6 is started, the driving device 6 drives the air door plate 4 to slide along the guide rail 3, when the air door plate 4 slides along the guide rail 3, the bearings 44 on two sides of the air door plate 4 slide along the guide rail 3, so that the friction force between the air door plate 4 and the guide rail 3 can be reduced, and as the shock absorbing piece 45 is arranged on the bearings 44, in the process that the bearings 44 slide along the guide rail 3, the shock absorbing piece 45 can reduce the shock generated when the bearings 44 slide along the guide rail 3, so that the driving device 6 drives the air door plate 4 to slide along the guide rail 3 more stably.

In some embodiments, the driving device 6 adopts a driving motor, an output end of the driving motor is connected with an output gear, the output gear is meshed with a rack, the rack is connected with the air door plate 4, when the driving motor is started, the output end of the driving motor drives the output gear to rotate, the output gear is meshed with the rack and drives the rack to move up and down, and then the air door plate 4 slides along the guide rail 3.

In still other embodiments, the driving device 6 adopts a driving motor, an output end of the driving motor is connected with a screw rod, a screw rod nut is sleeved on the screw rod, the screw rod nut is connected with the air door plate 4, and when the driving motor is started, the output end of the driving motor drives the screw rod to rotate, the screw rod nut slides up and down along the screw rod, and then the air door plate 4 slides along the guide rail 3.

Referring to fig. 1 and 2, in the illustrated embodiment, the driving device 6 is an electric push rod, the driving end of the electric push rod is connected to the damper panel 4, and when the electric push rod is started, the electric push rod drives the damper panel 4 to slide along the guide rail 3.

The inner cleaning component of the invention also has a state of closing the air suction port, when the air door plate 4 moves from the second position to the first position on the guide rail 3, the inner cleaning component is switched from the air door plate cleaning state to the state of closing the air suction port, at the moment, the cleaning device 5 is closed, and when the cleaning device 5 is opened, the inner cleaning component is switched from the state of closing the air suction port to the cleaning state of the inner wall of the air collecting cavity. When being applied to range hood, when exhaust fan shuts down, interior cleaning element gets into the state of closing the inlet scoop, at this moment belt cleaning device 5 is closed, after the air door board 4 moves to the first position and the shielding face of air door board 4 shelters from inlet scoop 11, inlet scoop 11 is closed, interior cleaning element shuts down and be in the state of closing the inlet scoop this moment, when needs cleaning the collection wind intracavity wall, the user can start belt cleaning device 5 under the state of closing the inlet scoop, make interior cleaning element switch to collection wind intracavity wall cleaning state by the state of closing the inlet scoop, under the state of closing the inlet scoop, belt cleaning device 5 accomplishes the washing to collection wind intracavity wall, sewage when can avoid wasing collection wind intracavity wall flows to panel 1's outside along inlet scoop 11, influence panel 1's outward appearance.

In the inner cleaning assembly of the invention, when the air door plate 4 is in the first position on the guide rail 3, the inner cleaning assembly can enter a cleaning state of the inner wall of the wind collecting cavity, and the cleaning device 5 is started to clean one side of the air door plate 4 facing the rear plate 2 and the inner side of the rear plate 2. When the cleaning device is applied to the range hood, after the fume extractor is shut down, if a user needs to clean the air collecting cavity, the inner cleaning component enters the cleaning state of the inner wall of the air collecting cavity, the air door plate 4 closes the air suction opening, the cleaning device 5 is started, the cleaning device cleans the inner wall of the air collecting cavity in the air collecting cavity, the air door plate 4 faces to one side of the rear plate 2 and the inner side of the rear plate 2, so that the mixture of oil and water attached to the inner wall of the air collecting cavity is cleaned, and the inner cleaning component can automatically clean the air collecting cavity of the range hood.

Referring to fig. 1, in some embodiments, the cleaning apparatus 5 of the inner cleaning assembly of the present invention includes a spray assembly that operates in a damper panel cleaning state and a smoke exhaust fan of a range hood operates. The spray assembly includes a water supply pipe 52 and cleaning nozzles 53 facing the shield surface, the water supply pipe 52 being horizontally disposed along the shield surface, and a plurality of cleaning nozzles 53 being spaced along the water supply pipe 52. When the shutter plate 4 moves to the second position on the guide rail 3, the shielding surface of the shutter plate 4 faces the spraying assembly, the spraying assembly is started, the cleaning medium is introduced into the water supply pipeline 52, enters the cleaning nozzle 53 from the water supply pipeline 52, is sprayed out from the cleaning nozzle 53, and the cleaning nozzle 53 sprays the cleaning medium towards the shielding surface to clean the shielding surface. When the air door plate 4 moves to the second position on the guide rail 3, the air suction opening 11 is opened, at this moment, a smoke exhaust fan of the smoke exhaust ventilator operates, a gap is formed between the air suction opening 11, when the spraying component is started and the shielding surface is cleaned, the cleaning nozzle 53 of the spraying component sprays cleaning media on the shielding surface, the shielding surface is flushed by the cleaning media to clean greasy dirt on the shielding surface, when the cleaning nozzle 53 sprays the cleaning media on the shielding surface, splash can be generated when the cleaning media are sprayed on the shielding surface, the splash can splash from the gap between the shielding surface and the inner wall surface of the panel 1, at this moment, due to the operation of the smoke exhaust fan, the smoke exhaust fan forms negative pressure at the air suction opening 11, the negative pressure sucks air outside the panel 1 into the wind collecting cavity through the air suction opening 11, so that the splash generated by the cleaning media when the cleaning nozzle 53 washes the shielding surface enters the gap between the inner wall surface of the panel 1 and the shielding surface can fall into the wind collecting cavity under the action of the air flow entering through the air suction opening 11, the splash can not splash can be splashed outside the air suction opening 11, and the food can be prevented from falling into the cooking medium from the air suction opening 11.

Referring to fig. 1, the inner cleaning assembly of the present invention further includes a bracket assembly 56 disposed on an inner wall of the wind collecting chamber, the water supply pipe 52 is disposed on the bracket assembly 56, and a rotation driving structure 57 capable of driving the water supply pipe 52 to rotate is disposed on the bracket assembly 56; the inner wall of the wind collecting cavity is also provided with a guide structure capable of sliding the bracket component 56, and the guide structure is provided with an up-down driving structure 58 for driving the bracket component 56 to slide along the guide structure. When the switch air suction port assembly is applied to a range hood, when the range hood works, the driving device 6 drives the air door plate 4 to move on the guide rail 3, so that the air door plate 4 moves to the second directional section 32 of the guide rail 3 and is positioned at a second position, at the moment, the air door plate 4 is positioned below the air suction port 11, the air suction port 11 is opened, the smoke exhaust fan is started, the air door plate 4 is obliquely arranged relative to the panel 1, the spraying assembly is positioned between the air door plate 4 and the panel 1, the position is set to be a first cleaning position of the spraying assembly, after the smoke exhaust fan of the range hood is started, external smoke starts to enter the wind collecting cavity through the air suction port 11, the smoke entering the wind collecting cavity flows to the smoke exhaust fan of the range hood and is discharged from the wind collecting cavity through the smoke exhaust fan, the upper and lower driving structure 58 does not operate in the first cleaning position in the process of starting the smoke exhaust fan, externally provided cleaning medium enters the water supply pipeline 52 and is conveyed to the cleaning nozzle 53 through the water supply pipeline 52, the cleaning nozzle 53 is driven to rotate by the driving structure 57, the cleaning nozzle 53 rotates along with the water supply pipeline 52 and the water supply pipeline 52 rotates 360 to clean the cleaning medium of the cleaning nozzle 4, and the cleaning medium is carried out by the cleaning medium of the cleaning nozzle plate; after the smoke exhaust fan is turned off, the driving device 6 drives the air door plate 4 to move on the guide rail 3, so that the air door plate 4 moves from the second direction section 32 of the guide rail to the first direction section 31 and moves to the first position, the shielding surface on the air door plate 4 shields the air suction inlet 11, the bulge part 42 stretches into the air suction inlet 11 and closes the air suction inlet 11, the cleaning device 5 is started at this time, the up-down driving structure 58 drives the support assembly 56 to move along the guiding structure on the inner wall of the air collecting cavity, meanwhile, the rotation driving structure 57 starts to drive the water supply pipeline 52 to rotate around the support assembly 56, the water supply pipeline 52 drives the cleaning nozzle 53 on the air door plate to rotate, and when the cleaning medium is conveyed to the cleaning nozzle 53 through the water supply pipeline 52, the cleaning nozzle 53 sprays the cleaning medium to a spraying area.

When the inner cleaning component is in the air door plate cleaning state, the spraying area of the cleaning nozzle 53 at least comprises a first spraying area corresponding to the inner wall surface of the panel 1, after the cleaning nozzle 53 sprays the cleaning medium into the first spraying area, the cleaning medium cleans the inner wall surface of the panel 1 of the range hood, so that the mixture of oil and water attached to the inner wall of the panel 1 of the range hood is cleaned, the wall surface of the air collecting cavity of the range hood and the oil dirt attached to the inner wall surface of the panel 1 can be automatically cleaned, the air collecting cavity of the range hood is kept clean, the range hood has a good cleaning effect, and the accumulated oil dirt in the air collecting cavity of the range hood can be cleaned without dismantling the range hood by a user.

The spraying region of the cleaning nozzle 53 further includes a second spraying region corresponding to the inner wall surface of the rear plate 2 when the inner cleaning assembly is in the air door panel cleaning state. When the inner cleaning component is applied to the range hood, when the range hood works, external oil smoke enters the air collecting cavity through the air suction inlet 11 on the panel 1 of the range hood and is then discharged out of the air collecting cavity; after the oil smoke enters the air collecting cavity, the oil smoke flows towards the air inlet of the smoke discharging fan under the action of the smoke discharging fan of the range hood, part of air flow formed by the oil smoke directly enters the shell of the smoke discharging fan through the air inlet of the smoke discharging fan in the flowing process of the oil smoke discharging fan, the other part of the air flow can be flushed onto the rear plate 2, then flows towards the air inlet of the smoke discharging fan along the rear plate 2, then enters the shell of the smoke discharging fan, and finally is discharged out of the air collecting cavity by the smoke discharging fan. In the whole smoke discharging process, after the oil smoke enters the air collecting cavity through the air suction inlet 11, the oil smoke flows to the smoke discharging fan, and after the smoke discharging fan is positioned above the air suction inlet 11, the oil smoke flows upwards after entering the air collecting cavity through the air suction inlet 11, so that a mixture of oil and water formed by the oil smoke in the air collecting cavity in the smoke discharging process mainly adheres to the part of the inner wall surface of the rear plate 2 positioned above the air suction inlet 11 and the part of the inner wall surface of the panel 1 positioned above the air suction inlet 11, when the mixture of oil and water is accumulated to a certain amount on the part of the inner wall surface of the rear plate 2 positioned above the air suction inlet 11 and the part of the inner wall surface of the panel 1 positioned above the air suction inlet 11, the mixture of the oil and the water flows to the part of the inner wall surface of the panel 1 positioned below the air suction inlet 11, and the spray nozzle 53 can be cleaned in the whole spray area of the first spray area and the second spray area corresponding to the inner wall surface of the panel 1 and the second spray area.

The switch air suction port assembly is provided with a second cleaning position, the cleaning nozzle 53 is positioned above the air suction port 11 in the second cleaning position, the smoke exhaust fan is turned off at the moment, the air door plate 4 is positioned at the first position, the shielding surface shields the air suction port 11, and the cleaning nozzle 53 rotates by 360 degrees and sprays cleaning media to clean the inner walls of the smoke exhaust fan and the air collecting cavity. After the switch air suction port assembly is applied to a range hood, when the range hood works, an air guide opening 41 on an air door plate 4 corresponds to an air suction port 11, the air suction port 11 is opened, a smoke exhaust fan is started, external oil smoke enters an air collection cavity through the air suction port 11 on a panel 1 and is then discharged out of the air collection cavity by a smoke exhaust fan arranged in the air collection cavity, the smoke exhaust fan is positioned above the air suction port 11, and after the oil smoke enters the air collection cavity, the oil smoke flows to an air inlet of the smoke exhaust fan under the action of the smoke exhaust fan, enters a shell of the smoke exhaust fan, and is discharged out of the air collection cavity by the smoke exhaust fan; in the process of sucking oil smoke by the smoke exhaust fan, the spraying assembly is located at the first cleaning position, a user can start the spraying assembly to enable the spraying assembly to clean the shielding surface on the air door plate 4, when the spraying assembly cleans the shielding surface of the air door plate 4, the operation of the smoke exhaust fan cannot be affected, and after the operation of the smoke exhaust fan is finished, the driving device 6 can just convey the cleaned air door plate 4 to the first direction section 31 of the guide rail 3, the air door plate 4 is enabled to move to the first position, the air suction opening 11 is closed, the clean bulge part 42 extends out from the air suction opening 11, the shielding surface seen from the user side is clean, and the appearance surface of the panel 1 of the smoke exhaust fan can be kept clean and tidy. In the whole smoke discharging process, after the oil smoke enters the air collecting cavity through the air suction inlet 11, the oil smoke flows to the smoke discharging fan, and after the smoke discharging fan is positioned above the air suction inlet 11, the oil smoke flows upwards after entering the air collecting cavity through the air suction inlet 11, so that a mixture of oil and water formed by the oil smoke in the air collecting cavity in the smoke discharging process is mainly adhered to the part of the inner wall surface of the rear plate 2 positioned above the air suction inlet 11, the part of the inner wall surface of the panel 1 positioned above the air suction inlet 11 and the shell of the smoke discharging fan, and when the mixture of oil and water is accumulated to a certain amount on the part of the inner wall surface of the rear plate 2 positioned above the air suction inlet 11, the part of the inner wall surface of the panel 1 positioned above the air suction inlet 11 flows to the part of the inner wall surface of the panel 1 positioned below the air suction inlet 11 along the part of the inner wall surface of the rear plate 2 positioned above the air suction inlet 11; after the smoke exhaust fan is turned off, the spray assembly moves to a second cleaning position, in the second cleaning position, the cleaning nozzle 53 sprays cleaning media and cleans the part of the inner wall surface of the rear plate 2 above the air suction port 11, the part of the inner wall surface of the panel 1 above the air suction port 11 and the mixture of oil and water on the shell of the smoke exhaust fan, the mixture of the cleaned oil and water flows along the part of the inner wall of the air collection cavity above the air suction port 11, and the part of the inner wall surface of the panel 1 above the air suction port 11 flows towards the part of the inner wall surface of the panel 1 below the air suction port 11 until the cleaning nozzle 53 sprays the assembly to complete cleaning operation in the second cleaning position.

According to the switch air suction port assembly, a water supply pipeline 52 of a cleaning nozzle 53 is connected with a water pump, a control valve is arranged on the water supply pipeline 52, the water pump is connected with a water tank for storing cleaning media, a connecting port is arranged between the cleaning nozzle 53 and the water supply pipeline, and a switch valve is arranged at each connecting port. When the cleaning nozzle 53 is operated, the water pump is started, the control valve is opened, the cleaning medium stored in the water tank is pumped into the water supply pipe 52 by the water pump, and the cleaning nozzle 53 sprays the cleaning medium to clean the sprayed area with the opening/closing valve opening the connection port between the cleaning nozzle 53 and the water supply pipe 52.

Referring to fig. 1, in the switch air suction inlet assembly of the present invention, the rotary driving structure 57 includes a rotary driving motor 571, an output shaft is disposed on the rotary driving motor 571, a first connecting rod 572 is connected to the output shaft, a second connecting rod 573 is connected to the water supply pipeline 52, and a third connecting rod 574 is hinged between the first connecting rod 572 and the second connecting rod 573. When the rotation driving structure 57 works, the rotation driving motor 571 is started, the output end of the rotation driving motor 571 drives the first connecting rod 572 to rotate with the end connected with the first connecting rod 572, the end connected with the first connecting rod 572 swings, the first connecting rod 572 drives the third connecting rod 574 to swing, the third connecting rod 574 drives the second connecting rod 573 to swing with the end connected with the second connecting rod 573, the other end of the second connecting rod 573 is connected with the water supply pipeline 52, the other end of the second connecting rod 573 rotates and drives the water supply pipeline 52 to rotate, and the cleaning nozzle 53 rotates along with the water supply pipeline 52.

The opening and closing suction port assembly of the present invention, the bracket assembly 56 comprises a left bracket and a right bracket, the water supply pipe 52 is rotatably connected to the left bracket and the right bracket, the water supply pipe 52 is made of hard material, the rotation driving structure 57 is fixed to the left bracket or the right bracket, and the bracket assembly 56 is disposed above the suction port 11. When the cleaning nozzle 53 is required to move from the first cleaning position to the second cleaning position or from the second cleaning position to the first cleaning position, the up-down driving structure 58 is activated and drives the support assembly 56 to slide along the guiding structure, and the water supply pipeline 52 slides along the guiding structure along with the support assembly 56, so that the cleaning nozzle 53 moves between the first cleaning position and the second cleaning position to clean the corresponding spraying area. The bracket assembly 56 is arranged above the air suction opening 11, namely, after the bracket assembly 56 is slidably connected with the guide structure, the bracket assembly 56 is not contacted with the inner wall surface of the panel 1, a gap exists between the bracket assembly 56 and the air suction opening 11, the gap enables the water supply pipeline 52 not to be contacted with the inner wall surface of the panel 1, the liquid outlet hole of the cleaning nozzle 53 is prevented from being blocked, and when the cleaning nozzle 53 sprays cleaning medium to the inner wall surface of the panel 1, a flowing space is reserved for the cleaning medium.

Referring to fig. 4 and 5, in other embodiments, the cleaning device 5 includes a brush assembly including a rotating brush 51 facing the shielding surface, the rotating brush 51 having a flexible brush head, the brush head being in flexible contact with and cleaning the shielding surface. When the damper plate 4 moves to the second position on the guide rail 3, the shielding surface of the damper plate 4 faces the cleaning device 5, the cleaning device 5 is started, the rotary brush 51 rotates, and the brush head elastically contacts and cleans the shielding surface to clean the shielding surface.

Referring to fig. 4, 5 and 7, in the illustrated embodiment, the brush assembly further includes a fixing bracket 54 disposed in the wind collecting chamber, the rotating brush 51 is disposed on the fixing bracket 54, and a brush rotation driving member 55 capable of driving the rotating brush 51 to rotate relative to the fixing bracket 54 is disposed on the fixing bracket 54. After the damper plate 4 moves onto the second directional section 32 of the guide rail 3 along the guide rail 3, the damper plate 4 is obliquely arranged, the shielding surface on the damper plate 4 and the bulge part 42 on the shielding surface face towards the cleaning device 5, the cleaning device 5 is started, the brush rotation driving part 55 drives the rotary brush 51 to rotate on the fixed support 54, the rotary brush 51 acts on the shielding surface of the damper plate 4, and the shielding surface of the damper plate 4 is cleaned by the rotary brush 51.

Referring to fig. 6, in some embodiments, the rotary brush 51 of the brush assembly includes a brush shaft, and left and right bristles disposed at both sides of the brush shaft, the left and right bristles being disposed symmetrically with respect to the brush shaft, the left and right bristles being vertically distributed when the cleaning device 5 is not started, the brush rotation driving member 55 being started and driving the rotary brush 51 to rotate around the fixing bracket 54 when the cleaning device 5 is started, the rotary brush 51 pressing the wall surface of the accommodating chamber, the left and right bristles rubbing against the cleaning panel 1 being disposed at the inner wall surface of the accommodating chamber portion and the shielding surface of the air door plate 4.

Referring to fig. 6, in another embodiment, the brush assembly further includes a brush up-and-down driving structure 59, and the driving end of the brush up-and-down driving structure 59 is connected to the fixing bracket 54 for driving the fixing bracket 54 to move in the wind collecting chamber. Before the air door plate 4 moves onto the second section 32 of the guide rail 3, the brush up-down driving structure 59 moves the fixed bracket 54 to the lower part of the air suction inlet 11, and after the air door plate 4 moves onto the second section 32 of the guide rail 3, the rotary brush 51 is positioned in the accommodating cavity formed by the air door plate 4 and the panel 1; after the damper plate 4 moves onto the first section of the guide rail 3 and closes the air suction port 11, the driving fixing bracket 54 of the brush up-down driving structure 59 moves in the air collecting cavity to clean the inner cavity of the air collecting cavity.

Referring to fig. 7, in the illustrated embodiment, the rotary brush 51 of the brush assembly includes a rotating shaft and scrapers uniformly distributed on the rotating shaft, and when the brush assembly is started, the brush rotation driving member 55 starts and drives the rotary brush 51 to rotate around the fixing bracket 54, and the scrapers squeeze the wall surface of the accommodating cavity to scrape the oil dirt on the shielding surface of the air door plate 4 downwards, so as to clean the shielding surface of the air door plate 4.

Referring to fig. 4, in the illustrated embodiment, the cleaning apparatus 5 includes a brush assembly and a spray assembly, and the brush assembly cooperates with the spray assembly to clean the shield surface of the damper plate 4 only when the inner cleaning assembly is in the damper plate cleaning state.

In other embodiments, the cleaning apparatus 5 includes a brush assembly having a brush up-down driving structure 59, and a spray assembly, wherein the brush up-down driving structure 59 drives the fixing support 54 to move in the air collecting chamber when the damper panel 4 closes the air suction opening 11, and the brush rotation driving member 55 drives the rotating brush 51 to rotate and clean the wall surface of the inner cavity of the air collecting chamber. The wall surface of the inner cavity of the wind collecting cavity comprises the inner wall surface of the rear plate 2, the inner wall surface of the panel 1 and the wall surface of one side of the air door plate 4 far away from the panel 1.

In still other embodiments, the cleaning apparatus 5 includes a brush assembly and a spray assembly, the water supply conduit 52 having a scraper/brush disposed directly thereon, the scraper/brush and the cleaning nozzle 53 simultaneously rotating with the water supply conduit 52 while the rotational drive structure 57 drives the water supply conduit 52 to rotate, the water supply conduit 52 spraying cleaning medium, the scraper/brush scraping at least against the shield surface of the damper plate 4.

Referring to fig. 2 to 5, the inner cleaning assembly of the present invention further has a normal air supply state, the damper plate 4 has an air guiding opening 41 thereon, the damper plate 4 has a third position on the guide rail 3, in which the air guiding opening 41 corresponds to the air suction opening 11, and the air suction opening 11 is opened. When the damper plate 4 is at the third position on the guide rail 3, the air guide opening 41 of the damper plate 4 corresponds to the air suction inlet 11, the damper plate 4 also needs to be closely attached to the inner wall surface of the panel 1, the air guide opening 41 on the damper plate 4 can correspond to the air suction inlet 11 and the oil smoke outside the panel 1 cannot enter the gap between the damper plate 4 and the panel 1, so that the third position is also on the first section 31 of the guide rail 3, when the damper plate 4 slides on the first section 31 of the guide rail 3, the damper plate 4 is switched between the first position and the third position, and the bulge 42 extends from the air suction inlet 11 or the air guide opening 41 corresponds to the air suction inlet 11; when the damper plate 4 slides to the third position, the air guide opening 41 corresponds to the air suction opening 11, the air suction opening 11 is opened, the inner cleaning assembly enters a normal air supply state, and at the moment, when the smoke exhaust fan of the range hood is started, external oil smoke enters the air collection cavity through the air suction opening 11 and the air guide opening 41. That is, the suction port 11 is opened in the air flap cleaning state or the normal air supply state of the inner cleaning assembly, but only in the air flap cleaning state of the inner cleaning assembly, the cleaning device 5 cleans the shielding surface of the air flap 4.

The invention also discloses a range hood, which adopts the inner cleaning component. Referring to fig. 1 and 4, the range hood disclosed by the invention further comprises a smoke exhaust fan 7, wherein the smoke exhaust fan 7 is arranged in the air collecting cavity, and when the shielding surface of the air door plate 4 shields the air suction opening 11, the smoke exhaust fan 7 is closed; when the shielding surface of the air door plate 4 leaves the air suction opening 11, the air suction opening 11 is opened, and the smoke exhaust fan operates. When the range hood is started to operate, the inner cleaning component is in a normal air supply state, the air door plate 4 is in a third position on the guide rail 3, the air guide opening 41 corresponds to the air suction opening 11, the air suction opening 11 is opened, the smoke exhaust fan 7 is started, and external oil smoke enters the air collection cavity through the air suction opening 11 and the air guide opening 41 under the action of the smoke exhaust fan and is then discharged out of the air collection cavity by the smoke exhaust fan 7; when the range hood is started to operate, if a shielding surface on the air door plate 4 needs to be cleaned, the inner cleaning component can be switched to an air door plate cleaning state, the air door plate 4 moves to the second direction section 32 of the guide rail 3 under the action of the driving device 6 and is positioned at the second position, at the moment, the air door plate 4 is positioned below the air suction opening 11, a containing cavity is formed between the air door plate 4 and the inner wall surface of the panel 1, the cleaning device 5 is arranged in the containing cavity, the shielding surface on the air door plate 4 faces the cleaning device 5, the cleaning device 5 is started, the cleaning nozzle 53 of the spraying component faces the shielding surface and sprays cleaning media to the shielding surface, and meanwhile, the rotary brush 51 is driven by the brush rotation driving piece 55 to rotate, so that the shielding surface of the air door plate 4 is cleaned by the rotary brush 51; when the range hood finishes the operation, the smoke exhaust fan is turned off, and a user can switch the inner cleaning assembly to a state of closing the air suction port or a state of cleaning the inner wall of the air collection cavity according to the requirements; if the user switches the inner cleaning component to a state of closing the air suction opening, the driving device 6 moves the air door plate 4 on the guide rail 3, after the air door plate 4 moves to the first position, the shielding surface of the air door plate 4 closes the air suction opening 11, the bulge part 42 on the shielding surface stretches into the air suction opening 11 and forms the appearance surface of the panel 1, and at the moment, the range hood is completely closed; when the smoke exhaust fan is turned off, if a user switches the inner cleaning assembly to a cleaning state of the inner wall of the air collecting cavity, the driving device 6 drives the air door plate 4 to move on the guide rail 3, after the air door plate 4 moves to the first position, the shielding surface of the air door plate 4 closes the air suction inlet 11, the bulge part 42 on the shielding surface stretches into the air suction inlet 11 and forms the appearance surface of the panel 1, the cleaning device 5 is started, the up-and-down driving structure 58 of the spraying assembly drives the bracket assembly 56 to slide along the guiding structure, so that the water supply pipeline 52 moves up and down along with the bracket assembly 56, the rotation driving structure 57 drives the water supply pipeline 52 to rotate, the cleaning nozzle 53 rotates along with the water supply pipeline 52 and sprays cleaning media, after the inner cavity wall surface of the whole air collecting cavity is cleaned, the cleaning device 5 stops running, and the smoke exhaust ventilator is completely turned off.

In the embodiment of the brush assembly with the brush up-and-down driving structure 59, when the inner cleaning assembly is in the cleaning state of the inner wall of the wind collecting cavity, the brush up-and-down driving structure 59 drives the fixed support 54 to move in the wind collecting cavity, and the brush rotation driving member 55 rotates the rotary brush 51 to enable the rotary brush 51 to rotate relative to the fixed support 54 so as to assist the spraying assembly in cleaning the inner cavity wall surface of the wind collecting cavity, so that the inner cavity wall surface of the wind collecting cavity is cleaned cleanly.

Referring to fig. 4, in the illustrated embodiment, when the inner cleaning assembly is switched to the cleaning state of the inner wall of the wind collecting cavity, the brush assembly is in a stop state, and the spraying assembly moves in the wind collecting cavity and cleans the inner cavity wall surface of the wind collecting cavity.

The range hood of the invention, the spraying area of the spraying assembly also comprises a third spraying area corresponding to the area where the smoke exhaust fan 7 is positioned. When the range hood works, the smoke exhaust fan 7 is started, external oil smoke enters the air collecting cavity through the air suction opening 11 on the panel 1 of the range hood, then is discharged from the air collecting cavity through the smoke exhaust fan 7, the smoke exhaust fan 7 is positioned above the air suction opening 11, after the oil smoke enters the air collecting cavity, under the action of the smoke exhaust fan 7, the oil smoke flows towards the air inlet of the smoke exhaust fan 7, part of air flow formed by the oil smoke directly enters the shell of the smoke exhaust fan 7 through the air inlet of the smoke exhaust fan 7, the other part of the air flow can be flushed onto the rear plate 2, then flows towards the air inlet of the smoke exhaust fan 7 along the rear plate 2, then enters the shell of the smoke exhaust fan 7, and finally the air collecting cavity is discharged by the smoke exhaust fan 7. In the whole smoke discharging process, after the smoke enters the air collecting cavity through the air suction inlet 11, the smoke flows to the smoke discharging fan 7, and after the smoke discharging fan 7 is positioned above the air suction inlet 11, the smoke flows upwards after entering the air collecting cavity through the air suction inlet 11, so that a mixture of oil and water formed by the smoke in the air collecting cavity in the smoke discharging process mainly adheres to the part of the inner wall surface of the rear plate 2 positioned above the air suction inlet 11, the part of the inner wall surface of the panel 1 positioned above the air suction inlet 11 and the shell of the smoke discharging fan 7, and when the mixture of the oil and the water is accumulated to a certain amount on the part of the inner wall surface of the rear plate 2 positioned above the air suction inlet 11, the part of the inner wall surface of the panel 1 positioned below the air suction inlet 11, the part of the inner wall surface of the smoke discharging fan 7 positioned below the air suction inlet 11, and the second spray nozzle 53 positioned on the spray nozzle of the spray cleaning device corresponding to the second spray area 53 positioned on the third spray area of the spray nozzle of the spray device corresponding to the third spray area 53 positioned on the inner wall surface of the air suction inlet 11; when the cleaning nozzle 53 is at the first cleaning position, the cleaning nozzle 53 is located below the air suction port 11, and the cleaning nozzle 53 cleans the parts of the first spraying area and the second spraying area located below the air suction port 11, so that the inner wall surface of the whole air collecting cavity and the smoke exhaust fan 7 can be cleaned.

Referring to fig. 1, 3 and 4, the range hood of the present invention further includes a PM2.5 detection module 8 capable of detecting ambient air quality in real time and a display control device 9 capable of displaying detection data thereof, wherein the inner cleaning assembly, the exhaust fan 7 and the PM2.5 detection module 8 are electrically connected with the display control device 9, and when the detection value of the PM2.5 detection module 8 reaches a set range, the display control device 9 sends a start command to the exhaust fan 7 and the inner cleaning assembly, the damper plate 4 opens the air suction port 11, and the exhaust fan 7 enters an operating state; or when the detection value of the PM2.5 detection module 8 reaches the set range, the display control device 9 sends a starting instruction to the smoke exhaust fan 7 and the inner cleaning component, the inner cleaning component enters a fan plate cleaning state, and the smoke exhaust fan 7 enters an operating state. When the range hood is in a shutdown state, the air door plate 4 shields the air suction port 11; after the range hood is started, the PM2.5 detection module 8 is started firstly, the PM2.5 detection module 8 detects the air quality of the working environment and sends detection data to the display control device 9, the display control device 9 displays the data detected by the PM2.5 detection module 8 and judges whether the detection value of the PM2.5 detection module 8 reaches a set range, when the detection value of the PM2.5 detection module 8 reaches the set range, the display control device 9 sends a starting instruction to the smoke exhaust fan 7 and the inner cleaning component, the inner cleaning component enters a normal air supply state, the driving device 6 is started and drives the air door plate 4 to slide along the guide rail 3 and move to a third position, the air guide opening 41 is aligned with the air suction opening 11, the air suction port 11 is opened, the smoke exhaust fan 7 enters an operation state, external oil smoke enters the air collecting cavity through the air suction port 11 under the action of the smoke exhaust fan 7, then the smoke exhaust fan 7 discharges the air collecting cavity, when the smoke exhaust fan 7 works, the PM2.5 detection module 8 detects the ambient air quality in real time and sends detection data to the display control device 9, at the moment, if a user needs the cleaning device 5 to clean the shielding surface of the air door plate 4, the user switches the inner cleaning component to the air door plate cleaning state through the display control device 9, the driving device 6 moves the air door plate 4 to the second position, and the cleaning device is started and cleans the shielding surface of the air door plate 4; when the detection value of the PM2.5 detection module 8 is lower than the minimum value of the set range, the display control device 9 sends a shutdown instruction to the smoke exhaust fan 7 and the driving device 6, the smoke exhaust fan 7 enters a shutdown state, the inner cleaning component enters a state of closing the air suction port, the driving device 6 drives the air door plate 4 to slide along the guide rail 3, and when the air door plate 4 moves to a first position on the first direction section 31, the bulge part 42 extends out of the air suction port 11 and shields the air suction port 11; after the smoke exhaust fan 7 is shut down, if a user needs to clean the wind collecting cavity, the user switches the inner cleaning component to a cleaning state of the inner wall of the wind collecting cavity through the display control device 9, and the cleaning device 5 is started and cleans the wind collecting cavity.

Referring to fig. 3 and 4, in the range hood of the present invention, an oil leakage hole and an oil cup 10 for receiving oil stain flowing out of the oil leakage hole are provided at the bottom of the air collecting cavity, and a liquid level sensor is provided in the oil cup 10; when the inner cleaning component is in the cleaning state of the inner wall of the air collecting cavity, the cleaning device 5 adjusts the spraying time according to the oil dirt amount collected in the oil cup 10, the cleaning device 5 stops running after reaching the spraying time, and when the inner cleaning component is in the cleaning state of the air door plate, the cleaning device 5 stops running after working for 1-5 min. After the smoke exhaust fan 7 is shut down, if the air collecting cavity needs to be cleaned, a user switches the inner cleaning component to the cleaning state of the inner wall of the air collecting cavity through the display control device 9, the cleaning device 5 is started and cleans the air collecting cavity, when the cleaning device 5 works, the cleaning medium sprayed by the spraying component and the mixture of the cleaned oil and water flow downwards along the inner wall surface of the rear plate 2, the inner wall surface of the panel 1, the air door plate 4 and the shell of the smoke exhaust fan 7 and drop to the bottom of the air collecting cavity, and then drop downwards through the oil leakage hole arranged at the bottom of the air collecting cavity and are received by the oil cup 10 at the bottom of the air collecting cavity. When the inner cleaning component is switched to the cleaning state of the inner wall of the wind collecting cavity, the cleaning range of the cleaning device 5 is larger, when the liquid level sensor in the oil cup 10 does not give an alarm to the control system, the spraying component can continuously work and clean greasy dirt in the spraying area, when the greasy dirt collected in the oil cup 10 reaches the early warning amount of the liquid level sensor, the liquid level sensor gives an alarm to the control system, and the control system adjusts the spraying time of the spraying component to avoid the overflow of the greasy dirt in the oil cup 10. When the smoke exhaust fan 7 is started and normally operates, if the shielding surface of the air door plate 4 needs to be cleaned, a user switches the inner cleaning assembly to an air door plate cleaning state through the display control device 9, the spraying assembly enters a first cleaning position, the spraying assembly cleans the shielding surface of the air door plate 4 and the inner wall surface of the panel 1 positioned below the air suction opening 11, the cleaning range is smaller, and at the moment, the spraying assembly stops operating after spraying for 1-5min, so that the shielding surface of the air door plate 4 and the inner wall surface of the panel 1 positioned below the air suction opening 11 can be cleaned.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.

Claims

1. An internal cleaning assembly for a range hood, comprising:

a panel (1) on which an air suction port (11) is provided;

the rear plate (2) is arranged corresponding to the panel (1), a wind collecting cavity is formed between the rear plate (2) and the panel (1), and a guide rail (3) is arranged in the wind collecting cavity;

a damper plate (4) which is slidingly connected to the guide rail (3), wherein the damper plate (4) has a shielding surface which shields the suction inlet (11) and forms the appearance surface of the panel (1);

the cleaning device (5) is arranged in the wind collecting cavity;

the inner cleaning assembly is provided with an air door plate cleaning state and an air collecting cavity inner wall cleaning state; in a damper plate cleaning state, a shielding surface of the damper plate (4) faces the cleaning device (5), the air suction inlet (11) is opened, and the cleaning device (5) cleans the shielding surface; in the cleaning state of the inner wall of the wind collecting cavity, the shielding surface of the air door plate (4) shields the air suction opening (11), and the cleaning device (5) is started to clean one side of the air door plate (4) facing the rear plate (2) and the inner side of the rear plate (2).

2. An inner cleaning assembly according to claim 1, further comprising a drive means (6), said drive means (6) being connected to said damper plate (4), said damper plate (4) having a first position in which a shielding surface of said damper plate (4) shields said suction opening (11), and a second position in which said shielding surface of said damper plate (4) is facing said cleaning means (5), said suction opening (11) being open, said drive means (6) driving said damper plate (4) to move between said first and second positions.

3. An inner cleaning assembly according to claim 2, characterized in that the guide rail (3) has an angle connecting the first position and the second position, which angle causes the damper plate (4) to be distanced from the panel (1) in the second position and to form an angle of 15 ° -45 ° with the inner wall surface of the panel (1).

4. The inner cleaning assembly according to claim 2, further comprising a state of closing the suction opening, wherein the inner cleaning assembly is switched from a flap cleaning state to a state of closing the suction opening when the flap (4) is moved from the second position to the first position on the guide rail (3), and wherein the cleaning device (5) is closed, and wherein the inner cleaning assembly is switched from a state of closing the suction opening to a state of cleaning the inner wall of the air collection chamber when the cleaning device (5) is opened.

5. An inner cleaning assembly according to claim 1, characterized in that the cleaning device (4) comprises a brush assembly; or/and the cleaning device (4) comprises a spraying component, and in the air door plate cleaning state, the spraying component operates, and a smoke exhaust fan of the range hood operates.

6. The inner cleaning assembly according to claim 1, further comprising a normal air supply state, wherein the damper plate (4) is provided with an air guiding opening (41), the damper plate (4) is provided with a third position on the guide rail (3), and in the third position, the air guiding opening (41) corresponds to the air suction inlet (11), and the air suction inlet (11) is opened.

7. An inner cleaning assembly according to claim 1, characterized in that the cleaning device (5) comprises a brush assembly comprising a rotating brush (51) facing the screening surface, the rotating brush (51) having a resilient brush head which resiliently contacts and cleans the screening surface; or/and the cleaning device (5) comprises a spraying assembly, wherein the spraying assembly comprises a water supply pipeline (52) and cleaning nozzles (53) facing the shielding surface, the water supply pipeline (52) is horizontally arranged along the shielding surface, and a plurality of cleaning nozzles (53) are arranged along the water supply pipeline (52) at intervals.

8. A range hood, adopts the interior subassembly that washs of any one of claims 1 to 7, and characterized in that still includes smoke exhaust fan (7), smoke exhaust fan (7) are located in the collection wind chamber, when the cover face of air door plant (4) shelters from inlet scoop (11), smoke exhaust fan (7) are closed, when the cover face of air door plant (4) leaves inlet scoop (11), inlet scoop (11) are opened, smoke exhaust fan (7) operation.

9. The range hood according to claim 8, further comprising a PM2.5 detection module (8) capable of detecting ambient air quality in real time and a display control device (9) capable of displaying detection data thereof, wherein the inner cleaning assembly, the exhaust fan (7) and the PM2.5 detection module (8) are all electrically connected with the display control device (9), and when the detection value of the PM2.5 detection module (8) reaches a set range, the display control device (9) sends a start command to the exhaust fan (7) and the inner cleaning assembly, the damper plate (4) opens the air suction inlet (11), and the exhaust fan (7) enters an operation state; or when the detection value of the PM2.5 detection module (8) reaches the set range, the display control device (9) sends a starting instruction to the smoke exhaust fan (7) and the inner cleaning component, the inner cleaning component enters a fan plate cleaning state, and the smoke exhaust fan (7) enters an operating state.

10. The range hood according to claim 8, wherein the bottom of the air collecting cavity is provided with an oil leakage hole and an oil cup (10) for receiving oil stains flowing out of the oil leakage hole, and a liquid level sensor is arranged in the oil cup (10); when the inner cleaning component is in a cleaning state of the inner wall of the air collecting cavity, the cleaning device (5) adjusts the spraying time according to the oil dirt amount collected in the oil cup (10), and the cleaning device (5) stops running after reaching the spraying time; when the inner cleaning component is in the air door plate cleaning state, the cleaning device (5) stops running after working for 1-5 min.