CN114339010A - Image detection device, range hood and control method of range hood - Google Patents

Abstract

The invention belongs to the technical field of electric appliances, and particularly discloses an image detection device, a range hood and a control method of the range hood. The image detection apparatus includes: the image detection unit comprises a camera and a protective cover fixedly wrapped on the outer side of the camera, and the protective cover at least comprises a light-transmitting part which is arranged opposite to the camera; the light-transmitting part can be selectively turned into the accommodating cavity and cleaned by the wiping part, and the light-transmitting part can be completely exposed out of the shell. The range hood comprises the image detection device. The image detection device, the range hood and the control method of the range hood provided by the invention can realize self-cleaning of the image detection device, ensure the detection precision of the image detection device and enhance the maintenance force on the camera.

Description

Image detection device, range hood and control method of range hood

Technical Field

The invention belongs to the technical field of electric appliances, and particularly relates to an image detection device, a range hood and a control method of the range hood.

Background

Along with the improvement of people's quality of life, range hood becomes indispensable electrical apparatus in the kitchen, and it installs the top at kitchen cooking utensils usually, can carry out the pump drainage fast to the waste gas that the gas kitchen burning produced and the oil smoke that cooks in-process produced, realizes the purification to the kitchen environment from this, improves the travelling comfort when people cook.

Along with the intelligent development of range hood, current range hood is provided with the camera that is used for carrying on the top of a kitchen range to detect usually, and the camera can be used to detect oil smoke volume or top of a kitchen range temperature to discernment oil smoke size or top of a kitchen range temperature height, thereby can control range hood's pump drainage according to the testing result better. The camera installed on the range hood is exposed out of the smoke collecting hood, so that grease is easily attached to the protective hood of the camera in the use process of the range hood, and the detection precision of the camera is reduced after the camera is used for a long time, so that the camera needs to be cleaned regularly.

The mode that adopts artifical manual clearance to carry out regular clearance maintenance to the camera now usually, wastes time and energy, causes the untimely and improper problem of clearance easily, and need follow collection cigarette cover and dismantle when the camera clearance, need install again after the clearance finishes, and the dismouting is troublesome, and causes the problem of dislocation around the dismouting easily.

Disclosure of Invention

The invention aims to provide an image detection device, a range hood and a control method of the range hood so as to improve the convenience of cleaning and maintaining a camera and ensure the image detection precision.

In order to achieve the purpose, the invention adopts the following technical scheme:

an image detection apparatus comprising:

the image detection unit comprises a camera and a protective cover fixedly wrapped on the outer side of the camera, and the protective cover at least comprises a light-transmitting part which is arranged opposite to the camera;

the light-transmitting part can be selectively turned into the accommodating cavity and cleaned by the wiping part, and the light-transmitting part can be completely exposed out of the shell.

As an optional technical scheme of image detection device, be provided with stock solution chamber and control on the shell, the stock solution intracavity storage has the cleaning solution, the stock solution chamber have with hold the hydrojet hole of chamber intercommunication, the control can control the hydrojet hole is to turning into hold the printing opacity portion in chamber and spray the cleaning solution.

As an optional technical solution of the image detecting device, the image detecting unit is rotatably connected to the housing through a rotating shaft, and the control member includes a control rod, and the control rod is in transmission connection with the rotating shaft, so that the rotating shaft can drive the control rod to selectively press the cavity wall of the accommodating cavity to eject the cleaning solution.

As an optional technical scheme of image detection device, the control lever through the installation axle with the shell rotates to be connected, the cover is equipped with sector gear in the axis of rotation, the cover is equipped with driven gear on the installation axle, sector gear can with driven gear meshing.

As an optional technical scheme of the image detection device, a liquid discharge hole is formed at the lowest position of the cavity wall of the accommodating cavity, and the liquid discharge hole is positioned below the liquid spray hole;

and/or a liquid adding port is arranged on one side of the shell, which is far away from the image detection unit, and the liquid adding port is communicated with the liquid storage cavity;

and/or a nozzle is arranged at the liquid spraying hole and can be opened under the squeezing action of the fluid.

As an optional technical scheme of image detection device, it has convex main cavity wall to hold the chamber, the main cavity wall encloses to be established the outside of safety cover and with the coaxial setting of axis of rotation of safety cover, main cavity wall is followed the direction of rotation of safety cover has set gradually the hydrojet district and has cleaned the district, the hydrojet district is provided with a plurality of hydrojet hole, clean set up in clean the district.

As an optional technical solution of the image detection apparatus, a waiting area is provided in the accommodating chamber, the waiting area is located on a side of the wiping area away from the liquid ejecting area, and the light transmitting portion can be turned into the waiting area and separated from contact with the wiping member.

As an optional technical scheme of the image detection device, the protective cover is of a spherical structure, and the optical axis of the camera penetrates through the sphere center of the spherical structure.

As an optional technical solution of the image detection apparatus, the housing includes an installation bottom plate portion and a semi-cylindrical tube portion, two ends of the tube portion along a circumferential direction are connected with the installation bottom plate portion, the tube portion and the installation bottom plate portion surround to form the accommodation cavity, the image detection unit is rotatably disposed on the installation bottom plate portion, and the wiping member is disposed on an inner surface of the tube portion.

As an alternative solution of the image detection apparatus, the image detection apparatus further includes a driving unit, and a driving shaft of the driving unit is connected to a rotating shaft of the image detection unit.

The utility model provides a range hood, includes the collection petticoat pipe, still includes as above image detection device, the inspection hole has been seted up to the bottom of collection petticoat pipe, image detection device install in the inside of collection petticoat pipe, just light-transmitting portion can pass through the inspection hole expose in the collection petticoat pipe.

As an optional technical scheme of the range hood, a maintenance port is formed in a hood top plate of the smoke collecting hood and is located right above the image detection device, and a maintenance cover is arranged at the maintenance port.

As an optional technical scheme of the range hood, the range hood is a top-suction type double-cavity range hood, the image detection device is positioned between two smoke inlet cavities which are arranged side by side at the left and right, and the image detection device is positioned at the front side of the smoke collecting cover.

As an optional technical scheme of the range hood, when the image detection unit is in a working state, the optical axis of the camera is vertically arranged;

and/or when the image detection unit is in a working state, the end face of the detection end of the camera is flush with the edge of the lower end of the detection hole.

A control method of a range hood is applied to the range hood, and comprises the following steps:

when the cooking bench is detected to be in a cooking state, controlling the image detection unit to rotate or keep to be in a working state;

when the range hood is closed, the image detection unit is controlled to rotate, so that the light transmission part passes through the wiping part and is contained in the containing cavity.

As an optional technical scheme of a control method, cooking temperature-oil smoke volume curves of different dishes and different cookings are built in the range hood, and the control method further comprises the following steps:

when the cooking state is achieved, the cooking temperature is detected in real time, and the image detection unit shoots the state of the cooking bench in real time;

identifying cooking dishes and cooking modes in real time according to the shot result;

acquiring a corresponding cooking temperature-oil smoke volume curve according to the identified cooking dishes and the cooking modes;

according to the detected cooking temperature, pre-judging the oil smoke amount based on the cooking temperature-oil smoke amount curve;

and adjusting the suction wind power of the range hood according to the pre-judged oil smoke amount.

As an optional technical solution of the control method, the control method further includes: and when the cooking state is in, detecting the cooking temperature and the oil smoke amount in real time, and correcting the cooking temperature-oil smoke amount curve in real time based on the detected oil smoke amount and the difference of the calculated oil smoke amount under the same cooking temperature.

As an optional technical scheme of the control method, after cooking is finished, whether the temperature of the cooking bench, the detection smoke amount or the standby time after finishing meets a preset shutdown condition is judged, and if yes, the range hood is shut down.

The invention has the beneficial effects that:

according to the image detection device provided by the invention, the shell which is rotatably connected with the image detection unit is arranged, so that when the image detection device is not required to be used, the light transmission part can be rotated into the accommodating cavity, the effects of hiding the camera and the light transmission part are achieved, and the pollution of external dust, oil stain and the like to the light transmission part is reduced, so that the detection precision of the image detection unit is ensured, and the maintenance difficulty of the image detection device is reduced; meanwhile, the cleaning piece is arranged in the accommodating cavity, when the light transmission part is rotated into the accommodating cavity, the cleaning piece can clean the outer surface of the light transmission part, and the surface cleaning of the light transmission part is ensured, so that the detection precision of the image detection unit is further ensured, the self-cleaning of the light transmission part is realized, the manual cleaning of the protective cover is not needed, the cleaning efficiency of the image detection unit is improved, and the disassembly and assembly frequency is reduced.

According to the range hood provided by the embodiment of the invention, the image detection is carried out by adopting the image detection device, so that the image detection precision can be ensured, the control precision of the range hood is improved, and the cleaning and maintenance difficulty of the range hood is reduced.

According to the control method of the range hood provided by the embodiment of the invention, the image detection device is rotated into the accommodating cavity during non-cooking, so that the light transmission part is hidden in the range hood during non-use, the pollution of grease to the light transmission part is reduced, the image detection precision is ensured, and the control precision of the range hood is improved.

Drawings

Fig. 1 is a schematic structural diagram of an image detection apparatus according to a first embodiment of the present invention;

fig. 2 is a schematic diagram of a disassembled structure of an image detection apparatus according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a cleaning assembly according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a mounting bracket according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a cleaning process of an image inspection apparatus according to an embodiment of the present invention;

fig. 6 is a sectional view of a range hood according to a second embodiment of the present invention;

FIG. 7 is an enlarged view of a portion of FIG. 6 at I;

fig. 8 is a bottom view of the range hood according to the second embodiment of the present invention;

fig. 9 is a flowchart of a control method of the range hood according to the third embodiment of the present invention;

fig. 10 is a flowchart of a control method of a range hood according to a fourth embodiment of the present invention.

The figures are labeled as follows:

10. an image detection device; 20. a smoke collecting hood; 201. a cover top plate; 202. a filter screen plate; 203. a smoke inlet cavity; 204. maintaining the cover; 205. an oil cup; 30. a smoke exhaust pipe; 40. a pumping device; 50. a control panel;

1. an image detection unit; 11. a camera module; 111. a camera; 12. a protective cover; 121. a light-transmitting portion;

2. a cleaning assembly; 21. a housing; 211. mounting a bottom plate part; 2111. an installation port; 212. a barrel portion; 213. an accommodating chamber; 213a, a liquid ejection area; 213b, a wiping area; 213c, a waiting area; 214. a liquid storage cavity; 215. a liquid adding port; 216. a drain hole; 22. a wiper; 23. a control lever; 24. a sector gear; 25. a driven gear; 26. a nozzle;

3. a drive unit; 31. a drive motor; 32. a shaft connector; 321. a first connection portion; 322. a second connecting portion;

4. a rotating shaft;

5. mounting a bracket; 51. installing a top plate part; 52. a mounting side plate portion; 53. a support plate portion; 54. a mounting plate portion; 55. an extension plate portion.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example one

As shown in fig. 1, the present embodiment provides an image detection apparatus 10, which has an image detection function and a self-cleaning function, and can perform self-cleaning on an image detection unit 1 inside a structure to be detected while implementing image detection on the structure to be detected, thereby ensuring detection accuracy of the image detection apparatus 10 and reducing difficulty in cleaning the image detection apparatus 10.

In the present embodiment, the image detection apparatus 10 is applied to a range hood as an example, and a specific structure and a using manner of the image detection apparatus 10 are specifically described, but it can be understood that the image detection apparatus 10 provided in the present embodiment may also be applied to other scenes that need to perform intermittent image detection, and a change of an application scene does not change a basic structure of the image detection apparatus 10.

Specifically, as shown in fig. 1 and 2, the image detection apparatus 10 provided in the present embodiment includes an image detection unit 1 and a cleaning assembly 2. The image detection unit 1 comprises a camera module 11 and a protective cover 12 fixedly wrapped on the camera module 11, the camera module 11 comprises a camera 111, and the protective cover 12 at least comprises a light-transmitting part 121 opposite to the camera 111; the cleaning assembly 2 includes a housing 21 and a wiper 22, the housing 21 has a receiving cavity 213, the wiper 22 is disposed on a cavity wall of the receiving cavity 213, and the image detection unit 1 is rotatably connected to the housing 21, so that the light-transmitting portion 121 can be selectively rotated into the receiving cavity 213 and wiped by the wiper 22 for cleaning, and at the same time, the light-transmitting portion 121 can be completely exposed out of the housing 21.

In the image detection apparatus 10 provided in this embodiment, by providing the housing 21 rotatably connected to the image detection unit 1, when the image detection apparatus 10 is not needed to be used, the light-transmitting portion 121 can be rotated into the accommodating cavity 213, so as to achieve the effect of hiding the camera 111 and the light-transmitting portion 121, and reduce contamination of external dust, oil stain, and the like to the light-transmitting portion 121, thereby ensuring the detection accuracy of the image detection unit 1 and reducing the maintenance difficulty of the image detection apparatus 10; meanwhile, by arranging the wiper 22 in the accommodating cavity 213, when the light-transmitting part 121 is rotated into the accommodating cavity 213, the wiper 22 can wipe the outer surface of the light-transmitting part 121, so that the surface of the light-transmitting part 121 is clean, the detection precision of the image detection unit 1 is further ensured, the self-cleaning of the light-transmitting part 121 is realized, the protective cover 12 does not need to be wiped and cleaned manually, the cleaning efficiency of the image detection unit 1 is improved, and the disassembly and assembly frequency is reduced.

In order to improve the cleaning automaticity of the image sensing apparatus 10, the image sensing apparatus 10 further includes a driving unit 3, and the driving unit 3 is connected to the housing 21 or the image sensing unit 1 to realize mutual rotation between the image sensing unit 1 and the housing 21. In this embodiment, the driving unit 3 is connected to the image detection unit 1, that is, when the image detection apparatus 10 is used during installation, the housing 21 is fixed relative to the installation structure, such as the smoke collecting hood 20 of the range hood, so as to facilitate improvement of installation convenience of the image detection apparatus 10 on the installation structure, and meanwhile, when the installation structure is the smoke collecting hood 20, since the size of the image detection unit 1 is smaller relative to the housing 21, the space required by rotation can be reduced, the size of the detection hole on the smoke collecting hood 20 is reduced, and the structure exposure is reduced.

The camera 111 is preferably an infrared camera, which can not only shoot image information, but also acquire temperature information of a shot object, and can reduce the influence of light on shooting, and improve the quality of shooting and the applicability to the environment. The camera module 11 further includes a circuit board electrically connected to the camera 111 and a bracket connected to the protective cover 12. The camera module 11 may be a conventional mature product, and the structure thereof is herein limited and described in detail.

The protective cover 12 is preferably a spherical structure, the optical axis of the camera 111 passes through the spherical center of the spherical structure, and the light-transmitting portion 121 is formed in the area of the spherical structure right opposite to the camera 111, so that the light-transmitting portion 121 is a spherical arc structure with an opening facing to the sphere, light diffusion can be better realized, the field of view shot by the camera 111 is guaranteed, and the shooting quality is improved.

Preferably, on any plane passing through the optical axis, the central angle of the circular arc of the cross section formed on the plane by the light-transmitting portion 121 is a preset angle, so as to ensure that the field of view of the camera 111 in each direction is the same. Further, the preset angle is set to be 45-180 degrees, and the optimal angle is 60 degrees.

The protective cover 12 is preferably made of transparent plastic, and has good light transmission, low cost and low possibility of damage. The transparent plastic is preferably made of acrylic material, so that the light guide performance is good, and materials such as PV and ABS can be selected, which is not limited in this embodiment. The protective cover 12 is arranged at an interval with the tail end of the camera 111 to avoid extrusion and scratch on the camera 111 and provide better protection for the camera 111. The installation of the camera module 11 in the protective cover 12 can refer to the prior art, which is not the focus of the present invention and will not be described herein.

In other embodiments, only the light-transmitting portion 121 may be in a spherical arc shape, and a corresponding spherical center of the spherical arc shape is located on an extension line of the optical axis. Alternatively, only the translucent portion 121 may be in a transparent state, and the other portion of the protective cover 12 may be in a non-transparent state.

The image detection unit 1 is rotatably connected with the housing 21 through the rotating shaft 4, and the driving unit 3 is in transmission connection with the rotating shaft 4, so that the whole structure of the image detection unit 1 can be simplified, and the convenience of connection between the driving unit 3 and the image detection unit 1 is improved. That is, in the present embodiment, the rotation shaft 4 is rotatably connected to the housing 21 and is fixedly connected to the image detection unit 1. The extension line of the rotating shaft 4 passes through the center of the protective cover 12, and ensures that the protective cover 12 rotates around the central axis thereof. And the axis of the rotating shaft 4 is preferably perpendicular to the optical axis, so as to ensure that the rotation of the rotating shaft 4 can drive the camera 111 and the light-transmitting part 121 to rotate around the rotating shaft 4. In other embodiments, the axis of the rotating shaft 4 may be inclined with respect to the optical axis, as long as the camera 11 and the corresponding translucent portion 121 can be rotated into the housing chamber 213.

In this embodiment, axis of rotation 4 is connected with protection cover 12 to avoid axis of rotation 4 to stretch out to the inside module 11 that makes a video recording of protection cover 12 and be connected, simplify axis of rotation 4 and image detection unit 1's connection structure, avoid simultaneously carrying out opening or groove structure to the surface of protection cover 12, guarantee protection cover 12's appearance integrality, avoid oil smoke or dust to enter into in protection cover 12.

Preferably, the two rotating shafts 4 are arranged at intervals along the axial direction of the rotating shafts, the two rotating shafts 4 are coaxially arranged, the first end of each rotating shaft 4 is connected with the protective cover 12, and the second end of each rotating shaft 4 is rotatably connected with the housing 21, so that the two opposite sides of the image detection unit 1 are supported on the housing 21, the stress stability of the image detection unit 1 is improved, and the rotation stability of the image detection unit 1 is improved.

Optionally, the relative both sides of safety cover 12 are the protruding boss portion that is equipped with outward, boss portion and 4 one-to-one settings of axis of rotation, and boss portion has seted up an axle jack, the first end of axis of rotation 4 is inserted and is located in the axle jack, and the preferred interference fit of the cooperation of axis of rotation 4 and axle jack, and the first end periphery wall of axis of rotation 4 is surely equipped with the face of splining, the protruding rotation stopping convex part that is equipped with the face adaptation of splining that splines, relative rotation between safety cover 12 and the axis of rotation 4 is restricted through the laminating of the face of splining and the convex part of splining, and can further lock axis of rotation 4 and the position of safety cover 12 in the axial through the locking screw who wears to locate on boss portion. It should be understood that the above-mentioned connection structure of the protective cover 12 and the rotating shaft 4 is only an exemplary structure, and other forms capable of realizing the connection of the shaft and the spherical structure can be applied to the present embodiment, such as the rotating shaft 4 and the protective cover 12 are integrally formed or welded, and the present embodiment is not limited thereto.

The housing chamber 213 preferably has a main chamber wall in the shape of a circular arc, which is provided around the outside of the protective cover 12 and coaxially with the rotary shaft 4, and the wiper 22 is provided on the main chamber wall, so that the housing 21 can be reduced in size while partially housing the image sensing unit 1 in the housing chamber 213. More preferably, the receiving cavity 213 is semicircular in cross-sectional profile so that substantially half of the boot 12 can be received into the receiving cavity 213.

Further, as shown in fig. 2, the housing 21 has a semi-cylindrical structure, and includes an installation bottom plate portion 211 parallel to the rotation shaft 4 and a semi-cylindrical portion 212, both ends of the cylindrical portion 212 in the circumferential direction are connected to the installation bottom plate portion 211, the installation bottom plate portion 211 and the cylindrical portion 212 surround to form the above-mentioned accommodation chamber 213, and the inner wall of the cylindrical portion 212 forms the above-mentioned main chamber wall. The shape of the housing 21 can reduce the overall size of the housing 21, improve the aesthetic appearance of the structure, and facilitate the arrangement of the structure such as the wiper 22 in the accommodating chamber 213. In other embodiments, the housing 21 may be hemispherical or otherwise shaped to cover a portion of the structure of the boot 12.

As shown in fig. 3, the mounting bottom plate portion 211 is opened with a mounting opening 2111, and the image detection unit 1 is inserted into the mounting opening 2111. Specifically, shaft holes are formed in the hole walls of the two opposite sides of the mounting opening 2111, and the second ends of the two rotating shafts 4 are rotatably mounted in the corresponding shaft holes. Preferably, the installation opening 2111 is a circular hole, and the diameter of the installation opening 2111 is equal to or slightly larger than the major diameter of the protection cover 12, and this arrangement can reduce the gap between the protection cover 12 and the wall of the installation opening 2111 hole after the image detection unit 1 is installed, thereby reducing the probability of external grease entering the accommodation chamber 213.

Preferably, at least one of the rotary shafts 4 projects outside the housing 21 in a direction away from the protective cover 12 in order to facilitate the connection of the rotary shafts 4 to the drive unit 3, wherein one of the rotary shafts 4 is connected to the drive unit 3.

In the present embodiment, the driving unit 3 includes a driving motor 31, and a driving shaft of the driving motor 31 is disposed coaxially with the rotating shaft 4, and the driving shaft is connected to the rotating shaft 4 by a shaft connecting member 32. The driving motor 31 is adopted to drive the rotating shaft 4 to rotate, so that the whole structure of the image detection device 10 can be reduced, and the occupied space of the image detection device 10 can be reduced. The drive motor 31 is preferably a drive motor, can be directly driven, and is small in size. In other embodiments, the driving motor 31 may also adopt a speed reducing motor or other driving transmission structure that can drive the rotating shaft 4 to rotate, and the invention is not limited in this regard.

In this embodiment, as shown in fig. 1, the shaft connector 32 includes a first connector 321 and a second connector 322, the first connector 321 is fixedly connected to the driving shaft, the second connector 322 is connected to the rotating shaft 4, and the first connector 321 is detachably connected to the second connector 322. Specifically, the round groove has been seted up on the second connecting portion 322, be provided with a plurality of spacing groove in the circumference of round groove, first connecting portion 321 includes columniform main part and follows the radial evagination card of main part protruding, the setting of card protruding and spacing groove one-to-one, and during the main part card was gone into the round groove, the protruding card of card was gone into the spacing groove, prevented the relative rotation of first connecting portion 321 and second connecting portion 322, first connecting portion 321 and second connecting portion 322 pass through locking screw and lock.

It is to be understood that the above-described configuration of the shaft connector 32 is merely exemplary and that other configurations capable of achieving two shaft connections are within the scope of the present invention.

The drive unit 3 is preferably located outside the housing 21, whereby the size of the housing 21 can be reduced. To facilitate the installation of the driving unit 3 on the external structure, the driving unit 3 further includes a mounting bracket 5, the mounting bracket 5 is connected with the housing 21 of the driving motor 31, and the mounting bracket 5 has a mounting portion for connecting with the external structure.

In the present embodiment, as shown in fig. 4, the mounting bracket 5 includes a mounting top plate 51 and mounting side plates 52 connected to opposite sides of the mounting top plate 51, and the mounting top plate 51 and the two mounting side plates 52 surround to form a U-shaped structure. And the installation top plate part 51 and the two installation side plate parts 52 are respectively attached to the side walls of the driving motor 31, so that the installation bracket 5 clamps the driving motor 31, and the installation side plate parts 52 and/or the installation bottom plate part 211 are detachably connected with the outer side wall of the driving motor 31.

Further, the support plate portions 53 are provided so as to face each other and be spaced apart from each other, and the support plate portions 53 are attached to the other side surface of the drive motor 31, so that the support plate portions 53 can support and fix the drive motor 31 more effectively, in the direction toward the other mounting side plate portion 52 at the end of the mounting side plate portion 52 remote from the mounting top plate portion 51. All vertical extension has extension board 55 downwards on every backup pad portion 53, and the end-to-end connection of extension board 55 has installation board 54, and two installation boards 54 extend along keeping away from each other's direction, have seted up the mounting hole on the installation board 54.

When the image detection apparatus 10 is applied to a range hood, the image detection apparatus 10 is mounted on the smoke collecting hood 20 of the range hood, and since the bottom of the smoke collecting hood 20 is usually disposed obliquely, in the present embodiment, it is preferable that the mounting plate portion 54 is disposed obliquely relative to the supporting plate portion 53, and the inclination directions of the two mounting plate portions 54 are the same. This kind of setting of installation board portion 54 is favorable to guaranteeing the horizontal setting of drive shaft of driving motor 31 when can realizing the connection of installation board portion 54 and collection petticoat pipe 20 bottom. That is, in the present embodiment, the mounting top plate portion 51 and the support plate portion 53 are horizontally disposed at an interval, and the mounting side plate portion 52 is vertically disposed.

In order to improve the cleanliness of the translucent portion 121 by the cleaning assembly 2, in the embodiment, as shown in fig. 5, the housing 21 has a liquid storage cavity 214, a cleaning liquid is stored in the liquid storage cavity 214, the liquid storage cavity 214 has a liquid spraying hole communicated with the accommodating cavity 213, and the control member can control the liquid spraying hole to spray the cleaning liquid to the translucent portion 121 rotating into the accommodating cavity 213. This arrangement enables the cleaning fluid to be sprayed through the spray holes onto the surface of the protective cover 12 so that when the surface onto which the cleaning fluid is sprayed passes over the wiper 22, the surface of the protective cover 12 can be wiped clean under the combined action of the cleaning fluid and the wiper 22.

In this embodiment, the reservoir 214 is disposed in the barrel 212, i.e., the barrel 212 is an annular cavity structure. The main chamber wall is provided with a liquid spraying area 213a and a wiping area 213b in sequence along the rotation direction of the protection cover 12, the liquid spraying area 213a is provided with a plurality of liquid spraying holes, and the wiper 22 is arranged in the wiping area 213 b. With the arrangement, after the light-transmitting part 121 is screwed into the accommodating cavity 213, the cleaning liquid is sprayed through the liquid spraying area 213a, and then the cleaning liquid is wiped through the wiping area 213b, so that the cleaning effect is further improved.

Further, a nozzle 26 is provided at the liquid ejection hole, and the nozzle 26 can be opened by the pressing action of the fluid. The setting of nozzle 26 can realize that the cleaning solution that sprays the department is vaporific dispersion and opens, increases the spraying cover face to printing opacity portion 121, improves the cleaning solution and sprays the effect to the clean effect of printing opacity portion 121 improves. The nozzles 26 are provided in one-to-one correspondence with the liquid ejection holes.

In this embodiment, the control member includes a control lever 23, and the control lever 23 can press the chamber wall of the liquid ejecting area 213a after the rotating shaft 4 is rotated by a preset rotation angle from the operating state, so that the cleaning liquid is ejected through the liquid ejecting holes. Realize the spun mode of cleaning solution through extrusion spray liquid district 213a, can avoid adopting the blowout of electric control cleaning solution such as pump or valve, the cost is lower, and occupation of land space reduces, can simplify image detection device 10's structure effectively.

In this embodiment, the working state is the position when the image capturing module 11 is in the normal working state, and in the working state, the transparent portion 121 is located on the side of the protective cover 12 away from the housing 21, so that the transparent portion 121 is completely exposed. Preferably, in the operating state, the optical axis of the camera 111 is perpendicular to the mounting base plate portion 211. The set rotation angle is an angle required for the light-transmitting portion 121 to rotate from the operating state to just start entering or partially entering the accommodating chamber 213. In the present embodiment, the set rotation angle is preferably 60 to 90 °. In other embodiments, the set rotation angle may be specifically selected according to the specific shape of the housing 21 and the central angle of the light-transmitting portion 121.

In this embodiment, the control lever 23 is drivingly connected to the rotating shaft 4 such that the control lever 23 is moved to selectively press the chamber wall of the cleaning spray region 213 a. Preferably, the lever 23 is disposed along a radial direction of the cylindrical portion 212, and the lever 23 is rotatably coupled to the housing 21 to achieve selective pressing of the liquid ejection section 213a by the lever 23 by way of rotation.

Specifically, the rotating shaft 4 is fixedly sleeved with a sector gear 24, the control rod 23 is rotatably connected with the housing 21 through a mounting shaft, the mounting shaft is fixedly sleeved with a driven gear 25, when the image detection device 10 is in an operating state, the sector gear 24 and the driven gear 25 are in a contact-free state, and after the rotating shaft 4 rotates to a set rotation angle, the sector gear 24 is meshed with the driven gear 25 to drive the control rod 23 to rotate in the reverse direction, so that the tail end of the control rod 23 rotates to the liquid spraying area 213 a.

The connection mode of the rotating shaft 4 and the control rod 23 is simple in structure, easy to control and small in occupied space. In other embodiments, the rotating shaft 4 may also be connected to the control rod 23 through a connecting rod or a slider crank, so long as it is ensured that the rotating shaft 4 can drive the control rod 23 to move through rotation, so that the control rod 23 selectively presses the chamber wall of the liquid spraying region 213 a.

The driven gear 25 is preferably a complete gear to ensure the meshing reliability of the sector gear 24 and the driven gear 25. In other embodiments, the driven gear 25 may be a gear of a sector structure.

In order to return the control lever 23 to the initial position not pressed against the wall of the spraying zone 213a, the cleaning assembly 2 further comprises elastic means (not shown) for keeping or returning the control lever 23 to the initial position. In this embodiment, the elastic member is preferably a torsion spring, and in other embodiments, the elastic member may be a tension spring.

Preferably, in the operating state, the control lever 23 is disposed opposite to the wiping area 213b to reduce the rotation angle required for the control lever 23 to rotate to the liquid ejection area 213 a. In other embodiments, the control lever 23 may be located on the side of the liquid ejecting area 213a away from the wiping area 213b in the operating state, and in this case, since the control lever 23 and the rotating shaft 4 rotate in the same direction, an intermediate gear should be added between the driven gear 25 and the sector gear 24 for reversing.

The sector gear 24 is preferably fitted over the rotating shaft 4 where the driving motor 31 is not provided, and is located outside the housing 21 to reduce interference between the structures. One end of the control rod 23 is connected with an installation shaft, the other end of the control rod 23 is provided with a limit groove, the limit groove is provided with an L-shaped groove wall, one side groove wall of the limit groove is abutted against the inner surface of the barrel part 212, the other side groove wall of the limit groove is abutted against the end surface of the shell 21, so that the control rod 23 is better guided in rotation, and the control rod 23 is prevented from deflecting in the axial direction of the installation shaft in the rotation process.

As shown in fig. 3, in order to prevent the cleaning liquid from accumulating in the accommodating chamber 213, a drain hole 216 is provided at the lowest portion of the wall of the accommodating chamber 213, and the drain hole 216 is located below the liquid ejecting hole. Set up the drain hole 216 in the lowest of holding chamber 213, be favorable to clean waste liquid to collect, improve waste liquid discharge effect. Specifically, the mounting bottom plate portion 211 is provided with a drain hole 216 at a position corresponding to the liquid ejection region 213a for discharging the cleaning waste liquid. Further, the inner surface of the installation bottom plate portion 211 is concavely provided with a liquid collecting groove, the groove bottom of the liquid collecting groove is provided with a liquid discharging hole 216, and the liquid collecting groove is a conical groove with a large upper part and a small lower part so as to improve the gathering effect of the cleaning waste liquid.

In order to add the cleaning solution into the liquid storage cavity 214 conveniently, the outer wall of the shell 21 is provided with the liquid adding port 215, the liquid adding port 215 is communicated with the liquid storage cavity 214, the liquid adding port 215 is plugged by a rubber plug and other structures in a non-liquid adding state, and when the cleaning solution needs to be added, the rubber plug is opened, so that the addition of the cleaning solution can be realized.

Preferably, a liquid level detection device is further disposed in the liquid storage chamber 214 to detect the liquid level in the liquid storage chamber 214, so as to remind the user whether the addition of the cleaning liquid is needed. The liquid level detection device can adopt the existing mature products, and the details are not repeated here.

The wiper 22 is preferably a sponge, foam or cotton strip structure to enhance the wiping effect on the translucent portion 121, and the inner surface of the wiper 22 is preferably a spherical arc surface adapted to the protective cover 12 to enhance the wiping effect on the protective cover 12. Further, the thickness of the wiper 22 is slightly larger than the gap between the protective cover 12 and the main cavity wall, so as to ensure a certain pressure between the wiper 22 and the outer surface of the protective cover 12, and ensure the wiping effect.

Preferably, the accommodating cavity 213 is further formed with a waiting area 213c, the waiting area 213c is located on a side of the wiper 22 away from the liquid spraying area 213a, and when the light-transmitting portion 121 rotates to the waiting area 213c, the light-transmitting area is separated from the wiper 22, so as to prevent the wiper 22 from pressing the light-transmitting portion 121 for a long time, and meanwhile, the wiper 22 can also clean the light-transmitting portion 121 comprehensively through relative rotation between the two, so as to prevent dirt from sticking on the light-transmitting portion 121, and ensure the cleaning effect of the light-transmitting portion 121.

Preferably, in this embodiment, the central angles corresponding to the waiting area 213c, the wiping area 213b and the liquid spraying area 213a are all the preset angles, and in other embodiments, the central angles corresponding to the waiting area 213c, the wiping area 213b and the liquid spraying area 213a can be set according to the requirement.

Example two

As shown in fig. 6 to 8, the present embodiment provides a range hood, which includes a smoke collecting hood 20, a smoke exhaust pipe 30 disposed at the top of the smoke collecting hood 20, an extraction device 40 disposed inside the smoke exhaust pipe 30, and the image detection device 10 in the first embodiment, wherein the smoke collecting hood 20 is used for collecting the range hood, and the extraction device 40 is used for extracting the oil smoke from the smoke collecting hood 20 to the outside.

The image detection device 10 is disposed inside the smoke collecting hood 20, a control panel 50 is disposed at a front side of the smoke collecting hood 20, and the image detection device 10 is disposed in a non-oil path area inside the smoke collecting hood 20, that is, at a position close to the control panel 50. Wherein, the bottom surface of the smoke collecting cover 20 is provided with a detection hole, and the protection cover 12 partially extends out of the detection hole, so that the light transmission part 121 can rotate to be exposed out of the smoke collecting cover 20, and the camera 111 can perform image detection on the cooking bench. The housing 21 and the mounting bracket 5 are detachably attached to the inner surface of the hood 20.

In order to add the cleaning liquid conveniently, a maintenance opening is formed in the position, corresponding to the image detection device 10, of the hood top plate 201 of the smoke collection hood 20, the maintenance opening is detachably provided with a maintenance cover 204, the maintenance opening is opposite to the liquid adding opening 215, and a user can add the cleaning liquid through the maintenance opening and disassemble and assemble the image detection device 10. The maintenance cover 204 and the cover top plate 201 are preferably connected in a rotating manner so as to facilitate the opening and closing of the maintenance cover 204, and the maintenance cover 204 and the cover top plate 201 can also be connected in a sliding manner or in a screw-detachable manner. The connection structure of the service cover 204 can refer to the prior art, and the embodiment is not limited thereto.

In this embodiment, the cleaning waste liquid flowing out from the liquid discharge hole 216 can perform secondary cleaning on the inner surface of the smoke collecting hood 20, thereby improving the utilization efficiency of the cleaning liquid.

Preferably, when the image sensing device 10 is installed in the smoke collecting hood 20 and the light transmission part 121 is rotated to be exposed to the smoke collecting hood 20, the end surface of the camera 111 is flush with the lower port of the sensing hole, so that the photographing range of the camera 111 can cover the entire range.

In this embodiment, the range hood is preferably a top-suction type dual-chamber range hood, that is, the smoke collecting hood 20 is divided into two smoke inlet chambers 203 on the left and right by the filter screen 202, and the image detecting device 10 is preferably located between the two smoke inlet chambers 203, so as to avoid the pollution of the oil smoke to the image detecting device 10 to the greatest extent. And the arrangement is more beneficial to enabling the clean waste liquid discharged from the liquid discharge hole 216 to slide downwards into the oil cup 205 along the bottom surface of the fume collecting hood 20, so that the bottom of the fume collecting hood 20 and the oil cup 205 can be cleaned, and meanwhile, the waste liquid can be better collected.

It can be understood that the range hood can also be a top-suction type single-cavity range hood or a side-suction type range hood, the invention does not limit the type and specific structure of the range hood to which the image detection device is applied, as long as the image detection device 10 is ensured to be installed in the non-oil-way area of the smoke collection hood 20 and close to the highest position of the bottom surface of the smoke collection hood 20. Meanwhile, in the present embodiment, when the image detection apparatus 10 is in an operating state, the camera 111 is located above the cooktop and an optical axis thereof is vertically disposed, so as to better photograph an image of the entire cooktop. When the range hood is a side-draft range hood, the installation position of the image detection device 10 can be specifically set according to the specific structure of the range hood, and the range hood can be subjected to image shooting as long as the requirement is met.

Other structures of the range hood can refer to the prior art, which is not the focus of the invention and are not described herein again.

EXAMPLE III

As shown in fig. 9, the present embodiment provides a range hood control method, which is applied to the range hood provided in the second embodiment to improve the protection of the camera module 11 and to achieve the self-cleaning of the camera module 11.

The range hood control method provided by the embodiment comprises the following steps:

step S101, starting a range hood;

step S102, judging whether the image detection unit is in a working state, if not, executing step S103, and if so, executing step S104;

in this embodiment, the operating state of the image detection unit, that is, the state in which the light transmission portion is exposed to the housing and the camera is facing toward the cooking top, and the standby state of the image detection unit, that is, the state in which the light transmission portion is rotated to the standby region in the accommodation chamber.

Step S103, rotating the image detection unit 1 to a working state;

s104, detecting the cooking bench by an image detection unit;

step S105, judging whether the cooking state is in a cooking state, if so, returning to the step S104, and if not, executing the step S106;

step S106, judging whether a preset shutdown condition is met, if so, executing step S107, and if not, returning to step S106;

and S107, closing the range hood and rotating the image detection unit to a standby state.

The range hood control method provided by the embodiment can control the image detection device 10 to be in the working state capable of performing image detection during cooking, can be built in the smoke collecting hood 20 during non-cooking, protects the image detection device 10, reduces pollution of oil smoke or external impurities to the image detection device 10, and improves the image detection precision of the camera 111. Meanwhile, after cooking is finished, the light-transmitting part 121 can be cleaned by the wiping part in the process of rotating the image detection unit 1 from the working state to the standby state, and the image detection precision of the image detection unit 1 is ensured.

Example four

The embodiment provides a range hood control method, which is a further improvement of the range hood control method provided by the third embodiment.

The range hood control method provided by the embodiment comprises the following steps:

step S201, starting a range hood;

step S202, judging whether the image detection unit is in a working state, if not, executing step S203, and if so, executing step S204;

step S203, rotating the image detection unit to a working state;

step S204, starting an image detection device to detect the cooking bench

Step S205, judging whether the cooking state is in a cooking state, if not, executing step S206, and if so, executing step S207;

step S206, judging whether the standby time of the range hood is longer than the preset standby time, if so, executing step S214, otherwise, returning to step S205;

whether the standby time of the range hood is longer than the preset standby time or not is judged, so that the problem that the range hood is in standby for a long time due to the fact that a user forgets to close the range hood can be avoided, and energy consumption is saved.

Step S207, identifying the current cooking dishes, cooking modes and cooking temperatures;

in the embodiment, the image detection unit 1 is adopted to identify cooking dishes, cooking modes and cooking temperatures, and the camera 111 in the image detection unit 1 adopts the infrared camera 111, which can detect images of shot objects and also can detect the temperatures of the shot objects, so that the number of sensors can be reduced, and the structure is simplified. In other embodiments, the camera 111 in the image detection unit 1 may also be used to capture and identify the type of dishes and the cooking manner, and assist the temperature sensor in detecting the cooking temperature.

In this step, the cooking dishes refer to the types of dishes being cooked in the kitchen range, and the specific identification method is to identify the dishes being cooked by means of image comparison identification, that is, images of various dishes in different states are stored in the built-in database of the range hood in advance, and the dishes with the images shot can be identified by comparing the images obtained by shooting with the images in the database. The image recognition is the prior art, and the description thereof is omitted in this embodiment.

It is worth to be noted that when the shot image is an image of a single dish, the identified dish is the single dish, and if only eggs are cooked in the stove in the initial cooking stage, only the dish is identified as the eggs; when the image of shooing includes a plurality of dish, then not only can discern every kind of dish that contains wherein, can also discern the dish formula that corresponds, and the whole dish formula that the dish was being cooked is referred to the dish at this moment, if in the culinary art later stage, has egg and tomato in the cooking utensils, then recognizable dish is tomato fried egg, if has egg and leek in the cooking utensils, then recognizable dish is leek fried egg.

That is, in this embodiment, the database stores not only the pictures of various dishes in different states, but also the various recipes and the images of the corresponding dishes in each recipe, so that the recognition result can be adjusted according to different stages of cooking, and the recognition accuracy can be improved.

The cooking modes are cooking modes which can be used in the existing life such as steaming, frying, stewing, boiling and the like. The cooking mode can be primarily identified through the type of the cooker, such as a frying pan which is usually used for frying dishes, a steaming pan which is usually used for steaming dishes and the like. More preferably, the cooking manner can be more accurately identified by identifying the type of the cooker and the state of the dishes in the cooker. Further, the cooking mode can be more accurately identified through the identified stove type, the dish state and the cooking temperature, for example, when the cooking mode is stewing, the cooking temperature can be combined, and the specific identification cooking mode is slow stewing with small fire, stewing with medium fire or stewing with big fire.

Step S208, according to the cooking dishes and the cooking modes, a cooking temperature-oil smoke volume curve corresponding to the cooking dishes and the cooking modes in the database is called;

the database of the controller of the range hood is pre-stored with cooking temperature-oil smoke volume curves of different dishes and different cooking modes.

The cooking temperature-oil smoke volume curve in the database can be preset during production, can also be obtained from a cloud database through a network, or can be obtained through collection of a self-learning algorithm or other algorithms in the using process of the range hood. The data in the cloud database can be data uploaded by different users and shared to the cloud database, or shared databases obtained by sharing databases of range hoods of different users in a cloud space.

Step S209, pre-judging the oil smoke amount at the current cooking temperature according to the currently detected cooking temperature, namely the acquired cooking temperature-oil smoke amount curve;

because different types of dishes and different dishes have different oil smoke amounts in different cooking states, the initial pre-judgment can be carried out on the amount and the density of the oil smoke amount of the dish being cooked at present through the preset cooking temperature-oil smoke amount curve, so that a basis is provided for the wind power regulation of the range hood.

Step S210, adjusting the wind power of the range hood according to the pre-judged oil smoke amount;

because different dishes adopt different cooking modes and different oil smoke amounts generated in different cooking stages, the wind power of the range hood is adjusted through the current cooking temperature and the obtained cooking temperature-oil smoke amount curve, the wind power of the range hood can be effectively adjusted according to the current oil smoke amount and the trend of the future oil smoke amount, the smoking effect is improved, and the energy loss is reduced; meanwhile, the oil smoke amount is pre-judged through the cooking temperature-oil smoke amount curve, compared with the method of directly detecting the oil smoke amount, the oil smoke amount can be known in advance and wind power adjustment can be carried out, the problem of adjustment lag caused by detection and adjustment is avoided, the wind power adjustment effect is improved, and energy consumption is saved.

In this embodiment, the wind power adjustment may be performed in a stepless manner. In order to better adjust, the optimal wind power value under different oil smoke amounts can be obtained through modes of experiment, simulation or calculation and the like according to the model and the structure of the range hood, and an oil smoke amount-wind power curve is formed; the oil smoke quantity-wind power curve is built in the control system. And in the process of adjustment, obtaining a wind power value to be adjusted according to the pre-judged oil smoke amount and the oil smoke amount-wind power curve.

In another embodiment, the wind power adjustment may also be a segmented adjustment, that is, the wind power may be set to a plurality of different level values, each level value corresponds to a specific wind power value, and each level value corresponds to a different range of the amount of soot. And acquiring a grade value corresponding to the oil smoke amount according to the pre-judged oil smoke amount so as to adjust.

Step S211, determining whether cooking is finished, if not, returning to step S207, and if so, executing step S212;

step S212, detecting the temperature and/or the oil smoke amount of the cooking bench;

step S213, determining whether a preset shutdown condition is reached, if yes, executing step S214, otherwise, returning to step S212;

in this embodiment, the preset shutdown condition is: whether the temperature of the cooking bench is lower than a preset temperature or whether the oil smoke amount is lower than a preset oil smoke amount or whether the standby time is longer than a preset time.

This kind of setting can realize range hood's extension shutdown, guarantees the abundant pump drainage of oil smoke, avoids the oil smoke excessive, improves range hood's suction effect, improves user experience.

Step S214, the range hood is closed, and the image detection unit 1 is rotated to a standby state.

According to the control method provided by the embodiment, cooking dishes and cooking modes are identified, the oil smoke amount is pre-judged in real time by the existing cooking temperature and the oil smoke amount, the wind power value is adjusted according to the pre-judged oil smoke amount, the accuracy of adjusting the wind power value can be improved, the problem of insufficient suction or overlarge suction force caused by adjustment lag is avoided, and the energy waste is reduced while the oil smoke pumping effect of the range hood is improved.

Furthermore, during the cooking process, not only the cooking temperature-oil smoke amount curve is pre-judged in real time, but also the oil smoke amount is detected in real time, the oil smoke amount curve corresponding to the cooking temperature in actual cooking is obtained, the oil smoke amount detection value at a certain cooking temperature obtained actually is compared with the pre-judged oil smoke amount value at the cooking temperature, the deviation is corrected, the oil smoke amount detection value replaces the oil smoke amount preset value under the same cooking condition stored in the database, namely, the cooking temperature-oil smoke amount curve is corrected and updated in real time according to the actual detection result in the cooking process, and the corrected and updated cooking temperature-oil smoke amount curve is applied to wind power adjustment.

The arrangement can continuously correct the cooking temperature-oil smoke volume curve in the database, so that the cooking temperature-oil smoke volume curve can better meet the individual requirements of users,

it is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (18)

1. An image detection apparatus, characterized by comprising:

the image detection unit (1) comprises a camera (111) and a protective cover (12) fixedly wrapped on the outer side of the camera (111), wherein the protective cover (12) at least comprises a light-transmitting part (121) which is arranged opposite to the camera (111);

the light-transmitting part comprises a shell (21) and a light-transmitting part (121), wherein the shell is provided with a containing cavity (213), a wiping part (22) is arranged on the wall of the containing cavity (213), the protective cover (12) is rotatably connected with the shell (21) so that the light-transmitting part (121) can selectively rotate into the containing cavity (213) and be wiped and cleaned by the wiping part (22), and the light-transmitting part (121) can be completely exposed out of the shell (21).

2. The image detecting apparatus according to claim 1, wherein a reservoir chamber (214) and a control member are provided on the housing (21), a cleaning liquid is stored in the reservoir chamber (214), the reservoir chamber (214) has a liquid ejecting hole communicating with the accommodating chamber (213), and the control member can control the liquid ejecting hole to spray the cleaning liquid to the light-transmitting portion (121) rotated into the accommodating chamber (213).

3. The image detecting device according to claim 2, wherein the image detecting unit (1) is rotatably connected to the housing (21) via a rotating shaft (4), and the control member comprises a control rod (23), wherein the control rod (23) is in transmission connection with the rotating shaft (4) so that the rotating shaft (4) can rotate to drive the control rod (23) to selectively press the cavity wall of the accommodating cavity (213) to eject the cleaning liquid.

4. The image detection device according to claim 3, wherein the control lever (23) is rotatably connected to the housing (21) through a mounting shaft, a sector gear (24) is sleeved on the rotating shaft (4), a driven gear (25) is sleeved on the mounting shaft, and the sector gear (24) can be meshed with the driven gear (25).

5. The image detection apparatus according to claim 2, wherein a drain hole (216) is provided at the lowest position of the wall of the housing chamber (213), and the drain hole (216) is located below the liquid ejection hole;

and/or a liquid adding port (215) is arranged on one side of the shell (21) far away from the image detection unit (1), and the liquid adding port (215) is communicated with the liquid storage cavity (214);

and/or a nozzle (26) is arranged at the liquid spraying hole, and the nozzle (26) can be opened under the squeezing action of the cleaning liquid.

6. The image detection apparatus according to any one of claims 2 to 5, wherein the accommodating chamber (213) has a main chamber wall in a circular arc shape, the main chamber wall is provided around an outer side of the protection cover (12) and is coaxial with a rotation axis of the protection cover (12), the main chamber wall is provided with a liquid ejection region (213a) and a wiping region (213b) in sequence along a rotation direction of the protection cover (12), the liquid ejection region (213a) is provided with a plurality of liquid ejection holes, and the wiper (22) is provided in the wiping region (213 b).

7. The image detection apparatus according to claim 6, wherein a waiting area (213c) is provided in the housing chamber (213), the waiting area (213c) is located on a side of the wiping area (213b) away from the liquid ejection area (213a), and the light-transmitting portion (121) is capable of turning into the waiting area (213c) and coming out of contact with the wiper (22).

8. The image detection device according to any one of claims 1 to 5, wherein the protective cover (12) is a spherical structure, and an optical axis of the camera (111) passes through a spherical center of the spherical structure.

9. The image detection apparatus according to any one of claims 1 to 5, wherein the housing (21) includes a mounting bottom plate portion (211) and a semi-cylindrical tube portion (212), both ends of the tube portion (212) in a circumferential direction are connected to the mounting bottom plate portion (211), the tube portion (212) and the mounting bottom plate portion (211) surround to form the housing chamber (213), the image detection unit (1) is rotatably inserted into the mounting bottom plate portion (211), and the wiper (22) is provided on an inner surface of the tube portion (212).

10. The image detection apparatus according to any one of claims 1 to 5, further comprising a drive unit (3), a drive shaft of the drive unit (3) being connected to a rotation shaft (4) of the image detection unit (1).

11. A range hood, comprising a smoke collecting hood (20), and further comprising an image detecting device according to any one of claims 1 to 10, wherein a detecting hole is opened at the bottom of the smoke collecting hood (20), the image detecting device is installed inside the smoke collecting hood (20), and the light transmission part (121) can be exposed out of the smoke collecting hood (20) through the detecting hole.

12. The range hood according to claim 11, wherein a maintenance opening is opened on a hood top plate of the smoke collecting hood (20), the maintenance opening is positioned right above the image detection device, and a maintenance cover (204) is arranged at the maintenance opening.

13. The range hood according to claim 11, wherein the range hood is a ceiling-mounted dual-chamber range hood, the image detection device is located between two smoke inlet chambers (203) which are arranged side by side left and right, and the image detection device is located at the front side of the smoke collecting hood (20).

14. The range hood according to claim 12, wherein when the image detection unit (1) is in an operating state, the optical axis of the camera (111) is vertically arranged;

and/or when the image detection unit (1) is in a working state, the detection end face of the camera (111) is flush with the lower end edge of the detection hole.

15. A control method of a range hood, which is applied to the range hood as claimed in any one of claims 11 to 14, the control method comprising:

when the cooking bench is detected to be in a cooking state, controlling the image detection unit (1) to keep or rotate to a working state;

when the range hood is closed, the image detection unit (1) is controlled to rotate, so that the light-transmitting part (121) passes through the wiping piece (22) and is contained in the containing cavity (213).

16. The control method according to claim 15, wherein cooking temperature-oil smoke volume curves of different dishes and different cookings are built in the range hood, and the control method further comprises:

when the cooking state is achieved, the cooking temperature is detected in real time, and the image detection unit (1) shoots the cooking bench in real time;

identifying cooking dishes and cooking modes in real time according to the shot result;

acquiring a corresponding cooking temperature-oil smoke volume curve according to the identified cooking dishes and the cooking modes;

according to the detected cooking temperature, pre-judging the oil smoke amount based on the cooking temperature-oil smoke amount curve;

and adjusting the suction wind power of the range hood according to the pre-judged oil smoke amount.

17. The control method according to claim 16, characterized by further comprising: and when the cooking state is in, detecting the cooking temperature and the oil smoke amount in real time, and correcting the cooking temperature-oil smoke amount curve in real time based on the detected oil smoke amount and the difference of the calculated oil smoke amount under the same cooking temperature.

18. The control method according to claim 16, wherein after cooking is finished, whether the temperature of the cooking bench, the detected amount of oil smoke or the standby time after finishing meet a preset shutdown condition is judged, and if yes, the range hood is shut down.

Images