CN220551978U - Fume exhauster - Google Patents

Abstract

The embodiment of the application provides a range hood, relates to the technical field of kitchen appliances, and solves the problem of oil smoke escape. The range hood comprises: the smoke collecting hood comprises a smoke machine main body, a smoke collecting hood and a smoke guide plate; the fume collecting hood is arranged below the fume extractor main body and communicated with the fume channel inside the fume extractor main body. The bottom of the fume collecting hood is provided with a fume guide plate, and the fume guide plate is connected with the bottom of the fume collecting hood through a base of the fume guide plate. The turning plate of the smoke guide plate is connected with the base through a rotating shaft, and the angle of the turning plate is adjustable. An installation cavity is formed between the base and the cover plate of the smoke guide plate, and the air curtain generating system is arranged in the cavity; the base is provided with an air inlet and an air outlet, and the air curtain generating system is used for sucking external air through the air inlet and discharging the external air through the air outlet; wherein, the air that the air outlet was discharged is located the internal surface one side of turning over the board. The range hood is used for exhausting oil smoke.

Description

Fume exhauster

Technical Field

The application relates to the technical field of kitchen appliances, in particular to a range hood.

Background

With the development of scientific technology, the application of the range hood is more and more popular, and the range hood has become one of the indispensable kitchen household appliances in modern families.

The existing range hood on the market mainly gathers oil smoke through smoke gathering structures such as a smoke collecting cover and the like, and then absorbs the oil smoke through a negative pressure area formed by a fan and discharges the oil smoke.

Because the structure of the negative pressure area used for forming in the range hood is fixed, the size of the negative pressure is fixed, and the smoke collecting area of the smoke collecting cover is fixed, the amount of the oil smoke absorbed and discharged by the range hood is also fixed, and the size of the oil smoke generated by a kitchen is different according to different use scenes. Therefore, when the oil smoke is large, the existing oil smoke absorbing machine can generate the oil smoke escaping phenomenon, so that the oil smoke absorbing effect is poor.

Disclosure of Invention

The embodiment of the application provides a range hood, solves the problem of oil smoke escape, promotes the range hood in the main direction of oil smoke escape's the effect of gathering fume.

In order to achieve the above object, some embodiments of the present disclosure provide the following technical solutions:

the range hood comprises: the smoke collecting hood is arranged below the smoke machine body and is communicated with the smoke channel. The smoke guide plate sets up in the bottom of collection petticoat pipe, and the smoke guide plate includes: the device comprises a base, a turning plate, a rotating shaft, a cover plate and an air curtain generating system; the base is connected with the fume collecting hood, and the base is connected with the turning plate. The flap can be turned over relative to the base so that the angle between the base and the flap is adjustable. The cover plate is connected with the base to form a cavity, and the air curtain generating system is positioned in the cavity and is used for exhausting air to one side of the turning plate, which is close to the center of the fume collecting hood, so as to form an air curtain; the air curtain generating system can adjust the direction of the air curtain by matching the overturning angle of the overturning plate.

The range hood that some embodiments of this application provided can block the oil smoke escape through set up the smoke guide plate in collection petticoat pipe below to, turn over the board and can overturn for the base, the base with turn over the angle between the board and can overturn the regulation according to the escape direction of oil smoke. The oil smoke is blocked when escaping to the turning plate of the smoke guide plate, so that the oil smoke is turned to the lower part of the main body of the range hood, more oil smoke can be sucked by the range hood, the area of the smoke collecting area of the range hood is increased, and the smoking effect is improved.

In some embodiments, the smoke-guiding plate further comprises: the rotating shaft, the base and the turning plate are connected through the rotating shaft. The base of the smoke guide plate includes: the first bottom plate is connected with the bottom of the fume collecting hood; the second bottom plate is connected with the first bottom plate, an included angle is formed between the first bottom plate and the second bottom plate, the second bottom plate is connected with the turning plate, and the angle between the turning plate and the second bottom plate is smaller than 180 degrees; the first side edge of the first bottom plate is connected with the first side edge of the second bottom plate; the second side of the first bottom plate is connected with the second side of the second bottom plate.

In some embodiments, the base of the smoke guide plate is provided with an air inlet and an air outlet; the air curtain generating system is used for sucking external air through the air inlet and discharging the external air through the air outlet; wherein, the air that the air outlet discharged is located and turns over the board and is close to the internal surface one side of collection petticoat pipe.

In some embodiments, an air duct is arranged in the base of the smoke guide plate, and the air duct is communicated with the air outlet; the air curtain generating system comprises: the air inlet of the axial flow fan is correspondingly arranged with the air inlet, and the air outlet of the axial flow fan is communicated with the air duct; the axial flow fan sucks air through the air inlet, presses the air into the air duct, and discharges the air through the air outlet; the control panel is connected with axial fan electricity for control axial fan opens or closes.

In some embodiments, the air curtain generating system further comprises: an infrared sensor; the infrared sensor is used for collecting temperature data and transmitting the temperature data to the control panel; the control panel is used for controlling the opening of the axial flow fan when the temperature data is greater than or equal to a set value.

In some embodiments, the air curtain generating system further comprises: a switch board, the switch board comprising: the air curtain automatic key is used for controlling the air curtain generating system to compare temperature data with a set value according to a control panel, and automatically controlling whether the axial flow fan works or not.

In some embodiments, the cover plate of the smoke guide plate is provided with an opening, and the infrared sensor is arranged opposite to the opening.

In some embodiments, the flap includes oppositely disposed inner and outer surfaces, the inner surface being proximate the oil smoke channel relative to the outer surface. The smoke-guiding plate further comprises: the sponge is arranged on one side of the inner surface of the turning plate.

In some embodiments, the smoke-guiding plate further comprises: the base and the bottom of the fume collecting hood are connected through the connecting structure, and the sealing cotton is arranged between the base plate and the fume collecting hood.

In some embodiments, the range hood comprises a hood body, a fume collecting hood and a fume guide plate, wherein a fume channel is arranged in the hood body, the fume collecting hood is arranged below the hood body, the fume collecting hood is communicated with the fume channel, and the fume guide plate is arranged at the bottom of the fume collecting hood; the smoke-guiding plate includes: the base is connected with the bottom of the fume collecting hood, and the turning plate is connected with the base; the air curtain generation system is used for exhausting air to one side of the turning plate, which is close to the center of the fume collecting hood, so as to form an air curtain; the smoke guide plate is used for enlarging a smoke collecting area, adjusting the smoke collecting area according to the escape direction of the smoke, and adjusting the air curtain direction so as to prevent the escape of the smoke.

Some embodiments of the present disclosure provide a range hood that achieves the benefits of improving smoking.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate and do not limit the utility model.

Fig. 1 is a side view of a whole structure of a range hood according to an embodiment of the present application;

fig. 2 is a front view of the internal structure of the whole range hood according to the embodiment of the present application;

fig. 3 is a perspective view of the whole structure of the range hood according to the embodiment of the present application;

fig. 4 is a schematic diagram of a lampblack diffusion direction according to an embodiment of the present disclosure;

fig. 5 is another schematic diagram of a lampblack diffusion direction provided in an embodiment of the present application;

FIG. 6 is an exploded view of a smoke guide plate according to an embodiment of the present disclosure;

fig. 7 is a schematic view of a turning plate and a rotating shaft according to an embodiment of the present application;

FIG. 8 is a schematic view of a base and cover plate according to an embodiment of the present disclosure;

fig. 9 is a schematic diagram of a turnover angle of a turnover plate according to an embodiment of the present application;

fig. 10 is an enlarged view of area a of fig. 9;

FIG. 11 is a block diagram of a connecting structure and a sealing cotton according to an embodiment of the present application;

fig. 12 is a schematic view of a rotating shaft, a turning plate and a sponge according to an embodiment of the present application;

FIG. 13 is a block diagram of an air curtain generation system according to an embodiment of the present disclosure;

fig. 14 is a schematic diagram of an air inlet and an air outlet in a base plate according to an embodiment of the present disclosure;

FIG. 15 is an enlarged detail view of an air intake according to an embodiment of the present disclosure;

fig. 16 is a side view of a smoke guide provided in an embodiment of the present application;

FIG. 17 is a side view of a smoke guide plate coupled to a smoke collecting hood according to an embodiment of the present application;

fig. 18 is a perspective view of a smoke guide plate according to an embodiment of the present disclosure;

FIG. 19 is a diagram of an air curtain generation system according to an embodiment of the present disclosure;

fig. 20 is a schematic diagram of a key in a switch board according to an embodiment of the present application.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings in which embodiments of the present utility model are shown, it being apparent that the embodiments described are only some, but not all, of the embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the inventors, are within the scope of the present application based on the embodiments herein.

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

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

In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context. In addition, when describing a pipeline, the terms "connected" and "connected" as used herein have the meaning of conducting. The specific meaning is to be understood in conjunction with the context.

In the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment of the present application is not to be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

The range hood is a kitchen cleaning type household appliance for purifying the kitchen environment. The fume generated by the fume extractor during cooking contains a plurality of substances harmful to human bodies, and on the other hand, the fume extractor is easy to cause the kitchen environment to become greasy and not easy to clean, so the fume extractor becomes a necessary machine for changing the kitchen environment.

The range hood is arranged above the kitchen range, combustion waste which is generated when the kitchen range burns during cooking can be generated, the range hood can rapidly pump away the waste which is generated when the kitchen range burns and the oil smoke which is harmful to human bodies and is generated in the cooking process, and the range hood is discharged outdoors, so that the combustion waste and the oil smoke which is harmful to the human bodies are prevented from being diffused indoors. The advantage of doing so is that the range hood is adopted to collect the oil smoke in a condensing way, so that the indoor air pollution is reduced. The range hood can play a role in purifying air and also play a role in protecting against toxicity and explosion. In addition, the environment of the kitchen is changed, and the damage of the oil smoke to the environment of the kitchen and the health of human bodies is reduced.

The range hood is fixed through a negative pressure area formed by the fan, the size of the negative pressure is fixed, the amount of the adsorbed and discharged oil smoke is also fixed, and the size of the oil smoke is different according to different use scenes. Therefore, when the oil smoke is large, the existing range hood is insufficient in absorption capacity, and the oil smoke escape phenomenon can occur, so that the smoking effect is poor. On the other hand, the range hood is generally designed in a hanging mode, the range hood is relatively high in height from a cooking bench, and when the range hood rises, the range hood is small in smoke collecting area and easy to escape.

Based on the above, the embodiment of the utility model provides a range hood, wherein a smoke guide plate is arranged in the range hood, so that the problem of oil smoke escape is solved, and the smoking effect of the range hood in the main occurrence direction of oil smoke escape is improved.

In some embodiments, as shown in fig. 1, 2 and 3, a range hood 1000 provided herein includes a hood main body 1, a fume collecting hood 2 and a fume guide plate 3, where a fume collecting hood 2 is disposed below the hood main body 1, and the fume collecting hood 2 is communicated with the fume collecting hood 3.

As shown in fig. 1 and 2, the tobacco machine main body 1 includes: a frame 11, a fan assembly 12 and a smoke outlet assembly 13. The fan assembly 12 and the cigarette discharging assembly 13 are both arranged in the cigarette machine main body 1, and the fan assembly 12 comprises: the volute 111, an impeller 112 provided in the volute 111, and a motor 113 for driving the impeller 112 to rotate relative to the volute 111, and the smoke outlet assembly 13 communicates with an air outlet of the volute 111.

The motor 113 is a core part of the range hood, and when the motor 113 drives the impeller 112 to rotate, air in the housing 11 can be discharged outside through the smoke discharging assembly 13, thereby generating a negative pressure region in the housing 11. At this time, the oil smoke can be sucked into the frame 11 by the negative pressure area, then oil-gas separation is carried out in the frame 11, grease particles are condensed into oil drops and then collected by an oil way, and the purified smoke is discharged outside to form an oil smoke channel.

Meanwhile, in order to accommodate the less discharged oil smoke, the range hood 1000 further includes a fume collecting hood 2 as shown in fig. 1, 2 and 3, and the fume collecting hood 2 may be disposed under the hood body 1. The smoke collecting cavity is formed in the smoke collecting cover 2, one end of the smoke collecting cover 2, which is close to the main body 1 of the smoke machine, is the top of a funnel-shaped structure and is connected with the air duct opening 14 of the main body 1 of the smoke machine.

The end of the fume collecting hood 2 far away from the fume collecting hood main body 1 is an opening with a funnel-shaped structure, so that fume can enter and be contained in the fume collecting hood 2. At this time, the oil smoke can be contained in the fume collecting hood 2 under the action of negative pressure, and the phenomenon of overflowing and diffusing a large amount of oil smoke is prevented.

As shown in fig. 3, the air duct opening 14 is disposed directly above the smoke rising and also disposed at the center of the bottom of the frame 11 of the main body 1 of the range hood 1000, and the air duct opening 14 is an inlet for the smoke to enter the smoke channel of the range hood 1000. When the range hood 1000 is opened to operate, waste generated by combustion in a stove and oil smoke harmful to a human body during cooking can be rapidly sucked into the frame 11 of the range hood 1000.

In the operation process of the range hood 1000, the range hood 1000 can generate a large amount of noise, and the long-term cooking under the noise can bring adverse reactions such as dizziness, dysphoria, palpitation and the like to a user, so that the use experience of the user is seriously affected. The main noise sources of the range hood 1000 are the fan assembly 12, and the noise of the fan assembly 12 includes the fluid noise generated in the air duct of the fan assembly 12, and the noise of the motor 113, the impeller 112, and the like. Therefore, when the range hood 1000 is used, the silencing plate is arranged on the inner wall of the frame 11 of the range hood 1000, and silencing cotton is arranged in the silencing plate. Noise generated by the fan assembly 12 is absorbed by the noise reduction cotton, thereby achieving the purpose of reducing noise.

As shown in fig. 3, the range hood further includes: the oil screen device 15 is arranged at the bottom of the smoke machine main body 1, and the oil screen device 15 is arranged at the center of the smoke collecting hood 2; the surface of the oil screen device 15 is provided with a plurality of small holes, so that the oil smoke can conveniently enter the main body 1 of the smoke machine from the air duct opening 14 through the oil screen device 15. The oil net device 15 can filter the oil fume entering the main body 1 of the range hood, the oil net device 15 is tightly connected with the fume collecting hood 2, the problem of air leakage can not occur, and the fume absorbing effect is improved.

Based on the structure of the range hood 1000, when the range hood 1000 works, the motor 113 is controlled to drive the impeller 112 to rotate, so that the impeller 112 can discharge the air in the frame 11 to the outside through the smoke outlet assembly 13, thereby generating a negative pressure area in the frame 11. The rising oil smoke can enter the frame 11 through the fume collecting hood 2 under the suction of the negative pressure area. Then, oil and gas separation is carried out on the oil smoke under the centrifugal action of the impeller 112, grease particles in the oil smoke are thrown to the inner wall of the oil smoke channel by virtue of centrifugal force, and are condensed into oil drops to be collected by an oil way, and the purified smoke is discharged outside through the smoke outlet component 13 after being accelerated by the impeller 112.

As shown in fig. 4, most of the oil smoke rises vertically upward, the range hood 1000 concentrates the suction force in the area right below the oil smoke generating point, and concentrates almost all the force to suck the generated oil smoke before the generated oil smoke is not diffused. However, the bottom area of the main body 1 of the range hood 1000 is fixed, the smoke collecting area is also fixed, and part of the smoke rises vertically and upwards, and the part of the smoke which is not absorbed can not be completely absorbed by the range hood 1000 and escapes from the bottom of the smoke collecting hood 2 of the range hood 1000 to the outside.

Thus, in some embodiments, the range hood 1000 as shown in fig. 3 and 5 further includes a smoke guide plate 3, the smoke guide plate 3 being disposed at the bottom of the smoke collecting hood 2.

As shown in fig. 3, 6 and 7, the smoke guide plate 3 comprises a base 31, a turning plate 32 and a rotating shaft 33, the base 31 and the turning plate 32 are connected through the rotating shaft 33, and the base 31 is connected with the bottom of the smoke collecting hood 2. The flap 32 can be flipped relative to the base 31 such that the angle between the base 31 and the flap 32 is adjustable.

Through setting up smoke guide plate 3 in collection petticoat pipe 2 below, block in the oil smoke escape direction, not by being stopped when the oil smoke escape of direct perpendicular suction collection petticoat pipe 2 to the smoke guide plate 3 position, the rising direction of oil smoke changes to the center towards collection petticoat pipe 2, is close to the direction of air duct mouth 14 promptly, and this part oil smoke is taken away by the range hood to reach and block the oil smoke escape, increase the area of gathering fume, promote the effect of smoking effect. And, turn over the board 32 in the smoke guide plate 3 and can overturn for the base 31, the angle between base 31 and the board 32 of turning over can overturn and adjust according to the escape direction of oil smoke, receives to block when the board 32 is turned over to the smoke guide plate 3 to the oil smoke escape, makes the oil smoke turn to cigarette machine main part 1 below for more oil smoke can be inhaled by range hood 1000, thereby promotes smoking effect.

In some embodiments, the smoke guide plate 3 is located in the main direction of escape of the smoke, for example, as shown in fig. 3, the smoke guide plate 3 is provided at the edge of the bottom of the smoke collecting hood 2 and in front of the smoke collecting hood 2. The smoke guide 3 is illustratively located on the user facing side. By arranging the specific position of the smoke guide plate 3 relative to the smoke collecting hood 2, the smoke can be pertinently blocked according to the main direction of the escape of the smoke, and the escape of the smoke to the direction of a user is avoided, so that the influence on the user is caused.

In some embodiments, the base 31 of the smoke guide 3 as shown in fig. 6, 8 comprises: the first bottom plate 311, the second bottom plate 312, the first side plate 313 and the second side plate 314, wherein the first bottom plate 311 is connected with the bottom of the fume collecting hood 2, and the second bottom plate 312 is connected with the turning plate 32; the first bottom plate 311 is connected to the second bottom plate 312, and an included angle is formed between the first bottom plate 311 and the second bottom plate 312. For example, as shown in fig. 9, the first bottom plate 311 extends in a horizontal direction, the second bottom plate 312 extends in a vertical direction, and a right angle is formed between the first bottom plate 311 and the second bottom plate 312.

The first side plate 313 and the second side plate 314 are disposed opposite to each other, the first side plate 313 is connected to the first side of the first bottom plate 311 and the first side of the second bottom plate 312, and the second side plate 314 is connected to the second side of the first bottom plate 311 and the second side of the second bottom plate 312.

As shown in fig. 5, if the opening angle of the flap 32 is too large, for example, the flap 32 is located on the side, away from the air duct opening 14, of the plane of the second bottom plate 312, that is, when the flap 32 is turned to the user side, the escaping oil smoke will diffuse along the flap 32 toward the user, and the effect of the flap 32 blocking the oil smoke will be affected.

As shown in fig. 9, the angle c between the turning plate 32 and the second bottom plate 312 is smaller than 180 °, so that the maximum opening position of the turning plate 32 is located on one side of the plane where the second bottom plate 312 is located, which is close to the air duct opening 14, so that the turning plate 32 can effectively block escaping oil smoke, the oil smoke is turned to the air duct opening 14, and the effect of gathering the oil smoke is enhanced.

Further, as shown in fig. 9, the angle a between the flap 32 and the first bottom plate 311 of the base 31 is smaller than 90 °. The opening angle b of the turning plate 32 is smaller than or equal to 100 degrees, so that the included angle between the turning plate 32 and the main rising direction (vertical direction) of the lampblack is set to be larger than or equal to 5 degrees, and meanwhile, the included angle is set to be smaller than or equal to 30 degrees, and therefore the effect of blocking the lampblack diffusion and gathering the lampblack by the turning plate 32 can be further enhanced.

As shown in fig. 6 and 8, two rotating shaft channels are provided on a side of the second bottom plate 312 connected to the flap 32, namely, a first rotating shaft channel 315 and a second rotating shaft channel 316, and the first rotating shaft channel 315 and the second rotating shaft channel 316 are respectively located at two ends of the side. As shown in fig. 6, 7 and 12, a third rotation shaft channel 317 is provided on a side of the flap 32 connected to the second bottom plate 312, the third rotation shaft channel 317 is located at a middle portion of the side, a middle portion of the rotation shaft 33 is inserted into the third rotation shaft channel 317, and both ends thereof are respectively inserted into the first rotation shaft channel 315 and the second rotation shaft channel 316, thereby connecting the second bottom plate 312 and the flap 32 through the rotation shaft 33.

In some embodiments, the rotation shaft 33 is a damping rotation shaft, through which a certain resistance exists in the process of turning the turning plate 32 relative to the second bottom plate 312, so that the turning plate 32 can be prevented from swinging due to overlarge suction force of the range hood in the use process while the angle of the turning plate 32 is adjusted, and the smoke collecting area is unstable, so that the oil smoke escapes.

The rotation shaft 33 is a damping rotation shaft, and when the turning plate 32 rotates, the rotation shaft 33 is driven to rotate. Because the both ends of axis of rotation 33 are fixed on the first pivot passageway 315 and the second pivot passageway 316 of base 31, and base 31 passes through axis of rotation 33 and turns over the board and link to each other, and base 31 supports the board 32, turns over when board 32 rotates, turns over board 32 and axis of rotation 33 and rubs to produce the resistance, the damping pivot not only can realize fine resistance effect, simple structure, with low costs moreover, the consumer of being convenient for uses.

In some embodiments, as shown in fig. 6, 8 and 9, the smoke-guiding plate 3 further comprises a cover plate 34, four sides of the cover plate 34 are connected with the base 31, and the cover plate 34 and the base 31 form a cavity. Illustratively, the base 31 and cover 34 form a triangular prism-like structure.

As shown in fig. 10, fig. 10 is an enlarged view of a region a in fig. 9, a step structure T is provided at the edge where the first bottom plate 311 of the base 31 is connected to the cover 34, and the shape of the step structure T is matched with the cover 34, so that the base 31 and the cover 34 can be tightly combined, and the cover 34 is prevented from shaking due to mismatch of the connection part.

In some examples, in the euro-type flat-panel smoke machine, the angle between the turning plate 32 and the cover plate 34 is less than or equal to 100 degrees, so that the opening angle of the turning plate 32 is controlled to be in a proper range, and the effect of blocking the lampblack is ensured.

In some embodiments, the smoke guide plate 3 further comprises a connection structure 35 as shown in fig. 6 and 11, and the base 31 and the bottom of the smoke collecting hood 2 are connected by the connection structure 35.

The first bottom plate 311 of the base 31 is provided with a connecting structure 35, the connecting structure 35 is fixedly arranged on the base 31, and the base 31 can be connected to the bottom of the fume collecting hood 2 through the connecting structure 35. Illustratively, the connection structure includes a magnet 352 and a magnet mounting structure 351, where the fume collecting hood 2 and the base 31 are made of metal, and the base 31 can be magnetically attracted to the bottom of the fume collecting hood 2 by the magnet 352. Illustratively, the attachment structure 35 includes an adhesive, such as a fixing glue, double sided glue, vacuum mount, etc., by which the base may be adhered to the bottom of the hood 2.

The first base plate 311 is provided with a magnet mounting structure 351 thereon, and as illustrated in fig. 6 and 11, the smoke guide plate includes two magnets and two magnet mounting structures 351, the two magnet mounting structures 351 are respectively located at both ends of the first base plate 311, and the two magnets 352 are respectively mounted in the two magnet mounting structures 351. The fixing mode of the magnet 352 is adopted, the structure is simple and convenient, the taking and the flexibility are realized, and the installation and the disassembly of the smoke guide plate can be convenient. Different connection structures 35 can be matched with different types of range hoods, and can be detached or installed according to the requirements of users, so that the use of the range hood is not affected.

In some embodiments, as shown in fig. 9, flap 32 includes oppositely disposed inner and outer surfaces 318, 319, with inner surface 318 being proximate to the cooking fume passageway relative to outer surface 319; the smoke guide plate 3 further comprises a sponge 36, and the sponge 36 is arranged on one side of the inner surface 318 of the turning plate 32.

As shown in fig. 12, 16 and 17, the flap 32 has a certain thickness, and a fixed mounting cavity 37 is provided on the flap 32, and the sponge 36 is placed in the fixed mounting cavity 37. The sponge 36 plays a role in absorbing oil and reducing noise, and prevents oil formed by condensation on the surface of the smoke guide plate 3 from falling down. The sponge 36 is detachable, and the range hood is convenient to replace and clean after use. If the range hood has long service life, a small oil storage box can be designed in the fixed mounting cavity 37, so that oil formed by condensation on the surface of the smoke guide plate can be collected, and the oil collecting effect is further achieved.

In some embodiments, as shown in fig. 8 and 14, the base 31 is provided with an air inlet 39 and an air outlet 40. The base 31 includes a first bottom plate 311, a second bottom plate 312, a first side plate 313 and a second side plate 314, the cover 34 is connected to the base 31, and the cover 34 and the base 31 form a cavity.

As shown in fig. 14 and 15, the first bottom plate 311 is provided with an air inlet 39, for example, one air inlet 39 is provided, and the air inlet 39 includes a main hole and auxiliary holes located at two sides of the main hole, so as to increase the size of the air inlet and increase the air intake.

It will be appreciated that there is a gap between the first floor 311 and the bottom of the hood 2 through which ambient air can enter the air inlet and reach the cavity.

In some embodiments, as shown in fig. 9, the smoke guide 3 further comprises: the sealing cotton 42, the sealing cotton 42 is disposed between the first bottom plate 311 of the base 31 and the bottom of the fume collecting hood 2.

The sealing cotton 42 is used for blocking the oil smoke from entering the air inlet 39 and preventing the oil smoke from polluting the air duct 41 in the smoke guide plate 3. The sealing cotton 42 can be designed according to different cigarette machine structures. The sealing cotton 42 also has a protective effect and prevents the surface of the smoke guide plate 3 and the smoke collecting cover 2, which is contacted with each other, from being damaged due to overlarge magnet attraction.

Further, filter cotton, a filter screen and the like can be arranged above the air inlet 39 to further protect the air duct 41 inside the smoke guide plate 3 from oil smoke pollution.

As shown in fig. 14, the second bottom plate 312 is provided with a plurality of air outlets 40, for example, the plurality of air outlets 40 are arranged along the same direction, the plurality of air outlets 40 are led to the outside from the inside of the cavity of the smoke guiding plate 3, and the air discharged from the air outlets 40 is located at one side of the inner surface 318 of the flap. The plurality of outlets 40 are uniform in depth and size to form a uniform and continuous curtain of air.

As shown in fig. 13 and 18, the smoke-guiding plate 3 further comprises an air curtain generating system 4, and the air curtain generating system 4 is located in the cavity formed by the cover plate 34 and the base 31. The air curtain generating system 4 is adapted to draw in outside air through the air inlet 39 and to exhaust it through said air outlet 40.

Wherein, the air discharged from the air outlet 40 is positioned at one side of the inner surface 318 of the turning plate 32, so that the air blown out from the air outlet 40 can blow the oil smoke to the lower part of the smoke collecting cavity of the smoke collecting cover 2.

By arranging the smoke guide plate 3 below the smoke collecting cover 2, blocking in the escape direction of the smoke, and arranging the air curtain generating system 4 in the smoke guide plate 3, a new flow field can be formed inside the smoke guide plate 3 by sucking external air and discharging the air from the air outlet 40, so as to guide the smoke to change the advancing direction.

Like this, when the oil smoke takes place to escape, under the dual effect of turning over board 32 and wind curtain generating system 4, the oil smoke rising direction is changed and is turned to collection cigarette chamber below, further reduces the probability that the oil smoke escaped for more oil smoke can be inhaled by the range hood, thereby realizes range hood draws in the area increase of cigarette area, promotes smoking effect.

In some embodiments, as shown in fig. 16 to 18, an air duct 41 is provided in the base 31, and the air duct 41 communicates with the air outlet 40. Illustratively, the second bottom plate 312 has a certain thickness, and the air duct 41 is provided in the second bottom plate 312 for circulating air in the air duct 41 so that the air is more smoothly discharged from the air outlet 40.

As shown in fig. 18 and 19, the air curtain generating system 4 includes: the air inlet of the axial flow fan 43 is correspondingly arranged with the air inlet 39, and the air outlet of the axial flow fan 43 is communicated with the air duct 41; the axial flow fan 43 sucks air through the air inlet 39, presses the air into the air duct 41, and discharges the air through the air outlet 40.

The control board 44 is electrically connected to the axial flow fan 43 for controlling the axial flow fan 43 to be turned on or off.

The axial flow fan 43 comprises an air inlet and an air outlet, when the axial flow fan 43 works, ambient air can form air flow, external air is sucked in through the air inlet 39 and is pressed into the air duct 41 to be discharged through the air outlet 40, and under the action of the axial flow fan 43, the smoke guide plate 3 can form a uniform and continuous air curtain towards one side of the smoke collecting cavity, and the smoke guide plate can continuously feed smoke and oil to block the escape of smoke.

In some embodiments, the air curtain generating system 4 further comprises: an infrared sensor 45, wherein the infrared sensor 45 is used for collecting temperature data and transmitting the temperature data to the control board 44; the control board 44 is used for controlling the axial flow fan 43 to be turned on when the temperature data is greater than or equal to the set value.

The air curtain generating system 4 is used for sucking in external air through the air inlet 39 and discharging the external air through the air outlet 40 when the oil smoke value is detected to be larger than the set oil smoke value.

The infrared sensor 45 is arranged in the cavity and on the base 31, and the sensing surface of the infrared sensor 45 is parallel to the plane of the cover plate, so that shielding is reduced, the sensing surface can be exposed to the greatest extent, and temperature data can be collected conveniently.

In some embodiments, as shown in fig. 19, an opening 50 is provided in the cover 34, and the infrared sensor 45 is disposed opposite the opening 50. The opening 50 is used for transmitting light to the infrared sensor 45, so that temperature data acquired by the infrared sensor 45 is more accurate.

The number of the infrared sensors 45 is related to the number of the kitchen ranges corresponding to the range hood, for example, in the case that the number of the kitchen ranges is two, the infrared sensors 45 can be arranged in two and respectively correspond to the two kitchen ranges; the infrared sensor 45 can be arranged only one, and the two stoves are respectively and independently used by moving the installation position of the smoke guide plate 3.

The oil smoke is related to the temperature of the area where the oil smoke is generated, and when the temperature collected by the infrared sensor 45 is greater than the set value, the condition that the oil smoke is too large at the moment is indicated, and the axial flow fan 43 needs to be started in time so as to enhance the effect of the smoke guide plate 3 on blocking the oil smoke.

When the temperature collected by the infrared sensor 45 is less than the set value, it indicates that the oil smoke is not large or does not escape temporarily at the moment, and the oil smoke can be blocked only by the turning plate 32 without starting the axial flow fan 43.

Through setting up infrared sensor 45 real-time sensing temperature, judge the oil smoke size, whether according to oil smoke size intelligent control axial fan 43 open, whether control air curtain generation system 4 begins the operation, on the basis that further promotes smoking effect, intelligent regulation air curtain open time reduces the consumption.

As shown in fig. 18 and 19, the air curtain generating system 4 further includes a battery 47, the air curtain generating system 4 is mainly loaded by the axial flow fan 43 and the infrared sensor 45, the battery 47 is used for supplying power to the axial flow fan 43 and the infrared sensor 45, and the battery 47 is installed in a cavity formed by the base 31 and the cover 34. The battery 47 is protected from direct contact with the oil smoke, causing functional damage, affecting the life.

In some embodiments, as shown in fig. 20, the smoke-guiding plate 3 further comprises a switch plate 46, the switch plate 46 comprising: a power button 322, an air curtain opening button 321, and an air curtain automatic button 320. The power button 322 is used for controlling the air curtain generating system 4 to be turned on or turned off; the air curtain opening key 321 is used for controlling the air curtain generating system 4 to continuously operate; the air curtain automatic button 320 is used for controlling the air curtain generating system 4 to automatically control whether the axial flow fan 43 works according to the comparison of the temperature data and the set value by the control board 44.

When the user uses the air curtain generating system, the user needs to click the power button 322 to control the air curtain generating system 4 to be started, and then the corresponding function is selected according to the requirement.

If the kitchen oil smoke is continuously oversized in the time period, the working state of the axial flow fan 43 does not need to be changed according to the oil smoke, and then the air curtain opening key 321 is clicked, so that the air curtain generating system 4 continuously operates, an air curtain can be continuously formed to achieve a stronger oil smoke blocking effect, and the infrared sensor 45 does not work.

If the kitchen oil smoke size changes in the time period, the working state of the axial flow fan 43 needs to be changed, the air curtain automatic key 320 is clicked, so that the air curtain generating system 4 intelligently controls whether the axial flow fan 43 works according to the oil smoke size, the infrared sensor 45 continuously works at the moment, temperature data are collected, and the collected temperature data are sent to the control panel 44. The control board 44 compares the temperature data with the set value, and when the temperature collected by the infrared sensor 45 is greater than the set value, the control board 44 controls the axial flow fan 43 to be started to supply air to the inner side of the smoke guide plate 3, and when the temperature collected by the infrared sensor 45 is less than the set value, the control board 44 controls the axial flow fan 43 to be closed, so that the use by a user is facilitated, and automatic control is realized.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A range hood, comprising:

the smoke ventilator comprises a smoke ventilator main body, wherein a smoke ventilator channel is arranged in the smoke ventilator main body;

the fume collecting hood is arranged below the fume extractor main body and is communicated with the fume channel;

the smoke guide plate is arranged at the bottom of the smoke collecting hood;

the smoke guide plate includes:

the base is connected with the fume collecting hood;

the turning plate is connected with the base;

the cover plate is connected with the base to form a cavity;

the air curtain generation system is positioned in the cavity and is used for exhausting air to one side of the turning plate, which is close to the center of the fume collecting hood, so as to form an air curtain; the turning plate is turned relative to the base, so that the angle between the base and the turning plate can be adjusted; the air curtain generating system adjusts the air curtain direction along with the turning angle of the turning plate.

2. The range hood of claim 1, wherein the range hood further comprises a hood body,

the smoke guide plate includes:

the base is connected with the turning plate through the rotating shaft;

the base includes:

the first bottom plate is connected with the bottom of the fume collecting hood;

the second bottom plate is connected with the first bottom plate and forms an included angle with the first bottom plate; the second bottom plate is connected with the turning plate;

the first side plate is connected with the first side edge of the first bottom plate and the first side edge of the second bottom plate;

the second side plate is connected with the second side edge of the first bottom plate and the second side edge of the second bottom plate;

wherein the angle between the flap and the second base plate is less than 180 °.

3. The range hood according to claim 1, wherein the base is provided with an air inlet and an air outlet;

the air curtain generating system sucks in external air through the air inlet and discharges the external air through the air outlet; wherein, the air that the air outlet was discharged is located the board turns over and is close to the internal surface one side of collection petticoat pipe.

4. A range hood according to claim 3, wherein an air duct is provided in the base, the air duct being in communication with the air outlet;

the air curtain generating system comprises:

the air inlet hole of the axial flow fan is correspondingly arranged with the air inlet, and the air outlet hole of the axial flow fan is communicated with the air channel; the axial flow fan sucks air through the air inlet, presses the air into the air channel and discharges the air from the air outlet;

the control board is electrically connected with the axial flow fan and controls the axial flow fan to be opened or closed.

5. The range hood of claim 4, wherein the air curtain generating system further comprises:

the infrared sensor is used for collecting temperature data and transmitting the temperature data to the control panel; and the control board is used for controlling the opening of the axial flow fan when the temperature data is greater than or equal to a set value.

6. The range hood of claim 5, wherein the air curtain generating system further comprises:

a switch board;

the switch board includes:

the power supply key is used for controlling the air curtain generation system to be turned on or turned off;

the air curtain opening key is used for controlling the air curtain generating system to continuously operate;

the automatic air curtain button is used for controlling the air curtain generation system to automatically control whether the axial flow fan works according to comparison of the temperature data and the set value by the control panel.

7. The range hood of claim 5, wherein the cover plate is provided with an opening, and the infrared sensor is disposed opposite the opening.

8. The range hood of claim 1 wherein the flap includes oppositely disposed inner and outer surfaces, the inner surface being adjacent the oil smoke passageway relative to the outer surface;

the smoke guide plate further comprises:

the sponge is arranged on one side of the inner surface of the turning plate.

9. The range hood of claim 1, wherein the smoke guide plate further comprises:

the base is connected with the bottom of the fume collecting hood through the connecting structure;

and the sealing cotton is arranged between the base and the fume collecting hood.

10. A range hood, comprising:

the smoke ventilator comprises a smoke ventilator main body, wherein a smoke ventilator channel is arranged in the smoke ventilator main body;

the fume collecting hood is arranged below the fume extractor main body and is communicated with the fume channel;

the smoke guide plate is arranged at the bottom of the smoke collecting hood;

the smoke guide plate includes:

the base is connected with the bottom of the fume collecting hood;

the turning plate is connected with the base;

the air curtain generation system is used for exhausting air to one side of the turning plate, which is close to the center of the fume collecting hood, so as to form an air curtain;

the turning plate is turned over relative to the base, the smoke guide plate is used for enlarging a smoke collecting area, the smoke collecting area is adjusted according to the escape direction of the oil smoke, and the air curtain direction is adjusted to block the escape of the oil smoke.