CN111442309A - Novel smoke exhaust ventilator - Google Patents

Abstract

The novel range hood comprises a host machine, an upper machine body, a lower machine body, a main smoke baffle plate and a side smoke baffle plate, wherein the host machine comprises a host machine shell, a fan and an electric control box, the fan is arranged in the host machine shell, the electric control box is electrically connected with the fan, the upper machine body is arranged below the host machine, the bottom of the upper machine body is provided with an upper air inlet, the lower machine body is arranged below the upper machine body, the upper machine body and the lower machine body are of an inverted L-shaped structure, the interior of the lower machine body is communicated with the interior of the upper machine body, the lower machine body is provided with a lower air inlet, one side of the lower air inlet, which is far away from the lower machine body, is provided with the main smoke baffle plate and the side smoke baffle plate, the first side of the main smoke baffle plate is arranged on the upper side of the lower air inlet through a rotating shaft, the second side and the third side of the main smoke baffle plate are respectively provided with the side smoke baffle plates, the plate is.

Description

Novel smoke exhaust ventilator

Technical Field

The utility model relates to a kitchen appliance technical field especially relates to novel smoke ventilator.

Background

In the near-suction type range hood, a fan is generally arranged at the upper part, and a smoke absorbing structure is arranged at the lower part.

Most of the existing near-suction type smoke exhaust ventilators only have one air inlet, when cooking produces a small amount of oil smoke, the near-suction type smoke exhaust ventilator can completely suck and discharge the oil smoke, but when the near-suction type smoke exhaust ventilator produces a large amount of oil smoke, the near-suction type smoke exhaust ventilator cannot completely suck and discharge the oil smoke in time, and a large amount of oil smoke escapes outwards.

Disclosure of Invention

In order to overcome the problem that exists among the correlation technique, this disclosed embodiment provides novel smoke ventilator. The technical scheme is as follows:

according to a first aspect of the disclosed embodiment, a novel range hood is provided, comprising:

the host comprises a host shell, a fan arranged in the host shell and an electric control box electrically connected with the fan;

the upper machine body is arranged below the main machine, and an upper air inlet is formed in the bottom of the machine body of the upper machine body;

the lower machine body is provided with a lower air inlet, and a main smoke baffle and a side smoke baffle are arranged on one side of the lower air inlet, which deviates from the lower machine body;

the first side surface of the main smoke baffle is arranged on the upper side of the lower air inlet through a rotating shaft;

the second side surface and the third side surface of the main smoke baffle plate are respectively provided with the side smoke baffle plate, the plate surface of the side smoke baffle plate is of a foldable structure, and the second side surface and the third side surface are two opposite side surfaces in the main smoke baffle plate; the main smoke baffle plate can rotate around the rotating shaft to drive the plate surface of the side smoke baffle plate to be folded and unfolded.

The novel range hood comprises a main machine, an upper machine body, a lower machine body and a main smoke baffle plate, wherein the main machine comprises a main machine shell, a fan and an electric control box, the fan is arranged in the main machine shell, the electric control box is electrically connected with the fan, the upper machine body is arranged below the main machine body, an upper air inlet is formed in the bottom of the upper machine body, the lower machine body is arranged below the upper machine body, an inverted L-shaped structure is formed between the upper machine body and the lower machine body, the interior of the lower machine body is communicated with the interior of the upper machine body, a lower air inlet is formed in the lower machine body, a main smoke baffle plate and a side smoke baffle plate are arranged on one side, which is far away from the lower machine body, of the lower air inlet, the first side of the main smoke baffle plate is arranged on the upper side of the lower air inlet through a rotating shaft, the second side and the third side of the main smoke baffle plate are respectively provided with the side smoke baffle plate, the plate is of a foldable structure, the second side and the third side of the main smoke baffle plate are two opposite sides of the main smoke baffle plate, the main smoke baffle plate can rotate around the rotating shaft to drive the folding of the side smoke baffle plate and the main smoke baffle plate to be unfolded, so that the smoke baffle plate and the smoke is sucked into a closed smoke sucking structure, and the two sides of the main smoke baffle plate are further, and the smoke baffle plate is arranged in the main smoke baffle plate, and the main smoke baffle plate, so that the smoke baffle plate, and the smoke baffle plate is not sucked.

In one embodiment, the coverage area of the main smoke baffle is smaller than or equal to the area of the lower air inlet.

In one embodiment, further comprising: a push rod motor and a connecting rod,

the push rod motor is positioned in the host shell, the movement direction of a push rod in the push rod motor is the gravity direction, and the movable end of the push rod in the push rod motor is connected with one end of the connecting rod;

the other end of the connecting rod is connected with the main smoke baffle;

the electric control box is electrically connected with the push rod motor and used for controlling the working state of the push rod motor.

In one embodiment, further comprising: a rotating support structure;

one side of the rotary supporting structure is connected with the main smoke baffle plate, and the other side of the rotary supporting structure is connected with the other end of the connecting rod.

In one embodiment, further comprising: a first support bar and a second support bar;

one end of the first supporting rod is connected with the lower machine body or the upper machine body, the other end of the first supporting rod is hinged to one end of the second supporting rod, and the side wall of the second supporting rod is connected with the main smoke baffle and used for supporting the main smoke baffle to be located at the current rotating position when the main smoke baffle rotates.

In one embodiment, the side smoke barrier comprises: a smoke blocking sector and a plurality of shafts;

the smoke blocking fan surface is in a fan shape after being unfolded;

the plurality of shafts are arranged along the radial direction of the smoke blocking fan surface.

In one embodiment, the plurality of axes are evenly distributed in the smoke blocking sector.

In one embodiment, a first fixing structure and a second fixing structure are respectively arranged at two ends of the smoke blocking fan surface;

the first fixing structure is connected with the main smoke baffle plate;

the second fixing structure is connected with the lower machine body.

In one embodiment, the plate between the two shafts is folded towards a side close to the lower air inlet.

In one embodiment, further comprising: a rotating electric machine;

the rotary motor is connected with the main smoke baffle and is used for controlling the main smoke baffle to rotate;

the electric control box is electrically connected with the rotating motor and used for controlling the working state of the rotating motor.

In one embodiment, the rotation angle of the main smoke barrier is less than or equal to 45 degrees.

In one embodiment, the upper intake port includes: the first main air inlet, the second sub air inlet and the third sub air inlet;

the first main air inlet is positioned in the middle of the upper machine body;

the second sub air inlet is positioned at one end, close to the lower machine body, of the upper machine body;

the third sub air inlet is positioned at one end of the upper machine body, which is opposite to the second sub air inlet.

In one embodiment, further comprising: an oil cup;

the oil cup is positioned at one end of the lower machine body, which is far away from the upper machine body.

In one embodiment, the lower air inlet covers a user-facing side of the lower body.

In one embodiment, a louver structure is provided in the upper inlet.

In one embodiment, the louver structure includes: a blade and a rotating structure;

the rotating structure is connected with the blades and is used for controlling the blades to rotate;

the electric control box is electrically connected with the rotating structure and used for controlling the rotating structure to rotate.

In one embodiment, the rotating structure includes: a gear;

the end part of each blade is fixed with the gear, and the gears corresponding to two adjacent blades are meshed with each other;

the electric control box is electrically connected with the gear and used for controlling the gear to rotate.

In one embodiment, the gear face of the gear is perpendicular to the face of the blade.

In one embodiment, the lower intake vent includes: the main smoke baffle plate and the side smoke baffle plate are arranged on one sides of the first lower air inlet and the second lower air inlet, which are far away from the lower machine body; the first air inlet and the second air inlet are respectively positioned on the left side and the right side of the lower machine body.

In one embodiment of the present invention,

the first side surface of the first main smoke baffle plate is arranged on the upper side of the first lower air inlet through a first rotating shaft;

the second side surface and the third side surface of the first main smoke baffle plate are respectively provided with the first side smoke baffle plate, the plate surface of the first side smoke baffle plate is of a foldable structure, and the second side surface and the third side surface are two opposite side surfaces in the first main smoke baffle plate; the first main smoke baffle plate can rotate around the first rotating shaft so as to drive the plate surface of the first side smoke baffle plate to fold and unfold;

the plate between the two first shafts is folded towards one side close to the first lower air inlet.

In one embodiment, the coverage area of the first main smoke baffle is smaller than or equal to the area of the first lower air inlet.

In one embodiment, further comprising: the first push rod motor, the first connecting rod and the first rotary supporting structure;

the first push rod motor is positioned in the host shell, the movement direction of a push rod in the first push rod motor is the gravity direction, and the movable end of the push rod in the first push rod motor is connected with one end of the first connecting rod;

one side of the first rotary supporting structure is connected with the first main smoke baffle plate;

the other side of the first rotary supporting structure is connected with the other end of the first connecting rod;

the electric control box is electrically connected with the first push rod motor and used for controlling the working state of the first push rod motor.

In one embodiment, further comprising: a third support bar and a fourth support bar;

one end of the third supporting rod is connected with the lower machine body or the upper machine body, the other end of the third supporting rod is hinged to one end of the fourth supporting rod, and the side wall of the second supporting rod is connected with the first main smoke baffle plate and used for supporting the first main smoke baffle plate to be located at the current rotating position when the first main smoke baffle plate rotates.

In one embodiment, the first side smoke barrier comprises: a first smoke-blocking fan surface and a plurality of first shafts;

the first smoke blocking fan surface is in a fan shape after being unfolded;

the first shafts are arranged along the radial direction of the first smoke blocking fan surface;

the first shafts are uniformly distributed in the first smoke blocking fan surface.

In one embodiment, a third fixing structure and a fourth fixing structure are respectively arranged at two ends of the first smoke blocking fan surface;

the third fixing structure is connected with the first main smoke baffle plate;

the fourth fixing structure is connected with the lower machine body.

In one embodiment of the present invention,

the first side surface of the second main smoke baffle plate is arranged on the upper side of the second lower air inlet through a second rotating shaft,

the second side face and the third side face of the second main smoke baffle plate are respectively provided with the second side smoke baffle plate, the plate surface of the second side smoke baffle plate is of a foldable structure, and the second side face and the third side face are two opposite side faces in the second main smoke baffle plate; the second main smoke baffle plate can rotate around the second rotating shaft to drive the plate surface of the second side smoke baffle plate to fold and unfold.

In one embodiment, further comprising: a temperature detector;

the temperature detector is arranged below the lower air inlet and electrically connected with the electric control box and used for transmitting detection data to the electric control box.

In one embodiment, further comprising:

the peculiar smell detector is arranged inside the upper machine body;

the peculiar smell detector is electrically connected with the electric control box and used for transmitting detection data to the electric control box.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic structural view of a novel range hood according to an exemplary embodiment.

Fig. 2 is a bottom view of the upper body shown in accordance with an exemplary embodiment.

Fig. 3 is a bottom view of the upper body shown in accordance with an exemplary embodiment.

Fig. 4 is a bottom view of the upper body shown in accordance with an exemplary embodiment.

Fig. 5 is a bottom view of the upper body shown in accordance with an exemplary embodiment.

FIG. 6 is an elevation view of the lower fuselage shown in accordance with an exemplary embodiment.

FIG. 7 is an elevation view of the lower fuselage shown in accordance with an exemplary embodiment.

FIG. 8 is an elevation view of the lower fuselage shown in accordance with an exemplary embodiment.

Fig. 9 is a schematic structural diagram of a novel range hood according to an exemplary embodiment.

Fig. 10 is a schematic structural view of a novel range hood according to an exemplary embodiment.

Fig. 11 is a schematic structural view illustrating a first support rod and a second support rod in the novel range hood according to an exemplary embodiment.

Fig. 12 is a schematic view illustrating a connection relationship between the first support bar and the second support bar and the main smoke barrier in the novel range hood according to an exemplary embodiment.

Fig. 13 is a schematic structural view of a novel range hood according to an exemplary embodiment.

Fig. 14 is a structural illustration of a side baffle in a novel range hood according to an exemplary embodiment.

Fig. 15 is a schematic structural view of the novel range hood side smoke barrier shown folded according to an exemplary embodiment.

Figure 16 is a side view of a novel range hood according to an exemplary embodiment.

Fig. 17 is a bottom view of the lower body shown in accordance with an exemplary embodiment.

Fig. 18 is a schematic structural view of a novel range hood according to an exemplary embodiment when a main smoke barrier is closed.

Fig. 19 is a schematic structural view of the main smoke barrier of the novel range hood according to an exemplary embodiment when the main smoke barrier is closed.

Fig. 20 is a schematic structural view illustrating a main smoke barrier of the novel range hood not fully opened according to an exemplary embodiment.

Fig. 21 is a schematic structural view illustrating a main smoke barrier of the novel range hood not fully opened according to an exemplary embodiment.

Figure 22 is a schematic structural view of the new range hood showing the main smoke barrier fully open according to one exemplary embodiment.

Figure 23 is a schematic structural view of the novel range hood showing the main smoke barrier fully open according to one exemplary embodiment.

Fig. 24 is a schematic structural view of a novel range hood according to an exemplary embodiment.

Fig. 25 is a schematic structural view of a novel range hood according to an exemplary embodiment.

Fig. 26 is a bottom view of the upper body shown in accordance with an exemplary embodiment.

FIG. 27 is a side view of a blind structure shown according to an exemplary embodiment.

FIG. 28 is a structural schematic view of a single slat of the blind structure according to an exemplary embodiment.

Fig. 29 is a bottom view of the upper body shown in accordance with an exemplary embodiment.

FIG. 30 is a side view of a structure showing a single vane in a blind structure according to an exemplary embodiment.

Fig. 31 is a bottom view of the upper body shown in accordance with an exemplary embodiment.

Fig. 32 is a schematic structural view of a novel range hood according to an exemplary embodiment.

Fig. 33 is a schematic structural view of a novel range hood according to an exemplary embodiment.

Figure 34 is a front view of a new range hood according to an exemplary embodiment.

Fig. 35 is a bottom view of the novel range hood shown according to an exemplary embodiment.

Fig. 36 is a schematic structural view illustrating the first main smoke barrier and the second main smoke barrier of the novel range hood according to an exemplary embodiment when both are closed.

Fig. 37 is a schematic structural view showing the first main smoke barrier closed and the second main smoke barrier opened in the new range hood according to an exemplary embodiment.

FIG. 38 is a schematic view of the novel range hood showing the configuration with the first main smoke barrier open and the second main smoke barrier closed, according to one exemplary embodiment;

fig. 39 is a schematic structural view of a novel range hood according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Fig. 1 is a schematic structural diagram of a novel range hood according to an exemplary embodiment, as shown in fig. 1, including:

the host 1 comprises a host shell 11, a fan 12 arranged in the host shell 11 and an electric control box 13 electrically connected with the fan 12;

the upper machine body 2 is arranged below the main machine 1, and an upper air inlet 21 is arranged at the bottom of the machine body of the upper machine body 2;

the position of the upper air inlet 21 arranged in the upper machine body 2 can be located at any position of the bottom of the machine body of the upper machine body 2, and the disclosure does not limit the position, and of course, the number of the upper air inlets 21 arranged in the upper machine body 2 is not limited by the disclosure, and can be 1, 2 or 3. Fig. 2 is a schematic bottom view of the upper body according to an exemplary embodiment, and as shown in fig. 2, 1 upper intake opening 21 may be provided at a central position of the bottom of the upper body 2; fig. 3 is a schematic bottom view of the upper body according to an exemplary embodiment, and as shown in fig. 3, 2 upper intake ports 21 may be provided at the bottom of the upper body 2.

Fig. 4 is a schematic bottom view of the upper body according to an exemplary embodiment, and as shown in fig. 4, 3 upper air inlets 21 located at the bottom of the upper body 2 may be provided, respectively: a first main air inlet 211, a second sub air inlet 212 and a third sub air inlet 213;

the first main air inlet is positioned in the middle of the upper machine body 2;

the second sub air inlet is positioned at one end of the upper machine body 2 close to the lower machine body 3;

the third sub-air inlet is located at the end of the upper machine body 2 opposite to the second sub-air inlet.

Further, the shape of the upper air inlet 21 provided in the upper body 2 may be adjusted according to actual requirements, and the shape of the upper air inlet 21 is not limited in this disclosure, for example: may be shaped as shown in fig. 2-4, or may be shaped as shown in fig. 5.

The lower machine body 3 is arranged below the upper machine body 2, the upper machine body 2 and the lower machine body 3 are of an inverted L-shaped structure, the interior of the lower machine body 3 is communicated with the interior of the upper machine body 2, the lower machine body 3 is provided with a lower air inlet 31, a main smoke baffle 32 and a side smoke baffle 33 are arranged on one side of the lower air inlet 31, which is far away from the lower machine body 3, and the lower air inlet 31 is positioned on one side, which faces a user, of the lower machine body 3.

When the range hood works, the electric control box 13 controls the fan 12 to operate, so that oil smoke is sucked through the lower air inlet 31 and/or the upper air inlet 21, and the purpose of smoke exhaust is achieved.

The position of the lower air inlet 31 disposed in the lower machine body 3 may be located at any position of one surface of the lower machine body 3 facing the user, which is not limited in this disclosure, and of course, the number of the lower air inlets 31 disposed in the lower machine body 3 is not limited in this disclosure, and may be 1, 2 or 3. Fig. 6 is a front view of the lower body 3 (the main smoke barrier 32 and the side smoke barrier 33 are not shown in fig. 6) according to an exemplary embodiment, as shown in fig. 6, the lower intake vent 31 is located at a middle position of the lower body 3; fig. 7 is a front view of the lower body 3 according to an exemplary embodiment (the main smoke barrier 32 and the side smoke barrier 33 are not shown in fig. 7), and as shown in fig. 7, the lower intake vent 31 is located at an upper position of the lower body 3, that is, at a position near the upper body 2 in the lower body 3.

For example, as the lower air inlet 31 of the range hood is closer to the cooking utensil, the oil smoke is easier to be sucked and exhausted, and therefore, the lower air inlet 31 of the range hood is located at the lower position of the lower machine body 3 as much as possible, so that the lower air inlet 31 is close to the cooking utensil, and preferably, the lower air inlet 31 is located on the side, facing the user, of the whole lower machine body 3.

It should be noted that, in the present disclosure, for the sake of better clarity of explanation of the technical solution, the coverage area of the lower air inlet 31 is the whole lower machine body 3, but the present disclosure is not limited thereto in practical applications.

Further, the shape of the lower air inlet 31 disposed in the lower body 3 may be adjusted according to actual requirements, and the present disclosure does not limit the shape of the lower air inlet 31, for example: may be shaped as shown in fig. 6 or 7, and may be similar to the shape of the upper inlet 21 shown in fig. 5.

The shapes of the upper body 2 and the lower body 3 may also be referred to as "7" shapes.

The first side surface of the main smoke baffle 32 is arranged at the upper side of the lower air inlet 31 through a rotating shaft;

the second side and the third side of the main smoke baffle 32 are respectively provided with a side smoke baffle 33, the surface of the side smoke baffle 33 is of a foldable structure, and the second side and the third side are two opposite sides of the main smoke baffle 32; the main smoke barrier 32 can rotate around the rotation axis to fold and unfold the side smoke barriers 33.

The main cigarette board 32 and two side cigarette boards 33 have constituted and have held together the cigarette structure, when the main cigarette board 32 rotation was opened in order to drive with two side cigarette boards 33's face expandes, this structure can be gathered together the inside oil smoke of fuselage 3 down of going into from air intake 31 in the main cigarette board 32 and two side cigarette boards 33 that keep off that enclose structure, the oil smoke can outwards not lose to smoke exhaust ventilator's suction effect has been promoted.

In the related art, only one main smoke barrier 32 is provided, so that the oil smoke generated during cooking is blocked by the main smoke barrier 32 during the rising process, and is sucked into the lower body 3 through the lower air inlet 31 below the main smoke barrier 32, but during the sucking process, because both sides of the main smoke barrier 32 are open structures, the oil smoke can escape outwards from the open structures at both sides, and the smoke discharging effect is poor, in the present disclosure, the side smoke barriers 33 are respectively provided at both sides of the main smoke barrier 32, so that both sides of the main smoke barrier 32 are changed into closed structures, and the oil smoke generated during cooking is blocked by the main smoke barrier 32 during the rising process, so that the lower body 3 is sucked into the lower body 3 through the lower air inlet 31 below the main smoke barrier 32, and during the sucking process, because both sides of the main smoke barrier 32 are closed structures, the oil smoke cannot escape outwards from the closed structures at both sides, the smoke exhaust effect is improved, and the user experience is further improved.

The technical scheme provided by the embodiment of the disclosure can include that the novel range hood comprises a main machine 1, an upper machine body 2, a lower machine body 3, a main smoke baffle 32 and a side smoke baffle 33, wherein the main smoke baffle 32 comprises a main machine shell 11, a fan 12 arranged in the main machine shell 11 and an electric control box 13 electrically connected with the fan 12, the upper machine body 2 is arranged below the main machine 1, the bottom of the upper machine body 2 is provided with an upper air inlet 21, the lower machine body 3 is arranged below the upper machine body 2, the upper machine body 2 and the lower machine body 3 are of an inverted L-shaped structure, the interior of the lower machine body 3 is communicated with the interior of the upper machine body 2, the lower machine body 3 is provided with the lower air inlet 31, one side of the lower air inlet 31, which is far away from the lower machine body 3 is provided with the main smoke baffle 32 and the side smoke baffle 33, the first side of the main smoke baffle 32 is arranged on the upper side of the lower air inlet 31 through a rotating shaft, the second side and the third side of the main smoke baffle 32 are respectively provided with the side smoke baffles 33, the surface of the side smoke baffle 33, the main smoke baffle 32 can be of a foldable structure, the second side surface and the third side surface of the main smoke baffle 32 are two opposite sides of the main smoke baffle 32, the main smoke baffle 32 can rotate around the rotating shaft, so that the main smoke baffle 32 and the main smoke baffle 32 can be further driven by the main smoke baffle 32, and the main smoke baffle 32, the main smoke baffle 32 can be lifted smoke baffle 32, and the.

The present disclosure also provides another range hood, in which the lower air inlet 31 does not need to be provided with the main smoke baffle 32 and the side smoke baffle 33, at this time, the schematic diagram of the upper air inlet 21 in the upper body 2 is shown in fig. 5, the schematic diagram of the lower air inlet 31 in the lower body 3 is shown in fig. 6, the lower air inlet 31 is used as the main air inlet, and the air inlet area is the largest; the upper air inlet 21 in the middle of the upper machine body 2 is used as an auxiliary air inlet for assisting in absorbing oil smoke, and the air inlet area is smaller than that of the lower air inlet 31; the upper air inlets 21 arranged at the two sides in the upper machine body 2 have the smallest area and mainly function in forming an air curtain to assist in sucking and exhausting oil smoke; when a user cooks, especially fries quickly, a large amount of oil smoke can be generated, and a mode of sucking and exhausting oil smoke step by step can be adopted: firstly, when a large amount of oil smoke rises, most of the oil smoke is sucked and discharged through the lower air inlet 31, a part of the oil smoke continues to rise due to the fact that no baffle plate is arranged on the upper edge of the lower air inlet 31, and at the moment, the upper air inlet 21 in the middle of the upper machine body 2 sucks and discharges the part of the oil smoke; when the generated oil smoke is too large, part of the oil smoke cannot be sucked and exhausted by the upper air inlet 21 in the middle of the upper machine body 2 due to reasons such as interference, and at this time, the part of the oil smoke can be completely sucked and exhausted due to the fact that the upper air inlets 21 arranged at the two sides of the upper machine body 2 form an air curtain; that is, during ordinary cooking, less oil smoke is generated at this time, and the oil smoke is sucked and exhausted mainly by the lower air inlet 31, so that the oil smoke can be exhausted completely. The oil smoke is sucked and exhausted by the three-step method, so that the air suction efficiency of the range hood can be improved, and the oil smoke is prevented from leaking to a kitchen space. The range hood can also have the function of removing kitchen odor, and when the range hood is used for removing the kitchen odor, the range hood is mainly used for sucking and exhausting through the lower air inlet 31 and the upper air inlet 21 in the middle of the machine body. In order to achieve a reliable suction and exhaust effect, the vertical distance between the upper edge of the lower air inlet 31 and the bottom of the upper machine body 2 may be 20-30 cm. In this embodiment, the areas and structures of the respective lower air inlets 31 and the respective upper air inlets 21 may be modified and adjusted according to actual needs and manufacturing equipment.

Fig. 8 is a front view of the lower body according to an exemplary embodiment, and as shown in fig. 8, in order to improve the suction and exhaust effects of the hood, the coverage area of the main smoke barrier 32 is smaller than or equal to the area of the lower intake vent 31.

The area of air intake 31 is less than or equal to through the area of setting up the main area of keeping off cigarette board 32 to when having the small amount oil smoke, need not to open main area of keeping off cigarette board 32, main area of keeping off cigarette board 32 closure this moment, the oil smoke can be through the lower air intake 31 that exposes inside 3 fuselages down, thereby when having the small amount oil smoke, need not to open main area of keeping off cigarette board 32 also can effectual suction row.

In one implementation, the length of the second side or the third side of the main smoke barrier 32 may be set to be less than or equal to the length of the corresponding edge of the lower air inlet 31.

To illustrate the present disclosure more clearly, the length of the second or third side of the main smoke barrier 32 is referred to as the width of the main smoke barrier 32, and the length of the other two sides is referred to as the length of the main smoke barrier 32.

The width through setting up main cigarette board 32 is less than the width of air intake 31 down to when main cigarette board 32 was closed, lower air intake 31 was not sheltered from completely, and at this moment, the oil smoke just can be followed the lower air intake 31 that exposes and inhaled fuselage 3 inside down, thereby when having the small amount oil smoke, need not to open main cigarette board 32 and also can effectual suction row.

In one implementation, to improve the blocking effect of the main smoke barrier 32 on the oil smoke, the rotation angle of the main smoke barrier 32 is less than or equal to 45 degrees. That is, the angle between the width direction of the main smoke barrier 32 and the gravity direction is less than or equal to 45 degrees.

In one embodiment, as shown in fig. 9, the range hood further includes: an oil cup 34;

an oil cup 34 is located in the lower body 3 at the end facing away from the upper body 2.

Range hood often can deposit the oil stain, consequently, can set up oil cup 34 bottom range hood, after the deposit oil stain of range hood, the oil stain can fall into in oil cup 34 under the effect of gravity to avoided the oil stain to drop on top of a kitchen range or gas-cooker, effectively promoted user experience.

In one embodiment, as shown in fig. 10, further includes: a push rod motor 4 and a connecting rod 5,

the push rod motor 4 is positioned in the host shell 11, the moving direction of a push rod in the push rod motor 4 is the gravity direction, and the movable end of the push rod in the push rod motor 4 is connected with one end of the connecting rod 5;

the other end of the connecting rod 5 is connected with the main smoke baffle 32;

the electric control box 13 is electrically connected with the push rod motor 4 and is used for controlling the working state of the push rod motor 4.

Set up the push rod in the push rod motor 4, push rod motor 4 can control the push rod to carry out flexible linear motion at the during operation, in this disclosure, drives the rotation that the owner kept off cigarette board 32 through setting up push rod motor 4 and connecting rod 5, and the expansion end of push rod is connected with the one end of connecting rod 5 in the push rod motor 4, and the other end of connecting rod 5 is connected on the owner keeps off cigarette board 32. When the range hood works, the push rod motor 4 works to control the push rod to extend downwards and move linearly, at the moment, the push rod can drive the connecting rod 5 to move forwards (namely, move towards a user), the connecting rod 5 can drive the main smoke baffle 32 to rotate in a direction back to the lower air inlet 31, so that the main smoke baffle 32 is opened, meanwhile, the main smoke baffle 32 drives the side smoke baffles 33 on the two sides to be opened, when the main smoke baffle 32 rotates to a preset angle, the push rod motor 4 stops working, and oil smoke enters the range hood through the lower air inlet 31 (cover suction) and is discharged out of a room through the fan 12; when the cigarette stopping device stops working, the push rod motor 4 controls the push rod to shorten and move linearly, the connecting rod 5 is driven to contract, the connecting rod 5 drives the main cigarette blocking plate 32 to start rotating towards the direction close to the lower air inlet 31, and meanwhile, the side cigarette blocking plates 33 on the two sides of the main cigarette blocking plate 32 are folded until the main cigarette blocking plate 32 returns to the initial state.

When the area of the main smoke barrier 32 is large, the main smoke barrier 32 and the side smoke barrier 33 can be reliably rotated by arranging the push rod motor 4 and the connecting rod 5.

In one embodiment, as shown in fig. 10, in order to further enhance the reliable rotation of the main smoke barrier 32 and the side smoke barrier 33, the range hood further comprises: a rotating support structure 6;

one side of the rotary support structure 6 is connected with the main smoke barrier 32, and the other side of the rotary support structure 6 is connected with the other end of the connecting rod 5.

Through setting up rotatory bearing structure 6, can be more nimble reliable realization main cigarette board 32 and the opening and shutting and the support of side cigarette board 33.

Because the rotary supporting structure 6 is connected with the push rod in the push rod motor 4 through the connecting rod 5, when the rotary supporting structure is in operation, the push rod motor 4 works to control the push rod to extend downwards and move linearly, at the moment, the push rod can drive the connecting rod 5 to move forwards (namely, move towards a user), the connecting rod 5 can drive the rotary supporting structure 6 to move towards the user, and the rotary supporting structure 6 can drive the main smoke baffle 32 to rotate in a direction away from the lower air inlet 31, so that the main smoke baffle 32 is opened, meanwhile, the main smoke baffle 32 drives the side smoke baffles 33 at two sides to be opened, when the main smoke baffle 32 rotates to a preset angle, the push rod motor 4 stops working, oil smoke enters the range hood through the lower air inlet 31 (cover suction), and is discharged outdoors through the fan 12; when the cigarette stopping device stops working, the push rod motor 4 controls the push rod to shorten and move linearly, the connecting rod 5 is driven to contract, the connecting rod 5 drives the rotary supporting structure 6 to move back from the direction of a user, so that the main cigarette blocking plate 32 is driven to rotate towards the direction close to the lower air inlet 31, and meanwhile, the side cigarette blocking plates 33 on the two sides of the main cigarette blocking plate 32 are folded until the main cigarette blocking plate 32 returns to the initial state.

Because the rotary supporting structure 6 not only can drive the main smoke baffle 32 to rotate, but also can support the main smoke baffle 32 in the rotating process of the main smoke baffle 32 and rotate to a preset position, the rotary supporting structure 6 can improve the reliability of the rotation of the main smoke baffle 32.

In one embodiment, as shown in fig. 10-12, further comprising: a first support bar 71 and a second support bar 72;

one end of the first supporting rod 71 is connected to the lower body 3 or the upper body 2, the other end of the first supporting rod 71 is hinged (for example, hinged by a bolt) to one end of the second supporting rod 72, and a side wall of the second supporting rod 72 is connected to the main smoke barrier 32 (as shown in fig. 12) for supporting the main smoke barrier 32 in a current rotation position when the main smoke barrier 32 rotates.

The side wall of the second support bar 72 supports the main smoke baffle 32, and the area of the side wall of the second support bar 72 is larger, so that the support is more reliable.

In one embodiment, as shown in fig. 13-14, the side smoke barrier 33 comprises: a smoke blocking sector 331 and a plurality of shafts 332;

the smoke blocking fan surface 331 is fan-shaped after being unfolded;

the plurality of shafts 332 are arranged in the radial direction of the smoke blocking fan surface 331.

The smoke blocking sector 331 of the side smoke blocking plate 33 may be flexible or rigid, and the present disclosure is not limited thereto, and the structure thereof is similar to that of a folding fan used in our daily life, and can be folded (as shown in fig. 15) and unfolded.

This patent adopts the principle of folding fan or hinge, shelters from the main cigarette board 32 both sides air inlet that keeps off, makes to get the air inlet only from a preceding orientation air inlet. When the range hood is opened, the main smoke baffle 32 is opened, and the side smoke baffles 33 are also opened, so that the oil smoke generated during cooking only enters the range hood from one direction at the front side, and is discharged outdoors through the fan 12, and the smoking efficiency is improved.

In one embodiment, as shown in fig. 13-14, the plurality of shafts 332 are evenly distributed in the smoke stop sector 331.

In one embodiment, as shown in fig. 13-14, the two ends of the smoke blocking fan surface 331 are respectively provided with a first fixing structure 333 and a second fixing structure 334;

the first attachment structure 333 is connected to the primary smoke barrier 32;

the second fixing structure 334 is connected to the lower body 3.

In order to reliably fix the side smoke baffle 33 and the range hood, a first fixing structure 333 and a second fixing structure 334 are respectively arranged at two ends of the smoke baffle sector 331, and the first fixing structure 333 is connected with the main smoke baffle 32; the second fixing structure 334 is connected to the lower body 3.

In one embodiment, in order to avoid the side smoke barrier 33 from affecting the overall aesthetic effect of the range hood after being folded, as shown in fig. 16 and 17, the panel between the two shafts 332 is folded toward the side close to the lower air inlet 31, so that when the main smoke barrier 32 is closed, the folded side smoke barrier 33 is located below the main smoke barrier 32 and is covered by the main smoke barrier 32, so that the side smoke barrier 33 is not exposed outside, the aesthetic effect of the range hood is effectively improved, and since the side smoke barrier 33 is received below the main smoke barrier 32, the problem that the exposed smoke blocking sector 331 of the side smoke barrier 33 is damaged can also be avoided.

In an implementation manner, the above-mentioned rotation state of the main smoke barrier 32 can also be realized by rotating a rotating motor, and at this time, the rotating motor is connected with the main smoke barrier 32; used for controlling the rotation of the main smoke baffle 32, and the electric control box 13 is electrically connected with the rotating motor and used for controlling the working state of the rotating motor.

The working principle of the rotating motor is similar to that in the related art, and the connection mode of the rotating motor and the main smoke baffle 32 is also similar to that in the related art, and the description is omitted here.

The operation of the range hood of the present disclosure will be described in detail below with several embodiments.

Figures 18-19 are schematic structural views illustrating the closing of the main louvers of the new range hood according to an exemplary embodiment; 20-21 are schematic structural views illustrating the opening (not fully open) of the main damper of the new range hood according to one exemplary embodiment; fig. 13 and 22-23 are schematic structural views illustrating the main smoke barrier of the novel range hood according to an exemplary embodiment when the smoke barrier is fully opened, and it is noted that the structure of the upper body 2 is not shown in fig. 23 for the purpose of more clearly illustrating the structure of the lower body 3.

The range hood products on the market are generally of an upper fan 12 and a lower smoking structure, wherein the range hood products are divided into a top suction type and a near suction type. For the top-suction type range hood, a user can generate a large amount of oil smoke during quick frying, the suction effect of the top-suction type range hood is better than that of a near-suction type range hood, but the oil smoke is easy to contact with a human face, the generated oil smoke is smaller when the user carries out ordinary frying, and the suction effect on a small amount of oil smoke is not ideal as the suction structure of the top-suction type range hood is far away from a gas stove; to nearly inhaling formula smoke ventilator, the oil smoke that the user produced when ordinary stir-fry can be smaller, and the oil smoke machine can be inhaled and discharged cleanly, but when stir-fry, can produce a large amount of oil smoke, will have a lot of oil smoke to escape outward this moment, and smoke exhaust effect is not obvious. To this problem, this disclosure provides a novel smoke ventilator.

Specifically, the first supporting rod 71 is installed at two sides of the main smoke barrier 32 in the main body housing 11, and is used for connecting and supporting the main smoke barrier 32; the push rod motor 4 can be arranged on the upper host shell 11, and when the push rod motor 4 works, the push rod is controlled to do telescopic linear motion; the lower air inlet 31 is provided with a main smoke baffle 32 and side smoke baffles 33 positioned at two sides of the main smoke baffle 32, the side surface of the main smoke baffle 32 is arranged at the upper part of the lower air inlet 31 through a rotating shaft, the main smoke baffle 32 can rotate around the rotating shaft, and the maximum rotating angle is 45 degrees when the main smoke baffle 32 is opened; the main smoke baffle 32 is provided with a second support rod 72 and is connected with the first support rod 71 through the second support rod 72; the main smoke baffle 32 is provided with a rotary supporting structure 6, and the rotary supporting structure 6 is connected with the movable end of a push rod in the push rod motor 4 through a connecting rod 5; the left side and the right side of the main smoke baffle 32 are provided with side smoke baffles 33, one end of each side smoke baffle 33 is arranged on the shell of the lower machine body 3, the other end of each side smoke baffle 33 is arranged on the main smoke baffle 32, and when the main smoke baffle 32 is closed, the side smoke baffles 33 are folded towards the direction close to the main smoke baffle 32; when the main smoke barrier 32 is opened, the lower air inlet 31 is in a cover suction mode; when the main smoke baffle 32 is closed, the lower air inlet 31 is in a suction form; when the range hood is in a shutdown state, the push rod motor 4 controls the push rod to return (initial position), and the side smoke baffle 33 is in a folded state; when the range hood is started, the push rod motor 4 works, the push rod extends and moves linearly to drive the connecting rod 5 to move forwards, the connecting rod 5 drives the main smoke baffle 32 to rotate through the rotating support structure 6, meanwhile, the side smoke baffle 33 is opened, and the range hood stops when the main smoke baffle 32 rotates by 45 degrees; when the range hood is closed, the push rod motor 4 moves, the push rod is shortened and moves linearly, the connecting rod 5 is driven to contract, the main smoke baffle 32 starts to rotate, and meanwhile, the side smoke baffle 33 is folded until the main smoke baffle 32 returns to the initial state.

The smoke ventilator in this disclosure can set up two kinds of mode, is respectively: in the normal cooking mode, the main smoke barrier 32 is closed (as shown in fig. 18-19), but the lower air inlet 31 is still partially exposed outside the main smoke barrier 32, so that the oil smoke mainly enters the interior of the range hood from the lower air inlet 31 (corresponding to a near-suction mode), and at this time, part of the oil smoke can enter the interior of the range hood through the upper air inlet 21 and then is discharged out of the room through the fan 12. In a stir-frying mode, the main smoke baffle 32 is opened (as shown in fig. 13 and 22-23), oil smoke mainly enters the interior of the range hood through the lower air inlet 31 (equivalent to a cover suction mode), at the moment, part of the oil smoke can also enter the interior of the range hood through the upper air inlet 21 and is discharged out of the room through the fan 12, specifically, the push rod motor 4 works, the push rod extends and moves linearly to drive the connecting rod 5 to move forwards, the connecting rod 5 drives the rotary supporting structure 6 to rotate to drive the main smoke baffle 32 to rotate, meanwhile, the side smoke baffle 33 is opened, when the main smoke baffle 32 rotates 45 degrees, the oil smoke stops, and the oil smoke enters the range hood through the lower air inlet 31 and is discharged out of the room through the fan 12; after the user closes the range hood, the push rod motor 4 moves, the push rod shortens and moves linearly, the connecting rod 5 is driven to contract, the connecting rod 5 drives the rotary supporting structure 6 to rotate so as to drive the main smoke baffle 32 to start rotating, and meanwhile, the side smoke baffle 33 is folded until the main smoke baffle 32 returns to the initial state.

It should be noted that the main smoke barrier 32 in the present disclosure may be rotated to any angle and fixed at the angle, and the angle of the above-mentioned stir-fry mode may be 45 degrees, for example only, or 30 degrees, etc., and the angle may also be automatically selected according to the preference of the user, which is not limited by the present disclosure.

The lower air inlet 31 of the range hood is close to the frying pan as much as possible by utilizing the near-suction principle, so that the smoking efficiency of the range hood is improved.

On the basis of the corresponding embodiments of fig. 1 to 23, as shown in fig. 24, the above-mentioned novel range hood further includes: and the temperature detector 3a is arranged below the lower air inlet 31, and the temperature detector 3a is electrically connected with the electronic control box 13 and used for transmitting detection data to the electronic control box 13.

Because the cooking operation is performed under the range hood, heat can be generated, so that whether the user starts the cooking operation can be sensed through the temperature detector 3a, and if so, the electric control box 13 controls the range hood to start working.

Specifically, a first temperature preset threshold is preset, and if the electronic control box 13 detects that the temperature data detected by the temperature detector 3a is greater than the first temperature preset threshold, the electronic control box 13 controls the fan 12 to start working.

The kitchen air purification device has two working modes, namely a normal mode and a stir-frying mode, if the electric control box 13 detects that the temperature data detected by the temperature detector 3a is greater than a first preset temperature threshold and less than a second preset temperature threshold, the normal mode is started, at the moment, the main smoke baffle 32 is in a closed state, and the fan 12 starts to work; if the electronic control box 13 detects that the temperature data detected by the temperature detector 3a is greater than the second temperature preset threshold and less than the third temperature preset threshold, the stir-frying mode is started, and at this time, the main smoke baffle 32 is opened, and the fan 12 starts to work.

The first temperature preset threshold is smaller than the second temperature preset threshold, the second temperature preset threshold is smaller than the third temperature preset threshold, specific data can be preset, the specific data can also be adjusted in real time based on big data, and the specific data can also be manually set by a user.

It should be noted that a plurality of temperature detectors 3a may be disposed in the lower intake vent 31, and the number and positions of the temperature detectors 3a are not limited in the present disclosure.

Whether cook the operation based on the detection data that temperature detector 3a obtained is judged, if cook the operation, then open fan 12 automatically and inhale and arrange the work, avoid the user not in time manually open kitchen air purification equipment and the poor problem of kitchen air quality that leads to, effectively promoted user experience.

In one embodiment, as shown in fig. 24, further includes: odor detector 2 a.

The peculiar smell detector 2a is arranged in the upper machine body 2;

the peculiar smell detector 2a is electrically connected with the electric control box 13 and is used for transmitting detection data to the electric control box 13.

This peculiar smell detector 2a is arranged in detecting whether there is the peculiar smell in the kitchen to judge whether the kitchen needs the ventilation, and peculiar smell detector 2a sends the detection data that detect to automatically controlled box 13, and automatically controlled box 13 judges whether the kitchen needs the ventilation based on this detection data, if the judgement result is that the kitchen needs the ventilation, automatically controlled box 13 control fan 12 operation, also can control to open main cigarette board 32, in order to reach the purpose that ventilates fast, inhale the peculiar smell of arranging the kitchen fast.

It should be noted that a plurality of odor detectors 2a may be disposed inside the upper body 2, and the number and positions of the odor detectors 2a are not limited by the present disclosure.

The smoke ventilator in this embodiment can set up three kinds of mode, is respectively: a normal cooking mode in which the main smoke barrier 32 is closed, a stir-fry mode, and a ventilation mode; in the stir mode, the primary smoke barrier 32 is open; in the ventilation mode, the primary smoke barrier 32 is open.

The operation flow of the range hood in the embodiment is as follows:

① the user activates the hood.

② the temperature detector 3a is started, ③ is entered when the temperature detected by the temperature detector 3a is at room temperature within one minute, and ④ is entered when the temperature detected by the temperature detector 3a is greater than a first preset threshold.

③ odor detector 2a is activated to determine if there is an odor in the kitchen, and if so, enters ventilation mode, and if not, enters user mode selection interface ④.

④ the user mode selection interface mainly has two modes of quick-frying and common cooking, if the user selects the quick-frying mode, the fan 12 is started, at this time, the main smoke baffle 32 is opened, at this time, the oil smoke is mainly discharged out of the room through the lower air inlet 31, if the user selects the common cooking mode, the fan 12 is started, the main smoke baffle 32 is in a closed state, at this time, the oil smoke is discharged out of the room through the lower air inlet 31.

⑤ when the temperature detected by the temperature detector 3a is at room temperature within one minute, then ② is entered;

⑥ the user turns off the hood, detects whether the main damper 32 is open, and if so, controls the main damper 32 to close.

Different air inlet modes are designed according to different cooking requirements of users, air suction efficiency of the range hood is greatly improved, and probability of oil smoke leakage outwards is reduced.

The operation flow of the range hood in this embodiment may also be:

① the user activates the hood.

② the temperature detector 3a starts to work, when the temperature detected by the temperature detector 3a is at room temperature within one minute, ③ is entered, and when the temperature detected by the temperature detector 3a is greater than a first preset threshold, the detection data is sent to the electronic control box 13.

③ the odor detector 2a starts to work and sends the detection result to the electronic control box 13.

④ the electric control box 13 detects the section to which the temperature detected by the temperature detector 3a belongs, if the temperature is smaller than the second preset threshold and larger than the first preset threshold, the range hood is controlled to enter the ordinary cooking mode, if the temperature is smaller than the third preset threshold and larger than the second preset threshold, the range hood is controlled to enter the quick-frying mode, and the electric control box 13 determines whether the ventilation mode needs to be started according to the detection data of the peculiar smell detector 2 a.

If the stir-frying mode is selected, the fan 12 is started, the main smoke baffle 32 is opened at this time, and the oil smoke is mainly discharged out of the room through the lower air inlet 31 at this time; if the ordinary cooking mode is selected, the fan 12 is started, the main smoke baffle 32 is in a closed state, and at the moment, the oil smoke is discharged out of the room through the lower air inlet 31; if the ventilation mode is selected, the fan 12 is turned on and the primary smoke barrier 32 is turned on or off at that time.

⑤ when the temperature detected by the temperature detector 3a is at room temperature within one minute, then ③ is entered;

⑥ the user turns off the hood, the electronic control box 13 detects whether the main smoke barrier 32 is open, if so, controls the main smoke barrier 32 to close.

Different air inlet modes are designed according to different cooking requirements of users, air suction efficiency of the range hood is greatly improved, and probability of oil smoke leakage outwards is reduced.

Further, as shown in fig. 25, on the basis of the embodiments corresponding to fig. 1 to 23, a louver structure 22 may be further provided in the upper air inlet 21.

If there are a plurality of upper air inlets 21, a louver structure 22 may be disposed in any combination of the upper air inlets 21, and taking fig. 4 as an example, the louver structure 22 may be disposed in the first main air inlet 211; or the louver structure 22 is arranged in the second sub air inlet 212; or the louver structure 22 is arranged in the third sub-air inlet 213; or the louver structures 22 are arranged in the first main air inlet 211 and the second sub air inlet 212; or the louver structures 22 are arranged in the second main air inlet 212 and the third sub air inlet 213; or the louver structures 22 are disposed in both the first main intake vent 211 and the third sub intake vent 213. The louver structures 22 may be disposed in all the upper intake openings 21, and in fig. 4, the louver structures 22 may be disposed in the first main intake opening 211, the second main intake opening 212, and the third sub-intake opening 213.

When a plurality of blind structures 22 are provided, each blind structure 22 may be controlled independently or simultaneously, and the present disclosure is not limited thereto.

In order to more clearly explain the positional relationship of the upper intake opening 21, fig. 2 to 4 just show the upper intake opening 21 and do not show the louver structure 22.

Through setting up shutter structure 22, when the air inlet direction of adjustment air intake, only need control shutter structure 22's blade 221 rotatory to make the air inlet direction of air intake satisfy user's demand. And because each blade 221 in shutter structure 22 is narrower, in the rotatory in-process of blade 221, can not make the holistic thickness of lampblack absorber increase to can not occupy user's operation platform, because blade 221 is narrower moreover, the user also can not have the potential safety hazard of being gouged by the blade 221 after the rotation when using, thereby has promoted user experience.

Through setting up the shutter structure, when the air inlet direction of adjustment air intake, only need control the blade rotation of shutter structure to make the air inlet direction of air intake satisfy user's demand. And because the narrowness of each blade in the louver structure, at the rotatory in-process of blade, can not make the holistic thickness of lampblack absorber increase to can not occupy user's operation platform, because the blade is narrower moreover, the user can not have the potential safety hazard that is collided with the wound by the blade after the rotation yet when using, thereby has promoted user experience.

Fig. 26 is a bottom view of an upper body shown according to an exemplary embodiment, fig. 27 is a side view of a blind structure shown according to an exemplary embodiment, fig. 28 is a structural schematic view of a single blade in the blind structure shown according to an exemplary embodiment, and as shown in fig. 26-28, the blind structure 22 includes: the blades 221 and the rotating structure 222;

the rotating structure 222 is connected with the blade 221 and is used for controlling the rotation of the blade 221;

the electrical control box 13 is electrically connected to the rotating structure 222 for controlling the rotating structure 222 to rotate.

Each blade 221 can be connected with the rotating structure 222, so that the purpose of controlling the rotation of the blade 221 through the rotating structure 222 is achieved, a transmission mechanism can be arranged between the blades 221, so that only the rotating structure 222 is connected with one of the blades 221, the blade 221 is driven by the rotating structure 222 to rotate, and the power provided by the rotating structure 222 is transmitted to the other blades 221 through the transmission mechanism, so that the other blades 221 can also achieve the purpose of rotating.

Through setting up rotating-structure 222, can control the rotation angle of blade 221, finally make the air inlet angle of going up air inlet 21 satisfy user's different demands, effectively promoted user experience.

In practical applications, the direction of the vane 221 is not limited to the direction shown in fig. 26, but may be other directions, such as: the orientation shown in fig. 29.

The rotating structure 222 may be disposed at only one end of the blade 221, or may be disposed at both ends of the blade 221, which is not limited in this disclosure.

The rotating structure 222 may be disposed at only one end of the blade 221, or may be disposed at both ends of the blade 221, which is not limited in this disclosure.

FIG. 30 is a side view of a structure of a single blade in a blind structure according to an exemplary embodiment, as shown in FIG. 30, a rotation structure 222 includes: gear 2221;

the end of each blade 221 is fixed with a gear 2221, and the gears 2221 corresponding to two adjacent blades 221 are meshed with each other;

the electronic control box 13 is electrically connected to the gear 2221 and is used for controlling the gear 2221 to rotate.

Since the rotation of one of the gears 2221 in the gears 2221 engaged with each other will drive the rotation of the other gears 2221 to achieve the purpose of transmitting things and things, in the present disclosure, the gear 2221 is disposed at the end of each blade 221, and the gears 2221 corresponding to two adjacent blades 221 are engaged with each other; the electric control box 13 is electrically connected to the gears 2221, and is configured to control the gears 2221 to rotate, when the electric control box 13 is connected to one of the gears 2221, the electric control box 13 controls one of the gears 2221 to rotate, and the gear 2221 drives the other gears 2221 to rotate, so as to achieve the purpose of controlling the rotation of the blade 221.

In one embodiment, as shown in fig. 26, the method further includes: a gear controller 223;

the electric control box 13 is electrically connected with the gear 2221 through the gear controller 223; the electronic control box 13 sends instructions to the gear controller 223 to control the operating state of the gear 2221.

During operation, the electronic control box 13 sends a corresponding command to the gear controller 223 to make the gear controller 223 control the gear 2221 to rotate, for example: the electronic control box 13 sends a first instruction to the gear controller 223, the first instruction instructs the gear controller 223 to control the gear 2221 to rotate clockwise, and after the gear controller 223 receives the first instruction, the gear 2221 is controlled to rotate clockwise according to the first instruction; the electric control box 13 sends a second instruction to the gear controller 223, the second instruction instructs the gear controller 223 to control the gear 2221 to rotate counterclockwise, and after the gear controller 223 receives the first instruction, the gear 2221 is controlled to rotate counterclockwise according to the second instruction; the electronic control box 13 sends a third instruction to the gear controller 223, the third instruction instructs the gear controller 223 to control the gear 2221 to stop rotating, and when the gear controller 223 receives the third instruction, the gear 2221 is controlled to stop rotating according to the third instruction.

In the above embodiments, in order to achieve reliable rotation of the gear 2221, the gear 2221 surface of the gear 2221 is perpendicular to the blade surface of the blade 221.

In one implementation, as shown in fig. 31, when the upper body 2 is provided with one upper air inlet 21, two louver structures 22, 22a and 22b respectively, may be provided, the sizes of the upper air inlets 21 corresponding to the two louver structures 22 are the same, and the two louver structures 22 are separately controlled and correspond to the cooking range of the gas stove placed below the range hood; when the upper body 2 is provided with two upper air inlets 21, a louver structure 22 may be respectively disposed in each upper air inlet 21, wherein one air inlet is 22a, and the other air inlet is 22 b.

The working process of the range hood of the present disclosure is described in detail by the embodiments below.

Air intake 31 under main cigarette board 32 shelters from completely, and the area of air intake 31 is less down, and smoke ventilator in this disclosure can set up three kinds of mode, is respectively: the range hood is automatically in the common cooking mode when the range hood is started, because the oil smoke generated by common cooking is small in volume and slow in flow rate, the lower air inlet 31 is good in oil smoke suction and exhaust effect, the smoke exhaust efficiency is high, the oil smoke is sucked into the range hood through the lower air inlet 31 and is exhausted out of the room through the fan 12, therefore, in the common cooking mode, the lower air inlet 31 is controlled to be opened by controlling the main smoke baffle plate 32, the upper air inlet 21 is controlled to be closed by controlling the rotary shutter, specifically, after the common cooking mode is selected, the push rod motor 4 works, the push rod extends and moves in a straight line to drive the connecting rod 5 to move forwards, the connecting rod 5 drives the rotary supporting structure 6 to rotate to drive the main smoke baffle plate 32 to rotate, meanwhile, the side smoke baffle plate 33 is opened, when the main smoke baffle plate 32 rotates by 45 degrees, the oil smoke stops entering the range hood through, discharged to the outside through the fan 12; after the user closes the range hood, the push rod motor 4 moves, the push rod is shortened and moves linearly to drive the connecting rod 5 to contract, the connecting rod 5 drives the rotary supporting structure 6 to rotate so as to drive the main smoke baffle 32 to start rotating, and meanwhile, the side smoke baffle 33 is folded until the main smoke baffle 32 returns to the initial state; or, after selecting the ordinary cooking mode, the rotating motor directly controls the main smoke baffle 32 to be opened, the side smoke baffle 33 is opened at the same time, when the main smoke baffle 32 rotates 45 degrees, the main smoke baffle stops, and the oil smoke enters the range hood through the lower air inlet 31 and is discharged out of the room through the fan 12; after the user closes the range hood, the rotating motor directly controls the main smoke baffle 32 to close until the main smoke baffle 32 returns to the initial state; when a user selects a quick-frying mode, because the oil smoke generated during quick-frying is large in volume and high in flow rate, the oil smoke is sucked into the range hood through the upper air inlet 21 and is exhausted out of the room through the fan 12, the lower air inlet 31 is closed by controlling the main smoke baffle plate 32 and the upper air inlet 21 is opened by controlling the rotary shutter in the quick-frying mode, and the direction of the blades 221 can be adjusted based on the requirement of the user on the air inlet angle in the process of opening the shutter; specifically, after the stir-frying mode is selected, the blade 221 is controlled to rotate to open the upper air inlet 21, and the oil smoke enters the range hood through the upper air inlet 21 and is discharged out of the room through the fan 12; after the user closes the range hood, the vane 221 is controlled to rotate to close the upper air inlet 21; when a user selects a ventilation mode, the ventilation mode is mainly used for discharging peculiar smell in a kitchen, at this time, the opening efficiency of the upper air inlet 21 and the lower air inlet 31 is higher, air enters the inside of the range hood through the upper air inlet 21 and the lower air inlet 31 and is discharged to the outside through the fan 12, therefore, in the ventilation mode, the lower air inlet 31 is opened by controlling the main smoke baffle 32, the upper air inlet 21 is opened by controlling the rotary shutter, in the process of opening the shutter, the direction of the blades 221 can be adjusted based on the requirement of the user on the air inlet angle, specifically, after the ventilation mode is selected, the push rod motor 4 works, the push rod extends and linearly moves to drive the connecting rod 5 to move forwards, the connecting rod 5 drives the rotary support structure 6 to rotate to drive the main smoke baffle 32 to rotate, the side smoke baffle 33 is opened at the same time, or the rotary motor directly controls the main smoke baffle 32, meanwhile, the side smoke baffle 33 is opened, and when the main smoke baffle 32 rotates 45 degrees, the main smoke baffle stops, and oil smoke enters the range hood through the lower air inlet 31 and is discharged out of the room through the fan 12; the blades 221 are controlled to rotate so as to open the upper air inlet 21, and the oil smoke enters the range hood through the upper air inlet 21 and is discharged out of the room through the fan 12; after the user closes the range hood, the push rod motor 4 moves, the push rod is shortened and moves linearly to drive the connecting rod 5 to contract, the connecting rod 5 drives the rotary supporting structure 6 to rotate so as to drive the main smoke baffle 32 to start rotating, and meanwhile, the side smoke baffle 33 is folded until the main smoke baffle 32 returns to the initial state, or the rotary motor directly controls the main smoke baffle 32 to close until the main smoke baffle 32 returns to the initial state; the control vane 221 rotates to close the upper intake port 21.

Therefore, different air inlet modes are designed according to different cooking working condition requirements of users, the air suction efficiency of the range hood is greatly improved, and the probability of oil smoke leakage outwards is reduced.

Air intake 31 under main cigarette board 32 does not shelter from completely, and when air intake 31's area is great down, smoke ventilator in this disclosure can set up three kinds of mode, is respectively: a normal cooking mode, in which the main smoke barrier 32 is closed, however, because the lower air inlet 31 is still partially exposed outside the main smoke baffle 32, the oil smoke mainly enters the interior of the range hood from the lower air inlet 31 (corresponding to a near-suction mode), then discharged to the outside through the fan 12, and in the ordinary cooking mode, the rotary louver may be controlled to open the upper intake port 21, in the process of opening the shutter, the direction of the vanes 221 can be adjusted based on the requirement of the user on the air inlet angle, at this time, part of the oil smoke can enter the range hood through the upper air inlet 21, the oil smoke is discharged out of the room through the fan 12, specifically, the blade 221 is controlled to rotate so as to open the upper air inlet 21, the oil smoke enters the range hood through the upper air inlet 21 and is discharged out of the room through the fan 12; after the user closes the hood, the control vane 221 rotates to close the upper intake port 21. In the stir-frying mode, the main smoke baffle 32 is opened, and the oil smoke mainly enters the interior of the range hood through the lower air inlet 31 (equivalent to a cover suction mode), specifically, the push rod motor 4 works, the push rod extends and moves linearly to drive the connecting rod 5 to move forwards, the connecting rod 5 drives the rotary supporting structure 6 to rotate so as to drive the main smoke baffle 32 to rotate, and meanwhile, the side smoke baffle 33 is opened, or the rotary motor directly controls the main smoke baffle 32 to be opened, and meanwhile, the side smoke baffle 33 is opened, and when the main smoke baffle 32 rotates by 45 degrees, the rotary motor stops, and the oil smoke enters the range hood through the lower air inlet 31 and is exhausted outdoors through the fan 12; after the user closes the range hood, the push rod motor 4 moves, the push rod is shortened and moves linearly to drive the connecting rod 5 to contract, the connecting rod 5 drives the rotating support structure 6 to rotate so as to drive the main smoke baffle 32 to start rotating, and meanwhile, the side smoke baffle 33 is folded until the main smoke baffle 32 returns to the initial state, or the rotating motor directly controls the main smoke baffle 32 to close until the main smoke baffle 32 returns to the initial state; certainly, in the stir-fry mode, the rotary louver can be controlled to open the upper air inlet 21, the direction of the blades 221 can be adjusted based on the requirement of a user on the air inlet angle in the process of opening the louver, at this time, part of oil smoke can enter the range hood through the upper air inlet 21 and is exhausted outdoors through the fan 12, specifically, the blades 221 are controlled to rotate to open the upper air inlet 21, and the oil smoke enters the range hood through the upper air inlet 21 and is exhausted outdoors through the fan 12; after the user closes the range hood, the blade 221 is controlled to rotate to close the upper air inlet 21; in the ventilation mode, the main smoke barrier 32 is controlled to open the lower air inlet 31, and the rotary shutter is controlled to open the upper air inlet 21.

On the basis of the corresponding embodiments of fig. 25 to 31, as shown in fig. 32, the method further includes: and the temperature detector 31a is arranged below the lower air inlet 31, and the temperature detector 31a is electrically connected with the electronic control box 13 and is used for transmitting detection data to the electronic control box 13.

Since heat is generated when the cooking operation is performed under the range hood, whether the user starts the cooking operation can be sensed by the temperature detector 31a, and if so, the electric control box 13 controls the range hood to start working.

Specifically, a first temperature preset threshold is preset, and if the electronic control box 13 detects that the temperature data detected by the temperature detector 31a is greater than the first temperature preset threshold, the electronic control box 13 controls the fan 12 to start working.

The kitchen air purification device has two working modes, namely a normal mode and a stir-frying mode, if the electric control box 13 detects that the temperature data detected by the temperature detector 31a is greater than a first preset temperature threshold and less than a second preset temperature threshold, the normal mode is started, at the moment, the main smoke baffle 32 is in a closed state, and the fan 12 starts to work; if the temperature data detected by the temperature detector 31a detected by the electric control box 13 is greater than the second temperature preset threshold and less than the third temperature preset threshold, the stir-frying mode is started, at this time, the main smoke baffle 32 is opened, and the fan 12 starts to work.

The first temperature preset threshold is smaller than the second temperature preset threshold, the second temperature preset threshold is smaller than the third temperature preset threshold, specific data can be preset, the specific data can also be adjusted in real time based on big data, and the specific data can also be manually set by a user.

It should be noted that a plurality of temperature detectors 31a may be disposed in the lower intake vent 31, and the number and positions of the temperature detectors 31a are not limited in the present disclosure.

Whether cook the operation based on the detection data that temperature detector 3a obtained is judged, if cook the operation, then open fan 12 automatically and inhale and arrange the work, avoid the user not in time manually open kitchen air purification equipment and the poor problem of kitchen air quality that leads to, effectively promoted user experience.

Whether cook the operation based on the detection data that temperature detector 3a obtained is judged, if cook the operation, then open fan 12 automatically and inhale and arrange the work, avoid the user not in time manually open kitchen air purification equipment and the poor problem of kitchen air quality that leads to, effectively promoted user experience.

In one embodiment, as shown in fig. 32, further includes: odor detector 2 a.

The peculiar smell detector 2a is arranged in the upper machine body 2;

the odor detector 2a is electrically connected with the electronic control box 13 and is used for transmitting detection data to the electronic control box 1313.

This peculiar smell detector 2a is arranged in detecting whether there is the peculiar smell in the kitchen to judge whether the kitchen needs the ventilation, and peculiar smell detector 2a sends the detection data that detects for automatically controlled box 1313, and automatically controlled box 1313 judges whether the kitchen needs the ventilation based on this detection data, if the judgement result is that the kitchen needs the ventilation, automatically controlled box 1313 control fan 1212 operates, also can control and open main smoke baffle 3232, in order to reach the purpose of quick ventilation, inhale the peculiar smell in row kitchen fast.

It should be noted that a plurality of odor detectors 2a may be provided inside the upper body 22, and the present disclosure does not impose a limitation on the number and positions of the odor detectors 2 a.

The working process of the novel range hood of the embodiment is described in detail through the embodiment.

Air intake 31 under main cigarette board 32 shelters from completely, and the area of air intake 31 is less down, and smoke ventilator in this disclosure can set up three kinds of mode, is respectively: the range hood comprises a common cooking mode, a quick-frying mode and a ventilation mode, when the range hood is started, which working mode the range hood is in is determined based on data detected by a temperature detector 31a and an odor detector 2a, when the range hood is determined to be in the common cooking mode according to the data detected by the temperature detector 31a, because the oil smoke generated by common cooking is small in amount and slow in flow rate, the lower air inlet 31 is adopted to have good oil smoke sucking and discharging effect and high smoke discharging efficiency, the oil smoke is sucked into the range hood through the lower air inlet 31 and discharged out of the room through a fan 12, therefore, in the common cooking mode, a main smoke baffle plate 32 is controlled to open the lower air inlet 31, a rotary shutter is controlled to close an upper air inlet 21, specifically, after the common cooking mode is selected, a push rod motor 4 works, a push rod extends and moves linearly to drive a connecting rod 5 to move forwards, the connecting rod 5 drives a rotary, meanwhile, the side smoke baffle 33 is opened, and when the main smoke baffle 32 rotates 45 degrees, the main smoke baffle stops, and oil smoke enters the range hood through the lower air inlet 31 and is discharged out of the room through the fan 12; after the user closes the range hood, the push rod motor 4 moves, the push rod is shortened and moves linearly to drive the connecting rod 5 to contract, the connecting rod 5 drives the rotary supporting structure 6 to rotate so as to drive the main smoke baffle 32 to start rotating, and meanwhile, the side smoke baffle 33 is folded until the main smoke baffle 32 returns to the initial state; or, after the ordinary cooking mode is selected, the rotating motor directly controls the main smoke baffle 32 to be opened, meanwhile, the side smoke baffle 33 is opened, when the main smoke baffle 32 rotates 45 degrees, the main smoke baffle stops rotating, and the oil smoke enters the range hood through the lower air inlet 31 and is discharged out of the room through the fan 12; after the user closes the range hood, the rotating motor directly controls the main smoke baffle 32 to close until the main smoke baffle 32 returns to the initial state; when the quick-frying mode is selected, because the oil smoke generated during quick-frying is large in volume and high in flow speed, the oil smoke suction and exhaust effect is good by adopting the upper air inlet 21, the smoke exhaust efficiency is high, the oil smoke is sucked into the range hood through the upper air inlet 21 and is exhausted out of the room through the fan 12, therefore, in the quick-frying mode, the main smoke baffle plate 32 is controlled to close the lower air inlet 31, the rotary shutter is controlled to open the upper air inlet 21, and in the process of opening the shutter, the direction of the blades 221 can be adjusted based on the requirement of a user on the air inlet angle; specifically, after the stir-frying mode is selected, the blade 221 is controlled to rotate to open the upper air inlet 21, and the oil smoke enters the range hood through the upper air inlet 21 and is discharged out of the room through the fan 12; after the user closes the range hood, the blade 221 is controlled to rotate to close the upper air inlet 21; when the ventilation mode is selected, the ventilation mode is mainly used for discharging peculiar smell in a kitchen, at this time, the opening efficiency of the upper air inlet 21 and the lower air inlet 31 is higher, air enters the interior of the range hood through the upper air inlet 21 and the lower air inlet 31 and is discharged to the outside through the fan 12, therefore, in the ventilation mode, the main smoke baffle 32 is controlled to open the lower air inlet 31, the rotary shutter is controlled to open the upper air inlet 21, in the process of opening the shutter, the direction of the blades 221 can be adjusted based on the requirement of a user on the air inlet angle, specifically, after the ventilation mode is selected, the push rod motor 4 works, the push rod extends and linearly moves to drive the connecting rod 5 to move forwards, the connecting rod 5 drives the rotary supporting structure 6 to rotate to drive the main smoke baffle 32 to rotate, and simultaneously, the side smoke baffle 33 is opened, or the rotary motor directly controls the main, meanwhile, the side smoke baffle 33 is opened, and when the main smoke baffle 32 rotates 45 degrees, the main smoke baffle stops, and oil smoke enters the range hood through the lower air inlet 31 and is discharged out of the room through the fan 12; the blades 221 are controlled to rotate to open the upper air inlet 21, and the oil smoke enters the range hood through the upper air inlet 21 and is discharged out of the room through the fan 12; after the user closes the range hood, the push rod motor 4 moves, the push rod is shortened and moves linearly to drive the connecting rod 5 to contract, the connecting rod 5 drives the rotary supporting structure 6 to rotate so as to drive the main smoke baffle 32 to start rotating, and meanwhile, the side smoke baffle 33 is folded until the main smoke baffle 32 returns to the initial state, or the rotary motor directly controls the main smoke baffle 32 to close until the main smoke baffle 32 returns to the initial state; the control vane 221 rotates to close the upper intake port 21.

Therefore, different air inlet modes are designed according to different cooking working condition requirements of users, the air suction efficiency of the range hood is greatly improved, and the probability of oil smoke leakage outwards is reduced.

Air intake 31 under main cigarette board 32 does not shelter from completely, and when air intake 31's area is great down, smoke ventilator in this disclosure can set up three kinds of mode, is respectively: the range hood comprises a common cooking mode, a stir-frying mode and a ventilation mode, which is determined based on data detected by a temperature detector 31a and a peculiar smell detector 2a, wherein when the common cooking mode is determined according to the data detected by the temperature detector 31a, a main smoke baffle 32 is closed, but because a lower air inlet 31 is partially exposed outside the main smoke baffle 32, oil smoke mainly enters the range hood from the lower air inlet 31 (equivalent to a close suction mode) and then is exhausted out of the room through a fan 12, of course, in the common cooking mode, an upper air inlet 21 can be controlled to be opened by a rotary shutter, in the process of opening the shutter, the direction of a blade 221 can be adjusted based on the requirement of a user on an air inlet angle, and at the moment, part of the oil smoke can enter the range hood through the upper air inlet 21, the oil smoke is discharged out of the room through the fan 12, specifically, the blade 221 is controlled to rotate so as to open the upper air inlet 21, the oil smoke enters the range hood through the upper air inlet 21, and the oil smoke is discharged out of the room through the fan 12; after the user closes the hood, the control vane 221 rotates to close the upper intake port 21. In the stir-frying mode, the main smoke baffle 32 is opened, and oil smoke mainly enters the interior of the range hood through the lower air inlet 31 (equivalent to a cover suction mode), specifically, the push rod motor 4 works, the push rod extends and moves linearly to drive the connecting rod 5 to move forwards, the connecting rod 5 drives the rotary supporting structure 6 to rotate so as to drive the main smoke baffle 32 to rotate, and meanwhile, the side smoke baffle 33 is opened, or the rotary motor directly controls the main smoke baffle 32 to be opened and simultaneously, the side smoke baffle 33 is opened, and when the main smoke baffle 32 rotates 45 degrees, the rotary motor stops, and the oil smoke enters the range hood through the lower air inlet 31 and is exhausted outdoors through the fan 12; after the user closes the range hood, the push rod motor 4 moves, the push rod shortens and moves linearly to drive the connecting rod 5 to contract, the connecting rod 5 drives the rotary supporting structure 6 to rotate to drive the main smoke baffle 32 to start rotating, and meanwhile, the side smoke baffle 33 is folded until the main smoke baffle 32 returns to the initial state, or the rotary motor directly controls the main smoke baffle 32 to close until the main smoke baffle 32 returns to the initial state; certainly, in the stir-fry mode, the rotary louver can be controlled to open the upper air inlet 21, the direction of the blades 221 can be adjusted based on the requirement of a user on the air inlet angle in the process of opening the louver, at this time, part of oil smoke can enter the range hood through the upper air inlet 21 and is exhausted outdoors through the fan 12, specifically, the blades 221 are controlled to rotate to open the upper air inlet 21, and the oil smoke enters the range hood through the upper air inlet 21 and is exhausted outdoors through the fan 12; after the user closes the range hood, the blade 221 is controlled to rotate to close the upper air inlet 21; in the ventilation mode, the main smoke barrier 32 is controlled to open the lower air inlet 31, and the rotary shutter is controlled to open the upper air inlet 21.

It should be noted that the main smoke barrier 32 in the present disclosure may be rotated to any angle and fixed at the angle, and the angle of the above-mentioned stir-fry mode may be 45 degrees, for example only, or 30 degrees, etc., and the angle may also be automatically selected according to the preference of the user, which is not limited by the present disclosure.

The operation flow of the range hood in the disclosure is as follows:

① the user activates the hood.

② the temperature detector 31a is activated, and when the temperature detected by the temperature detector 31a is at room temperature within one minute, ③ is entered, and when the temperature detected by the temperature detector 31a is greater than a first predetermined threshold, the user mode selection interface ④ is entered.

③ odor detector 2a is activated to determine if there is an odor in the kitchen, and if so, enters ventilation mode, and if not, enters user mode selection interface ④.

④ the user mode selection interface mainly has two modes of quick frying and ordinary cooking, if the user selects the quick frying mode, the fan 12 is turned on, the main smoke baffle 32 is controlled to close the lower air inlet 31, the rotary shutter is controlled to open the upper air inlet 21, at this time, the oil smoke is mainly discharged out of the room through the upper air inlet 21, if the user selects the ordinary cooking mode, the fan 12 is turned on, the main smoke baffle 32 is controlled to open the lower air inlet 31, the rotary shutter is controlled to close the upper air inlet 21, at this time, the oil smoke is discharged out of the room through the lower air inlet 31.

⑤ when the temperature detected by the temperature detector 31a is at room temperature within one minute, then ② is entered;

⑥ the user closes the range hood, detects whether the main louver 32 is open, and if so, controls the main louver 32 to close, detects whether the shutter 22 is open, and if so, controls the shutter 22 to close.

Different air inlet modes are designed according to different cooking requirements of users, air suction efficiency of the range hood is greatly improved, and probability of oil smoke leakage outwards is reduced.

The operation flow of the range hood in the present disclosure may also be:

① the user activates the hood.

② the temperature detector 31a starts to work, when the temperature detected by the temperature detector 31a is at room temperature within one minute, ③ is entered, and when the temperature detected by the temperature detector 31a is greater than a first preset threshold, the detection data is sent to the electronic control box 13.

③ the odor detector 2a starts to work and sends the detection result to the electronic control box 13.

④ the electric control box 13 detects the section to which the temperature detected by the temperature detector 31a belongs, if the temperature is smaller than the second preset threshold and larger than the first preset threshold, the range hood is controlled to enter the ordinary cooking mode, if the temperature is smaller than the third preset threshold and larger than the second preset threshold, the range hood is controlled to enter the quick-frying mode, and the electric control box 13 determines whether the ventilation mode needs to be started according to the detection data of the peculiar smell detector 2 a.

If the stir-frying mode is selected, the fan 12 is started, the main smoke baffle 32 is controlled to close the lower air inlet 31, the rotary shutter is controlled to open the upper air inlet 21, and at the moment, the oil smoke is mainly exhausted out of the room through the upper air inlet 21; if the common cooking mode is selected, the fan 12 is started, the main smoke baffle 32 is controlled to open the lower air inlet 31, the rotary shutter is controlled to close the upper air inlet 21, and at the moment, the oil smoke is discharged out of the room through the lower air inlet 31; if the ventilation mode is selected, the fan 12 is turned on, the main smoke barrier 32 is controlled to open the lower air inlet 31, and the rotary shutter is controlled to open the upper air inlet 21.

⑤ when the temperature detected by the temperature detector 31a is at room temperature within one minute, then ③ is entered;

⑥ the user turns off the hood, the electronic control box 13 detects whether the main smoke barrier 32 is open, if so, controls the main smoke barrier 32 to close.

Different air inlet modes are designed according to different cooking requirements of users, air suction efficiency of the range hood is greatly improved, and probability of oil smoke leakage outwards is reduced.

On the basis of the embodiment corresponding to fig. 1 to 23, as shown in fig. 33, the lower air inlet 31 includes a first lower air inlet 31b and a second lower air inlet 32b, a rotatable main smoke baffle 32(331a, 332a, 331a being the main smoke baffle 32 located at the first lower air inlet 31b, which may also be referred to as a first main smoke baffle 331a, 332a being the main smoke baffle 32 located at the second lower air inlet 32b, which may also be referred to as a second main smoke baffle 332a) is disposed at one side of the first lower air inlet 31b and side smoke baffles 33(333a, 334a being the side smoke baffles 33a located at two sides of the main smoke baffle 32 corresponding to the first lower air inlet 31b, which may also be referred to as a first side smoke baffle 333a, 334a being the side smoke baffles 33a located at two sides of the main smoke baffle 32 corresponding to the second lower air inlet 32b, also referred to as a second side smoke barrier 334 a); the surface of the side smoke baffle 33 is of a foldable structure, and the main smoke baffle 32 can drive the surface of the side smoke baffle 33 to fold and unfold when rotating; the first air inlet and the second air inlet are respectively positioned on the left side and the right side of the lower machine body 3.

The first lower intake vent 31b and the second lower intake vent 32b may be located on a user-facing side of the lower body 3. When the range hood works, the electric control box 13 controls the fan 12 to operate, so that oil smoke is sucked through the first lower air inlet 31b, and/or the second lower air inlet 32b, and/or the upper air inlet 21, and the purpose of smoke exhaust is achieved.

Because the first lower air inlet 31b and the second lower air inlet 32b of the range hood are closer to the cooking utensil, the oil smoke is easier to be sucked and exhausted, therefore, the first lower air inlet 31b and the second lower air inlet 32b of the range hood are located at the lower position of the lower machine body 3 as much as possible, so that the first lower air inlet 31b and the second lower air inlet 32b are close to the cooking utensil, preferably, the left side of one side, facing a user, of the whole lower machine body 3 is the first lower air inlet 31b, and the right side of the whole lower machine body is the second lower air inlet 32 b.

It should be noted that, in the present disclosure, for the sake of clarity of explanation, the coverage area of the first lower air inlet 31b and the second lower air inlet 32b is the whole lower machine body 3, but the present disclosure is not limited thereto in practical applications.

Further, the first side surface of the first main smoke barrier 331a is disposed on the upper side of the first lower air inlet 31b through the first rotating shaft;

the second side surface and the third side surface of the first main smoke baffle 331a are respectively provided with a first side smoke baffle 333a, the surface of the first side smoke baffle 333a is of a foldable structure, and the second side surface and the third side surface are two opposite side surfaces in the first main smoke baffle 331 a; the first main smoke barrier 331a can rotate around the first rotation axis to fold and unfold the panel of the first side smoke barrier 333 a.

First main cigarette board 331a and two first side cigarette boards 333a have constituted the cigarette structure of holding together on the first air intake, when first main cigarette board 331a rotates to open in order to drive with the face that two first side cigarette boards 333a expand, this structure can be gathered together the inside oil smoke of fuselage 3 down that gets into from first air intake 31b and hold together in the structure of holding together that first main cigarette board 331a and two first side cigarette boards 333a enclose, the oil smoke can outwards not escape to the suction of smoke ventilator has been promoted.

Because the both sides at first main cigarette board 331a have set up first side cigarette board 333a respectively, thereby make the both sides of first main cigarette board 331a become enclosed construction, in the in-process that rises when the oil smoke, can be blocked by first main cigarette board 331a, thereby it inhales down fuselage 3 inside to inhale through first air intake 31b under first main cigarette board 331a, at the inspiratory in-process, because the both sides of first main cigarette board 331a are enclosed construction, thereby the outside loss of enclosed construction of this both sides can not be followed to the oil smoke, smoke exhaust effect has been promoted, and further user experience has been promoted.

Further, the first side surface of the second main smoke baffle 332a is disposed at the upper side of the second lower air inlet 32b through the second rotating shaft,

a second side face and a third side face of the second main smoke baffle plate 332a are respectively provided with a second side smoke baffle plate 334a, the plate surface of the second side smoke baffle plate 334a is of a foldable structure, and the second side face and the third side face are two opposite side faces in the second main smoke baffle plate 332 a; the second main smoke barrier 332a can rotate around the second rotation axis to fold and unfold the panel of the second side smoke barrier 334 a.

The second keeps off cigarette board 332a and two second sides and keeps off cigarette board 334a and has constituted holding together the cigarette structure on the second air intake, when the second is main keeps off cigarette board 332a rotatory to be opened in order to drive with two second sides keep off the face of cigarette board 334a and expand, this structure can gather together the inside oil smoke of fuselage 3 down that gets into from second lower air intake 32b in the structure is kept off gathering together that cigarette board 332a and two second sides keep off cigarette board 334a enclose to the second owner, the oil smoke can not outwards loss to smoke ventilator's suction effect has been promoted.

Because the both sides at second main cigarette board 332a of keeping off have set up second side cigarette board 334a respectively, thereby make the second main both sides of keeping off cigarette board 332a become enclosed construction, in-process when the oil smoke is ascending, can be kept off cigarette board 332a by the second main, thereby it inhales down fuselage 3 inside to keep off second lower air intake 32b under the cigarette board 332a through the second main, at the inspiratory in-process, because the both sides that the second main cigarette board 332a of keeping off are enclosed construction, thereby the outside loss of enclosed construction of this both sides can not be followed to the oil smoke, smoke exhaust effect has been promoted, and further user experience has been promoted.

Further, when using cooking utensils such as gas-cooker to cook, often can produce the oil smoke, the user generally can use smoke ventilator to inhale the row to the oil smoke that produces, but the smoke ventilator that present lid was inhaled only has an air intake and a baffle, when opening the smoke ventilator, need open this baffle, let the air intake expose, in order to reach the purpose of inhaling the row oil smoke through the air intake, but the user cooks if only use the gas range head on the left side, the gas range head on the right is not used, at this moment, do not have the air intake that the gas range head on the right corresponds of necessarily opening. And two independent air intakes have been set up in this disclosure to can be according to actual need nimble open the main cigarette board 32 that keeps off in the required lower air intake 31, effectively promoted user experience, and because the area that keeps off cigarette board 32 this moment is less than correlation technique, consequently, can effectively save the electric quantity.

In this embodiment, the lower body 3 is provided with a first lower air inlet 31b and a second lower air inlet 32b, and one side of each of the first lower air inlet 31b and the second lower air inlet 32b, which is far away from the lower body 3, is provided with a rotatable main smoke baffle 32 and side smoke baffles 33 positioned on two sides of the main smoke baffle 32; the surface of the side smoke baffle 33 is of a foldable structure, and the main smoke baffle 32 can drive the surface of the side smoke baffle 33 to fold and unfold when rotating; the first lower intake vents 31b and the second lower intake vents 32b are located at the left and right sides of the lower body 3, respectively. Owing to set up two independent air intakes, set up main cigarette board 32 and side cigarette board 33 on each air intake respectively, thereby can select the air intake of opening which one side according to actual need, because single main cigarette board 32 that keeps off is compared in the whole cigarette board volume that keeps off in the correlation technique diminishes, thereby effectively saved the power consumption, and at the in-process of suction and exhaust oil smoke, can effectively avoid the outside loss of oil smoke, promoted smoke exhaust effect, and further promoted user experience.

In order to improve the suction and exhaust effect of the range hood, the coverage area of the first main smoke barrier 331a is smaller than or equal to the area of the first lower air inlet 31 b.

The coverage area of the first main smoke baffle 331a is smaller than or equal to the area of the first lower air inlet 31b, so that when a small amount of oil smoke exists, the first main smoke baffle 331a does not need to be opened, at the moment, the first main smoke baffle 331a is closed, the oil smoke can be sucked into the lower machine body 3 through the exposed first lower air inlet 31b, and therefore when the small amount of oil smoke exists, the first main smoke baffle 331a does not need to be opened and can be effectively sucked and exhausted.

In one implementation manner, the length of the second side or the third side of the first main smoke baffle 331a may be set to be less than or equal to the length of the corresponding side of the first lower air inlet 31 b.

In order to clearly explain the solution of the present disclosure, the length of the second side or the third side of the first main smoke barrier 331a is referred to as the width of the first main smoke barrier 331a, and the lengths of the other two sides are referred to as the length of the first main smoke barrier 331 a.

The width of the first main smoke baffle 331a is smaller than the width of the first lower air inlet 31b, so that when the first main smoke baffle 331a is closed, the first lower air inlet 31b is not completely shielded, and at the moment, the oil smoke can be sucked into the lower machine body 3 from the exposed first lower air inlet 31b, so that when a small amount of oil smoke exists, the first main smoke baffle 331a does not need to be opened, and the oil smoke can be effectively sucked and exhausted.

In one implementation manner, in order to improve the blocking effect of the first main smoke barrier 331a on the oil smoke, the rotation angle of the first main smoke barrier 331a is less than or equal to 45 degrees. That is, the angle between the width direction of the first main smoke baffle 331a and the gravity direction is less than or equal to 45 degrees.

The coverage area of the second main smoke baffle 332a is smaller than or equal to the area of the second lower air inlet 32 b.

The area of the second lower air inlet 32b is smaller than or equal to the coverage area of the second main smoke baffle 332a, so that the second main smoke baffle 332a does not need to be opened when a small amount of oil smoke exists, the second main smoke baffle 332a is closed at the moment, the oil smoke can be sucked into the lower machine body 3 through the exposed second lower air inlet 32b, and the second main smoke baffle 332a does not need to be opened when the small amount of oil smoke exists.

In one implementation, the length of the second side or the third side of the second main smoke baffle 332a may be set to be less than or equal to the length of the corresponding edge of the second lower air inlet 32 b.

In order to make the disclosure clearer, the length of the second side or the third side of the second main smoke barrier 332a is referred to as the width of the second main smoke barrier 332a, and the lengths of the other two sides are referred to as the length of the second main smoke barrier 332 a.

The width of the second main smoke baffle 332a is smaller than that of the second lower air inlet 32b, so that when the second main smoke baffle 332a is closed, the second lower air inlet 32b is not completely shielded, at the moment, the oil smoke can be sucked into the lower machine body 3 from the exposed second lower air inlet 32b, and therefore when a small amount of oil smoke exists, the second main smoke baffle 332a does not need to be opened, and the oil smoke can be effectively sucked and exhausted.

In one implementation, in order to improve the blocking effect of the second main smoke barrier 332a on the smoke, the rotation angle of the second main smoke barrier 332a is less than or equal to 45 degrees. That is, the angle between the width direction of the second main smoke baffle 332a and the gravity direction is less than or equal to 45 degrees.

In one embodiment, as shown in fig. 33, the range hood further includes: an oil cup 34;

an oil cup 34 is located in the lower body 3 at the end facing away from the upper body 2.

Range hood often can deposit the oil stain, consequently, can set up oil cup 34 bottom range hood, after the deposit oil stain of range hood, the oil stain can fall into in oil cup 34 under the effect of gravity to avoided the oil stain to drop on top of a kitchen range or gas-cooker, effectively promoted user experience.

In one embodiment, further comprising: a first push rod motor and a first connecting rod,

the first push rod motor is positioned in the host shell 11, the moving direction of a push rod in the first push rod motor is the gravity direction, and the movable end of the push rod in the first push rod motor is connected with one end of a first connecting rod;

the other end of the first connecting rod is connected with the first main smoke baffle 331 a;

the electric control box 13 is electrically connected with the first push rod motor and is used for controlling the working state of the first push rod motor.

The first push rod motor and the first link are similar to the push rod motor 4 and the link 5 in fig. 10 and the corresponding embodiment, and are not described again here.

Set up the push rod in the first push rod motor, first push rod motor can control first push rod and carry out flexible linear motion at the during operation, in this disclosure, drives the rotation of first owner fender cigarette board 331a through setting up first push rod motor and first connecting rod, and the expansion end of push rod links to each other with the one end of first connecting rod in the first push rod motor connects, and the other end of first connecting rod is connected on first owner keeps off cigarette board 331 a. When the first push rod motor works, the first push rod motor is controlled to extend downwards and move linearly, at the moment, the first push rod can drive the first connecting rod to move forwards (namely, move towards a user), the first connecting rod can drive the first main smoke baffle 331a to rotate in a direction away from the first lower air inlet 31b, so that the first main smoke baffle 331a is opened, meanwhile, the first main smoke baffle 331a drives the first side smoke baffles 333a at two sides to be opened, when the first main smoke baffle 331a rotates to a preset angle, the first push rod motor stops working, oil smoke enters the range hood through the first lower air inlet 31b (cover suction), and is discharged out of a room through the fan 12; when the operation is stopped, the first push rod motor controls the first push rod to shorten and move linearly, so as to drive the first link to contract, the first link drives the first main smoke barrier 331a to start rotating in a direction close to the first lower air inlet 31b, and meanwhile, the first smoke barrier 333a on the first side of the first main smoke barrier 331a is folded until the first main smoke barrier 331a returns to the initial state.

When the area of the first main smoke barrier 331a is large, the first main smoke barrier 331a and the first side smoke barrier 333a can be reliably rotated by providing the first push rod motor and the first link.

In one embodiment, in order to further enhance the reliable rotation of the first main smoke barrier 331a and the first side smoke barrier 333a, the range hood further comprises: a first rotary support structure;

one side of the first rotary supporting structure is connected with the first main smoke baffle 331a, and the other side of the first rotary supporting structure is connected with the other end of the first connecting rod.

By arranging the first rotary supporting structure, the opening, closing and supporting of the first main smoke barrier 331a and the first side smoke barrier 333a can be realized more flexibly and reliably.

The first rotation support structure is similar to the rotation support structure 6 in fig. 10 and the corresponding embodiment, and is not described herein again.

Because the first rotary supporting structure is connected with the first push rod in the first push rod motor through the first connecting rod, when the device works, the first push rod motor works to control the first push rod to extend downwards and move linearly, at the moment, the first push rod drives the first connecting rod to move forwards (namely, move towards a user), the first connecting rod drives the first rotary supporting structure to move towards the user, and the first rotary supporting structure will drive the first main smoke barrier 331a to rotate in the direction away from the first lower air inlet 31b, thereby opening the first main smoke barrier 331a, and at the same time the first main smoke barrier 331a drives the first side smoke barriers 333a on both sides to open, when the first main smoke baffle 331a rotates to a preset angle, the first push rod motor stops working, and the oil smoke enters the range hood through the first lower air inlet 31b (cover suction) and is discharged out of the room through the fan 12; when the cigarette stopping device stops working, the first push rod motor controls the first push rod to shorten and move linearly to drive the first connecting rod to contract, the first connecting rod drives the first rotary supporting structure to move in a direction away from a user, so that the first main cigarette blocking plate 331a is driven to rotate in a direction close to the first lower air inlet 31b, and meanwhile, the first cigarette blocking plates 333a on two sides of the first main cigarette blocking plate 331a are folded until the first main cigarette blocking plate 331a returns to an initial state.

Because the first rotary supporting structure can not only drive the first main smoke baffle 331a to rotate, but also can play a role in supporting the first main smoke baffle 331a in the rotating process of the first main smoke baffle 331a and rotate to a preset position, thereby improving the reliability of the rotation of the first main smoke baffle 331 a.

In one embodiment, further comprising: a third support bar and a fourth support bar;

one end of the third support bar is connected to the lower body 3 or the upper body 2, the other end of the third support bar is hinged (for example, hinged by a bolt) to one end of the fourth support bar, and the side wall of the fourth support bar is connected to the first main smoke barrier 331a (as shown in fig. 12), so as to support the first main smoke barrier 331a at the current rotation position when the first main smoke barrier 331a rotates.

The third supporting structure is similar to the first supporting rod 71 in fig. 10-12 and the corresponding embodiment, and is not described herein again, and the fourth supporting structure is similar to the second supporting rod 72 in fig. 10-12 and the corresponding embodiment, and is not described herein again.

The first main smoke barrier 331a is supported by the side wall of the fourth support bar, and the side wall of the fourth support bar has a larger area, so that the support is more reliable.

In one embodiment, the first side smoke barrier 333a includes: a first smoke-blocking fan surface and a plurality of first shafts;

the first smoke blocking fan surface is in a fan shape after being unfolded;

the first shafts are arranged along the radial direction of the first smoke blocking fan surface.

The first smoke blocking surface of the first smoke blocking plate 333a may be flexible or rigid, and the present disclosure is not limited thereto, and the first smoke blocking surface may be configured to be folded and unfolded similar to the folding fan used in daily life.

The first side smoke barrier 333a has a structure similar to that of the side smoke barrier 33 described in the above-mentioned fig. 13-14 and the corresponding embodiment, the first smoke barrier sector has a structure similar to that of the smoke barrier sector 331 described in the above-mentioned fig. 13-14 and the corresponding embodiment, and the first axis has a structure similar to that of the axis 332 described in the above-mentioned fig. 13-14 and the corresponding embodiment, and therefore, the description thereof is omitted.

This patent adopts the principle of folding fan or hinge, shelters from first main cigarette board 331a both sides air inlet for the air inlet is only from a direction air inlet in the front. When the range hood is opened, the first main smoke barrier 331a is opened, and the first side smoke barrier 333a is also opened, so that the oil smoke generated during cooking enters the range hood only from one direction at the front side, and is discharged to the outside through the fan 12, thereby improving the smoking efficiency.

In one embodiment, the plurality of first axes are evenly distributed in the first smoke blocking sector.

In one embodiment, the two ends of the first smoke blocking fan surface are respectively provided with a third fixing structure and a fourth fixing structure;

the third fixing structure is connected with the first main smoke barrier 331 a;

the fourth fixed structure is connected with the lower body 3.

In order to reliably fix the first side smoke baffle 333a and the range hood, a third fixing structure and a fourth fixing structure are respectively arranged at two ends of the first smoke baffle sector, and the third fixing structure is connected with the first main smoke baffle 331 a; the fourth fixed structure is connected with the lower body 3.

In one implementation, in order to avoid the side smoke barrier 33 from affecting the overall aesthetic effect of the range hood after being folded, the panel between the two first axes is folded toward the side close to the first lower air inlet 31b, so that when the first main smoke barrier 331a is closed, the folded first side smoke barrier 333a is located below the first main smoke barrier 331a and is covered by the first main smoke barrier 331a, and therefore, the first side smoke barrier 333a is not exposed outside, the aesthetic effect of the range hood is effectively improved, and the problem that the first smoke barrier sector of the exposed first side smoke barrier 333a is damaged can also be avoided because the side smoke barrier 33 is received below the first main smoke barrier 331 a.

In one embodiment, the range hood further comprises: the second push rod motor is positioned inside the host shell 11, the movement direction of a push rod in the second push rod motor is the gravity direction, and the movable end of the push rod in the second push rod motor is connected with one end of the second connecting rod;

the other end of the second connecting rod is connected with a second main smoke baffle 332 a;

the electric control box 13 is electrically connected with the second push rod motor and is used for controlling the working state of the second push rod motor.

The second push rod motor and the second connecting rod are similar to the push rod motor 4 and the connecting rod 5 in fig. 10 and the corresponding embodiment, and are not described again here.

Set up the push rod in the second push rod motor, the second push rod motor can control the second push rod to carry out flexible linear motion at the during operation, in this disclosure, drives the rotation that the second owner kept off cigarette board 332a through setting up second push rod motor and second connecting rod, and the expansion end of push rod links to each other with the one end of second connecting rod in the second push rod motor connects, and the other end of second connecting rod is connected on second owner keeps off cigarette board 332 a. When the second push rod motor works, the second push rod motor is controlled to extend downwards and move linearly, at the moment, the second push rod can drive the second connecting rod to move forwards (namely, move towards a user), the second connecting rod can drive the second main smoke baffle 332a to rotate in the direction departing from the second lower air inlet 32b, so that the second main smoke baffle 332a is opened, meanwhile, the second main smoke baffle 332a drives the second side smoke baffle 334a on the two sides to be opened, when the second main smoke baffle 332a rotates to a preset angle, the second push rod motor stops working, oil smoke enters the range hood through the second lower air inlet 32b (cover suction), and is discharged out of a room through the fan 12; when the operation is stopped, the second push rod motor controls the second push rod to shorten and move linearly, so as to drive the second connecting rod to contract, the second connecting rod drives the second main smoke baffle 332a to start rotating in a direction close to the second lower air inlet 32b, and meanwhile, the second side smoke baffles 334a on two sides of the second main smoke baffle 332a are folded until the second main smoke baffle 332a returns to the initial state.

When the area of the second main smoke baffle 332a is large, the second main smoke baffle 332a and the second side smoke baffle 334a can be reliably rotated by arranging the second push rod motor and the second connecting rod.

In one embodiment, for further reliable rotation of the second main smoke barrier 332a and the second side smoke barrier 334a, the range hood further comprises: a second rotary support structure;

one side of the second rotary supporting structure is connected to the second main smoke barrier 332a, and the other side of the second rotary supporting structure is connected to the other end of the second connecting rod.

Through setting up the rotatory bearing structure of second, can realize that the second is main keeps off opening and shutting and support of cigarette board 332a and second side fender cigarette board 334a more nimble reliable.

The second rotation support structure is similar to the rotation support structure 6 in fig. 10 and the corresponding embodiment, and is not described again here.

Because the second rotary supporting structure is connected with the second push rod in the second push rod motor through the second connecting rod, when the device works, the second push rod motor works to control the second push rod to extend downwards and move linearly, at the moment, the second push rod can drive the second connecting rod to move forwards (namely move towards a user), the second connecting rod can drive the second rotary supporting structure to move towards the user, and the second rotary supporting structure will drive the second main smoke barrier 332a to rotate in the direction away from the second lower air inlet 32b, thereby opening the second main smoke barrier 332a, and simultaneously the second main smoke barrier 332a drives the second side smoke barrier 334a at both sides to open, when the second main smoke baffle 332a rotates to a preset angle, the second push rod motor stops working, and the oil smoke enters the range hood through the second lower air inlet 32b (cover suction) and is discharged out of the room through the fan 12; when the cigarette box stops working, the second push rod motor controls the second push rod to shorten and move linearly to drive the second connecting rod to contract, the second connecting rod drives the second rotary supporting structure to move back to the direction away from the user, so that the second main cigarette blocking plate 332a is driven to rotate in the direction close to the second lower air inlet 32b, and meanwhile, the second side cigarette blocking plates 334a on the two sides of the second main cigarette blocking plate 332a are folded until the second main cigarette blocking plate 332a returns to the initial state.

Because the second rotary supporting structure can not only drive the second main smoke baffle 332a to rotate, but also can play a role in supporting the second main smoke baffle 332a in the rotating process of the second main smoke baffle 332a and rotate to a preset position, thereby improving the reliability of the rotation of the second main smoke baffle 332 a.

In one embodiment, the range hood further comprises: a fifth support bar and a sixth support bar;

one end of the fifth support rod is connected to the lower body 3 or the upper body 2, the other end of the fifth support rod is hinged (for example, hinged by a bolt) to one end of the sixth support rod, and the side wall of the sixth support rod is connected to the second main smoke barrier 332a (as shown in fig. 12), so as to support the second main smoke barrier 332a at the current rotation position when the second main smoke barrier 332a rotates.

The fifth supporting rod is similar to the first supporting rod 71 in fig. 10-12 and the corresponding embodiment, and therefore, the description thereof is omitted, and the sixth supporting rod is similar to the second supporting rod 72 in fig. 10-12 and the corresponding embodiment, and therefore, the description thereof is omitted.

The second main smoke barrier 332a is supported by the side wall of the sixth support bar, and the side wall of the sixth support bar has a larger area, so that the support is more reliable.

In one embodiment, the second side smoke barrier 334a includes: a second smoke-blocking sector and a plurality of second shafts;

the second smoke blocking sector is in a sector shape after being unfolded;

the second shafts are arranged along the radial direction of the second smoke blocking fan surface.

The second smoke-blocking sector in the second side smoke-blocking plate 334a may be flexible or rigid, and the present disclosure does not limit the second smoke-blocking sector, and the second smoke-blocking sector has a structure similar to that of a folding fan used in daily life and can be folded and unfolded.

The second side smoke barrier 334a has a structure similar to that of the side smoke barrier 33 described in the above-mentioned fig. 13-14 and the corresponding embodiments, the second smoke barrier sector has a structure similar to that of the smoke barrier sector 331 described in the above-mentioned fig. 13-14 and the corresponding embodiments, and the second axis is similar to that of the shaft 332 described in the above-mentioned fig. 13-14 and the corresponding embodiments, and therefore, the description thereof is omitted.

This patent adopts the principle of folding fan or hinge, blocks off the main cigarette board 332a both sides air inlet of second for the air inlet is only from a direction air inlet in the front. When the range hood is opened, the second main smoke barrier 332a is opened, and at the same time, the second side smoke barrier 334a is also opened, so that the cooking fumes generated during cooking only enter the range hood from one direction at the front side, and are discharged to the outside through the fan 12, thereby improving the smoking efficiency.

In one embodiment, the second axes are uniformly distributed in the second smoke-blocking sector.

In one embodiment, a fifth fixing structure and a sixth fixing structure are respectively arranged at two ends of the second smoke blocking fan surface;

the fifth fixed structure is connected with the second main smoke barrier 332 a;

the sixth fixing structure is connected with the lower body 3.

In order to reliably fix the second side smoke baffle 334a and the range hood, a fifth fixing structure and a sixth fixing structure are respectively arranged at two ends of the second smoke baffle sector, and the fifth fixing structure is connected with the second main smoke baffle 332 a; the sixth fixing structure is connected with the lower body 3.

In one implementation, in order to avoid the influence of the second side smoke baffle 334a on the overall aesthetic effect of the range hood after being folded, the panel between the two second shafts is folded toward the side close to the second lower air inlet 32b, so that when the second main smoke baffle 332a is closed, the folded side smoke baffle 33 is located below the second main smoke baffle 332a and is covered by the second main smoke baffle 332a, so that the second side smoke baffle 334a is not exposed outside, the aesthetic effect of the overall range hood is effectively improved, and the problem that the second smoke baffle sector surface of the exposed side smoke baffle 33 is damaged can be avoided as the side smoke baffle 33 is received below the second main smoke baffle 332 a.

The first main smoke barrier 331a and the second main smoke barrier 332a may be controlled by two different rotating motors, respectively, or may be controlled by the same rotating motor, which is not limited in this disclosure.

In an implementation manner, the above-mentioned rotation state of the first main smoke barrier 331a can also be realized by the first rotating motor 331b, in this case, the first rotating motor 331b is connected with the first main smoke barrier 331 a; for controlling the rotation of the first main smoke barrier 331a, and the electric control box 13 is electrically connected to the first rotating motor 331b for controlling the operating state of the first rotating motor 331 b.

The above-mentioned rotation state of the second main smoke barrier 332a can also be realized by the first rotating motor 331b, and at this time, the first rotating motor 331b is connected to the second main smoke barrier 332 a; for controlling the rotation of the second main smoke barrier 332a, and the electric control box 13 is electrically connected to the first rotating motor 331b for controlling the operating state of the first rotating motor 331 b.

In another implementation manner, the first main smoke barrier 331a and the second main smoke barrier 332a may be respectively provided with a rotating motor, for example: the first main smoke barrier 331a corresponds to a first rotating motor 331b, and the second main smoke barrier 332a corresponds to a second rotating motor 332 b.

At this time, as shown in fig. 33 and 34, the first rotating motor 331b is connected to the first main smoke barrier 331 a; the electric control box 13 is electrically connected with the first rotating motor 331b and is used for controlling the working state of the first rotating motor 331 b; the second rotating motor 332b is connected to the second main smoke barrier 332 a; used for controlling the rotation of the second main smoke baffle 332a, and the electric control box 13 is electrically connected with the second rotating motor 332b and used for controlling the working state of the second rotating motor 332b

The working principle of the first rotating motor 331b and the second rotating motor 332b is similar to that in the related art, the connection mode between the first rotating motor 331b and the first main smoke barrier 331a, and the connection mode between the second rotating motor 332b and the second main smoke barrier 332a are also similar to that in the related art, and are not repeated herein.

The operation of the range hood of the present disclosure will be described in detail below with several embodiments.

Fig. 36 is a schematic structural view illustrating the first main smoke barrier and the second main smoke barrier of the novel range hood according to an exemplary embodiment when both are closed, and fig. 37 is a schematic structural view illustrating the first main smoke barrier of the novel range hood according to an exemplary embodiment when the first main smoke barrier is closed and the second main smoke barrier is opened; fig. 38 is a schematic structural view illustrating the first main smoke barrier being opened and the second main smoke barrier being closed in the new range hood according to an exemplary embodiment.

The range hood products on the market are generally of an upper fan 12 and a lower smoking structure, wherein the range hood products are divided into a top suction type and a near suction type. For the top-suction type range hood, a user can generate a large amount of oil smoke during quick frying, the suction effect of the top-suction type range hood is better than that of a near-suction type range hood, but the oil smoke is easy to contact with a human face, the generated oil smoke is smaller when the user carries out ordinary frying, and the suction effect on a small amount of oil smoke is not ideal as the suction structure of the top-suction type range hood is far away from a gas stove; to nearly inhaling formula smoke ventilator, the oil smoke that the user produced when ordinary stir-fry can be smaller, and the oil smoke machine can be inhaled and discharged cleanly, but when stir-fry, can produce a large amount of oil smoke, will have a lot of oil smoke to escape outward this moment, and smoke exhaust effect is not obvious. To address this problem, the present disclosure provides a range hood having multiple air inlets.

Specifically, the third support bar is installed at two sides of the host housing 11 opposite to the first main smoke barrier 331a, and is used for connecting and supporting the first main smoke barrier 331 a; the first push rod motor can be arranged on the upper main machine shell 11, and when the first push rod motor works, the first push rod motor controls the first push rod to do telescopic linear motion; the first lower air inlet 31b is provided with a first main smoke baffle 331a and first side smoke baffles 333a positioned at two sides of the first main smoke baffle 331a, a first side surface of the first main smoke baffle 331a is arranged at the upper part of the first lower air inlet 31b through a first rotating shaft, the first main smoke baffle 331a can rotate around the first rotating shaft, and the maximum rotating angle is 45 degrees when the first main smoke baffle 331a is opened; the first main smoke baffle 331a is provided with a fourth support rod, and is connected with the third support rod through the fourth support rod; the first main smoke baffle 331a is provided with a first rotary supporting structure, and the first rotary supporting structure is connected with a movable end of a first push rod in a first push rod motor through a first connecting rod; first side smoke baffles 333a are arranged at the left side and the right side of the first main smoke baffle 331a, one end of each first side smoke baffle 333a is arranged on the machine shell of the lower machine body 3, the other end of each first side smoke baffle is arranged on the first main smoke baffle 331a, and when the first main smoke baffle 331a is closed, the first side smoke baffles 333a are folded towards the direction close to the first main smoke baffle 331 a; when the first main smoke barrier 331a is opened, the first lower air inlet 31b is in a cover suction form; when the first main smoke barrier 331a is closed, the first lower air inlet 31b is in a suction form; when the range hood is in a shutdown state, the first push rod motor controls the first push rod to return (initial position), and the first side smoke baffle 333a is in a folded state; when the range hood is started, the first push rod motor works, the first push rod extends and moves linearly to drive the first connecting rod to move forwards, the first connecting rod drives the first main smoke baffle 331a to rotate through the first rotating support structure, meanwhile, the first side smoke baffle 333a is opened, and the range hood stops when the first main smoke baffle 331a rotates 45 degrees; when the range hood is closed, the first push rod motor moves, the first push rod is shortened and moves linearly, the first connecting rod is driven to be contracted, the first main smoke baffle 331a starts to rotate, and meanwhile, the first side smoke baffle 333a is folded until the first main smoke baffle 331a returns to the initial state.

The fifth supporting rod is installed at both sides of the second main smoke barrier 332a in the host housing 11 for connecting and supporting the second main smoke barrier 332 a; the second push rod motor can be arranged on the upper host shell 11, and controls the second push rod to do telescopic linear motion when the second push rod motor works; the second lower air inlet 32b is provided with a second main smoke baffle plate 332a and second side smoke baffle plates 334a positioned at two sides of the second main smoke baffle plate 332a, the second side surface of the second main smoke baffle plate 332a is arranged at the upper part of the second lower air inlet 32b through a second rotating shaft, the second main smoke baffle plate 332a can rotate around the second rotating shaft, and the maximum rotating angle is 45 degrees when the second main smoke baffle plate 332a is opened; a sixth supporting rod is arranged on the second main smoke baffle plate 332a and is connected with the fifth supporting rod through the sixth supporting rod; a second rotary supporting structure is arranged on the second main smoke baffle 332a and is connected with the movable end of a second push rod in a second push rod motor through a second connecting rod; the second main smoke barrier 332a is provided with second side smoke barriers 334a on the left and right sides, one end of each second side smoke barrier 334a is arranged on the shell of the lower body 3, the other end of each second side smoke barrier 334a is arranged on the second main smoke barrier 332a, and when the second main smoke barrier 332a is closed, the second side smoke barriers 334a are folded towards the direction close to the second main smoke barrier 332 a; when the second main smoke barrier 332a is opened, the second lower air inlet 32b is in a cover suction type; when the second main smoke baffle 332a is closed, the second lower air inlet 32b is in a suction form; when the range hood is in a shutdown state, the second push rod motor controls the second push rod to return (initial position), and the second side smoke baffle 334a is in a folding state; when the range hood is started, the second push rod motor works, the second push rod extends and moves linearly to drive the second connecting rod to move forwards, the second connecting rod drives the second main smoke baffle 332a to rotate through the second rotating support structure, meanwhile, the second side smoke baffle 334a is opened, and the range hood stops when the second main smoke baffle 332a rotates by 45 degrees; when the range hood is closed, the second push rod motor moves, the second push rod is shortened and moves linearly, the second connecting rod is driven to contract, the second main smoke baffle plate 332a starts to rotate, and meanwhile, the second side smoke baffle plate 334a is folded until the second main smoke baffle plate 332a returns to the initial state.

According to the range hood disclosed by the disclosure, a user can select the first lower air inlet 31b to work or the second lower air inlet 32b to work according to actual needs.

When the user selects the first lower air inlet 31b to operate, the first lower air inlet 31b may set two operation modes, which are a normal cooking mode and a stir-frying mode, respectively, in the normal cooking mode, the first main smoke barrier 331a is closed, but since the first lower air inlet 31b is still partially exposed outside the first main smoke barrier 331a, the oil smoke mainly enters the interior of the range hood from the first lower air inlet 31b (corresponding to a near-suction mode), and at this time, a part of the oil smoke may enter the interior of the range hood through the upper air inlet 21 and then is discharged to the outside through the fan 12. In a stir-frying mode, the first main smoke baffle 331a is opened, oil smoke mainly enters the interior of the range hood through the first lower air inlet 31b (equivalent to a cover suction mode), at this time, part of the oil smoke can also enter the interior of the range hood through the upper air inlet 21 and is discharged out of the room through the fan 12, specifically, the first push rod motor works, the first push rod extends and moves linearly to drive the connecting rod 5 to move forwards, the first connecting rod drives the first rotary supporting structure to rotate to drive the first main smoke baffle 331a to rotate, meanwhile, the first side smoke baffle 333a is opened, when the first main smoke baffle 331a rotates 45 degrees, the oil smoke stops, enters the range hood through the first lower air inlet 31b and is discharged out of the room through the fan 12; after the user closes the range hood, the first push rod motor moves, the first push rod shortens and moves linearly, the first link is driven to contract, the first link drives the first rotary supporting structure to rotate so as to drive the first main smoke baffle 331a to start rotating, and meanwhile, the first side smoke baffle 333a is folded until the first main smoke baffle 331a returns to the initial state.

When the user selects the second lower air inlet 32b to work, the second lower air inlet 32b can also set two working modes, namely a normal cooking mode and a quick-frying mode, when the second lower air inlet 32b works, the second main smoke baffle 332a is closed in the normal cooking mode, but because the second lower air inlet 32b is still partially exposed outside the second main smoke baffle 332a, oil smoke mainly enters the interior of the range hood from the second lower air inlet 32b (equivalent to a near-suction mode), at this time, part of the oil smoke can also enter the interior of the range hood through the upper air inlet 21 and then is discharged out of the room through the fan 12; in a stir-frying mode, the second main smoke baffle 332a is opened, oil smoke mainly enters the interior of the range hood through the second lower air inlet 32b (equivalent to a cover suction mode), at the moment, part of the oil smoke can also enter the interior of the range hood through the upper air inlet 21 and is discharged out of the room through the fan 12, specifically, the second push rod motor works, the second push rod extends and moves linearly to drive the connecting rod 5 to move forwards, the second connecting rod drives the second rotary supporting structure to rotate so as to drive the second main smoke baffle 332a to rotate, meanwhile, the second side smoke baffle 334a is opened, when the second main smoke baffle 332a rotates 45 degrees, the oil smoke stops, enters the range hood through the second lower air inlet 32b and is discharged out of the room through the fan 12; after the user closes the range hood, the second push rod motor moves, the second push rod shortens and is linear motion, the second connecting rod is driven to contract, the second connecting rod drives the second rotary supporting structure to rotate so as to drive the second main smoke baffle 332a to start rotating, and meanwhile, the second side smoke baffle 334a is folded until the second main smoke baffle 332a returns to the initial state.

When the user selects the first lower air inlet 31b and the second lower air inlet 32b at the same time, four working modes can be set at this time, which are a normal cooking mode, a quick-frying mode, a normal cooking mode of the first lower air inlet 31b and a quick-frying mode of the second lower air inlet 32b, a quick-frying mode of the first lower air inlet 31b and a normal cooking mode of the second lower air inlet 32 b. In the normal cooking mode, the first main smoke barrier 331a and the second main smoke barrier 332a are closed, but since the first lower air inlet 31b and the second lower air inlet 32b are still partially exposed outside the first main smoke barrier 331a and the second main smoke barrier 332a, the oil smoke mainly enters the interior of the range hood from the first lower air inlet 31b and the second lower air inlet 32b (corresponding to a near-suction manner), and at this time, part of the oil smoke may enter the interior of the range hood through the upper air inlet 21 and then be discharged to the outside through the fan 12. In the stir-fry mode, the first main smoke baffle 331a and the second main smoke baffle 332a are both open, the oil smoke enters the interior of the range hood mainly through the first lower air inlet 31b and the second lower air inlet 32b (corresponding to the cover suction mode), at this time, part of the oil smoke can also enter the interior of the range hood through the upper air inlet 21 and is exhausted out of the room through the fan 12, specifically, the first push rod motor works, the first push rod extends and moves linearly to drive the connecting rod 5 to move forward, the first connecting rod drives the first rotary supporting structure to rotate to drive the first main smoke baffle 331a to rotate, meanwhile, the first side smoke baffle 333a is open, when the first main smoke baffle 331a rotates 45 degrees, the second push rod motor works, the second push rod extends and moves linearly to drive the connecting rod 5 to move forward, the second connecting rod drives the second rotary supporting structure to rotate to drive the second main smoke baffle 332a to rotate, meanwhile, the second side smoke baffle 334a is opened, and when the second main smoke baffle 332a rotates by 45 degrees, the oil smoke enters the range hood through the first lower air inlet 31b and the second lower air inlet 32b and is discharged out of the room through the fan 12; after the user closes the range hood, the first push rod motor moves, the first push rod shortens and is linear motion, the first connecting rod is driven to contract, the first connecting rod drives the first rotary supporting structure to rotate so as to drive the first main smoke baffle 331a to start rotating, meanwhile, the first side smoke baffle 333a is folded until the first main smoke baffle 331a returns to the initial state, the second push rod motor moves, the second push rod shortens and is linear motion, the second connecting rod contracts, the second connecting rod drives the second rotary supporting structure to rotate so as to drive the second main smoke baffle 332a to start rotating, and meanwhile, the second side smoke baffle 334a is folded until the second main smoke baffle 332a returns to the initial state.

When the first lower air inlet 31b is selected to be in the ordinary cooking mode and the second lower air inlet 32b is selected to be in the quick-frying mode, the first main smoke baffle 331a is closed, the second main smoke baffle 332a is opened, the oil smoke enters the interior of the range hood through the first lower air inlet 31b (equivalent to a near-suction mode) and the second lower air inlet 32b (equivalent to a cover-suction mode), at the moment, part of the oil smoke can also enter the interior of the range hood through the upper air inlet 21 and is exhausted out of the room through the fan 12, specifically, the second push rod motor works, the second push rod extends and moves linearly to drive the connecting rod 5 to move forwards, the second connecting rod drives the second rotary supporting structure to rotate to drive the second main smoke baffle 332a to rotate, the second side smoke baffle 334a is opened at the same time, the second main smoke baffle 332a stops when rotating by 45 degrees, the oil smoke enters the range hood through the second lower air inlet 32b, discharged to the outside through the fan 12; after the user closes the range hood, the second push rod motor moves, the second push rod shortens and is linear motion, the second connecting rod is driven to contract, the second connecting rod drives the second rotary supporting structure to rotate so as to drive the second main smoke baffle 332a to start rotating, and meanwhile, the second side smoke baffle 334a is folded until the second main smoke baffle 332a returns to the initial state.

When the first lower air inlet 31b stir-frying mode and the second lower air inlet 32b ordinary cooking mode are selected, the first main smoke baffle 331a is opened, the second main smoke baffle 332a is closed, oil smoke enters the interior of the range hood through the first lower air inlet 31b (equivalent to a cover suction mode) and the second lower air inlet 32b (equivalent to a near suction mode), at the same time, part of the oil smoke can also enter the interior of the range hood through the upper air inlet 21 and is exhausted out of the room through the fan 12, specifically, the first push rod motor works, the first push rod extends and linearly moves to drive the connecting rod 5 to move forwards, the first connecting rod drives the first rotation supporting structure to rotate to drive the first main smoke baffle 331a to rotate, meanwhile, the first side smoke baffle 333a is opened, when the first main smoke baffle 331a rotates 45 degrees, the oil smoke stops, and enters the range hood through the first lower air inlet 31b, discharged to the outside through the fan 12; after the user closes the range hood, the first push rod motor moves, the first push rod shortens and moves linearly, the first link is driven to contract, the first link drives the first rotary supporting structure to rotate so as to drive the first main smoke baffle 331a to start rotating, and meanwhile, the first side smoke baffle 333a is folded until the first main smoke baffle 331a returns to the initial state.

It should be noted that the first main smoke barrier 331a and the second main smoke barrier 332a in the present disclosure may be rotated to any angle and fixed at the angle, and the angle of the above-mentioned stir-fry mode may be 45 degrees, for example only, or 30 degrees, etc., and the angle may also be automatically selected according to the preference of the user, which is not limited in the present disclosure.

On the basis of the above-described embodiments corresponding to fig. 33 to 38, as shown in fig. 39, the temperature detectors 3a (the first temperature detector 31a1 and the second temperature detector 32a1, respectively) are respectively provided below the first lower intake vent 31b and below the second lower intake vent 32 b; the temperature detector 3a is electrically connected with the electronic control box 13 and is used for transmitting detection data to the electronic control box 13.

Since heat is generated when a cooking operation is performed under the hood, whether a user starts the cooking operation can be sensed by the first temperature detector 31a1 and the second temperature detector 32a1, and if so, the electric control box 13 controls the hood to start operating.

Specifically, a first preset temperature threshold is preset, and if the electronic control box 13 detects that the temperature data detected by the first temperature detector 31a1 and/or the second temperature detector 32a1 is greater than the first preset temperature threshold, the electronic control box 13 controls the fan 12 to start working.

The kitchen air purification device has two working modes, namely a normal mode and a stir-frying mode, if the electronic control box 13 detects that temperature data detected by the first temperature detector 31a1 and/or the second temperature detector 32a1 is greater than a first preset temperature threshold and less than a second preset temperature threshold, the normal mode is started, at the moment, the main smoke baffle 32 is in a closed state, and the fan 12 starts to work; if the electronic control box 13 detects that the temperature data detected by the first temperature detector 31a1 and/or the second temperature detector 32a1 is greater than the second preset temperature threshold and less than the third preset temperature threshold, the stir-frying mode is started, at this time, the main smoke baffle 32 is opened, and the fan 12 starts to work.

The first temperature preset threshold is smaller than the second temperature preset threshold, the second temperature preset threshold is smaller than the third temperature preset threshold, specific data can be preset, the specific data can also be adjusted in real time based on big data, and the specific data can also be manually set by a user.

It should be noted that a plurality of temperature detectors 3a may be disposed below the first lower intake vent 31b and the second lower intake vent 32b, respectively, and the number and the positions of the temperature detectors 3a are not limited in the present disclosure.

Whether cook the operation based on the detection data that temperature detector 3a obtained is judged, if cook the operation, then open fan 12 automatically and inhale and arrange the work, avoid the user not in time manually open kitchen air purification equipment and the poor problem of kitchen air quality that leads to, effectively promoted user experience. Owing to set up two independent air intakes, set up main cigarette board 32 and side cigarette board 33 that keep off on each air intake respectively to can select the air intake of opening which one side according to actual need, effectively save the power consumption, in addition at the in-process of suction and exhaust oil smoke, can effectively avoid the outside loss of oil smoke, promoted smoke exhaust effect, and further promoted user experience.

As shown in fig. 39, the method further includes: odor detector 2 a.

The peculiar smell detector 2a is arranged in the upper machine body 2;

the peculiar smell detector 2a is electrically connected with the electric control box 13 and is used for transmitting detection data to the electric control box 13.

This peculiar smell detector 2a is arranged in detecting whether there is the peculiar smell in the kitchen to judge whether the kitchen needs the ventilation, and peculiar smell detector 2a sends the detection data that detect to automatically controlled box 13, and automatically controlled box 13 judges whether the kitchen needs the ventilation based on this detection data, if the judgement result is that the kitchen needs the ventilation, automatically controlled box 13 control fan 12 operation, also can control to open main cigarette board 32, in order to reach the purpose that ventilates fast, inhale the peculiar smell of arranging the kitchen fast.

It should be noted that a plurality of odor detectors 2a may be disposed inside the upper body 2, and the number and positions of the odor detectors 2a are not limited by the present disclosure.

In the range hood in this embodiment, whether the first lower air inlet 31b works or the second lower air inlet 32b works can be determined according to data detected by the temperature detector 3a and the odor detector 2 a.

When the first lower air inlet 31b is determined to work according to the data detected by the temperature detector 3a, the first lower air inlet 31b can set two working modes, namely a normal cooking mode and a stir-frying mode.

When the second lower air inlet 32b is determined to work according to the data detected by the temperature detector 3a, two working modes, namely a normal cooking mode and a stir-frying mode, can also be set when the second lower air inlet 32b works.

When it is determined that the first lower air inlet 31b and the second lower air inlet 32b simultaneously operate according to the data detected by the temperature detector 3a, four operation modes may be set at this time, which are a normal cooking mode, a quick-frying mode, a normal cooking mode for the first lower air inlet 31b and a quick-frying mode for the second lower air inlet 32b, a quick-frying mode for the first lower air inlet 31b and a normal cooking mode for the second lower air inlet 32b, respectively.

When it is determined that the first lower intake port 31b and the second lower intake port 32b are simultaneously operated according to the data detected by the odor detector 2a, a ventilation mode may be set.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (28)

1. A novel range hood, which is characterized by comprising:

the host comprises a host shell, a fan arranged in the host shell and an electric control box electrically connected with the fan;

the upper machine body is arranged below the main machine, and an upper air inlet is formed in the bottom of the machine body of the upper machine body;

the lower machine body is provided with a lower air inlet, and a main smoke baffle and a side smoke baffle are arranged on one side of the lower air inlet, which is far away from the lower machine body;

the first side surface of the main smoke baffle is arranged on the upper side of the lower air inlet through a rotating shaft;

the second side surface and the third side surface of the main smoke baffle plate are respectively provided with the side smoke baffle plate, the plate surface of the side smoke baffle plate is of a foldable structure, and the second side surface and the third side surface are two opposite side surfaces in the main smoke baffle plate; the main smoke baffle plate can rotate around the rotating shaft to drive the plate surface of the side smoke baffle plate to fold and unfold.

2. The novel range hood of claim 1, wherein the coverage area of the main smoke baffle is smaller than or equal to the area of the lower air inlet.

3. The novel range hood of claim 1, further comprising: a push rod motor and a connecting rod,

the push rod motor is positioned in the host shell, the movement direction of a push rod in the push rod motor is the gravity direction, and the movable end of the push rod in the push rod motor is connected with one end of the connecting rod;

the other end of the connecting rod is connected with the main smoke baffle;

the electric control box is electrically connected with the push rod motor and used for controlling the working state of the push rod motor.

4. The novel range hood of claim 3, further comprising: a rotating support structure;

one side of the rotary supporting structure is connected with the main smoke baffle plate, and the other side of the rotary supporting structure is connected with the other end of the connecting rod.

5. The novel range hood of claim 4, further comprising: a first support bar and a second support bar;

one end of the first supporting rod is connected with the lower machine body or the upper machine body, the other end of the first supporting rod is hinged to one end of the second supporting rod, and the side wall of the second supporting rod is connected with the main smoke baffle and used for supporting the main smoke baffle to be located at the current rotating position when the main smoke baffle rotates.

6. The novel range hood of claim 1, wherein the side smoke barrier comprises: a smoke blocking sector and a plurality of shafts;

the smoke blocking fan surface is in a fan shape after being unfolded;

the plurality of shafts are arranged along the radial direction of the smoke blocking fan surface.

7. The novel range hood of claim 6, wherein the plurality of shafts are evenly distributed in the smoke blocking sector.

8. The novel range hood according to claim 6, wherein a first fixing structure and a second fixing structure are respectively arranged at two ends of the smoke blocking fan surface;

the first fixing structure is connected with the main smoke baffle plate;

the second fixing structure is connected with the lower machine body.

9. The novel range hood of claim 6, wherein the panel between the two shafts is folded toward a side adjacent to the lower air inlet.

10. The novel range hood of claim 1, further comprising: a rotating electric machine;

the rotary motor is connected with the main smoke baffle and is used for controlling the main smoke baffle to rotate;

the electric control box is electrically connected with the rotating motor and used for controlling the working state of the rotating motor.

11. The novel range hood of claim 1, wherein the rotation angle of the main smoke baffle is less than or equal to 45 degrees.

12. The novel range hood of claim 1, wherein the upper intake opening comprises: the first main air inlet, the second sub air inlet and the third sub air inlet;

the first main air inlet is positioned in the middle of the upper machine body;

the second sub air inlet is positioned at one end, close to the lower machine body, of the upper machine body;

the third sub air inlet is positioned at one end of the upper machine body, which is opposite to the second sub air inlet.

13. The novel range hood of claim 1, further comprising: an oil cup;

the oil cup is positioned at one end of the lower machine body, which is far away from the upper machine body.

14. The novel range hood of claim 1, wherein the lower air inlet covers a user facing side of the lower body.

15. The novel range hood of claim 1, wherein a louver structure is disposed in the upper inlet opening.

16. The new range hood of claim 15, wherein the louver structure comprises: a blade and a rotating structure;

the rotating structure is connected with the blades and is used for controlling the blades to rotate;

the electric control box is electrically connected with the rotating structure and used for controlling the rotating structure to rotate.

17. The new range hood of claim 16, wherein the swivel structure comprises: a gear;

the end part of each blade is fixed with the gear, and the gears corresponding to two adjacent blades are meshed with each other;

the electric control box is electrically connected with the gear and used for controlling the gear to rotate.

18. The new range hood of claim 17 wherein the gear plane of the gear is perpendicular to the leaf plane of the vane.

19. The novel range hood of claim 1, wherein the lower air inlet comprises: the main smoke baffle plate and the side smoke baffle plate are arranged on one sides of the first lower air inlet and the second lower air inlet, which are far away from the lower machine body; the first air inlet and the second air inlet are respectively positioned on the left side and the right side of the lower machine body.

20. The novel range hood of claim 19,

the first side surface of the first main smoke baffle plate is arranged on the upper side of the first lower air inlet through a first rotating shaft;

the second side surface and the third side surface of the first main smoke baffle plate are respectively provided with the first side smoke baffle plate, the plate surface of the first side smoke baffle plate is of a foldable structure, and the second side surface and the third side surface are two opposite side surfaces in the first main smoke baffle plate; the first main smoke baffle plate can rotate around the first rotating shaft so as to drive the plate surface of the first side smoke baffle plate to fold and unfold;

the plate between the two first shafts is folded towards one side close to the first lower air inlet.

21. The novel range hood of claim 20, wherein the first main smoke baffle covers an area less than or equal to the area of the first lower air inlet.

22. The novel range hood of claim 21, further comprising: the first push rod motor, the first connecting rod and the first rotary supporting structure;

the first push rod motor is positioned in the host shell, the movement direction of a push rod in the first push rod motor is the gravity direction, and the movable end of the push rod in the first push rod motor is connected with one end of the first connecting rod;

one side of the first rotary supporting structure is connected with the first main smoke baffle plate;

the other side of the first rotary supporting structure is connected with the other end of the first connecting rod;

the electric control box is electrically connected with the first push rod motor and used for controlling the working state of the first push rod motor.

23. The novel range hood of claim 22, further comprising: a third support bar and a fourth support bar;

one end of the third supporting rod is connected with the lower machine body or the upper machine body, the other end of the third supporting rod is hinged to one end of the fourth supporting rod, the side wall of the second supporting rod is connected with the first main smoke baffle plate, and the first main smoke baffle plate is supported to be located at the current rotating position when rotating.

24. The novel range hood of claim 20, wherein the first side smoke barrier comprises: a first smoke-blocking fan surface and a plurality of first shafts;

the first smoke blocking fan surface is in a fan shape after being unfolded;

the first shafts are arranged along the radial direction of the first smoke blocking fan surface;

the first shafts are uniformly distributed in the first smoke blocking fan surface.

25. The novel range hood of claim 24, wherein a third fixing structure and a fourth fixing structure are respectively arranged at two ends of the first smoke blocking fan surface;

the third fixing structure is connected with the first main smoke baffle plate;

the fourth fixing structure is connected with the lower machine body.

26. The novel range hood of claim 19,

the first side surface of the second main smoke baffle plate is arranged at the upper side of the second lower air inlet through a second rotating shaft,

the second side face and the third side face of the second main smoke baffle plate are respectively provided with the second side smoke baffle plate, the plate surface of the second side smoke baffle plate is of a foldable structure, and the second side face and the third side face are two opposite side faces in the second main smoke baffle plate; the second main smoke baffle plate can rotate around the second rotating shaft to drive the second side smoke baffle plate to be folded and unfolded.

27. The new range hood of any one of claims 1-26, further comprising: a temperature detector;

the temperature detector is arranged below the lower air inlet and electrically connected with the electric control box and used for transmitting detection data to the electric control box.

28. The new range hood of any one of claims 1-26, further comprising:

the peculiar smell detector is arranged inside the upper machine body;

the peculiar smell detector is electrically connected with the electric control box and used for transmitting detection data to the electric control box.

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