CN216307919U - Smoke exhaust ventilator - Google Patents

Abstract

The utility model relates to a range hood, comprising: the air conditioner comprises a shell, an air inlet duct and a fan, wherein the inner cavity of the shell is internally provided with the air inlet duct; an oil cup; the smoke baffle is rotatably connected to the shell; a secondary air inlet communicated with the air inlet duct is arranged at a position adjacent to the first side edge of the smoke baffle plate, the secondary air inlet and the main air inlet are respectively positioned at two sides of the rotation axis, the smoke baffle plate opens the main air inlet and shields the main air inlet under the secondary air inlet in a first state, and at least part of the smoke baffle plate is positioned outside the vertical projection of the shell on the horizontal plane; the smoke baffle plate opens the secondary air inlet in the second state and shields the secondary air inlet, the smoke baffle plate inclines towards one side of the oil cup from top to bottom, and the vertical projection of the second side edge of the smoke baffle plate on the horizontal plane is positioned in the oil cup. The range hood can effectively avoid the problem of oil smoke escape under the cooking working condition with large oil smoke amount, and can reduce the risk that condensed water of the cooking working condition with large water vapor amount drips on a cooking bench.

Description

Smoke exhaust ventilator

Technical Field

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

Background

The range hood is a kitchen appliance for purifying the kitchen environment. The range hood generally includes a fan frame, a smoke collecting hood, and a fan system, wherein the fan system is disposed in the fan frame for providing negative pressure. The fume collecting hood is arranged at the bottom of the fan frame and is provided with an air inlet. Among the current range hood, be provided with the fender cigarette board that can overturn front and back and open and shut usually, wherein, keep off the cigarette board and open the back forward, can increase and hold together the cigarette district, reduced the oil smoke escape.

For example, the chinese patent application with application No. CN201611216640.1 (application publication No. CN106765398A) discloses a novel range hood with an intelligent turnover smoke baffle, which comprises a range hood main body and a turnover smoke baffle assembly, wherein the turnover smoke baffle assembly is positioned at two sides below the range hood main body, the turnable smoke baffle component consists of a smoke baffle plate, a rotating shaft, a motor fixing frame, a synchronous motor, a driving gear component, a rotating shaft mounting seat and a motor control system, wherein the smoke baffle plate is fixedly connected with the rotating shaft, two ends of the rotating shaft are connected on the rotating shaft mounting seat, the rotary shaft mounting base is fixed below the main machine of the range hood, one end of the rotary shaft is meshed with the driving gear assembly, and the driving gear component is connected and fixed with a driving shaft of a synchronous motor, the synchronous motor is fixed on a motor fixing frame, and the motor fixing frame is fixed on a main engine of the range hood. The range hood effectively enlarges the smoke gathering area of the range hood, improves the smoke exhaust capacity of the range hood, can reduce the motor power of the range hood, and saves energy consumption.

However, the novel range hood with the intelligent turnover smoke baffle in the above patent still has certain not enough, and at first, the smoke baffle is generally from inside (with the one side of being connected of casing) to outside decline to set up after opening, under the culinary art condition of frying or frying in shallow oil, the oil droplet of condensing on the smoke baffle is limited, and the risk of dripping on the top of a kitchen range can not be considered, but, under the cooking condition of cooking, the vapor volume of rising is great, and the vapor condenses on the smoke baffle easily, therefore has the risk that the comdenstion water drips on the top of a kitchen range. Especially, to the different circumstances of the left and right sides culinary art condition, if one side carries out the culinary art operation of deep-fry or fry in shallow oil and roast, and the cooking operation is cooked to the opposite side, oil smoke and vapor can be mixed in holding together the mutual diffusion in cigarette district, cause all to have the vapor condensation on the fender cigarette board of left and right sides, increased the risk that the condensate drips the top of a kitchen range. Secondly, in order to guarantee that the smoke baffle can normally turn over, a certain gap is required between the smoke baffle and the machine body, and when the oil smoke generated by a user during cooking is large, the gap has the problem of smoke leakage.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the utility model is to provide a range hood aiming at the current situation of the prior art, which can not only effectively avoid the problem of oil smoke escape under the cooking condition with large oil smoke quantity, but also reduce the risk that condensed water drops on a cooking bench under the cooking condition with large water vapor quantity.

The second technical problem to be solved by the utility model is to provide a range hood capable of reducing the problem of smoke leakage at the gap between the smoke baffle and the casing, aiming at the current situation of the prior art.

The technical solution adopted by the present invention to solve any one of the first technical problem and the second technical problem is as follows: range hood includes:

the air conditioner comprises a shell, an air inlet channel is limited in an inner cavity of the shell, and a main air inlet communicated with the air inlet channel is further formed in the bottom of the shell;

the oil cup is arranged below the bottom of the shell and used for receiving oil dripping from the shell;

the smoke baffle plate is provided with a first side edge and a second side edge which are opposite, and the smoke baffle plate is rotationally connected to the shell by taking the first side edge or a straight line parallel to the first side edge as a rotation axis;

the bottom of casing is in the position of neighbouring the first side of keeping off the cigarette board have with the inferior air intake of air inlet wind channel intercommunication, just inferior air intake with main air intake be located respectively the both sides of axis of rotation, keep off the cigarette board relative the casing rotates the in-process and has first state and second state at least:

in the first state, the smoke baffle plate opens the main air inlet and shields the main air inlet below the secondary air inlet, and at least part of the smoke baffle plate is positioned outside the vertical projection of the shell on the horizontal plane;

in the second state, the smoke baffle plate opens the secondary air inlet and shields the secondary air inlet, the smoke baffle plate faces to one side of the oil cup from top to bottom, and the vertical projection of the second side edge of the smoke baffle plate on the horizontal plane is located in the oil cup.

In order to facilitate connection of the smoke baffle plate, particularly to avoid rapid escape of smoke after the smoke comes out from a gap of the smoke baffle plate, the bottom of the machine shell is locally sunken upwards to form a smoke collection cavity, the main air inlet is formed in the wall of the smoke collection cavity, the bottom of the machine shell is also provided with a flow guide wall which is located in the peripheral area of the smoke collection cavity, and the secondary air inlet is formed in the flow guide wall.

In order to further improve the smoke collecting effect of the flow guide wall, the flow guide wall gradually inclines upwards from the smoke collecting cavity to the outer periphery of the machine shell, and an included angle formed by the flow guide wall and the horizontal plane is A, wherein A is more than 8 degrees and less than 15 degrees.

The main air inlet and the corresponding secondary air inlet are both provided with only one air inlet, which can be suitable for common use scenes, but in order to be matched with cooking cookers of a left cooking range and a right cooking range, thereby meeting the requirements of different cooking working conditions (different oil smoke amounts on the left side and the right side), better, the main air inlet is positioned in the central area of the bottom of the machine shell, and is divided into a first main air inlet positioned on the left side and a second main air inlet positioned on the right side, two smoke baffles are respectively a first smoke baffle and a second smoke baffle, the first smoke baffle and the second smoke baffle are respectively arranged at the left side and the right side of the bottom of the machine shell, and respectively correspond to the first main air inlet and the second main air inlet, two secondary air inlets are provided, which are respectively a first secondary air inlet and a second secondary air inlet, the first primary air inlet is located on the left side of the first main air inlet, and the second primary air inlet is located on the right side of the second main air inlet.

In order to further improve the cigarette gathering effect of the cigarette blocking plate in the opening state, when the first cigarette blocking plate is in the first state, the first cigarette blocking plate inclines downwards from right to left and forms a first included angle with the horizontal plane as alpha, and when the second cigarette blocking plate is in the first state, the second cigarette blocking plate inclines downwards from left to right and forms a second included angle with the horizontal plane as beta, wherein alpha is more than 22 degrees and less than 53 degrees, and beta is more than 22 degrees and less than 53 degrees.

In order to further improve the suction at the secondary air inlet and improve the oil smoke absorption effect, the fan further comprises an auxiliary fan arranged in the inner cavity of the shell, and the inlet of the auxiliary fan is opposite to the secondary air inlet.

In order to adapt to different cooking conditions of the left side and the right side, the cooking device further comprises a first auxiliary fan arranged on the left side of the inner cavity of the shell and a second auxiliary fan arranged on the right side of the inner cavity of the shell, wherein the inlet of the first auxiliary fan is opposite to the primary air inlet, and the inlet of the second auxiliary fan is opposite to the secondary air inlet.

When cooking operation with large oil smoke amount is carried out on the left side and the right side, the first smoke baffle plate and the second smoke baffle plate are opened, so that the first main air inlet and the second main air inlet are opened, and the first auxiliary fan and the second auxiliary fan do not work;

when cooking operation with large steam quantity is carried out on the left side and the right side, the first smoke baffle plate and the second smoke baffle plate are closed, so that the primary air inlet warehouse and the secondary air inlet are opened, and the first auxiliary fan and the second auxiliary fan do not work;

when cooking operation with large oil smoke amount is carried out on one side (such as the left side) of the left side and cooking operation with large water vapor amount is carried out on the other side (namely the right side), the first smoke baffle plate on the left side is opened, the second smoke baffle plate on the right side is closed, the first auxiliary fan on the left side does not work, the first auxiliary fan on the right side does not work, and water vapor is prevented from diffusing to the left side and condensing on the first smoke baffle plate on the left side;

when cooking operation with large amount of oil smoke is carried out on one side (such as the left side) of the left side and the right side (such as the right side) and the cooking operation is not carried out on the other side (such as the right side), the first smoke baffle plate on the left side is opened, the second smoke baffle plate on the right side is closed, the first auxiliary fan on the left side and the first auxiliary fan on the right side do not work, if the amount of the oil smoke on the left side is large and the suction force at the first secondary air inlet is not enough to effectively suck and discharge the oil smoke coming out from the gap of the first smoke baffle plate, the first auxiliary fan can be started to increase the suction force;

when one of them side (like the left side) of left and right sides carries out the culinary art operation that vapor volume is big and the opposite side (right side promptly) does not carry out the culinary art operation, the left first cigarette board that keeps off and the second on right side keep off the cigarette board and all close, and left first auxiliary air fan starts, and the first auxiliary air fan on right side is out of work to increase the suction of the first time air intake department in left side, avoid vapor to the right side diffusion.

In order to be matched with the first smoke baffle and the second smoke baffle, the oil (including condensed water) on the first smoke baffle and the second smoke baffle can smoothly flow into the oil cup, the whole oil cup is in a long strip shape, and the oil cup is arranged between the first main air inlet and the second main air inlet along the front-back direction of the shell.

Compared with the prior art, the utility model has the advantages that: the range hood disclosed by the utility model can be adapted to various cooking working conditions, and under the condition of cooking with larger oil smoke amount such as frying or roasting, the smoke baffle plate can be turned over and opened to be in a first state, and under the first state, oil smoke is sucked and discharged mainly through the main air inlet, wherein at least part of the smoke baffle plate is positioned outside the vertical projection of the shell on the horizontal plane, so that a smoke collecting area is enlarged, and the oil smoke escape is reduced. Under carrying out like the great culinary art condition of this kind of vapor volume of cooking, can be with keeping off the inside upset closure of cigarette board and making it be in the second state, under this second state, mainly carry out suction drainage vapor through this time air intake, wherein, keep off the vertical projection of second side on the horizontal plane of cigarette board and be located the oil cup, from this, the comdenstion water of condensing on the outer wall surface that keeps off the cigarette board can keep off the cigarette board and flow to the oil cup in self action of gravity, has reduced its risk of dripping on the top of a kitchen range. In addition, the arrangement of the secondary air inlet can timely suck the oil smoke escaping from the gap at the joint position of the smoke baffle and the shell into the air inlet duct, so that the oil smoke is prevented from continuously escaping to the outside of the oil smoke suction machine to influence the kitchen environment. On the other hand, compared with the mode of blocking oil smoke at the gap, the mode supplements the intake air flow rate, and achieves the purpose of further improving the smoking effect.

Drawings

Fig. 1 is a schematic perspective view of a range hood according to an embodiment of the present invention (the first smoke baffle and the second smoke baffle are both in a second state);

fig. 2 is a schematic perspective view of a range hood according to an embodiment of the present invention (the first smoke barrier is in the second state, and the second smoke barrier is in the first state);

fig. 3 is a schematic perspective view of a range hood according to an embodiment of the present invention (the first smoke barrier and the second smoke barrier are both in a first state);

FIG. 4 is a schematic perspective view of the structure of FIG. 3 at another angle;

FIG. 5 is a vertical cross-sectional view of FIG. 1 taken in a left-right direction;

FIG. 6 is a vertical cross-sectional view of FIG. 2 taken in a left-right direction;

fig. 7 is a vertical sectional view of fig. 3 taken in the left-right direction.

Detailed Description

The utility model is described in further detail below with reference to the accompanying examples.

Directional terms such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like are used in the description and claims of the present invention to describe various example structural portions and elements of the utility model, but are used herein for convenience of description only and are to be determined based on the example orientations shown in the drawings. Because the disclosed embodiments of the present invention may be oriented in different directions, the directional terms are used for descriptive purposes and are not to be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or coincident with the direction of gravity.

Referring to fig. 1-7, a range hood includes a housing 10, a fan system, and smoke baffles 20a,20 b. The casing 10 includes a fan frame 11 and a smoke collecting hood 12, the smoke collecting hood 12 is disposed at the bottom of the fan frame 11, and main air inlets 13a and 13b are opened at the bottom of the smoke collecting hood 12. The fan system is arranged in the fan frame 11 and used for providing negative pressure for sucking and exhausting oil smoke.

Referring to fig. 4, the hood 12 has a left-right width dimension greater than that of the fan frame 11, whereby the hood 12 has shoulders 122a,122b projecting outward relative to the fan frame 11, specifically including a first shoulder 122a on the left side and a second shoulder 122b on the right side. The intake air duct 110 is defined inside the fan frame 11, and the first shoulder portion 122a and the second shoulder portion 122b of the smoke collecting hood 12 each define therein an auxiliary air duct 15 communicating with the intake air duct 110. The main air inlets 13a,13b at the bottom of the smoke collecting hood 12 are opposite to the air inlet duct 110 and are communicated with the air inlet duct 110.

Referring to fig. 3, the central portion of the bottom of the smoke collecting hood 12 of the present embodiment is recessed upward to form a smoke collecting chamber 120, wherein the main air inlets 13a and 13b are disposed on the wall of the smoke collecting chamber 120, and are specifically divided into a first main air inlet 13a located on the left side and a second main air inlet 13b located on the right side, and the first main air inlet 13a and the second main air inlet 13b are arranged side by side in the left-right direction. The bottom of the fume collecting hood 12 is further connected with an oil cup 40, the oil cup 40 is integrally long-strip-shaped, and is arranged along the front-back direction of the fume collecting hood 12 and specifically located between the first main air inlet 13a and the second main air inlet 13 b.

The bottom of the fume collecting hood 12 also has a peripheral region in the fume collecting chamber 120, which is substantially flat and serves as a guide wall 121. Wherein, the flow guide wall 121 on the left side of the smoke collection cavity 120 inclines upwards from right to left, and the flow guide wall 121 on the right side of the smoke collection cavity 120 inclines upwards from left to right. Specifically, the angle formed by the flow guide wall 121 and the horizontal plane is A, wherein A is more than 8 degrees and less than 15 degrees. Preferably, a is 10 °, see fig. 7 in detail.

The oil smoke coming out from the gap between the smoke barriers 20a and 20b (described below) can continuously climb along the wall of the guide wall 121 to avoid the oil smoke from rapidly diffusing and escaping, thereby ensuring that the oil smoke coming out from the gap between the smoke barriers 20a and 20b enters the secondary air inlets 14a and 14b as much as possible.

Referring to fig. 1-3, there are two smoke barriers 20a,20b, namely a first smoke barrier 20a and a second smoke barrier 20b, each of the first smoke barrier 20a and the second smoke barrier 20b having opposite first and second sides 21, 22. The first baffle 20a is rotatably connected with the first side 21 or a line parallel thereto as a rotation axis under the bottom of the first shoulder 122a of the smoke collecting hood 12, and similarly, the second baffle 20b is also rotatably connected with the first side 21 or a line parallel thereto as a rotation axis under the bottom of the second shoulder 122b of the smoke collecting hood 12. Wherein the rotation axis of the first smoke barrier 20a and the rotation axis of the second smoke barrier 20b are both arranged to extend substantially forward and backward.

Referring to fig. 7, in order to realize the flexible turning of the smoke baffles 20a and 20b, a gap m exists between the first side 21 of the smoke baffles 20a and 20b and the bottom wall of the smoke collecting hood 12, and when the amount of smoke is large, the problem of smoke leakage from the gap m is likely to occur, for this reason, the bottom of the smoke collecting hood 12 of this embodiment is further provided with two secondary air inlets 14a and 14b, the two secondary air inlets 14a and 14b are respectively a first secondary air inlet 14a and a second secondary air inlet 14b, the first secondary air inlet 14a is provided on the guide wall 121 on the left side, that is, on the left side of the first main air inlet 13a, and the second secondary air inlet 14b is provided on the guide wall 121 on the right side, that is, on the right side of the second main air inlet 13 b.

The first sub air inlet 14a is disposed adjacent to the first side 21 of the first smoke barrier 20a, and the first sub air inlet 14a and the first main air inlet 13a are respectively located at two sides of the rotation axis. The second secondary air inlet 14b is disposed adjacent to the first side 21 of the second smoke baffle 20b, and the second secondary air inlet 14b and the second primary air inlet 13b are respectively located at two sides of the rotation axis corresponding thereto.

The smoke baffles 20a,20b (the first smoke baffle 20a and the second smoke baffle 20b) have a first state and a second state during inversion relative to the smoke collecting hood 12. Taking the turning action of the first smoke baffle 20a as an example, in the first state, the first smoke baffle 20a opens the first main air inlet 13a and shields the first main air inlet 14a, and in this state, the second side 22 of the first smoke baffle 20a is partially located outside the vertical projection of the smoke collecting hood 12 on the horizontal plane, so that the smoke collecting area of the range hood on the left and right sides is increased, the smoke leakage problem is reduced, and details are shown in fig. 7. In the second state, the first smoke barrier 20a opens the first secondary air inlet 14a and shields the first primary air inlet 13a, the first smoke barrier 20a inclines from top to bottom toward the side where the oil cup 40 is located, and the vertical projection of the second side 22 of the first smoke barrier 20a on the horizontal plane is located in the oil cup 40, and in the second state, the water vapor is mainly sucked and discharged through the secondary air inlets 14a,14b, wherein, because the vertical projection of the second side 22 of the smoke barriers 20a,20b on the horizontal plane is located in the oil cup 40, the condensed water condensed on the outer wall surfaces of the smoke barriers 20a,20b can flow into the oil cup 40 under the action of self gravity, so that the risk that the condensed water drips onto the cooking bench is reduced, as shown in detail in fig. 5. The turning process of the second cigarette blocking plate 20b is basically the same as the turning process of the first cigarette blocking plate 20a, and the description is omitted.

Referring to fig. 7, in the opened state of the first smoke barrier 20a, the first smoke barrier 20a is inclined downward from right to left and forms a first angle with the horizontal plane as α, and in the opened state of the second smoke barrier 20b, the second smoke barrier 20b is inclined downward from left to right and forms a second angle with the horizontal plane as β, wherein 22 ° < α < 53 °, 22 ° < β < 53 °, preferably α is 50 °, and β is 50 °.

The first side 21 of the first smoke baffle 20a of the present embodiment is rotatably connected to the flow guide wall 121 located on the left side of the smoke collection chamber 120, and the first side 21 of the second smoke baffle 20b is rotatably connected to the flow guide wall 121 located on the right side of the smoke collection chamber 120. The first smoke barrier 20a and the second smoke barrier 20b can independently rotate, and can be driven by various turnover driving mechanisms in the prior art, such as a turnover driving mechanism with a motor and a link mechanism.

Referring to fig. 7, the auxiliary fans 30a and 30b are respectively disposed in the auxiliary air ducts 15 of the first shoulder 122a and the second shoulder 122b of the smoke collecting hood 12, namely, a first auxiliary fan 30a located in the first shoulder 122a and a second auxiliary fan 30b located in the second shoulder 122b, wherein an inlet of the first auxiliary fan 30a is directly opposite to the first secondary air inlet 14a, and an inlet of the second auxiliary fan 30b is directly opposite to the second secondary air inlet 14b, so that suction at the corresponding secondary air inlets 14a and 14b is increased, and the smoke leakage problem is further reduced.

Claims (8)

1. Range hood includes:

the air conditioner comprises a shell (10), an air inlet duct (110) is defined in an inner cavity of the shell (10), and main air inlets (13a,13b) communicated with the air inlet duct (110) are further formed in the bottom of the shell (10);

an oil cup (40) disposed below the bottom of the casing (10) for receiving oil dripping from the casing (10);

the smoke baffle plates (20a,20b) are provided with a first side edge (21) and a second side edge (22) which are opposite, and the smoke baffle plates (20a,20b) are rotationally connected to the machine shell (10) by taking the first side edge (21) or a straight line parallel to the first side edge as a rotation axis;

the method is characterized in that: the bottom of the machine shell (10) is provided with secondary air inlets (14a,14b) communicated with the air inlet duct (110) at the position close to the first side edge (21) of the smoke baffle plates (20a,20b), the secondary air inlets (14a,14b) and the main air inlets (13a,13b) are respectively positioned at two sides of the rotation axis, and the smoke baffle plates (20a,20b) at least have a first state and a second state in the rotation process relative to the machine shell (10):

in the first state, the smoke baffle plate (20a,20b) opens the main air inlet (13a,13b) and shields the smoke baffle plate from the secondary air inlet (14a,14b), and at least part of the smoke baffle plate (20a,20b) is positioned outside the vertical projection of the machine shell (10) on the horizontal plane;

under the second state, the smoke baffle plate (20a,20b) opens the secondary air inlet (14a,14b) and shields the secondary air inlet (13a,13b), the smoke baffle plate (20a,20b) inclines towards one side where the oil cup (40) is located from top to bottom, and the vertical projection of the second side edge (22) of the smoke baffle plate (20a,20b) on the horizontal plane is located in the oil cup (40).

2. The range hood of claim 1, wherein: the bottom of casing (10) is local upwards sunken to form smoke collecting cavity (120), main air intake (13a,13b) are located on the wall of smoke collecting cavity (120), the bottom of casing (10) still has and is located the periphery region in smoke collecting cavity (120) is as water conservancy diversion wall (121), inferior air intake (14a,14b) locate water conservancy diversion wall (121) on.

3. The range hood of claim 2, wherein: the flow guide wall (121) gradually inclines upwards from the smoke collection cavity (120) to the outer periphery of the machine shell (10), an included angle formed by the flow guide wall (121) and the horizontal plane is A, and A is more than 8 degrees and less than 15 degrees.

4. The range hood according to any one of claims 1 to 3, wherein: the main air inlets (13a,13b) are positioned in the central area of the bottom of the machine shell (10) and are divided into a first main air inlet (13a) positioned on the left side and a second main air inlet (13b) positioned on the right side, two smoke baffles (20a,20b) are respectively a first smoke baffle (20a) and a second smoke baffle (20b), the first smoke baffle (20a) and the second smoke baffle (20b) are respectively arranged at the left side and the right side of the bottom of the machine shell (10), and respectively correspond to the first main air inlet (13a) and the second main air inlet (13b), the number of the secondary air inlets (14a,14b) is two, namely a first secondary air inlet (14a) and a second secondary air inlet (14b), the first secondary air inlet (14a) is positioned at the left side of the first main air inlet (13a), the second secondary air inlet (14b) is positioned at the right side of the second main air inlet (13 b).

5. The range hood of claim 4, wherein: when the first smoke baffle (20a) is in the first state, the first smoke baffle (20a) inclines downwards from right to left, a first included angle formed by the first smoke baffle (20a) and the horizontal plane is marked as alpha, when the second smoke baffle (20b) is in the first state, the second smoke baffle (20b) inclines downwards from left to right, a second included angle formed by the second smoke baffle (20b) and the horizontal plane is marked as beta, wherein alpha is larger than 22 degrees and smaller than 53 degrees, and beta is larger than 22 degrees and smaller than 53 degrees.

6. A range hood according to any one of claims 1 to 3, wherein: the air conditioner further comprises auxiliary fans (30a,30b) arranged in the inner cavity of the machine shell (10), and inlets of the auxiliary fans (30a,30b) are arranged opposite to the secondary air inlets (14a,14 b).

7. The range hood of claim 4, wherein: the fan is characterized by further comprising a first auxiliary fan (30a) arranged on the left side of the inner cavity of the machine shell (10) and a second auxiliary fan (30b) arranged on the right side of the inner cavity of the machine shell (10), wherein the inlet of the first auxiliary fan (30a) is opposite to the first secondary air inlet (14a), and the inlet of the second auxiliary fan (30b) is opposite to the second secondary air inlet (14 b).

8. The range hood of claim 4, wherein: the oil cup (40) is integrally long and is arranged between the first main air inlet (13a) and the second main air inlet (13b) along the front-back direction of the machine shell (10).

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