CN219828934U - Fume exhaust fan - Google Patents

Abstract

The utility model belongs to the technical field of household appliances, and aims to solve the problem that a range hood is poor in fume suction effect and further influences the using effect. The utility model provides a range hood, which comprises a box body and a fume collecting hood, wherein the box body is provided with a containing cavity, the fume collecting hood is connected below the box body, the top of the fume collecting hood is provided with an opening, the fume collecting hood is divided into a first fume collecting cavity and a plurality of second fume collecting cavities, the first fume collecting cavity is provided with a first fume collecting port, the opening and an air inlet of the containing cavity are sequentially communicated, the second fume collecting cavity is provided with a second fume collecting port, the opening and the air inlet of the containing cavity are sequentially communicated, and the plurality of second fume collecting cavities are positioned on two opposite sides of the first fume collecting cavity along the horizontal direction. The utility model can realize zero escape of oil smoke.

Description

Fume exhaust fan

Technical Field

The utility model belongs to the technical field of household appliances, and particularly relates to a range hood.

Background

Along with the improvement of living standard, the use demands of people on various household appliances are also higher and higher, wherein the range hood is a kitchen appliance for purifying kitchen environment. Now users are increasingly pursuing quality of life, are particularly sensitive to kitchen fumes, especially fume run-out, which not only gets the kitchen cabinet surface full of fume but also chokes the nasal cavity.

At present, the range hood adopts the lampblack rising principle, a negative pressure area is generated right above a cooking bench, and the lampblack which naturally rises is sucked and discharged during cooking.

However, the range hood in the prior art is generally higher in setting position, easy in lampblack escaping condition, poor in lampblack absorbing effect and poor in user experience.

Disclosure of Invention

In order to solve the problems in the prior art, namely, the problem that the range hood has poor range hood effect and further influences the using effect is solved.

The utility model provides a range hood, which comprises a box body and a fume collecting hood, wherein the box body is provided with a containing cavity, the fume collecting hood is connected below the box body, the top of the fume collecting hood is provided with an opening, the fume collecting hood is divided into a first fume collecting cavity and a plurality of second fume collecting cavities, the first fume collecting cavity is provided with a first fume collecting port, the opening and an air inlet of the containing cavity are sequentially communicated, the second fume collecting cavity is provided with a second fume collecting port, the opening and the air inlet of the containing cavity are sequentially communicated, and the plurality of second fume collecting cavities are positioned on two opposite sides of the first fume collecting cavity along the horizontal direction.

In the preferred technical scheme of the range hood, the plurality of second fume collecting cavities are positioned on two opposite sides of the first fume collecting cavity in the length direction of the box body.

In the preferred technical scheme of the range hood, the extension length of the first smoke collecting cavity is longer than that of the second smoke collecting cavity.

In the preferred technical scheme of the range hood, the cross-sectional area of the first fume collecting cavity is larger than that of the second fume collecting cavity.

In the preferred technical scheme of the range hood, the fume collecting hood comprises a first fume collecting hood and a second fume collecting hood, the first fume collecting hood is sleeved in the second fume collecting hood, and the first fume collecting hood is provided with a first fume collecting cavity.

In the preferred technical scheme of the range hood, a spacing space is formed between the inner side wall of the second fume collecting hood and the outer side wall of the first fume collecting hood, and the second fume collecting cavity is positioned in the spacing space.

In the preferred technical scheme of the range hood, the range hood further comprises a smoke pipeline, and the smoke pipeline is positioned in the interval space;

the first end of the smoke pipeline is communicated with the air inlet of the accommodating cavity, and the second end of the smoke pipeline is communicated with the second smoke collecting port.

In the above preferred technical solution of the range hood, the second smoke collecting port is provided with a flange at its circumferential outer edge, and the second end of the smoke passing pipe is covered on the outside of the flange, so that a gap is formed between the inner side wall of the second end of the smoke passing pipe and the outer side wall of the flange.

In the preferred technical scheme of the range hood, the range hood further comprises an oil collecting cup, wherein the oil collecting cup is arranged on the fume collecting hood so as to collect oil fume in the fume passing pipeline.

In the preferred technical scheme of the range hood, the range hood further comprises a volute, the volute is positioned in the accommodating cavity, an impeller is arranged in the volute, and the impeller is configured to form a negative pressure area at an air inlet of the accommodating cavity when rotating.

It can be appreciated by those skilled in the art that the range hood provided by the utility model comprises a box body and a fume collecting hood, wherein the box body is provided with a containing cavity, the fume collecting hood is connected below the box body, the top of the fume collecting hood is provided with an opening, the fume collecting hood is divided into a first fume collecting cavity and a plurality of second fume collecting cavities, the first fume collecting cavity is provided with a first fume collecting port, the opening and an air inlet of the containing cavity are sequentially communicated, the second fume collecting cavity is provided with a second fume collecting port, the opening and the air inlet of the containing cavity are sequentially communicated, and the plurality of second fume collecting cavities are positioned on two opposite sides of the first fume collecting cavity along the horizontal direction.

Through the above-mentioned setting, namely, through the design in first collection smoke chamber and a plurality of second collection smoke chamber, specifically, through the oil smoke in the middle of first collection smoke chamber concentrated absorption, the second collection smoke chamber of both sides absorbs the oil smoke of both sides and the oil smoke of running out from first collection smoke chamber, can enlarge the scope of range hood, realizes the zero escape of oil smoke, when guaranteeing to absorb oil smoke effectual to make the outward appearance change of range hood less, guarantee the zero oil smoke in kitchen, the user is felt better.

Drawings

Preferred embodiments of the range hood of the present utility model are described below with reference to the accompanying drawings. The attached drawings are as follows:

fig. 1 is a schematic structural view of a first view angle of a range hood according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a second view angle of the range hood according to the embodiment of the present utility model;

fig. 3 is a schematic structural view of a third view angle of the range hood according to the embodiment of the present utility model;

fig. 4 is a schematic structural view of a part of a range hood according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a smoke ventilation pipeline in a range hood according to an embodiment of the present utility model;

fig. 6 is a schematic diagram of a second smoke collecting port structure in a range hood according to an embodiment of the present utility model.

Reference numerals illustrate:

100-range hood;

110-a box body;

120-fume collecting hood;

121-a first smoke collecting cavity;

1211-a first smoke collection port;

122-a second smoke collection chamber;

1221-a second smoke collection port;

123-a first fume collection hood;

124-a second fume collection hood;

130-a smoke pipeline;

140, flanging;

150-volute.

Detailed Description

First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model. Those skilled in the art can adapt it as desired to suit a particular application.

Further, it should be noted that, in the description of the present utility model, terms such as "inner", "outer", and the like, refer to directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or component must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two components. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

At present, the range hood adopts the lampblack rising principle, a negative pressure area is generated right above a cooking bench, and the lampblack which naturally rises is sucked and discharged during cooking. However, the range hood in the prior art is generally higher in setting position, easy in lampblack escaping condition, poor in lampblack absorbing effect and poor in user experience.

In order to solve the problems, the utility model provides the range hood, through the design of the first smoke collecting cavity and the plurality of second smoke collecting cavities, specifically, through the first smoke collecting cavities for intensively absorbing middle oil smoke, the second smoke collecting cavities on two sides absorb the oil smoke on two sides and the oil smoke which is discharged from the first smoke collecting cavities, so that the range of the oil smoke can be enlarged, zero escape of the oil smoke is realized, the oil smoke absorbing effect is good, the change of the appearance of the range hood is small, the zero oil smoke in a kitchen is ensured, and the use feeling of a user is better.

The following describes a preferred technical scheme of the range hood according to the present utility model with reference to the accompanying drawings.

Fig. 1 is a schematic structural view of a first view angle of a range hood according to an embodiment of the present utility model, fig. 2 is a schematic structural view of a second view angle of the range hood according to an embodiment of the present utility model, and fig. 3 is a schematic structural view of a third view angle of the range hood according to an embodiment of the present utility model.

As shown in fig. 1 to 3, the embodiment of the present utility model provides a range hood 100, which includes a case 110 and a fume collecting hood 120, the case 110 has a receiving chamber, the fume collecting hood 120 is connected below the case 110, the top of the fume collecting hood 120 has an opening, the fume collecting hood 120 is divided into a first fume collecting chamber 121 and a plurality of second fume collecting chambers 122, the first fume collecting chamber 121 has a first fume collecting port 1211, the opening and an air inlet of the receiving chamber are sequentially communicated, the second fume collecting chamber 122 has a second fume collecting port 1221, the opening and the air inlet of the receiving chamber are sequentially communicated, and the plurality of second fume collecting chambers 122 are positioned on opposite sides of the first fume collecting chamber 121 along a horizontal direction.

It should be noted that, the range hood 100 provided in the embodiment of the present utility model may be a fully embedded range hood embedded in a cabinet, or may be other range hoods 100, and in particular, the embodiment of the present utility model is not limited herein too much.

Of course, for convenience of description, the range hood 100 according to the embodiment of the present utility model is a fully embedded range hood.

In some examples, the housing 110 may be a metal piece, the material of which may include one or more of copper, iron, aluminum, tin, and lead. The material of the casting mold may be one of sand, metal or ceramic.

In other examples, the housing 110 may be a plastic material. And (3) injecting molten plastic into a plastic product mold by pressure during injection molding, and cooling and molding to obtain the required plastic part.

The injection molding process may be performed by a mechanical injection molding machine, and the material of the case 110 may include one or more of polyethylene, polypropylene, ABS (terpolymer of three monomers of acrylonitrile (a), butadiene (B), and styrene (S)), polyamide, and polystyrene.

It should be noted that, regarding the material of the case 110, the embodiments of the present utility model are not limited in this way.

Of course, in the production and manufacture, the case 110 may be made of steel plate, plastic or synthetic material under the premise of ensuring the strength.

In addition, the shape of the case 110 is not limited in this embodiment, for example: the case 110 may have a regular shape such as a rectangular parallelepiped shape or a cylindrical shape, and of course, the case 110 may have other irregular shapes.

It should be noted that the top of the fume collecting hood 120 faces the air inlet of the accommodating cavity and is communicated with the air inlet of the accommodating cavity.

In addition, the fume collecting hood 120 is divided into a second fume collecting chamber 122, a first fume collecting chamber 121 and a second fume collecting chamber 122 along the horizontal direction, respectively.

Wherein the second fume collecting cavity 122 has a second fume collecting port 1221, the second fume collecting port 1221 is positioned at the bottom of the second fume collecting cavity 122 and is also positioned at the bottom of the fume collecting hood 120, the first fume collecting cavity 121 has a first fume collecting port 1211, and the first fume collecting port 1211 is positioned at the bottom of the first fume collecting cavity 121 and is also positioned at the bottom of the fume collecting hood 120.

In some examples, the first smoke collecting port 1211 may be in the shape of any shape such as a square, an oval, a trapezoid, etc., which is not particularly limited in this embodiment.

Of course, in some examples, the second smoke collecting port 1221 may be in any shape, such as square, oval, trapezoid, etc., which is not particularly limited in this embodiment.

In addition, it should be noted that, because the fully-embedded range hood is basically higher, that is, the range hood 100 provided in the embodiment of the utility model needs to hang the whole machine relatively higher, so that the oil smoke in the kitchen is easy to escape.

Through the above-mentioned setting, namely, through the design of first album of cigarette chamber 121 and a plurality of second album of cigarette chamber 122, specifically, through the oil smoke in the middle of first album of cigarette chamber 121 concentrated absorption, the oil smoke of both sides and the oil smoke that runs out from first album of cigarette chamber 121 are absorbed to the second album of cigarette chamber 122 of both sides, can enlarge the scope of range hood, realize the zero escape of oil smoke, when guaranteeing to absorb oil smoke effectually to make the outward appearance change of range hood 100 less, guarantee the zero oil smoke in kitchen, the user feel is better.

As shown in fig. 1-3, in some alternative embodiments, a plurality of second fume collection cavities 122 are located on opposite sides of the first fume collection cavity 121 in the length direction of the housing 110.

It can be appreciated that the design can reduce the structure of the range hood 100 as much as possible, and can achieve good oil smoke absorbing effect and zero escape of oil smoke.

As shown in fig. 3, X represents the length direction of the case 110.

In some examples, the number of the second smoke collecting cavities 122 is more than 2, for example, may be 2, 3, 4 or more, and the specific number may be adjusted accordingly in practical situations, which is not limited herein.

Illustratively, as shown in fig. 3, the number of the second smoke collecting cavities 122 is 2, and one second smoke collecting cavity 122 is respectively disposed at the left and right sides of the first smoke collecting cavity 121 in the length direction of the case 110.

Of course, it is also understood that two second smoke collecting cavities 122 are respectively disposed on the left and right sides of the first smoke collecting cavity 121.

As shown in fig. 1-3, in some alternative embodiments, the first smoke collection chamber 121 extends a greater length than the second smoke collection chamber 122.

It will be appreciated that, by adopting such a design, the structure of the range hood 100 can be reduced as much as possible, and the first smoke collecting cavity 121 is mainly used for absorbing the main smoke and the smoke located in the middle, while the second smoke collecting cavity 122 plays an auxiliary role for collecting the smoke on both sides and escaping, so as to further achieve good smoke absorbing effect and zero escape of the smoke.

In some examples, the specific values of the extension length of the first smoke collecting cavity 121 and the extension length of the second smoke collecting cavity 122 may be adjusted correspondingly in practical situations, and the embodiments of the present utility model are not limited herein.

In some alternative embodiments, as shown in fig. 1-3, the cross-sectional area of the first fume collection chamber 121 is greater than the cross-sectional area of the second fume collection chamber 122.

In some examples, the specific values of the cross-sectional area of the first smoke collecting cavity 121 and the cross-sectional area of the second smoke collecting cavity 122 may be adjusted accordingly in practical situations, and the embodiments of the present utility model are not limited herein.

Fig. 4 is a schematic structural view of a part of a range hood according to an embodiment of the present utility model, fig. 5 is a schematic structural view of a smoke ventilation pipeline of the range hood according to an embodiment of the present utility model, and fig. 6 is a schematic structural view of a second smoke collection port of the range hood according to an embodiment of the present utility model.

As shown in fig. 1-6, in some alternative embodiments, the fume collection hood 120 includes a first fume collection hood 123 and a second fume collection hood 124, the first fume collection hood 123 being nested within the second fume collection hood 124, the first fume collection hood 123 having a first fume collection cavity 121.

It will be appreciated that the first fume collection hood 123 and the second fume collection hood 124 are both disposed below the housing 110 and are both in communication with the air inlet of the receiving chamber.

In some examples, the first fume collection hood 123 and the second fume collection hood 124 may be metal pieces, the materials of which may include one or more of copper, iron, aluminum, tin, and lead.

In other examples, the first fume collection hood 123 and the second fume collection hood 124 may be plastic materials.

It should be noted that, the materials of the first fume collecting hood 123 and the second fume collecting hood 124 are not limited in this way.

Of course, the first fume collecting hood 123 and the second fume collecting hood 124 may be made of steel plate, plastic or composite material while ensuring the strength.

In addition, the shape of the first fume collecting hood 123 and the second fume collecting hood 124 is not limited in this embodiment.

For example: the first fume collecting hood 123 and the second fume collecting hood 124 may have regular shapes such as cuboid shape and cylindrical shape, and of course, the first fume collecting hood 123 and the second fume collecting hood 124 may have other irregular shapes.

In some alternative embodiments, as shown in fig. 1-6, a spacing space is provided between the inner side wall of the second fume collection hood 124 and the outer side wall of the first fume collection hood 123, and the second fume collection chamber 122 is located within the spacing space.

The distance between the inner sidewall of the second fume collecting hood 124 and the outer sidewall of the first fume collecting hood 123 is variable along the height direction of the case 110, and may be specifically defined according to practical situations.

In addition, as can be seen, a second fume collection chamber 122 is formed between the inner side wall of the second fume collection hood 124 and the outer side wall of the first fume collection hood 123.

In some alternative embodiments, the range hood 100 further includes a smoke evacuation line 130, the smoke evacuation line 130 being located within the compartment;

the first end of the smoke tube 130 is communicated with the air inlet of the accommodating cavity, and the second end of the smoke tube 130 is communicated with the second smoke collecting port 1221.

It can be appreciated that the design of the smoke pipeline 130 ensures that the air inlet of the accommodating cavity is communicated with the second smoke collecting port 1221, and meanwhile, the pollution of the smoke to the structure in the space can be reduced.

In some examples, the smoke evacuation tube 130 may be mounted to the housing 110 at one end thereof with a removable or fixed connection, such as a screw or snap connection.

Similarly, in some examples, the other end of the smoke conduit 130 may be mounted to the second smoke collecting hood 124 using a removable or fixed connection, such as a screw or snap connection.

By means of the design, the installation and the disassembly of the smoke passage pipeline 130 can be realized, and then the smoke passage pipeline can be disassembled, assembled and maintained at a later stage.

In some examples, the shape of the smoke evacuation tube 130 may be adjusted according to the actual situation, e.g., may be adjusted according to the shape of the compartment.

Illustratively, the smoke evacuation conduit 130 may be arcuate.

As shown in fig. 1 to 6, in some alternative embodiments, the second smoke collecting port 1221 is provided with a flange 140 along the circumferential outer edge, and the second end of the smoke passing pipe 130 is covered on the outer side of the flange 140, so that a gap exists between the inner side wall of the second end of the smoke passing pipe 130 and the outer side wall of the flange 140.

It can be appreciated that the flange 140 is designed to prevent the oil smoke on the inner wall of the smoke passage 130 from falling through the second smoke collecting port 1221 and polluting kitchen tools.

In some examples, the second smoke collecting port 1221 is provided with a circle of flanges 140 at its circumferential outer edge, or a part of the outer edges is provided with flanges 140, and the embodiment of the present utility model is not limited herein, as long as the object can be achieved.

In addition, the second end of the smoke tube 130 is covered outside the flange 140, that is, the second end of the smoke tube 130 wraps the flange 140.

It will be appreciated that the gap between the inner sidewall of the second end of the smoke passing pipe 130 and the outer sidewall of the flange 140 facilitates the oil smoke on the inner wall of the smoke passing pipe 130 to slide down the inner wall of the smoke passing pipe 130 to the gap on the second smoke collecting hood 124.

In some examples, the flange 140 and the second fume collecting hood 124 may be integrally formed, so that not only the connection strength between the flange 140 and the second fume collecting hood 124 may be improved, but also the seamless connection between the flange 140 and the second fume collecting hood 124 may be realized, and further the risk of cracking at the connection position between the flange 140 and the second fume collecting hood 124 may be reduced.

As shown in fig. 1-6, in some alternative embodiments, the range hood 100 further includes an oil collection cup disposed on the fume collection hood 120 to collect the fumes within the fume passage tube 130.

It can be understood that the design of oil collecting cup is convenient for collect the oil smoke, improves the compactibility of whole structure.

As shown in fig. 1 to 6, in some alternative embodiments, the range hood 100 further includes a volute 150, the volute 150 being located in the accommodating chamber, an impeller being provided in the volute 150, the impeller being configured to rotate so as to create a negative pressure region at an air inlet of the accommodating chamber.

In addition, the impeller is disposed in the volute 150, and when the impeller works, negative pressure is formed in the accommodating chamber.

Illustratively, the extractor hood 100 further includes a motor disposed within the receiving chamber, the motor disposed on the volute 150, the motor having a motor shaft in driving communication with the impeller to rotate the impeller.

In some examples, the volute 150 is provided with a smoke inlet and a smoke outlet, wherein the smoke inlet is used for communicating with a smoke outlet in the range hood 100 or an integrated kitchen range, the smoke outlet can be a first smoke collecting port 1211 and a second smoke collecting port 1221, the smoke outlet is used for being connected with one end of a smoke exhaust pipe, and the other end of the smoke exhaust pipe is communicated with a public flue or an external environment so as to convey gas such as smoke from the kitchen range to the outside, thereby improving the air quality of the kitchen.

When the range hood 100 is operated, the impeller rotates, and the fume between the fume collecting hood 120 and the kitchen range is sucked through the first fume collecting port 1211 and the second fume collecting port 1221, and is transferred to the outside.

The range hood provided by the embodiment of the utility model comprises a box body and a fume collecting hood, wherein the box body is provided with a containing cavity, the fume collecting hood is connected below the box body, the top of the fume collecting hood is provided with an opening, the fume collecting hood is divided into a first fume collecting cavity and a plurality of second fume collecting cavities, the first fume collecting cavity is provided with a first fume collecting port, the opening and an air inlet of the containing cavity are sequentially communicated, the second fume collecting cavity is provided with a second fume collecting port, the opening and the air inlet of the containing cavity are sequentially communicated, and the plurality of second fume collecting cavities are positioned on two opposite sides of the first fume collecting cavity along the horizontal direction.

Through the design in first album of cigarette chamber and a plurality of second album of cigarette chamber, specifically, through the oil smoke in the middle of first album of cigarette chamber is concentrated and is absorbed, the oil smoke of both sides and the oil smoke that runs out from first album of cigarette chamber are absorbed to the second album of cigarette chamber of both sides, can enlarge the scope of range hood, realize the oil smoke zero escape, when guaranteeing to absorb the oil smoke effectual to make the outward appearance change of range hood less, guarantee the kitchen zero oil smoke, the user is felt better.

Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will fall within the scope of the present utility model.

Claims (10)

1. The utility model provides a range hood, its characterized in that, includes box and collection petticoat pipe, the box has hold the chamber, collection petticoat pipe connect in the box below, collection petticoat pipe's top has the opening, collection petticoat pipe separates into first collection chamber and a plurality of second collection chamber, first collection chamber has first collection mouth, first collection mouth the opening with hold the air intake in chamber and communicate in proper order, second collection chamber has second collection mouth, second collection mouth the opening with hold the air intake in chamber and communicate in proper order, a plurality of second collection chamber is located along the horizontal direction the opposite sides in first collection chamber.

2. The range hood of claim 1 wherein a plurality of said second fume collection chambers are located on opposite sides of said first fume collection chamber in the length direction of said housing.

3. The range hood of claim 2 wherein the first fume collection chamber extends a greater length than the second fume collection chamber.

4. A range hood according to claim 3, wherein the first fume collection chamber has a cross-sectional area that is greater than the cross-sectional area of the second fume collection chamber.

5. The range hood of any one of claims 1-4, wherein the fume collection hood comprises a first fume collection hood and a second fume collection hood, the first fume collection hood being nested within the second fume collection hood, the first fume collection hood having the first fume collection cavity.

6. The range hood of claim 5 wherein a space is provided between the inner side wall of the second fume collection hood and the outer side wall of the first fume collection hood, the second fume collection cavity being located within the space.

7. The range hood of claim 6 further comprising a smoke passage pipe, said smoke passage pipe being located within said compartment;

the first end of the smoke-passing pipeline is communicated with the air inlet of the accommodating cavity, and the second end of the smoke-passing pipeline is communicated with the second smoke collecting port.

8. The range hood of claim 7, wherein the second smoke collecting port has a flange along a circumferential outer edge thereof, and the second end of the smoke passing pipe is covered on an outer side of the flange, such that a gap is provided between an inner side wall of the second end of the smoke passing pipe and an outer side wall of the flange.

9. The range hood of claim 8, further comprising an oil collection cup disposed on the fume collection hood to collect oil fumes within the fume passage.

10. The range hood of any one of claims 1-4 further comprising a volute within the receiving cavity, the volute having an impeller disposed therein, the impeller configured to rotate to create a negative pressure region at an air inlet of the receiving cavity.