CN208547015U

CN208547015U - Kitchen ventilator

Info

Publication number: CN208547015U
Application number: CN201820451756.1U
Authority: CN
Inventors: 黄良志; 董振宇
Original assignee: AO Smith China Water Heater Co Ltd
Current assignee: AO Smith China Water Heater Co Ltd
Priority date: 2018-04-02
Filing date: 2018-04-02
Publication date: 2019-02-26
Anticipated expiration: 2028-04-02

Abstract

The utility model discloses a kind of kitchen ventilators, the kitchen ventilator includes shell in hollow structure, it is with opposite top and bottom, the upper end of the shell is provided with smoke outlet, setting is provided with the blower of oil smoke suction force in the shell, and the shell is provided with side casing parts and top housing section from bottom to top；Wherein, the side casing parts include: inclination chamber, and the inclination chamber includes: to face the wall and meditate outside, and outer face the wall and meditate tilts to the inside of the inclination chamber from top to bottom, it is described it is outer face the wall and meditate on be provided with the first smoking port, first smoking port is to can form main flue gas channel between the smoke outlet.Kitchen ventilator provided by the utility model can be improved the oil fume pumping-clean rate of kitchen ventilator, to preferably improve the usage experience of user.

Description

Fume exhaust fan

Technical Field

The utility model relates to a smoke exhaust ventilator technical field, in particular to lampblack absorber.

Background

The range hood has become one of the indispensable kitchen household electrical appliances in modern homes. The range hood has the main function of sucking and removing oil smoke during cooking, so that a good environment of a kitchen is maintained.

At present, the oil smoke pumping rate of the range hood is relatively low, and the oil smoke generated during cooking cannot be efficiently and thoroughly sucked by the range hood. The escaping oil smoke which is not absorbed by the range hood can cause serious harm to human health on one hand, and can cause the whole kitchen environment to be greasy on the other hand, thereby increasing the subsequent cleaning and using cost.

Under a specific use scene, for more and more open kitchens selected by families, a large amount of oil smoke is generated at the instant of stir-frying, and higher requirements are provided for indexes such as the oil smoke extraction rate of the range hood.

How to reduce the amount of escaping oil smoke as much as possible, further how to ensure that a small amount of escaping oil smoke can also be sucked by the range hood so as to improve the oil smoke pumping rate of the range hood, thereby better improving the use experience of users is a technical problem that the technical personnel in the field need to be continuously improved for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a range hood can improve the oil smoke clean rate of range hood to improve user's use better and experience.

The above object of the present invention can be achieved by the following technical solutions:

a range hood, comprising: the range hood comprises a shell with a hollow structure, the shell is provided with an upper end and a lower end which are opposite, the upper end of the shell is provided with a smoke outlet, a fan for providing oil smoke suction force is arranged in the shell, and the shell is provided with a side shell part and a top shell part from bottom to top; wherein,

the side shell portion includes: a tilt chamber, the tilt chamber comprising: the outer wall inclines towards the inner side of the inclined cavity from top to bottom, a first smoke suction port is formed in the outer wall, and a main smoke channel can be formed between the first smoke suction port and the smoke exhaust port.

Further, the side shell portion further comprises a vertical cavity communicated with the inclined cavity and arranged at the downstream of the inclined cavity along the flowing direction of the smoke.

Furthermore, a second smoke suction port is arranged on the top shell part, an auxiliary smoke channel can be formed between the second smoke suction port and the smoke discharge port, and the porosity of the first smoke suction port is larger than that of the second smoke suction port.

Furthermore, the second smoking openings are a plurality of groups of openings which are arranged along the outer edge of the top shell part at intervals.

Furthermore, the top shell is provided with a bottom surface, a top surface and a side surface, wherein the bottom surface and the top surface are opposite to each other, the side surface is arranged between the bottom surface and the top surface in a surrounding mode, and the plurality of groups of openings are arranged on the bottom surface and are distributed into a semi-closed type along the boundary line between the bottom surface and the side surface.

Further, the included angle range between the outer wall and the gravity direction is as follows: 2 to 15 degrees.

Furthermore, a plate turnover mechanism capable of opening or closing the main flue gas channel is arranged in the vertical cavity.

Further, still include the guide part that is used for with flue gas direction of drawing air of fan from the entering direction of first mouth of smoking.

Further, the guiding portion is disposed in the inclined cavity, the guiding portion has a first end and a second end opposite to each other, the second end is higher than the first end, the first end is located below the first smoking port, and the second end is fixed to an inner wall of the inclined cavity opposite to the outer wall.

Further, the included angle between the guide part and the outer wall of the inclined cavity ranges from 25 degrees to 120 degrees.

Furthermore, air deflectors are arranged on two sides of the side shell part.

Furthermore, the top shell part comprises a front baffle part extending out, and the front baffle part and the air deflector form a smoke collection area.

It can be seen by the technical scheme that this application embodiment provided above, the lampblack absorber that this application provided sets up top shell part and side shell part in the lower part of casing, wherein, side shell part includes the slope chamber, set up first smoke absorption mouth on the outside wall that the slope chamber faces the user, when this first smoke absorption mouth sets up on the slope outside wall that is closest to the oil smoke, the inhomogeneous problem of air inlet that it can offset the height and arouse, the effect of homogenization promotion suction when can realizing the side air inlet promptly, and then improves the oil smoke extraction rate of lampblack absorber to improve user's use experience better.

Further, the side shell portion includes, from top to bottom: the vertical cavity can be used for maintaining and equalizing negative pressure generated by the fan in the shell, so that ideal suction is generated at the first smoke suction port.

In addition, the second smoke suction port is arranged on the top shell part and matched with the first smoke suction port, so that the oil smoke exhaust rate of the range hood is further improved.

Drawings

Fig. 1 is a schematic structural diagram of a range hood provided in an embodiment of the present application;

fig. 2 is an exploded view of the range hood provided in fig. 1 of the present application;

FIG. 3 is a side view of the range hood provided in FIG. 1 of the present application;

FIG. 4 is a schematic structural view of the range hood provided in FIG. 1 of the present application showing the distribution of the second smoke ports;

fig. 5 is a schematic structural diagram of an exploded panel turnover mechanism and an air deflector of a range hood according to an embodiment of the present application.

Description of reference numerals:

a fan-1; top shell portion-2; a side shell part-3; a vertical cavity-31; -an inclined chamber-32; an exterior wall-320; a first smoking port-321; a second smoking port-311; a plate turnover mechanism-4; a guide part-5; an air deflector-6; front stop part-7.

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments, it should be understood that these embodiments are only used for illustrating the present invention and are not used for limiting the scope of the present invention, and after reading the present invention, the modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the claims attached to the present application.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The utility model provides a range hood can improve the oil smoke clean rate of range hood to improve user's use better and experience.

Referring to fig. 1 to 3 in combination, a range hood provided in an embodiment of the present application may include: the device comprises a shell with a hollow structure, a fan and a shell body, wherein the shell is provided with an upper end and a lower end which are opposite, the upper end of the shell body is provided with a smoke exhaust port, the shell body is internally provided with a fan 1 for providing oil smoke suction force, and the shell body is provided with a side shell part 3 and a top shell part 2 from bottom to top; wherein the side casing part 3 comprises: a tilt chamber 32, the tilt chamber 32 comprising: the outer wall 320, the outer wall 320 inclines to the inner side of the inclined cavity 32 from top to bottom, the outer wall 320 is provided with a first smoke suction port 321, and a main smoke channel can be formed between the first smoke suction port 321 and the smoke exhaust port.

Specifically, this lampblack absorber can be including being hollow structure's casing, and this casing has relative upper end and lower extreme, the position that the casing is close to its upper end is provided with the exhaust port, the exhaust port is linked together with the external world to the oil smoke that produces when will cook leads the external world.

The fan 1 is arranged in the shell and used for providing driving force for smoke flowing for the range hood. Specifically, the number of the fans 1 may be one or more. The structure of the fan 1 itself, the arrangement position and the arrangement mode thereof, etc. may be different according to different actual use scenarios, and the present application is not limited specifically herein. Generally, the fan 1 is provided with a motor, a volute, an impeller provided in the volute, and the like. Wherein the volute has opposing volute inlets and volute outlets. When the motor is electrified, the impeller is driven to rotate, and the airflow can flow from the inlet of the volute to the outlet of the volute.

In the present embodiment, a top housing portion 2 and a side housing portion 3 are provided at a lower portion of the housing at positions close to the soot generation source. One side of the top case part 2 and the upper side of the side case part 3 may intersect and communicate. The side portion is located at the lower side of the top case portion 2, which is the position closest to the soot generation source. The side shell part 3 serves as a main smoking shell part, and oil smoke enters the shell through the side shell part 3 at the first time on the premise that the fan 1 is started.

In the present embodiment, the side case part 3 may include an inclined chamber 32, and the outer surface wall 320 is inclined toward the inner side of the inclined chamber 32 from the top down. The outer wall 320 is provided with a first smoking port 321. When the first suction port 321 as the main suction port is provided on the outer side wall 320 having a certain inclination angle of the side casing part 3, the problem of uneven intake air caused by the height can be offset by the inclined structure formed by the outer side wall 320, that is, the effect of improving the suction force uniformly when the intake air is introduced from the side can be achieved.

In one embodiment, the side shell part 3 may further comprise a vertical cavity 31 communicating with the inclined cavity 32, which is arranged downstream of the inclined cavity 32 in the flow direction of the flue gas.

In the present embodiment, the side case portion 3 may include, from top to bottom: a vertical cavity 31 and an inclined cavity 32. The cross-sectional area of the vertical cavity 31 in the direction extending along the longitudinal direction may be the same or substantially the same, so as to facilitate maintaining the negative pressure generated by the blower 1 in the housing.

The inclined cavity 32 may in particular comprise: an exterior wall 320, a mounting wall opposite the exterior wall 320, and first and second sidewalls disposed between the exterior wall 320 and the mounting wall. Wherein the outer wall 320 is inclined inward from top to bottom.

Wherein the inclination angle of the outer wall 320 is a small angle inclination. Specifically, the included angle between the outer wall 320 and the gravity direction may be: 2 to 15 degrees. When the included angle between the outer wall 320 and the gravity direction is the small angle, the effect of improving the suction force in a uniform manner when the side surface enters the wind can be better realized, and the problems of serious negative pressure loss caused by sudden change of the cross section due to overlarge inclined angle and unobvious pressure equalizing effect due to the overlarge inclined angle can be solved.

When the air blower 1 is used, after the air blower 1 is started, a main smoke channel can be formed between the first smoke suction port 321 and the smoke exhaust port, most of smoke generated by a smoke generation source can enter the shell through the first smoke suction port 321 in time and is subsequently exhausted from the smoke exhaust port.

The lampblack absorber that provides in the embodiment of this application sets up top shell part 2 and side shell part 3 in the lower part of casing, wherein, side shell part 3 includes slope chamber 32, set up first mouth 321 of inhaling on the outside wall 320 that the slope chamber 32 faces the user, when this first mouth 321 of inhaling sets up on the slope outside wall 320 that is closest to the oil smoke, the inhomogeneous problem of air inlet that it can offset the height and arouse, the effect of homogenization promotion suction when can realizing the side air inlet promptly, and then improve the oil smoke extraction rate of lampblack absorber to improve user's use experience better.

Further, the side shell portion 3 includes, from top to bottom: a vertical cavity 31 and an inclined cavity 32, wherein the vertical cavity 31 can be used for maintaining and equalizing the negative pressure generated in the housing by the fan 1, so as to generate a desired suction force at the first smoke suction port 321.

Referring to fig. 4, in order to further increase the oil smoke exhaust rate of the range hood and achieve the purpose of zero escape of oil smoke as much as possible, a second smoke suction port 311 is disposed on the top casing portion 2. An auxiliary smoke channel can be formed between the second smoke suction port 311 and the smoke exhaust port. The porosity of the first smoking port 321 is greater than the porosity of the second smoking port 311.

In the present embodiment, when most of the soot enters the housing through the first soot-absorbing opening 321 uniformly and efficiently, a small amount of soot may also escape upward along the outer wall 320 of the housing along the side casing 3. By providing the second suction port 311 as an auxiliary suction port in the top case portion 2, a small amount of escaping soot can be sucked into the case. When the fan 1 is started, an auxiliary smoke channel can be formed between the second smoke suction port 311 and the smoke discharge port, and a small amount of oil smoke which is not sucked by the first smoke suction port 321 is sucked through the second smoke suction port 311, flows through the auxiliary smoke channel, and is subsequently discharged from the smoke discharge port.

The porosity of the first smoking port 321 is larger than that of the second smoking port 311, considering the combination of the maintenance of the pressure inside the housing and the reasonable distribution of the amount of smoke. The porosity specifically means: the percentage of pore volume in a bulk material having a thickness to the total volume of the material in its natural state. For the housing, the thicknesses of the top housing part 2 and the side housing part 3 are generally not different, and the difference in porosity is mainly how much pores are opened per unit area, i.e., the size of the porosity. When the porosity of the second smoke suction port 311 is small, on one hand, the influence on the negative pressure of the main smoke channel can be reduced as much as possible, and on the other hand, the function of adsorbing a small amount of oil smoke can be satisfied.

Specifically, the porosity ratio of the second smoking port 311 to the first smoking port 321 may be generally less than 0.6. When the porosity ratio of the second smoke suction port 311 to the first smoke suction port 321 is less than 0.6, the first smoke suction port 321 of the side shell part 3 and the second smoke suction port 311 of the top shell part 2 are matched, so that an ideal smoking effect on oil smoke is realized.

The applicant found that: the small amount of soot not sucked through the first soot suction port 321 is mainly dispersed soot dispersed around the first soot suction port 321, and the soot generally moves upward along both sides of the side casing part 3 and the top casing part 2 after escaping. In order to quickly and efficiently suck the escaped oil smoke, the second smoke inlet 311 may be a plurality of sets of openings spaced along the outer edge of the top case part 2, so that the oil smoke can be guided by using the wall-attached flow effect of the oil smoke, and the discomfort of the oil smoke not sucked by the first smoke inlet 321 to the cooker can be reduced as much as possible.

Specifically, the top housing part 2 has opposing bottom and top surfaces, and side surfaces enclosed between the bottom and top surfaces. The plurality of groups of openings are arranged on the bottom surface and are distributed into a semi-closed type along the boundary line of the bottom surface and the side surface.

Wherein the specific shape of the semi-closed type can be set according to the specific configuration of the top case portion 2. As shown in fig. 4, when the top case portion 2 has a regular rectangular parallelepiped shape, the plurality of sets of openings may be arranged in a "n" shape. For example, when the edge of the top case portion 2 has an irregular shape having two circular arcs joined, the plurality of sets of openings may be arranged in a double circular arc shape. Of course, the shape of the top housing part 2 may also be other deformable structures, and the arrangement of the plurality of sets of openings may be adapted accordingly, and the specific arrangement of the plurality of sets of openings is not limited herein. When a small amount of oil smoke moves upwards along the periphery, the oil smoke can enter the enclosure rings of the semi-closed type multiple groups of openings, so that the oil smoke is completely absorbed and zero escape of the oil smoke is realized.

In one embodiment, air deflectors 6 are also provided on both sides of the side casing part 3.

Since a small amount of oil smoke which is not sucked by the first smoke suction port 321 is mainly dispersed at the periphery, the air deflector 6 can guide the escaped small amount of oil smoke to move along the outer wall 320 of the range hood, and finally the oil smoke is sucked by the second smoke suction port 311 of the range hood.

Further, the top shell part 2 may further include a front blocking part 7 extending therefrom, and the front blocking part 7 and the air deflector 6 form a smoke collection area. Through top shell part 2 sets up preceding fender portion 7 for this preceding fender portion 7 with aviation baffle 6 constitutes and holds together the cigarette district, can guarantee the oil smoke that produces during the culinary art, do not being inhaled by first mouth 321 of smoking and removing, also do not by second mouth 311 of smoking under the condition of inhaling twice, can turn back the back again and inhale and remove, through this 7 aviation baffle of preceding fender portion 6 and first mouth 321 of smoking, the overall arrangement of second mouth 311 of smoking, realized holistic similar biconcave triangle negative pressure region, make whole negative pressure region more approach in more three-dimensional form, guaranteed that the oil smoke is at the rising in-process minimum excessive.

Referring to fig. 5, in one embodiment, a flap mechanism 4 capable of opening or closing the main smoke channel is further disposed in the vertical cavity 31 of the range hood.

The applicant found that: in the prior art, the flap mechanism 4 is usually arranged on or outside the smoke suction port, and the opening and closing of the flap can cause the smoke to expand outwards, which inevitably can lead to the problem of increasing the escape amount of the oil smoke. Specifically, the traditional lampblack absorber that opens and shuts inwards at the air intake turns over the problem that the board had the influence to inside wind channel when opening and shutting. In addition, the inward opening and closing can also influence the placement of the oil screen, and when the oil screen is placed at the downstream of the turning plate, the defect that the filter screen of the range hood is complex to disassemble and clean is also existed.

In this embodiment, turn-over plate mechanism 4 sets up in the vertical chamber 31 of lampblack absorber, when starting during the lampblack absorber, turn-over plate mechanism 4 opens main flue gas passageway, when closing during the lampblack absorber, turn-over plate mechanism 4 closes main flue gas passageway, and it is located the low reaches of first smoke suction opening 321, and first smoke suction opening 321 generally can cooperate pieces such as oil net and oil cup in addition, can furthest reduce greasy dirt content in the oil smoke, adopts this mode of arrangement to reduce the possibility that the board is infected by the greasy dirt, has guaranteed the reliability of system. Specifically, the flap assembly may include: the smoke exhaust device comprises a turning plate, a rotating shaft and a motor connected with the rotating shaft, wherein when the motor is started, the rotating shaft and the turning plate are driven to rotate, and the main smoke channel is opened or closed.

Because the flap mechanism 4 provided by the application is arranged in the vertical cavity, the flap mechanism does not influence the smoke of the first smoke suction port 321 when being opened or closed, and can better ensure that the range hood rapidly enters a high-efficiency working state at the starting stage of the range hood and the oil smoke can be rapidly sucked; and in the closing stage of the range hood, the range hood can also maintain a high-efficiency working state. In addition, it sets up in vertical chamber 31 of flap mechanism 4 that this application provided, when it closes, can close main flue gas passageway and do not influence supplementary flue gas passageway, and second smoking mouth 311 can also continue to absorb a small amount of oil smoke that escapes.

In one embodiment, a guide 5 is also provided within the inclined cavity 32.

The forming direction of the negative pressure of the vertical cavity 31 and the inclined cavity 32 provided by the present application is substantially along the vertical direction, and in order to generate a larger suction force at the suction opening, the guide portion 5 is arranged in the inclined cavity 32 at a position close to the first smoke suction opening 321. The guide part 5 arranged in the inclined cavity 32 is used for improving the negative pressure range in the horizontal direction, so that the oil smoke removing effect is better.

Specifically, the guide portion 5 may be a flat plate, or may have a plate structure with a certain curvature, or a structure in which a flat plate is combined with a curved plate, and of course, the guide portion 5 may also have other shapes, which is not limited herein. Having opposite first and second ends, the second end being higher than the first end, wherein the first end is located below the first smoking port 321 and the second end is fixed to the inner wall of the inclined cavity 32. The guide portion 5 may be a straight plate as a whole, or a curved plate having a certain curvature as a whole, or a combination of a straight plate and a curved plate, and the present application is not specifically limited herein.

The applicant found that: when the included angle between the guiding part 5 and the outer wall 320 of the inclined cavity 32 is different, different oil smoke removing effects can be generated. Specifically, when the included angle between the guide portion 5 and the inclined wall is 25 to 120 degrees, a more ideal oil smoke removing effect can be achieved.

When a user cooks, after the range hood is started, the fan 1 is started and the turning plate is opened, at the moment, the main flue gas channel is opened, negative pressure is generated in the main flue gas channel and the auxiliary flue gas channel, and therefore the suction force to oil smoke is generated. Cooking fumes can firstly enter the main smoke channel from the first smoke suction port 321 under the suction force generated by the fan 1 at the first time; a small amount of escaping oil smoke enters the auxiliary smoke channel through the second smoke suction port 311 and is discharged through the smoke discharge port subsequently. On the whole, the lampblack absorber that this application provided can guarantee that the oil smoke that produces can be better by the suction away when culinary art, has consequently improved the oil smoke clean rate of lampblack absorber greatly to improve user's use better and experience.

Any numerical value recited herein includes all values from the lower value to the upper value that are incremented by one unit, provided that there is a separation of at least two units between any lower value and any higher value. For example, if it is stated that the number of a component or a value of a process variable (e.g., temperature, pressure, time, etc.) is from 1 to 90, preferably from 20 to 80, and more preferably from 30 to 70, it is intended that equivalents such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also expressly enumerated in this specification. For values less than 1, one unit is suitably considered to be 0.0001, 0.001, 0.01, 0.1. These are only examples of what is intended to be explicitly recited, and all possible combinations of numerical values between the lowest value and the highest value that are explicitly recited in the specification in a similar manner are to be considered.

Unless otherwise indicated, all ranges include the endpoints and all numbers between the endpoints. The use of "about" or "approximately" with a range applies to both endpoints of the range. Thus, "about 20 to about 30" is intended to cover "about 20 to about 30", including at least the endpoints specified.

All articles and references disclosed, including patent applications and publications, are hereby incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not materially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe combinations of elements, components, or steps herein also contemplates embodiments that consist essentially of such elements, components, or steps. By using the term "may" herein, it is intended to indicate that any of the described attributes that "may" include are optional.

A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.

The above embodiments in the present specification are all described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment is described with emphasis on being different from other embodiments.

The above description is only a few embodiments of the present invention, and although the embodiments of the present invention are disclosed as above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A range hood is characterized by comprising a shell in a hollow structure, wherein the shell is provided with an upper end and a lower end which are opposite, the upper end of the shell is provided with a smoke outlet, a fan for providing oil smoke suction force is arranged in the shell, and the shell is provided with a side shell part and a top shell part from bottom to top; wherein,

2. A range hood as set forth in claim 1 wherein said side housing portion further includes a vertical chamber communicating with said angled chamber and disposed downstream of said angled chamber in the direction of flue gas flow.

3. A range hood as set forth in claim 2, wherein a second smoke port is provided on said top housing portion, an auxiliary smoke path being formable between said second smoke port and said smoke discharge port, a porosity of said first smoke port being greater than a porosity of said second smoke port.

4. A range hood as set forth in claim 3 wherein said second smoke extraction opening is a plurality of spaced apart sets of openings along the outer edge of said top housing portion.

5. A range hood as set forth in claim 4, wherein said top case has opposite bottom and top surfaces and side surfaces enclosed between said bottom and top surfaces, said plurality of sets of openings being provided on said bottom surface and arranged in a semi-enclosed pattern along a boundary line between said bottom surface and said side surfaces.

6. A range hood as set forth in claim 1, wherein the range of angles between said outer wall and the direction of gravity is: 2 to 15 degrees.

7. The range hood according to claim 2, wherein a flap mechanism capable of opening or closing the main flue gas channel is further arranged in the vertical cavity.

8. The range hood according to claim 1, further comprising a guide portion for guiding the smoke from an entering direction of the first smoke suction port to a suction direction of the fan.

9. The range hood according to claim 8, wherein the guide portion is disposed in the inclined cavity, the guide portion has a first end and a second end opposite to each other, the second end is higher than the first end, wherein the first end is located below the first smoke suction port, and the second end is fixed to an inner wall of the inclined cavity opposite to the outer wall.

10. A range hood as set forth in claim 9, wherein said guide portion forms an angle with an outer surface wall of said inclined chamber in a range of 25 degrees to 120 degrees.

11. A range hood as set forth in claim 1, wherein air deflectors are further provided on both sides of said side housing part.

12. The range hood of claim 11, wherein the top shell portion includes a front baffle extending therefrom, the front baffle and the air deflector forming a smoke collection area.