CN217154272U - Universal range hood fan cabinet box and range hood - Google Patents

Abstract

The utility model discloses a universal range hood fan cabinet box and a range hood, the box body is provided with an accommodating cavity, the bottom of the side wall of the box body is used for being connected with a smoke collecting hood, the bottom surface of the box body is provided with a lower smoke inlet communicated with the accommodating cavity, the bottom of the side wall of the two sides of the box body is provided with a side smoke inlet structure communicated with the accommodating cavity, the lower smoke inlet can be matched with the single-cavity structure of the smoke collecting hood by utilizing the lower smoke inlet, the side smoke inlet structure of the two sides can be matched with the double-cavity structure of the smoke collecting hood by utilizing the side smoke inlet structure of the two sides, the lower smoke inlet and the side smoke inlet structures of the two sides can be matched with the three-cavity structure of the smoke collecting hood, therefore, the range hood cabinet box can be compatible with the range hoods adopting different smoke suction cavity structures such as single cavity, double cavities, three cavities and the like, the universality of the fan cabinet box is improved, the parts used by switching the fan cabinet box and the smoke collecting hood are reduced, thereby the cost is effectively reduced, improving the market competitiveness of the product.

Description

Universal range hood fan cabinet box and range hood

Technical Field

The utility model relates to a lampblack absorber technical field, in particular to lampblack absorber bellows box and lampblack absorber that can be general.

Background

The lampblack absorber is a very high domestic appliance of popularization degree, in order to satisfy different consumers to lampblack absorber suction and figurative demand, there will be single chamber smoking on the collection cigarette cover of lampblack absorber, different smoking cavity structures such as two-chamber smoking or three chamber smoking, produce suction through fixing the installation of wind cabinet case on collection cigarette cover and utilizing the inside wind cabinet of wind cabinet case and can take away the oil smoke that gathers together in the smoking cavity, and current wind cabinet case generally only has an open inlet flue in bottom, in order to match with the smoking cavity structure of two-chamber smoking or three chamber smoking, often still need increase the part of a switching between wind cabinet case and collection cigarette case, the increase of part can cause the increase of cost, lead to the product pricing too high and lose market competitiveness.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a lampblack absorber bellows case that can be general sets up side inlet structure and can make case body and different smoking chamber structure match bottom the lateral wall of case body both sides, has improved the commonality of bellows case, is favorable to reduce cost.

The utility model discloses still provide a lampblack absorber, can effectively reduce the quantity of part through adopting the above-mentioned lampblack absorber wind cabinet case that can be general to practice thrift the cost.

According to the utility model discloses a lampblack absorber bellows box that can general of first aspect embodiment, include: the smoke collecting box comprises a box body, a smoke collecting cover and a smoke inlet, wherein the box body is provided with a containing cavity, the bottom of the side wall of the box body is used for being connected with the smoke collecting cover, and the bottom surface of the box body is provided with a lower smoke inlet communicated with the containing cavity; the side smoke inlet structure is arranged at the bottoms of the side walls of the two sides of the box body, and the side smoke inlet structure is communicated with the accommodating cavity.

According to the utility model discloses can general lampblack absorber bellows case has following beneficial effect at least:

the universal fume exhauster fan cabinet box of the utility model is provided with a lower fume inlet on the bottom surface of the box body, a side fume inlet structure is arranged at the bottom of the side wall fixedly connected with the fume collecting hood, the fan component is arranged in the cavity of the box body to pump and exhaust the oil smoke gathered in the smoke absorbing cavity of the smoke collecting cover, the lower smoke inlet can be matched with the single-cavity structure of the smoke collecting cover, the structure of the side smoke inlets at two sides can be matched with the double-cavity structure of the smoke collecting cover, the structure of the lower smoke inlet and the side smoke inlets at two sides can be matched with the three-cavity structure of the smoke collecting cover, therefore, the air cabinet box can be compatible with the range hood with the smoke collecting hood adopting different smoke suction cavity structures such as a single cavity, a double cavity and a three cavity, the universality of the air cabinet box is improved, and parts used by switching the air cabinet box and the smoke collecting hood are reduced, so that the cost can be effectively reduced, and the market competitiveness of products is improved.

According to some embodiments of the utility model, the side advances the mouth structure and includes a plurality of first side advances the mouth and a plurality of second side advances the mouth, the case body is the cuboid form, and is a plurality of first side advances the mouth and all sets up the lateral wall bottom of case body one side is a plurality of second side advances the mouth and all sets up the lateral wall bottom of the relative one side of case body.

According to the utility model discloses a some embodiments, the case body includes framework and roof, the roof lid is located the one end of framework, the other end of framework forms down advance the mouth, the framework includes face-piece and backplate, the face-piece includes the front bezel and sets up correspondingly the left side board and the right side board of front bezel left and right sides, the backplate respectively with the left side board with the right side board is connected, and is a plurality of the mouth is advanced to first side all sets up the bottom of left side board, and is a plurality of the mouth is advanced to the second side all sets up the bottom of right side board.

According to the utility model discloses a some embodiments, it is a plurality of first side advances the mouth and follows the bottom border of left side board is arranged, and is a plurality of in advancing the mouth at least two first side advances the mouth along deviating from in the direction open area of backplate steadilys decrease.

According to some embodiments of the invention, the bottom edge of the face shell and/or the back plate is provided with a beveled portion.

According to some embodiments of the invention, the angle of the beveled portion relative to the horizontal is in the range of 5 ° to 15 °.

According to the utility model discloses lampblack absorber of second aspect embodiment, including the lampblack absorber wind cabinet case that above-mentioned embodiment disclosed.

According to the utility model discloses lampblack absorber has following beneficial effect at least:

the utility model discloses a lampblack absorber adopts above-mentioned lampblack absorber wind cabinet case for lampblack absorber wind cabinet case can with single chamber, two-chamber, three different smoking chamber structures's collection petticoat pipe lug connection and matching use, has reduced the use of switching part between lampblack absorber wind cabinet case and the different structure collection petticoat pipe, is favorable to practicing thrift the product cost of lampblack absorber, makes the lampblack absorber product put in more there is the price advantage behind the market.

According to some embodiments of the utility model, still including setting up on the case body and being located hold the fan subassembly in the chamber, the case body is the cuboid form, the fan subassembly with distance D1 between the preceding lateral wall of case body is greater than the fan subassembly with distance D2 between the back lateral wall of case body.

According to some embodiments of the utility model, side inlet smoke structure includes that a plurality of first sides advance the mouth and a plurality of second sides advance the mouth, and is a plurality of first side advances the mouth and all sets up left side wall bottom and edge of case body the left side wall bottom border of case body is arranged, and is a plurality of second side advances the mouth and all sets up right side wall bottom and edge of case body the right side wall bottom border of case body is arranged, fan subassembly with it is regional to inject first air inlet between the preceding lateral wall of case body, fan subassembly with it is regional to inject the second air inlet between the back lateral wall of case body, is located first air inlet region below the open area of first side inlet smoke mouth is less than and is located the open area of first side inlet smoke mouth of second air inlet region below, is located first air inlet region below the open area of second side inlet smoke mouth is less than and is located the open area of second side inlet smoke mouth of second air inlet region below The mouth area.

According to some embodiments of the utility model, still be provided with fan mounting structure on the roof of case body.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is an exploded schematic view of a wind cabinet according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a wind cabinet frame according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a range hood according to one embodiment of the present invention;

fig. 4 is a schematic view illustrating an installation position of the fan assembly in the wind box according to one embodiment of the present invention;

fig. 5 is the utility model discloses the lampblack absorber air current schematic diagram of one of them embodiment.

Reference numerals:

the box comprises a box body 100, a top plate 110, a face shell 120, a back plate 130, a lower smoke inlet 200, a side smoke inlet structure 300, a first side smoke inlet 310, a second side smoke inlet 320, a fan mounting structure 400, a smoke collecting cover mounting structure 500, a first mounting hole 510, a second mounting hole 520, a fan assembly 600, a smoke collecting cover 700, a first smoke absorbing cavity 710, a second smoke absorbing cavity 720 and a third smoke absorbing cavity 730.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the orientation description, such as the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., is the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-5, according to the utility model discloses a but general lampblack absorber fan case, including case body 100, case body 100 has the appearance chamber, and the lateral wall bottom of case body 100 is used for being connected with collection petticoat pipe 700, and the bottom surface of case body 100 is seted up and is held the lower mouth 200 that advances that the chamber communicates, and the lateral wall bottom of case body 100 both sides still is provided with side and advances mouth structure 300, and side advances mouth structure 300 and holds the chamber intercommunication.

Wherein, the side advances the mouth structure 300 can be the single through-hole that sets up in the lateral wall bottom of the case body 100 left and right sides, also can be a plurality of grid holes, refer to fig. 1, case body 100 can be the cavity box body of being made by cold-rolled sheet or corrosion resistant plate, the inside cavity of case body 100 is in order to form and holds the chamber, the mouth that gives out the smoke has been seted up to the roof of case body 100, generally install fan subassembly 600 in the case body 100, fan subassembly 600 during operation can produce the negative pressure in the appearance chamber of case body 100, thereby make the oil smoke can enter into holding the chamber and discharge through the mouth that gives out the smoke from lower mouth 200 and side advances the mouth structure 300. It should be noted that the box body 100 is often fixedly connected to the smoke collecting hood 700 through the bottom of the side wall, and therefore, the side smoke inlet structure 300 formed on the bottom of the side wall on both sides of the box body 100 can be combined with the lower smoke inlet 200 formed on the bottom of the box body 100, so that the box body 100 and the smoke collecting hood 700 are used in a matching manner in different smoking cavity structures without using any adapter parts. It can be understood that, when it is required to match with the single-chamber structure, it is only necessary to communicate the single-chamber structure with the lower smoke inlet 200 and to intake air to smoke through the lower smoke inlet 200, when it is required to match with the dual-chamber structure, it is only necessary to communicate the side smoke inlet structures 300 on both sides with the dual-chamber structure respectively to intake air to smoke, and when it is required to match with the three-chamber structure, it is possible to communicate the air to smoke through the lower smoke inlet 200 and the side smoke inlet structures 300 on both sides with the three-chamber structure respectively, specifically, referring to fig. 3 and 5, the smoke collecting cover 700 of the three-chamber structure has a first smoke collecting chamber 710, a second smoke collecting chamber 720 and a third smoke collecting chamber 730 arranged transversely, and the bottom of the sidewall of the box body 100 is provided with the smoke collecting cover mounting structure 500, wherein the smoke collecting cover mounting structure 500 may include a first mounting hole 510 arranged on the face cover 120 and a second mounting hole 520 arranged on the back plate 130, the smoke collecting cover 700 can be fixedly connected with the bottom side wall of the box body 100 through the first mounting hole 510 and the second mounting hole 520, the lower smoke inlet 200 of the box body 100 is communicated with the second smoke suction cavity 720 in the middle of the smoke collecting cover 700, the side smoke inlet structures 300 on two sides of the box body 100 are respectively communicated with the first smoke suction cavity 710 and the third smoke suction cavity 730 of the smoke collecting cover 700, and the fan assembly 600 can generate negative pressure in the accommodating cavity of the box body 100 and enable the lower smoke inlet 200 and the side smoke inlet structures 300 to simultaneously intake air and smoke. In addition, further taking only a single-cavity structure of the smoke collecting cover 700 as an example for explanation, referring to fig. 3 and 5 as well, assuming that only the second smoke absorbing cavity 720 located in the middle is located on the smoke collecting cover 700, the bottom of the side wall of the box body 100 is connected with the smoke collecting cover 700 so that the lower smoke inlet 200 of the box body 100 is opposite to and communicated with the second smoke absorbing cavity 720, since only single-cavity air intake is needed for smoking, the side smoke inlet structure 300 can be blocked, for example, a closing plate can be arranged on the side wall of the box body 100 or a closing plate can be arranged on the top of the smoke collecting cover 700 so as to close the side smoke inlet structure 300, so that the oil smoke can directly flow into the second smoke absorbing cavity 720 and enter into the cavity of the box body 100 through the lower smoke inlet 200, and finally be discharged from the smoke outlet under the negative pressure of the fan assembly 600. Therefore, the side smoke inlet structure 300 is formed in the bottom of the side wall of the two sides of the box body 100, so that the air cabinet box can be compatible with the range hood with the smoke collecting hood 700 adopting different smoke suction cavity structures such as a single cavity, a double cavity and a triple cavity, the universality of the air cabinet box is improved, parts used for switching between the air cabinet box and the smoke collecting hood 700 are reduced, the cost can be effectively reduced, and the market competitiveness of products is improved.

In some embodiments of the present invention, the side smoke inlet structure 300 comprises a plurality of first side smoke inlets 310 and a plurality of second side smoke inlets 320, the box body 100 is rectangular, the plurality of first side smoke inlets 310 are all disposed on the bottom of the side wall of one side of the box body 100, and the plurality of second side smoke inlets 320 are all disposed on the bottom of the side wall of the opposite side of the box body 100.

Specifically, referring to fig. 1-3, a plurality of first side smoke inlets 310 are formed at the bottom of the side wall of one side of the box body 100, a plurality of second side smoke inlets 320 are formed at the bottom of the side wall of the other side of the box body 100, and the side smoke inlet structures 300 at both sides are designed to be grid structures with a plurality of openings, so that disturbance of air flow is reduced, eddy current phenomenon in the inner cavity of the box body 100 is avoided, and noise generated during smoke discharge of the air cabinet box can be effectively reduced.

In some embodiments of the present invention, the box body 100 includes a frame body and a top plate 110, the top plate 110 covers one end of the frame body, the other end of the frame body forms a lower smoke inlet 200, the frame body includes a face shell 120 and a back plate 130, the face shell 120 includes a front plate and a left side plate and a right side plate correspondingly disposed on the left and right sides of the front plate, the back plate 130 is connected with the left side plate and the right side plate respectively, the plurality of first side smoke inlets 310 are disposed on the bottom of the left side plate, and the plurality of second side smoke inlets 320 are disposed on the bottom of the right side plate.

Specifically, referring to fig. 1, the top plate 110, the face shell 120, and the back plate 130 are connected to each other and enclose to form a rectangular box body 100, the bottom of the box body 100 is opened to form a lower smoke inlet 200, the bottom of the left side plate is provided with a plurality of first side smoke inlets 310, the bottom of the right side plate is provided with a plurality of second side smoke inlets 320, and the whole structure is simple, easy to process, and convenient to install and use.

In some embodiments of the present invention, as shown in fig. 1-3, the plurality of first side smoke inlets 310 are arranged along the bottom edge of the left side plate, and at least two first side smoke inlets 310 among the plurality of first side smoke inlets 310 have decreasing opening areas along the direction deviating from the back plate 130.

It should be noted that, referring to fig. 3, when the fan assembly 600 is installed in the box body 100, it is generally closer to one side of the back plate 130, so that the air inlet space between the fan assembly 600 and the front plate is larger and the air inlet space between the fan assembly and the back plate 130 is smaller, therefore, referring to fig. 1 to 3, the opening area of the first side smoke inlet 310 located at the larger position of the air inlet space is small, and the opening area of the first side smoke inlet 310 located at the smaller position of the air inlet space is large, so that the air inlet compensation is realized for the different air inlet spaces at the front and rear sides of the fan assembly 600 by using the different opening areas of the first side smoke inlet 310, so that the air inlet is more uniform, which is beneficial to reducing the eddy current and the wind noise.

In some embodiments of the present invention, as shown in fig. 1-3, the bottom edge of the face shell 120 and/or the back plate 130 is provided with a beveled portion.

Referring to fig. 1 to 3, the bottom edges of the left side plate and the right side plate of the panel housing 120 may be provided with bevel edges, and it should be noted that the bevel edges may enable oil droplets formed by condensation of oil smoke on the inner wall surface of the box body 100 to flow into a container for collecting oil stains along the bevel edges, so as to be convenient for cleaning and use.

In some embodiments of the present invention, the angle between the beveled portion and the horizontal plane is in the range of 5 ° to 15 °.

It should be noted that, through experimental data, it can be found that when the inclination angle is designed to be between 5 ° and 15 °, the oil drops can flow more smoothly along the inclined edge, and specifically, referring to fig. 1 to 3, for example, an included angle between the inclined edges of the bottoms of the left side plate and the right side plate with respect to the horizontal plane can be set to 10 °, so that a good oil guiding effect can be achieved by using the inclined edges.

As shown in fig. 3 and 5, according to the utility model discloses a lampblack absorber of second aspect embodiment, including the disclosed lampblack absorber wind cabinet case of above-mentioned embodiment.

It should be noted that, through adopting the range hood fan cabinet case disclosed in the above embodiment, because the range hood fan cabinet case can be directly connected and matched with the collection petticoat pipe 700 of the different smoking cavity structures such as single chamber, two-chamber, three-chamber, therefore can reduce the use of switching part between range hood fan cabinet case and the collection petticoat pipe 700 that the smoking cavity structure is different, be favorable to practicing thrift the cost of part, thereby can reduce the manufacturing cost of range hood product, make the range hood product have stronger price advantage after putting into market.

In some embodiments of the present invention, as shown in fig. 3-4, the case further includes a fan assembly 600 disposed on the case body 100 and located in the accommodating cavity, the case body 100 is rectangular, and a distance D1 between the fan assembly 600 and the front side wall of the case body 100 is greater than a distance D2 between the fan assembly 600 and the rear side wall of the case body 100.

Specifically, referring to fig. 3-4, taking a three-cavity range hood as an example for explanation, because the air cabinet box of the range hood is often the rear side close to the wall and the front side is closer to the cooking range when being installed and used, the second smoke suction cavity 720 in the middle of the three-cavity range hood is the main smoke suction cavity, the first smoke suction cavity 710 and the third smoke suction cavity 730 on the two sides are the auxiliary smoke suction cavities, and the distance D1 between the fan assembly 600 and the front side wall of the box body 100 is larger than the distance D2 between the fan assembly 600 and the rear side wall of the box body 100, so that the air inlet space on the front side of the fan assembly 600 is larger, it can be understood that the oil smoke generated by the user during cooking is mainly the position of the cooking range, therefore most of the oil smoke generated at the position of the cooking range will gather in the second smoke suction cavity 720 and flow into the containing cavity of the box body 100 through the lower smoke inlet 200, and the air inlet space on the front side of the fan assembly 600 close to the cooking range hood is larger so as to absorb more oil smoke, is favorable for improving the smoking effect of the range hood.

In some embodiments of the present invention, as shown in fig. 1-3, the side smoke inlet structure 300 includes a plurality of first side smoke inlets 310 and a plurality of second side smoke inlets 320, the plurality of first side smoke inlets 310 are all disposed at the bottom of the left side wall of the box body 100 and arranged along the bottom edge of the left side wall of the box body 100, the plurality of second side smoke inlets 320 are all disposed at the bottom of the right side wall of the box body 100 and arranged along the bottom edge of the right side wall of the box body 100, a first air inlet region is defined between the blower assembly 600 and the front side wall of the box body 100, a second air inlet region is defined between the blower assembly 600 and the rear side wall of the box body 100, the opening area of the first side smoke inlets 310 located below the first air inlet region is smaller than the opening area of the first side smoke inlets 310 located below the second air inlet region, and the opening area of the second side smoke inlets 320 located below the first air inlet region is smaller than the opening area of the second side smoke inlets 320 located below the second air inlet region.

Referring to fig. 1-3, it should be noted that, since the first air intake area has a larger air intake space than the second air intake area, and the opening areas of the first side smoke inlet 310 and the second side smoke inlet 320 below the first air intake area are smaller and the opening areas of the first side smoke inlet 310 and the second side smoke inlet 320 below the second air intake area are larger, air intake compensation can be implemented for the first air intake area and the second air intake area, specifically, taking the first side smoke inlet 310 as an example, the first air intake area has a larger air intake space than the second air intake area, so that the air intake amount of the first air intake area is larger than that of the second air intake area, assuming that the air intake amount of the first air intake area is X, the air intake amount of the second air intake area is X-b, the air intake amount of the first side smoke inlet 310 below the first air intake area is Y, and the first side smoke inlet 310 below the second air intake area is larger due to the opening areas, for convenience of understanding, for example, the intake air amount of the first side smoke inlet 310 located below the second air intake zone may be simply set to Y + b without considering simultaneous intake of air through the second side smoke inlet 320, so that the intake air amount entering the first air intake zone from the first side smoke inlet 310 located below the first air intake zone is X + Y, and the intake air amount entering the second air intake zone from the first side smoke inlet 310 located below the second air intake zone is (X-b) + (Y + b) ═ X + Y, and thus it can be seen that intake air compensation can be achieved by changing the opening areas of the first side smoke inlet 310 and the second side smoke inlet 320 located below the first air intake zone and the second air intake zone, so that the intake air of the first air intake zone and the second air intake zone is more uniform, which is beneficial for avoiding generation of vortex and reducing intake noise.

In some embodiments of the present invention, a fan mounting structure 400 is also provided on the top wall of the box body 100.

It can be understood that the suction of lampblack absorber product is mainly produced by fan subassembly 600, fan subassembly 600 that adopts no can make the lampblack absorber product have the suction of variation in size, consequently install the case body 100 with different fan subassemblies 600 through fan mounting structure 400 in, thereby can conveniently realize the lampblack absorber product iteration and the development of different suction, it is therefore visible, utilize the fan mounting structure 400 that sets up at case body 100 roof can further improve the commonality of lampblack absorber wind cabinet case, make the lampblack absorber case can use with the lampblack absorber product adaptation of different suction and style.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. The utility model provides a lampblack absorber bellows box that can be general which characterized in that includes:

the smoke collecting box comprises a box body (100), wherein the box body (100) is provided with a containing cavity, the bottom of the side wall of the box body (100) is used for being connected with a smoke collecting hood (700), and the bottom surface of the box body (100) is provided with a lower smoke inlet (200) communicated with the containing cavity;

the side smoke inlet structure (300) is arranged at the bottom of the side walls of the two sides of the box body (100), and the side smoke inlet structure (300) is communicated with the containing cavity.

2. A range hood cabinet case that can be used universally according to claim 1, characterized in that: side advances the mouth structure (300) and includes that a plurality of first sides advance mouth (310) and a plurality of second side advances mouth (320), case body (100) are the cuboid form, and are a plurality of first side advances mouth (310) and all sets up the lateral wall bottom of case body (100) one side is a plurality of second side advances mouth (320) and all sets up the lateral wall bottom of the relative one side of case body (100).

3. A range hood cabinet case that can be used universally according to claim 2, characterized in that: the box body (100) comprises a frame body and a top plate (110), the top plate (110) is covered and arranged at one end of the frame body, the other end of the frame body forms the lower smoke inlet (200), the frame body comprises a face shell (120) and a back plate (130), the face shell (120) comprises a front plate and a left side plate and a right side plate which are correspondingly arranged at the left side and the right side of the front plate, the back plate (130) is respectively connected with the left side plate and the right side plate, the first side smoke inlet (310) is formed in a plurality of positions at the bottom of the left side plate, and the second side smoke inlet (320) is formed in the bottom of the right side plate.

4. A range hood cabinet case that can be used universally according to claim 3, characterized in that: the first side smoke inlets (310) are arranged along the bottom edge of the left side plate, and at least two first side smoke inlets (310) in the first side smoke inlets (310) have decreasing opening areas along the direction departing from the back plate (130).

5. A range hood cabinet case that can be used universally according to claim 3, characterized in that: the bottom edge of the face shell (120) and/or the back plate (130) is provided with a bevel edge part.

6. A range hood fan cabinet box that can be general according to claim 5, characterized by: the angle of the beveled portion relative to the horizontal is in the range of 5 ° to 15 °.

7. A range hood, characterized by comprising a range hood cabinet box according to claim 1.

8. A range hood according to claim 7, characterized in that: the box body (100) is cuboid, and the distance D1 between the fan assembly (600) and the front side wall of the box body (100) is greater than the distance D2 between the fan assembly (600) and the rear side wall of the box body (100).

9. A range hood according to claim 8, characterized in that: the side smoke inlet structure (300) comprises a plurality of first side smoke inlets (310) and a plurality of second side smoke inlets (320), wherein the plurality of first side smoke inlets (310) are arranged at the bottom of the left side wall of the box body (100) and are arranged along the edge of the bottom of the left side wall of the box body (100), the plurality of second side smoke inlets (320) are arranged at the bottom of the right side wall of the box body (100) and are arranged along the edge of the bottom of the right side wall of the box body (100), a first air inlet area is defined between the fan assembly (600) and the front side wall of the box body (100), a second air inlet area is defined between the fan assembly (600) and the rear side wall of the box body (100), the opening area of the first side smoke inlets (310) below the first air inlet area is smaller than the opening area of the first side smoke inlets (310) below the second air inlet area, the opening area of the second side smoke inlet (320) below the first air inlet area is smaller than that of the second side smoke inlet (320) below the second air inlet area.

10. A range hood according to claim 8, characterized in that: and the top wall of the box body (100) is also provided with a fan mounting structure (400).

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