CN218645618U

CN218645618U - Fume exhaust fan

Info

Publication number: CN218645618U
Application number: CN202222098313.8U
Authority: CN
Inventors: 任勇; 李�杰; 冯君; 李注佳
Original assignee: Foshan Jingwei Technology Co ltd
Current assignee: Foshan Jingwei Technology Co ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2023-03-17
Anticipated expiration: 2032-08-10

Abstract

The utility model discloses a range hood, which comprises a panel, an air collecting box and a shell, wherein the panel is connected to the front side of the shell and is connected with side baffles at two sides of the shell, the air collecting box is arranged in the shell and extends out of a top plate of the shell, a first connecting piece is arranged on the inner wall surface of a rear baffle of the shell, the inner side surface of the panel is connected with a second connecting piece, and the first connecting piece and the second connecting piece respectively support an air box bottom plate from the front end and the rear end of the air box bottom plate of the air collecting box and are connected with the air box bottom plate; compared with the prior art, the utility model discloses a range hood adopts less connecting piece just can be connected air-collecting box and casing and panel simultaneously, makes air-collecting box stable in the casing installation, reduces the noise that range hood during operation produced.

Description

Cooking fume exhauster

Technical Field

The utility model relates to a range hood technical field specifically, relates to a range hood.

Background

The range hood is arranged above the kitchen range and used for extracting and discharging oil smoke generated in the process of cooking food when a user cooks the food. The range hood comprises a shell, a panel and an air collecting box, wherein the panel is arranged on the front side of the shell and is connected with side baffles on two sides of the shell, the air collecting box is arranged in the shell and extends out of a top plate of the shell, when the range hood works, inlet air of a cooking environment enters the air collecting box from an air inlet of the panel, and if the air collecting box is insecure in the shell, noise and vibration generated by the inlet air are large, so that user experience is influenced; and if the connecting piece that adopts when air collecting box is connected with the casing is too much, in the in-process of using range hood for a long time, the vibration that the air inlet produced can make air collecting box and casing junction not hard up, influences range hood's life-span.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a range hood, it is used for solving above-mentioned technical problem.

The utility model provides a range hood, which comprises a pane, collection bellows and casing, the panel is equipped with the inlet scoop, the interior wind channel of inlet scoop intercommunication collection bellows, the roof of just stretching out the casing in the casing is located to collection bellows, be equipped with first connecting piece on the internal face of the backplate of casing, the medial surface of panel is connected with the second connecting piece, first connecting piece and second connecting piece are connected with the bellows bottom plate from the front end and the rear end support bellows bottom plate of collection bellows respectively.

According to the utility model discloses an embodiment, the cross-section of first connecting piece is the U type, including two vertical connection faces and the horizontally connect face of connecting two vertical connection faces, the vertical connection face that is close to the backplate of casing is connected with the backplate of casing, and the horizontally connect face is connected with the bellows bottom plate of album bellows.

According to one embodiment of the present invention, the bottom plate of the bellows comprises a horizontal section and an inclined section, the inclined section is inclined upward from the end connected with the horizontal section to the end far away from the horizontal section, and the horizontal connecting surface is connected with the horizontal section of the bottom plate of the bellows; and the horizontal section is provided with an oil leakage hole, and the distance from the oil leakage hole to the back plate of the air collecting box is matched with the width of the horizontal connecting surface.

According to an embodiment of the present invention, the second connecting member includes a first supporting section, a second supporting section and a connecting section, and the first supporting section, the second supporting section and the connecting section are connected in sequence; the first supporting section is matched with and supports the front side plate of the air box of the air collecting box; the second supporting section is matched with the air box bottom plate and supports the air box bottom plate; the bottom plate connecting part is arranged on the bottom plate of the air box and is connected with the connecting section.

According to the utility model discloses an embodiment, the medial surface of panel is connected with the third connecting piece, and the third connecting piece includes first connecting portion and second connecting portion, and first connecting portion extend along the width direction of panel and are connected with the panel, and the second connecting portion are connected in the upper end of first connecting portion and towards the curb plate before the bellows, and the curb plate is equipped with the position of dodging before the bellows, dodges the position and forms the inside arch of orientation collection bellows, and the second connecting portion stretch into the upper surface connection who dodges the position and with dodge the position.

According to the utility model discloses an embodiment, second connecting piece and third connecting piece structure as an organic whole, the first supporting segment of second connecting piece and the first connecting portion of third connecting piece both sides about connect structure as an organic whole.

According to the utility model discloses an embodiment is equipped with the wind channel via hole on the roof of casing, and the roof of casing is stretched out from the wind channel via hole to the collection bellows, and the edge of wind channel via hole upwards extends has the fourth connecting piece, and the fourth connecting piece is connected curb plate about the bellows preceding curb plate and the bellows of collection bellows.

According to the utility model discloses an embodiment still includes bellows sealing member, and the lower part of the preceding curb plate of bellows of album bellows is provided with rectangular type bellows air intake, and bellows sealing member locates before the bellows just around the bellows air intake between curb plate and the panel.

According to an embodiment of the utility model, the air collecting box is provided with an air box section and a fan containing section which are communicated with each other, the air box section and the fan containing section share one backboard plane, the air box section is arranged in the shell, and the fan containing section extends out of a top plate of the shell; an air exhaust fan is arranged in the fan accommodating section, and the angle range of the included angle between the air suction surface of the air exhaust fan and the back plate of the air collecting box is 20-30 degrees, so that an air inlet channel with a large bottom and a small top is formed.

According to the utility model discloses an embodiment, the cross sectional area of the linking department of bellows section and fan holding section takes place the sudden change, and the ratio of the wind channel area of the bellows section of sudden change department and fan holding section is 2.5-2.

Compared with the prior art, the utility model discloses a range hood has following advantage:

the utility model discloses a range hood adopts less connecting piece just can be connected air-collecting box and casing and panel simultaneously, makes the air-collecting box stable in the casing installation, reduces the noise that range hood during operation produced.

Drawings

Fig. 1 is a sectional view of the range hood of the present invention;

FIG. 2 is a schematic structural view of a wind-collecting box;

FIG. 3 is a schematic view of the housing;

fig. 4 is a sectional view of the range hood of the present invention in another direction;

FIG. 5 is an enlarged view of a portion of A in FIG. 4;

in the figure: 1. the air box comprises a panel, 11 air suction openings, 6 air collecting boxes, 61 air box sections, 62 fan accommodating sections, 63 air box bottom plates, 631 oil leakage holes, 632 bottom plate connecting parts, 64 air box front side plates, 641 avoiding positions, 7 air exhaust fans, 71 oil discharge holes, 9 casings, 91 first connecting pieces, 911 vertical connecting faces, 912 horizontal connecting faces, 92 second connecting pieces, 921 first supporting sections, 922 second supporting sections, 923 connecting sections, 93 third connecting pieces, 931 first connecting pieces, 932 second connecting parts, 94 air box sealing pieces, 95 air channel through holes, 96 fourth connecting pieces, a infiltration gaps

The utility model discloses realization and the advantage of function will combine the embodiment, will make further explanation with the attached drawing.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

It should be noted that all the directional indicators (such as up, down, left and right, front and back \8230;) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

For further understanding of the contents, features and effects of the present invention, the following embodiments are exemplified in conjunction with the accompanying drawings as follows:

the utility model discloses a range hood adopts less connecting piece just can be connected air-collecting box and casing and panel simultaneously, makes air-collecting box install stably in the casing, reduces the noise that range hood during operation produced. Please refer to fig. 1 and 4, the utility model discloses a range hood includes panel 1, air collecting box 6 and casing 9, panel 1 connects in the front side of casing 9 and is connected with the side shield of casing 9 both sides, panel 1 is equipped with inlet scoop 11, inlet scoop 11 communicates air collecting box 6's interior wind channel, air collecting box 6 locates in the casing 9 and stretches out the roof of casing 9, be equipped with first connecting piece 91 on the internal face of backplate of casing 9, panel 1's medial surface is connected with second connecting piece 92, first connecting piece 91 and second connecting piece 92 support bellows bottom plate 63 and are connected with bellows bottom plate 63 from the front end and the rear end of bellows bottom plate 63 of air collecting box 6 respectively. The utility model discloses a range hood, when casing 9 is installed to air-collecting box 6 in, air-collecting box 6 is connected through first connecting piece 91 with casing 9, and the rear end that first connecting piece 91 was followed upwards supports air-collecting box 6, air-collecting box 6 passes through second connecting piece 92 with panel 1 and is connected, and the front end that second connecting piece 92 was followed upwards supports air-collecting box 6, it is even to make air-collecting box 6 atress, the installation is stable in casing 9, when the oil smoke of culinary art environment got into air-collecting box 6 in, the vibration that the air inlet produced is smaller, and then the noise ratio of making range hood during operation is smaller, can improve user experience.

Please refer to fig. 1 and 4, the utility model discloses a range hood, first connecting piece 91's cross-section is the U type, including two vertical connection faces 911 and the horizontally connect face 912 of connecting two vertical connection faces 911, the vertical connection face 911 that is close to the backplate of casing 9 is connected with the backplate of casing 9, horizontally connect face 912 is connected with bellows bottom plate 63 of bellows 6. The first connecting piece 91 is a connecting piece independent of the housing 9, has higher strength and is easily connected with the rear baffle of the housing 9, when the air collecting box 6 is installed in the housing 9, the first connecting piece 91 which is already installed on the rear baffle of the housing 9 can also play a role in positioning the air collecting box 6, after the air collecting box bottom plate 63 of the air collecting box 6 is contacted with the horizontal connecting surface 912 of the first connecting piece 91, the air collecting box 6 is installed in place in the housing 9, and then the horizontal connecting surface 92 of the first connecting piece 91 is connected with the air collecting box bottom plate 63 of the air collecting box 6. In addition, the first connecting piece 91 has a U-shaped section, so that the strength is higher, the pressure capable of bearing the weight is higher, and the bellows bottom plate 63 is stably stressed when the bellows bottom plate 63 is supported upwards.

Referring to fig. 1 and 4, in the range hood of the present invention, the bellows bottom plate 63 includes a horizontal section and an inclined section, the inclined section is inclined upward from the end connected with the horizontal section to the end far away from the horizontal section, and the horizontal connecting surface 912 is connected with the horizontal section of the bellows bottom plate 63; the horizontal section is provided with an oil leakage hole 631, and the distance from the oil leakage hole 631 to the back plate of the air collecting box 6 is matched with the width of the horizontal connecting surface 912. In the process of long-term use of the range hood, a great amount of liquid mixed with oil, water and smoke is generated in the cavity of the air collecting box 6, and the liquid flows downwards along the front side plate 64 of the air box of the air collecting box 6, the left and right side plates of the air box and the back plate of the air collecting box 6 and is collected on the bottom plate 63 of the air box of the air collecting box 6; the air box bottom plate 63 of the air collecting box 6 is provided with an oil leakage hole 631, and the liquid collected on the air box bottom plate 63 can drip along the oil leakage hole 631. In order to allow the liquid collected on the bellows bottom plate 63 to be quickly discharged from the oil leakage holes 631, it is common that the bellows bottom plate 63 is disposed obliquely with the oil leakage holes 631 being disposed at the lowermost portion of the bellows bottom plate 63, so that the liquid collected on the bellows bottom plate 63 moves along the bellows bottom plate 63, flows from the side where the bellows bottom plate 63 is located at a high position to the side where the bellows bottom plate 63 is located at a low position, and finally drops from the oil leakage holes 631. When the bellows base plate 63 is connected to the first connecting member 91, the horizontal connecting surface 912 of the first connecting member 91 is connected to the bellows base plate 63, so that the bellows base plate 63 has at least one horizontal section adapted to the width of the horizontal connecting surface 912, which makes the connection between the bellows base plate 63 and the horizontal connecting surface 912 of the first connecting member 91 secure, and the bellows base plate 63 is inclined with respect to a part thereof, which makes the liquid collected on the bellows base plate 63 slide down along the inclined section and drip from the oil leakage hole 631. The oil leak hole 631 is arranged on the horizontal section of the bellows bottom plate 63, and the distance from the oil leak hole 631 to the back plate of the bellows 6 is matched with the width of the horizontal connection surface 912, so that when the oil leak hole 631 is machined on the bellows bottom plate 63, the downward flange of the oil leak hole 631 just plays a positioning role for the first connecting piece 91, and when the bellows bottom plate 63 is arranged on the horizontal connection surface 912 of the first connecting piece 91, the vertical connection surface of the back plate of the bellows 6, which is far away from the first connecting piece 91, is abutted to the downward flange of the oil leak hole 631.

Referring to fig. 3, in the range hood of the present invention, the side baffle of the casing 9 is provided with a folded edge parallel to the back plate of the wind collecting box 6, and two sides of the vertical connecting surface 911 connected to the back baffle of the casing 9 are respectively abutted and connected to the inner sides of the folded edges of the corresponding sides of the side baffle of the casing 9. The first connecting member 91 connects the rear baffle of the housing 9, the left and right side baffles of the housing 9, and the bellows bottom plate 63 of the bellows 6, so that the bellows 6 is fixed more firmly, and the connection of the bellows 6 in the housing 9 is loosened by avoiding the vibration caused by the intake air entering the bellows 6.

Referring to fig. 1, fig. 4 and fig. 5, in the range hood of the present invention, the second connecting member 92 includes a first supporting section 921, a second supporting section 922 and a connecting section 923, and the first supporting section 921, the second supporting section 922 and the connecting section 923 are connected in sequence; the first support section 921 is fitted to the air box front side plate 64 and supports the air box front side plate 64 of the air collection box 6; the second support section 922 is adapted to the bellows base plate 63 and supports the bellows base plate 63; the bottom plate connecting portion 632 is arranged on the air box bottom plate 63, and the bottom plate connecting portion 632 is connected with the connecting section 923. When the air-collecting box 6 is arranged in the housing 9, the rear end of the air-collecting box bottom plate 63 is supported by the horizontal connecting surface 912 of the first connecting piece 91, the front end of the air-collecting box bottom plate 63 is supported by the second supporting section 922 of the second connecting piece 92, meanwhile, the first supporting section 921 of the second connecting piece 92 supports and extrudes the front side plate 64 of the air-collecting box, so that the air-collecting box 6 is placed stably on the first connecting piece 91 and the second connecting piece 92, finally, the bottom plate connecting part 632 of the air-collecting box bottom plate 63 is connected with the connecting section 923 of the second connecting piece 92, so as to fixedly connect the air-collecting box bottom plate 63 with the second connecting piece 92, the air-collecting box 6 and the second connecting piece 92 are firmly connected, and the bottom plate connecting part 632 and the connecting section 923 are located at the bottom of the air-collecting box bottom plate 63, and the noise generated by air inlet can be reduced.

Referring to fig. 1, the utility model discloses a range hood, bellows front side board 64 and bellows bottom plate 63 are connected as an organic whole, by same sheet metal component stamping forming, and the uniformity is good, makes things convenient for first support section 921 and the second support section 922 of second connecting piece 92 to be connected with bellows front side board 64 and bellows bottom plate respectively to can reduce vibrations after connecting, reduce the noise that range hood during operation produced.

Please refer to fig. 1, fig. 4 and fig. 5, the utility model discloses a range hood, panel 1's medial surface is connected with third connecting piece 93, third connecting piece 93 includes first connecting portion 931 and second connecting portion 932, first connecting portion 931 extends and is connected with panel 1 along panel 1's width direction, second connecting portion 932 is connected in the upper end of first connecting portion 931 and towards bellows front side board 64, bellows front side board 64 is equipped with dodges the position 641, dodge the position 641 and form towards the inside arch of bellows 6, second connecting portion 932 stretches into dodge the position 641 and with dodge the upper surface connection of position 641. When the third connecting member 93 is connected to the air box front side plate 64 of the air collecting box 6, the second connecting portion 932 extends into the avoiding position 641 and is connected to the upper surface of the avoiding position 641, and the second connecting portion 932 supports the air collecting box 6 upward, thereby further reinforcing the connection relationship between the air collecting box 6 and the panel. The connection part of the third connecting member 93 and the air box front side plate 64 of the air collecting box 6 is in the avoiding position 641, so that the connection part cannot be arranged in the air collecting box 6, and the direction of inlet air in the air collecting box 6 cannot be influenced; further, since the escape position 641 escapes from the second connecting portion 932, the holding distance between the bellows front side plate 64 and the inner side of the panel 1 can be made constant.

Referring to fig. 4, the range hood of the present invention has the second connecting member 92 and the third connecting member 93 integrally formed, and the first supporting section 921 of the second connecting member 92 and the first connecting portion 931 of the third connecting member 93 are integrally connected to each other. That is to say that the first supporting section 921 of second connecting piece 92 and the first connecting portion 931 of third connecting piece 93 are on a panel body, the hole of dodging the bellows air intake of collection bellows 6 has been seted up on the panel body, the formation is turned over to the porose upper reason of second connecting portion 932, the second supporting section 922 and the linkage section 923 of second connecting piece 92 are formed by the lower edge bending type of panel, be connected the back with whole panel and panel 1's inboard like this, panel is just fixed in casing 9, when collection bellows 6 arranges the casing in, second connecting portion 932 stretches into and dodges position 641, then can be directly be connected bottom plate connecting portion 632 and the linkage section 923 of second connecting piece 92 of collection bellows 6, with second connecting portion 932 and the upper surface connection who dodges position 641, easy to assemble.

Referring to fig. 3, the utility model discloses a range hood is equipped with wind channel via hole 95 on the roof of casing 9, and wind-collecting box 6 stretches out the roof of casing 9 from wind channel via hole 95, and wind channel via hole 95's edge upwards extends has fourth connecting piece 96, and fourth connecting piece 96 is connected wind box front side board 64 and the wind box left and right sides curb plate of wind-collecting box 6. The bellows bottom plate 63 of the bellows collection 6 is upwards supported by the first connecting piece 91 and the second connecting piece 92, the side plate is upwards supported by the third connecting piece 93 before the bellows of the bellows collection 6, simultaneously the side plate has about the bellows 64 and the bellows of the bellows collection 6 to be connected with the roof of casing 9 through the fourth connecting piece 96, can make the connection of the bellows collection 6 in the casing 9 firmer, when the range hood starts, the bellows collection 6 is difficult to vibrate, can the noise reduction.

Referring to fig. 2 to 5, the range hood of the present invention further includes a bellows sealing member 94, the lower portion of the front side plate 64 of the bellows 6 is provided with a strip-shaped bellows inlet, and the bellows sealing member 94 is disposed between the front side plate 64 of the bellows and the panel 1 and surrounds the bellows inlet. After the panel 1 is connected to the left and right side barriers of the housing 9, the bellows seal 94 is pressed between the bellows front side plate 64 and the panel 1, and the bellows seal 94 can be further pressed when the third connection member 93 is connected to the bellows front side plate 64; the bellows seal 94 may function to reduce vibration and noise when cooking fumes enter the air collection bellows 6 through the bellows inlet. The bellows seal 94 is made of a material capable of elastic deformation, such as sponge or rubber, and is pressed and deformed when the panel 1 is connected to the front side plate 64 of the bellows.

Referring to fig. 3, in the range hood of the present invention, the wind collecting box 6 has a wind box section 61 and a fan containing section 62 which are communicated with each other, the wind box section 61 and the fan containing section 62 share a back plate plane, the wind box section 61 is disposed in the casing 9, and the fan containing section 62 extends out of the top plate of the casing 9; the air exhaust fan 7 is arranged in the fan accommodating section 62, and the angle range of the included angle between the air suction surface of the air exhaust fan 7 and the back plate of the air collecting box 6 is 20-30 degrees, so that an air inlet channel with a large lower part and a small upper part is formed. The utility model discloses a range hood, the face slope of induced drafting of air exhaust fan 7 sets up and towards the backplate of air collecting box 6, air exhaust fan 7 forms the negative pressure region at fan holding section 62, the oil smoke of culinary art environment enters air box section 61 back and flows and is discharged by air exhaust fan 7 to the negative pressure region that air exhaust fan 7 formed, the face of induced drafting of air exhaust fan 7 is not towards air collecting box 6's side, and towards air collecting box 6's backplate, the wind pressure relatively stable that forms in the length range of bellows air intake, the oil smoke in the culinary art environment can not be to air collecting box 6's side slope, bellows air intake air inlet air is stable, air exhaust fan 7 is better to the suction effect of oil smoke. In addition, when range hood starts, the oil smoke in the culinary art environment gets into bellows section 61 of bellows 6, then flow to fan holding section 62 along bellows section 61 of bellows 6, because the slope of fan 7 of airing exhaust sets up, the induced draft face of fan 7 of airing exhaust inclines downwards and towards the backplate of bellows 6, the induced draft face of fan 7 of airing exhaust forms an inlet air passageway big end down with the backplate of bellows 6 like this, by bellows section 61 behind the fan holding section 62 mobile air current entering inlet air passageway, the wind pressure increases, can be quick be inhaled away by fan 7 of airing exhaust, and because the volume of air inlet space is more and more little, the noise that can effectual reduction air current production is less

Referring to fig. 1 and 4, in the range hood of the present invention, the lower end of the volute of the exhaust fan 7 is provided with a tangent plane, an included angle between the tangent plane and a plane opposite to the air suction plane of the exhaust fan 7 is the same as an included angle between the air suction plane of the exhaust fan 7 and the back plate of the air collecting box 6, and when the exhaust fan 7 is disposed in the fan accommodating section 62, the tangent plane is attached and connected to the front side plate of the fan accommodating section 62; an oil discharge hole 71 is formed in the bottom of the volute of the exhaust fan 7, and the downward projection of the oil discharge hole 71 falls on the front side plate of the air box section 61 and is located above the air inlet of the air box. Because the exhaust fan 7 is obliquely arranged at the fan accommodating section 62, the air outlet of the exhaust fan 7 is connected with the upper part of the fan accommodating section 62 through a connecting part, and the lower end of the exhaust fan 7 needs to be provided with a surface connected with the front side plate of the fan accommodating section 62, so that the exhaust fan 7 can be firmly installed in the air collecting box 6; by arranging the tangent plane at the lower end of the volute of the exhaust fan 7, when the fan is obliquely arranged in the fan accommodating section 62, the tangent plane is just aligned with and attached to the front side plate of the fan accommodating section 62, and the tangent plane and the front side plate of the fan accommodating section 62 can be firmly connected through a connecting piece, so that the exhaust fan 6 is stably installed in the fan accommodating section 62. Because the air suction surface of the exhaust fan 7 is arranged obliquely, in the long-term working process of the exhaust fan 7, the air suction surface of the exhaust fan 7 can generate liquid mixed with oil, water and smoke, and liquid can also be generated in the air cavity of the exhaust fan 7, and the liquid can flow downwards along the wall surface of the volute of the exhaust fan 7, then is discharged from the oil discharge hole 71 at the bottom of the volute and drops downwards; the downward projection of the oil drain hole 71 is located on the front side plate of the bellows section 61 and on the portion above the air inlet of the bellows, so that the liquid dropping from the oil drain hole 71 at the bottom of the volute can drop on the front side plate of the bellows section 61 and flow downward along the front side plate of the bellows section 61, and the liquid dropping through the oil drain hole 71 at the bottom of the volute can be prevented from dropping outside the panel 1 through the air inlet of the bellows.

The utility model discloses a range hood, the cross sectional area of linking department of bellows section 61 and fan holding section 62 takes place the sudden change, and the ratio of the wind channel area of bellows section 61 and fan holding section 62 of sudden change department is 2.5-2. The air inlet of bellows and wind gap blows to behind the backplate of fan holding section 62, begins to flow to bellows section 61 under the effect of the fan 7 of airing exhaust, when flowing to the linking department of bellows section 61 and fan holding section 62, because the cross sectional area of linking department takes place the sudden change, and the cross sectional area of fan holding section 62 diminishes, the wind pressure grow, the velocity of flow of wind becomes fast, can make the quick fan 7 of airing exhaust of being taken away of the air current that gets into in fan holding section 62. In addition, because the air intake channel with a large lower part and a small upper part is formed between the air suction surface of the air exhaust fan 7 and the back plate of the air collecting box 6, when the air flow entering the fan accommodating section 62 enters the air intake channel, the air speed is faster and faster, and the noise generated by the air intake is silenced by the structure of the air intake channel, so that the noise of the range hood is reduced. The main function of the blower housing section 62 is to house the exhaust blower 7, the width of the blower housing section satisfies that the exhaust blower 7 can be obliquely arranged in the blower housing section, the front side plate of the blower housing section 61 is connected with the panel 1, the panel 1 is provided with an air inlet communicated with an air inlet of the blower housing, the air inlet is arranged along the width of the panel 1, so the width of the front side plate of the blower housing section 61 is adapted to the width of the panel 1, and is not smaller than the width of the cooking operation surface, so the width of the blower housing section 61 is usually 2 times to 2.5 times of the width of the blower housing section 62, so the blower housing section 62 can be provided with enough space to house the exhaust blower 7, and meanwhile, the front side plate of the blower housing section 61 is provided with enough width to adapt to the width of the cooking operation surface.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a range hood, includes panel (1), collection bellows (6) and casing (9), panel (1) is equipped with inlet scoop (11), inlet scoop (11) intercommunication the interior wind channel of collection bellows (6), collection bellows (6) are located just stretch out in casing (9) the roof of casing (9), its characterized in that: the rear baffle of the shell (9) is provided with a first connecting piece (91) on the inner wall surface, the inner side surface of the panel (1) is connected with a second connecting piece (92), and the first connecting piece (91) and the second connecting piece (92) support the air box bottom plate (63) from the front end and the rear end of the air box bottom plate (63) of the air collecting box (6) respectively and are connected with the air box bottom plate (63).

2. The range hood according to claim 1, wherein the first connecting member (91) has a U-shaped cross section, and comprises two vertical connecting surfaces (911) and a horizontal connecting surface (912) connecting the two vertical connecting surfaces (911), the vertical connecting surface (911) close to the rear baffle of the housing (9) is connected to the rear baffle of the housing (9), and the horizontal connecting surface (912) is connected to the bellows bottom plate (63) of the bellows (6).

3. The range hood of claim 2, wherein the bellows floor (63) comprises a horizontal section and an inclined section, the inclined section is inclined upward from an end connected with the horizontal section to an end away from the horizontal section, and the horizontal connection surface (912) is connected with the horizontal section of the bellows floor (63); and an oil leakage hole (631) is formed in the horizontal section, and the distance from the oil leakage hole (631) to the back plate of the air collecting box (6) is matched with the width of the horizontal connecting surface (912).

4. The range hood according to claim 1, wherein the second connector (92) comprises a first support section (921), a second support section (922) and a connection section (923), and the first support section (921), the second support section (922) and the connection section (923) are connected in sequence; the first supporting section (921) is matched with a front side plate (64) of the air box of the air collecting box (6) and supports the front side plate (64) of the air box; the second support section (922) is adapted to the bellows base plate (63) and supports the bellows base plate (63); be equipped with bottom plate connecting portion (632) on bellows bottom plate (63), bottom plate connecting portion (632) with linkage segment (923) are connected.

5. The range hood according to claim 4, wherein the front side plate (64) of the bellows and the bottom plate (63) of the bellows are integrally connected; the medial surface of panel (1) is connected with third connecting piece (93), third connecting piece (93) include first connecting portion (931) and second connecting portion (932), first connecting portion (931) are followed the width direction of panel (1) extends and with panel (1) is connected, second connecting portion (932) connect in the upper end of first connecting portion (931) and orientation curb plate (64) before the bellows, curb plate (64) are equipped with and dodge position (641) before the bellows, dodge position (641) and form the orientation the inside arch of collection bellows (6), second connecting portion (932) stretch into dodge position (641) and with dodge the upper surface connection of position (641).

6. The range hood according to claim 5, wherein the second connecting member (92) and the third connecting member (93) are an integral structure, and the left and right sides of the first supporting section (921) of the second connecting member (92) and the first connecting portion (931) of the third connecting member (93) are connected to form an integral structure.

7. The range hood according to claim 1, wherein an air duct through hole (95) is formed in a top plate of the housing (9), the air collecting box (6) extends out of the top plate of the housing (9) from the air duct through hole (95), a fourth connecting member (96) extends upwards from an edge of the air duct through hole (95), and the fourth connecting member (96) is connected with an air box front side plate (64) and air box left and right side plates of the air collecting box (6).

8. The range hood according to claim 1, further comprising a bellows seal (94), wherein a lower portion of the front side panel (64) of the bellows (6) is provided with an elongated bellows inlet, and the bellows seal (94) is disposed between the front side panel (64) and the panel (1) and surrounds the bellows inlet.

9. The range hood according to claim 1, wherein the air collecting box (6) has an air box section (61) and a fan accommodating section (62) which are communicated with each other, the air box section (61) and the fan accommodating section (62) share a back plate plane, the air box section (61) is arranged in the housing (9), and the fan accommodating section (62) extends out of a top plate of the housing (9); the air exhaust fan (7) is arranged in the fan containing section (62), and the angle range of the included angle between the air suction surface of the air exhaust fan (7) and the back plate of the air collecting box (6) is 20-30 degrees, so that an air inlet channel with a large lower part and a small upper part is formed.

10. The range hood according to claim 9, wherein the cross-sectional area of the junction of the bellows section (61) and the fan housing section (62) is changed abruptly, and the ratio of the duct areas of the bellows section (61) and the fan housing section (62) at the abrupt junction is 2.5-2.