CN111059597A

CN111059597A - Smoke exhaust ventilator

Info

Publication number: CN111059597A
Application number: CN202010008246.9A
Authority: CN
Inventors: 任富佳; 郑桐福; 余国成; 孟君; 周海昕
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2020-01-03
Filing date: 2020-01-03
Publication date: 2020-04-24

Abstract

The invention provides a range hood, relates to the technical field of oil smoke discharge, and aims to solve the technical problem that the range hood in the prior art is provided with a plurality of fans to cause larger overall size. The range hood comprises a shell, wherein a plurality of fans are arranged in the shell, and air outlets of the fans are arranged in parallel along the front and back directions of the range hood; the air outlet department is equipped with the check valve, and a plurality of air outlets that connect in parallel set up all communicate with the check valve.

Description

Smoke exhaust ventilator

Technical Field

The invention relates to the technical field of oil smoke discharge, in particular to a range hood.

Background

One of the electrical appliances used for sucking and extracting oil smoke in a kitchen in the existing market is a range hood. The conventional range hood is mainly divided into an upper-suction range hood and a side-suction range hood. The traditional range hood is generally arranged above a kitchen range, and oil smoke flows upwards to enter a negative pressure region formed by the range hood during cooking and is then discharged out through the range hood.

The upper suction type range hood with the traditional structure has the advantages that the installation height is relatively far away from a pot, so that the oil smoke suction effect is not ideal enough, and the upper suction type range hood is easy to touch during use; the side-suction range hood is closer to the kitchen range than the negative pressure area of the upper-suction range hood, but the existing side-suction range hood has poor smoking effect.

Some side-draft range hoods can set up a plurality of fans side by side along the left-right direction in order to solve the problem that the smoking effect is relatively poor, can increase range hood's whole size like this obviously.

Disclosure of Invention

The invention aims to provide a range hood so as to relieve the technical problem that the range hood in the prior art is provided with a plurality of fans to cause larger overall size.

The invention provides a range hood, comprising: the range hood comprises a shell, wherein a plurality of fans are arranged in the shell, and air outlets of the fans are arranged in parallel along the front and back directions of the range hood; the air outlet department is equipped with the check valve, a plurality of parallelly connected setting the air outlet all with the check valve intercommunication.

Furthermore, the number of the fans is two, the two fans are symmetrically arranged along the left and right directions of the range hood and are arranged along the front and back directions of the range hood in a staggered manner.

The two air outlets of the fan are arranged close to each other in the front-back direction of the range hood, and the two air outlets share one check valve.

Furthermore, the air inlets of the two fans are arranged back to back, one of the air inlets of the two fans is opposite to the rear side face of the casing, and a space is reserved between the air inlet and the front side face.

The other air inlet of the fan is opposite to the front side face of the shell, and a space is reserved between the air inlet and the rear side face.

Furthermore, the range hood is a wall suction type range hood.

Further, the casing includes the fuselage body and the collection cigarette body that an organic whole set up, just the fuselage body with collect and form the wind channel that is used for the flue gas to flow in the cigarette body.

The fan set up in the fuselage body.

The smoke collection body comprises an air duct inlet, and the air duct inlet is communicated with the air duct, so that cooking smoke enters the air duct through the air duct inlet and is discharged by the fan.

Furthermore, the rear side face of the smoke collection body and the rear side face of the machine body are arranged in a coplanar manner, and the front side face of the smoke collection body is arranged in a manner of being recessed backwards relative to the front side face of the machine body and is used for enabling the accommodating space to form a space with an inverted L-shaped cross section.

Further, the thickness size range of fuselage body department is 160 ~ 220 mm.

Furthermore, a smoke baffle plate is arranged at the air duct inlet and is rotatably connected with the smoke collection body and used for opening or closing the air duct inlet.

When the smoke baffle is in an open state, a smoke gathering area can be formed between the smoke baffle and the smoke collection body.

Furthermore, a filter screen is arranged in the accommodating space and close to the air duct inlet, and the filter screen is inclined downwards from front to back.

The bottom of collection cigarette body is equipped with the oil cup, the fluid on the filter screen panel can drip to in the oil cup.

Furthermore, be equipped with the smoke deflector in the wind channel, the smoke deflector is located filter screen panel's below, smoke deflector, filter screen panel with enclose between the lateral wall of collection cigarette body and lead the cigarette region, lead the opening orientation in cigarette region the wind channel import, and along being close to the direction of wind channel import increases the setting gradually.

Has the advantages that:

when the range hood provided by the invention works, under the action of the fans, oil smoke generated by cooking enters the interior of the shell and is discharged through the check valve; moreover, because the air outlets of the fans of the range hood are arranged in parallel along the front-back direction of the range hood, cross overlapping parts can be formed among the fans to a certain extent, the arrangement can make the layout in the casing more compact on one hand and can relatively reduce the transverse size of the casing, on the other hand, under the structure, the air outlets of the fans are communicated with the check valve, namely the air outlets of the fans share one check valve, compared with the arrangement that the fans in the prior art are arranged side by side and the air outlets are arranged side by side, the range hood can make the area superposition of the air outlets of the fans consistent with the area of the check valve, so as to reduce or even avoid resistance loss caused by sudden change of area when oil smoke flows through the check valve, thereby being beneficial to the discharge of the oil smoke; by the aid of the range hood, the using effects of large air volume and large air pressure can be achieved, and the smoking effect of the range hood is further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a first structural schematic view of a range hood according to an embodiment of the present invention, wherein a smoke barrier is in an open state;

fig. 2 is a first structural schematic diagram of the range hood according to the embodiment of the present invention, wherein a part of the plate body is not shown;

FIG. 3 is a front view of FIG. 2;

fig. 4 is a right side view of the range hood according to the embodiment of the present invention showing the internal structure;

FIG. 5 is a schematic view of the installation structure of the range hood and the gas range;

fig. 6 is a schematic structural diagram of a range hood according to a second embodiment of the present invention, in which a part of the plate body is not shown.

Icon:

100-a fuselage body;

200-smoke collection body; 210-a duct inlet;

300-a fan; 400-a check valve; 500-smoke baffle; 600-a filter screen; 700-oil cup; 800-smoke guide plate; 900-gas range.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

The present embodiment provides a range hood, as shown in fig. 1 to 3, the range hood includes: a plurality of fans 300 are arranged in the shell, and air outlets of the fans 300 are arranged in parallel along the front and back direction of the range hood; the air outlet department is equipped with check valve 400, and a plurality of air outlets that connect in parallel set up all communicate with check valve 400.

When the range hood provided by the embodiment works, under the action of the plurality of fans 300, oil smoke generated by cooking enters the interior of the casing and is discharged through the check valve 400, and as the plurality of fans 300 are arranged, compared with the case that only one fan 300 is arranged in the prior art, the range hood can relatively improve the smoking effect; moreover, because the air outlets of the fans 300 of the range hood are arranged in parallel along the front-back direction of the range hood, cross overlapping parts can exist among the fans 300 to a certain extent, the arrangement can make the layout in the casing more compact on one hand, and can relatively reduce the transverse dimension of the casing, on the other hand, under the structure, the air outlets of the fans 300 are all communicated with the check valve, namely the air outlets of the fans 300 share one check valve 400, compared with the arrangement that the fans 300 are arranged side by side and the air outlets are arranged side by side in the prior art, the range hood can make the area overlapping of the air outlets of the fans 300 consistent with the area of the check valve 400, so as to reduce or even avoid the resistance loss caused by sudden change of the area when oil smoke flows through the check valve 400, and is beneficial to the discharge of the oil smoke; by the aid of the range hood, the using effects of large air volume and large air pressure can be achieved, and the smoking effect of the range hood is further improved.

Specifically, two fans 300 are provided, and the two fans 300 are symmetrically arranged along the left and right direction of the range hood and are arranged along the front and back direction of the range hood in a staggered manner; the air outlets of the two fans 300 are arranged close to each other along the front-back direction of the range hood, and the two air outlets share one check valve 400.

In this embodiment, as shown in fig. 2 or fig. 3, the air inlets of the two fans 300 are disposed opposite to each other, wherein the air inlet of one fan 300 is opposite to the rear side of the housing, and a space is reserved between the air inlet and the front side; the air inlet of the other fan 300 is opposite to the front side of the casing, and a space is reserved between the air inlet and the rear side, that is, the air inlet of one fan 300 is at the front side of the range hood, and the air inlet of one fan 300 is at the rear side of the range hood. The advantage of this arrangement is that the same two fans 300 can be used without distinguishing between the direction of rotation of the impeller and the motor in the fans 300.

It should be noted that, considering the overall size of the range hood and the multiple use in the household kitchen, it is preferable that the number of the fans 300 is two, and the types of the two fans 300 are the same, that is, both are volute type centrifugal fans, and the advantage of this setting is that it can ensure that the output pressures of the two fans 300 are equal, and the air volumes are the same, and the final air output of the range hood is the superposition of the two fans 300, thereby avoiding the occurrence of interference situations due to the different types of the fans 300.

In this embodiment, as shown in fig. 1, 2 or 3, the range hood is a wall-suction range hood.

The range hood provided by the embodiment can be in the following structural form.

(1) First structure form of range hood

With reference to fig. 1 and 2, in particular, the casing includes a body 100 and a smoke collection body 200 integrally arranged, and an air duct for smoke flowing is formed in the body 100 and the smoke collection body 200; the fan 300 is disposed in the body 100; the fume collecting body 200 includes a duct inlet 210, and the duct inlet 210 communicates with the duct such that cooking fumes enter the duct through the duct inlet 210 and are exhausted through the fan 300.

As shown in fig. 1, the portion having a large upper thickness dimension may be regarded as the body 100, and the portion having a small lower thickness dimension may be regarded as the smoke collecting body 200.

As shown in fig. 1 or fig. 2, the thickness dimension of the body 100 is greater than the thickness dimension of the fume collecting body 200, so as to realize the side-by-side installation of the plurality of fans 300 on the basis of reducing the overall dimension of the range hood.

Specifically, as shown in fig. 1, 2 or 4, the rear side surface of the smoke collection body 200 is disposed coplanar with the rear side surface of the body 100, and the front side surface of the smoke collection body 200 is recessed rearward relative to the front side surface of the body 100, so that the accommodation space forms a space with an inverted "L" shape in cross section.

It should be noted that the above-mentioned "front side" refers to the side facing the range or the user, and the rear side refers to the side facing away from the range or the user.

In this embodiment, the thickness dimension of the body 100 is in the range of 160 to 220mm, i.e., the dimension at P in fig. 4, and this arrangement can release the space above the gas range 900, thereby maximizing the use of the kitchen space.

In this embodiment, as shown in fig. 1 and fig. 4, a smoke barrier 500 is disposed at the air duct inlet 210, wherein the smoke barrier 500 is rotatably connected to the smoke collection body 200 and is used for opening or closing the air duct inlet 210; when the smoke barrier 500 is in the open state, a smoke gathering region can be formed between the smoke barrier 500 and the smoke collection body 200.

This range hood is at the during operation, and the oil smoke upwards flows under fan 300's effect, and the arrival is held together the cigarette region, gets into wind channel import 210 under the effect of holding together cigarette water conservancy diversion of keeping off cigarette board 500 simultaneously, should set up and can prevent that the oil smoke from probably rushing out negative pressure zone when great and diffusing away, play the effect that the oil smoke takes place to escape when preventing a large amount of oil smoke production, close after the use simultaneously and keep off cigarette board 500, still can guarantee range hood and not have the tainted of flavor phenomenon.

It should be noted that the smoke barrier 500 may be designed to be opened and closed automatically, that is, after the range hood stops working, the smoke barrier 500 is closed automatically, and when the range hood starts working, the smoke barrier 500 is opened automatically. The design in which the smoke barrier 500 is automatically opened or closed can be referred to in the art, which is not difficult for those skilled in the art to know. Alternatively, the smoke barrier 500 is configured to be opened and closed manually, and the structure configuration can be referred to in the prior art and will not be described in detail herein.

As shown in fig. 4, a filter screen 600 is disposed in the accommodating space and near the air duct inlet 210, and the filter screen 600 is disposed obliquely; the bottom of collection cigarette body 200 is equipped with oil cup 700, and fluid on the filter screen cover 600 can drip to in the oil cup 700. The filter screen 600 plays a role of filtering oil smoke, and oil drops on the filter screen 600 drop into the oil cup 700 under the action of gravity to collect the oil drops in the oil smoke.

Referring to fig. 4, a smoke guide plate 800 is disposed in the air duct, the smoke guide plate 800 is located below the filter mesh enclosure 600, a smoke guide area is defined by the smoke guide plate 800, the filter mesh enclosure 600 and the side wall of the smoke collection body 200, an opening of the smoke guide area faces the air duct inlet 210, and the smoke guide area is gradually enlarged along a direction close to the air duct inlet 210.

The opening of the smoke guide area is enlarged, so that more oil smoke can enter the smoke guide area conveniently; meanwhile, after the oil smoke enters from the air duct inlet 210, the oil smoke is guided upwards by the arrangement of the oil smoke guide plate 800, so that the oil smoke moves upwards at an accelerated speed, the original disordered oil smoke movement direction is improved, and the smoke absorption effect of the range hood is relatively improved.

The working process of the range hood is as follows:

during operation, produce the negative pressure in wind channel import 210 department, the oil smoke that the culinary art produced is inhaled in the accommodation space, makes originally disorderly oil smoke direction of motion obtain improving through smoke deflector 800 for the oil smoke upwards moves then, reachs a plurality of fans 300 department through filter screen cover 600, and acceleratees through a plurality of fans 300 of parallelly connected, is discharged after through check valve 400.

In this embodiment, fig. 5 is a schematic structural diagram of the range hood and the gas stove 900 in an installation state, and as can be seen from fig. 5, in the range hood, the space above the gas stove 900 is relatively abundant, so that the space above the gas stove 900 can be fully utilized; in addition, the structure enables the air duct inlet 210 to be close to the table top of the gas stove 900, the negative pressure area completely covers the oil smoke generation area during cooking, oil smoke is prevented from escaping, and a good smoking effect is achieved.

(2) Second structure form of range hood

The range hood with the structure form is different from the range hood with the first structure form in that: the integral structure of the air inlet and the air outlet are different from each other and the position of the air inlet is different.

In a second structural form of the range hood, with reference to fig. 1 and 6, the body 100 and the smoke collection body 200 are integrated into a whole, called a main body of the range hood, the air duct inlet 210 is disposed on a front plate located in front of the main body of the range hood, and a part of the air duct inlet 210 is located below the fan 300; the range of the height dimension H of the cigarette machine main body is 300-700 mm.

The arrangement ensures that the range hood omits a smoke collecting hood part of the existing side-draft range hood, realizes the integration of the existing smoke hood part (a part for installing a fan) and the existing smoke collecting hood part, and ensures that the overall structure of the side-draft range hood is relatively compact; through the structure setting, the height dimension H of the range hood main body is controlled to be 300-700 mm to the maximum extent, the dimension of the range hood main body is greatly reduced, particularly the height dimension H of the range hood main body, and therefore the overall size of the range hood is effectively reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A range hood, comprising: the range hood comprises a shell, wherein a plurality of fans (300) are arranged in the shell, and air outlets of the fans are arranged in parallel along the front and back direction of the range hood;

the air outlet department is equipped with check valve (400), a plurality of parallelly connected setting the air outlet all with check valve (400) intercommunication.

2. The range hood according to claim 1, wherein the number of the fans (300) is two, and the two fans (300) are symmetrically arranged along the left-right direction of the range hood and are arranged along the front-back direction of the range hood in a staggered manner;

the air outlets of the two fans (300) are arranged close to each other in the front-back direction of the range hood, and the two air outlets share one check valve.

3. The range hood according to claim 2, wherein the air inlets of the two fans (300) are arranged opposite to each other, wherein the air inlet of one of the fans (300) is opposite to the rear side of the housing, and a space is reserved between the air inlet and the front side; the other air inlet of the fan (300) is opposite to the front side face of the shell, and a space is reserved between the air inlet and the rear side face.

4. The range hood of any one of claims 1-3, wherein the range hood is a wall-mounted range hood.

5. The range hood according to claim 4, wherein the housing comprises a body (100) and a smoke collection body (200) which are integrally arranged, and an air duct for smoke flowing is formed in the body (100) and the smoke collection body (200);

the fan (300) is arranged in the machine body (100);

the smoke collection body (200) comprises a wind channel inlet (210), and the wind channel inlet (210) is communicated with the wind channel, so that cooking smoke enters the wind channel through the wind channel inlet (210) and is discharged through the fan (300).

6. The range hood according to claim 5, wherein the rear side of the smoke collection body (200) is coplanar with the rear side of the body (100), and the front side of the smoke collection body (200) is recessed rearward relative to the front side of the body (100) so that the air duct forms a space with an inverted L-shaped cross section.

7. The range hood according to claim 6, wherein the thickness of the body (100) is 160-220 mm.

8. The range hood according to claim 5, wherein a smoke baffle (500) is disposed at the air duct inlet (210), and the smoke baffle (500) is rotatably connected to the smoke collection body (200) and is used for opening or closing the air duct inlet (210);

when the smoke blocking plate (500) is in an opening state, a smoke gathering area can be formed between the smoke blocking plate (500) and the smoke collection body (200).

9. The range hood according to claim 8, wherein a filter screen (600) is disposed in the air duct and near the air duct inlet (210), and the filter screen (600) is inclined downward from front to back;

the bottom of collection cigarette body (200) is equipped with oil cup (700), fluid on filter screen panel (600) can drip to in the oil cup (700).

10. The range hood according to claim 9, wherein a smoke guide plate (800) is disposed in the air duct, the smoke guide plate (800) is located below the filter screen (600), a smoke guide area is defined by the smoke guide plate (800), the filter screen (600) and the side wall of the smoke collection body (200), and an opening of the smoke guide area faces the air duct inlet (210) and is gradually enlarged in a direction close to the air duct inlet (210).