CN213777848U - Smoke exhaust ventilator - Google Patents

Abstract

The utility model provides a range hood, which relates to the technical field of oil fume purification equipment and comprises a fume collecting hood and a fresh air purification component arranged on the fume collecting hood; the fresh air purification assembly comprises a box body, a fresh air fan and a filtering piece, wherein the fresh air fan and the filtering piece are arranged in the box body; the filter piece is arranged close to the first air inlet and the second air inlet and is used for filtering air flow entering from the first air inlet and/or the second air inlet; the box body and/or the smoke collecting hood are/is provided with an air outlet. The technical problem that the whole kitchen environment is closed and the comfort of a cooker is poor in the prior art is solved.

Description

Smoke exhaust ventilator

Technical Field

The utility model belongs to the technical field of oil smoke clarification plant technique and specifically relates to a range hood is related to.

Background

When a kitchen is cooked, the generated oil fume not only pollutes the indoor environment, but also influences the health of people. In order to remove the oil smoke, a range hood is usually adopted to absorb and discharge the oil smoke. However, in actual operation, due to factors such as the limit of the suction force of the range hood, a part of the oil smoke escapes, and in order to avoid the influence of the airflow on the oil smoke and the flame of the cooker, the kitchen environment is relatively closed during operation, which affects the use experience of a user.

Generally, the stove combustion not only consumes oxygen in a kitchen, but also generates hot smoke, and simultaneously cooks to generate a large amount of hot oil smoke and unpleasant peculiar smell. The traditional range hood can only exhaust most of oil smoke and peculiar smell, so the whole kitchen environment is uncomfortable for cookers.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a range hood to alleviate the whole kitchen environment ratio that exists among the prior art and seal, make the relatively poor technical problem of culinary art person's comfort level.

The utility model provides a range hood, include: the device comprises a smoke collecting hood and a fresh air purifying assembly arranged on the smoke collecting hood; the fresh air purification assembly comprises a box body, a fresh air fan and a filter piece, wherein the fresh air fan and the filter piece are arranged in the box body; the filter element is arranged close to the first air inlet and the second air inlet and is used for filtering air flow entering from the first air inlet and/or the second air inlet; and an air outlet is arranged on the box body and/or the smoke collecting cover.

Furthermore, the sizes of the openings of the first air inlet and the second air inlet are adjustable.

Furthermore, the fresh air purification assembly also comprises a wind shield and a driving mechanism in transmission connection with the wind shield; the wind shield is positioned in the box body; the driving mechanism is mounted on the box body and used for driving the wind shield to move so as to adjust the sizes of the openings of the first air inlet and the second air inlet.

Further, it includes the filter screen to filter, the filter screen is located the deep bead with between the new trend fan.

Furthermore, a first fresh air outlet and a second fresh air outlet are respectively arranged on the side plates on the left side and the right side of the smoke collecting hood.

Further, the curb plate of the left and right sides of collection petticoat pipe from top to bottom respectively to the central point of collection petticoat pipe puts the slope setting, and with the roof of collection petticoat pipe is the contained angle setting.

Furthermore, an oil net mounting port for mounting an oil net is arranged on a bottom plate of the smoke collecting hood; the bottom plate comprises a first partition plate positioned on one side of the oil screen mounting opening and a second partition plate positioned on the other side of the oil screen mounting opening; the first partition plate is obliquely arranged from the oil screen mounting port to the adjacent side plate, and forms a first flow guide space with the side plate; the second partition plate is obliquely arranged from the oil net mounting port to the adjacent side plate, and forms a second flow guide space with the side plate.

Furthermore, the range hood adopts a top suction type range hood; the range hood also comprises a main machine, and the main machine is arranged above the fume collecting hood; the main machine comprises a casing and a fan of the range hood arranged in the casing; the casing with collection petticoat pipe intercommunication, be equipped with the casing check valve on the casing.

Further, the fresh air fan comprises a fresh air impeller and a fresh air volute; the smoke machine fan comprises a smoke machine impeller, a smoke machine volute and a rotary motor; the fresh air impeller and the smoke machine impeller are in transmission connection with the rotary motor.

Furthermore, a flow guide channel is arranged between the box body and the shell; the diversion channel at least has a first outlet and a second outlet, the first outlet is communicated with the outside, and the second outlet is communicated with the smoke collecting hood.

Furthermore, a third fresh air outlet is arranged on the machine shell, and the distance between the third fresh air outlet and the top plate of the fume collecting hood ranges from 0mm to 100 mm.

Has the advantages that:

the utility model provides a range hood, including collection petticoat pipe and the new trend purification subassembly of locating collection petticoat pipe, wherein, the new trend purification subassembly includes the box, all locate the new trend fan in the box and filter the piece, at range hood oil smoke exhaust during operation, can open the new trend fan, because be equipped with first air intake and second air intake on the box, therefore, air currents such as outdoor new trend and indoor inner loop can get into the box, and filter corresponding air current back through filtering the piece, provide outdoor new trend for the kitchen, perhaps be the new trend after indoor purification, thereby can make the culinary art person can obtain better experience and feel and the comfort level.

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 embodiments or the technical solutions in 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 for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a range hood according to an embodiment of the present invention, wherein arrows shown in the diagram are gas flow paths;

fig. 2 is a second schematic structural diagram of the range hood according to the embodiment of the present invention, wherein arrows shown in the diagram are gas flow paths;

fig. 3 is a third schematic structural diagram of the range hood according to the embodiment of the present invention, wherein arrows shown in the drawings are gas flow paths;

fig. 4 is a partial cross-sectional view of a range hood according to an embodiment of the present invention, wherein arrows shown in the figure are gas flow paths;

fig. 5 is a second partial cross-sectional view of the range hood according to the embodiment of the present invention, wherein arrows shown in the figure are gas flow paths;

fig. 6 is a schematic structural diagram of a smoke collecting hood in the range hood provided by the embodiment of the present invention;

fig. 7 is a schematic structural diagram of a fume collecting hood in a range hood according to an embodiment of the present invention, in which the arrows shown in the diagram are gas flow paths, and the top plate is not shown;

fig. 8 is a schematic structural diagram of the range hood provided by the embodiment of the present invention, which does not show the casing.

Icon:

100-a smoke collecting hood; 110-a first fresh air outlet; 120-a second fresh air outlet; 131-oil net mounting port; 132-a first separator; 133-a second separator; 140-a top plate;

200-fresh air purification component; 210-a box body; 220-fresh air fan; 230-a filter screen; 211-a first air inlet; 212-a second air inlet; 213-fresh air check valve; 214-a third fresh air outlet; 221-fresh air impeller; 222-a fresh air volute; 241-wind deflector; 242-a push rod motor;

300-a host; 310-a housing; 311-fourth fresh air outlet; 321-a smoke machine impeller; 322-a rotary electric machine;

400-a flow guide channel;

500-case check valve;

610-a bearing seat; 620-bearing; 630-a connecting shaft;

700-oil net.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The present embodiment provides a range hood, as shown in fig. 1 to 4, the range hood includes a smoke collecting hood 100 and a fresh air purifying assembly 200 disposed on the smoke collecting hood 100; the fresh air purification assembly 200 comprises a box body 210, a fresh air fan 220 and a filter piece, wherein the fresh air fan 220 and the filter piece are arranged in the box body 210, and a first air inlet 211 and a second air inlet 212 are formed in the box body 210; the filter member is disposed near the first inlet 211 and the second inlet 212, and is used for filtering the airflow entering from the first inlet 211 and/or the second inlet 212; the box body 210 and/or the smoke collecting hood 100 are provided with air outlets.

The range hood that this embodiment provided, including collection petticoat pipe 100 and the new trend purification subassembly 200 of locating collection petticoat pipe 100, wherein, new trend purification subassembly 200 includes box 210, all locate new trend fan 220 and filter the piece in box 210, at range hood oil extraction cigarette during operation, can open new trend fan 220, because be equipped with first air intake 211 and second air intake 212 on the box 210, therefore, air currents such as outdoor new trend and indoor inner loop can get into box 210, and filter corresponding air current through filtering the piece after, provide outdoor new trend for the kitchen, or be the new trend after indoor purification, thereby can make the culinary art person can obtain better experience and feel and the comfort level.

The first air inlet 211 can be connected to the outside to allow fresh air to enter the box 210; the second air inlet 212 is connected to the indoor space to allow the indoor circulating air to flow into the case 210.

In this embodiment, the opening sizes of the first air inlet 211 and the second air inlet 212 are adjustable, so that different outdoor fresh air volume and kitchen indoor air volume can be matched, outdoor fresh air is provided for a kitchen, or indoor purified fresh air or mixed fresh air of the outdoor fresh air and the kitchen indoor purified fresh air is provided, and a user can obtain better experience and comfort.

Specifically, the installation position of the box 210 on the smoke collecting hood 100 can be selected according to the type of the range hood, and the like. The range hood in this embodiment is a ceiling-mounted range hood, and the box 210 may be mounted above the fume collecting hood 100, specifically on the top plate 140 of the fume collecting hood 100.

The filter screen 230 in this embodiment can be used for filtering indoor air and purifying outdoor air, and of course, includes a form for filtering the two types of air. Specifically, the filter screen 230 may be used to filter PM2.5 and may absorb odor.

Referring to fig. 4 or 5, a fresh air check valve 213 is disposed at the first air inlet 211, and the fresh air check valve 213 is communicated with the outside through a pipeline. Alternatively, the second air inlet 212 may be a plurality of strip-shaped holes formed at the top end of the box 210.

As shown in fig. 3, the box 210 is further provided with a third fresh air outlet 214.

Further, with continued reference to fig. 4 or fig. 5, the fresh air purifying assembly 200 further includes a wind shielding plate 241 and a driving mechanism in transmission connection with the wind shielding plate 241; the wind shield 241 is located inside the case 210; the driving mechanism is installed on the box 210, and the driving mechanism is used for driving the wind shield 241 to move so as to adjust the sizes of the openings of the first wind inlet 211 and the second wind inlet 212.

Alternatively, the drive mechanism may employ a push rod motor 242.

Specifically, referring to fig. 4 again, fig. 4 shows that the wind shielding plate 241 blocks the second air inlet 212 completely, so that fresh air outside the room can enter the box 210; the push rod motor 242 is started, and after the push rod motor 242 drives the wind deflector 241 to move a distance leftwards, the wind deflector 241 can cover the first air inlet 211 of the cover part and the second air inlet 212 of the part, and at this time, outdoor fresh air and indoor internal circulation air can be ensured to enter the box body 210; after the push rod motor 242 drives the wind shielding plate 241 to move leftwards continuously to completely block the first air inlet 211, at this time, it is ensured that indoor internal circulation air enters the box 210.

In this embodiment, the filtering member includes a filtering net 230, and the filtering net 230 is located between the wind shielding plate 241 and the fresh air fan 220 to ensure that the filtering net 230 can filter the air entering the box 210.

As shown in fig. 1, the first fresh air outlet 110 and the second fresh air outlet 120 are respectively provided on the side plates on the left and right sides of the fume collecting hood 100.

Further, the side plates on the left and right sides of the fume collecting hood 100 are respectively inclined from top to bottom toward the center of the fume collecting hood 100, and form an included angle with the top plate 140 of the fume collecting hood 100.

Referring to fig. 1, because the kitchen environment is relatively closed, when the range hood operates, a negative pressure area is formed around the range hood, which is not favorable for the smoking effect of the range hood. Under the suction effect of the fan of the cigarette machine, the side plates on the left side and the right side of the smoke collecting hood 100 are all obliquely arranged (namely, the first fresh air outlet 110 and the second fresh air outlet 120 are all obliquely arranged), and the fresh air continuously blown out from the two sides of the smoke collecting cavity is collected towards the air inlet of the smoke collecting hood 100, so that air flow flowing from outside to inside and with higher speed is formed. According to the Bernoulli equation principle, negative pressure is formed around the rapidly flowing air flow, and the oil smoke can be attracted to be gathered to the smoke collection cavity and then discharged by the range hood. In addition, the included angle between the plane of the first fresh air outlet 110 and the second fresh air outlet 120 and the top plate 140 of the fume collecting hood 100 is an acute angle, so that the influence of air blowing on the flame stability and the heat efficiency of the stove can be avoided.

As shown in fig. 6 and 7, the oil screen mounting port 131 for mounting the oil screen 700 is provided on the bottom plate of the smoke collecting cover 100; the bottom plate includes a first partition 132 at one side of the oil screen mounting port 131 and a second partition 133 at the other side of the oil screen mounting port 131; the first partition 132 is inclined from the oil screen mounting port 131 to the adjacent side plate, and forms a first flow guiding space with the side plate; the second partition 133 is inclined from the oil screen mounting port 131 to an adjacent side plate, and forms a second guide space with the side plate.

Referring to fig. 7, after a part of the gas flowing into the fume collecting hood 100 is blocked by the first partition 132, it flows out from the first fresh air outlet 110 through the first guide space; similarly, another portion of the air is blocked by the second partition 133 and then flows out from the second fresh air outlet 120 through the second guiding space.

As shown in fig. 1 and 8, the range hood adopts a ceiling-type range hood; the range hood also comprises a main machine 300, and the main machine 300 is arranged above the fume collecting hood 100; the main body 300 comprises a casing 310 and a smoke machine fan arranged in the casing 310; the housing 310 is communicated with the fume collecting hood 100, and a housing check valve 500 is provided on the housing 310.

As shown in fig. 4 and 8, the fresh air fan 220 includes a fresh air impeller 221 and a fresh air volute 222; the smoke machine fan comprises a smoke machine impeller 321, a smoke machine volute and a rotary motor 322; the fresh air impeller 221 and the smoke machine impeller 321 are in transmission connection with the rotary motor 322. The fresh air impeller 221 and the smoke machine impeller 321 share one rotary motor 322, so that the vibration and abnormal sound of the impellers can be avoided.

Specifically, as shown in fig. 8, a bearing seat 610 and a bearing 620 are arranged on the box body 210, the fresh air impeller 221 is connected with a connecting shaft 630, the connecting shaft 630 is coaxially connected with the bearing 620, one end of the connecting shaft 630 is connected with the fresh air impeller 221, and the other end is connected with the cigarette machine impeller 321.

Referring to fig. 8, a flow guiding channel 400 is disposed between the box 210 and the housing 310; the draft passage 400 has at least a first outlet communicating with the outside and a second outlet communicating with the smoke collecting hood 100.

Furthermore, a fourth fresh air outlet 311 is arranged on the machine shell 310, and the distance between the fourth fresh air outlet 311 and the top plate 140 of the fume collecting hood 100 is 0 mm-100 mm, so that the wind speed is about 0.2 m/s-0.5 m/s when the air is blown to the face area of a cook from the front side of the range hood, and the wind feeling is comfortable; in addition, the fresh and cool air can relieve the feeling of sultriness of people and improve the use experience of the kitchen.

The working process of the range hood is as follows:

during cooking in a kitchen, under the driving of the rotary motor 322, cooking oil smoke is collected by the smoke collecting hood 100, filtered by the oil screen 700 and thrown by the smoke machine impeller 321, and then discharged to a common flue from the shell check valve 500;

meanwhile, outdoor fresh air flows into the box body 210 from the second air inlet 212 and/or the fresh air check valve 213 (part of air flow enters from the second air inlet 212, or part of air flow enters from the fresh air check valve 213, or both the second air inlet 212 and the fresh air check valve 213 enter with air flow) under the power of the fresh air impeller 221, and is adsorbed and filtered by the filter screen 230, and then is collected by the fresh air volute 222; a part of the airflow in the fresh air volute 222 is blown out from the fourth fresh air outlet 311 along the diversion channel 400, and another part of the airflow flows downwards into the exhaust fume collecting hood 100 and is blown out from the first fresh air outlet 110 and the second fresh air outlet 120 after being blocked by the first partition plate 132 and the second partition plate 133.

In other embodiments, a portion of the airflow in the fresh air volute 222 flows downward into the exhaust fume collecting hood 100, and after being blocked by the first partition 132 and the second partition 133, the airflow is blown out from the first fresh air outlet 110 and the second fresh air outlet 120, and another portion of the airflow is blown out through the third fresh air outlet 214.

It should be noted that when the outdoor temperature is too high in summer and too low in winter, if the outdoor fresh air is introduced completely, the user will feel uncomfortable. In the embodiment, the air blocking plate 241 is adjusted by the push rod motor 242 to be fixed at any position; the wind shields 241 at different positions respectively control the sizes of the first air inlet 211 and the second air inlet 212, so that different outdoor fresh air volume and kitchen indoor air volume can be matched, partial outdoor fresh air is provided for a cooker, and the condition that the temperature of blown fresh air is too high or too low is avoided; referring to fig. 5, when the wind deflector 241 is located at the leftmost end, it is an internal circulation mode, when the wind deflector 241 is located at the rightmost end, it is a fresh air mode, and when the wind deflector 241 is located therebetween, it is a combination mode of fresh air and internal circulation. Integrate this function to range hood above, when summer outdoor temperature is too high, winter outdoor temperature crosses when low, the culinary art person is according to actual experience, through this function button, can select the new trend that is fit for oneself and the compound mode of inner loop to obtain the experience of preferred and feel.

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; although the present invention has been described in detail with reference to the foregoing embodiments, it should 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; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (11)

1. A range hood, comprising: the device comprises a smoke collecting hood (100) and a fresh air purifying assembly (200) arranged on the smoke collecting hood (100);

the fresh air purification assembly (200) comprises a box body (210), a fresh air fan (220) and a filter piece, wherein the fresh air fan (220) and the filter piece are arranged in the box body (210), and a first air inlet (211) and a second air inlet (212) are formed in the box body (210); the filter element is arranged close to the first air inlet (211) and the second air inlet (212) and is used for filtering air flow entering from the first air inlet (211) and/or the second air inlet (212);

an air outlet is arranged on the box body (210) and/or the smoke collecting cover (100).

2. The range hood according to claim 1, wherein the opening sizes of the first air inlet (211) and the second air inlet (212) are adjustable.

3. The range hood according to claim 2, wherein the fresh air purification assembly (200) further comprises a wind shield (241) and a driving mechanism in transmission connection with the wind shield (241);

the wind deflector (241) is positioned in the box body (210);

the driving mechanism is mounted on the box body (210), and is used for driving the wind shield (241) to move so as to adjust the opening sizes of the first air inlet (211) and the second air inlet (212).

4. The range hood of claim 3, wherein the filter comprises a filter screen (230), the filter screen (230) being located between the wind deflector (241) and the fresh air fan (220).

5. The range hood according to claim 1, wherein the fume collecting hood (100) is provided with a first fresh air outlet (110) and a second fresh air outlet (120) on the side plates on the left and right sides, respectively.

6. The range hood according to claim 5, wherein the side plates on the left and right sides of the fume collecting hood (100) are respectively arranged from top to bottom in an inclined manner towards the central position of the fume collecting hood (100) and form an included angle with the top plate (140) of the fume collecting hood (100).

7. The range hood according to claim 6, wherein the bottom plate of the fume collecting hood (100) is provided with an oil screen mounting port (131) for mounting an oil screen (600);

the bottom plate comprises a first partition plate (132) positioned on one side of the oil screen mounting opening (131) and a second partition plate (133) positioned on the other side of the oil screen mounting opening (131);

the first partition plate (132) is obliquely arranged from the oil screen mounting port (131) to the adjacent side plate, and forms a first flow guide space with the side plate;

the second partition plate (133) is obliquely arranged from the oil screen mounting port (131) to the adjacent side plate, and forms a second flow guide space with the side plate.

8. The range hood of any one of claims 1-7, wherein the range hood is a ceiling-mounted range hood;

the range hood also comprises a main machine (300), wherein the main machine (300) is arranged above the fume collecting hood (100);

the main machine (300) comprises a casing (310) and a smoke machine fan arranged in the casing (310);

the casing (310) with collection petticoat pipe (100) intercommunication, be equipped with casing check valve (500) on casing (310).

9. The range hood of claim 8, wherein the fresh air fan (220) comprises a fresh air impeller (221) and a fresh air volute (222);

the smoke machine fan comprises a smoke machine impeller (321), a smoke machine volute and a rotary motor (322);

the fresh air impeller (221) and the smoke machine impeller (321) are in transmission connection with the rotary motor (322).

10. The range hood according to claim 8, wherein a flow guide channel (400) is arranged between the box body (210) and the casing (310);

the guide passage (400) has at least a first outlet communicating with the outside and a second outlet communicating with the smoke collecting hood (100).

11. The range hood according to claim 10, wherein a fourth fresh air outlet (311) is provided on the housing (310), and a distance between the fourth fresh air outlet (311) and the top plate (140) of the fume collecting hood (100) is in a range of 0mm to 100 mm.

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