CN216346485U - Fume exhaust fan - Google Patents

Abstract

The application discloses range hood relates to kitchen electrical equipment technical field, improves range hood's the effect of holding together the cigarette, reduces range hood and takes place the risk of oil smoke loss. The range hood of this application includes casing, fan and filter screen. The shell is provided with an air suction port and an air exhaust port, and an air duct is formed between the air suction port and the air exhaust port. The fan is arranged in the air duct, and the air flow introduced by the fan enters the air duct through the air suction port and is discharged from the air exhaust port. The filter screen is connected with the casing at the air suction port and is sunken towards the inside of the air duct. The range hood of the application is used for pumping away the oil smoke generated in the cooking process from the upper part of a stove.

Description

Fume exhaust fan

Technical Field

The application relates to the technical field of kitchen electrical equipment, in particular to a range hood.

Background

The range hood is a kitchen appliance for purifying kitchen environment, is usually installed above a kitchen stove, and can rapidly exhaust waste gas generated by combustion of the kitchen stove and oil smoke harmful to human bodies generated in a cooking process and discharge the waste gas and the oil smoke out of a room, so that kitchen pollution is reduced, and kitchen air is purified.

With the improvement of living standard of people, the range hood is widely applied, and the requirement of users on the oil smoke absorption effect of the range hood is higher and higher.

However, in the prior art, the smoke collecting effect of the range hood is not good, oil smoke dissipation is easy to occur, and the user experience is poor.

SUMMERY OF THE UTILITY MODEL

The application provides a range hood can improve range hood's the cigarette effect of holding together, reduces range hood and takes place the risk of oil smoke loss.

In order to achieve the purpose, the technical scheme is as follows:

a range hood comprises a casing, a fan and a filter screen. The shell is provided with an air suction port and an air exhaust port, and an air channel is formed between the air suction port and the air exhaust port. The fan is arranged in the air duct, and the air flow introduced by the fan enters the air duct through the air suction port and is discharged from the air exhaust port. The filter screen is in the suction port department with the casing is connected, and towards the wind channel is inside sunken.

In some embodiments, the filter screen is provided with an air inlet, and one side of the filter screen close to the air duct is provided with a first convex edge and a second convex edge. Each first convex edge corresponds to one air inlet hole, and is arranged at the edge of the corresponding air inlet hole in a surrounding manner; the second convex edge is arranged at the edge of the filter screen in a surrounding way.

In some embodiments, the air suction opening is polygonal, and the air inlet holes are strip-shaped air inlet holes. And the extension line of the long edge of the strip-shaped air inlet hole is perpendicular to the boundary of the air suction port.

In some embodiments, the air suction opening is circular, and the air inlet holes are strip-shaped air inlet holes. And the extension line of the long edge of the strip-shaped air inlet hole is perpendicular to the tangent line of the intersection point of the boundary of the air suction port.

In some embodiments, the bottom plate of the cabinet is disposed obliquely, and the suction port is disposed on the bottom plate. The first end of the bottom plate is provided with a first oil leakage hole, wherein the first end is the end of the bottom plate relatively far away from the exhaust port. In addition, the range hood further comprises an oil cup, wherein the oil cup is arranged on one side, far away from the exhaust port, of the bottom plate and is positioned at the first end of the bottom plate.

In some embodiments, an oil guide nozzle is arranged on one side of the second convex edge close to the oil cup.

In some embodiments, the range hood further includes a smoke collecting plate, and the smoke collecting plate is connected to the casing at the second end of the bottom plate and can rotate around the bottom plate to open or close the air suction port. Wherein the second end is the end of the bottom plate that is relatively closer to the exhaust port.

In some embodiments, the suction opening is a rectangular aperture and the filter screen comprises a first filter sub-network and a second filter sub-network. One end of the first filter subnet is connected with one long edge of the rectangular hole, and the other end of the first filter subnet is positioned in the air duct; one end of the second filter subnet is connected with the other long edge of the rectangular hole, and the other end of the second filter subnet is connected with one end of the first filter subnet positioned in the air duct.

In some embodiments, the casing includes a box body and a fume collecting hood connected to the box body, the box body is provided with the exhaust port, and the fume collecting hood is provided with the suction port. Wherein, collection petticoat pipe includes inner cover and dustcoat, the inner cover with the dustcoat all with the box is connected, just the inner cover is located in the dustcoat.

In some embodiments, the fan is a centrifugal fan.

In some embodiments, the centrifugal fan includes a volute and a centrifugal fan disposed within the volute. The volute is provided with an air inlet corresponding to the axial air inlet side of the centrifugal fan, an air outlet is arranged on one side, opposite to the air outlet, of the volute, and a second oil leakage hole is formed in one side, far away from the air outlet, of the volute.

The range hood further comprises an oil receiving nozzle, and the oil receiving nozzle is connected with the volute. The oil receiving nozzle is positioned on one side, far away from the air outlet, of the second oil leakage hole, and one end, close to the oil cup, of the oil receiving nozzle is arranged in a staggered mode with the air suction port in the vertical direction. Wherein, the end of the oil receiving nozzle close to the oil cup is the end of the oil receiving nozzle relatively far away from the exhaust port.

When the range hood provided by the embodiment of the utility model works, the fan is started, and the gas in the air duct flows from the air suction port to the air exhaust port of the range hood, so that the air suction port of the range hood forms a negative pressure region. Based on the structure, when the range hood works, the oil smoke outside the range hood flows towards the direction of the air suction port; and, because the filter screen that sets up in suction port department is sunken towards the wind channel in, consequently, when the outer oil smoke of range hood flows to suction port department, the oil smoke gathers together to the middle part of filter screen for the suction port department of range hood can form the effect of gathering together the cigarette, has reduced the risk of oil smoke loss, has improved range hood's oil absorption cigarette effect, has promoted user experience.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a range hood according to some embodiments of the present disclosure;

fig. 2 is a schematic view of an internal structure of a range hood according to some embodiments of the present disclosure;

fig. 3 is a cross-sectional view of a range hood provided in accordance with some embodiments of the present application;

fig. 4 is a schematic structural diagram of a filter screen according to some embodiments of the present disclosure;

FIG. 5 is an enlarged view of a filter screen provided in accordance with certain embodiments of the present disclosure at an oil guide nozzle;

fig. 6 is a schematic structural view of a range hood provided in some embodiments of the present application;

FIG. 7 is an enlarged view of a range hood oil guide nozzle according to some embodiments of the present disclosure;

FIG. 8 is a top view of a filter screen provided in some embodiments of the present application;

FIG. 9 is a schematic structural view of a blower and a grease receiving nozzle provided in some embodiments of the present disclosure;

fig. 10 is a schematic structural view of a range hood provided in some embodiments of the present application;

fig. 11 is a schematic structural diagram of a range hood according to some embodiments of the present application.

Reference numerals:

100-range hood; 101-an operating switch; 102-a lighting lamp; 1-a machine shell; 11-suction port; 12-an exhaust port; 13-an air duct; 14-a base plate; 141-a first end; 142-a second end; 15-a box body; 16-a smoke collecting hood; 161-inner cover; 162-a housing; 2-a fan; 21-a volute; 211-air intake; 212-an air outlet; 22-centrifugal fan; 3, filtering the filter screen; 31-air inlet holes; 32-a first convex edge; 33-a second ledge; 331-oil guiding nozzle; 34-a first filtering subnetwork; 35-a second filtering subnetwork; 36-a connecting plate; 4-oil cup; 5-oil guide plate; 6-a cigarette collecting plate; 7-connecting an oil nozzle; 8-a non-return valve; 9-electric appliance box.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

It should be noted that in practical applications, due to the limitation of the precision of the device or the installation error, the absolute parallel or perpendicular effect is difficult to achieve. In the present application, the description of "perpendicular", "parallel" or "same direction" is not an absolute limitation, but means that a perpendicular or parallel structural arrangement can be achieved within a preset error range, and a corresponding preset effect is achieved, so that the technical effect of limiting the features can be maximally achieved, and the corresponding technical scheme is convenient to implement and has high feasibility. For example, "perpendicular" includes absolute perpendicular and approximately perpendicular, where an acceptable deviation from approximately perpendicular may also be within 5 °, for example. "parallel" includes absolute parallel and approximately parallel, wherein an acceptable deviation from approximately parallel may also be, for example, within 5 °. "co-directional" includes absolute co-directional and approximately co-directional, wherein an acceptable deviation range for approximately co-directional may also be, for example, a deviation within 5 °.

In the description of the present application, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. 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 application can be understood by those of ordinary skill in the art as appropriate.

In the embodiments of the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

Referring to fig. 1, 2 and 3, an embodiment of the present application provides a range hood 100, where the range hood 100 includes a casing 1, a fan 2 and a filter screen 3.

The housing 1 is provided with an air inlet 11 and an air outlet 12, and an air duct 13 is formed between the air inlet 11 and the air outlet 12. The fan 2 is disposed in the air duct 13, and the air flow introduced by the fan 2 enters the air duct 13 through the air suction port 11 and is discharged from the air discharge port 12. The filter net 3 is connected to the cabinet 1 at the suction port 11 and is recessed toward the air passage 13.

It should be noted that, the specific connection manner between the filter screen 3 and the casing 1 may be set according to the needs of actual situations, for example, the connection manner may be welding, bonding, screwing, and the like, and the disclosure is not limited specifically herein.

In the range hood 100 of the embodiment of the utility model, when the range hood 100 works, the fan 2 is started, and the gas in the air duct 13 flows from the suction port 11 of the range hood 100 to the exhaust port 12, so that the suction port 11 of the range hood 100 forms a negative pressure region. Based on this, when the range hood 100 works, the oil smoke outside the range hood 100 flows toward the air suction port 11; moreover, as the filter screen 3 disposed at the air suction port 11 is recessed toward the air duct 13, when the oil smoke outside the range hood 100 flows to the air suction port 11, the oil smoke gathers to the middle of the filter screen 3, so that the air suction port 11 of the range hood 100 can form an effect of gathering the oil smoke, thereby reducing the risk of oil smoke dissipation, improving the oil smoke absorption effect of the range hood 100, and improving the user experience.

Referring to fig. 3, 4 and 5, in some embodiments, the filter screen 3 is provided with air inlet holes 31, and a side of the filter screen 3 close to the air duct 13 is provided with a first convex edge 32 and a second convex edge 33. Each first convex edge 32 corresponds to one air inlet hole 31, and each first convex edge 32 is arranged around the edge of the corresponding air inlet hole 31; the second convex edge 33 is disposed around the edge of the filter screen 3. It can be understood that after the oil smoke enters the air duct 13 through the air inlet holes 31, part of the oil smoke will be condensed to form grease, and will be adsorbed on the filter screen 3. At this moment, through setting up first protruding edge 32 and the protruding edge 33 of second, can inject the grease that adsorbs on filter screen 3 and be close to one side in the wind channel 13 between first protruding edge 32 and the protruding edge 33 of second, prevent that the grease from the drop of fresh air inlet 31 to prevent the food in grease pollution top of a kitchen range, pan and the pan, improve user's use and experience.

Referring to fig. 4 and 5, in some embodiments, the first protruding edge 32 is formed by bending the edge of the air inlet hole 31 toward the inside of the air duct 13, and the second protruding edge 33 is formed by bending the edge of the filter web 3 toward the inside of the air duct 13, that is, the first protruding edge 32 and the second protruding edge 33 are integrally formed with the filter web 3. With this kind of mode setting, production simple process easily realizes, filter screen 3's intensity is high moreover, does not have the joint gap, can reduce the risk that the grease takes place the seepage. In other embodiments, the first protruding edge 32 and the second protruding edge 33 are formed by bending flat steel, and are connected to the filter screen 3 by welding.

Referring to fig. 1 and 4, in some embodiments, the suction port 11 is polygonal and the filter net 3 is a concave structure. The shape of the filter screen 3 may be a polygonal pyramid, a polygonal frustum, or other shapes, and the disclosure is not limited in detail.

Referring to fig. 1, 3, 7 and 8, the suction opening 11 is exemplarily a rectangular hole, and the filter screen 3 includes a first filter sub-network 34 and a second filter sub-network 35. Wherein, one end of the first filter subnet 34 is connected with one long edge of the rectangular hole, and the other end is positioned in the air duct 13; one end of the second filter subnetwork 35 is connected with the other long side of the rectangular hole, and the other end is connected with one end of the first filter subnetwork 34 located in the air duct 13. By the arrangement, the filter screen 3 can be sunken towards the air duct 13, so that the risk of oil smoke dissipation of the range hood 100 is reduced; and the structure is simple, and the realization is easy.

On the basis, the edges of the first filter subnetwork 34 and the second filter subnetwork 35 are both trapezoids, the bottom edges of the two trapezoids are connected with the long edge of the rectangular hole, and the top edges of the two trapezoids are connected in the air duct 13. Wherein the length of the bottom edge is greater than the length of the top edge. With this kind of mode setting, when assembling filter screen 3, can avoid filter screen 3's edge and casing 1 to take place to interfere, be favorable to improving assembly efficiency.

Referring to fig. 3, 4, 5 and 8, in some embodiments, the filter screen 3 further comprises two connecting plates 36, the connecting plates 36 being adapted to connect two adjacent sides of the trapezoid and the corresponding short sides of the rectangular hole. This can improve the structural strength of the filter screen 3 and prevent the filter screen 3 from deforming.

On this basis, the air inlet hole 31 is a bar-shaped air inlet hole in which an extension line of a long side of the bar-shaped air inlet hole is perpendicular to a boundary of the suction port 11. Since the extension line of the long side of the strip-shaped air inlet is perpendicular to the boundary of the air suction port 11, and the first protruding edge 32 is disposed around the edge of the corresponding air inlet 31, the portion of the first protruding edge 32 corresponding to the long side of the strip-shaped air inlet is also perpendicular to the boundary of the air suction port 11. Thus, the grease adsorbed on the filter screen 3 is more easily gathered to the second convex edge 33 under the action of gravity.

Referring to fig. 3, 4, 5 and 8, in some embodiments, the suction port 11 is circular and the filter screen 3 is concave. The shape of the filter screen 3 may be a hemisphere, a one-third sphere, or another shape, and the disclosure is not limited in detail.

On this basis, the air inlet hole 31 is a bar-shaped air inlet hole in which an extension line of a long side of the bar-shaped air inlet hole is perpendicular to a tangent line of an intersection point of a boundary of the suction port 11. In this way, the first protruding edge 32 and the portion corresponding to the long side of the strip-shaped air inlet opening are also perpendicular to the boundary of the air suction opening 11, so that the grease adsorbed on the filter screen 3 can be more easily gathered to the second protruding edge 33 under the action of gravity.

Referring to fig. 1, 3, 6, 7 and 8, in some embodiments, a bottom plate 14 of the cabinet 1 is disposed obliquely, and the suction port 11 is disposed on the bottom plate 14. The first end 141 of the base plate 14 is provided with a first oil leakage hole, wherein the first end 141 is the end of the base plate 14 relatively far from the exhaust port 12. In addition, the range hood 100 further includes an oil cup 4, and the oil cup 4 is disposed on a side of the bottom plate 14 away from the exhaust port 12 and located at the first end 141 of the bottom plate 14. That is, the bottom plate 14 of the casing 1 provided with the air inlet 11 is obliquely disposed, and the lower end of the bottom plate 14 is provided with the first oil leakage hole and the oil cup 4. Based on this, grease in the casing 1 all can be through first oil leak hole inflow oil cup 4 in, is convenient for clean range hood 100.

In addition, an oil guide nozzle 331 is disposed on one side of the second protruding edge 33 close to the oil cup 4. Therefore, grease between the first convex edge 32 and the second convex edge 33 can be guided into the bottom plate 14 of the housing 1 through the grease guide nozzle 331 and then flows into the oil cup 4 through the first oil leakage hole, so that grease on one side of the filter screen 3 close to the air duct 13 is collected, and convenience is provided for cleaning the range hood 100.

Referring to fig. 3, 6 and 7, in some embodiments, the range hood 100 further includes an oil guide plate 5, and the oil guide plate 5 is disposed on a surface of the bottom plate 14 of the casing 1 away from the exhaust port 12 and located between the filter screen 3 and the oil cup 4, and is configured to guide grease on a side of the filter screen 3 away from the air duct 13 into the oil cup 4. Therefore, grease on one side of the filter screen 3 away from the air duct 13 can be collected, and convenience is provided for cleaning the range hood 100.

On the basis, the oil guide plate 5 is a glass plate, so that the range hood 100 is more attractive, and the competitiveness of the range hood 100 is improved.

Referring to fig. 3 and 6, in some embodiments, the range hood 100 further includes a smoke collection plate 6, and the smoke collection plate 6 is connected to the casing 1 at the second end 142 of the bottom plate 14 and can rotate around the bottom plate 14 to open or close the air suction opening 11. Wherein the second end 142 is the end of the base plate 14 that is relatively closer to the exhaust port 12. The second end 142 and the first end 141 are opposite ends of the bottom plate 14. That is, the cigarette collecting plate 6 is provided at the end of the casing 1 which is relatively higher than the bottom plate 14, and the cigarette collecting plate 6 can rotate around the bottom plate 14. Thus, when the smoke collecting plate 6 is in the open state, a recess facing the exhaust port 12 can be formed with the bottom plate 14 of the casing 1, which is beneficial to improving the smoke collecting effect of the range hood 100.

It should be noted that, when the range hood 100 is in the operating state, the smoke collecting plate 6 is in the first position, and the suction port 11 of the range hood 100 is opened at this time; when the range hood 100 is in a stop state, the smoke collecting plate 6 is in the second position, and the suction port 11 of the range hood 100 is closed.

When the range hood 100 works, the smoke collecting plate 6 is located at the first position, and at this time, the smoke collecting plate 6 can form an included angle with the bottom plate 14 of the casing 1 to collect the oil smoke to the air suction port 11. Therefore, the smoke collecting effect of the range hood 100 can be improved, and the risk of oil smoke dissipation of the range hood 100 is reduced. In addition, when the range hood 100 stops working, the smoke collecting plate 6 is located at the second position and shields the air suction port 11, so that dust can be prevented from entering the range hood 100 from the air suction port 11, and the interior of the range hood 100 can be kept clean.

It can be understood that when the smoke collecting plate 6 is at the first position and an included angle between the smoke collecting plate 6 and the bottom plate 14 of the casing 1 is small, part of the air suction port 11 of the range hood 100 is shielded by the smoke collecting plate 6, and the smoke suction effect is poor; when the included angle between the smoke collecting plate 6 and the bottom plate 14 of the casing 1 is large, the effect of collecting the oil smoke by the smoke collecting plate 6 is poor, and the problem of smoke leakage is easy to occur.

Based on this, in some embodiments, when the smoke-collecting plate 6 is in the first position, the included angle between the smoke-collecting plate 6 and the bottom plate 14 of the casing 1 is any angle between 94 ° and 100 °. Under the condition, the oil smoke absorption effect of the range hood 100 can be improved, and the risk of oil smoke dissipation of the range hood 100 is reduced.

In addition, in some embodiments, the smoke collecting plate 6 is a glass plate, so that the range hood 100 can be more beautiful, thereby improving the competitiveness of the range hood 100.

Referring to fig. 1 and 3, in some embodiments, the cabinet 1 includes a box 15 and a fume collecting hood 16 connected to the box 15, the box 15 is provided with an exhaust port 12, and the fume collecting hood 16 is provided with a suction port 11. Wherein, the fume collecting cover 16 includes an inner cover 161 and an outer cover 162, the inner cover 161 and the outer cover 162 are both connected with the box body 15, and the inner cover 161 is located in the outer cover 162. That is, the fume collecting hood 16 is a double-layered structure. On one hand, the double-layer structure has better sealing performance, and when the range hood 100 works, the suction port 11 can have larger suction force, so that the oil smoke absorption effect of the range hood 100 is improved. On the other hand, the outer cover 162 can also protect the inner cover 161, thereby prolonging the service life of the range hood 100.

On the basis, a mounting cavity is formed between the inner cover 161 and the outer cover 162 for routing and mounting some components of the range hood 100. With this kind of mode setting, can avoid the grease to adsorb on this part components and parts, and then avoid the grease to cause the influence to components and parts's performance.

Referring to fig. 2, 3 and 9, in some embodiments, the fan 2 is a centrifugal fan. It is understood that the fan 2 may also be an axial fan, and the disclosure is not limited thereto.

Exemplarily, the centrifugal fan comprises a volute 21 and a centrifugal fan 22 arranged within the volute 21. An air inlet 211 is disposed on the axial air inlet side of the scroll casing 21 corresponding to the centrifugal fan 22, an air outlet 212 is disposed on the side of the scroll casing 21 opposite to the air outlet 12, and a second oil leakage hole is disposed on the side of the scroll casing 21 away from the air outlet 212. Arranged in this way, grease in the oil smoke can be separated out under the action of centrifugal force, and flows to the second oil leakage hole along the volute casing 21, and finally flows out of the second oil leakage hole.

On the basis, the range hood 100 further comprises an oil receiving nozzle 7, and the oil receiving nozzle 7 is connected with the volute 21. The oil receiving nozzle 7 is located on one side of the second oil leakage hole far away from the air outlet 212, and one end close to the oil cup 4 is arranged in a staggered mode with the air suction port 11 in the vertical direction. Wherein, the end of the oil receiving nozzle 7 close to the oil cup 4 is the end of the oil receiving nozzle 7 relatively far away from the exhaust port 12, that is, the end of the oil receiving nozzle 7 close to the oil cup 4 is relatively low. In addition, the end of the oil receiving nozzle 7 close to the oil cup 4 is arranged in a staggered mode with the air suction port 11 in the vertical direction, so that the phenomenon that grease flowing out of the oil receiving nozzle 7 drips onto a cooking bench through the air suction port 11 to cause pollution can be avoided. So, the grease that flows out by the second oil leak hole will flow into and connect in the glib talker 7 to on flowing to the bottom plate 14 of casing 11 through connecing glib talker 7, and then flow into oil cup 4 through the first oil leak hole on the bottom plate 14, thereby realized the collection to grease in the fan 2, provide convenience for clean range hood 100.

Referring to fig. 3, 6 and 10, in some embodiments, the range hood 100 further includes a check valve 8, and the check valve 8 is disposed on a side of the casing 1 away from the air suction opening 11 and is communicated with the air discharge opening 12. Further, the end of the check valve 8 remote from the discharge port 12 communicates with the outside of the room through a pipe. The check valve 8 can prevent outdoor air from flowing backwards into the range hood 100 and bring dirt in the range hood 100 into the room, thereby polluting indoor air.

Referring to fig. 1 and 10, in some embodiments, the range hood 100 further includes an electrical box 9, and the electrical box 9 is disposed outside the casing 1 and is used for accommodating the capacitor and the power board.

Referring to fig. 10 and 11, in some embodiments, the extractor hood 100 further includes an operation switch 101 and an illumination lamp 102, where the operation switch 101 is configured to receive an operation instruction from a user to control an operating state of the extractor hood 100, and the illumination lamp 102 is configured to provide illumination for the user during cooking. In addition, the protection plates are arranged on the outer sides of the operating switch 101 and the illuminating lamp 102 and used for protecting the operating switch 101 and the illuminating lamp 102, so that the service lives of the operating switch 101 and the illuminating lamp 102 are prolonged, and the use experience of a user is improved.

On the basis, the protection plate is a glass plate, so that the range hood 100 can be more attractive, and the competitiveness of the range hood 100 is improved.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A range hood, comprising:

the air conditioner comprises a shell, a fan and a control device, wherein an air suction port and an air exhaust port are arranged on the shell, and an air duct is formed between the air suction port and the air exhaust port;

the fan is arranged in the air duct, and the airflow introduced by the fan enters the air duct through the air suction port and is discharged from the air exhaust port;

the filter screen, the suction opening department with the casing is connected, the filter screen towards the wind channel is inside sunken.

2. The range hood according to claim 1, wherein an air inlet hole is formed in the filter screen, a first convex edge and a second convex edge are formed on one side of the filter screen close to the air duct, each first convex edge corresponds to one air inlet hole, and each first convex edge is arranged around the edge of the corresponding air inlet hole; the second convex edge is arranged at the edge of the filter screen in a surrounding way.

3. The range hood according to claim 2, wherein the air suction opening is polygonal, the air inlet opening is a strip-shaped air inlet opening, and an extension line of a long side of the strip-shaped air inlet opening is perpendicular to a boundary of the air suction opening;

or; the air suction port is circular, the air inlet hole is a strip-shaped air inlet hole, and an extension line of a long edge of the strip-shaped air inlet hole is perpendicular to a tangent line of an intersection point of the boundary of the air suction port.

4. The range hood of claim 3, wherein the bottom plate of the housing is disposed obliquely, the suction port is disposed on the bottom plate, a first end of the bottom plate is provided with a first oil leakage hole, and the first end is an end of the bottom plate relatively far away from the exhaust port;

the range hood further comprises:

the oil cup is arranged on one side, far away from the exhaust port, of the bottom plate and is positioned at the first end of the bottom plate.

5. The range hood of claim 4, wherein an oil guide nozzle is disposed on a side of the second convex edge close to the oil cup.

6. The range hood of claim 4 or 5, further comprising:

the second end of the bottom plate is connected with the shell, and the smoke collecting plate can rotate around the bottom plate to open or close the air suction port; wherein the second end is the end of the bottom plate that is relatively closer to the exhaust port.

7. The range hood of claim 1 or 2, wherein the suction port is a rectangular hole, and the filter screen comprises:

one end of the first filter subnet is connected with one long edge of the rectangular hole, and the other end of the first filter subnet is positioned in the air duct;

and one end of the second filter subnet is connected with the other long edge of the rectangular hole, and the other end of the second filter subnet is connected with one end of the first filter subnet positioned in the air duct.

8. The range hood according to claim 1, wherein the housing comprises a box body and a fume collecting hood connected with the box body, the box body is provided with the exhaust port, and the fume collecting hood is provided with the suction port;

wherein, collection petticoat pipe includes inner cover and dustcoat, the inner cover with the dustcoat all with the box is connected, just the inner cover is located in the dustcoat.

9. A range hood according to claim 4 or 5 wherein the fan is a centrifugal fan.

10. The range hood of claim 9, wherein the centrifugal fan comprises a volute and a centrifugal fan disposed in the volute, the volute has an air inlet corresponding to an axial air inlet side of the centrifugal fan, and an air outlet is disposed at a side of the volute opposite to the air outlet; a second oil leakage hole is formed in one side, far away from the air outlet, of the volute;

the range hood further comprises an oil receiving nozzle, the oil receiving nozzle is connected with the volute and is positioned on one side of the second oil leakage hole, which is far away from the air outlet; one end of the oil receiving nozzle close to the oil cup is arranged in a staggered manner with the air suction port in the vertical direction; wherein, the end of the oil receiving nozzle close to the oil cup is the end of the oil receiving nozzle relatively far away from the exhaust port.

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