CN219199300U

CN219199300U - Fume exhaust fan

Info

Publication number: CN219199300U
Application number: CN202223589462.0U
Authority: CN
Inventors: 苏玉侠; 周伟峰; 梁之博; 罗家胜; 潘叶江
Original assignee: Vatti Co Ltd
Current assignee: Vatti Co Ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-06-16
Anticipated expiration: 2032-12-31

Abstract

The utility model provides a range hood. The range hood comprises a fume collecting hood, an oil net and a guide plate. The smoke collecting cover is surrounded to form a smoke collecting cavity and is provided with a main smoke inlet and an auxiliary smoke inlet; the oil net is arranged at the main smoke inlet; the guide plate is arranged at the auxiliary smoke inlet, is connected to the inside of the smoke collecting cover and is provided with a gap with the bottom of the smoke collecting cover, so that the circulation speed of the oil smoke at the auxiliary smoke inlet is increased. The fume collecting hood of the range hood is provided with a main fume inlet and an auxiliary fume inlet, wherein the auxiliary fume inlet is used for sucking escaped fume, and a guide plate is arranged at the auxiliary fume inlet, so that the fume collecting effect on escaped fume is improved.

Description

Fume exhaust fan

Technical Field

The utility model relates to the technical field of kitchen appliances, in particular to a range hood.

Background

The range hood usually only has one or two smoke inlets, and the effect of gathering fume is poor, has the problem of oil smoke escape more, and the prior art solves the problem of oil smoke escape through increasing the amount of wind generally, but solves the defect that noise is increased will be produced like this, causes bad experience for the user.

Disclosure of Invention

The utility model aims to provide a range hood, wherein a smoke collecting cover of the range hood is provided with a main smoke inlet and an auxiliary smoke inlet, the auxiliary smoke inlet is used for sucking escaped smoke, and a guide plate is arranged at the auxiliary smoke inlet, so that the smoke collecting effect on escaped smoke is improved.

In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:

according to one aspect of the present utility model, a range hood is provided. The range hood comprises a fume collecting hood, an oil net and a guide plate. The smoke collecting cover is surrounded to form a smoke collecting cavity and is provided with a main smoke inlet and an auxiliary smoke inlet; the oil net is arranged at the main smoke inlet; the guide plate is arranged at the auxiliary smoke inlet, is connected to the inside of the smoke collecting cover and is provided with a gap with the bottom of the smoke collecting cover, so that the circulation speed of the oil smoke at the auxiliary smoke inlet is increased.

According to one embodiment of the utility model, the middle part of the bottom of the smoke gathering cover bulges into the smoke gathering cavity to form a smoke gathering bottom wall, the auxiliary smoke inlet is arranged at the side part of the smoke gathering bottom wall, the guide plate is provided with a guide surface, and the guide surface is arranged corresponding to the side part and has the gap with the smoke gathering bottom wall.

According to one embodiment of the utility model, the gap from one end of the guide surface to the smoke collecting bottom wall is smaller than the gap from the other end of the guide surface to the smoke collecting bottom wall, so that the flow rate of the oil smoke from the guide surface to one side of a larger gap at the bottom of the smoke collecting cover is increased.

According to one embodiment of the utility model, the flow guide plate is further provided with a flow blocking surface, and the flow blocking surface is connected to one side of the flow guide surface away from the main smoke inlet and is connected with the side wall of the smoke collecting cover.

According to one embodiment of the utility model, the guide plate is further provided with an oil guide surface, and the oil guide surface is connected to one side of the guide surface, which is close to the main smoke inlet, and is connected with the top of the smoke collecting cover.

According to one embodiment of the utility model, the range hood further comprises an oil cup, the oil cup is arranged at the bottom of the fume collecting hood, and the inclination angle of the oil guide surface towards the oil cup is greater than or equal to 10 degrees.

According to one embodiment of the utility model, the number of the auxiliary smoke inlets is two, the main smoke inlet is arranged in the middle of the bottom of the smoke collecting cover, the two auxiliary smoke inlets are symmetrically arranged on two sides of the main smoke inlet, and the number of the guide plates is two correspondingly.

According to one embodiment of the utility model, the oil screen is provided with a plurality of strip-shaped smoke inlet holes, and the smoke inlet holes are arranged at equal intervals along the length direction of the range hood.

According to one embodiment of the utility model, the width of the smoke inlet holes in the middle of the oil screen is smaller than the width of the smoke inlet holes on two sides of the oil screen.

According to one embodiment of the utility model, the range hood further comprises a fan assembly, the top of the fume collecting hood is provided with a first opening, and the fan assembly is arranged at the first opening.

One embodiment of the present utility model has the following advantages or benefits:

the fume collecting hood of the fume extractor is provided with the main fume inlet and the auxiliary fume inlet, wherein the auxiliary fume inlet is used for sucking escaped fume, and the guide plate is arranged at the auxiliary fume inlet, so that the fume extracting effect on escaped fume is improved; the guide plate is provided with a guide surface, and the gap from one side of the guide surface to the bottom of the fume collecting hood is larger than the gap from the other side of the guide surface to the bottom of the fume collecting hood, so that the escape probability of the fume on the other side of the guide surface is reduced; the guide plate is provided with a flow blocking surface, so that the negative pressure on the oil smoke is more concentrated, and the oil smoke is further prevented from escaping; the guide plate is also provided with an oil guide surface, so that accumulated oil on the inner wall of the fume collecting hood is prevented from directly dripping from the oil net and is guided to enter an oil cup arranged at the bottom of the fume collecting hood; the width of the smoke inlet hole in the middle of the oil screen is smaller than that of the smoke inlet holes in the two sides of the oil screen, so that negative pressure distribution at the main smoke inlet is changed, the flow speed of oil smoke is accelerated, and the escape of the oil smoke is reduced.

Drawings

The above and other features and advantages of the present utility model will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

Fig. 1 is a perspective view of a range hood according to an exemplary embodiment.

Fig. 2 is a schematic flow diagram of escaping oil smoke of a range hood according to an exemplary embodiment.

Fig. 3 is a flow diagram of oil accumulation of a range hood according to an exemplary embodiment.

Fig. 4 is a schematic view of an oil screen of a range hood according to an exemplary embodiment.

Fig. 5 is a perspective view of a baffle of a range hood according to an exemplary embodiment.

Fig. 6 is a perspective view of a hood of a range hood according to an exemplary embodiment.

Wherein reference numerals are as follows:

1. a fume collecting hood; 11. a smoke collecting cavity; 12. a main smoke inlet; 13. auxiliary smoke inlet; 14. a bottom wall for gathering cigarettes; 141. a platform; 142. a side portion; 2. an oil screen; 21. a smoke inlet hole; 3. a deflector; 31. a flow guiding surface; 32. a flow blocking surface; 33. an oil guiding surface; 4. a gap; 5. an oil cup; 6. a fan assembly; 61. a fan cover; 62. a fan main body.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.

The terms "a," "an," "the," and "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.

As shown in fig. 1 to 6, fig. 1 shows a perspective view of a range hood provided by the present utility model. Fig. 2 shows a schematic flow diagram of escaping oil smoke of the range hood provided by the utility model.

Fig. 3 shows a schematic flow diagram of accumulated oil of a range hood according to the present utility model. Fig. 4 shows a schematic view of an oil screen 2 of a range hood according to the present utility model. Fig. 5 shows a perspective view of a baffle 3 of a range hood according to the present utility model. Fig. 6 shows a perspective view of a smoke collecting hood 1 of a range hood according to the present utility model.

The range hood provided by the embodiment of the utility model comprises a smoke collecting hood 1, an oil net 2 and a guide plate 3. The smoke collecting cover 1 is surrounded to form a smoke collecting cavity 11 and is provided with a main smoke inlet 12 and an auxiliary smoke inlet 13; the oil screen 2 is arranged at the main smoke inlet 12; the guide plate 3 is arranged at the auxiliary smoke inlet 13, and the guide plate 3 is connected to the inside of the smoke collecting cover 1 and is provided with a gap 4 with the bottom of the smoke collecting cover 1 so as to increase the circulation speed of the oil smoke at the auxiliary smoke inlet 13.

As shown in fig. 1 to 3, the fume collecting hood 1 comprises a top wall, a bottom wall and a side wall, the bottom wall is located at the bottom of the fume collecting hood 1 and is provided with a main fume inlet 12 and an auxiliary fume inlet 13, the main fume inlet 12 is arranged corresponding to a region where fume is concentrated, the oil screen 2 is arranged corresponding to the main fume inlet 12 and is connected with the bottom wall of the fume collecting hood 1 so as to filter a large amount of accumulated oil contained in the fume, the auxiliary fume inlet 13 is arranged at one side of the main fume inlet 12 and corresponds to a region where the fume is thinner, when the fume exhauster is arranged corresponding to a kitchen range, the fume generated by cooking flows upwards to the main fume inlet 12, due to the limited adsorption capacity of the main fume inlet 12, part of the fume can flow to the auxiliary fume inlet 13 along the bottom wall of the fume collecting hood 1, the deflector 3 is arranged in the fume collecting hood 11 and is connected with the fume collecting hood 1, a fume guiding channel is formed by clamping the deflector 3 between the bottom wall of the fume collecting hood 1 and the fume collecting hood 1, the deflector 3 is arranged at the auxiliary fume inlet 13, and the deflector 3 has a certain gap 4 which is opposite to the bottom of the fume collecting hood 1, and the fume collecting hood can only flow through the auxiliary fume inlet 13, and the fume inlet 13 is increased in the flow speed.

In a preferred embodiment of the utility model, the middle part of the bottom of the smoke gathering cover 1 bulges into the smoke gathering cavity 11 to form a smoke gathering bottom wall 14, the auxiliary smoke inlet 13 is arranged on the side part 142 of the smoke gathering bottom wall 14, the guide plate 3 is provided with a guide surface 31, and the guide surface 31 is arranged corresponding to the side part 142 and has a gap 4 with the smoke gathering bottom wall 14.

As shown in fig. 1 to 3 and 6, the bottom of the smoke gathering cover 1 bulges into the smoke gathering cavity 11 to form a smoke gathering bottom wall 14, the cross-sectional shape of the smoke gathering bottom wall 14 is similar to a trapezoid, the main smoke inlet 12 is arranged at the top platform 141 of the smoke gathering bottom wall 14, the auxiliary smoke inlet 13 is arranged at the waist part of the smoke gathering bottom wall 14 corresponding to the trapezoid, the guide surface 31 is arranged corresponding to the auxiliary smoke inlet 13, the guide surface 31 corresponds to the smoke gathering bottom wall 14 provided with the auxiliary smoke inlet 13 and has a gap 4 with the smoke gathering bottom wall 14, when the smoke escapes to the auxiliary smoke inlet 13, under the action of the fan assembly 6 with the same power, the smoke flow rate of the set guide plate 3 is larger than that of the smoke without the guide plate 3, so that the negative pressure effect of the auxiliary smoke inlet 13 is increased by the guide surface 31.

In a preferred embodiment of the utility model, the gap 4 from one end of the flow guiding surface 31 to the smoke collecting bottom wall 14 is smaller than the gap 4 from the other end of the flow guiding surface 31 to the smoke collecting bottom wall 14, so as to increase the flow velocity of the oil smoke from the flow guiding surface 31 to the side of the larger gap 4 at the bottom of the smoke collecting cover 1.

As shown in fig. 3, the gap 4 from the front end of the guide surface 31 to the smoke collecting bottom wall 14 is smaller than the gap 4 from the rear end of the guide surface 31 to the smoke collecting bottom wall 14, so that the guide channel has the characteristic of gradually increasing from front to back, the negative pressure effect gradually increases from front to back, the flow rate of the oil smoke on the rear side of the range hood, namely, the side close to the wall of the range hood is increased, and the escape probability of the oil smoke to the front of the range hood is reduced.

In a preferred embodiment of the utility model, the baffle 3 also has a flow blocking surface 32, the flow blocking surface 32 being connected to the side of the flow blocking surface 31 remote from the main smoke inlet 12 and to the side wall of the smoke gathering hood 1.

As shown in fig. 2 and 5, the flow blocking surface 32 extends outwards from the side of the flow guiding surface 31 away from the main smoke inlet 12, that is, the outer side of the flow guiding surface 31 to the side wall of the smoke collecting hood 1, so that one end of the smoke guiding channel is closed, and the smoke can only flow into the smoke collecting cavity 11 from the other end of the smoke guiding channel, so that the negative pressure of the fan assembly 6 on the smoke is more concentrated, the flow velocity is higher, and the escape of the smoke is further prevented.

In a preferred embodiment of the utility model, the baffle 3 also has an oil guiding surface 33, and the oil guiding surface 33 is connected to the side of the baffle 31 near the main smoke inlet 12 and is connected to the top of the smoke collecting hood 1.

As shown in fig. 3 and 5, the oil guiding surface 33 extends inwards and upwards from the side of the guiding surface 31 close to the main smoke inlet 12, that is, the inner side of the guiding surface 31 and is connected with the top of the smoke collecting hood 1, so that accumulated oil at the top of the smoke collecting hood 1 is guided to be reserved along the oil guiding surface 33, and oil drops are prevented from directly dropping through the oil screen 2.

In a preferred embodiment of the present utility model, the range hood further comprises an oil cup 5, the oil cup 5 is disposed at the bottom of the fume collecting hood 1, and the inclination angle of the oil guiding surface 33 toward the oil cup 5 is greater than or equal to 10 °.

As shown in fig. 1 to 3, the oil cup 5 is disposed at the rear side of the bottom of the fume collecting hood 1, that is, below one side of the fume collecting hood 1 in the baking chamber, the front end of the oil guiding surface 33 is connected to the side wall of the front side of the fume collecting hood 1, and the oil guiding surface 33 is inclined to one side of the oil cup 5 by an angle of 10 ° or more, so that the accumulated oil flowing down from the inner wall and the top wall of the front side of the fume collecting hood 1 can be collected into the oil cup 5 after flowing down to the rear side of the range hood along the oil guiding surface 33, and the inclined angle is too small to be unfavorable for the flowing of the accumulated oil.

In a preferred embodiment of the present utility model, the number of the auxiliary smoke inlets 13 is two, the main smoke inlet 12 is arranged in the middle of the bottom of the smoke collecting cover 1, the two auxiliary smoke inlets 13 are symmetrically arranged at two sides of the main smoke inlet 12, and the number of the corresponding guide plates 3 is also two.

As shown in fig. 1 to 3, the smoke gathering cover 1 is in a cuboid structure, the main smoke inlet 12 is arranged in the middle of the smoke gathering bottom wall 14, the middle of the smoke gathering bottom wall 14 is raised to form a platform 141 similar to a rectangle or square in the smoke gathering cavity 11, the smoke gathering bottom wall 14 is provided with a side part 142 positioned at the front side of the platform 141, a side part 142 positioned at the rear side of the platform 141, a side part 142 positioned at the left side of the platform 141 and a side part 142 positioned at the right side of the platform 141, the two auxiliary smoke inlets 13 are respectively arranged at the left side part 142 and the right side part 142, the two guide plates 3 are respectively arranged corresponding to the left auxiliary smoke inlet 13 and the right auxiliary smoke inlet 13, and the two auxiliary smoke inlets 13 and one main smoke inlet 12 are arranged along the length direction of the smoke gathering cover 1, so that the smoke gathering area can be increased to the maximum extent, and the probability of escaping of smoke into a room is reduced.

In a preferred embodiment of the present utility model, the oil screen 2 is provided with a plurality of elongated smoke inlet holes 21, and the smoke inlet holes 21 are equally spaced along the length direction of the range hood. The width of the smoke inlet 21 positioned in the middle of the oil screen 2 is smaller than that of the smoke inlet 21 positioned at two sides of the oil screen 2.

As shown in fig. 1 to 4, the smoke inlet holes 21 are arranged at equal intervals along the length direction of the range hood, the whole oil screen 2 is fully distributed, so that the smoke flowing to the main smoke inlet 12 can enter to the greatest extent, the width of the smoke inlet hole 21 on the left side is gradually increased from the middle part of the oil screen 2 to the left part of the oil screen 2, the width of the smoke inlet on the right side is gradually increased from the middle part of the oil screen 2 to the right part of the oil screen 2, the negative pressure distribution at the main smoke inlet 12 is changed, the pressure is gradually increased from the left side and the right side at the corresponding position in the middle of the oil screen 2, the flow speed of the smoke is accelerated, and the smoke can be quickly sucked into the smoke collecting cavity 11 under the action of the fan assembly 6, so that the escape of the smoke is reduced.

In a preferred embodiment of the utility model, the range hood further comprises a fan assembly 6, the top of the fume collecting hood 1 is provided with a first opening, and the fan assembly 6 is arranged at the first opening.

As shown in fig. 1 to 3, the fan assembly 6 includes a fan housing 61 and a fan main body 62 disposed in the fan housing 61, the fan main body 62 is configured to enable oil smoke to enter the power source of the fume collecting hood 1 and the fan housing 61 through the main smoke inlet 12 and the auxiliary smoke inlet 13 respectively, a first opening is formed in the middle of the top of the fume collecting hood 1, the bottom of the fan housing 61 is opened corresponding to the first opening and fixedly connected with the fume collecting hood 1, welding or screw fixedly connection can be adopted, so that the fume collecting cavity 11 is communicated with the inner cavity of the fan housing 61, most of the oil smoke enters the inner cavity of the fume collecting cavity 11 and the inner cavity of the fan housing 61 through the main smoke inlet 12 under the power action of the fan main body 62, and the rest of the oil smoke enters the fume guiding channel through the auxiliary smoke inlet 13 under the action of the fan main body 62 after escaping to the auxiliary smoke inlet 13, and then enters the inner cavity of the fume collecting cavity 11 and the inner cavity of the fan housing 61.

The fume collecting hood 1 of the range hood is provided with the main fume inlet 12 and the auxiliary fume inlet 13, wherein the auxiliary fume inlet 13 is used for sucking escaped fume, and the guide plate 3 is arranged at the auxiliary fume inlet 13, so that the fume sucking effect on escaped fume is improved; the guide plate 3 is provided with a guide surface 31, and the gap 4 from one side of the guide surface 31 to the bottom of the fume collecting hood 1 is larger than the gap 4 from the other side of the guide surface 31 to the bottom of the fume collecting hood 1, so that the escape probability of the fume to the other side of the guide surface 31 is reduced; the guide plate 3 is provided with a flow blocking surface 32, so that the negative pressure on the oil smoke is more concentrated, and the oil smoke is further prevented from escaping; the guide plate 3 is also provided with an oil guiding surface 33, so that accumulated oil on the inner wall of the fume collecting hood 1 is prevented from directly dripping from the oil net 2 and is guided to enter an oil cup 5 arranged at the bottom of the fume collecting hood 1; the width of the smoke inlet 21 positioned in the middle of the oil screen 2 is smaller than that of the smoke inlet 21 positioned at two sides of the oil screen 2, so that negative pressure distribution at the main smoke inlet 12 is changed, the flow speed of the oil smoke is accelerated, and the escape of the oil smoke is reduced.

In embodiments of the present utility model, the term "plurality" refers to two or more, unless explicitly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly attached, detachably attached, or integrally attached. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In the description of the embodiments of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and to simplify the description, and do not indicate or imply that the devices or units referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the embodiments of the present utility model.

In the description of the present specification, the terms "one embodiment," "a preferred embodiment," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present utility model and is not intended to limit the embodiment of the present utility model, and various modifications and variations can be made to the embodiment of the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present utility model should be included in the protection scope of the embodiments of the present utility model.

Claims

1. A range hood, comprising:

the smoke collecting cover (1), the smoke collecting cover (1) is surrounded to form a smoke collecting cavity (11) and is provided with a main smoke inlet (12) and an auxiliary smoke inlet (13);

the oil net (2) is arranged at the main smoke inlet (12); and

the guide plate (3), guide plate (3) set up in supplementary inlet (13) department, just guide plate (3) connect in draw in the inside of petticoat pipe (1) and with draw in the bottom of petticoat pipe (1) has clearance (4), in order to increase the oil smoke and be in the circulation speed of supplementary inlet (13) department.

2. The range hood according to claim 1, wherein the bottom middle part of the fume gathering hood (1) bulges into the fume gathering cavity (11) to form a fume gathering bottom wall (14), the auxiliary fume inlet (13) is arranged at a side part (142) of the fume gathering bottom wall (14), the guide plate (3) is provided with a guide surface (31), and the guide surface (31) is arranged corresponding to the side part (142) and is provided with the gap (4) with the fume gathering bottom wall (14).

3. The range hood according to claim 2, wherein the gap (4) from one end of the guide surface (31) to the fume gathering bottom wall (14) is smaller than the gap (4) from the other end of the guide surface (31) to the fume gathering bottom wall (14) to increase the flow rate of the fume from the guide surface (31) to the side of the larger gap (4) at the bottom of the fume gathering hood (1).

4. The range hood according to claim 2, characterized in that the baffle (3) further has a flow blocking surface (32), the flow blocking surface (32) being connected to a side of the flow guiding surface (31) remote from the main inlet (12) and to a side wall of the range hood (1).

5. The range hood according to claim 2, wherein the deflector (3) further has an oil guiding surface (33), and the oil guiding surface (33) is connected to a side of the oil guiding surface (31) close to the main smoke inlet (12) and is connected to the top of the smoke collecting hood (1).

6. The range hood according to claim 5, further comprising an oil cup (5), wherein the oil cup (5) is disposed at the bottom of the fume collecting hood (1), and the inclination angle of the oil guiding surface (33) toward the oil cup (5) is 10 ° or more.

7. The range hood according to claim 1, wherein the number of the auxiliary smoke inlets (13) is two, the main smoke inlet (12) is arranged in the middle of the bottom of the smoke collecting hood (1), the two auxiliary smoke inlets (13) are symmetrically arranged at two sides of the main smoke inlet (12), and the number of the guide plates (3) is two correspondingly.

8. The range hood according to claim 1, wherein the oil screen (2) is provided with a plurality of long smoke inlet holes (21), and the smoke inlet holes (21) are arranged at equal intervals along the length direction of the range hood.

9. A range hood according to claim 8, characterized in that the width of the smoke inlet holes (21) in the middle of the oil screen (2) is smaller than the width of the smoke inlet holes (21) on both sides of the oil screen (2).

10. The range hood according to claim 1, further comprising a fan assembly (6), wherein the top of the fume collecting hood (1) is provided with a first opening, and the fan assembly (6) is arranged at the first opening.