CN115823634A

CN115823634A - Smoke exhaust ventilator

Info

Publication number: CN115823634A
Application number: CN202211736186.8A
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: 2023-03-21

Abstract

The invention provides a range hood. The range hood comprises a smoke collecting hood, an oil screen and a guide plate. The smoke collecting cover is arranged in a surrounding manner to form a smoke collecting cavity and is provided with a main smoke inlet and an auxiliary smoke inlet; the oil screen is arranged at the main smoke inlet; the guide plate set up in supplementary inlet flue department, just the guide plate connect in hold together the inside of petticoat pipe and with the bottom of holding together the petticoat pipe has the clearance, is in order to increase the oil smoke supplementary inlet flue department's circulation speed. The smoke collecting cover of the range hood is provided with a main smoke inlet and an auxiliary smoke inlet, wherein the auxiliary smoke inlet is used for sucking escaping oil smoke, and a guide plate is arranged at the auxiliary smoke inlet, so that the smoke collecting effect on the escaping oil smoke is improved.

Description

Smoke exhaust ventilator

Technical Field

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

Background

The lampblack absorber only has one or two inlet vents usually, and it is poor to hold together the cigarette effect, has the problem that the oil smoke escaped more, and prior art solves the problem that the oil smoke escaped through increasing the amount of wind usually, but solves the defect that will produce the noise increase like this, causes bad experience for the user.

Disclosure of Invention

The invention 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 escaping oil smoke, and a guide plate is arranged at the auxiliary smoke inlet, so that the smoke collecting effect on the escaping oil smoke is improved.

In order to realize the purpose of the invention, the invention adopts the following technical scheme:

according to one aspect of the present invention, a range hood is provided. The range hood comprises a smoke collecting hood, an oil screen and a guide plate. The smoke collecting cover is arranged in a surrounding manner to form a smoke collecting cavity and is provided with a main smoke inlet and an auxiliary smoke inlet; the oil screen is arranged at the main smoke inlet; the guide plate set up in supplementary inlet flue department, just the guide plate connect in hold together the inside of petticoat pipe and with the bottom of holding together the petticoat pipe has the clearance, is in order to increase the oil smoke supplementary inlet flue department's circulation speed.

According to an embodiment of the invention, the middle part of the bottom of the smoke collecting cover bulges into the smoke collecting cavity to form a smoke collecting bottom wall, the auxiliary smoke inlet is arranged at a side part of the smoke collecting 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 collecting bottom wall.

According to an embodiment of the invention, the gap from one end of the flow guide surface to the smoke-collecting bottom wall is smaller than the gap from the other end of the flow guide surface to the smoke-collecting bottom wall, so as to increase the oil smoke flow rate from the flow guide surface to the side of the larger gap at the bottom of the smoke-collecting cover.

According to an embodiment of the invention, the flow guide plate further has a flow blocking surface, and the flow blocking surface is connected to a side of the flow guide surface away from the main smoke inlet and connected to the side wall of the smoke collecting hood.

According to an embodiment of the invention, the deflector further has an oil guiding surface, and the oil guiding surface is connected to one side of the deflector, which is close to the main smoke inlet, and is connected with the top of the smoke collecting hood.

According to an embodiment of the invention, the range hood further comprises an oil cup, the oil cup is arranged at the bottom of the smoke collecting hood, and an inclination angle of the oil guide surface facing the oil cup is greater than or equal to 10 °.

According to an embodiment of the present invention, the number of the auxiliary smoke inlets is two, the main smoke inlet is disposed in the middle of the bottom of the smoke collecting cover, the two auxiliary smoke inlets are symmetrically disposed on two sides of the main smoke inlet, and correspondingly, the number of the flow guide plates is also two.

According to an embodiment of the present invention, the oil screen is provided with a plurality of elongated smoke inlet holes, and the plurality of smoke inlet holes are arranged at equal intervals along a length direction of the range hood.

According to an embodiment of the present invention, the width of the smoke inlet located in the middle of the oil screen is smaller than the width of the smoke inlet located on both sides of the oil screen.

According to an embodiment of the present invention, the range hood further includes a fan assembly, the top of the smoke collecting hood has a first opening, and the fan assembly is disposed at the first opening.

One embodiment of the present invention has the following advantages or benefits:

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

Drawings

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

Fig. 1 is a perspective view illustrating 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 schematic flow diagram illustrating oil accumulation of a range hood according to an exemplary embodiment.

Fig. 4 is a schematic diagram illustrating 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 illustrating a smoke-collecting hood of a range hood according to an exemplary embodiment.

Wherein the reference numerals are as follows:

1. collecting the smoke hood; 11. a cigarette collecting cavity; 12. a main smoke inlet; 13. an auxiliary smoke inlet; 14. gathering the bottom wall of the cigarette; 141. a platform; 142. a side portion; 2. an oil screen; 21. a smoke inlet hole; 3. a baffle; 31. a flow guide surface; 32. a flow resistance surface; 33. oil guiding surface; 4. a gap; 5. an oil cup; 6. a fan assembly; 61. a fan guard; 62. the fan main part.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different 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 example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

The terms "a," "an," "the," "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. other than the listed elements/components/etc.

As shown in fig. 1 to 6, fig. 1 is a perspective view of a range hood provided by the present invention. Fig. 2 shows a schematic flow diagram of escaping oil smoke of the range hood provided by the invention. Fig. 3 shows a schematic flow diagram of oil accumulation of the range hood provided by the invention. Fig. 4 shows a schematic diagram of an oil screen 2 of a range hood provided by the invention. Fig. 5 shows a perspective view of a deflector 3 of a range hood provided by the present invention. Fig. 6 shows a perspective view of a smoke collecting hood 1 of a range hood provided by the invention.

The range hood of the embodiment of the invention comprises a smoke collecting hood 1, an oil screen 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 inside the smoke collecting hood 1 and has a gap 4 with the bottom of the smoke collecting hood 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 smoke collecting hood 1 includes a top wall, a bottom wall and a side wall, the bottom wall is located at the bottom of the smoke collecting hood 1 and is provided with a main smoke inlet 12 and an auxiliary smoke inlet 13, the main smoke inlet 12 is arranged corresponding to a region where smoke is concentrated, the oil screen 2 is arranged corresponding to the main smoke inlet 12 and is connected with the bottom wall of the smoke collecting hood 1, so as to filter a large amount of accumulated oil contained in the smoke, the auxiliary smoke inlet 13 is arranged at one side of the main smoke inlet 12 and corresponds to a region where the smoke is thin, when the range hood is arranged corresponding to a cooker, the smoke generated by cooking flows upwards to reach the main smoke inlet 12, because the adsorption capacity of the main smoke inlet 12 is limited, part of the smoke may flow to the auxiliary smoke inlet 13 along the bottom wall of the smoke collecting hood 1, the guide plate 3 is arranged in the smoke collecting cavity 11 and connected with the smoke collecting hood 1, so that a smoke guide channel is formed between the bottom wall of the guide plate 3 and the smoke collecting hood 1, the flow channel is formed by arranging the guide plate 3 at the auxiliary smoke inlet 13, and the flow area of the smoke inlet 13 can be increased, and the flow of the smoke inlet 13 can be increased.

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

As shown in fig. 1 to fig. 3 and fig. 6, the bottom of the smoke collecting cover 1 protrudes into the smoke collecting cavity 11 to form a smoke collecting bottom wall 14, the cross-sectional shape of the smoke collecting bottom wall 14 is similar to a trapezoid, the main smoke inlet 12 is disposed at the top platform 141 of the smoke collecting bottom wall 14, the auxiliary smoke inlet 13 is disposed at the waist of the smoke collecting bottom wall 14 corresponding to the trapezoid, the flow guide surface 31 is disposed corresponding to the auxiliary smoke inlet 13, the flow guide surface 31 is disposed corresponding to the smoke collecting bottom wall 14 provided with the auxiliary smoke inlet 13 and has a gap 4 with the smoke collecting bottom wall 14, when the smoke escapes to the auxiliary smoke inlet 13, the flow rate of the smoke provided with the flow guide plate 3 is greater than the flow rate of the smoke not provided with the flow guide plate 3 under the effect of the fan assembly 6 with the same power, so that the flow guide surface 31 increases the negative pressure effect at the auxiliary smoke inlet 13.

In a preferred embodiment of the present invention, 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 rate of the 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, a gap 4 from the front end of the flow guide surface 31 to the smoke collection bottom wall 14 is smaller than a gap 4 from the rear end of the flow guide surface 31 to the smoke collection bottom wall 14, so that the flow guide channel has the characteristic of gradually increasing from front to rear, the negative pressure effect is gradually increased from front to rear, the oil smoke is increased at the rear side of the range hood, namely the oil smoke flow rate of the range hood close to one side of the wall, and the probability of the oil smoke escaping to the front of the range hood is reduced.

In a preferred embodiment of the present invention, the deflector 3 further has a flow blocking surface 32, and the flow blocking surface 32 is connected to a side of the deflector surface 31 away from the main smoke inlet 12 and connected to a side wall of the smoke collecting hood 1.

As shown in fig. 2 and 5, the flow blocking surface 32 extends outward from one 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 cover 1, so as to seal one end of the smoke guiding channel, so that the smoke can only flow into the smoke collecting cavity 11 from the other end of the smoke guiding channel in a concentrated manner, so that the fan assembly 6 concentrates the negative pressure of the smoke, the flow rate is higher, and the smoke is further prevented from escaping.

In a preferred embodiment of the present invention, the deflector 3 further has an oil guiding surface 33, and the oil guiding surface 33 is connected to one side of the deflector surface 31 close to the main smoke inlet 12 and connected with the top of the smoke collecting hood 1.

As shown in fig. 3 and 5, the oil guiding surface 33 extends inward and upward from one side of the guiding surface 31 close to the main smoke inlet 12, that is, the inner side of the guiding surface 31, and then is connected with the top of the smoke collecting hood 1, so that the accumulated oil on the top of the smoke collecting hood 1 is guided to remain 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 invention, the range hood further comprises an oil cup 5, the oil cup 5 is disposed at the bottom of the smoke collecting hood 1, and the inclination angle of the oil guide surface 33 towards the oil cup 5 is greater than or equal to 10 °.

As shown in fig. 1 to fig. 3, the oil cup 5 is disposed at the bottom rear side of the smoke collecting hood 1, that is, below one side of the roasting chamber of the smoke collecting hood 1, the front end of the oil guiding surface 33 is connected to the front side wall of the smoke collecting hood 1, the oil guiding surface 33 inclines towards one side of the oil cup 5, the inclination angle is greater than or equal to 10 °, so that the accumulated oil flowing down from the front side inner wall and the top wall of the smoke collecting hood 1 can be collected into the oil cup 5 after flowing to the rear side of the range hood along the oil guiding surface 33, and the small inclination angle is not favorable for the flow of the accumulated oil.

In a preferred embodiment of the present invention, 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 on two sides of the main smoke inlet 12, and correspondingly, the number of the flow guide plates 3 is also two.

As shown in fig. 1 to fig. 3, the smoke collecting cover 1 is a rectangular parallelepiped structure, the main smoke inlet 12 is disposed in the middle of the smoke collecting bottom wall 14, the middle of the smoke collecting bottom wall 14 is similar to a rectangle or a square to the platform 141 formed by the bulge in the smoke collecting cavity 11, so that the smoke collecting bottom wall 14 has a side portion 142 located at the front side of the platform 141, a side portion 142 located at the rear side of the platform 141, a side portion 142 located at the left side of the platform 141, and a side portion 142 located at the right side of the platform 141, two auxiliary smoke inlets 13 are respectively disposed at the left side portion 142 and the right side portion 142, two guide plates 3 are also respectively disposed corresponding to the left auxiliary smoke inlet 13 and the right auxiliary smoke inlet 13, the two auxiliary smoke inlets 13 and the main smoke inlet 12 are disposed along the length direction of the smoke collecting cover 1, the smoke collecting area can be increased to the maximum, and the probability of oil smoke escaping into the room is reduced.

In a preferred embodiment of the present invention, the oil screen 2 is provided with a plurality of strip-shaped smoke inlet holes 21, and the plurality of smoke inlet holes 21 are arranged at equal intervals along the length direction of the range hood. The width of the smoke inlet 21 in the middle of the oil screen 2 is smaller than the width of the smoke inlet 21 on both sides of the oil screen 2.

As shown in fig. 1 to 4, a plurality of smoke inlet holes 21 are arranged at equal intervals along the length direction of the range hood, and are fully distributed on the whole oil screen 2, so that the oil smoke flowing to the main smoke inlet 12 can enter to the maximum, 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, thereby changing the negative pressure distribution at the main smoke inlet 12, gradually increasing the pressure from the middle corresponding position of the oil screen 2 to the left and right sides, accelerating the flow speed of the oil smoke, thereby enabling the oil smoke to be sucked into the smoke collecting cavity 11 quickly under the effect of the fan component 6, and reducing the escape of the oil smoke.

In a preferred embodiment of the present invention, the range hood further includes a fan assembly 6, the top of the smoke collecting hood 1 has a first opening, and the fan assembly 6 is disposed at the first opening.

As shown in fig. 1 to 3, the fan assembly 6 includes a fan cover 61 and a fan main body 62 disposed in the fan cover 61, the fan main body 62 is configured such that oil smoke passes through the main smoke inlet 12 and the auxiliary smoke inlet 13 respectively and enters the smoke collecting hood 1 and a power source of the fan cover 61, a first opening is disposed in the middle of the top of the smoke collecting hood 1, the bottom of the fan cover 61 is open, the bottom of the fan cover 61 corresponds to the first opening and is fixedly connected to the smoke collecting hood 1, which may be welded or fixedly connected by screws, so that the smoke collecting cavity 11 is communicated with an inner cavity of the fan cover 61, under the power of the fan main body 62, most of the oil smoke enters the inner cavities of the smoke collecting cavity 11 and the fan cover 61 through the main smoke inlet 12, and the remaining oil smoke escapes to the auxiliary smoke inlet 13 and then enters the smoke guiding channel through the auxiliary smoke inlet 13 under the action of the fan main body 62, and then enters the inner cavities of the smoke collecting cavity 11 and the fan cover 61.

The smoke collecting cover 1 of the range hood is provided with a main smoke inlet 12 and an auxiliary smoke inlet 13, wherein the auxiliary smoke inlet 13 is used for sucking escaping oil smoke, and the guide plate 3 is arranged at the auxiliary smoke inlet 13, so that the smoke sucking effect on the escaping oil smoke is improved; the guide plate 3 is provided with a guide surface 31, and a gap 4 from one side of the guide surface 31 to the bottom of the smoke collecting cover 1 is larger than a gap 4 from the other side of the guide surface 31 to the bottom of the smoke collecting cover 1, so that the probability of the oil smoke escaping 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 negative pressure on oil smoke is concentrated, and the oil smoke is further prevented from escaping; the guide plate 3 is also provided with an oil guide surface 33 which prevents the accumulated oil on the inner wall of the smoke collecting hood 1 from directly dropping from the oil net 2 and guides the accumulated oil into an oil cup 5 arranged at the bottom of the smoke collecting hood 1; the width of the smoke inlet 21 in the middle of the oil screen 2 is smaller than the width of the smoke inlet 21 at the two sides of the oil screen 2, so that the 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 invention, the term "plurality" means two or more unless explicitly defined otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or units must have a specific direction, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the embodiments of the present invention.

In the description herein, the appearances of the phrases "one embodiment," "a preferred embodiment," and similar language, throughout this specification may, but do not necessarily, all refer to the same embodiment or example. In this specification, the schematic representations of the terms used above 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 description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present embodiment by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A range hood, comprising:

the smoke collecting cover (1) is arranged in a surrounding manner 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), the said oil screen (2) is set up in the said main smoke inlet (12); and

guide plate (3), guide plate (3) set up in supplementary inlet flue (13) department, just guide plate (3) connect in hold together the inside of petticoat pipe (1) and with the bottom of holding together petticoat pipe (1) has clearance (4), is in with the increase oil smoke the circulation speed of supplementary inlet flue (13) department.

2. The range hood according to claim 1, wherein the bottom middle portion of the smoke collecting cover (1) is raised into the smoke collecting cavity (11) to form a smoke collecting bottom wall (14), the auxiliary smoke inlet (13) is disposed on a side portion (142) of the smoke collecting bottom wall (14), the flow guide plate (3) has a flow guide surface (31), and the flow guide surface (31) is disposed corresponding to the side portion (142) and has the gap (4) with the smoke collecting bottom wall (14).

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

4. The range hood according to claim 2, wherein the flow guide plate (3) further has a flow blocking surface (32), and the flow blocking surface (32) is connected to a side of the flow guide surface (31) away from the main smoke inlet (12) and is connected to a side wall of the smoke collecting 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 one side of the deflector 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 arranged at the bottom of the fume collecting hood (1), and the inclination angle of the oil guide surface (33) towards the oil cup (5) is greater than or equal to 10 °.

7. The range hood according to claim 1, wherein the number of the auxiliary smoke inlet (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 on two sides of the main smoke inlet (12), and correspondingly, the number of the guide plates (3) is also two.

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

9. The range hood according to claim 8, wherein the width of the smoke inlet (21) located in the middle of the oil screen (2) is smaller than the width of the smoke inlet (21) located 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 smoke collecting hood (1) is provided with a first opening, and the fan assembly (6) is arranged at the first opening.