CN113446638A

CN113446638A - Fume exhaust fan

Info

Publication number: CN113446638A
Application number: CN202010220272.8A
Authority: CN
Inventors: 闫茂松; 王伟; 范强; 陈兴
Original assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Smart Technology R&D Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2021-09-28

Abstract

The application relates to household electrical appliances technical field discloses a lampblack absorber includes: flue and fan. The flue is nonlinear; the air inlet of the fan is communicated with one end of the flue. In this application, set up the flue of lampblack absorber into nonlinear type, the noise that the air current that makes the fan of lampblack absorber produce just can leave the flue and is perceived by the user through more reflections when flowing in the flue, and then the multiplicable volume of making an uproar that falls, does not occupy the space in wind channel when improving lampblack absorber noise reduction effect, prevents to influence the ventilation performance of lampblack absorber.

Description

Fume exhaust fan

Technical Field

The application relates to the technical field of household appliances, for example to a range hood.

Background

At present, the range hood becomes one of necessary kitchen equipment for ordinary families. Generally, the lampblack absorber can produce the noise at the course of the work, and this noise includes the multiple noise that a plurality of parts of lampblack absorber produced, and wherein the main noise composition that influences lampblack absorber complete machine noise level is fan wind channel noise. The main reason for generating the noise of the air duct of the fan is that the motor drives the wind wheel to rotate at a high speed, so that oil smoke can rapidly pass through the air duct, the noise of the air duct of the fan can be generated in the process, and the existing noise reduction technology of the range hood comprises a method for arranging a sound absorption material inside the air duct of the range hood.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the internal components of the existing range hood are compactly arranged, the physical space for arranging the sound absorption material is limited, the noise reduction amount which can be realized is limited, and meanwhile, the sound absorption material occupies an air channel and can influence the original ventilation performance of the range hood to a certain extent.

Disclosure of Invention

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a range hood to solve the problem that arranging a sound absorption material can influence the original ventilation performance of the range hood.

In some embodiments, a range hood includes: flue and fan. The flue is nonlinear; the air inlet of the fan is communicated with one end of the flue.

The range hood provided by the embodiment of the disclosure can realize the following technical effects:

set up the flue of lampblack absorber into nonlinear type, the noise that the air current that makes the fan of lampblack absorber produce just can leave the flue and is perceived by the user through more reflections when flowing in the flue, and then the multiplicable volume of making an uproar that falls does not occupy the space in wind channel when improving lampblack absorber noise reduction effect, prevents to influence the ventilation performance of lampblack absorber.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a cross-sectional view of a range hood provided by an embodiment of the disclosure;

fig. 2 is a schematic structural diagram of a range hood provided by the embodiment of the disclosure;

fig. 3 is a cross-sectional view of another range hood provided by the embodiments of the present disclosure;

fig. 4 is a schematic structural diagram of another range hood provided by the embodiment of the disclosure;

fig. 5 is a side view of another range hood provided by the embodiments of the present disclosure.

Reference numerals:

100. a flue; 101. an oil screen; 102. a core board; 103. an arc-shaped convex part; 104. connecting ribs; 105. a sound-deadening layer; 200. an oil road channel; 300. a fan; 301. an oil leak hole; 302. a volute; 303. an impeller; 400. a smoke collection cavity; 401. an oil collecting cup.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

Referring to fig. 1-2, an embodiment of the present disclosure provides a range hood, including: flue 100, oil way passageway 200 and fan 300. The oil path channel 200 is arranged on the side surface of the flue 100; the fan 300 is obliquely arranged with the horizontal plane, the lowest part of the fan is provided with an oil leakage hole 301, the oil leakage hole 301 is communicated with the oil passage 200, and the air inlet of the fan 300 is communicated with one end of the flue 100.

adopt the lampblack absorber that this disclosed embodiment provided, slope on flue 100 and set up fan 300 for oil on fan 300's the spiral case 302 inner wall drips to flowing more bottom, the collection of being convenient for oil drip prevents to drip difficult clearance after the cooling, and sets up oil circuit passageway 200 alone in one side of flue 100, makes the oil drip of collecting not receive the influence of wind, reduces its cooling rate, makes oil drip more easily adhere to, the clearance of being convenient for.

Optionally, the fan 300 is a centrifugal fan. Therefore, the centrifugal fan can absorb the oil smoke to obtain larger suction force, and the working efficiency of the range hood is improved.

Optionally, the fan 300 is inclined from the horizontal plane by an included angle between the fan 300 and the horizontal plane.

Optionally, an angle between the fan 300 and a horizontal plane is less than or equal to 30 degrees. Like this, can make fan 300 keep the slope be convenient for collect the oil stain on the fan 300, can prevent again that the too big lampblack absorber suction that increases the windage and cause of direction change from declining.

Optionally, the fan 300 is at an angle of 15 degrees to the horizontal. Like this, can make fan 300 keep the slope be convenient for collect the oil stain on the fan 300, can prevent again that the too big lampblack absorber suction that increases the windage and cause of direction change from declining.

Optionally, an included angle between the fan 300 and the horizontal plane is an included angle between a vertical plane and a horizontal plane of the air intake direction of the fan 300.

Optionally, the fan 300 comprises: a volute 302 and an impeller 303. The air inlet of the volute 302 is communicated with the upper end of the flue 100; an impeller 303 is disposed within the volute 302. Therefore, the oil smoke in the flue 100 can directly enter the volute 302, the oil smoke is prevented from being condensed on the outer side wall of the volute 302 to form oil stains, and the volute 302 is convenient to clean.

Optionally, both the volute 302 and the impeller 303 are disposed inclined with respect to the horizontal plane. Therefore, the volute 302 and the impeller 303 are kept in close fit, oil stains in the volute 302 can be collected through the inclined volute 302, and the volute 302 can be kept clean conveniently.

Optionally, the volute 302 is of unitary construction with the flue 100. In this way, the connection between the volute 302 and the flue 100 is made more stable, and the oil stain deposition in the gap between the volute 302 and the flue 100 is prevented.

Alternatively, the air inlet of the volute 302 is in direct communication with the upper end opening of the flue 100. Therefore, the oil smoke in the flue 100 can directly enter the volute 302, and the oil smoke flow path is smoother.

Optionally, the lower end opening of the flue 100 is provided with an oil screen 101. In this way, the oil smoke passing through the flue 100 can be primarily filtered, and large particles of oil smoke are intercepted to reduce the condensation of the oil smoke at the fan 300.

Optionally, the oil net 101 is detachably connected with the flue 100. Thus, the oil screen 101 is convenient to detach for cleaning, and the oil screen 101 is kept clean.

Optionally, the oil screen 101 has a plate-like structure with mesh holes, and is plugged at the lower port of the flue 100. Like this, can make the oil smoke pass through oil net 101, can adsorb some large granule oil stains in oil net 101 again.

Optionally, oil passage 200 is disposed hidden within a sidewall of stack 100. Therefore, the oil channel 200 is completely isolated from the flue 100, the oil stain is prevented from being accelerated to be condensed because the airflow in the flue 100 blows into the oil channel 200, and the condensation speed of the oil stain in the oil channel 200 is reduced.

Optionally, the side wall of the flue 100 is provided with an interlayer, and the oil passage 200 is arranged in the interlayer. Therefore, the oil channel 200 can be isolated from the flue 100, the air flow in the flue 100 can not accelerate the condensation of oil stains, and meanwhile, the oil channel 200 can be hidden to keep the appearance attractive.

Optionally, the oil passage 200 is a separate passage and is disposed on the inner wall of the flue 100 and protrudes toward the inner side of the flue 100. Like this, set up oil way passageway 200 in flue 100, can improve space utilization to oil way passageway 200 is kept apart with flue 100, prevents that the air current in flue 100 from blowing to the interior oil stain that causes of oil way passageway 200 and accelerating the coagulation, reduces the coagulation speed of oil stain in oil way passageway 200.

Optionally, an oleophobic coating is provided within the oil passage 200. Thus, the oil stain can be prevented from being condensed on the oil passage 200, so that the oil stain can be dropped down along the oil passage 200, and the oil passage 200 can be kept clean.

Optionally, the oleophobic coating is a nanosilica coating. Therefore, the nano silicon dioxide is sprayed on the inner surface of the oil channel 200, so that the inner surface of the oil channel 200 is oleophobic, oil stains are prevented from being condensed, and the oil channel 200 is kept clean.

Optionally, a heating module is disposed in the oil passage 200 and configured to heat the oil passage 200. Thus, oil stains condensed in the oil passage 200 are melted and dropped during heating, the oil passage 200 is cleaned, and the oil passage 200 is kept smooth.

Optionally, the heating module is an electric heating wire, and the electric heating wire is wound around the oil path channel 200. Thus, the oil passage 200 is heated by the electric heating wire with a simple structure, so that the structure can be simplified, and the cost can be reduced.

Optionally, the range hood further comprises: and a smoke collection chamber 400 arranged at the lower side of the flue 100 and communicated with the bottom end of the flue 100. Therefore, the absorption area of the oil smoke can be enlarged, the oil smoke is easier to be absorbed into the flue 100, and the smoking effect of the range hood is improved.

Optionally, an oil collecting cup 401 is disposed in the smoke collecting cavity 400 at the lower side of the oil passage 200. Like this, be convenient for collect the oil stain of condensing in unison, and set up oil cup 401 and be convenient for dismantle the washing to oil cup 401 in collection smoke chamber 400, keep clean.

Optionally, the oil collecting cup 401 is detachably connected with the smoke collecting cavity 400. Thus, the oil collecting cup 401 can be detached for cleaning, and the cleanness of the oil collecting cup 401 is kept.

Optionally, the opening of smoke collection chamber 400 is larger than the opening at the lower end of smoke stack 100. Therefore, the smoke collection area of the smoke channel 100 can be enlarged through the smoke collection cavity 400, and the smoke collection efficiency of the range hood is improved.

As shown in fig. 3 to 5, an embodiment of the present disclosure provides a range hood, including: flue 100 and fan 300. Flue 100 is non-linear; the air inlet of the fan 300 is communicated with one end of the flue 100.

Adopt this disclosed embodiment to provide's lampblack absorber, set up the flue 100 of lampblack absorber into nonlinear line type, make the noise in the lampblack absorber just can leave flue 100 and be perceived by the user through more reflections, and then the multiplicable volume of making an uproar that falls does not occupy the space in wind channel when improving lampblack absorber noise reduction effect, prevents to influence the ventilation performance of lampblack absorber.

Alternatively, stack 100 is non-linear in its entirety, and portions of stack 100 may be linear. Thus, the straight portion facilitates installation and use of the flue 100, and saves installation space.

Optionally, flue 100 includes a non-linear region and a linear region, with the non-linear region in the middle and the linear regions at the upper and lower ends. Therefore, the upper end and the lower end are linear areas to facilitate the installation of the flue 100, and the middle is a non-linear area to reduce the noise generated in the flue 100.

Optionally, the non-linear region has a cross-sectional area greater than or equal to the cross-sectional area of the linear region. Therefore, the nonlinear area can generate certain obstruction to airflow, the obstruction to the airflow by the nonlinear area can be reduced by keeping the cross section area of the nonlinear area relatively large, the wind resistance is reduced, and the smoking efficiency of the range hood is improved.

Alternatively, stack 100 is curved or dog-legged. Thus, the noise in the flue 100 is reflected for multiple times through the arc-shaped or zigzag-shaped flue 100, and the noise is effectively reduced. The flue 100 is arc-shaped, so that the air flow is less obstructed, and noise reduction and wind resistance reduction can be realized; the flue 100 is in a zigzag shape, so that the noise reduction effect of the flue 100 can be greatly improved.

Optionally, a core 102 is provided within stack 100 and is configured to divide the interior of stack 100 into non-linear channels. Therefore, the flue 100 can be divided into non-linear channels, the non-linear channels are used for increasing the reflection times of noise, the noise reduction effect is improved, meanwhile, the core plate 102 can absorb partial noise to achieve the noise reduction effect, and the noise reduction effect in the whole flue 100 is further increased.

Optionally, core 102 divides stack 100 into two symmetrical, non-linear channels. Therefore, the oil smoke in the flue 100 is divided to flow to the two channels, so that the noise is reduced, the reflection times of the noise in the two non-linear channels are increased, and the noise reduction effect in the flue 100 is further improved.

Alternatively, core plates 102 are vertically disposed. Therefore, the flue 100 can be divided into vertical non-linear channels, so that the oil smoke can flow from bottom to top conveniently, and the smoke passing efficiency of the flue 100 is improved.

Optionally, core plate 102 is made of a sound attenuating material. Therefore, the core plate 102 has a good noise reduction effect, and the noise reduction effect is improved.

Optionally, the sound dampening material is a fibrous material or a foam material. Therefore, the noise of the middle and high frequency can be absorbed and reduced, and the sharp noise is reduced.

Optionally, a heating module is provided within core plate 102. Therefore, the core plate 102 can be heated, oil stains in the oil smoke are prevented from being condensed on the core plate 102, and the noise reduction effect of the core plate 102 is reduced.

Optionally, stack 100 comprises: the arc-shaped protrusion 103 has a core plate 102 disposed at the center thereof, and is configured to channel the oil smoke and allow the oil smoke to flow along an arc. Thus, the arc-shaped protruding part 103 is arranged on the flue 100, and the core plate 102 is used for guiding the oil smoke to flow along an arc shape to form an arc-shaped channel, so that the noise reduction effect can be effectively improved, the smooth circulation in the flue 100 is kept, and the utilization rate of the space of the flue 100 is improved.

Optionally, core plate 102 is drop-shaped. Like this, the side of core 102 is the arc, form curved passageway with arc bellying 103 cooperation, thereby improve noise reduction effect through the arc passageway, and the lower extreme of water droplet shape also is the arc, can have better reposition of redundant personnel guide effect to the air current, make the even side along core 102 of air current flow, it is even to keep the air current, the production of noise reduction, the tail end of water droplet shape has the extension, can dredge the direction of the air current behind the arc passageway, form each other when preventing that the air current from merging and strike and cause the air current velocity of flow to descend, improve the smoking efficiency of lampblack absorber.

Alternatively, the core plate 102 is in a three-dimensional water drop shape, the arc-shaped protrusion 103 is in a circular cylinder structure, and the core plate 102 is arranged at the center of the arc-shaped protrusion 103. Thus, the core plate 102 is arranged in the arc-shaped protruding part 103 of the circular cylinder structure, an arc-shaped channel can be formed between the core plate and the arc-shaped protruding part 103, the ventilation efficiency is higher, and the noise reduction effect can be improved through the arc-shaped channel.

Alternatively, core plate 102 is connected to arcuate projections 103 by tie bars 104. Thus, the core plate 102 can be stably placed at the center of the arcuate projection 103.

Optionally, the longitudinal section of the core plate 102 is in a shape of a drop, the cross section of the arc-shaped protrusion 103 is rectangular, and the core plate 102 is vertically arranged in the middle of the arc-shaped protrusion 103 to divide the arc-shaped protrusion 103 into two arc-shaped channels. Therefore, the air flow is divided into two parts which pass through the two arc-shaped channels respectively, and the two arc-shaped channels are utilized to reduce noise, so that the noise reduction effect can be improved.

Alternatively, core 102 is secured to the inside walls of stack 100 by screws or snap-fit structures. Thus, core plate 102 can be directly contacted and connected with the side wall of flue 100, and the fixation of core plate 102 is more stable.

Optionally, the flue 100 is provided with an acoustical layer 105 on the side walls. In this way, the noise reduction layer 105 on the side wall of the flue 100 reduces the noise in the flue 100, and further improves the noise reduction effect.

Optionally, sound attenuating layer 105 is made of a sound attenuating material. Thus, the noise of the middle and high frequency can be reduced.

Optionally, the sound damping layer 105 is a micro-perforated noise damping sheet. In this way, noise at low and medium frequencies can be reduced using the microperforated noise reduction plate.

Optionally, part of the sound-deadening layer 105 is made of sound-deadening material, and the rest of the sound-deadening layer 105 is a micro-perforated plate. Like this, the noise reduction material can fall the noise of median frequency and fall, and the board of making an uproar falls in the microperforation can fall the noise of median frequency and fall, and the frequency of making an uproar can improve to installation noise reduction material and microperforation board simultaneously. More comprehensive noise reduction.

Optionally, the sound damping layer 105 is secured to the side walls of the stack 100 by a perforated plate. The fixed stability of noise reduction layer 105 is kept, and noise can be better contacted with noise reduction layer 105 through the perforated plate, and the noise reduction effect is improved.

Optionally, the perforated plate is connected with the inner side wall of the flue 100 by screws or snaps, and the sound deadening layer 105 is arranged between the perforated plate and the inner side wall. In this way, by fixing the sound-deadening layer 105 by sandwiching the perforated plate and the inner side wall of the flue 100, the sound-deadening layer 105 can be prevented from being damaged, and the stability of fixing the sound-deadening layer 105 can be maintained.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A range hood, comprising:

the flue is nonlinear;

and the air inlet of the fan is communicated with one end of the flue.

2. A range hood as claimed in claim 1, wherein said flue is arc-shaped or dog-leg shaped.

3. A range hood as set forth in claim 1 wherein a core is disposed within said flue configured to divide said flue into non-linear channels.

4. A range hood as claimed in claim 3, characterized in that the core divides the flue into two symmetrical non-rectilinear channels.

5. A range hood as claimed in claim 3, characterized in that the core plate is made of a sound-damping material.

6. A range hood as claimed in claim 3, characterized in that said flue comprises:

the center of the inner part of the arc-shaped bulge part is provided with the core plate which is configured to dredge oil smoke and enable the oil smoke to flow along the arc.

7. A range hood as claimed in any of claims 1 to 6, characterized in that a sound-deadening layer is provided on the side wall of the flue.

8. A range hood as claimed in claim 8, characterized in that the sound-damping layer is fixed on the side wall of the flue by means of a perforated plate.

9. The range hood according to any one of claims 1 to 6, further comprising:

the smoke collecting cavity is arranged on the lower side of the flue and communicated with the bottom end of the flue.

10. A range hood as claimed in claim 9, wherein the opening of the smoke collection chamber is larger than the opening at the lower end of the flue.