CN212430969U

CN212430969U - Fume exhaust fan

Info

Publication number: CN212430969U
Application number: CN202020404478.1U
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: 2021-01-29
Anticipated expiration: 2030-03-25

Abstract

The application relates to the technical field of household appliances, and discloses a range hood, include: a flue; the partition plate is arranged in the flue, is formed along the longitudinal extension of the flue and is configured to divide the flue into mutually independent smoke paths. In this application, be provided with the partition panel in the flue of lampblack absorber, separate mutually independent flue gas flow path with the flue, can reduce the cross-sectional area that ventilates relatively, multiplicable noise absorbing area, increase noise high frequency failure cut-off frequency widens the sound absorption frequency band, and the reinforcing sound absorption effect, and can increase the fluid flow rate for smoking speed.

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 cigarette machine are compactly arranged, the physical space for arranging the sound absorption material is limited, and the noise reduction effect is not ideal.

SUMMERY OF THE UTILITY MODEL

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, which aims to solve the problems that the internal components of the existing range hood are compact in arrangement, the physical space for arranging sound absorption materials is limited, and the noise reduction effect is poor.

In some embodiments, a range hood includes: flue and partition panel. The partition plate is arranged in the flue, extends and forms along the longitudinal direction of the flue and is configured to divide the flue into mutually independent smoke paths.

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

the partition plate is arranged in the flue of the range hood, the flue is divided into mutually independent flue gas flow paths, the ventilation sectional area can be relatively reduced, the noise absorption area can be increased, the noise high-frequency failure cut-off frequency can be increased, the sound absorption frequency band can be widened, the sound absorption effect can be enhanced, the fluid flow rate can be increased, and the smoking speed can be accelerated.

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 schematic cross-sectional view of a range hood provided by an embodiment of the disclosure;

FIG. 2 is a top view of a flue provided by embodiments of the present disclosure;

FIG. 3 is a top view of another stack provided by embodiments of the present disclosure;

FIG. 4 is a top view of another stack provided by embodiments of the present disclosure;

fig. 5 is a schematic cross-sectional view of a partition panel provided by an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of a stack according to an embodiment of the present disclosure;

fig. 7 is a schematic cross-sectional view of another range hood provided by the embodiment of the present disclosure;

FIG. 8 is a top view of another stack provided by embodiments of the present disclosure;

fig. 9 is a schematic cross-sectional view of a partition panel provided in an embodiment of the present disclosure.

Reference numerals:

100. a flue; 101. a sound-deadening layer; 102. an oil screen; 200. a partition panel; 201. an oleophobic coating; 202. An oil stain receiving groove; 203. an acoustically transparent aperture; 204. an oil resistant sound permeable layer.

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 to 7, an embodiment of the present disclosure provides a range hood, including: a flue 100; the partition panel 200 is provided in the flue 100, is formed to extend in the longitudinal direction of the flue 100, and is configured to divide the flue 100 into mutually independent flue paths.

By adopting the range hood provided by the embodiment of the disclosure, the partition plate 200 is arranged in the flue 100 of the range hood, the flue 100 is divided into mutually independent flue gas flow paths, the ventilation sectional area can be relatively reduced, the noise absorption area can be increased, the noise high-frequency failure cut-off frequency can be increased, the sound absorption frequency band can be widened, the sound absorption effect can be enhanced, the flow rate of fluid can be increased, and the smoking speed can be accelerated.

Alternatively, one or more partition plates 200 may be provided, and a plurality of partition plates 200 may be disposed in parallel or may be disposed to intersect vertically. Thus, the partition board 200 is used to divide the flue 100 into a plurality of mutually independent flue gas flow paths, so that the ventilation cross section area can be reduced, the noise absorption area can be increased, and the sound absorption effect can be enhanced.

Alternatively, the partition panel 200 is provided as one, and is configured to divide the flue 100 into two mutually independent flue gas flow paths. Therefore, the material of the partition panel 200 is saved, and simultaneously the flue 100 is divided into two mutually independent flue gas flow paths, so that the ventilation sectional area can be relatively reduced, the noise absorption area is increased, and the sound absorption effect is enhanced.

Optionally, the partition board 200 is detachably connected with the inner wall of the flue 100. In this way, it is convenient to remove the partition panel 200 for maintenance.

Optionally, the detachable connection comprises a snap connection. Like this, the buckle is connected for common detachable connection structure, easily obtains.

Optionally, a plurality of partition panels 200 are disposed in parallel and evenly spaced apart and configured to divide the flue 100 into a plurality of uniform flue gas flow paths. Thus, the plurality of partition panels 200 arranged in parallel are used for dividing the flue 100 into uniform flue gas flow paths, so that the ventilation sectional area can be relatively reduced, the noise absorption area can be increased, and the sound absorption effect can be enhanced.

Optionally, a plurality of partition panels 200 are disposed to vertically intersect each other and configured to divide the stack 100 into a plurality of flue gas flow paths. Thus, the flue 100 is divided into a plurality of mutually independent flue gas flow paths by using the plurality of intersecting partition panels 200, so that the ventilation sectional area can be further reduced, the noise absorption area can be further increased, and the sound absorption effect can be further enhanced.

Alternatively, the thickness of the edge of the partition plate 200 is gradually reduced. In this way, it is possible to avoid the generation of vortex regions at the smoke inlet side edge and the smoke outlet side edge of the partition panel 200, reducing the loss of the oil smoke flow resistance.

Optionally, the tapering of the edge thickness of the partition panel comprises: the thickness of the edge of the partition plate is reduced in an arc shape or in a sharp shape. Thus, the oil fume flow at the edge of the partition plate 200 is facilitated, and the loss of oil fume flow resistance is reduced.

Optionally, the thickness of the partition board 200 decreases in an arc shape at one end edge facing the smoke inlet direction of the smoke stack 100. Therefore, the oil smoke guiding device is more beneficial to guiding the oil smoke, so that the oil smoke smoothly flows into the flue 100, and the loss of oil smoke gas flow resistance is reduced.

Optionally, the thickness of the edge of the partition board 200 at one end facing away from the smoke inlet direction of the smoke stack 100 is reduced in a sharp shape. Therefore, a vortex area generated at the smoke outlet end of the smoke flue 100 can be avoided, and the loss of oil smoke flow resistance is reduced.

Alternatively, the partition panel 200 is a hollow structure, and the inside is filled with a sound absorbing material. In this way, the partition board 200 is filled with the sound absorbing material, so that the medium-high frequency noise in the flue 100 can be absorbed, and the noise reduction effect can be improved.

Optionally, the sound absorbing 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, the outer side wall of the partition plate 200 is provided with an oleophobic coating 201. Thus, the oil stain can be prevented from being condensed on the outer sidewall of the partition plate 200, so that the oil stain can flow down along the outer sidewall of the partition plate 200, and the outer sidewall of the partition plate 200 can be kept clean.

Optionally, oleophobic coating 201 is a nanosilica coating. Like this, through with the spraying of nanometer silica at the lateral wall of partition panel 200, make the lateral wall of partition panel 200 oleophobic, prevent that the oil stain from condensing, keep the cleanness of the lateral wall of partition panel 200.

Optionally, the lower end of the partition plate 200 is provided with an oil receiving groove 202. Like this, be convenient for accomodate and flow down the greasy dirt along the lateral wall of partition panel 200, the concentration and the clearance of the greasy dirt of being convenient for.

Optionally, the oil receiving groove 202 is detachably connected with the partition plate 200. Thus, the oil receiving groove 202 is convenient to disassemble and clean.

Optionally, the side of the partition plate 200 is provided with a plurality of sound-transmitting holes 203. Like this, the noise can be introduced into the partition panel 200 through the sound-transmitting hole 203 in the side of the partition panel 200, and the sound-absorbing material filled in the partition panel 200 is convenient for absorb the introduced noise, thereby further improving the noise reduction effect.

Optionally, an oil-proof sound-transmitting layer 204 is disposed between the sound-transmitting holes 203 and the inside of the partition panel 200. Like this, the setting of grease proofing sound-transmitting layer 204 both can guarantee that the noise can spread into partition panel 200 smoothly inside, can also prevent in the greasy dirt among the oil smoke gets into partition panel 200, protects the sound absorbing material in the partition panel 200 not contaminated.

The oil-resistant sound-transmitting layer 204 is a thin film made of polytetrafluoroethylene material. Like this, polytetrafluoroethylene has better oleophobic nature, can prevent that oil from adhering on partition panel 200, influences partition panel 200's noise reduction effect.

Optionally, stack 100 is linear or non-linear. Like this, set up flue 100 into linear type or nonlinear type, the circulation of the interior oil smoke of flue 100 of being convenient for and the reflection of noise do not occupy the space in wind channel when improving lampblack absorber noise reduction effect, prevent to influence the ventilation performance of lampblack absorber.

Alternatively, stack 100 is generally linear. Therefore, the oil smoke can conveniently circulate in the flue 100, the resistance loss of oil smoke gas flow is reduced, and the ventilation performance of the range hood is not influenced while the noise of the range hood is reduced.

Optionally, stack 100 is non-linear in its entirety. Therefore, noise in the flue 100 can be reflected more conveniently, and the noise reduction effect of the range hood is improved.

Alternatively, non-linear 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 reflect more noise in the flue 100 and enhance the noise reduction effect.

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. In this way, the arc-shaped or zigzag-shaped flue 100 makes the noise in the flue 100 generate multiple reflections, thereby enhancing the noise reduction effect.

Optionally, stack 100 is arcuate. Therefore, the air flow is less obstructed, and noise reduction and wind resistance reduction can be realized.

Alternatively, stack 100 is dog-legged. Thus, the zigzag flue 100 can increase the reflection times of the noise in the flue 100, and greatly improve the noise reduction effect of the flue 100.

As shown in fig. 8 to 9, an embodiment of the present disclosure provides a range hood, including: a flue 100; the partition panel 200 includes a plurality of cross-connected flat plate structures, is provided in the flue duct 100, and is configured to divide the flue duct 100 into a plurality of mutually independent flue paths.

Adopt this disclosed embodiment to provide's lampblack absorber, be provided with partition panel 200 in the flue 100 of lampblack absorber, partition panel 200 is formed by a plurality of cross connection's flat structure, can separate out a plurality of mutually independent flue gas flow path with flue 100 through a partition panel 200, flue gas flow quantity in the single flue gas flow path is less, the area increase of flue gas and flue 100 inner wall and partition panel 200 contact, can strengthen the sound absorption effect, and can increase the fluid flow velocity, accelerate smoking speed.

Optionally, the partition panel 200 is vertically disposed along the flue 100. Therefore, a plurality of vertical mutually independent smoke flow paths can be separated in the flue 100, so that the linear flow of the oil smoke in the flue 100 is facilitated, and the resistance to the flow of the oil smoke is reduced.

Alternatively, a plurality of cross-connected flat plate structures refers to an integral body composed of a plurality of flat plates cross-welded, wherein an edge of at least one flat plate is in contact with an inner wall of stack 100. In this way, it is convenient to enhance the stability of the partition panel 200, extending the service life of the partition panel 200.

Optionally, a sound-deadening layer 101 is provided on the inner wall of the flue 100. In this way, the noise reduction layer 101 on the inner wall of the flue 100 reduces the noise in the flue 100, and the noise reduction effect is further improved.

Optionally, the sound attenuating layer 101 is made of sound attenuating material. Thus, the noise of the middle and high frequency can be reduced.

Optionally, the sound reduction layer 101 is a micro-perforated noise reduction plate. 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 101 is made of sound-deadening material, and the rest of the sound-deadening layer 101 is a micro-perforated plate. Like this, the noise reduction material can fall the noise of median high frequency and make an uproar, and the board of making an uproar falls in the microperforation can fall the noise of median low frequency and make an uproar, and the frequency of making an uproar can improve to installation noise reduction material and microperforation acoustical panel simultaneously, and more comprehensive falls makes an uproar.

Optionally, the lower port of the flue 100 is provided with an oil screen 102. Therefore, the oil smoke passing through the flue 100 can be primarily filtered, and the large-particle oil smoke is intercepted to reduce the condensation of the oil smoke in the flue 100.

Optionally, the oil screen 102 is detachably connected to the flue 100. In this way, the oil screen 102 is easily removed for cleaning, and the oil screen 102 is kept clean.

Optionally, the oil screen 102 is a plate grid structure, and is plugged at the lower port of the flue 100. Therefore, the oil smoke can smoothly pass through the oil net 102, and large-particle oil stains in the oil net 102 can be adsorbed while the pressure balance inside and outside the flue 100 is kept.

Optionally, the outer wall of the oil net 102 is provided with an oil absorbing material. Therefore, oil stains can be adsorbed when oil smoke contacts with the outer wall of the oil screen 102, and condensation of the oil stains entering the flue 100 is reduced.

Optionally, the oil absorbing material is an oil absorbing sponge. Therefore, the oil absorption sponge can absorb a large amount of oil stains in oil smoke, and the oil absorption effect is good.

Optionally, the partition panel 200 comprises two criss-crossing plate structures. Like this, can divide into a plurality of mutually independent flue gas flow path with flue 100, the flue gas flow volume in the single flue gas flow path is less, and the area increase of flue gas and flue 100 inner wall and partition panel 200 contact can strengthen the sound absorption effect, and can increase the fluid velocity of flow for smoking speed.

Optionally, the length of the partition panel 200 is less than the length of the stack 100. Therefore, the air pressure among the plurality of flue gas flow paths separated by the partition plate 200 in the flue 100 is communicated, the pressure difference in each flue gas flow path is reduced, and the service life of the partition plate 200 is prolonged.

Alternatively, the length of the partition panel 200 refers to the length of the partition panel 200 extending longitudinally along the stack 100. In this way, partition panels 200 facilitate the division of stack 100 into multiple mutually independent flue gas flow paths.

Optionally, the partition board 200 is detachably connected to the flue 100. In this way, the installation and removal of the partition panel 200 is facilitated, and the partition panel 200 is conveniently removed for maintenance when the partition panel 200 is damaged or contaminated.

Alternatively, the partition panel 200 is fixed to the inner sidewall of the stack 100 by a screw or a snap structure. In this way, the partition panel 200 can be directly connected to the side wall of the stack 100 in contact therewith, and the partition panel 200 can be stably fixed.

Optionally, the thickness of the edge of one end of the partition board 200 facing away from the smoke inlet direction of the smoke stack 100 is reduced in a sharp shape. Therefore, a vortex area generated at the smoke outlet end of the smoke flue 100 can be avoided, and the loss of oil smoke flow resistance is reduced.

Optionally, one end of the partition board 200 facing the smoke inlet direction of the smoke stack 100 is provided with an oil stain receiving groove 202. Like this, be convenient for accomodate and flow down the greasy dirt along the lateral wall of partition panel 200, the concentration and the clearance of the greasy dirt of being convenient for.

Optionally, an oil-proof sound-transmitting layer 204 is disposed between the sound-transmitting holes 203 and the inside of the partition plate 200. Like this, the setting of grease proofing sound-transmitting layer 204 both can guarantee that the noise can spread into partition panel 200 smoothly inside, can also prevent in the greasy dirt among the oil smoke gets into partition panel 200, protects the sound absorbing material in the partition panel 200 not contaminated.

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:

a flue;

the partition plate is arranged in the flue, is formed along the longitudinal extension of the flue and is configured to divide the flue into mutually independent smoke paths.

2. A range hood as set forth in claim 1, wherein said partition plates are provided in one or more number, and a plurality of said partition plates are disposed in parallel or in a vertical crossing arrangement.

3. A hood fan according to claim 1, wherein the thickness of the edge of the partition plate is gradually reduced.

4. The range hood according to claim 3, wherein the thickness of one end edge of the partition plate facing the smoke inlet direction of the flue is reduced in an arc shape.

5. A range hood as claimed in claim 3, wherein the partition panel reduces in thickness in a pointed manner at an edge of the partition panel facing away from the direction of smoke entering the flue.

6. A range hood as claimed in any of claims 1 to 5, wherein the partition panel is a hollow structure, and is filled with sound absorbing material.

7. A range hood as set forth in claim 6, wherein the partition plate is provided at a side thereof with a plurality of sound-transmitting holes.

8. A range hood as claimed in claim 7, wherein an oil-proof sound-transmitting layer is provided between the sound-transmitting holes and the inside of the partition panel.

9. A range hood as claimed in any of claims 1 to 5, characterized in that the flue is rectilinear or non-rectilinear.

10. A range hood as claimed in claim 9, wherein said flue is arc-shaped or dog-leg shaped.