CN212511336U

CN212511336U - Smoke exhaust ventilator

Info

Publication number: CN212511336U
Application number: CN202022038517.3U
Authority: CN
Inventors: 陈思强; 刘璐; 许宁; 温汉杰; 丁泺火
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-02-09
Anticipated expiration: 2030-09-17

Abstract

The utility model relates to a range hood. The range hood comprises a machine shell, a driving fan and an oil smoke processing mechanism, wherein the oil smoke processing mechanism comprises a filtering fan, a first filtering piece and a second filtering piece. The driving fan is arranged in the air duct of the shell, and the oil smoke treatment mechanism is arranged in the air duct and is positioned between the driving fan and the air inlet. When oil smoke is absorbed, the driving fan is started, so that the oil smoke enters the air channel from the air inlet. The filtering fan of the oil smoke processing mechanism is started, so that the oil smoke can be sucked into the filtering fan through the suction inlet after being filtered by the first filtering piece and is discharged through the second filtering piece through the air outlet. The driving fan further discharges the oil smoke passing through the oil smoke treatment mechanism through the air outlet. Because the oil smoke is before the discharge of air outlet through drive fan, through the filtration of the first filter piece and the second filter piece of oil smoke processing mechanism, effectively filters the pollutant in the oil smoke, and then reduces the pollution of the oil smoke of being discharged by the air outlet to outdoor environment.

Description

Smoke exhaust ventilator

Technical Field

The utility model relates to a kitchen appliance technical field especially relates to range hood.

Background

With the development of economic technology, the range hood as a kitchen appliance is widely applied to daily life of people, and the problem that the indoor and outdoor environment is polluted by oil smoke is more and more concerned by people. The traditional range hood absorbs oil smoke through a fan and separates oil droplets by utilizing the rotating speed of the fan. However, the traditional range hood has poor filtering effect, which causes the oil smoke to be discharged out of the room and causes pollution.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the poor problem of oil smoke separation effect, provided a range hood, this range hood can reach and improve the filterable effect of oil smoke, and then realizes reducing the technological effect to the pollution of outdoor environment.

A range hood, the range hood comprising:

the air conditioner comprises a shell, an air duct and a fan, wherein an air inlet and an air outlet which are respectively communicated with the air duct are formed in the shell;

the driving fan is arranged in the air duct and used for providing power for enabling the oil smoke to flow from the air inlet to the air outlet; and

oil smoke processing mechanism, oil smoke processing mechanism set up in the wind channel, and be located drive fan with between the air intake, oil smoke processing mechanism includes that filter fan, first filter piece and second filter piece, filter fan is formed with into wind gap and air exit, go into the wind gap with the air intake intercommunication, the air exit corresponds to drive fan, first filter piece set up in go into wind gap department and cover go into the wind gap, second filter piece set up in air exit department and cover the air exit.

In one embodiment, the oil fume treatment mechanism is spaced from the inner wall of the air duct, and the filter fan is electrically connected with the driving fan in parallel; or

The filtering fan is electrically connected with the driving fan in series.

In one embodiment, the number of the oil fume treatment mechanisms is at least two, different oil fume treatment mechanisms are all arranged in the air duct and are positioned between the driving fan and the air inlet, and the air outlet of the filtering fan of one oil fume treatment mechanism is communicated with the air inlet of the filtering fan of the other adjacent oil fume treatment mechanism.

In one embodiment, the range hood further includes an air duct, one end of the air duct is connected to the air outlet of one of the oil smoke treatment mechanisms, and the other end of the air duct is connected to the air inlet of another adjacent oil smoke treatment mechanism.

In one embodiment, the first filter member includes a first filter disposed at and covering the air inlet.

In one embodiment, the first filter element further comprises a first adsorption layer, the first adsorption layer is stacked with the first filter screen, and the first adsorption layer is located on the side of the first filter screen facing the filter fan.

In one embodiment, the second filter member includes a second adsorption layer disposed at and covering the air outlet.

In one embodiment, the second filter element further includes a second filter mesh, the second filter mesh is stacked on the second adsorption layer, and the second filter mesh is disposed on a side of the second adsorption layer facing away from the filter fan.

In one embodiment, the first filter element is detachably disposed at the air inlet; and/or

The second filter member is detachably disposed at the air outlet.

In one embodiment, the filter fan is a centrifugal fan.

In one embodiment, the oil fume treatment mechanism comprises an installation shell, the filter fan is arranged in the installation shell, the installation shell is installed on the inner wall of the machine shell, and the installation shell is provided with a first opening communicated with the air inlet and a second opening communicated with the air outlet.

In one embodiment, the range hood further includes a lifting mechanism, the oil smoke treatment mechanism is disposed on the lifting mechanism and located in the air duct, and the lifting mechanism is configured to drive the oil smoke treatment mechanism to move between the driving fan and the air inlet.

In one embodiment, the range hood further includes a controller, and the filter fan and the driving fan are respectively electrically connected to the controller.

In one embodiment, the range hood further includes a check valve disposed at the air outlet, and the flow direction allowed by the check valve is a direction in which the air outlet is far away from the air inlet.

When the range hood is used, the driving fan is arranged in the air duct of the shell, and the oil smoke treatment mechanism is arranged in the air duct and is positioned between the driving fan and the air inlet. When oil smoke needs to be sucked, the driving fan is started, power is provided for the oil smoke to flow by the driving fan, and the oil smoke can conveniently enter the air channel from the air inlet. And further starting a filter fan of the oil fume treatment mechanism, so that the oil fume entering the air flue can be sucked into the filter fan through the suction inlet after being filtered by the first filter piece and is discharged through the second filter piece through the air outlet. The driving fan can further discharge the oil smoke passing through the oil smoke treatment mechanism through the air outlet. Because the oil smoke is before the discharge of air outlet through drive fan, through the filtration of the first filter piece and the second filter piece of oil smoke processing mechanism, effectively filters the pollutant in the oil smoke, and then reduces the pollution of the oil smoke of being discharged by the air outlet to outdoor environment. Meanwhile, the driving fan and the filtering fan can absorb oil smoke simultaneously, so that the oil smoke suction efficiency can be improved, the oil smoke capture efficiency is improved, and the pollution of the oil smoke to the kitchen environment is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

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

Furthermore, the drawings are not to scale of 1:1, and the relative dimensions of the various elements in the drawings are drawn only by way of example and not necessarily to true scale. In the drawings:

fig. 1 is a schematic structural diagram of a range hood in an embodiment;

fig. 2 is a cross-sectional view of the lampblack treatment mechanism in fig. 1;

fig. 3 is a schematic structural view of the lampblack treatment mechanism in fig. 2 without an installation shell;

fig. 4 is a schematic structural diagram of a control panel of the range hood according to an embodiment.

Description of reference numerals:

10. the range hood comprises a range hood body 100, a machine shell, 110, an air duct, 120, an air inlet, 130, an air outlet, 200, a driving fan, 210, a driving motor, 220, a driving fan blade, 230, a driving volute, 300, an oil fume processing mechanism, 310, a filtering fan, 311, an air inlet, 312, an air outlet, 313, a filtering motor, 314, a filtering fan blade, 315, a filtering volute, 320, a first filtering piece, 330, a second filtering piece, 340, a mounting shell, 342, a heat dissipation port, 350, a mounting support, 400, an air duct, 500, a check valve, 600, an oil screen, 700, an oil cup, 800, a control panel, 810, a starting button, 820, an oil fume processing button, 830, a timer, 840, a filtering starting button, 850, an alarm, 860 and a stopping button.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1 and 2, the range hood 10 according to an embodiment of the present invention can at least improve the filtering efficiency of the oil smoke and reduce the air pollution. Specifically, the range hood 10 includes a casing 100, a driving fan 200, and a lampblack treatment mechanism 300.

An air duct 110 is formed in the casing 100, and an air inlet 120 and an air outlet 130 which are respectively communicated with the air duct 110 are formed on the casing 100; the driving fan 200 is disposed in the air duct 110, and the driving fan 200 is used for providing power for enabling oil smoke to flow from the air inlet 120 to the air outlet 130; oil smoke processing mechanism 300 set up in the wind channel 110, and be located driving fan 200 with between the air intake 120, oil smoke processing mechanism 300 includes that filtering fan 310, first filter piece 320 and second filter piece 330, filtering fan 310 is formed with income wind gap 311 and air exit 312, go into the wind gap 311 with air intake 120 intercommunication, air exit 312 corresponding to driving fan 200, first filter piece 320 set up in go into wind gap 311 department and cover go into wind gap 311, second filter piece 330 set up in air exit 312 department and cover air exit 312.

When the range hood 10 is used, the driving fan 200 is disposed in the air duct 110 of the casing 100, and the oil smoke treatment mechanism 300 is disposed in the air duct 110 and between the driving fan 200 and the air inlet 120. When oil smoke needs to be sucked, the driving fan 200 is started, and the driving fan 200 is used for providing power for the flowing of the oil smoke, so that the oil smoke can conveniently enter the air duct 110 from the air inlet 120. The filter fan 310 of the lampblack processing mechanism 300 is further activated, so that lampblack entering the air duct 110 can be filtered by the first filter 320, sucked into the filter fan 310 through the suction port, and exhausted through the second filter 330 through the exhaust port 312. The driving fan 200 can further discharge the lampblack passing through the lampblack treatment mechanism 300 through the air outlet 130. Because the oil smoke is filtered by the first filter 320 and the second filter 330 of the oil smoke processing mechanism 300 before being exhausted from the air outlet 130 by the driving fan 200, the pollutants in the oil smoke are effectively filtered, and the pollution degree of the oil smoke exhausted from the air outlet 130 to the outdoor environment is further reduced. Meanwhile, as the driving fan 200 and the filtering fan 310 can simultaneously suck the oil smoke, the oil smoke sucking efficiency can be improved, the oil smoke capturing efficiency can be improved, and the pollution of the oil smoke to the kitchen environment can be reduced.

In one embodiment, the oil smoke treatment mechanism 300 is spaced apart from the inner wall of the air duct 110, and the filter fan 310 is electrically connected in parallel with the driving fan 200. Because there is a gap between the oil smoke processing mechanism 300 and the inner wall of the air duct 110, if only the driving fan 200 is started, but the oil smoke processing mechanism 300 is not started, the oil smoke can enter the driving fan 200 from the gap between the oil smoke processing mechanism 300 and the inner wall of the air duct 110, and the driving fan 200 discharges the oil smoke through the air outlet 130. The filtering fan 310 is electrically connected with the driving fan 200 in parallel, so that various choices can be provided for users, the oil fume treatment mechanism 300 can be selectively started or not started according to the use condition, and the use applicability is improved.

In another embodiment, the filter fan 310 is electrically connected in series with the drive fan 200. And then when getting into the start-up state, can be convenient for make filter fan 310 and driving fan 200 start-up operation simultaneously, the convenient in-process that uses, effective filtration oil smoke. Or, the filter fan 310 is electrically connected in parallel with the driving fan 200, and when the filter fan 310 and the driving fan 200 enter a start state, the filter fan 310 and the driving fan 200 are started to operate simultaneously.

Specifically, there is no space between the oil smoke treatment mechanism 300 and the inner wall of the air duct 110, so that the oil smoke entering the driving fan 200 is firstly filtered by the oil smoke treatment mechanism 300, and the stability of filtering the oil smoke is further improved. In another embodiment, the lampblack treatment mechanism 300 can be further connected to the driving fan 200 through an air pipe, so that the filtered lampblack discharged from the lampblack treatment mechanism 300 enters the driving fan 200 along the air pipe and is discharged out of the room through the air outlet 130 by the driving fan 200.

In an embodiment, the range hood 10 further includes a controller, and the filter fan 310 and the driving fan 200 are electrically connected to the controller respectively. By providing the controller, it is convenient to control the operation states of the filter fan 310 and the driving fan 200.

In an embodiment, the number of the oil smoke processing mechanisms 300 is at least two, different oil smoke processing mechanisms 300 are all disposed in the air duct 110 and located between the driving fan 200 and the air inlet 120, and an air outlet 312 of a filter fan 310 of one oil smoke processing mechanism 300 is communicated with an air inlet 311 of another adjacent filter fan 310 of another oil smoke processing mechanism 300. Because the number of the oil smoke processing mechanisms 300 is at least two, and each oil smoke processing mechanism 300 comprises the first filter piece 320 and the second filter piece 330, the oil smoke can be filtered by the first filter piece 320 and the second filter piece 330 of different oil smoke processing mechanisms 300, the filtering efficiency of the oil smoke is further enhanced, and the pollution to the air is reduced.

In this embodiment, the number of the oil smoke processing mechanisms 300 is two, and the two oil smoke processing mechanisms 300 are disposed along the oil smoke flowing direction, so that the oil smoke enters another oil smoke processing mechanism 300 for filtering after being filtered by one oil smoke processing mechanism 300, and the filtering effect on the oil smoke is effectively improved. In another embodiment, the number of the lampblack treatment mechanisms 300 can be three, four, or other numbers. Or the lampblack treatment mechanism 300 can be one.

In an embodiment, the range hood 10 further includes an air duct 400, one end of the air duct 400 is connected to the air outlet 312 of one of the oil smoke processing mechanisms 300, and the other end of the air duct 400 is connected to the air inlet 311 of another adjacent oil smoke processing mechanism 300. Two adjacent oil smoke treatment mechanisms 300 can be effectively connected through the arrangement of the air pipes 400, so that oil smoke can be circulated to the adjacent other oil smoke treatment mechanism 300 along the air channel 110 by one oil smoke treatment mechanism 300, the flowing stability of the oil smoke is further improved, and the stability of oil smoke filtration is improved. In the present embodiment, the adjacent means not an absolute adjacent in spatial position but an adjacent relationship in the fume flow direction.

In other embodiments, the air duct 110 may be omitted, so that the air outlet 312 of one oil smoke processing mechanism 300 is connected to the air inlet 311 of another oil smoke processing mechanism 300, i.e. the two oil smoke processing mechanisms 300 can be communicated. Alternatively, different oil smoke processing mechanisms 300 are all disposed in the air duct 110, and the air duct 110 effectively limits the oil smoke flowing direction, so that the oil smoke can flow from one oil smoke processing mechanism 300 to another oil smoke processing mechanism 300.

In an embodiment, the range hood 10 further includes a lifting mechanism, the oil smoke treatment mechanism 300 is disposed on the lifting mechanism and located in the air duct 110, and the lifting mechanism is configured to drive the oil smoke treatment mechanism 300 to move between the driving fan 200 and the air inlet 120. The distance between the oil smoke treatment mechanism 300 and the air inlet 120 can be adjusted by arranging the lifting mechanism, so that the position of the oil smoke treatment mechanism 300 relative to the air inlet 120 can be conveniently adjusted according to the concentration of oil smoke, the heating firepower of a cooking appliance and the like, and the use convenience is further improved. In other embodiments, the lifting mechanism can be omitted, and the lampblack processing mechanism 300 is directly fixed in the air duct 110.

Referring to fig. 2, in an embodiment, the first filter 320 includes a first filter disposed at the air inlet 311 and covering the air inlet 311. Through setting up first filter screen, can effectively filter oil drops and/or other pollutants etc. in the oil smoke to make partial or whole oil drops and/or other pollutants can be filtered to one side that first filter screen dorsad filtered fan 310 by first filter screen, reduce or avoid oil drops and/or other pollutants to enter into filtered fan 310. For example, the first filter may be a honeycomb filter. Alternatively, the first filter may have other mesh structures as long as the effect of filtering oil droplets and/or other contaminants is achieved.

In one embodiment, the first filter 320 further includes a first adsorption layer, the first adsorption layer is stacked with the first filter, and the first adsorption layer is located on a side of the first filter facing the filter fan 310. Because first adsorption layer is located first filter screen orientation filter fan 310's one side, and then utilize first adsorption layer can effectively adsorb oil and/or other pollutant etc. further reduce oil and/or other pollutant and enter into filter fan 310 the possibility in, guarantee filter fan 310's clean degree.

Specifically, the first adsorption layer is an activated carbon layer, so that the oil smoke can be filtered by the activated carbon layer. The activated carbon layer has a good filtering and absorbing effect, so that the filtering effect of the first filter element 320 is improved.

In one embodiment, a first accommodating cavity is formed in the first adsorption layer, a first fan blade is arranged in the first accommodating cavity, and the first fan blade can controllably rotate or stop rotating in the first accommodating cavity. Specifically, the number of the first fan blades is at least two, and each first fan blade can rotate or stop rotating in the first accommodating cavity in a controllable mode. So, at range hood 10 during operation, can control first fan blade and rotate at first holding the intracavity, the oil smoke is when first fan blade, and the greasy dirt that contains in it easily separates out from the oil smoke under the centrifugal force effect of first fan blade, and then is convenient for by first adsorption layer absorption, improves adsorption effect.

In one embodiment, the first filter 320 is detachably disposed at the air inlet 311. Cleaning or replacement of the first filter member 320 is facilitated by removing the first filter member 320. For example, since the first adsorption layer is used to adsorb oil, the first filter member 320 may be removed and replaced after a certain period of use. And first filter screen is used for filtering the greasy dirt, is convenient for wash first filter screen through dismantling first filter screen.

Referring to fig. 2 and 3, in an embodiment, the second filter 330 includes a second adsorption layer disposed at the air outlet 312 and covering the air outlet 312. Because the second adsorbed layer set up in exhaust outlet 312 department, and then utilize the second adsorbed layer can effectively adsorb oil and/or other pollutants etc. reduce or avoid oil and/or other pollutants to drip into possibility in filtering fan 310, guarantee filtering fan 310's clean degree.

Specifically, the second adsorption layer is an activated carbon layer, so that the oil smoke can be filtered by the activated carbon layer. The activated carbon layer has a good filtering and absorbing effect, so that the filtering effect of the second filter member 330 is improved.

In one embodiment, a second containing cavity is formed in the second adsorption layer, a second fan blade is arranged in the second containing cavity, and the second fan blade can rotate or stop rotating in the second containing cavity in a controllable mode. Specifically, the number of the second fan blades is at least two, and each second fan blade can rotate or stop rotating in the second accommodating cavity in a controllable mode. When the range hood 10 works, the second fan blade can be controlled to rotate in the second containing cavity, and when oil smoke passes through the second fan blade, oil stains contained in the oil smoke are easily separated from the oil smoke under the centrifugal force action of the second fan blade, so that the oil smoke is conveniently adsorbed by the second adsorption layer, and the adsorption effect is improved.

In an embodiment, the second filter 330 further includes a second filter, the second filter is stacked on the second adsorption layer, and the second filter is disposed on a side of the second adsorption layer opposite to the filter fan 310. Through setting up the second filter screen, oil drops and/or other pollutants etc. in the ability effective filtration oil smoke to make partial or whole oil drops and/or other pollutants can be filtered to the second filter screen by the second filter screen and be dorsad filter fan 310's one side, reduce or avoid oil drops and/or other pollutants to enter into filter fan 310. For example, the second filter may be a honeycomb filter. Alternatively, the second filter may have other mesh structures as long as the effect of filtering oil droplets and/or other contaminants is achieved.

In one embodiment, the second filter 330 is detachably disposed at the exhaust outlet 312. Cleaning or replacement of the second filter member 330 is facilitated by removing the second filter member 330. For example, since the second adsorption layer is used to adsorb oil, the second filter member 330 may be detached and replaced after a certain period of use. And the second filter screen is used for filtering greasy dirt, is convenient for wash first filter screen through dismantling the second filter screen.

Referring to fig. 2 and fig. 3, in an embodiment, the filter fan 310 includes a filter motor 313 and a filter blade 314 connected to the filter motor 313, and the filter motor 313 can drive the filter blade 314 to rotate. Specifically, the filter fan 310 further includes a filter volute 315, the filter fan 314 is disposed in the filter volute 315, and the air inlet 311 and the air outlet 312 are disposed on the filter volute 315. And the filter motor 313 is disposed on the filter volute 315 through a fixing bracket. The arrangement of the filter volute 315 facilitates the arrangement of the filter motor 313 and the filter fan 314.

In this embodiment, the filter fan 310 is a centrifugal fan. In other embodiments, the filter fan 310 may also be an axial flow fan or other fans capable of filtering oil smoke.

As shown in fig. 2, in an embodiment, the lampblack processing mechanism 300 includes an installation shell 340, the filter fan 310 is disposed in the installation shell 340, the installation shell 340 is installed on the inner wall of the casing 100, and a first opening communicated with the air inlet 311 and a second opening communicated with the air outlet 312 are disposed on the installation shell 340. By providing the mounting case 340, the installation of the filter fan 310 in the air duct 110 of the housing 100 is further facilitated.

Optionally, filter fan 310 is mounted within mounting housing 340 by mounting bracket 350. In this embodiment, the filter fan 310 is mounted within the mounting housing 340 by an "L" shaped mounting bracket 350. In other embodiments, the filter fan 310 may also be mounted directly on the inner wall of the mounting case 340.

Specifically, the heat dissipation opening 342 is formed in the mounting shell 340, so that heat dissipation of the filter fan 310 is facilitated by the heat dissipation opening 342, and the service life of the filter fan 310 can be prolonged. Further, the heat dissipation openings 342 are plural, and the plurality of heat dissipation openings 342 are arranged at intervals, so that the heat dissipation effect on the filter fan 310 can be further improved.

Referring to fig. 1, in an embodiment, the driving fan 200 includes a driving motor 210 and a driving blade 220 connected to the driving motor 210, and the driving motor 210 can drive the driving blade 220 to rotate. Specifically, the driving fan 200 further includes a driving volute 230, and the driving fan 220 is disposed in the driving volute 230. And the driving motor 210 is disposed on the driving volute 230 through a fixing bracket. The driving volute 230 is arranged to facilitate the arrangement of the driving motor 210 and the driving fan 220. In the present embodiment, the driving fan 200 is a centrifugal fan. In other embodiments, the driving fan 200 may also be an axial fan or other fan capable of providing power for the flow of the cooking fumes.

In an embodiment, the range hood 10 further includes a check valve 500, the check valve 500 is disposed at the air outlet 130, and a flow direction allowed by the check valve 500 is a direction in which the air outlet 130 is far away from the air inlet 120. By arranging the check valve 500 at the air outlet 130, the possibility of backflow of the discharged oil smoke or gas can be effectively reduced, and then the outside air is prevented from entering the range hood 10 from the air outlet 130, and the air inlet 120 enters the room.

In an embodiment, the range hood 10 further includes an oil screen 600, and the oil screen 600 is connected to the casing 100 and located at the air inlet 120. When the range hood works, the driving fan 200 is started, negative pressure is generated on one side of the air inlet 120, indoor oil smoke is sucked, the oil smoke passes through the oil screen 600, oil drops and/or other pollutants contained in the oil smoke can be filtered by the oil screen 600, and then the oil smoke enters the air channel 110 and continues to be filtered by the oil smoke treatment mechanism 300.

In an embodiment, the range hood 10 further includes an oil cup 700, the oil cup 700 is connected to the casing 100 and is communicated with the air inlet 120, and the oil cup 700 is used for receiving oil stains flowing out from the air inlet 120. During operation, the oil filtered by the first filter 320 and the second filter 330 enters the air duct 110 under the action of gravity, and flows from the air duct 110 to the air inlet 120 and then flows to the oil cup 700 for collection. Further, the oil on the oil screen 600 can also flow into the oil cup 700 to be collected.

Referring to fig. 1 and 4, in an embodiment, the range hood 10 further includes a control panel 800, the control panel 800 is disposed on an outer wall of the casing 100, and the control panel 800 is electrically connected to the controller. The control panel 800 is provided to facilitate the operation of the user, and thus to facilitate the control of the operation of the range hood 10.

Specifically, the control panel 800 is provided with a start button 810 and a lampblack treatment button 820. The start button 810 is electrically connected to the driving fan 200, and the oil smoke treatment button 820 is electrically connected to the filter fan 310. The driving fan 200 can be controlled to start by pressing the start button 810, and the filtering fan 310 can be controlled to start by pressing the lampblack treatment button 820. In other embodiments, the smoke treating button 820 may be omitted, and the filter fan 310 may be activated when the driving fan 200 is activated.

Optionally, a timer 830 is further disposed on the control panel 800, and the timer 830 is electrically connected to the filter fan 310 through the controller. The timer 830 is arranged to facilitate the timing operation of the filter fan 310, so as to control the operation time of the filter fan 310, thereby improving the convenience of use.

Optionally, a filter start button 840 is further disposed on the control panel 800, and the filter start button 840 is electrically connected to the first fan blade of the first filter 320 and the second fan blade of the second filter 330 through the controller. The first fan blade and the second fan blade can be conveniently controlled and started by arranging the filter starting button 840, and then the oil smoke filtering effect is improved. In another embodiment, the filter activation button 840 may be omitted, and when the filter blower 310 is activated, the first fan blade and the second fan blade are activated at the same time.

Optionally, an alarm 850 may be further disposed on the control panel 800, and the alarm 850 is electrically connected to the controller. When the driving fan 200 and/or the filtering fan 310 cannot be normally started, the alarm 850 may be triggered, and the user is reminded of the abnormal use of the extractor hood 10 by the alarm 850. In other embodiments, the alarm 850 may also be omitted.

Optionally, a stop button 860 may be further disposed on the control panel 800, and the stop button 860 may facilitate controlling the driving fan 200 and the filtering fan 310 to stop operating.

In an embodiment, a method for controlling a range hood 10 is provided, wherein the range hood 10 may be the range hood 10 in any of the above embodiments. Specifically, the control method of the range hood 10 includes the following steps:

step S100: acquiring a starting signal;

200, step of: starting the driving fan 200 according to the starting signal;

step S300: acquiring an oil fume processing signal;

step S400: and starting the filter fan 310 according to the oil smoke processing signal.

According to the control method of the range hood 10, when oil smoke needs to be sucked, the driving fan 200 is started after the starting signal is acquired, and the driving fan 200 is used for providing power for the flowing of the oil smoke, so that the oil smoke can conveniently enter the air duct 110 from the air inlet 120. According to the use requirement, the oil smoke treatment is triggered, and then the filter fan 310 of the oil smoke treatment mechanism 300 is started after the oil smoke treatment signal is obtained, so that the oil smoke entering the air duct 110 can be filtered by the first filter 320, sucked into the filter fan 310 through the suction port, and exhausted through the second filter 330 through the exhaust port 312. The driving fan 200 can further discharge the lampblack passing through the lampblack treatment mechanism 300 through the air outlet 130. Before the oil smoke is discharged from the air outlet 130 through the driving fan 200, the oil smoke is filtered by the first filter 320 and the second filter 330 of the oil smoke processing mechanism 300, so as to effectively filter the pollutants in the oil smoke, thereby reducing the pollution of the oil smoke discharged from the air outlet 130 to the outdoor environment. Meanwhile, as the driving fan 200 and the filtering fan 310 can simultaneously suck the oil smoke, the oil smoke sucking efficiency can be improved, the oil smoke capturing efficiency can be improved, and the pollution of the oil smoke to the kitchen environment can be reduced.

The control method in the above embodiment may further select not to start the filter fan 310 of the oil smoke treatment mechanism 300 after the driving fan 200 is started according to the use condition, so as to provide a plurality of choices for the user, and may select to start or not start the oil smoke treatment mechanism 300 according to the use condition, thereby improving the use applicability.

In one embodiment, step S300: the step of obtaining the oil smoke processing signal further comprises the following steps:

the first fan blade of the first filter 320 and the second fan blade of the second filter 330 are activated according to the lampblack processing signal.

Because the first fan blade is arranged in the first filter member 320, the first fan blade is driven to further improve the filtering effect of the first filter member 320. Because the second fan blade is arranged in the second filter member 330, the second fan blade is driven to further improve the filtering effect of the second filter member 330.

In one embodiment, step S400: before the step of starting the filter fan 310 according to the fume processing signal, the method further includes:

step S500: acquiring set time;

step S600: and starting the filter fan 310 to work for the set time according to the oil smoke processing signal.

When the range hood is used, the set time can be set according to the use condition and the use requirement, and then after the set time is obtained, the filter fan 310 is started to work for the set time, so that the duration that the filter fan 310 can filter the set time is ensured, and the intelligence of the range hood 10 in the use process is further improved.

In one embodiment, step S600: after the step of starting the filter fan 310 to operate for the set time according to the oil smoke processing signal, the method further comprises the following steps:

controlling the filter fan 310 to stop operating;

and controlling the driving fan 200 to stop running.

When the filtering fan 310 is operated for a set time, the oil smoke suction operation is considered to be completed, and the automatic closing of the range hood 10 is realized by stopping the operation of the filtering fan 310 and the driving fan 200, so that the intelligence of the use of the range hood 10 is further improved.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A range hood, characterized in that, range hood includes:

2. The range hood of claim 1, wherein a gap is provided between the oil fume treatment mechanism and the inner wall of the air duct, and the filter fan is electrically connected in parallel with the driving fan; or

The filtering fan is electrically connected with the driving fan in series.

3. The range hood of claim 1, wherein the number of the oil smoke treatment mechanisms is at least two, different oil smoke treatment mechanisms are disposed in the air duct and located between the driving fan and the air inlet, and an air outlet of a filter fan of one oil smoke treatment mechanism is communicated with an air inlet of a filter fan of another adjacent oil smoke treatment mechanism.

4. The range hood of claim 3, further comprising an air duct, wherein one end of the air duct is connected to the air outlet of one of the oil smoke treatment mechanisms, and the other end of the air duct is connected to the air inlet of another adjacent oil smoke treatment mechanism.

5. The range hood of claim 1, wherein the first filter comprises a first filter disposed at and covering the air inlet.

6. The range hood of claim 5, wherein the first filter further comprises a first adsorption layer, the first adsorption layer is stacked with the first filter, and the first adsorption layer is located on a side of the first filter facing the filter fan.

7. The range hood of claim 1, wherein the second filter element comprises a second adsorbent layer disposed at and covering the air outlet.

8. The range hood of claim 7, wherein the second filter further comprises a second filter, the second filter is stacked with the second adsorption layer, and the second filter is disposed on a side of the second adsorption layer opposite to the filter fan.

9. The range hood of any one of claims 1-8, wherein the first filter is removably disposed at the air inlet; and/or

The second filter member is detachably disposed at the air outlet.

10. The range hood of any one of claims 1-8, wherein the filter fan is a centrifugal fan.

11. The range hood of any one of claims 1 to 8, wherein the lampblack treatment mechanism comprises a mounting shell, the filter fan is disposed in the mounting shell, the mounting shell is mounted on the inner wall of the housing, and the mounting shell is provided with a first opening communicated with the air inlet and a second opening communicated with the air outlet.

12. The range hood of any one of claims 1 to 8, further comprising a lifting mechanism, wherein the fume treatment mechanism is disposed on the lifting mechanism and located in the air duct, and the lifting mechanism is configured to drive the fume treatment mechanism to move between the driving fan and the air inlet.

13. The range hood of any one of claims 1-8, further comprising a controller, wherein the filter fan and the driving fan are electrically connected to the controller, respectively.

14. The range hood of any one of claims 1 to 8, further comprising a check valve disposed at the air outlet, wherein a flow direction allowed by the check valve is a direction in which the air outlet is away from the air inlet.