CN111336559A - Range hood and oil stain cleaning method thereof - Google Patents

Abstract

The invention relates to the technical field of household appliances, in particular to a range hood and an oil stain cleaning method thereof. The range hood comprises a range hood main body, wherein a smoke inlet for absorbing oil smoke is formed in the range hood main body; the oil smoke filtering membrane is arranged on the range hood main body and covers the smoke inlet; and filtration membrane auto-change over device, install in the lampblack absorber main part, with the cooperation of oil smoke filtration membrane, a switching update for oil smoke filtration membrane, range hood is at the during operation, the oil smoke that gets into in the lampblack absorber main part can be adsorbed by oil smoke filtration membrane and filter, then get into the inside discharge of range hood again, the greasy dirt accumulates on oil smoke filtration membrane, and then range hood is after long-time the use, when handling accumulating the oil smoke, only need operate filtration membrane auto-change over device and switch over oil smoke filtration membrane, insert new oil smoke filtration membrane can, the user need not to wash the lampblack absorber main part in this in-process, the convenience that has brought for user's use.

Description

Range hood and method for cleaning oil stains

technical field

The invention relates to the technical field of household appliances, in particular to a range hood and a method for cleaning oil stains thereof.

Background technique

At present, the range hoods on the market will accumulate oil stains on the surface and inside of the range hoods after being used for a long time by the user, especially on the fume guide plate of the range hoods, a large amount of oil stains will accumulate, which needs to be cleaned regularly by the user. inconvenience to use.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a range hood and a method for cleaning oil stains, so as to solve the problem of oil stains on the surface of the range hood and inconvenient cleaning operations in the prior art.

To achieve the above purpose, the present invention provides a range hood, comprising:

The main body of the range hood is provided with a fume inlet for absorbing oil fume;

an oil fume filter membrane, which is arranged on the main body of the oil fume machine and covers the fume inlet; and

The filter membrane switching device is installed on the main body of the range hood, cooperates with the range hood filter membrane, and is used for switching and updating the range hood filter membrane.

Further, the filter membrane switching device includes:

The first filter membrane fixing wheel is rotatably arranged on one side of the main body of the range hood, and is used for the installation of an unused range hood filter membrane;

The second filter membrane fixing wheel, which is rotatably arranged on the other side of the range hood main body, is used for the installation of the used range hood filter membrane;

and a driving device for driving the first filter membrane fixing wheel and the second filter membrane fixing wheel to rotate in the same direction, under the driving of the driving device, the first filter membrane fixing wheel and the second filter membrane The oil fume filter membrane between the membrane fixing wheels can be switched from used to unused.

Further, the driving device is in driving cooperation with the second filter membrane fixing wheel.

Further, the driving device includes a motor and a rotating wheel matched with the motor, and the second filter membrane fixing wheel is fixed on the rotating wheel.

Further, the motor is a stepper motor, and the rotation distance of the stepper motor during the rotation period is equal to the distance between the first filter membrane fixing wheel and the second filter membrane fixing wheel.

Further, the filter membrane switching device further includes a transmission wheel arranged between the first filter membrane fixing wheel and the second filter membrane fixing wheel.

Further, the main body of the range hood includes a fume guide plate, and the filter membrane switching device and the fume filter membrane are installed on the fume guide plate.

Further, the range hood includes pressure detection devices arranged on the inside of the soot filter membrane and outside the soot filter membrane, for detecting the difference in wind pressure before and after the soot filter membrane.

Further, the range hood further includes a position sensor for detecting the moving distance of the soot filter membrane.

The present invention also provides a method for cleaning oil stains of a range hood, using the above range hood, comprising:

Obtain the wind resistance pressure parameter of the oil fume filter membrane;

comparing the wind resistance pressure parameter with the preset wind resistance pressure parameter;

determining whether the wind resistance pressure parameter exceeds the preset wind resistance pressure parameter;

If yes, switch the oil fume filter membrane through the filter membrane switching device;

If not, the oil fume filter membrane continues to be used.

Further, include:

Obtain the position parameters of the fume filter membrane during the switching and updating process;

Determine whether the fume filter membrane is moving during the switching and updating process;

If so, it is determined that the oil fume filter membrane is switched normally;

If not, it is determined that the oil fume filter membrane is used up and needs to be replaced.

The technical scheme of the present invention has the following advantages:

1. In the range hood provided by the present invention, when the range hood is working, the oil fume entering the main body of the range hood will first be adsorbed and filtered through the oil fume filter membrane covering the fume inlet, and then enter the interior of the range hood to be discharged, and the oil will be polluted. It is accumulated on the oil fume filter membrane, and when the range hood is used for a long time, when the accumulated oil fume is processed, it is only necessary to operate the filter membrane switching device to switch the oil fume filter membrane and connect to a new oil fume filter membrane. During the process, the user does not need to clean the main body of the range hood, which brings great convenience to the user and improves the user experience.

2. In the range hood provided by the present invention, under the drive of the driving device, the oil fume filter membrane between the first filter membrane fixed wheel and the second filter membrane fixed wheel is switched from used to unused, and the entire oil fume filter membrane The switching process does not require the user to perform disassembly and installation operations, which further brings convenience to the user to clean the oil fume.

3. In the method for cleaning oil fouling of a range hood provided by the present invention, the range hood can automatically identify the oil fume filtration by the oil fume filter membrane, and after a large amount of oil fume is accumulated in the oil fume filter membrane, it is convenient to detect the relevant accumulation and timely detect the oil fume. The filter membrane is replaced to ensure the reliable operation of the range hood.

4. In the method for cleaning oil fouling of a range hood provided by the present invention, the range hood can automatically identify the usage of the oil fume filter membrane, which is convenient for the user to replace the oil fume filter membrane as a whole after the oil fume filter membrane is used up, so as to ensure the oil fume suction. The reliable operation of the machine and the user's operation further bring convenience.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts. In the attached image:

FIG. 1 is a schematic structural diagram of a front view of a range hood in an embodiment of the present invention.

FIG. 2 is a schematic side view of the structure of the range hood shown in FIG. 1 .

FIG. 3 is a schematic structural diagram of the process flow of the oil stain cleaning method of the range hood shown in FIG. 1 .

Wherein, the reference signs in the above drawings are:

10. Main body of range hood; 20. Oil fume filter membrane; 31. First filter membrane fixing wheel; 32. Second filter membrane fixing wheel; 33. Rotating wheel; 34. Transmission wheel; 35. Support belt.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

As shown in FIG. 1 and FIG. 2 , the range hood in this embodiment includes a range hood main body 10 , the range hood main body 10 has a fume inlet for absorbing oil fume, and an oil fume filter film 20 is arranged on the range hood main body 10 , and cover the smoke inlet; and a filter membrane switching device, which is installed on the range hood body 10 and cooperates with the range hood filter membrane 20 to switch and update the range hood filter membrane 20, and then use the range hood in this embodiment, the range hood During operation, the oil fume entering the main body 10 of the range hood will first be adsorbed and filtered through the oil fume filter membrane 20 covering the fume inlet, and then enter the range hood to be discharged. After a long time of use, when dealing with the accumulated oil fume, the user only needs to operate the filter membrane switching device to switch the oil fume filter membrane 20, and connect the new oil fume filter membrane 20 to maintain the oil fume adsorption function. The cleaning of the main body 10 of the range hood brings great convenience to the user and improves the user experience.

Referring further to FIG. 2 , after the oil fume filter membrane 20 in this embodiment accumulates oil dirt, it can be switched and updated by the filter membrane switching device, so as to further ensure the oil fume adsorption function, and no cleaning operation by the user is required. Specifically, the oil fume filter membrane 20 in this embodiment is a flexible filter membrane, and the specific filter membrane switching device includes: a first filter membrane fixing wheel 31, which is rotatably arranged on one side of the range hood main body 10, and is used for the unused oil fume filter membrane 20. For installation, the specific oil fume filter membrane is wound on the first filter membrane fixing wheel 31 for 20 turns; the second filter membrane fixing wheel 32 is rotatably arranged on the other side of the range hood main body 10, and is used for the installed oil fume filter membrane 20. Specifically, the fume filter membrane is wound on the second filter membrane fixing wheel 32 for 20 turns; and the driving device that drives the first filter membrane fixing wheel 31 and the second filter membrane fixing wheel 32 to rotate in the same direction, under the driving of the driving device, The oil fume filter membrane 20 between the first filter membrane fixing wheel 31 and the second filter membrane fixing wheel 32 can be switched from used to unused. The cleaning of oil fume brings convenience.

Specifically, the oil fume filter membrane 20 in this embodiment can be made of a conventional non-woven fabric capable of filtering oil fume.

Specifically, in this embodiment, the oil fume filter membrane 20 is wound around the first filter membrane fixing wheel 31 and the second filter membrane fixing wheel 32 respectively.

Specifically, the driving device in this embodiment is in driving cooperation with the second filter membrane fixing wheel 32. When the driving device drives the second filter membrane fixing wheel 32 to rotate, it will drive the first filter membrane fixing wheel 31 to rotate at the same time.

Specifically, the driving device in this embodiment includes a motor and a rotating wheel 33 that cooperates with the motor. The second filter membrane fixing wheel 32 is fixed on the rotating wheel 33, and the motor drives the rotating wheel 33 to rotate, thereby driving the second filter membrane fixing wheel. 32 turn at the same time.

Preferably, the motor in this implementation is a stepper motor, and the rotation distance in the rotation cycle of the stepper motor is equal to the distance between the first filter membrane fixing wheel 31 and the second filter membrane fixing wheel 32 . When the membrane 20 is switched, it is only necessary to operate the stepping motor in the driving device to perform one cycle of driving, and then the switching of the oil fume filter membrane 20 can be realized, which is suitable for the subsequent operation of sucking oil fume.

Preferably, the filter membrane switching device further includes a transmission wheel 34 disposed between the first filter membrane fixing wheel 31 and the second filter membrane fixing wheel 32, so that the oil fume filter membrane 20 is stable and reliable during operation and switching. Preferably, the filter membrane switching device further includes a support belt 35 arranged at the bottom of the soot filter membrane 20, which further ensures the stability and reliability of the soot filter membrane 20 during operation and switching, and ensures the stability and reliability of the range hood during operation.

Specifically, the main body 10 of the range hood in this embodiment further includes a smoke guide plate, the filter membrane switching device and the oil fume filter membrane 20 are specifically installed and covered on the smoke guide plate, which not only reduces the accumulation of oil pollution inside the range hood, but also reduces the The accumulation of oil stains on the smoke guide.

Specifically, the range hood in this embodiment includes pressure detection devices disposed on the inside of the soot filter membrane 20 and on the outside of the soot filter membrane 20 , for detecting the difference in wind pressure before and after the soot filter membrane 20 .

Specifically, the range hood in this embodiment further includes a position sensor for detecting the moving distance of the oil fume filter membrane 20 .

As shown in FIG. 3 , the method for cleaning oil contamination of a range hood in this embodiment uses the range hood described above, including:

Obtain the wind resistance pressure parameter of the oil fume filter membrane 20;

Compare the wind resistance pressure parameters with the preset wind resistance pressure parameters;

Determine whether the wind resistance pressure parameter exceeds the preset wind resistance pressure parameter;

If so, switch the oil fume filter membrane 20 through the filter membrane switching device;

If not, the oil fume filter membrane 20 continues to be used.

By adopting the above method and steps, the range hood can automatically identify the oil fume filtering condition of the oil fume filter membrane 20. After a lot of oil fume is accumulated in the oil fume filter membrane 20, the relevant accumulation situation can be easily detected and the oil fume filter membrane 20 can be replaced in time to ensure that ensure the reliable operation of the range hood. In the above process, the oil fume filter membrane 20 can be automatically updated in an automatic cycle, so that the guide plate and the interior of the range hood are free of oil pollution, so that the user can use the range hood without cleaning.

The method for cleaning oil stains on a range hood in this embodiment further includes:

Obtain the position parameters of the fume filter membrane 20 during the switching and updating process;

Determine whether the fume filter membrane 20 is moving during the switching and updating process;

If so, it is determined that the oil fume filter membrane 20 is switched normally;

If not, it is determined that the oil fume filter membrane 20 is used up and needs to be replaced.

By adopting the above method and steps, the range hood can automatically identify the usage of the oil fume filter membrane 20, which is convenient for the user to replace the oil fume filter membrane 20 as a whole after the use of the oil fume filter membrane 20, ensures the reliable operation of the range hood, and improves the The user's use operation further brings convenience.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (11)

1. a range hood, is characterized in that, comprises: A range hood main body (10), the range hood main body (10) is provided with a fume inlet for absorbing oil fume; an oil fume filter membrane (20), arranged on the main body (10) of the oil fume machine and covering the fume inlet; and A filter membrane switching device is installed on the range hood main body (10), cooperates with the range hood filter membrane (20), and is used for switching and updating the range hood filter membrane (20). 2. The range hood according to claim 1, wherein the filter membrane switching device comprises: a first filter membrane fixing wheel (31), which is rotatably arranged on one side of the range hood main body (10), and is used for installation of an unused range hood filter membrane (20); The second filter membrane fixing wheel (32) is rotatably arranged on the other side of the range hood main body (10), and is used for installing the used range hood filter membrane (20); and a driving device for driving the first filter membrane fixing wheel (31) and the second filter membrane fixing wheel (32) to rotate in the same direction, under the driving of the driving device, the first filter membrane fixing wheel (32) The oil fume filter membrane (20) between (31) and the second filter membrane fixing wheel (32) is switched from used to unused. 3 . The range hood according to claim 2 , wherein the driving device is in driving cooperation with the second filter membrane fixing wheel ( 32 ). 4 . 4. The range hood according to claim 3, wherein the driving device comprises a motor, and a rotating wheel (33) matched with the motor, and the second filter membrane fixing wheel (32) is fixed on the on the rotating wheel (33). 5 . The range hood according to claim 4 , wherein the motor is a stepper motor, and the rotation distance in the rotation cycle of the stepper motor is the same as that of the first filter membrane fixing wheel (31) and the The distances between the second filter membrane fixing wheels (32) are equal. 6 . The range hood according to claim 2 , wherein the filter membrane switching device further comprises between the first filter membrane fixing wheel ( 31 ) and the second filter membrane fixing wheel ( 32 ). 7 . The transmission wheel (34) arranged between them. 7. The range hood according to any one of claims 1 to 6, wherein the range hood main body (10) comprises a smoke guide plate, a filter membrane switching device and the installation of the soot filter membrane (20) on the smoke guide. 8. The range hood according to any one of claims 1 to 6, characterized in that, the range hood comprises an inner side of the oil fume filter film (20) and an outer side of the oil fume filter film (20). The pressure detection device is used for detection of the wind pressure difference before and after the oil fume filter membrane (20). 9. The range hood according to any one of claims 1 to 6, characterized in that, the range hood further comprises a position sensor for detecting the moving distance of the oil fume filter membrane (20). 10. A method for cleaning oil stains of a range hood, characterized in that, using the range hood as claimed in any one of claims 1 to 9, comprising: obtaining the wind resistance pressure parameter of the oil fume filter membrane (20); comparing the wind resistance pressure parameter with the preset wind resistance pressure parameter; determining whether the wind resistance pressure parameter exceeds the preset wind resistance pressure parameter; If yes, switch the oil fume filter membrane (20) through the filter membrane switching device; If not, the oil fume filter membrane (20) continues to be used. 11. The method for cleaning oil contamination of a range hood according to claim 10, characterized in that, comprising: obtaining the position parameters of the oil fume filter membrane (20) during the switching and updating process; Determine whether the fume filter membrane (20) is moving during the switching and updating process; If so, it is determined that the oil fume filter membrane (20) is switched normally; If not, it is determined that the oil fume filter membrane (20) is used up and needs to be replaced.

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