Cleaning structure, range hood and its cleaning methods

Abstract

This invention discloses a cleaning structure, a range hood, and a cleaning method thereof. The cleaning structure includes a cleaning component and a turbidity sensor. The cleaning component is used to clean the interior of the range hood's main body, and the turbidity sensor is used to detect the turbidity of the wastewater generated inside the main body during cleaning. The cleaning component is configured to shut off when the turbidity sensor detects that the turbidity of the wastewater is lower than or equal to a preset turbidity value. The cleaning component can be used to clean the interior of the range hood's main body. When the turbidity of the wastewater is higher than the preset turbidity value, it indicates that there is still a significant amount of grease inside the main body, and cleaning can continue to ensure a more thorough removal of grease. When the turbidity of the wastewater is lower than or equal to the preset turbidity value, it indicates that there is less grease inside the main body or that it has been cleaned. At this point, the cleaning component can be shut off to reduce water and electricity waste. The turbidity sensor allows for monitoring the degree of cleaning of the interior of the main body, ensuring a more thorough cleaning and preventing resource waste.

Description

Technical Field

[0001] This invention relates to the field of kitchen equipment technology, and in particular to a cleaning structure, a range hood, and a cleaning method thereof. Background Technology

[0002] Heating or stir-frying food during cooking produces fumes, affecting the cooking experience and harming health. Range hoods remove these fumes, improving the kitchen environment, making them an essential household appliance. However, grease easily accumulates in range hoods during use. Grease, being organic, easily breeds bacteria. Without regular cleaning, it not only affects the fan's rotation and reduces the range hood's performance but also impacts daily cooking and health. Due to the high installation location of range hoods and the fact that grease mainly accumulates inside, cleaning and disassembly are inconvenient for users. Manual cleaning is difficult, and automatic cleaning systems, operating inside the range hood, make it impossible to assess the cleaning's effectiveness, leading to incomplete cleaning or excessively long cleaning times and waste. Summary of the Invention

[0003] Based on this, the present invention aims to overcome the problem that existing range hoods cannot determine the degree of cleaning during automatic cleaning, and provides a cleaning structure, range hood and cleaning method that can determine the degree of cleaning.

[0004] The technical solution is as follows:

[0005] A cleaning structure, comprising:

[0006] A cleaning component for cleaning the interior of the main body of the range hood; and

[0007] A turbidity sensor, used to detect the turbidity of wastewater generated during the cleaning of the interior of the main body;

[0008] The cleaning component is configured to be in a closed state when the turbidity sensor detects that the turbidity of the wastewater is lower than or equal to a preset turbidity value.

[0009] The aforementioned cleaning structure utilizes cleaning components to clean the interior of the range hood's main body. A turbidity sensor detects the turbidity of the wastewater generated during the cleaning process. When the turbidity of the wastewater exceeds a preset value, it indicates that a significant amount of grease remains inside the main body, and cleaning can continue to ensure a more thorough removal of the grease. When the turbidity of the wastewater is below or equal to the preset value, it indicates that there is less grease inside the main body or that it has been removed. At this point, the cleaning components are shut off to reduce water and electricity waste. Therefore, by using a turbidity sensor to detect the wastewater generated during the cleaning process, the range hood can understand the extent of cleaning of the main body's interior, ensuring a more thorough cleaning and preventing resource waste.

[0010] In one embodiment, the cleaning component is used to clean the impeller within the body.

[0011] In one embodiment, the cleaning assembly includes a nozzle disposed inside the impeller, the nozzle being arranged circumferentially along the impeller, the nozzle having a plurality of nozzles spaced apart circumferentially along the impeller, and the nozzles being oriented toward the impeller.

[0012] In one embodiment, the cleaning assembly further includes a water pump, a water supply pipe, and an atomizing nozzle. The water supply pipe is connected to the spray pipe via the atomizing nozzle. The water pump is used to deliver water from the water supply pipe to the spray pipe. The water pump is configured to be in a closed state when the turbidity sensor detects that the turbidity of the wastewater is lower than or equal to a preset turbidity value.

[0013] In one embodiment, the cleaning assembly further includes a heating element and a water tank, with the end of the water supply pipe away from the spray nozzle connected to the water tank.

[0014] The heating element is used to heat the water in the water tank;

[0015] Alternatively, the heating element may be used to heat the water in the water supply pipe.

[0016] In one embodiment, the water tank is equipped with a temperature sensor, the heating element is used to heat the water in the water tank, and / or the water tank is equipped with a liquid level sensor.

[0017] A range hood includes a main body and a cleaning structure as described in any of the above claims, wherein the main body has a smoke extraction duct, and the cleaning component is used to clean the interior of the main body.

[0018] The aforementioned range hood features an internal smoke extraction duct that can draw in cooking fumes. A cleaning component can be used to clean the interior of the main body. A turbidity sensor detects the turbidity of the wastewater generated during the cleaning process. When the turbidity of the wastewater exceeds a preset value, it indicates that there is still a significant amount of grease inside the main body, and cleaning can continue to ensure a more thorough removal of the grease. When the turbidity of the wastewater is below or equal to the preset value, it indicates that there is less grease inside the main body or that it has been cleaned. At this point, the cleaning component is turned off to reduce water and electricity waste. Therefore, by using a turbidity sensor to detect the wastewater generated during the cleaning process, the range hood can understand the degree of cleaning of the interior, ensuring a more thorough cleaning and preventing resource waste.

[0019] In one embodiment, the range hood further includes a drain pipe and an oil cup, the oil cup being located below the main body, the drain pipe being used to guide wastewater generated during cleaning of the interior of the main body into the oil cup, and the turbidity sensor being used to detect the turbidity of the wastewater passing through the drain pipe.

[0020] In one embodiment, the main body is provided with a volute, and the drain pipe is connected to the bottom of the volute.

[0021] A method for cleaning a range hood includes the following steps:

[0022] Clean the inside of the main body of the range hood;

[0023] Test the turbidity of the wastewater generated during the cleaning process;

[0024] When the turbidity of the wastewater is detected to be lower than or equal to the preset turbidity value, the cleaning of the interior of the range hood body will be stopped.

[0025] The above-described cleaning method for range hoods involves cleaning the interior of the main body and monitoring the turbidity of the wastewater generated during the cleaning process. When the turbidity of the wastewater is higher than the preset turbidity value, it indicates that there is still a significant amount of grease inside the main body, and cleaning can continue to ensure a more thorough removal of the grease. When the turbidity of the wastewater is lower than or equal to the preset turbidity value, it indicates that there is less grease inside the main body or that it has already been cleaned. At this point, the cleaning components can be turned off to reduce water and electricity waste. Therefore, by monitoring the turbidity of the wastewater generated during the cleaning process, the above-described cleaning method for range hoods can assess the extent of cleaning of the interior of the main body, ensuring a more thorough cleaning and preventing resource waste.

[0026] In one embodiment, the following steps are included before cleaning the interior of the range hood body:

[0027] The water level in the water tank is detected, and when the water level in the water tank is detected to be higher than the preset water level value, the water in the water tank is heated.

[0028] The water temperature in the water tank is detected. When the water temperature in the water tank is detected to be higher than the preset water temperature value, the water tank is controlled to output water for cleaning the interior of the main body.

[0029] In one embodiment, the step of cleaning the interior of the range hood body includes:

[0030] The impeller inside the main body of the range hood is driven to rotate, and the impeller is cleaned. Attached Figure Description

[0031] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a front view of the range hood described in an embodiment of the present invention after the smoke guide plate has been removed.

[0034] Figure 2 This is a rear view of the range hood described in an embodiment of the present invention after the vertical panel has been removed;

[0035] Figure 3 This is a perspective view of a portion of the structure of the range hood described in an embodiment of the present invention;

[0036] Figure 4 This is a side view of the range hood described in an embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 100. Cleaning component; 110. Nozzle; 111. Nozzle outlet; 120. Water supply pipe; 130. Water tank; 200. Turbidity sensor; 10. Main body; 11. Smoke duct; 12. Vertical plate; 13. Inclined plate; 13a. Air inlet; 14. Smoke guide plate; 20. Impeller; 30. Volute; 41. Drain pipe; 42. Oil cup. Detailed Implementation

[0039] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] like Figure 1 and Figure 2As shown, one embodiment discloses a cleaning structure, including a cleaning component 100 and a turbidity sensor 200. The cleaning component 100 is used to clean the interior of the main body 10 of the range hood, and the turbidity sensor 200 is used to detect the turbidity of the wastewater generated inside the main body 10. The cleaning component 100 is configured to be in a closed state when the turbidity sensor 200 detects that the turbidity of the wastewater is lower than or equal to a preset turbidity value.

[0041] The aforementioned cleaning structure utilizes the cleaning component 100 to clean the interior of the main body 10 of the range hood. The turbidity sensor 200 detects the turbidity of the wastewater generated during the cleaning process. When the turbidity of the wastewater is higher than the preset turbidity value, it indicates that there is still a lot of oil residue inside the main body 10, and cleaning can continue to ensure a more thorough cleaning of the oil residue inside the main body 10. When the turbidity of the wastewater is lower than or equal to the preset turbidity value, it indicates that there is less oil residue inside the main body 10 or that it has been cleaned. At this time, the cleaning component 100 is turned off to reduce the waste of water and electricity. Therefore, by setting the turbidity sensor 200 to detect the wastewater generated during the cleaning process, the range hood can understand the degree of cleaning of the interior of the main body 10, making the cleaning more thorough and preventing the waste of resources.

[0042] Optionally, after the oil stains inside the main body 10 are cleaned, they mix with water to form wastewater, and the aforementioned "turbidity" can characterize the amount of suspended particles in the wastewater.

[0043] In one embodiment, such as Figure 1 and Figure 2 As shown, the cleaning component 100 is used to clean the impeller 20 inside the main body 10. Since the range hood draws in fumes, the fumes pass through the impeller 20, and grease tends to accumulate on the impeller 20, affecting its rotation and lifespan. Therefore, the cleaning component 100 directly cleans the impeller 20, improving the cleaning effect and providing a better working environment for the impeller 20 after cleaning, thus ensuring effective fume extraction.

[0044] In other embodiments, the cleaning component 100 may also clean other parts within the main body 10, such as the inner wall of the main body 10 or the volute 30.

[0045] Alternatively, the cleaning component 100 may have a rotatable cleaning end, which is used to spray gas or liquid to clean the interior of the main body 10. By rotating the cleaning end, different areas inside the main body 10 can be cleaned. For example, the cleaning end can rotate 360°. At this time, the cleaning end can rotate after cleaning the impeller 20 and clean the inner wall of the main body 10 or the volute 30, thus cleaning the interior of the main body 10 more thoroughly.

[0046] Alternatively, the cleaning component 100 may have multiple cleaning sections, with different cleaning sections arranged opposite to different areas within the main body 10, for cleaning different areas. For example, one cleaning section may be arranged opposite to the impeller 20, and / or one cleaning section may be arranged opposite to the volute 30, and / or one cleaning section may be arranged opposite to the inner wall of the main body 10.

[0047] In one embodiment, such as Figure 1 and Figure 2 As shown, the cleaning assembly 100 includes a nozzle 110 disposed inside the impeller 20. The nozzle 110 is arranged circumferentially around the impeller 20 and has multiple nozzles 111 spaced apart circumferentially around the impeller 20, facing the impeller 20. The impeller 20 has a cylindrical structure with an opening on one side. The nozzle 110 can extend into the impeller 20 through the opening, allowing fluid to be sprayed onto the impeller 20 for cleaning through the nozzles 111. Since there are multiple nozzles 111 arranged circumferentially around the impeller 20, thorough cleaning of all parts of the impeller 20 can be achieved, improving cleaning efficiency and effectiveness.

[0048] The nozzle 110 can be either an annular or C-shaped structure, both of which can thoroughly clean all parts of the impeller 20.

[0049] Specifically, the nozzle 111 is located inside the nozzle 110. Although the nozzle 111 is oriented towards the impeller 20, the distance between the nozzle 111 and the part of the impeller 20 opposite to it is relatively far. This can prevent the cleaning fluid from passing through the impeller 20 too quickly, thus fully softening the oil stains on the impeller 20 and improving the cleaning effect.

[0050] In other embodiments, the nozzle 111 may also be located on the outside of the nozzle 110.

[0051] In one embodiment, such as Figures 1 to 3 As shown, the cleaning assembly 100 also includes a water pump, a water supply pipe 120, and an atomizing nozzle. The water supply pipe 120 is connected to the spray pipe 110 via the atomizing nozzle. The water pump is used to deliver water from the water supply pipe 120 to the spray pipe 110. The water pump is configured to shut off when the turbidity sensor 200 detects that the turbidity of the wastewater is lower than or equal to a preset turbidity value. The water pump can pump water from the water supply pipe 120 to the atomizing nozzle to form a water mist that enters the spray pipe 110 and is discharged from the spray outlet 111 on the spray pipe 110. At this time, the cleaning range is large, and it can fully contact the impeller 20, improving the cleaning effect. In addition, cleaning oil stains with water mist produces less wastewater, which is convenient for collection and storage.

[0052] In one embodiment, such as Figures 1 to 3As shown, the cleaning assembly 100 also includes a heating element and a water tank 130, with the end of the water supply pipe 120 away from the spray nozzle 110 connected to the water tank 130.

[0053] The heating element is used to heat the water in the water tank 130;

[0054] Alternatively, a heating element may be used to heat the water in the water supply pipe 120.

[0055] The heating element can heat the cleaning water, and hot water is more effective at cleaning oil stains, thus improving the efficiency and effectiveness of oil removal.

[0056] The heating element can be located outside the water tank 130 and attached to the water tank 130; or inside the water tank 130 and located at the bottom of the water tank 130; or inside the water supply pipe 120; or sleeved on the outside of the water supply pipe 120. All of these methods can heat the water.

[0057] Optionally, the water tank 130 is equipped with a water inlet pipe, which can be used to replenish water into the water tank 130.

[0058] Optionally, the water tank 130 is equipped with a detergent replenishment pipe, which can be used to replenish detergent into the water tank 130, thereby improving the cleaning effect on oil stains.

[0059] In one embodiment, a temperature sensor is provided inside the water tank 130, a heating element is used to heat the water in the water tank 130, and / or a liquid level sensor is provided inside the water tank 130. The temperature sensor can detect the water temperature in the water tank 130. When the water temperature does not reach a predetermined value, the heating element can be activated to heat the water in the water tank 130, thereby increasing the water temperature and improving the cleaning effect on oil stains. The liquid level sensor can detect the water level in the water tank 130. When the water level is too low, it can remind the user to add water, ensuring that the cleaning process can continue.

[0060] The cleaning assembly 100 also includes a controller. A turbidity sensor 200 and a temperature sensor are electrically connected to the controller. A water pump and a heating element are also electrically connected to the controller. When the turbidity sensor 200 detects a turbidity level lower than or equal to a preset turbidity value, it outputs a shut-off signal to the controller, which then shuts off the water pump, stopping the cleaning process. When the temperature sensor detects that the water temperature has not reached a preset value, it outputs a heating signal to the controller, which then activates the heating element to heat the water in the water tank 130. Specifically, when the temperature sensor detects that the water temperature has reached a preset high temperature value, it outputs a stop signal to the controller, which then shuts off the heating element to prevent the water in the water tank 130 from overheating and boiling, thus affecting normal use. The preset high temperature value is lower than the preset water temperature value, meaning the temperature sensor and heating element work together to keep the water temperature in the water tank 130 within a suitable range.

[0061] The cleaning component 100 also includes an alarm. A liquid level sensor is electrically connected to the alarm. When the water level measured by the liquid level sensor is lower than a predetermined value, the liquid level sensor outputs a signal to trigger the alarm, reminding the user to add water. Specifically, the alarm may be a warning horn and / or a warning light.

[0062] Optionally, two liquid level sensors are provided, which are spaced apart along the direction of gravity to detect different water levels in the water tank 130, preventing the water level in the water tank 130 from being too low or too high, and ensuring the normal use of the cleaning component 100.

[0063] Optionally, the controller can record the working time of the cleaning component 100 and the time interval between two cleaning operations of the cleaning component 100, so as to remind the user to clean the inside of the main body 10 in a timely manner next time.

[0064] like Figures 1 to 3 As shown, one embodiment discloses a range hood, including a main body 10 and a cleaning structure as described in any of the above embodiments. The main body 10 is provided with a smoke extraction duct 11, and a cleaning component 100 is used inside the main body 10.

[0065] In the aforementioned range hood, the smoke extraction duct 11 within the main body 10 can be used to extract cooking fumes. The cleaning component 100 can be used to clean the interior of the main body 10. The turbidity sensor 200 can detect the turbidity of the wastewater generated during the cleaning process. When the turbidity of the wastewater is higher than the preset turbidity value, it indicates that there is still a lot of oil stains inside the main body 10, and cleaning can continue to ensure that the oil stains inside the main body 10 are cleaned more thoroughly. When the turbidity of the wastewater is lower than or equal to the preset turbidity value, it indicates that there are fewer oil stains inside the main body 10 or that they have been cleaned. At this time, the cleaning component 100 is turned off to reduce the waste of water and electricity. Therefore, by setting the turbidity sensor 200 to detect the wastewater generated during the cleaning process, the range hood can understand the degree of cleaning of the interior of the main body 10, making the cleaning more thorough and preventing the waste of resources.

[0066] In one embodiment, such as Figures 1 to 4 As shown, the aforementioned range hood also includes a drain pipe 41 and an oil cup 42. The oil cup 42 is located below the main body 10. The drain pipe 41 is used to guide wastewater generated during the cleaning of the interior of the main body 10 into the oil cup 42. The turbidity sensor 200 is used to detect the turbidity of the wastewater passing through the drain pipe 41. Since the wastewater collects and is discharged from the drain pipe 41 to the oil cup 42, the turbidity sensor 200 can better monitor the overall cleaning of the oil stains, so as to more accurately understand the degree of cleaning.

[0067] In other embodiments, the turbidity sensor 200 may also be disposed inside the oil cup 42. When the turbidity sensor 200 detects that the turbidity inside the oil cup 42 is less than a preset value, the cleaning component 100 is turned off. In the initial stage of cleaning, the turbidity of the wastewater is relatively high. As cleaning proceeds, the oil stains are continuously removed. At this time, the turbidity of the wastewater inside the oil cup 42 will gradually decrease until it is less than the preset value, indicating that the cleaning is relatively thorough and the cleaning process can be ended.

[0068] Alternatively, sewage pipe 41 can directly discharge sewage to the outside of the main body 10.

[0069] In one embodiment, such as Figure 1 and Figure 2 As shown, the main body 10 contains a volute 30, and a drain pipe 41 is connected to the bottom of the volute 30. When the cleaning component 100 cleans the impeller 20, the wastewater will flow down the inner wall of the volute 30. The drain pipe 41, connected to the bottom of the volute 30, can guide more wastewater into the oil cup 42, preventing wastewater from remaining in the volute 30. At the same time, the wastewater flowing through the drain pipe 41 can better demonstrate the overall cleaning effect on the impeller 20.

[0070] Optionally, such as Figures 1 to 4 As shown, the main body 10 includes a vertical plate 12 and an inclined plate 13. The inclined plate 13 is inclined relative to the vertical plate 12, and the distance between the inclined plate 13 and the vertical plate 12 gradually decreases from top to bottom. The volute 30 and the impeller 20 are both located between the inclined plate 13 and the vertical plate 12. The axial direction of the volute 30 matches the normal direction of the inclined plate 13. The inclined plate 13 is provided with an air inlet 13a for the smoke duct 11. At this time, the volute 30 is inclined relative to the direction of gravity, so the sewage generated in the volute 30 can better collect towards the lowest point inside the volute 30. Since the drain pipe 41 is connected to the bottom of the volute 30, the drain pipe 41 can guide more sewage into the oil cup 42 at this time.

[0071] Among them, the "direction from top to bottom" mentioned above refers to the direction of gravity.

[0072] Optionally, such as Figures 1 to 4 As shown, a smoke guide plate 14 is provided at the air inlet 13a. The smoke guide plate 14 is movably arranged relative to the inclined plate 13 to open or close the air inlet 13a. The smoke guide plate 14 can be opened and closed. When smoke extraction is needed, the smoke guide plate 14 moves to open the air inlet 13a, which facilitates the extraction of oil fumes. When oil fumes are not needed, the smoke guide plate 14 closes to prevent external debris from entering the body 10 or to prevent oil stains from overflowing from the body 10. Specifically, when the smoke guide plate 14 closes the air inlet 13a, the cleaning component 100 cleans the interior of the body 10. At this time, liquid splashing is prevented during the cleaning of the interior of the body 10, keeping the area around the body 10 clean.

[0073] Specifically, the axial direction of the volute 30 matches the normal direction of the inclined plate 13, that is, the axial direction of the volute 30 is set perpendicular or approximately perpendicular to the inclined plate 13.

[0074] Specifically, the smoke guide plate 14 can be translated or rotated relative to the tilt plate 13, which can realize the function of opening or closing the air inlet 13a.

[0075] One embodiment discloses a cleaning method for a range hood, comprising the following steps:

[0076] Clean the inside of the main body 10 of the range hood;

[0077] Test the turbidity of the wastewater generated during the cleaning process;

[0078] When the turbidity of the wastewater is detected to be lower than or equal to the preset turbidity value, the cleaning of the interior of the main body 10 of the range hood is stopped.

[0079] The above-described cleaning method for the range hood can clean the interior of the main body 10 and detect the turbidity of the wastewater generated during the cleaning process. When the turbidity of the wastewater is higher than the preset turbidity value, it indicates that there is still a lot of oil stains inside the main body 10, and cleaning can continue to ensure that the oil stains inside the main body 10 are cleaned more thoroughly. When the turbidity of the wastewater is lower than or equal to the preset turbidity value, it indicates that there are fewer oil stains inside the main body 10 or that they have been cleaned. At this time, the cleaning component 100 is turned off to reduce the waste of water and electricity. Therefore, by detecting the turbidity of the wastewater generated during the cleaning process, the above-described cleaning method for the range hood can understand the degree of cleaning of the interior of the main body 10, making the cleaning more thorough and preventing the waste of resources.

[0080] Optionally, the turbidity of the wastewater generated during the above-mentioned cleaning process is specifically assessed by the following steps:

[0081] The turbidity of the wastewater is measured multiple times within a unit of time, and the average turbidity value within a unit of time is calculated. When the average turbidity value is lower than or equal to the preset turbidity value, the cleaning of the interior of the main body 10 of the range hood is stopped.

[0082] During the cleaning of oil stains, the turbidity of the wastewater may fluctuate within a unit of time. If the test happens to be at the lowest point of the turbidity within a unit of time, and the conditions for stopping the cleaning are met, it cannot be guaranteed that the oil stains can be completely cleaned. Therefore, multiple tests are conducted within a unit of time to obtain multiple turbidity values, and then the average turbidity is calculated to more accurately reflect the degree of oil stain cleaning and ensure the cleaning effect.

[0083] In one embodiment, the following steps are included before cleaning the interior of the range hood body 10:

[0084] The water level in the water tank 130 is detected. When the water level in the water tank 130 is detected to be higher than the preset water level value, the water in the water tank 130 is heated.

[0085] The water temperature in the water tank 130 is detected. When the water temperature in the water tank 130 is higher than the preset water temperature value, the water tank 130 is controlled to output water for cleaning the interior of the main body 10.

[0086] First, the water level in the water tank 130 is checked. If the water level is too low, water cannot be continuously output for cleaning. Therefore, after ensuring that the water level in the water tank 130 is higher than the preset water level value, the water in the water tank 130 is heated. When the water temperature is too low, the effect on cleaning the oil stains inside the main body 10 is not obvious. Therefore, when the water temperature in the water tank 130 is detected to be higher than the preset water temperature value, that is, when the water temperature reaches a certain temperature, hot water is output for cleaning the inside of the main body 10, which can effectively improve the cleaning effect on oil stains and improve cleaning efficiency.

[0087] In one embodiment, the step of cleaning the interior 10 of the range hood body includes:

[0088] The impeller 20 inside the main body 10 of the range hood is driven to rotate, and the impeller 20 is cleaned.

[0089] When the impeller 20 inside the cleaning body 10 is rotated, different parts of the impeller 20 can be cleaned, improving the cleaning effect of the impeller 20. In addition, the rotation of the impeller 20 has centrifugal force, which can throw out the sewage and prevent sewage from remaining on the impeller 20.

[0090] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

[0092] In the description of this invention, it should 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," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0093] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0094] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0095] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0096] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

Claims

1. A cleaning structure, characterized in that, include: A cleaning component for cleaning the interior of the main body of the range hood; and A turbidity sensor, used to detect the turbidity of wastewater generated during the cleaning of the interior of the main body; The cleaning component is configured to be in a closed state when the turbidity sensor detects that the turbidity of the wastewater is lower than or equal to a preset turbidity value; The cleaning component is used to clean the impeller inside the main body; The cleaning assembly includes a nozzle disposed inside the impeller, the nozzle being arranged circumferentially along the impeller, the nozzle having a plurality of nozzle outlets disposed on the inner side of the nozzle, the nozzle outlets being spaced apart circumferentially along the impeller, and the nozzle outlets being oriented towards the impeller. The cleaning assembly also includes a water pump, a water supply pipe, and an atomizing nozzle. The water supply pipe is connected to the spray pipe through the atomizing nozzle. The water pump is used to deliver water from the water supply pipe to the atomizing nozzle to form a water mist, which then enters the spray pipe.

2. The cleaning structure according to claim 1, characterized in that, The water pump is configured to shut off when the turbidity sensor detects that the turbidity of the wastewater is lower than or equal to a preset turbidity value.

3. The cleaning structure according to claim 2, characterized in that, The cleaning assembly also includes a heating element and a water tank, with the end of the water supply pipe furthest from the spray nozzle connected to the water tank. The heating element is used to heat the water in the water tank; Alternatively, the heating element may be used to heat the water in the water supply pipe.

4. The cleaning structure according to claim 3, characterized in that, The water tank is equipped with a temperature sensor, the heating element is used to heat the water in the water tank, and / or the water tank is equipped with a liquid level sensor.

5. A range hood, characterized in that, The device includes a main body and a cleaning structure as described in any one of claims 1-4, wherein the main body is provided with a smoke extraction duct, and the cleaning component is used to clean the interior of the main body.

6. The range hood according to claim 5, characterized in that, It also includes a drain pipe and an oil cup. The oil cup is located below the main body. The drain pipe is used to guide the wastewater generated during the cleaning of the interior of the main body into the oil cup. The turbidity sensor is used to detect the turbidity of the wastewater passing through the drain pipe.

7. The range hood according to claim 6, characterized in that, The main body is equipped with a volute, and the sewage pipe is connected to the bottom of the volute.

8. A cleaning method for a range hood according to any one of claims 1-7, characterized in that, Includes the following steps: Clean the inside of the main body of the range hood; Test the turbidity of the wastewater generated during the cleaning process; When the turbidity of the wastewater is detected to be lower than or equal to the preset turbidity value, the cleaning of the interior of the range hood body will be stopped.

9. The cleaning method for a range hood according to claim 8, characterized in that, Before cleaning the interior of the range hood, the following steps are also included: The water level in the water tank is detected, and when the water level in the water tank is detected to be higher than the preset water level value, the water in the water tank is heated. The water temperature in the water tank is detected. When the water temperature in the water tank is detected to be higher than the preset water temperature value, the water tank is controlled to output water for cleaning the interior of the main body.

10. The cleaning method for a range hood according to claim 8, characterized in that, The steps for cleaning the interior of the range hood include: The impeller inside the main body of the range hood is driven to rotate, and the impeller is cleaned.

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