Range hood and control method thereof

Abstract

The invention discloses a range hood and a control method thereof, relates to the technical field of kitchen electrical equipment, and aims to solve the problem that a control panel of the range hood is inconvenient to clean. The embodiment of the invention provides a range hood. The range hood comprises a shell, a fan, a control panel and a cleaning assembly. A mounting cavity is formed in the shell, and an air inlet and an air outlet which communicate with the mounting cavity are formed in the shell. The fan is arranged in the mounting cavity and used for driving airflow to enter the mounting cavity through the air inlet and be exhausted through the air outlet. The control panel is arranged at the end, close to the air inlet, of the shell and located on the peripheral side of the shell. The control panel is used for controlling the extractor hood to work. The cleaning assembly is arranged on the side, away from the mounting cavity, of the control panel and covers the control panel. The cleaning assembly comprises a plurality of cleaning films, and the multiple cleaning films are arranged in a stacked mode in the first direction and can be peeled off layer by layer. The first direction is perpendicular to the surface, close to the cleaning assembly, of the control panel. The kitchen air purifier can be used for purifying kitchen air.

Description

Technical Field

[0001] The present invention relates to the field of kitchen electrical appliances, and in particular to a range hood and a control method thereof. Background Art

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It is usually installed above the kitchen stove. It can quickly extract the exhaust gas generated by the kitchen stove and the fumes that are harmful to the human body generated during the cooking process, and discharge them outdoors, thereby reducing kitchen pollution and purifying the kitchen air.

[0003] In the related art, a range hood includes a housing, a fan, and a control panel. The housing is formed with a mounting cavity and is provided with an air inlet and an air outlet connected to the mounting cavity. The fan is disposed within the mounting cavity and is used to drive air into the mounting cavity through the air inlet and out through the air outlet, thereby purifying the kitchen air. The control panel is generally disposed on the side of the housing and is used to control the operation of the range hood. After the range hood has been operating for a period of time, oil and dirt tend to accumulate on the control panel, resulting in insensitive control of the control panel, necessitating regular cleaning of the control panel.

[0004] However, the control panel of the above range hood is not easy to clean and is easily damaged. Summary of the Invention

[0005] The present application provides a range hood and a control method thereof, which are used to solve the problem that the control panel of the range hood is difficult to clean.

[0006] To achieve the above objectives, this application adopts the following technical solutions:

[0007] In a first aspect, an embodiment of the present application provides a range hood comprising a housing, a fan, a control panel, and a cleaning assembly. The housing is formed with a mounting cavity, and is provided with an air inlet and an air outlet communicating with the mounting cavity. The fan is disposed within the mounting cavity, and is used to drive airflow into the mounting cavity through the air inlet and out through the air outlet. The control panel is disposed at one end of the housing near the air inlet and is located on the peripheral side of the housing, and the control panel is used to control the operation of the range hood. The cleaning assembly is disposed on a side of the control panel away from the mounting cavity and covers the control panel.

[0008] The cleaning assembly includes a plurality of cleaning films, which are stacked along a first direction and can be peeled off layer by layer. The first direction is perpendicular to a surface of the control panel close to the cleaning assembly.

[0009] It is understandable that the control panel controls the operation of the range hood, extracting the fumes generated during cooking on the kitchen stove and discharging them outdoors, thereby purifying the kitchen air. The cleaning component is arranged on the side of the control panel away from the installation cavity and covers the control panel to protect the control panel. In this way, as the range hood is used, oil stains gradually accumulate on the cleaning component. Since the cleaning component includes multiple layers of cleaning films, and the multiple layers of cleaning films can be peeled off layer by layer, after a large amount of oil stains have accumulated, only one layer of cleaning film needs to be peeled off to clean the control panel. The range hood provided in the embodiment of the present application can clean the control panel conveniently and quickly, and has a good cleaning effect without damaging the control panel.

[0010] In some embodiments, each cleaning membrane includes a main body portion and a lug portion. The main body portion covers the control panel, and the lug portion is connected to the main body and is located around the main body portion. The two main bodies of each pair of adjacent cleaning membranes are connected to each other, and the two lug portions of each pair of adjacent cleaning membranes are separated from each other.

[0011] In some embodiments, the ear hooks are provided with connection holes. The range hood further comprises a connection post connected to the housing. The connection post is passed through the connection hole of each ear hook to secure each ear hook to the housing.

[0012] In some embodiments, the thickness of each cleaning film is less than or equal to 0.075 mm, and / or the sum of the thicknesses of the cleaning films of each cleaning assembly is less than or equal to 1.5 mm.

[0013] In some embodiments, the range hood further includes a smoke collecting plate disposed at the air inlet. The smoke collecting plate is connected to the housing and located around the housing. The smoke collecting plate is movable relative to the housing to open or close the air inlet. When the smoke collecting plate closes the air inlet, the smoke collecting plate is located on the side of the control panel near the air inlet. Each cleaning membrane includes a first sub-membrane and a second sub-membrane, each of which is separated from each other. The first sub-membrane covers the control panel, and the second sub-membrane covers the smoke collecting plate.

[0014] In some embodiments, the range hood further comprises a fixing plate disposed at an end of the housing near the air inlet and located between the fixing plate and the control panel. The fixing plate is located on a peripheral side of the housing. Each cleaning membrane further comprises a third sub-membrane, which is separated from the first sub-membrane and the second sub-membrane and covers the fixing plate.

[0015] In some embodiments, the range hood further includes a light sensor, a light shielding film, and a reminder device. The light sensor is arranged on the side of the cleaning component close to the control panel. The light sensor is used to emit outgoing light and to receive reflected light. The light shielding film is arranged between two adjacent cleaning films. The light shielding film is used to receive the outgoing light and reflect the reflected light. The reminder device is used to issue a reminder message. The light sensor and the reminder device are connected to the control panel, and the control panel is configured to: control the light sensor to emit outgoing light; if the light sensor does not receive the reflected light, control the reminder device to issue a first reminder message to remind the user to replace the cleaning component.

[0016] In some embodiments, the range hood further includes a temperature detection device and a reminder device. The temperature detection device is used to detect the cooling rate of the control panel and the indoor temperature. The reminder device is used to issue a reminder message. The temperature detection device and the reminder device are connected to the control panel, which is configured to: obtain the indoor temperature; determine a current cooling rate threshold based on the indoor temperature; obtain the cooling rate of the control panel; and if the cooling rate of the control panel is less than the current cooling rate threshold, control the reminder device to issue a second reminder message to remind the user to remove a layer of the cleaning film.

[0017] In a second aspect, an embodiment of the present application provides a control method for a range hood, comprising: controlling a light sensor to emit outgoing light; if the light sensor does not receive reflected light, controlling a reminder device to issue a first reminder message to remind a user to replace a cleaning component.

[0018] In a third aspect, an embodiment of the present application provides a method for controlling a range hood, comprising: obtaining the indoor temperature; determining the current first cooling rate threshold V1 based on the indoor temperature; obtaining the cooling rate V0 of the control panel; if the cooling rate V0 of the control panel is less than the current first cooling rate threshold V1, the control reminder device is controlled to issue a second reminder message to remind the user to peel off a layer of cleaning film.

[0019] The beneficial effects described in the second and third aspects above can be analyzed with reference to the beneficial effects of the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is one of the structural schematic diagrams of a range hood provided in an embodiment of the present application;

[0021] Figure 2 This is a second structural diagram of a range hood provided in an embodiment of the present application;

[0022] Figure 3 This is a third structural diagram of a range hood provided in an embodiment of the present application;

[0023] Figure 4This is a fourth structural diagram of a range hood provided in an embodiment of the present application;

[0024] Figure 5 for Figure 4 A partial enlarged view of point A in the middle;

[0025] Figure 6 This is one of the structural schematic diagrams of a cleaning membrane provided in an embodiment of the present application;

[0026] Figure 7 This is a fifth structural diagram of a range hood provided in an embodiment of the present application;

[0027] Figure 8 for Figure 7 A partial enlarged view of point B in the middle;

[0028] Figure 9 This is a second structural diagram of a cleaning membrane provided in an embodiment of the present application;

[0029] Figure 10 This is a sixth structural diagram of a range hood provided in an embodiment of the present application;

[0030] Figure 11 The third structural diagram of a cleaning membrane provided in an embodiment of the present application;

[0031] Figure 12 A schematic structural diagram of a light sensor provided in an embodiment of the present application;

[0032] Figure 13 A schematic diagram of the structures of the optical sensor, reminder device, and temperature detection device provided in an embodiment of the present application;

[0033] Figure 14 This is one of the flow charts of the working process of a range hood provided in an embodiment of the present application;

[0034] Figure 15 The second flowchart of the working process of a range hood provided in an embodiment of the present application;

[0035] Figure 16 The third flowchart of the working process of a range hood provided in an embodiment of the present application;

[0036] Figure 17 A fourth flow chart of the working process of a range hood provided in an embodiment of the present application;

[0037] Figure 18 This is a fifth flow chart of the working process of a range hood provided in an embodiment of the present application.

[0038] Reference numerals:

[0039] 1000, range hood; 10, housing; 101, mounting cavity; 102, air inlet; 103, air outlet; 104, first wall panel; 105, second wall panel; 106, side wall panel; 20, fan; 30, smoke exhaust duct; 40, oil cup; 50, control panel; 501, cover; 502, switch panel; 60, smoke collecting panel; 601, drive unit; 70, fixing plate;

[0040] 80. Cleaning assembly; 801. Cleaning membrane; 8011. First sub-membrane; 8012. Second sub-membrane; 8013. Third sub-membrane; 802. Main body; 8021. First main body; 8022. Second main body; 8023. Third main body; 803. Ear hook; 8031. First ear hook; 8032. Second ear hook; 8033. Third ear hook; 804. Connecting hole; 8041. First connecting hole; 8042. Second connecting hole; 8043. Third connecting hole;

[0041] 90, connecting column; 901, first connecting column; 902, second connecting column; 903, third connecting column;

[0042] 100, light sensor; 1001, fixing base; 1002, light-emitting component; 1003, receiving component; 1004, light-isolating component; 110, light-shielding film; 120, reminder device; 1201, lamp holder; 1202, LED light-emitting tube; 130, temperature detection device;

[0043] F1, first direction;

[0044] V0, cooling rate; V1, current first cooling rate threshold; V2, current second cooling rate threshold. DETAILED DESCRIPTION

[0045] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0046] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0047] 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 quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, when describing pipelines or channels, the "connected" and "connected" used in this application have the meaning of conduction. The specific meaning needs to be understood in conjunction with the context.

[0049] It should be noted that, in actual applications, due to the limitations of equipment precision or installation errors, absolute parallel or perpendicular effects are difficult to achieve. The description of "perpendicular", "parallel" or "same direction" in this application is not an absolute limiting condition, but rather indicates that a vertical or parallel structural setting can be achieved within a preset error range and the corresponding preset effect can be achieved. In this way, the technical effect of the defined feature can be maximized, and the corresponding technical solution is easy to implement, with high feasibility. For example, "perpendicular" includes absolute vertical and approximate vertical, wherein the acceptable deviation range of approximate vertical can also be, for example, a deviation within 5°. "Parallel" includes absolute parallel and approximate parallel, wherein the acceptable deviation range of approximate parallel can also be, for example, a deviation within 5°. "Same direction" includes absolute same direction and approximate same direction, wherein the acceptable deviation range of approximate same direction can also be, for example, a deviation within 5°.

[0050] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0051] The range hood is a common kitchen appliance. It uses a fan to discharge harmful gases such as oil smoke, smoke, steam, etc. generated in the kitchen to the outside, keeping the kitchen air fresh, preventing oil smoke from depositing on the kitchen walls and furniture, and reducing the harm of oil smoke to the human body and the environment.

[0052] like Figure 1 and Figure 2 As shown, the range hood 1000 provided in the present application includes a housing 10 and a fan 20 . The housing 10 is formed with a mounting cavity 101 , and the housing 10 is provided with an air inlet 102 and an air outlet 103 that are in communication with the mounting cavity 101 .

[0053] The range hood 1000 may further include a smoke exhaust passage 30 , which is disposed at the air outlet 103 and communicates with the air outlet 103 , and can exhaust the oil smoke in the housing 10 to the outside of the room.

[0054] It should be noted that the type of the range hood 1000 can be a top-suction range hood or a side-suction range hood. The specific selection can be made according to actual conditions, and this application does not make any specific restrictions on this.

[0055] For example, the present application is described using a side-suction range hood as an example.

[0056] Range hood 1000 is suitable for wall mounting and includes an oil cup 40 extending parallel to the wall surface. Located on the side of housing 10 away from exhaust passage 30, oil cup 40 communicates with mounting cavity 101 and is used to collect condensed oil droplets within mounting cavity 101.

[0057] The housing 10 includes a first wall panel 104 and a second wall panel 105 disposed opposite each other. The first wall panel 104 is parallel to the wall and is configured to be connected to the wall. The distance between the second wall panel 105 and the first wall panel 104 gradually decreases as it approaches the oil cup 40. For example, the end of the second wall panel 105 closest to the oil cup 40 is inclined relative to the first wall panel 104 toward the first wall panel 104.

[0058] The housing 10 may further include a side wall plate 106, which is located between the first wall plate 104 and the second wall plate 105 and connected to the first wall plate 104 and the second wall plate 105. The first wall plate 104, the second wall plate 105 and the side wall plate 106 form an installation cavity 101.

[0059] On this basis, the air inlet 102 can be provided on the second wall panel, and the air outlet 103 can be provided on the side wall panel 106 .

[0060] The range hood 1000 may further include a control panel 50 , which is disposed at one end of the housing 10 close to the air inlet 102 and located on the peripheral side of the housing 10 . The control panel 50 is used to control the operation of the range hood 1000 .

[0061] Exemplarily, the control panel 50 is disposed on a side of the second wall panel 105 away from the installation cavity 101 .

[0062] The fan 20 is disposed in the installation cavity 101 and is used to drive airflow into the installation cavity 101 through the air inlet 102 and be discharged through the air outlet 103 and then discharged through the smoke exhaust channel 30 to reduce indoor air pollution.

[0063] When the fan 20 rotates, it can exhaust the air in the housing 10 through the oil fume duct to the outside, thereby creating a negative pressure area in the housing 10. At this time, the oil fume is attracted by the negative pressure area and enters the housing 10. Then, the oil and gas are separated in the housing 10, and the grease particles are agglomerated into oil droplets, which are then collected in the oil cup 40 through the oil passage. The purified fume is then discharged to the outside through the exhaust duct 30.

[0064] It should be noted that the type of the fan 20 can be a centrifugal fan, an axial flow fan or a mixed flow fan, which can be selected according to actual conditions and is not specifically limited in this application.

[0065] like Figure 2 and Figure 3 As shown, the control panel 50 may include a cover plate 501 and a switch plate 502. The cover plate 501 is disposed on a side of the switch plate 502 away from the mounting cavity 101 and serves to protect the switch plate 502. The switch plate 502 is the primary control center for users to operate the range hood 1000. Through the switch plate 502, various functions of the range hood 1000 can be conveniently controlled, improving the convenience and comfort of kitchen use.

[0066] It should be noted that the cover plate 501 can be a glass cover plate or a plastic cover plate, which can be selected according to actual conditions and is not specifically limited in this application.

[0067] During operation of the range hood 1000, a large amount of oil smoke is generated during cooking on the kitchen stove. Prolonged exposure to this oil smoke can cause oil stains to gradually accumulate on the surface of the control panel 50 of the range hood 1000. This can cause insensitive control when the user uses the control panel 50 to control the range hood 1000, affecting the user experience and also detracting from the aesthetics of the range hood 1000.

[0068] In the related art, a cleaning agent with strong degreasing ability is developed to facilitate cleaning the control panel 50 of the range hood 1000 , but the cleaning effect of the cleaning agent is limited and may also cause damage to the control panel 50 .

[0069] Based on this, Figure 2 and Figure 4As shown, the range hood 1000 in the embodiment of the present application further includes a cleaning assembly 80. The cleaning assembly 80 is disposed on a side of the control panel 50 away from the mounting cavity 101 and covers the control panel 50. In this way, the cleaning assembly 80 can protect the control panel 50 and prevent damage to the control panel 50.

[0070] Among them, such as Figure 5 As shown, the cleaning assembly 80 may include a plurality of cleaning films 801 , which are stacked along a first direction F1 and can be peeled off layer by layer. The first direction F1 is perpendicular to the surface of the control panel 50 close to the cleaning assembly 80 .

[0071] As the range hood 1000 is used, oil and dirt gradually accumulate on the cleaning assembly 80. Since the cleaning assembly 80 includes multiple cleaning films 801, and the multiple cleaning films 801 can be peeled off layer by layer, when a large amount of oil and dirt has accumulated, only one layer of the cleaning film 801 needs to be peeled off to clean the control panel 50. The range hood 1000 provided in this embodiment of the application can clean the control panel 50 conveniently and quickly, with good cleaning effect, and without damaging the control panel 50.

[0072] It should be noted that the cleaning component 80 can be transparent or patterned to provide a better appearance experience.

[0073] The pattern design of the cleaning component 80 can be the same for each layer or different for each layer.

[0074] It should be noted that the cleaning assembly 80 includes a first surface and a second surface that face each other, wherein the first surface is connected to the control panel. The cleaning assembly 80 also includes a side surface located between the first and second surfaces and connected to both the first and second surfaces. As the range hood is used, grease accumulates on the second surface and the side surface of the cleaning assembly 80. Reducing the thickness of the cleaning assembly 80 can reduce the area of ​​the side surface, thereby reducing the accumulation of grease on the side surface of the cleaning assembly 80.

[0075] Based on this, in some embodiments of the present application, the sum of the thicknesses of the multiple cleaning films 801 is less than or equal to 1.5 mm. In this way, directly limiting the thickness of the stacked layers of cleaning films 801 can reduce the thickness difference between the cleaning assembly 80 and the surface of the control panel 50, thereby reducing the accumulation of oil stains.

[0076] For example, the sum of the thicknesses of the cleaning films 801 may be 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, etc.

[0077] It is understandable that, when the thickness of the cleaning component 80 is constant, the greater the thickness of each cleaning film 801, the fewer layers of cleaning films 801 in the cleaning component 80, the shorter the service life of the cleaning component 80, and the user needs to replace the cleaning component 80 frequently.

[0078] Based on this, in some embodiments of the present application, the thickness of each cleaning film 801 is less than or equal to 0.075 mm. In this way, the number of layers of the cleaning films 801 can be increased, making the cleaning assembly 80 more durable.

[0079] For example, the thickness of each cleaning film 801 may be 0.025 mm, 0.050 mm, 0.075 mm, etc.

[0080] It should be noted that the multiple cleaning films 801 can be stacked by gluing, or by electrostatic adsorption, or by surface tension.

[0081] For example, the present application uses an example in which a plurality of cleaning films 801 can be stacked by gluing.

[0082] In this way, in order to facilitate the peeling of the cleaning film 801 layer by layer, the cleaning film 801 can be configured in some ways. For example, one corner of the cleaning film 801 can be set to be glue-free to facilitate peeling of the cleaning film 801. For another example, the ear can be glue-free to facilitate peeling of the cleaning film 801.

[0083] Exemplarily, the cleaning film 801 is configured to include ears. Figure 6 As shown, each cleaning membrane 801 includes a main body portion 802 and an ear-hanging portion 803 .

[0084] It is understandable that the main body 802 covers the cover 501 of the control panel 50 and can protect the cover 501 of the control panel 50. The ear portion 803 is connected to the main body 802 and is located on the peripheral side of the main body 802.

[0085] The two main bodies 802 of each pair of adjacent cleaning membranes 801 are connected to each other, while the two ear hooks 803 of each pair of adjacent cleaning membranes 801 are separated from each other. This allows the main bodies 802 of multiple cleaning membranes 801 to be stacked by adhesive bonding, while the ear hooks 803 of multiple cleaning membranes 801 are adhesive-free and separated from each other, making it easier to separate the ear hooks 803.

[0086] It can be understood that when the oil and dirt on the surface of the outer cleaning film 801 are seriously accumulated, the ear-hanging portion 803 of the outer cleaning film 801 is first separated from the ear-hanging portion 803 of the remaining cleaning films 801, and then the entire outer cleaning film 801 is torn off through the ear-hanging portion 803 to clean the control panel 50.

[0087] In some embodiments, as Figure 6 As shown, the ear hanging portion 803 is provided with a connection hole 804 .

[0088] like Figure 4 As shown, the range hood 1000 further includes a connecting post 90 , which is connected to the housing 10 .

[0089] It is understandable that the connecting post 90 can be passed through the connecting hole 804 of each hanging ear portion 803. In this way, each hanging ear portion 803 can be fixed to the housing 10.

[0090] It is understood that accommodating the ear hooks 803 and securing them to the housing 10 via the connecting posts 90 can reduce dust accumulation between adjacent ear hooks 803. Furthermore, this can reduce the risk of accidental contact with an ear hook 803, which could create a gap between the portion of the main body 802 near the ear hook 803 and potentially affect the stickiness of the main body 802.

[0091] In some embodiments, as Figure 2 and Figure 7 As shown, the range hood 1000 further includes a smoke collecting plate 60, which is disposed at the air inlet 102. The smoke collecting plate 60 is connected to the housing 10 and is located around the housing 10. The smoke collecting plate 60 is disposed on the side of the second wall panel 105 away from the mounting cavity 101. The smoke collecting plate 60 is movable relative to the housing 10 to open or close the air inlet 102. When the smoke collecting plate 60 closes the air inlet 102, it is located on the side of the control panel 50 closest to the air inlet 102.

[0092] It is understandable that there are many possible ways to connect the smoke collecting plate 60 to the housing 10, which can be selected according to actual conditions, and this application does not make any specific restrictions on this.

[0093] Illustratively, the range hood 1000 further includes a rotating shaft, and the smoke collecting plate 60 can be hinged to the housing 10 via the rotating shaft, wherein the smoke collecting plate 60 can rotate around the rotating shaft.

[0094] like Figure 8 As shown, the range hood 1000 further includes a driving device 601, which is connected to the smoke collecting plate 60. The range hood 1000 drives the smoke collecting plate 60 to rotate via the driving device 601 to open or close the air inlet 102.

[0095] Exemplarily, the driving device 601 may be an electric push rod or a hydraulic push rod, and the specific selection may be made according to actual conditions, and this application does not make any specific limitations on this.

[0096] The cleaning film 801 can cover the control panel 50 and the smoke collecting plate 60 to protect the control panel 50 and the smoke collecting plate 60. It is understandable that the cleaning film 801 can be an integrated design, covering the control panel 50 and the smoke collecting plate 60 as a whole, or a split design, covering the control panel 50 and the smoke collecting plate 60 separately.

[0097] For example, Figure 9 As shown, the cleaning film 801 is a split design. For example, each cleaning film 801 includes a first sub-membrane 8011 and a second sub-membrane 8012 that are separated from each other.

[0098] The first sub-membrane 8011 covers the control panel 50, and the second sub-membrane 8012 covers the cigarette collecting plate 60. In this way, the first sub-membrane 8011 and the second sub-membrane 8012 are separated from each other, and when the cigarette collecting plate 60 rotates, the first sub-membrane 8011 and the second sub-membrane 8012 will not affect each other.

[0099] It is understood that the first sub-membrane 8011 may include a first main body 8021 and a first ear portion 8031. The first main body 8021 covers and protects the control panel 50. The first ear portion 8031 ​​is connected to the first main body 8021 and has a first connection hole 8041, located around the first main body 8021. The second sub-membrane 8012 may include a second main body 8022 and a second ear portion 8032. The second main body 8022 covers and protects the smoke collecting plate 60. The second ear portion 8032 is connected to the second main body and has a second connection hole 8042, located around the second main body 8022.

[0100] like Figure 10 As shown, the range hood 1000 may further include a first connecting post 901 and a second connecting post 902 .

[0101] The first connecting post 901 can be connected to the housing 10 and is located on the side wall 106 of the housing 10. The first connecting post 901 is inserted into the first connecting hole 8041 of the first hanging ear 8031 ​​to fix the first hanging ear 8031 ​​of the first sub-membrane 8011.

[0102] When the smoke collecting plate 60 closes the air inlet, the second connecting column 902 can be located on the side of the smoke collecting plate 60 close to the installation cavity 101. The second connecting column 902 is passed through the second connecting hole 8042 of the second hanging ear 8032, and can fix the second hanging ear 8032 of the second sub-membrane 8012.

[0103] It can be understood that when the oil and dirt on the surface of the outer first sub-membrane 8011 is seriously accumulated, the first ear portion 8031 ​​of the outer first sub-membrane 8011 is first separated from the first ear portions 8031 ​​of other first sub-membranes 8011 on the first connecting column 901, and then the entire outer first sub-membrane 8011 is torn off through the first ear portion 8031 ​​to clean the control panel 50.

[0104] When the surface of the outer second sub-membrane 8012 is seriously oily, the smoke collecting plate 60 rotates relative to the shell 10 to open the air inlet 102, and the second ear portion 8032 of the outer second sub-membrane 8012 is separated from the second ear portion 8032 of other second sub-membranes 8012 from the second connecting column 902, and then the entire outer second sub-membrane 8012 is torn off through the second ear portion 8032 to clean the smoke collecting plate 60.

[0105] It should be noted that a matching hole is further provided on the housing 10 . When the smoke collecting plate 60 closes the air inlet 102 , the second connecting column 902 is located in the matching hole.

[0106] Arranged in this manner, the closing of the smoke collecting plate 60 may not be affected, and the smoke collecting plate 60 may completely close the air inlet 102 .

[0107] In some embodiments, as Figure 7 As shown, the range hood 1000 further includes a fixing plate 70 , which is disposed at one end of the housing 10 close to the air inlet 102 and is located between the fixing plate 70 and the control panel 50 .

[0108] The fixing plate 70 is disposed on a side of the second wall plate 105 away from the installation cavity 101 .

[0109] The cleaning film 801 can cover the control panel 50 , the smoke collecting plate 60 and the fixing plate 70 to protect the control panel 50 , the smoke collecting plate 60 and the fixing plate 70 .

[0110] like Figure 11 As shown, each cleaning film 801 may further include a third sub-film 8013 , and the third sub-film 8013 is separated from the first sub-film 8011 and the second sub-film 8012 .

[0111] It is understood that the third sub-membrane 8013 can cover the fixed plate 70. The third sub-membrane 8013 includes a third main portion 8023 and a third lug portion 8033. The third main portion 8023 covers the fixed plate 70 and can protect the fixed plate 70. The third lug portion 8033 is connected to the third main portion 8023 and has a third connection hole 8043 located on the side of the third main portion 8023.

[0112] like Figure 10As shown, the range hood 1000 may further include a third connecting post 903. The third connecting post 903 may be connected to the housing 10 and located on the side wall 106 of the housing 10. The third connecting post 903 is inserted into the third connecting hole 8043 of the third hook portion 8033 to secure the third hook portion 8033 of the third sub-membrane 8013.

[0113] It can be understood that when the oil accumulation on the surface of the outer third sub-membrane 8013 is relatively serious, the third ear portion 8033 of the outer third sub-membrane 8013 is first separated from the third ear portion 8033 of other third sub-membranes 8013 from the third connecting column 903, and then the entire outer third sub-membrane 8013 is torn off through the third ear portion 8033 to clean the fixed plate 70.

[0114] In some embodiments, the range hood 1000 may further include a light sensor 100. The light sensor 100 is disposed on a side of the cleaning assembly 80 close to the control panel 50. The light sensor 100 is configured to emit outgoing light and receive reflected light.

[0115] It should be noted that the optical sensor 100 may be an infrared sensor, or a laser sensor 100, etc. The selection may be made according to actual conditions, and this application does not impose any specific limitation thereto.

[0116] For example, this application is described using an infrared sensor as an example.

[0117] like Figure 12 As shown, the optical sensor 100 includes a fixing base 1001, a light emitting component 1002, and a receiving component 1003. The fixing base 1001 can be connected to a control panel or a housing.

[0118] The light emitting component 1002 and the receiving component 1003 are arranged on the fixing base 1001. The light emitting component 1002 can be used to emit outgoing light, and the receiving component 1003 can be used to receive reflected light.

[0119] The optical sensor 100 further includes a light isolation component 1004, which is disposed on the fixing base 1001. The light isolation component 1004 can isolate the light emitting component 1002 and the receiving component 1003, thereby preventing the light emitted by the light emitting component 1002 from directly entering the receiving component 1003.

[0120] The range hood 1000 may further include a light shielding film 110 disposed between two adjacent cleaning films 801. The light shielding film 110 is configured to receive the outgoing light emitted by the light sensor 100 and reflect the reflected light so that the reflected light is received by the light sensor 100.

[0121] like Figure 6As shown, the light shielding film 110 can be connected to any one of the cleaning films 801 .

[0122] It should be noted that a pattern or a light-shielding block may be provided on the cleaning film 801 by printing or other methods to replace the light-shielding film 110 .

[0123] The range hood 1000 may further include a reminder device 120 for issuing a reminder message. It should be noted that the reminder device 120 may be a light reminder device, a sound reminder device, or a combination of light and sound reminder devices. The specific selection may be based on actual circumstances and is not specifically limited in this application.

[0124] For example, Figure 13 As shown, the present application takes the reminder device 120 as a light reminder device as an example for description. The reminder device 120 may include a lamp holder 1201 and an LED lamp tube 1202 , wherein the LED lamp tube 1202 is disposed on the lamp holder 1201 .

[0125] The light sensor 100 and the reminder device 120 are connected to the control panel 50. It is understandable that the light sensor 100 and the reminder device 120 can be electrically connected to the control panel 50 or can be communicatively connected.

[0126] The control panel 50 can control the light sensor 100 to emit outgoing light, and when the light sensor 100 does not receive reflected light, control the reminder device 120 to issue a first reminder message to remind the user to replace the cleaning component 80. The first reminder message can be a flashing red light.

[0127] It is understandable that when the optical sensor 100 does not receive the reflected light, the light shielding film 110 has been torn off and the cleaning component 80 has reached the specified replacement position. At this time, the user needs to replace the cleaning component 80.

[0128] In addition, the control panel 50 can also control the reminder device 120 to issue a third reminder message when the light sensor 100 receives the reflected light. The third reminder message can be a long blue light.

[0129] In some embodiments, as Figure 13 As shown, the range hood 1000 may further include a temperature detection device 130 for detecting the cooling rate of the control panel 50 and the indoor temperature.

[0130] It should be noted that the temperature detection device 130 can be a temperature sensor, an infrared thermal imager, a thermocouple, a thermistor, etc.

[0131] For example, the present application takes the temperature detection device 130 as a temperature sensor as an example for description.

[0132] There may be multiple temperature sensors, and the multiple temperature sensors include a first temperature sensor and a second temperature sensor. For example, the first temperature sensor is used to detect the cooling rate of the control panel 50, and the second temperature sensor is used to detect the indoor temperature.

[0133] The temperature detection device 130 is connected to the control panel 50. It is understandable that the light sensor 100 and the reminder device 120 can be electrically connected to the control panel 50 or can be communicatively connected.

[0134] The control panel 50 can control the temperature detection device 130 to obtain the indoor temperature and, according to Table 1, determine the current first cooling rate threshold V1 based on the indoor temperature. The control panel 50's cooling rate V0 is obtained. If the cooling rate V0 of the control panel 50 is less than the current first cooling rate threshold V1, the reminder device 120 is controlled to issue a second reminder message to remind the user to remove a layer of cleaning film 801. The second reminder message can be a steady red light.

[0135] It is understandable that when the control panel 50 detects that the cooling rate V0 is less than the current first cooling rate threshold V1, oil stains have accumulated significantly on the control panel 50, reaching the condition for peeling off a layer of the cleaning film 801.

[0136] Table 1

[0137] Room temperature range Red light is always on Yellow light always bright Green light is always on 0℃-10℃ <![CDATA[V0<V1]]> <![CDATA[V1≤V0≤V2]]> <![CDATA[V0>V2]]> 10℃-20℃ <![CDATA[V0<V1]]> <![CDATA[V1≤V0≤V2]]> <![CDATA[V0>V2]]> 20℃-30℃ <![CDATA[V0<V1]]> <![CDATA[V1≤V0≤V2]]> <![CDATA[V0>V2]]> 30℃-40℃ <![CDATA[V0<V1]]> <![CDATA[V1≤V0≤V2]]> <![CDATA[V0>V2]]>

[0138] In addition, according to Table 1, the control panel 50 can also determine the current second cooling rate threshold V2 based on the indoor temperature. If the cooling rate V0 of the control panel is greater than or equal to the current first cooling rate threshold V1 and less than or equal to the current second cooling rate threshold V2, the control panel controls the reminder device to issue a fourth reminder message. The fourth reminder message can be a solid yellow light.

[0139] If the cooling rate V0 of the control panel is greater than the current second cooling rate threshold V2, the control reminder device is controlled to issue a fifth reminder message. The fourth reminder message can be a green light that is always on.

[0140] It is understandable that the values ​​of V1 and V2 corresponding to different temperature ranges in Table 1 are different. The higher the temperature, the smaller the corresponding V1 value and the smaller the V2 value.

[0141] For example, V1 corresponding to the temperature range of 0°C-10°C is greater than V1 corresponding to the temperature range of 10°C-20°C, and V2 corresponding to the temperature range of 0°C-10°C is greater than V2 corresponding to the temperature range of 10°C-20°C.

[0142] For another example, V1 corresponding to the temperature range of 10°C-20°C is greater than V1 corresponding to the temperature range of 20°C-30°C, and V2 corresponding to the temperature range of 10°C-20°C is greater than V2 corresponding to the temperature range of 20°C-30°C.

[0143] For another example, V1 corresponding to the temperature range of 20°C-30°C is greater than V1 corresponding to the temperature range of 30°C-40°C, and V2 corresponding to the temperature range of 20°C-30°C is greater than V2 corresponding to the temperature range of 30°C-40°C.

[0144] It should be noted that the number of reminder devices 120 can be one or more. When the number of reminder devices 120 is one, this one reminder device 120 can send the first, second, third, fourth, and fifth reminder information; when the number of reminder devices 120 is multiple, the first and third reminder information can be sent for one reminder device 120, and the second, fourth, and fifth reminder information can be sent for another reminder device 120; when the number of reminder devices 120 is multiple, a reminder message can also be sent for each reminder device.

[0145] The embodiment of the present application provides a control method for a range hood 1000. Figure 14 As shown, the control method may include the following steps:

[0146] S101 , controlling the light sensor to emit light.

[0147] S102: If the light sensor does not receive the reflected light, the reminder device is controlled to send a first reminder message to remind the user to replace the cleaning component.

[0148] It is understandable that when the optical sensor 100 does not receive the reflected light, the light shielding film 110 has been torn off and the cleaning component 80 has reached the specified replacement position. At this time, the user needs to replace the cleaning component 80.

[0149] In some embodiments, as Figure 15 As shown, the control method may include the following steps:

[0150] S103: Control the light sensor to emit outgoing light.

[0151] S104: If the light sensor receives the reflected light, control the reminder device to issue a third reminder message.

[0152] It is understandable that if the light sensor 100 receives reflected light, it means that the light shielding film 110 is still in place, and the cleaning component 80 does not need to be replaced, and the user can use it with confidence.

[0153] Exemplarily, the third reminder information may be a long blue light.

[0154] The embodiment of the present application provides a control method for a range hood 1000. Figure 16 As shown, the control method may include the following steps:

[0155] S201: Obtain indoor temperature.

[0156] Before cooking begins, the control panel 50 can control the temperature detection device 130 to detect the indoor temperature and obtain the value of the indoor temperature.

[0157] S202: Determine a current first cooling rate threshold V1 according to the indoor temperature.

[0158] S203: Obtain the cooling rate V0 of the control panel.

[0159] For example, the cooling rate V0 of the control panel 50 is obtained after the cooker is turned off after cooking is completed. When the temperature reaches T1, the timer starts, and when the temperature reaches T2, the timer stops. The cooling time S0 is calculated, and the cooling rate V0 of the control panel 50 is calculated as V0 = (T1 - T2) / S0.

[0160] Wherein, T1 may be 70°C and T2 may be 40°C.

[0161] S204: If the cooling rate V0 of the control panel is less than the current first cooling rate threshold V1, the reminder device is controlled to issue a second reminder message to remind the user to peel off a layer of the cleaning film.

[0162] It is understandable that when the control panel 50 detects that the cooling rate V0 is less than the current first cooling rate threshold V1, the accumulated oil on the control panel 50 is large, and the condition for peeling off a layer of cleaning film 801 is met.

[0163] For example, the second reminder information may be a long red light.

[0164] In some embodiments, as Figure 17 As shown, the control method may further include the following steps:

[0165] S301: Obtain indoor temperature.

[0166] S302: Determine a current first cooling rate threshold V1 and a current second cooling rate threshold V2 according to the indoor temperature.

[0167] S303: Obtain the cooling rate V0 of the control panel.

[0168] S304: If the cooling rate V0 of the control panel is greater than or equal to the current first cooling rate threshold V1 and less than or equal to the current second cooling rate threshold V2, the reminder device is controlled to issue a fourth reminder message.

[0169] It can be understood that the control panel 50 detects that the cooling rate V0 is greater than the current first cooling rate threshold V1 and less than the current second cooling rate threshold V2, and the accumulated amount of oil on the control panel 50 is medium.

[0170] Exemplarily, the fourth reminder information may be a long yellow light.

[0171] In some embodiments, as Figure 18 As shown, the control method may further include the following steps:

[0172] S401: Obtain indoor temperature.

[0173] S402: Determine a current first cooling rate threshold V1 and a current second cooling rate threshold V2 according to the indoor temperature.

[0174] S403: Obtain the cooling rate V0 of the control panel.

[0175] S404: If the cooling rate V0 of the control panel is greater than the current second cooling rate threshold V2, the reminder device is controlled to issue a fifth reminder message.

[0176] It can be understood that when the control panel 50 detects that the cooling rate V0 is greater than the current second cooling rate threshold V2, the accumulated amount of oil on the control panel 50 is small.

[0177] Exemplarily, the fifth reminder message may be a long green light.

[0178] It is understandable that when the user turns on the range hood 1000 to use it, the range hood 1000 can display a reminder message corresponding to the detection result when it was last shut down, and the user can replace or tear off the cleaning component 80 of the range hood 1000 according to the reminder message.

[0179] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art may understand and implement other variations of the disclosed embodiments by reviewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprise" does not exclude other components or steps, and "a" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in the claims. The fact that certain measures are recorded in different dependent claims does not mean that these measures cannot be combined to produce good results.

[0180] Although the present application has been described with reference to specific features and embodiments thereof, it is apparent that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely illustrative of the present application as defined by the appended claims and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, the present application is intended to include such modifications and variations as fall within the scope of the claims of the present application and their equivalents.

[0181] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A range hood, characterized in that: include: A housing having a mounting cavity formed therein and an air inlet and an air outlet communicating with the mounting cavity; a fan, the fan being disposed in the installation cavity; the fan being used to drive airflow into the installation cavity through the air inlet and discharged through the air outlet; A control panel is provided at one end of the housing close to the air inlet and located on the peripheral side of the housing; the control panel is used to control the operation of the range hood; a cleaning assembly, disposed on a side of the control panel away from the mounting cavity and covering the control panel; The cleaning component includes a plurality of cleaning films, which are stacked along a first direction and can be peeled off layer by layer; the first direction is perpendicular to the surface of the control panel close to the cleaning component.

2. The range hood according to claim 1, characterized in that: Each of the cleaning membranes comprises: a main body portion, covering the control panel; an ear hook portion connected to the main body and located on a peripheral side of the main body; The two main bodies of each two adjacent cleaning films are connected to each other, and the two ear hooks of each two adjacent cleaning films are separated from each other.

3. The range hood according to claim 2, characterized in that: The ear hanging portion is provided with a connection hole; the range hood further comprises: A connecting post is connected to the shell; the connecting post is passed through the connecting hole of each of the ear hanging parts to fix each of the ear hanging parts on the shell.

4. The range hood according to claim 1, characterized in that: The thickness of each cleaning film is less than or equal to 0.075 mm; and / or, The sum of thicknesses of the plurality of cleaning films of each cleaning assembly is less than or equal to 1.5 mm.

5. The range hood according to claim 1, characterized in that: Also includes: a smoke collecting plate, arranged at the air inlet; the smoke collecting plate is connected to the shell and is located on the peripheral side of the shell; The smoke collecting plate is movable relative to the housing to open or close the air inlet; When the smoke collecting plate closes the air inlet, the smoke collecting plate is located on a side of the control panel close to the air inlet; Each of the cleaning membranes includes a first sub-membrane and a second sub-membrane separated from each other, the first sub-membrane covers the control panel, and the second sub-membrane covers the smoke collecting plate.

6. The range hood according to claim 5, characterized in that: Also includes: A fixing plate is provided at one end of the housing close to the air inlet and is located between the fixing plate and the control panel; the fixing plate is located on the peripheral side of the housing; Each of the cleaning films further includes a third sub-film, the third sub-film is separated from the first sub-film and the second sub-film, and the third sub-film covers the fixing plate.

7. The range hood according to any one of claims 1 to 6, characterized in that: Also includes: A light sensor is provided on a side of the cleaning component close to the control panel; the light sensor is used to emit outgoing light and receive reflected light; a light-shielding film disposed between two adjacent cleaning films; the light-shielding film is used to receive the outgoing light and reflect the reflected light; a reminder device, for issuing a reminder message; Wherein, the light sensor and the reminder device are connected to the control panel, and the control panel is configured as follows: controlling the light sensor to emit the outgoing light; If the light sensor does not receive the reflected light, the reminding device is controlled to issue a first reminder message to remind the user to replace the cleaning component.

8. The range hood according to any one of claims 1 to 6, characterized in that: Also includes: A temperature detection device, used to detect the cooling rate of the control panel and the indoor temperature; a reminder device, for issuing a reminder message; Wherein, the temperature detection device and the reminder device are connected to the control panel, and the control panel is configured as follows: Get the indoor temperature; Determine a current cooling rate threshold according to the indoor temperature; Obtaining a cooling rate of the control panel; If the cooling rate of the control panel is less than the current cooling rate threshold, the reminding device is controlled to issue a second reminder message to remind the user to peel off a layer of the cleaning film.

9. A range hood control method, for controlling the range hood according to claim 7, characterized in that: include: controlling the light sensor to emit outgoing light; If the light sensor does not receive the reflected light, the reminder device is controlled to send a first reminder message to remind the user to replace the cleaning component.

10. A range hood control method, for controlling the range hood according to claim 8, characterized in that: include: Get the indoor temperature; Determine a current first cooling rate threshold V1 according to the indoor temperature; Obtaining a cooling rate V0 of the control panel; If the cooling rate V0 of the control panel is less than the current first cooling rate threshold V1, the reminding device is controlled to issue a second reminder message to remind the user to peel off a layer of the cleaning film.

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