Adjusting method of extractor hood and extractor hood

Abstract

The invention provides an adjustment method of an extractor hood and the extractor hood. The method comprises the following steps: acquiring an oil smoke concentration signal of the extractor hood; gradually adjusting the working gear of the range hood based on the oil smoke concentration signal; acquiring the corresponding oil smoke concentration variable quantity when the working gear is the highest gear; judging whether the oil smoke concentration variation meets a lifting trigger instruction or not; if the lampblack concentration variable quantity meets the lifting trigger instruction, a current cooking mode is judged based on the lampblack concentration variable quantity; obtaining a corresponding target lifting mode based on the current cooking mode; and adjusting the lifting height of the smoke gathering plate assembly and the smoke inlet cavity based on the target lifting mode. The lifting heights of the smoke gathering plate assembly and the smoke inlet cavity assembly can be automatically and flexibly adjusted according to the cooking mode, so that the smoke gathering plate assembly and the smoke inlet cavity assembly conform to the current cooking mode.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to an adjustment method for a range hood and a range hood. Background Art

[0002] A range hood is a device used in the kitchen to remove fumes, steam and odors generated during cooking. Its main function is to suck in fumes through the air duct system and exhaust them outdoors, thus keeping the kitchen air fresh.

[0003] With the development of science and technology, the functions and designs of range hoods are also constantly improving. In order to make the range hood capture oil smoke more effectively, reduce the escape of oil smoke, and improve the oil smoke extraction effect, the existing technology usually sets the range hood as a lifting range hood, that is, the height of the smoke inlet chamber and the smoke collection plate in the range hood can be adjusted to make the smoke inlet chamber and the smoke collection plate closer to the oil smoke source.

[0004] However, conventional lift range hoods adjust the smoke inlet chamber and the smoke collecting plate to a set fixed position by manual operation, that is, they can only be lifted to a set position, resulting in limited adjustment of the lift range hood and lack of flexibility. Summary of the invention

[0005] The present application provides a range hood adjustment method to solve the problem that the smoke inlet chamber and the smoke collecting plate are manually adjusted to a set fixed position, resulting in limited adjustment and inflexibility of the lifting range hood.

[0006] In a first aspect, the present application provides a method for adjusting a range hood, wherein the range hood device comprises a smoke inlet chamber assembly, a smoke collecting plate assembly, a bellows assembly and a range hood body, wherein the range hood body is mounted on the bellows assembly and hung on a wall, and the smoke collecting plate assembly and the smoke inlet chamber assembly are slidably connected to the bellows assembly; the smoke inlet chamber assembly is slidably connected to the smoke collecting plate assembly;

[0007] Methods include:

[0008] Obtaining a smoke concentration signal of a range hood;

[0009] The working gear of the range hood is adjusted successively based on the oil smoke concentration signal;

[0010] Obtain the corresponding change in oil smoke concentration when the working gear is the highest gear;

[0011] Determine whether the change in oil smoke concentration satisfies the lifting and lowering trigger instructions;

[0012] If the change in oil smoke concentration satisfies the lifting and lowering triggering instructions, the current cooking mode is determined based on the change in oil smoke concentration;

[0013] Based on the current cooking mode, obtain the corresponding target lifting mode;

[0014] The lifting height of the smoke collecting plate assembly and the smoke inlet chamber is adjusted based on the target lifting mode.

[0015] A further technical solution is that the bellows assembly is provided with a first push rod motor, the smoke collecting plate assembly is provided with a second push rod motor, the fixed end of the first push rod motor is fixed to the bellows assembly, and the moving end of the first push rod motor is fixed to the smoke collecting plate assembly; the fixed end of the second push rod motor is fixed to the smoke collecting plate assembly, and the moving end of the second push rod motor is fixed to the smoke inlet chamber assembly;

[0016] Adjust the lifting height of the smoke collecting plate assembly and the smoke inlet chamber based on the target lifting mode, including:

[0017] Obtaining a first preset position and a second preset position based on the target lifting mode;

[0018] The first push rod motor is used to drive the smoke collecting plate assembly, the second push rod motor and the smoke inlet chamber assembly to move downward from the default position to the first preset position synchronously;

[0019] The second push rod motor is used to drive the smoke inlet chamber assembly to move downward from the first preset position to the second preset position.

[0020] A further technical solution is to obtain a corresponding target lifting mode based on the current cooking mode, including:

[0021] Based on the current cooking mode, the target lifting mode corresponding to the current cooking mode is searched from the preset cooking mode-optimal lifting mode data table.

[0022] A further technical solution is to determine the current cooking mode based on the change in oil smoke concentration, including:

[0023] If the change in the oil smoke concentration is less than or equal to the first threshold, determining that the current cooking mode is the first cooking mode;

[0024] If the change in the oil smoke concentration is greater than the first threshold value and less than or equal to the second threshold value, it is determined that the current cooking mode is the second cooking mode;

[0025] If the change in the oil smoke concentration is greater than the second threshold, it is determined that the current cooking mode is the third cooking mode.

[0026] A further technical solution is that after adjusting the working gear of the range hood one by one based on the oil fume concentration signal, the method further includes:

[0027] The change in oil fume concentration corresponding to the adjusted working gear is obtained successively;

[0028] If the change in oil fume concentration corresponding to the middle gear does not satisfy the lifting trigger instruction when the working gear of the range hood is adjusted to the middle gear, the adjustment of the working gear of the range hood is stopped, and the middle gear is used as the final working gear of the range hood.

[0029] A further technical solution is that the bellows assembly includes a third motor and an air duct module, the third motor is located in the air duct module, and the working gear of the range hood is adjusted successively based on the oil fume concentration signal, including:

[0030] adjusting the rotation speed of the third motor based on the oil smoke concentration signal;

[0031] Based on the multiple rotational speeds of the third motor, multiple working gears corresponding to the range hood are obtained.

[0032] A further technical solution is that after adjusting the lifting height of the smoke collecting plate assembly and the smoke inlet chamber based on the target lifting mode, the method further includes:

[0033] If a shutdown command of the range hood is received;

[0034] The first push rod motor is used to drive the smoke collecting plate assembly, the second push rod motor and the smoke inlet chamber assembly to move upward to the initial position synchronously;

[0035] The second push rod motor is used to drive the smoke inlet chamber assembly to move upward until the smoke inlet chamber assembly is completely hidden in the smoke collecting plate assembly.

[0036] In a second aspect, the present application provides a range hood device, the range hood device comprising: a smoke inlet chamber assembly, a smoke collecting plate assembly, a bellows assembly and a range hood body, the range hood body being mounted on the bellows assembly and hung on a wall;

[0037] The smoke inlet chamber assembly includes a smoke inlet and a first oil box, and the first oil box is used to receive condensed oil in the smoke inlet chamber assembly;

[0038] The bellows assembly is provided with a first push rod motor, the fixed end of the first push rod motor is fixed to the bellows assembly, and the moving end of the first push rod motor is fixed to the smoke collecting plate assembly;

[0039] The smoke collecting plate assembly includes an oil smoke monitoring module, a second oil box, a control switch and a second push rod motor. The oil smoke monitoring module is communicatively connected with the control switch. The oil smoke monitoring module is used to obtain an oil smoke concentration signal of the range hood. The fixed end of the second push rod motor is fixed to the smoke collecting plate assembly, the moving end of the second push rod motor is fixed to the smoke inlet chamber assembly, and the second oil box is used to receive oil stains in the air duct of the bellows assembly.

[0040] The control switch is used to execute any of the above methods.

[0041] Its further technical solution is that the oil fume monitoring module includes an inlet decorative cover, an oil fume sensor, a fixing cover, a fixing seat, a connector, and a connecting pipe;

[0042] Among them, the inlet decorative cover is provided with a number of hollow air inlet holes, the oil fume sensor is provided with an oil fume inlet and an oil fume outlet, the oil fume sensor is placed above the fixed seat, the oil fume inlet is inserted into the through hole set on the fixed seat, the oil fume outlet corresponds to the inner side of the air outlet nozzle on the fixed cover, the fixed cover is fixedly connected to the fixed seat, and the oil fume sensor is located between the fixed cover and the fixed seat; the connecting head is arranged in the bellows assembly; the connecting pipe connects the air outlet nozzle on the fixed cover and the air inlet nozzle on the connecting head.

[0043] A further technical solution is that the oil fume sensor is further provided with a first air inlet and a second air inlet, and the first air inlet and the second air inlet are respectively located on the left and right sides of the oil fume sensor.

[0044] The above-mentioned technical scheme provided by the embodiment of the present application has the following advantages compared with the prior art: the present application determines the current cooking mode based on the change in oil fume concentration, and obtains the corresponding target lifting mode based on the current cooking mode; that is, the present application can automatically and flexibly adjust the lifting height of the smoke collecting plate assembly and the smoke inlet chamber assembly according to the cooking mode, so that the smoke collecting plate assembly and the smoke inlet chamber assembly conform to the current cooking mode, thereby improving the existing lifting range hood in which the smoke inlet chamber and the smoke collecting plate are adjusted to a set fixed position by manual operation, that is, the lifting and lowering of only a set position can be completed, resulting in the problem that the adjustment of the lifting range hood is relatively limited and not flexible enough. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0046] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0047] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0048] Figure 1 A three-dimensional diagram of a range hood in a turned-off state provided in an embodiment of the present application;

[0049] Figure 2A three-dimensional diagram of a range hood in an open state provided by an embodiment of the present application;

[0050] Figure 3 A three-dimensional stereogram of a bellows assembly provided in an embodiment of the present application;

[0051] Figure 4 for Figure 2 Three-dimensional diagram of some structures in the state;

[0052] Figure 5 for Figure 2 A schematic diagram of the assembly of the smoke inlet chamber assembly and the housing rear plate assembly in the state;

[0053] Figure 6 yes Figure 2 Three-dimensional image after removing the side panels of the shell;

[0054] Figure 7 yes Figure 2 A cross-sectional view of the range hood in the state;

[0055] Figure 8 for Figure 7 A magnified schematic diagram of the local A in the middle;

[0056] Fig. 9 for Figure 2 Three-dimensional image after removing the decorative glass, front beam and other parts;

[0057] Fig.10 for Figure 1 Front structural cross-section of the range hood in the state;

[0058] Fig.11 for Fig.10 A magnified schematic diagram of the part B in the middle;

[0059] Fig.12 This is a flowchart of oil smoke detection control in one embodiment provided by the present application;

[0060] Fig.13 A schematic diagram of the process of the first embodiment provided in this application;

[0061] Fig.14 Schematic diagram of the range hood control device provided in this application.

[0062] Description of Figure Numbers:

[0063] Smoke inlet chamber assembly 1, smoke inlet port 101, first oil box 102, push rod fixing buckle 103, smoke inlet chamber front plate 104, smoke inlet chamber rear plate 105, third connecting outer guide rail 1201, third connecting inner guide rail 1202, second connecting outer guide rail 1301, second connecting inner guide rail 1302, smoke collecting plate shell assembly 2, light board assembly 201, water tank flap 202, oil fume monitoring module 203, water tank assembly 204, shell rear plate assembly 205, lower cross beam 206, guide rail fixing plate 207, shell side plate 208, front beam 209, decorative glass 210, second oil box 211, top cover 212, oil box fixing seat 213, water tank fixing seat 214, rear beam 215, oil brush 216, first push rod fixing seat 220, control switch 221, first An outer connecting rail 2301, a first inner connecting rail 2302, a duct rear side sealing gasket 2051, a second push rod motor 2052, a roller 2053, an inlet decorative cover 2031, a fixing seat 2032, a fume sensor 2033, a fixing cover 2034, an outlet connector 2035, a connecting pipe 2036, a sealing ring light 2037, a bellows assembly 3, an air duct module 301, a bellows top plate 302, a bellows back plate 303, a bellows enclosure 304, a bellows bottom plate 305, a bellows reinforcement plate 306, an air duct enclosure 307, a guide rail fixed side plate 308, a decorative enclosure 309, a connecting crossbeam 3047, a first push rod motor 3201, a cleaning assembly 311, a U-shaped sealing gasket 310, a strip sealing gasket 312, and a third motor 3330. DETAILED DESCRIPTION

[0064] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0065] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0066] A range hood is a device used in the kitchen to remove fumes, steam and odors generated during cooking. Its main function is to suck in fumes through the air duct system and exhaust them outdoors, thus keeping the kitchen air fresh.

[0067] With the development of science and technology, the functions and designs of range hoods are also constantly improving. In order to make the range hood capture oil smoke more effectively, reduce the escape of oil smoke, and improve the oil smoke extraction effect, the existing technology usually sets the range hood as a lifting range hood, that is, the height of the smoke inlet chamber and the smoke collection plate in the range hood can be adjusted to make the smoke inlet chamber and the smoke collection plate closer to the oil smoke source.

[0068] However, conventional lift range hoods adjust the smoke inlet chamber and the smoke collecting plate to a set fixed position by manual operation, that is, they can only be lifted to a set position, resulting in limited adjustment of the lift range hood and lack of flexibility.

[0069] In order to solve the technical problem in the prior art that the smoke inlet chamber and the smoke collection plate are adjusted to a set fixed position by manual operation, that is, only the lifting and lowering of a set position can be completed, resulting in limited adjustment and insufficient flexibility of the lifting range hood, the present application provides a range hood and an adjustment method for the range hood, which can automatically adjust the lifting and lowering positions of the smoke inlet chamber and the smoke collection plate according to the cooking scene, thereby improving the flexibility of the adjustment of the lifting range hood.

[0070] like Figure 1-Figure 11 As shown, the range hood provided in the present application includes a smoke inlet chamber assembly 1, a smoke collecting plate assembly 2 and a bellows assembly 3.

[0071] Among them, the smoke inlet chamber assembly 1 includes a smoke inlet port 101, a first oil box 102, a push rod fixing buckle 103, a smoke inlet chamber front plate 104, a smoke inlet chamber rear plate 105, and a second connecting inner guide rail 1302 distributed on both sides of the smoke inlet chamber and a third connecting inner guide rail 1202 installed on both sides of the smoke inlet chamber rear plate 105.

[0072] Specifically, the second connecting inner guide rails 1302 are distributed on both sides of the smoke inlet chamber assembly 1, and the third connecting inner guide rails 1202 are installed on both sides of the smoke inlet chamber rear plate 105. The third connecting outer guide rail 1201, the air duct rear side sealing gasket 2051 and the second push rod motor 2052 are installed on the front of the shell rear plate assembly 205, and rollers 2053 are also installed on both sides of the back. When the smoke inlet chamber assembly 1 is assembled with the smoke collecting plate assembly 2, the second connecting inner guide rail 1302 cooperates with the second connecting outer guide rail 1301 in the air duct enclosure 307, and the strip sealing gasket 312 on the inner side of the air duct enclosure 307 cooperates with the smoke inlet chamber front plate 104 for sealing; when the smoke inlet chamber assembly 1 is assembled with the outer shell rear plate assembly 205, the third connecting inner guide rail 1202 cooperates with the third connecting inner guide rail 1201, the air duct rear side sealing gasket 2051 cooperates with the smoke inlet chamber rear plate 105 for sealing, and at the same time, the outer shell rear plate assembly 205 cooperates with the air duct rear side sealing gasket 2051 for sealing, and the push rod 2052 at the lower end of the second push rod motor is fixedly connected with the push rod fixing buckle 103.

[0073] The smoke collecting plate assembly 2 includes a light board assembly 201, a water tank flap 202, an oil smoke monitoring module 203, a water tank assembly 204, a shell rear plate assembly 205, a lower cross beam 206, a guide rail fixing plate 207, a shell side plate 208, a front beam 209, a decorative glass 210, a second oil box 211, a top cover 212, an oil box fixing seat 213, a water tank fixing seat 214, a rear beam 215, an oil brush 216, a fixed shaft, a first push rod fixing seat 220, a control switch 221, a first connecting inner guide rail 2302, etc. The front side of the shell rear plate assembly 205 is equipped with a third connecting outer guide rail 1201, a duct rear side sealing gasket 2051 and a second push rod motor 2052, and the back side is also equipped with a roller 2053.

[0074] Among them, the guide rail fixing plate 207, the outer shell side plate 208, and the top cover 212 are all provided with left-right symmetrical parts. The first connecting inner guide rail 2302 is installed on the guide rail fixing plate 207. The outer shell side plate 208, the guide rail fixing plate 207 and the first connecting inner guide rail 2302 form a side plate assembly. When assembled with the bellows assembly 3, the first connecting inner guide rail 2302 needs to be matched with the first connecting outer guide rail 2301. The oil box fixing seat 213 and the water tank fixing seat 214 are fixedly connected to the front beam 209 and the lower cross beam 206 respectively. The second oil box 211 is installed in cooperation with the second oil box fixing seat 213, and the tail is placed on the lower cross beam 206; the water tank assembly 204 is installed in cooperation with the water tank fixing seat 214.

[0075] The bellows assembly 3 may include a semi-sealed bellows consisting of a bellows enclosure 304, a bellows top plate 302, a bellows back plate 303, a bellows bottom plate 305, a bellows reinforcement plate 306, and a connecting crossbeam 3047, in which an air duct module 301 consisting of a volute, an impeller, an air guide ring, a motor, a nut, etc., and a first push rod motor 3201 for providing a power source for the smoke collecting plate assembly 2 are installed, a decorative enclosure 309 is installed on the front of the bellows enclosure, and a bellows reinforcement plate 306 is fixed to the side of the bellows enclosure 304. The air duct enclosure 307 is connected, the cleaning assembly 311 is installed on the inner side of the bellows reinforcement plate 306, the first connecting outer guide rail 2301 is installed on the outer side of the bellows reinforcement plate 306, and is connected with the inner guide rail on the smoke collecting plate assembly 2, the air duct enclosure 307 is connected with the bellows enclosure 304 and the bellows bottom plate 305, the air duct enclosure 307 is equipped with a guide rail fixing side plate 308 and a second connecting outer guide rail 1301, the air duct enclosure 307 is equipped with a U-shaped sealing gasket 310 on the outer side, and a strip sealing gasket 312 on the inner side,

[0076] Among them, a mounting hook is provided on the back of the bellows assembly 3 so that the range hood body can be hung on the wall in a fixed state.

[0077] When the range hood is in working state, the smoke inlet chamber assembly 1 and the smoke collecting plate assembly 2 will successively descend to specific positions, so that the light board assembly 201 and the smoke inlet 102 are in a relatively fixed position; the smoke monitoring module 203 can monitor the changes in smoke concentration during cooking in real time, and automatically raise and lower the smoke inlet chamber assembly and the smoke collecting plate assembly to another specific position according to the changes, so as to match the current cooking mode and put the machine in the optimal state of smoke suction and exhaust effect; when the range hood is turned off, the smoke collecting plate assembly 2 and the smoke inlet chamber assembly 1 can both be retracted upward to the set position, and the smoke inlet chamber assembly 1 is completely retracted in the smoke collecting plate assembly 2, and the bottom is flush with the bottom of the light board assembly 201. When installed, the bottom of the range hood can be flush with the lower plane of the top cabinet, that is, the entire machine is completely hidden inside the top cabinet.

[0078] Among them, the oil fume monitoring module 203 is used to obtain the oil fume concentration signal of the range hood, the first oil box 102 is used to receive the condensed oil in the smoke chamber assembly 1, the second oil box 211 is used to receive the oil in the air duct of the bellows assembly 3, and the control switch 221 is used to execute the adjustment method mentioned in the following embodiments.

[0079] The oil smoke generated during cooking contains a lot of grease, particles and other impurities. After these substances enter the oil smoke sensor, they will adhere to the sensitive elements of the oil smoke sensor, causing the performance of the oil smoke sensor to deteriorate, thus affecting the service life of the oil smoke sensor. In addition, the particles and grease in the oil smoke can easily block the airflow channel of the oil smoke sensor, affecting the normal operation of the oil smoke sensor, causing the oil smoke sensor to be unable to accurately detect the oil smoke concentration, or even completely fail.

[0080] Therefore, in some embodiments, in order to improve the service life and detection accuracy of the oil fume sensor, an oil fume detection channel may be provided in the range hood, as will be described below for details.

[0081] The oil fume monitoring module 203 includes an inlet decorative cover 2031 , an oil fume sensor 2033 , a fixing cover 2034 , a fixing seat 2032 , a connector, and a connecting pipe 2036 .

[0082] Among them, the front end of the inlet decorative cover 2031 is provided with a plurality of hollow air inlet holes, and the rear end can pass through the through hole on the lamp plate glass and be connected with the fixing seat 2032; the oil fume sensor 2033 is an electrical component that can detect the concentration of oil fume, and is provided with an oil fume inlet and an oil fume outlet. The oil fume sensor 2033 is placed above the fixing seat 2032, and the oil fume inlet on it can just be inserted into the through hole set on the fixing seat 2032. The oil fume outlet corresponds to the inner side of the air outlet nozzle on the fixing cover 2034, and a sealing ring is clamped between the two ports to ensure the sealing effect. The fixing cover 2034 is fixed with the fixing seat 2032 through the snap-fit ​​structure designed thereon, and the oil fume sensor 2033 is pressed tightly inside it. The upper end of the connecting head can be inserted into the hole set in the bellows bottom plate 305 through the snap-fit ​​structure, and the matching surface can be sealed with silicone; the connecting pipe 2036 is used to connect the air outlet nozzle on the fixing cover 2034 and the air inlet nozzle on the connecting head, forming a connecting channel for partial oil fume circulation, namely the oil fume detection channel.

[0083] During the cooking process, the third motor 3330 in the air duct module 301 will drive the impeller to rotate, forming a strong negative pressure area inside the bellows, that is, the upper end of the connecting head has a certain negative pressure, so that part of the oil smoke enters the oil smoke sensor 2033 through the small hole on the inlet decorative cover 2031, and then enters the bellows through the fixed cover 2034, the connecting pipe 2036 and the connecting head.

[0084] In this way, by designing the oil fume detection channel, the oil fume detection process can extract a small amount of cooking oil fume instead of the real-time oil fume concentration, preventing a large amount of oil fume during the cooking process from entering the oil fume sensor, further improving the service life of the sensor.

[0085] In addition, in order to further improve the accuracy of the oil fume sensor detection, the oil fume sensor 2033 is also provided with a first air inlet and a second air inlet, and the first air inlet and the second air inlet are respectively located on the left and right sides of the oil fume sensor 2033.

[0086] Among them, air avoidance grooves can be provided on the left and right sides of the fixed cover 2034 to enable the first air inlet and the second air inlet on the oil smoke sensor 2033 to communicate with the clean air in the smoke collecting plate assembly 2.

[0087] In this way, the first air inlet and the second air inlet on the oil fume sensor can form an effective protective air curtain to prevent the oil fume sensor from being wrapped by the oil fume, thereby improving the detection accuracy of the oil fume sensor.

[0088] Based on the range hood of the above embodiment, the present application also provides a method for adjusting the range hood, see Fig.12 and 13 The first embodiment of the range hood adjustment method provided in the present application comprises the following steps:

[0089] Step 110: Acquire the oil smoke concentration signal of the range hood.

[0090] Among them, an oil fume sensor can be used to detect the oil fume concentration in real time, and transmit different oil fume concentration signals to the control switch according to different oil fume concentrations, so that the control switch obtains the oil fume concentration signal of the range hood.

[0091] Step 120: sequentially adjusting the working gear of the range hood based on the oil smoke concentration signal.

[0092] For example, the range hood may include working gear 1, working gear 2, working gear 3, and working gear 4, and the gears of working gear 1, working gear 2, working gear 3, and working gear 4 increase in sequence.

[0093] When the oil fume concentration signal is received, the working gear of the range hood can be adjusted from working gear 1 to working gear 2, and then from working gear 2 to working gear 3, etc., so as to achieve successive adjustment of the working gear of the range hood.

[0094] Step 130: Obtain the corresponding change in oil fume concentration when the working gear is the highest gear.

[0095] Step 140: Determine whether the change in oil smoke concentration satisfies the lifting and lowering trigger instructions.

[0096] Step 150: If the change in oil smoke concentration satisfies the lifting and lowering triggering instructions, the current cooking mode is determined based on the change in oil smoke concentration.

[0097] For example, when the change in oil smoke concentration exceeds a preset range, it can be considered that the change in oil smoke concentration satisfies the lifting and lowering trigger instructions.

[0098] For step 130 and step 140, that is, when the range hood is adjusted to the highest working gear, the change in oil fume concentration is still very high, and it is necessary to adjust the lifting mode to further optimize the oil fume extraction effect.

[0099] Step 160: Based on the current cooking mode, obtain the corresponding target lifting mode.

[0100] For example, if the current cooking mode is cooking mode 1, the corresponding target lifting mode may be target lifting mode 1; if the current cooking mode is cooking mode 2, the corresponding target lifting mode may be target lifting mode 2; if the current cooking mode is cooking mode 3, the corresponding target lifting mode may be target lifting mode 3, and so on.

[0101] Step 170: adjusting the lifting height of the smoke collecting plate assembly and the smoke inlet chamber based on the target lifting mode.

[0102] For example, the target lifting mode already includes the lifting height values ​​of the smoke collecting plate assembly and the smoke inlet chamber, and the lifting heights of the smoke collecting plate assembly and the smoke inlet chamber can be adjusted directly according to the lifting height values ​​in the target lifting mode.

[0103] In this way, the current cooking mode is determined based on the change in oil fume concentration, and the corresponding target lifting mode is obtained based on the current cooking mode; that is, the present application can automatically and flexibly adjust the lifting height of the smoke collecting plate assembly and the smoke inlet chamber assembly according to the cooking mode, so that the smoke collecting plate assembly and the smoke inlet chamber assembly conform to the current cooking mode, thereby improving the existing lifting range hood in which the smoke inlet chamber and the smoke collecting plate are adjusted to a set fixed position by manual operation, that is, the lifting and lowering of only a set position can be completed, resulting in the lifting range hood being relatively limited in adjustment and not flexible enough.

[0104] Although the smoke collecting plate assembly and the smoke inlet assembly can perform lifting motion together, which can solve the problem of poor smoke collecting effect to a certain extent, the smoke inlet cannot perform lifting motion independently, resulting in the oil suction port being unable to get closer to the smoke source. Therefore, the present application provides motors on the range hood to control the movement of the smoke collecting plate assembly and the smoke inlet assembly respectively. For details, please refer to the second embodiment below.

[0105] Referring to the second embodiment of the range hood adjustment method provided in the present application, the method comprises the following steps:

[0106] Step 210: Acquire the oil smoke concentration signal of the range hood.

[0107] Step 220: sequentially adjusting the working gear of the range hood based on the oil smoke concentration signal.

[0108] Step 230: Obtain the corresponding change in oil fume concentration when the working gear is the highest gear.

[0109] Step 240: Determine whether the change in oil smoke concentration satisfies the lifting and lowering trigger instructions.

[0110] Step 250: If the change in oil smoke concentration satisfies the lifting and lowering triggering instructions, the current cooking mode is determined based on the change in oil smoke concentration.

[0111] Step 260: Based on the current cooking mode, obtain the corresponding target lifting mode.

[0112] Step 270: Obtain a first preset position and a second preset position based on the target lifting mode.

[0113] Step 280: Use the first push rod motor to drive the smoke collecting plate assembly, the second push rod motor and the smoke inlet chamber assembly to move downward from the default position to the first preset position synchronously.

[0114] Step 290: Use the second push rod motor to drive the smoke inlet chamber assembly to move downward from the first preset position to the second preset position.

[0115] In this way, after using the first push rod motor to drive the smoke collecting plate assembly, the second push rod motor and the smoke inlet chamber assembly to move downward from the default position to the first preset position synchronously, the present application then uses the second push rod motor to drive the smoke inlet chamber assembly to move downward from the first preset position to the second preset position, so that the smoke inlet chamber assembly can perform lifting and lowering movements independently, thereby getting closer to the smoke source.

[0116] Referring to the third embodiment of the range hood adjustment method provided in the present application, the method comprises the following steps:

[0117] Step 310: Acquire the oil smoke concentration signal of the range hood.

[0118] Step 320: sequentially adjusting the working level of the range hood based on the oil smoke concentration signal.

[0119] Among them, the working gear of the range hood can be changed by adjusting the rotation speed of the motor.

[0120] For example, the rotation speed of the third motor is adjusted sequentially based on the oil smoke concentration signal; and based on multiple rotation speeds of the third motor, multiple working gears corresponding to the range hood are obtained.

[0121] That is, after the control switch obtains the oil smoke concentration signal, it can automatically adjust the start and stop and speed of the third motor in the air duct module according to the set program, thereby controlling the different working gears of the range hood during the cooking process.

[0122] Step 330: Obtain the corresponding change in oil fume concentration when the working gear is the highest gear.

[0123] Step 340: Determine whether the change in oil smoke concentration satisfies the lifting and lowering trigger instructions.

[0124] Step 350: If the change in oil smoke concentration satisfies the lifting and lowering triggering instructions, the current cooking mode is determined based on the change in oil smoke concentration.

[0125] In some embodiments, step 350 may include the following:

[0126] 1) If the change in oil smoke concentration is less than or equal to a first threshold, it is determined that the current cooking mode is the first cooking mode.

[0127] 2) If the change in oil smoke concentration is greater than the first threshold and less than or equal to the second threshold, it is determined that the current cooking mode is the second cooking mode.

[0128] 3) If the change in the oil smoke concentration is greater than the second threshold, it is determined that the current cooking mode is the third cooking mode.

[0129] Among them, cooking modes may include frying mode, stir-frying mode, steaming and stewing mode, etc.

[0130] Step 360: Based on the current cooking mode, search for the target lifting mode corresponding to the current cooking mode from the preset cooking mode-optimal lifting mode data table.

[0131] For example, the preset cooking mode-optimal lifting mode data table can record the optimal lifting mode corresponding to each cooking mode.

[0132] For example, frying mode corresponds to lifting mode 1; stir-frying mode corresponds to lifting mode 2; steaming, stewing and boiling mode corresponds to lifting mode 3, and so on.

[0133] Step 370: adjusting the lifting height of the smoke collecting plate assembly and the smoke inlet chamber based on the target lifting mode.

[0134] Referring to the fourth embodiment of the range hood adjustment method provided in the present application, the method comprises the following steps:

[0135] Step 410: Acquire the oil smoke concentration signal of the range hood.

[0136] Step 420: sequentially adjusting the working level of the range hood based on the oil smoke concentration signal.

[0137] Step 430: successively obtaining the change in oil fume concentration corresponding to the adjusted working gear.

[0138] Step 440: If the change in oil fume concentration corresponding to the middle gear does not satisfy the lifting trigger instruction when the working gear of the range hood is adjusted to the middle gear, stop adjusting the working gear of the range hood and use the middle gear as the final working gear of the range hood.

[0139] That is to say, when the working gear of the range hood is adjusted to the middle gear, the oil fume concentration changes very little, and most of the oil fume can be sucked into the air duct module of the range hood and discharged to the outside, that is, the oil fume concentration has been effectively controlled and there is no need to further adjust the working gear.

[0140] Since higher working gears have higher speeds and relatively higher noise, and higher working gears consume more energy, when the oil fume concentration has been effectively controlled, the noise and energy consumption generated by high-speed operation can be reduced by maintaining the gear in the middle.

[0141] In addition, since the oil fume concentration can be effectively controlled by adjusting the working gear, there is no need to adjust the lifting height of the smoke collecting plate assembly and the smoke inlet chamber assembly, thereby reducing the number of movements of mechanical parts such as the smoke collecting plate assembly and the smoke inlet chamber assembly, reducing wear and failure rate, and extending the service life of the smoke collecting plate assembly and the smoke inlet chamber assembly.

[0142] In some embodiments, in order to reduce the occupied area of ​​the range hood when not in use, the smoke inlet chamber assembly can be hidden in the smoke collecting plate assembly. For details, please refer to the following steps:

[0143] Step 510: If a command to turn off the range hood is received.

[0144] Step 510: using the first push rod motor to drive the smoke collecting plate assembly, the second push rod motor and the smoke inlet chamber assembly to move upward to the initial position synchronously.

[0145] Step 510: Use the second push rod motor to drive the smoke inlet chamber assembly to move upward until the smoke inlet chamber assembly is completely hidden in the smoke collecting plate assembly.

[0146] In this way, by utilizing the first push rod motor to drive the smoke collecting plate assembly, the second push rod motor and the smoke inlet chamber assembly to move upward to the initial position synchronously, the overall height of the range hood can be lowered. In addition, by utilizing the second push rod motor to drive the smoke inlet chamber assembly to move upward until the smoke inlet chamber assembly is completely hidden in the smoke collecting plate assembly, the occupied area of ​​the range hood when not in use can be reduced.

[0147] Similarly, during the startup phase of the range hood, the first push rod motor can be used to drive the smoke collecting plate assembly, the second push rod motor and the smoke inlet chamber assembly to move downward, and stop after reaching the set position. At the same time, the second push rod motor can drive the smoke inlet chamber assembly to move downward, and stop after reaching the set position.

[0148] like Fig.14 As shown, the embodiment of the present application provides a range hood control device, including a processor 111, a communication interface 112, a memory 113 and a communication bus 114, wherein the processor 111, the communication interface 112, and the memory 113 communicate with each other through the communication bus 114.

[0149] Memory 113, used for storing computer programs;

[0150] In one embodiment of the present application, the processor 111 is used to execute the program stored in the memory 113 to implement the control method of XX provided by any one of the above method embodiments, including:

[0151] Obtaining a smoke concentration signal of a range hood;

[0152] The working gear of the range hood is adjusted successively based on the oil smoke concentration signal;

[0153] Obtain the corresponding change in oil smoke concentration when the working gear is the highest gear;

[0154] Determine whether the change in oil smoke concentration satisfies the lifting and lowering trigger instructions;

[0155] If the change in oil smoke concentration satisfies the lifting and lowering triggering instructions, the current cooking mode is determined based on the change in oil smoke concentration;

[0156] Based on the current cooking mode, obtain the corresponding target lifting mode;

[0157] The lifting height of the smoke collecting plate assembly and the smoke inlet chamber is adjusted based on the target lifting mode.

[0158] An embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the steps of the XX method provided in any of the aforementioned method embodiments are implemented.

[0159] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, i.e., they may be located in one place, or may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0160] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the relevant technology can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods of each embodiment or some parts of the embodiment.

[0161] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0162] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A method for adjusting a range hood, characterized in that: The range hood comprises a smoke inlet chamber assembly, a smoke collecting plate assembly, a bellows assembly and a range hood body, wherein the range hood body is mounted on the bellows assembly and hung on a wall, the smoke collecting plate assembly and the smoke inlet chamber assembly are slidably connected to the bellows assembly; the smoke inlet chamber assembly is slidably connected to the smoke collecting plate assembly; Methods include: Obtaining a smoke concentration signal of a range hood; sequentially adjusting the working gear of the range hood based on the oil smoke concentration signal; Obtaining the corresponding change in oil fume concentration when the working gear is the highest gear; Determining whether the change in oil smoke concentration satisfies a lifting trigger instruction; If the change in the oil smoke concentration satisfies the lifting and lowering triggering instruction, determining the current cooking mode based on the change in the oil smoke concentration; Based on the current cooking mode, obtaining a corresponding target lifting mode; The lifting heights of the smoke collecting plate assembly and the smoke inlet chamber are adjusted based on the target lifting mode.

2. The range hood adjustment method according to claim 1, characterized in that: The bellows assembly is provided with a first push rod motor, and the smoke collecting plate assembly is provided with a second push rod motor, the fixed end of the first push rod motor is fixed to the bellows assembly, and the moving end of the first push rod motor is fixed to the smoke collecting plate assembly; the fixed end of the second push rod motor is fixed to the smoke collecting plate assembly, and the moving end of the second push rod motor is fixed to the smoke inlet chamber assembly; The adjusting the lifting height of the smoke collecting plate assembly and the smoke inlet chamber based on the target lifting mode includes: Obtaining a first preset position and a second preset position based on the target lifting mode; The first push rod motor is used to drive the smoke collecting plate assembly, the second push rod motor and the smoke inlet chamber assembly to move downward from the default position to the first preset position synchronously; The second push rod motor is used to drive the smoke inlet chamber assembly to move downward from the first preset position to the second preset position.

3. The range hood adjustment method according to claim 1, characterized in that: The acquiring a corresponding target lifting mode based on the current cooking mode includes: Based on the current cooking mode, the target lifting mode corresponding to the current cooking mode is searched from a preset cooking mode-optimal lifting mode data table.

4. The range hood adjustment method according to claim 1, characterized in that: The determining the current cooking mode based on the change in the oil smoke concentration includes: If the change in the oil smoke concentration is less than or equal to the first threshold, determining that the current cooking mode is the first cooking mode; If the change in the oil smoke concentration is greater than the first threshold value and less than or equal to the second threshold value, determining that the current cooking mode is the second cooking mode; If the change in the oil smoke concentration is greater than the second threshold, it is determined that the current cooking mode is the third cooking mode.

5. The range hood adjustment method according to claim 1, characterized in that: After successively adjusting the working gear of the range hood based on the oil fume concentration signal, the method further includes: The change in oil fume concentration corresponding to the adjusted working gear is obtained successively; If, when the working gear of the range hood is adjusted to an intermediate gear, the change in oil fume concentration corresponding to the intermediate gear does not satisfy the lifting trigger instruction, the adjustment of the working gear of the range hood is stopped, and the intermediate gear is used as the final working gear of the range hood.

6. The range hood adjustment method according to claim 1, characterized in that: The bellows assembly includes a third motor and an air duct module, the third motor is located in the air duct module, and the step of successively adjusting the working gear of the range hood based on the oil fume concentration signal includes: adjusting the rotation speed of the third motor sequentially based on the oil smoke concentration signal; Based on the multiple rotational speeds of the third motor, multiple working gears corresponding to the range hood are obtained.

7. The range hood adjustment method according to claim 1, characterized in that: After adjusting the lifting height of the smoke collecting plate assembly and the smoke inlet chamber based on the target lifting mode, the method further includes: If a shutdown command of the range hood is received; The first push rod motor is used to drive the smoke collecting plate assembly, the second push rod motor and the smoke inlet chamber assembly to move upward to the initial position synchronously; The second push rod motor is used to drive the smoke inlet chamber assembly to move upward until the smoke inlet chamber assembly is completely hidden in the smoke collecting plate assembly.

8. A range hood, characterized in that: The range hood comprises: a smoke inlet chamber assembly, a smoke collecting plate assembly, a bellows assembly and a range hood body, wherein the range hood body is mounted on the bellows assembly and hung on a wall; Wherein, the smoke inlet chamber assembly comprises a smoke inlet port and a first oil box, and the first oil box is used to hold condensed oil in the smoke inlet chamber assembly; The bellows assembly is provided with a first push rod motor, the fixed end of the first push rod motor is fixed to the bellows assembly, and the moving end of the first push rod motor is fixed to the cigarette collecting plate assembly; The smoke collecting plate assembly includes an oil smoke monitoring module, a second oil box, a control switch and a second push rod motor. The oil smoke monitoring module is communicatively connected to the control switch. The oil smoke monitoring module is used to obtain an oil smoke concentration signal of the range hood. The fixed end of the second push rod motor is fixed to the smoke collecting plate assembly, the moving end of the second push rod motor is fixed to the smoke inlet chamber assembly, and the second oil box is used to receive oil stains in the air duct of the bellows assembly. The control switch is used to execute the method according to any one of claims 1 to 7.

9. The range hood according to claim 8, characterized in that: The oil fume monitoring module includes an inlet decorative cover, an oil fume sensor, a fixing cover, a fixing seat, a connector, and a connecting pipe; Among them, the inlet decorative cover is provided with a plurality of hollow air inlet holes, the oil fume sensor is provided with an oil fume inlet and an oil fume outlet, the oil fume sensor is placed above the fixed seat, the oil fume inlet is inserted into the through hole set on the fixed seat, the oil fume outlet corresponds to the inner side of the air outlet nozzle on the fixed cover, the fixed cover is fixedly connected to the fixed seat, and the oil fume sensor is located between the fixed cover and the fixed seat; the connecting head is arranged in the bellows assembly; the connecting pipe connects the air outlet nozzle on the fixed cover and the air inlet nozzle on the connecting head.

10. The range hood according to claim 9, characterized in that: The oil smoke sensor is further provided with a first air inlet and a second air inlet, wherein the first air inlet and the second air inlet are respectively located at the left and right sides of the oil smoke sensor.

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