Method for adjusting a range hood and range hood

Abstract

The application provides a cooking fume extractor adjusting method and a cooking fume extractor. The method comprises the following steps: obtaining a cooking fume concentration signal of the cooking fume extractor; adjusting the working gear of the cooking fume extractor gradually based on the cooking fume concentration signal; obtaining a cooking fume concentration variation corresponding to the highest working gear; judging whether the cooking fume concentration variation meets a lifting trigger instruction; if the cooking fume concentration variation meets the lifting trigger instruction, determining a current cooking mode based on the cooking fume concentration variation; obtaining a target lifting mode corresponding to the current cooking mode; and adjusting the lifting height of a fume gathering plate assembly and a fume inlet cavity based on the target lifting mode. The application can automatically and flexibly adjust the lifting height of the fume gathering plate assembly and the fume inlet cavity assembly according to the cooking mode, so that the fume gathering plate assembly and the fume inlet cavity assembly can meet the current cooking mode.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a method for adjusting an extractor hood and the extractor hood. BACKGROUND

[0002] An extractor hood is a device used in the kitchen to remove oil fumes, steam and odors generated during cooking. Its main function is to suck oil fumes into the air duct system and discharge them outdoors, thereby keeping the kitchen air fresh.

[0003] With the development of technology, the function and design of the extractor hood are also constantly improving. In order to make the extractor hood more effectively capture oil fumes, reduce oil fume escape, and improve the effect of extracting oil fumes, the existing technology usually sets the extractor hood as a lifting extractor hood, that is, the height of the smoke inlet cavity and the smoke board in the extractor hood can be adjusted to make the smoke inlet cavity and the smoke board closer to the oil fume source.

[0004] However, the conventional lifting extractor hood is manually adjusted to a fixed set position, that is, only one set position can be adjusted, which limits the adjustment of the lifting extractor hood and is not flexible enough. SUMMARY

[0005] The present application provides a method for adjusting an extractor hood to solve the problem of manually adjusting the smoke inlet cavity and the smoke board to a fixed set position, which limits the adjustment of the lifting extractor hood and is not flexible enough.

[0006] In a first aspect, the present application provides a method for adjusting an extractor hood, the extractor hood device comprising a smoke inlet cavity assembly, a smoke board assembly, a wind box assembly and a hood main body, the hood main body being mounted on the wind box assembly and hanging on the wall, the smoke board assembly and the smoke inlet cavity assembly being slidingly connected to the wind box assembly; the smoke inlet cavity assembly is slidingly connected to the smoke board assembly.

[0007] The method comprises:

[0008] Obtaining an oil fume concentration signal of the extractor hood;

[0009] Adjusting the working gear of the extractor hood based on the oil fume concentration signal;

[0010] Obtaining the oil fume concentration change amount corresponding to the highest gear;

[0011] Determining whether the oil fume concentration change amount meets the lifting trigger instruction;

[0012] If the oil fume concentration change amount meets the lifting trigger instruction, determining the current cooking mode based on the oil fume concentration change amount;

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

[0014] Adjusting the lifting height of the smoke collecting plate assembly and the smoke inlet cavity based on the target lifting mode.

[0015] Further, the wind box 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 wind box 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 cavity assembly.

[0016] Adjusting the lifting height of the smoke collecting plate assembly and the smoke inlet cavity based on the target lifting mode, comprising:

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

[0018] Driving the smoke collecting plate assembly, the second push rod motor, and the smoke inlet cavity assembly to move downward from a default position to the first preset position synchronously by using the first push rod motor;

[0019] Driving the smoke inlet cavity assembly to move downward from the first preset position to the second preset position by using the second push rod motor.

[0020] Further, based on the current cooking mode, the corresponding target lifting mode is obtained, comprising:

[0021] 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.

[0022] Further, based on the oil fume concentration change amount, the current cooking mode is determined, comprising:

[0023] If the oil fume concentration change amount is less than or equal to a first threshold value, it is determined that the current cooking mode is a first cooking mode;

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

[0025] If the oil fume concentration change amount is greater than the second threshold value, it is determined that the current cooking mode is a third cooking mode.

[0026] Further, after adjusting the working gear of the range hood successively based on the oil fume concentration signal, the method further comprises:

[0027] Successively obtaining the oil fume concentration change amount corresponding to the adjusted working gear;

[0028] If the oil fume concentration change 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 working gear of the range hood is stopped from being adjusted, and the middle gear is taken as the final working gear of the range hood.

[0029] A further technical solution is that the wind box assembly comprises 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 based on the oil fume concentration signal, comprising:

[0030] The speed of the third motor is adjusted based on the oil fume concentration signal;

[0031] Based on the multiple 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 gathering plate assembly and the smoke inlet cavity based on the target lifting mode, the method further comprises:

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

[0034] The smoke gathering plate assembly, the second push rod motor and the smoke inlet cavity assembly are driven by the first push rod motor to move upward to the initial position synchronously;

[0035] The smoke inlet cavity assembly is driven by the second push rod motor to move upward until the smoke inlet cavity assembly is completely hidden in the smoke gathering plate assembly.

[0036] In a second aspect, the application provides a range hood device, which comprises a smoke inlet cavity assembly, a smoke gathering plate assembly, a wind box assembly and a range hood main body, wherein the range hood main body is installed on the wind box assembly and hung on a wall surface;

[0037] The smoke inlet cavity assembly comprises a smoke inlet and a first oil box, and the first oil box is used for containing condensate oil in the smoke inlet cavity assembly.

[0038] The wind box assembly is provided with a first push rod motor, the fixed end of the first push rod motor is fixed to the wind box assembly, and the moving end of the first push rod motor is fixed to the smoke gathering plate assembly.

[0039] The smoke gathering plate assembly comprises an oil fume monitoring module, a second oil box, a control switch and a second push rod motor, the oil fume monitoring module and the control switch are communicatively connected, the oil fume monitoring module is used for obtaining an oil fume concentration signal of the range hood, the fixed end of the second push rod motor is fixed to the smoke gathering plate assembly, the moving end of the second push rod motor is fixed to the smoke inlet cavity assembly, and the second oil box is used for containing oil in the air duct of the wind box assembly.

[0040] The control switch is used for executing the method of any one of the above.

[0041] A further technical solution is that the oil fume monitoring module comprises an inlet decorative cover, an oil fume sensor, a fixing cover, a fixing seat, a connecting head, and a connecting pipe.

[0042] 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 arranged above the fixing seat, the oil fume inlet is inserted into a through hole arranged on the fixing seat, the oil fume outlet is correspondingly matched with the inner side of an air outlet nozzle on the fixing cover, the fixing cover is fixedly connected with the fixing seat, and the oil fume sensor is located between the fixing cover and the fixing seat; the connecting head is arranged in the bellows assembly; and the connecting pipe connects the air outlet nozzle on the fixing cover and an 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 side and the right side of the oil fume sensor.

[0044] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art: the cooking mode is determined based on the oil fume concentration change amount, and the corresponding target lifting mode is obtained based on the current cooking mode, that is, the lifting height of the smoke collection plate assembly and the smoke inlet cavity assembly can be automatically and flexibly adjusted according to the cooking mode, so that the smoke collection plate assembly and the smoke inlet cavity assembly conform to the current cooking mode, thereby improving the problem that the existing lifting range hood is manually operated to adjust the smoke inlet cavity and the smoke collection plate to a fixed set position, that is, only one set position can be lifted, resulting in that the adjustment of the lifting range hood is relatively limited and not flexible enough. BRIEF DESCRIPTION OF DRAWINGS

[0045] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present application and, together with the specification, serve to explain the principles of the application.

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows: obviously, other drawings can also be obtained by those skilled in the art without creative labor under the premise of these drawings.

[0047] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings, and these exemplary illustrations do not constitute a limitation on the embodiments, elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified, and the drawings do not constitute a proportional limitation.

[0048] Figure 1 A perspective view of the range hood in the off state is provided for the embodiments of the present application.

[0049] Figure 2A perspective view of the range hood in an open state according to an embodiment of the present application;

[0050] Figure 3 A three-dimensional perspective view of the bellows assembly according to an embodiment of the present application;

[0051] Figure 4 A three-dimensional perspective view of the range hood in an open state according to an embodiment of the present application; Figure 2 A three-dimensional perspective view of the range hood in an open state according to an embodiment of the present application;

[0052] Figure 5 A three-dimensional perspective view of the range hood in an open state according to an embodiment of the present application; Figure 2 An assembly schematic view of the smoke inlet cavity assembly and the rear plate assembly of the range hood in an open state according to an embodiment of the present application;

[0053] Figure 6 A three-dimensional perspective view of the range hood in an open state according to an embodiment of the present application; Figure 2 A three-dimensional perspective view of the range hood in an open state according to an embodiment of the present application;

[0054] Figure 7 A three-dimensional perspective view of the range hood in an open state according to an embodiment of the present application; Figure 2 A three-dimensional perspective view of the range hood in an open state according to an embodiment of the present application;

[0055] Figure 8 A three-dimensional perspective view of the range hood in an open state according to an embodiment of the present application; Figure 7 An enlarged schematic view of a partial A of the range hood in an open state according to an embodiment of the present application;

[0056] Figure 9 A three-dimensional perspective view of the range hood in an open state according to an embodiment of the present application; Figure 2 A three-dimensional perspective view of the range hood in an open state according to an embodiment of the present application;

[0057] Figure 10 A three-dimensional perspective view of the range hood in an open state according to an embodiment of the present application; Figure 1 A front structure sectional view of the range hood in an open state according to an embodiment of the present application;

[0058] Figure 11 An enlarged schematic view of a partial B of the range hood in an open state according to an embodiment of the present application; Figure 10

[0059] An oil fume detection control flowchart according to an embodiment of the present application; Figure 12

[0060] A flowchart of a first embodiment according to the present application; Figure 13

[0061] A schematic view of a range hood control device according to the present application. Figure 14 BRIEF DESCRIPTION OF THE DRAWINGS

[0062]

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

[0064] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will be combined with the drawings in the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0065] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components 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, reference numerals and / or letters can be repeated in different examples in the present application. Such repetition is for the purpose of simplification and clarity, and does not in itself indicate a relationship between the various embodiments and / or settings being discussed.

[0066] The range hood is a device used in the kitchen to remove oil fumes, steam, and odors generated during the cooking process. Its main function is to suck oil fumes into the air duct system and discharge them outdoors, thereby keeping the kitchen air fresh.

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

[0068] However, the conventional lifting range hood adjusts the smoke inlet cavity and the smoke plate to a set fixed position by manual operation, that is, only one set position lifting can be completed, which leads to limited adjustment of the lifting range hood and is not flexible enough.

[0069] In order to solve the technical problem that the existing technology adjusts the smoke inlet cavity and the smoke plate to a set fixed position by manual operation, that is, only one set position lifting can be completed, which leads to limited adjustment of the lifting range hood and is not flexible enough, the present application provides a range hood and a range hood adjustment method, which can automatically adjust the lifting position of the smoke inlet cavity and the smoke plate according to the cooking scene, and improve the flexibility of the adjustment of the lifting range hood.

[0070] As shown in Figures 1-11 The range hood provided by the present application includes a smoke inlet cavity assembly 1, a smoke plate assembly 2 and a wind box assembly 3.

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

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

[0073] The smoke plate assembly 2 comprises a lamp plate assembly 201, a water tank flap 202, an oil fume monitoring module 203, a water tank assembly 204, a shell back plate assembly 205, a lower crossbeam 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 fixing shaft, a first push rod fixing seat 220, a control switch 221, a first connecting inner guide rail 2302, and the like. The shell back plate assembly 205 is provided with a third connecting outer guide rail 1201, an air duct rear side sealing gasket 2051 and a second push rod motor 2052 on the front surface, and is further provided with a roller 2053 on the back surface.

[0074] The guide rail fixing plate 207, the 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 shell side plate 208, the guide rail fixing plate 207 and the first connecting inner guide rail 2302 constitute a side plate assembly, and when the air bellow assembly 3 is assembled, 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 with the front beam 209 and the lower crossbeam 206 respectively, the second oil box 211 is installed in cooperation with the second oil box fixing seat 213 and is arranged at the tail of the lower crossbeam 206, and the water tank assembly 204 is installed in cooperation with the water tank fixing seat 214.

[0075] The air bellow assembly 3 can comprise a semi-sealed air bellow composed of an air bellow surrounding plate 304, an air bellow top plate 302, an air bellow back plate 303, an air bellow bottom plate 305, an air bellow reinforcing plate 306 and a connecting crossbeam 3047, an air duct module 301 composed of a volute, an impeller, a wind guide ring, a motor, a nut and the like is installed in the semi-sealed air bellow, a first push rod motor 3201 for providing a power source for the smoke plate assembly 2 is arranged, a decorative surrounding plate 309 is installed on the front surface of the air bellow surrounding plate, the air bellow reinforcing plate 306 is fixed on the side surface of the air bellow surrounding plate 304 and connected with the air duct surrounding plate 307, a cleaning assembly 311 is installed on the inner side of the air bellow reinforcing plate 306, the first connecting outer guide rail 2301 is installed on the outer side of the air bellow reinforcing plate 306 and matched with the inner guide rail on the smoke plate assembly 2, the air duct surrounding plate 307 is connected with the air bellow surrounding plate 304 and the air bellow bottom plate 305, the air duct surrounding plate 307 is internally provided with a guide rail fixing side plate 308 and a second connecting outer guide rail 1301, the air duct surrounding plate 307 is externally provided with a U-shaped sealing gasket 310 and internally provided with a strip-shaped sealing gasket 312,

[0076] The back part of the air bellow assembly 3 is provided with a hanging buckle, so that the main body of the smoke machine can be hung on the wall and kept in a fixed state.

[0077] When the range hood is in operation, the smoke inlet assembly 1 and the smoke gathering plate assembly 2 will be lowered to a specific position in turn, so that the lamp plate assembly 201 and the smoke inlet 101 are in a relatively fixed position; the oil fume monitoring module 203 can monitor the change of oil fume concentration in the cooking process in real time, and automatically adjust the smoke inlet assembly and the smoke gathering plate assembly to another specific position according to the change, so as to match the current cooking mode and make the machine in the optimal state of oil fume suction and exhaust effect; when the range hood is off, the smoke gathering plate assembly 2 and the smoke inlet assembly 1 can be upwardly retracted to a set position, the smoke inlet assembly 1 is completely retracted in the smoke gathering plate assembly 2, the bottom is flush with the bottom of the lamp plate assembly 201, and the bottom of the range hood can be flush with the lower plane of the top cabinet during installation, that is, the whole machine is completely hidden in the top cabinet.

[0078] The oil fume monitoring module 203 is configured to obtain an oil fume concentration signal of the range hood, the first oil box 102 is configured to contain the condensed oil dirt in the smoke inlet assembly 1, the second oil box 211 is configured to contain the oil dirt in the air duct of the air box assembly 3, and the control switch 221 is configured to execute the adjustment method mentioned in the following embodiments.

[0079] Because the oil fume generated in the cooking process contains a large amount of oil, particulate matter and other impurities. After these substances enter the inside of the oil fume sensor, they will adhere to the sensitive elements of the oil fume sensor, causing the performance of the oil fume sensor to decline, thereby affecting the service life of the oil fume sensor. And the particulate matter and oil in the oil fume are easy to block the air flow channel of the oil fume sensor, affecting the normal work of the oil fume sensor, causing the oil fume sensor to be unable to accurately detect the oil fume concentration, and 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 can also be arranged in the range hood, which will be described in detail below.

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

[0082] The front end of the inlet decorative cover 2031 is provided with a plurality of 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 in a matched mode; the oil fume sensor 2033 is an electrical element capable of detecting the concentration of oil fume, and is provided with an oil fume inlet and an oil fume outlet. The oil fume sensor 2033 is arranged above the fixing seat 2032, the oil fume inlet thereof is just inserted into the through hole arranged on the fixing seat 2032, the oil fume outlet is matched with the inner side of the air outlet nozzle on the fixing cover 2034, and a sealing ring is clamped between the two openings to ensure the sealing effect. The fixing cover 2034 is fixed with the fixing seat 2032 through the buckle structure arranged thereon, and the oil fume sensor 2033 is pressed in the fixing cover 2034. The upper end of the connecting head is inserted into the hole arranged on the bottom plate 305 of the wind box through the buckle structure, and the matching surface is sealed by silica gel. 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, so as to form a connecting channel for the circulation of part of the oil fume, that is, an oil fume detection channel.

[0083] During the cooking process, the third motor 3330 in the air duct module 301 drives the impeller to rotate, so that a strong negative pressure area is formed in the wind box, that is, the upper end of the connecting head has a certain negative pressure, and then part of the oil fume enters the oil fume sensor 2033 through the small holes on the inlet decorative cover 2031, and then enters the wind box through the fixing 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 use a small amount of cooking oil fume instead of real-time oil fume concentration, so as to prevent a large amount of oil fume in the cooking process from entering the oil fume sensor, and further improve 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 arranged on the left side and the right side of the oil fume sensor 2033.

[0086] The left and right sides of the fixing cover 2034 can be provided with air avoidance grooves, so that the first air inlet and the second air inlet on the oil fume sensor 2033 are in communication 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, so as to avoid the oil fume sensor being wrapped by oil fume, and further improve the accuracy of the oil fume sensor detection.

[0088] Based on the above-mentioned range hood, the application further provides a method for adjusting the range hood, which is described in detail in the above-mentioned embodiments. Figure 12 and 13 The first embodiment of the method for adjusting the range hood provided by the application comprises the following steps:

[0089] Step 110: Obtain an oil fume concentration signal of the range hood.

[0090] In this way, the oil fume sensor can be used to detect the oil fume concentration in real time, and different oil fume concentration signals can be transmitted to the control switch according to different oil fume concentrations, so that the control switch can obtain the oil fume concentration signal of the range hood.

[0091] Step 120: Adjust the working gear of the range hood successively based on the oil fume concentration signal.

[0092] For example, the range hood can include working gear 1, working gear 2, working gear 3, and working gear 4, and the gears of the working gear 1, the working gear 2, the working gear 3, and the working gear 4 are arranged in ascending order.

[0093] After receiving the oil fume concentration signal, the working gear of the range hood can be adjusted from the working gear 1 to the working gear 2, and then from the working gear 2 to the working gear 3, so as to adjust the working gear of the range hood successively.

[0094] Step 130: Obtain an oil fume concentration change amount corresponding to the highest working gear.

[0095] Step 140: Determine whether the oil fume concentration change amount meets a lifting trigger instruction.

[0096] Step 150: If the oil fume concentration change amount meets the lifting trigger instruction, determine the current cooking mode based on the oil fume concentration change amount.

[0097] For example, if the oil fume concentration change amount exceeds a preset range, it can be considered that the oil fume concentration change amount meets the lifting trigger instruction.

[0098] For steps 130 and 140, that is, when the range hood is adjusted to the highest working gear, the oil fume concentration change amount is still high, and the lifting mode needs to be adjusted to further optimize the range hood effect.

[0099] Step 160: Obtain a target lifting mode corresponding to the current cooking mode.

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

[0101] Step 170: Adjust the lifting height of the smoke gathering plate assembly and the smoke inlet cavity based on the target lifting mode.

[0102] For example, if the target lifting mode already contains the lifting height value of the smoke collecting plate assembly and the smoke inlet cavity, the lifting height of the smoke collecting plate assembly and the smoke inlet cavity can be directly adjusted according to the lifting height value in the target lifting mode.

[0103] In this way, the current cooking mode is determined based on the oil fume concentration change amount, and the corresponding target lifting mode is obtained based on the current cooking mode. That is, the lifting height of the smoke collecting plate assembly and the smoke inlet cavity assembly can be automatically and flexibly adjusted according to the cooking mode, so that the smoke collecting plate assembly and the smoke inlet cavity assembly conform to the current cooking mode, thereby improving the problem that the existing lifting range hood is adjusted to a fixed set position by manual operation, that is, the lifting can only be completed at one set position, resulting in that the adjustment of the lifting range hood is relatively limited and not flexible.

[0104] Although the smoke collecting plate assembly and the smoke inlet assembly move up and down together, which can solve the problem of poor smoke collecting effect to some extent, the smoke inlet cannot move up and down alone, so that the oil suction port cannot be close to the smoke source better. Therefore, the motor for controlling the movement of the smoke collecting plate assembly and the smoke inlet assembly is arranged on the range hood, which can be specifically referred to the second embodiment below.

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

[0106] Step 210: obtaining an oil fume concentration signal of the range hood.

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

[0108] Step 230: obtaining an oil fume concentration change amount corresponding to the highest gear.

[0109] Step 240: determining whether the oil fume concentration change amount meets a lifting trigger instruction.

[0110] Step 250: if the oil fume concentration change amount meets the lifting trigger instruction, determining the current cooking mode based on the oil fume concentration change amount.

[0111] Step 260: obtaining a corresponding target lifting mode based on the current cooking mode.

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

[0113] Step 280: driving the smoke collecting plate assembly by the first push rod motor, driving the smoke inlet cavity assembly by the second push rod motor, and synchronously moving the smoke collecting plate assembly and the smoke inlet cavity assembly from a default position to the first preset position.

[0114] Step 290: driving the smoke inlet cavity assembly downward from the first preset position to the second preset position by the second push rod motor.

[0115] Thus, after driving the smoke gathering plate assembly, the second push rod motor and the smoke inlet cavity assembly downward from the default position to the first preset position by the first push rod motor, the smoke inlet cavity assembly is driven downward from the first preset position to the second preset position by the second push rod motor, so that the smoke inlet cavity assembly can be lifted and lowered alone, thereby better approaching the smoke source.

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

[0117] Step 310: obtaining the oil fume concentration signal of the range hood.

[0118] Step 320: adjusting the working gear of the range hood based on the oil fume concentration signal.

[0119] Wherein, the working gear of the range hood can be changed by adjusting the rotating speed of the motor.

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

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

[0122] Step 330: obtaining the oil fume concentration change amount corresponding to the highest working gear.

[0123] Step 340: judging whether the oil fume concentration change amount meets the lifting and lowering trigger instruction.

[0124] Step 350: if the oil fume concentration change amount meets the lifting and lowering trigger instruction, determining the current cooking mode based on the oil fume concentration change amount.

[0125] In some embodiments, step 350 can comprise the following:

[0126] 1) if the oil fume concentration change amount is less than or equal to the first threshold value, determining that the current cooking mode is the first cooking mode.

[0127] 2) if the oil fume concentration change amount 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.

[0128] 3) if the oil fume concentration change amount is greater than the second threshold value, determining that the current cooking mode is the third cooking mode.

[0129] The cooking mode can include a frying mode, a stir-frying mode, a steaming and stewing mode, and the like.

[0130] Step 360: Based on the current cooking mode, find 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, the frying mode corresponds to lifting mode 1; the stir-frying mode corresponds to lifting mode 2; the steaming and stewing mode corresponds to lifting mode 3, and the like.

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

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

[0135] Step 410: Obtain the oil fume concentration signal of the range hood.

[0136] Step 420: Adjust the working gear of the range hood successively based on the oil fume concentration signal.

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

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

[0139] That is, when the working gear of the range hood is adjusted to the intermediate gear, the oil fume concentration change is small, and most of the oil fume can be sucked into the air duct module of the range hood and discharged outdoors, that is, the oil fume concentration has been effectively controlled, and there is no need to further adjust the working gear.

[0140] Since the higher working gear has a higher speed and relatively higher noise, and the higher working gear consumes more energy, when the oil fume concentration has been effectively controlled, the noise and energy consumption generated by the high-speed operation can be reduced by keeping the intermediate gear.

[0141] In addition, since the oil fume concentration can be effectively controlled by adjusting the working gear, it is not necessary to adjust the lifting height of the smoke collecting plate assembly and the smoke inlet cavity assembly, thereby reducing the number of movements of the mechanical components such as the smoke collecting plate assembly and the smoke inlet cavity assembly, reducing wear and failure rate, and prolonging the service life of the smoke collecting plate assembly and the smoke inlet cavity assembly.

[0142] In some embodiments, in order to reduce the area occupied by the range hood when not in use, the smoke inlet cavity assembly can be hidden in the smoke board assembly. For details, see the following steps:

[0143] Step 510: If a closing instruction of the range hood is received.

[0144] Step 510: The first push rod motor drives the smoke board assembly, the second push rod motor and the smoke inlet cavity assembly to move upward synchronously to the initial position.

[0145] Step 510: The second push rod motor drives the smoke inlet cavity assembly to move upward until the smoke inlet cavity assembly is completely hidden in the smoke board assembly.

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

[0147] Similarly, during the starting stage of the range hood, the first push rod motor can be used to drive the smoke board assembly and the second push rod motor and the smoke inlet cavity assembly to move downward together, and stop after reaching the set position. At the same time, the second push rod motor drives the smoke inlet cavity assembly to move downward, and stops after reaching the set position.

[0148] As shown in FIG. Figure 14 The range hood control device provided by the embodiment of the present application includes 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 complete mutual communication through the communication bus 114,

[0149] The memory 113 is used to store a computer program.

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

[0151] Obtaining an oil fume concentration signal of the range hood;

[0152] Adjusting the working gear of the range hood based on the oil fume concentration signal;

[0153] Obtaining an oil fume concentration change amount corresponding to the highest gear;

[0154] Judging whether the oil fume concentration change amount meets a lifting trigger instruction;

[0155] If the oil fume concentration change amount meets the lifting trigger instruction, the current cooking mode is determined based on the oil fume concentration change amount;

[0156] Based on the current cooking mode, a corresponding target lifting mode is obtained;

[0157] Based on the target lifting mode, the lifting height of the smoke gathering plate assembly and the smoke inlet cavity is adjusted.

[0158] The embodiments of the present application also provide a computer readable storage medium, which stores a computer program. The computer program is executed by a processor to implement the steps of the XX method provided by any one of the preceding method embodiments.

[0159] The device embodiments described above are only schematic, wherein the units illustrated as separate components can or can not be physically separate, and the components illustrated as units can or can not be physical units, i.e., can be located in one place or distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the embodiments.

[0160] Through the above description of the embodiments, those skilled in the art can clearly understand that the embodiments can be implemented by means of software plus a general hardware platform, and of course can also be implemented by hardware. Based on such understanding, the above technical solutions can be embodied in the form of a software product, which can be stored in a computer readable storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, etc., and includes a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods of the embodiments or some parts of the embodiments.

[0161] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has", "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically indicated as such. It is also to be understood that additional or alternative steps can be employed.

[0162] The foregoing detailed description of the application has been presented for purposes of illustration and description. Various modifications and changes can be made to these embodiments without departing from the spirit and scope of the application. It is intended that the scope of the application should not be limited by the particular representative embodiments described above.

Claims

1. A method of adjusting a range hood, characterized by, The range hood comprises an air inlet cavity assembly, a smoke gathering plate assembly, a wind box assembly and a range hood main body, the range hood main body is installed on the wind box assembly and hung on a wall surface, the smoke gathering plate assembly and the air inlet cavity assembly are slidably connected to the wind box assembly, the air inlet cavity assembly is slidably connected to the smoke gathering plate assembly, and the smoke gathering plate assembly and the air inlet cavity assembly can realize lifting movement. The method comprises: obtaining an oil fume concentration signal of the range hood; adjusting the working gear of the range hood based on the oil fume concentration signal; obtaining an oil fume concentration change amount corresponding to the highest gear of the working gear; judging whether the oil fume concentration change amount meets a lifting trigger instruction; if the oil fume concentration change amount meets the lifting trigger instruction, determining a current cooking mode based on the oil fume concentration change amount; obtaining a target lifting mode corresponding to the current cooking mode based on the current cooking mode; adjusting the lifting height of the smoke gathering plate assembly and the air inlet cavity assembly based on the target lifting mode.

2. The method of adjusting a range hood according to claim 1, wherein, The wind box assembly is provided with a first push rod motor, the smoke gathering plate assembly is provided with a second push rod motor, the fixed end of the first push rod motor is fixed to the wind box assembly, the moving end of the first push rod motor is fixed to the smoke gathering plate assembly, the fixed end of the second push rod motor is fixed to the smoke gathering plate assembly, and the moving end of the second push rod motor is fixed to the air inlet cavity assembly. The adjusting of the lifting height of the smoke gathering plate assembly and the air inlet cavity assembly based on the target lifting mode comprises: obtaining a first preset position and a second preset position based on the target lifting mode; synchronously moving the smoke gathering plate assembly, the second push rod motor and the air inlet cavity assembly from a default position to the first preset position downward by using the first push rod motor; moving the air inlet cavity assembly from the first preset position to the second preset position downward by using the second push rod motor.

3. The method of adjusting a range hood according to claim 1, wherein, The obtaining of the target lifting mode corresponding to the current cooking mode based on the current cooking mode comprises: looking up the target lifting mode corresponding to the current cooking mode from a preset cooking mode-optimal lifting mode data table based on the current cooking mode.

4. The method of adjusting a range hood according to claim 1, wherein, The determination of the current cooking mode based on the oil fume concentration change amount comprises: if the oil fume concentration change amount is less than or equal to a first threshold value, determining that the current cooking mode is a first cooking mode; if the oil fume concentration change amount is greater than the first threshold value and less than or equal to a second threshold value, determining that the current cooking mode is a second cooking mode; if the oil fume concentration change amount is greater than the second threshold value, determining that the current cooking mode is a third cooking mode.

5. The method of adjusting a range hood according to claim 1, wherein, After the adjusting of the working gear of the range hood based on the oil fume concentration signal, the method further comprises: obtaining an oil fume concentration change amount corresponding to the adjusted working gear; if the oil fume concentration change amount corresponding to an intermediate gear does not meet the lifting trigger instruction when the working gear of the range hood is adjusted to the intermediate gear, stopping the adjustment of the working gear of the range hood and taking the intermediate gear as the final working gear of the range hood.

6. The method of adjusting a range hood according to claim 1, wherein, The wind box assembly comprises a third motor and a wind channel module, the third motor is located in the wind channel module, the working gear of the range hood is adjusted based on the oil fume concentration signal, comprising: adjusting the rotating speed of the third motor based on the oil fume concentration signal; obtaining multiple working gears of the range hood based on multiple rotating speeds of the third motor.

7. The method of adjusting a range hood according to claim 2, wherein, After adjusting the lifting height of the smoke plate assembly and the smoke inlet cavity based on the target lifting mode, the method further comprises: if receiving the closing instruction of the range hood; using the first push rod motor to drive the smoke plate assembly, the second push rod motor and the smoke inlet cavity assembly to move upward to the initial position synchronously; using the second push rod motor to drive the smoke inlet cavity assembly to move upward until the smoke inlet cavity assembly is completely hidden in the smoke plate assembly.

8. A range hood characterized by, The range hood comprises a smoke inlet cavity assembly, a smoke plate assembly, a wind box assembly and a range hood main body, the range hood main body is installed on the wind box assembly and hung on the wall; wherein the smoke inlet cavity assembly comprises a smoke inlet and a first oil box, the first oil box is used for containing the condensed oil in the smoke inlet cavity assembly; the wind box assembly is provided with a first push rod motor, the fixed end of the first push rod motor is fixed to the wind box assembly, and the moving end of the first push rod motor is fixed to the smoke plate assembly; the smoke plate assembly comprises an oil fume monitoring module, a second oil box, a control switch and a second push rod motor, the oil fume monitoring module and the control switch are communicatively connected, the oil fume monitoring module is used for obtaining the oil fume concentration signal of the range hood, the fixed end of the second push rod motor is fixed to the smoke plate assembly, the moving end of the second push rod motor is fixed to the smoke inlet cavity assembly, and the second oil box is used for containing the oil in the wind channel of the wind box assembly; wherein the oil fume monitoring module comprises an inlet decoration cover, an oil fume sensor, a fixed cover, a fixed seat, a connecting head, and a connecting pipe; wherein the inlet decoration 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 arranged above the fixed seat, the oil fume inlet is inserted into the through hole arranged on the fixed seat, the oil fume outlet is correspondingly matched with the inner side of the air outlet nozzle on the fixed cover, the fixed cover is fixedly connected with 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 wind box assembly; and the connecting pipe connects the air outlet nozzle on the fixed cover and the air inlet nozzle on the connecting head; the oil fume sensor is further provided with a first air inlet and a second air inlet, the first air inlet and the second air inlet are respectively located on the left and right sides of the oil fume sensor; the range hood is used for executing the method according to any one of claims 1-7.

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