Range hood and control method and device thereof

Abstract

The application provides an oil fume exhaust machine and a control method and device thereof, and relates to the technical field of intelligent control. The method is applied to the oil fume exhaust machine, and the oil fume exhaust machine is provided with a muffler. The muffler is arranged between a main box and a smoke collecting cavity of the oil fume exhaust machine. The method comprises the following steps: in response to a starting operation acting on the oil fume exhaust machine, the smoke collecting cavity of the oil fume exhaust machine is controlled to drop to a preset position; a working noise parameter of the oil fume exhaust machine is collected; adjustment parameters of the muffler are determined based on the working noise parameter; and the cavity depth of the muffler is adjusted according to the adjustment parameters, so that the cavity depth of the muffler is matched with the working noise parameter. The oil fume exhaust machine and the control method and device thereof provided by the application can realize the adjustment of the height of the smoke suction port of the smoke collecting cavity, and the cavity depth of the muffler is adjusted to achieve the optimal noise reduction effect, thereby effectively improving the use experience of the user.

Description

Technical Field

[0001] This invention relates to the field of intelligent control technology, and in particular to a range hood and its control method and device. Background Technology

[0002] Range hoods, also known as cooking hoods or range exhaust fans, are an indispensable appliance in modern family kitchens. While their ability to remove cooking fumes is increasing, the noise they generate is also becoming more intense, which not only affects the user's cooking experience but can even cause harm to physical and mental health.

[0003] Looking at the operating noise spectrum, the mid-to-low frequency (below 1000Hz) accounts for the largest proportion at all operating speeds of the range hood. And the commonly used passive noise reduction methods such as sound-absorbing cotton are ineffective against mid-to-low frequency sound waves.

[0004] Therefore, as a reactive noise reduction method, expansion mufflers have been widely used in automobiles, home appliances and other fields. By designing their expansion ratio, noise reduction effects in the low-frequency range can be achieved in a limited space.

[0005] However, many range hoods that currently use the principle of silencing chambers are fundamentally different from the principle of silencing chambers. They do not form a true expansion-contraction structure, resulting in poor noise reduction and difficulty in improving the user experience. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a range hood and its control method and apparatus to alleviate the above-mentioned technical problems.

[0007] In a first aspect, embodiments of the present invention provide a control method for a range hood, the range hood being equipped with a silencer disposed between the main unit housing and the smoke collection chamber of the range hood; the method includes: responding to a start-up operation acting on the range hood, controlling the smoke collection chamber of the range hood to descend to a preset position; collecting operating noise parameters of the range hood; determining adjustment parameters of the silencer based on the operating noise parameters; and adjusting the cavity depth of the silencer according to the adjustment parameters so that the cavity depth of the silencer matches the operating noise parameters.

[0008] In conjunction with the first aspect, the present invention provides a first possible implementation of the first aspect, wherein the range hood is equipped with a first lifting mechanism, the first lifting mechanism being used to adjust the relative position of the muffler and the main unit box to adjust the lifting position of the smoke collection chamber; the step of controlling the smoke collection chamber of the range hood to descend to a preset position includes: activating the first lifting mechanism, and controlling the smoke collection chamber to descend to the preset position through the first lifting mechanism.

[0009] With reference to the first aspect, the second possible implementation of the first aspect is provided in the embodiments of the present application, and the step of determining the adjustment parameter of the muffler based on the working noise parameter comprises: obtaining a pre-configured adjustment relationship table, wherein the adjustment relationship table is used to record the corresponding relationship between the noise parameter and the adjustment parameter; the adjustment parameter is used to represent the depth of the cavity of the muffler; and the adjustment relationship table is used to find the adjustment parameter corresponding to the working noise parameter.

[0010] With reference to the first aspect, the third possible implementation of the first aspect is provided in the embodiments of the present application, and the muffler comprises a muffler body, a first muffler channel, and a second lifting mechanism corresponding to the first muffler channel; the first muffler channel is movably nested in the interior of the muffler body to form the cavity of the muffler; and the step of adjusting the depth of the cavity of the muffler according to the adjustment parameter comprises: starting the second lifting mechanism, controlling the movement of the first muffler channel through the second lifting mechanism, adjusting the relative position between the first muffler channel and the muffler body, and matching the depth of the cavity with the adjustment parameter.

[0011] With reference to the first aspect, the fourth possible implementation of the first aspect is provided in the embodiments of the present application, and the method further comprises: in response to a shutdown operation of the range hood, controlling the cavity of the muffler to retract to a preset initial depth; and controlling the main box of the range hood to retract to a preset initial length, so that the smoke collecting cavity retracts to an initial position.

[0012] The second aspect, the embodiments of the present application further provide a control device of a range hood, wherein the range hood is configured with a muffler, and the muffler is arranged between the main box of the range hood and the smoke collecting cavity; the device comprises: a response module, configured to control the smoke collecting cavity of the range hood to drop to a preset position in response to a start operation of the range hood; a collection module, configured to collect the working noise parameter of the range hood; a determination module, configured to determine the adjustment parameter of the muffler based on the working noise parameter; and a control module, configured to adjust the depth of the cavity of the muffler according to the adjustment parameter, so that the depth of the cavity of the muffler matches the working noise parameter.

[0013] In a third aspect, the embodiments of the present application further provide an extractor hood, which comprises a main cabinet, a muffler, and a smoke collecting cavity; the muffler is arranged between the main cabinet and the smoke collecting cavity; the main cabinet is connected with the muffler through a first lifting mechanism, and the cabinet body of the main cabinet is nested with the muffler; the muffler is fixedly connected with the smoke collecting cavity; the first lifting mechanism is used for adjusting the relative position of the muffler and the main cabinet, so as to adjust the lifting position of the smoke collecting cavity; wherein the muffler comprises a muffler body, a first muffler channel, and a second lifting mechanism corresponding to the first muffler channel; the first muffler channel is movably nested in the interior of the muffler body, and the cavity space surrounded by the first muffler channel and the muffler body constitutes a cavity of the muffler; the second lifting mechanism is used for adjusting the relative position of the first muffler channel and the muffler body, so as to adjust the depth of the cavity.

[0014] In combination with the third aspect, the embodiments of the present application provide a first possible implementation manner of the third aspect, wherein the muffler further comprises a second muffler channel; the second muffler channel is fixedly arranged on one side of the muffler close to the smoke collecting cavity; the second muffler channel is matched with the smoke collecting cavity.

[0015] In combination with the third aspect, the embodiments of the present application provide a second possible implementation manner of the third aspect, wherein the first lifting mechanism comprises a first motor, a first lifting rod, and a first fixed column matched with the first lifting rod; wherein the first motor is fixed on the shell of the main cabinet; the first fixed column is fixed on the shell of the muffler; one end of the first lifting rod is connected with the first motor, and the other end is connected with the first fixed column; the first motor drives the first lifting rod to push the first fixed column to move, so as to adjust the relative position of the muffler and the main cabinet.

[0016] In combination with the third aspect, the embodiments of the present application provide a third possible implementation manner of the third aspect, wherein the second lifting mechanism comprises a second motor and a second lifting rod; wherein the second motor is fixed at a preset position of the muffler body; one end of the second lifting rod is connected with the second motor, and the other end is connected with a preset position of the first muffler channel; the second motor drives the second lifting rod to push the first muffler channel to move, so as to adjust the relative position of the first muffler channel and the muffler body.

[0017] The embodiments of the present application have the following beneficial effects:

[0018] The range hood, the control method and the device thereof provided by the embodiment of the present application can respond to the starting operation applied to the range hood, control the smoke collecting cavity of the range hood to drop to a preset position, then collect the working noise parameter of the range hood, determine the adjustment parameter of the silencer based on the working noise parameter, and then adjust the cavity depth of the silencer according to the adjustment parameter, so that the cavity depth of the silencer is matched with the working noise parameter, the height of the smoke collecting cavity suction port is adjusted, the cavity depth of the silencer is adjusted, the optimal noise reduction effect is achieved, and the use experience of the user is effectively improved.

[0019] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application will be realized and achieved by means of the structures particularly pointed out in the description and the claims.

[0020] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are specifically described below, and the accompanying drawings are described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 A schematic diagram of a whole range hood is provided for the embodiment of the present application.

[0023] Figure 2 An exploded view of a range hood is provided for the embodiment of the present application.

[0024] Figure 3 A schematic diagram of a range hood is provided for the embodiment of the present application.

[0025] Figure 4 A flowchart of a control method of a range hood is provided for the embodiment of the present application.

[0026] Figure 5 A curve diagram of an adjustment relationship is provided for the embodiment of the present application.

[0027] Figure 6 A schematic diagram of a control device of a range hood is provided for the embodiment of the present application.

[0028] Figure 7 A schematic diagram of an electronic device is provided for the embodiment of the present application.

[0029] Figure icon: 10 - main box; 20 - muffler; 30 - smoke collecting cavity; 201 - first motor; 202 - first lifting rod; 203 - first fixed column; 204 - motor base; 21 - muffler body; 22 - first muffler passage; 23 - second muffler passage; 300 - fan; 301 - second motor; 302 - second lifting rod; 303 - gear set. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] At present, many range hood using the principle of muffler cavity, its essence is quite different from the principle of muffler cavity, and does not form a real expansion-contraction structure, especially the lifting range hood, it is difficult to achieve the effect of adjusting the sound absorption frequency band by adjusting the length of the box.

[0032] Based on this, the range hood and its control method and device provided by the embodiments of the present application can effectively alleviate the above problems, and adjust the depth of the internal muffler cavity while adjusting the height of the smoke inlet of the smoke collecting cavity, to achieve the optimal noise reduction effect.

[0033] In order to facilitate the understanding of the present embodiment, first, a range hood disclosed by the embodiments of the present application will be described in detail.

[0034] In a possible implementation, the embodiments of the present application provide a range hood, which comprises a main box, a muffler, and a smoke collecting cavity; the muffler is arranged between the main box and the smoke collecting cavity; that is, the range hood provided by the embodiments of the present application is actually a lifting range hood with a muffler, which is arranged at the position of the lifting main box, i.e. the range hood air duct, to play the role of noise reduction and lifting position.

[0035] Specifically, the main box and the muffler are connected through a first lifting mechanism, and the box body of the main box and the muffler are nested; the muffler is fixedly connected with the smoke collecting cavity; the first lifting mechanism is used to adjust the relative position of the muffler and the main box, so as to adjust the lifting position of the smoke collecting cavity.

[0036] In actual use, the first lifting mechanism actually adjusts the position of the smoke collecting cavity, that is, when the range hood is not used, the smoke collecting cavity is retracted to the initial position by the first lifting mechanism, that is, the smoke collecting cavity is folded; when the range hood is used, the smoke collecting cavity is lowered to a position close to the cooking appliance by the first lifting mechanism to achieve good smoke suction effect.

[0037] Further, the above-mentioned muffler includes a muffler body, a first muffler channel, and a second lifting mechanism corresponding to the first muffler channel; the first muffler channel is movably nested in the interior of the muffler body, and the cavity space surrounded by the first muffler channel and the muffler body constitutes the cavity of the muffler; the cavity is used as a muffling cavity, and the second lifting mechanism is used to adjust the relative position of the first muffler channel and the muffler body to adjust the depth of the cavity and thus change the depth of the muffling cavity to match the frequency band of the working noise of the range hood, thereby achieving the effect of noise reduction.

[0038] In order to facilitate understanding, Figure 1 A schematic diagram of a range hood is shown, as Figure 1 It includes a main machine box 10, a muffler 20 and a smoke collecting cavity 30.

[0039] Further, in order to effectively adjust the relative position of the above-mentioned muffler and the main machine box, the above-mentioned first lifting mechanism is arranged on both sides of the main machine box, specifically, as Figure 1 The first lifting mechanism includes a first motor 201, a first lifting rod 202, and a first fixed column 203 matched with the first lifting rod 202; wherein the first motor 201 is fixed on the shell of the main machine box 10 through a motor base 204; the first fixed column 203 is fixed on the shell of the muffler 20; specifically, the first fixed column 203 is fixed on the shell of the muffler body, one end of the first lifting rod 202 is connected with the first motor 201, and the other end is connected with the first fixed column 203, so as to drive the first lifting rod 202 by the first motor 201 to push the first fixed column 203 to move, thereby driving the muffler body to move up and down relative to the main machine box 10, adjusting the relative position of the muffler 20 and the main machine box 10.

[0040] Among them, in order to facilitate the description, Figure 1 Only the first lifting mechanism on one side of the main machine box in the view range is shown, and in actual use, the above-mentioned first lifting rod can be arranged in the form of a screw rod, and the corresponding first fixed column can be in the form of a stud. By driving the screw rod to rotate by the first motor, the stud can be pushed to move up and down, and the stud is connected with the muffler body to achieve the lifting effect.

[0041] In addition, in order to prevent the interference caused by the connection of the first motor and the main box (such as the outlet of the internal muffler and the like), a convex surface can be arranged at the position of the main box, or a short head rivet, welding or the like can be used, and the specific arrangement can be set according to the actual use, and the embodiment of the application does not limit this.

[0042] Therefore, based on Figure 1 the overall view shown in the figure, the muffler arranged in the range hood of the embodiment of the application can be understood as a module with lifting and noise reduction functions, and is connected between the main box and the smoke collecting cavity of the range hood, and can be used with different main boxes and smoke collecting cavities, and has a wide range of applications.

[0043] Further, the muffler in the embodiment of the application further comprises a second muffler channel; the second muffler channel is fixedly arranged at the side of the muffler close to the smoke collecting cavity; and the second muffler channel is matched with the smoke collecting cavity, such as being replaced according to the structure of different smoke collecting cavities to achieve the required expansion ratio.

[0044] For the convenience of understanding, on the basis of Figure 1 , Figure 2 an exploded view of a range hood is shown, as Figure 2 shown, it is Figure 1 the corresponding overall exploded view, as Figure 2 shown, in addition to the structure shown in Figure 1 , Figure 2 the muffler further comprises a muffler body 21, a first muffler channel 22 and a second muffler channel 23.

[0045] Among them, the first muffler channel 22 is used as the upper channel of the entire muffler, which can be adjusted according to the structure of the actual range hood, and in the embodiment of the application, the upper channel is designed with double outlets to match the middle placement of the fan; the length of the muffler body 21 connected with the first lifting mechanism is the maximum lifting amount of the range hood of the embodiment of the application; the second muffler channel 23 as the lower channel of the entire muffler is also designed as a separate piece, which can be replaced according to the structure of different smoke collecting cavities, because according to the principle of muffler, the change of expansion ratio will affect the maximum sound absorption coefficient, therefore, the design of the second muffler channel 23 as a separate piece also facilitates the adjustment of the expansion ratio of the inlet according to the actual sound absorption performance requirements.

[0046] Further, the second lifting mechanism in the embodiment of the application comprises a second motor and a second lifting rod; wherein the second motor is fixed at a predetermined position of the muffler body; one end of the second lifting rod is connected with the second motor, and the other end is connected with a predetermined position of the first muffler channel; the second motor drives the second lifting rod to push the first muffler channel to move, thereby adjusting the relative position of the first muffler channel and the muffler body and changing the depth of the muffling cavity.

[0047] Specifically, in order to facilitate understanding, Figure 3 A schematic diagram of a front cross-section of an extractor hood is shown, specifically, Figure 3 A front cross-section of the main cabinet position of the extractor hood is shown, that is, including the main cabinet 10, and the first lifting mechanism on both sides, and part of the structure of the muffler 20, and, in addition Figure 1 And Figure 2 The structure shown, Figure 3 The fan 300 of the extractor hood is also shown in the middle, the second motor 301 and the second lifting rod 302 included in the second lifting mechanism, and the gear set 303 connecting the second motor 301 and the second lifting rod 302.

[0048] Specifically, as Figure 3 shown, in order to achieve the lifting effect of the extractor hood, Figure 3 The nesting order from outside to inside in the middle is the outer shell of the main cabinet 10 of the extractor hood, the muffler main body 21, and the first muffler passage 22.

[0049] In actual use, in order to achieve the sound attenuation effect of the first muffler passage 22, the second motor 301 and the gear set 303 of the second lifting mechanism are arranged at the platform flow dead zone of the second muffler passage 23, and at the same time, the second lifting rod 302 is connected to the platform of the upper passage of the muffler, that is, the platform of the first muffler passage 22, wherein the second lifting rod 302 is also called a push rod for pushing the first muffler passage 22, and is connected to the platform of the first muffler passage 22 through the push rod, so that the cavity depth of the muffler 20 can be changed, according to the principle of the muffler, the cavity depth change can change the corresponding sound absorption frequency band, therefore, for different operating positions and operating states of the extractor hood (such as different exhaust resistance, etc.), the depth of the cavity can be adaptively adjusted.

[0050] Further, based on the extractor hood shown in the above diagram, the embodiment of the present application also provides a control method of an extractor hood, the method is applied to the above-mentioned extractor hood, and the extractor hood is provided with a muffler, the muffler is arranged between the main cabinet and the smoke collecting cavity of the extractor hood; specifically, Figure 4 As shown in the flow chart of the control method of the extractor hood, the method includes the following steps:

[0051] Step S402, in response to the starting operation acting on the extractor hood, the smoke collecting cavity of the extractor hood is controlled to drop to a preset position;

[0052] Step S404, collecting the working noise parameter of the extractor hood;

[0053] Step S406, determining the adjustment parameter of the muffler based on the working noise parameter;

[0054] Step S408, adjust the cavity depth of the muffler according to the adjustment parameter, so that the cavity depth of the muffler matches the working noise parameter.

[0055] Specifically, referring to Figures 1-3 , the range hood in the embodiment of the application is configured with a first lifting mechanism, which is used to adjust the relative position of the muffler 20 and the main machine box 10, so as to adjust the lifting position of the smoke collecting cavity 30; therefore, in the step S402 described above, when the smoke collecting cavity of the range hood is controlled to drop to the preset position, the range hood can start the first lifting mechanism to control the smoke collecting cavity to drop to the preset position.

[0056] In actual use, the first lifting mechanism described above is usually in communication with the controller of the range hood, and the controller of the range hood can execute the control method of the embodiment of the application, such as starting the first lifting mechanism, controlling the smoke collecting cavity to drop to the preset position through the first lifting mechanism, and the like. Further, the range hood in the embodiment of the application is usually configured with a detection device, which can detect the cooking state of the stove, the amount of oil fume, and the like, and realize the adjustment of the power and the gear of the range hood, and the like, so that the working condition of the range hood can be detected after the range hood is started, and the working noise parameter can be collected.

[0057] Further, in the step S406 described above, when the adjustment parameter of the muffler is determined based on the working noise parameter, a preconfigured adjustment relationship table can be obtained, and the adjustment parameter corresponding to the working noise parameter can be found in the adjustment relationship table.

[0058] Specifically, the adjustment relationship table in the embodiment of the application is used to record the corresponding relationship between the noise parameter and the adjustment parameter; and the adjustment parameter is used to represent the depth of the cavity of the muffler.

[0059] In actual use, the working noise parameter can be the frequency band parameter of the working noise of the range hood, such as the low-frequency band or the medium-frequency band, and under laboratory conditions, the depth of the matching cavity can be pre-set according to the possible frequency band of the working noise of the range hood, so that the cavity of the muffler can have a better sound absorption effect, for example, for each frequency band or frequency band range, a better depth of the cavity can be obtained through experiments, and then each frequency band or frequency band range and the corresponding depth of the cavity are counted to construct the adjustment relationship table described above, and the adjustment relationship table is stored in the form of data, so as to determine the adjustment parameter of the muffler based on the working noise parameter when the control method in the embodiment of the application is executed.

[0060] Further, in order to facilitate understanding, Figure 5 A curve diagram of an adjustment relationship is shown, wherein, Figure 5 The curve shown is also called a transmission loss curve, Figure 5The abscissa in the figure represents a frequency band, usually expressed in Hz; the ordinate represents the noise absorption amount, which can be expressed in decibels. Figure 5 The noise absorption effect of different cavity depths L is shown in the figure. Figure 5 The wave troughs in the ellipse can be seen that, for different cavity depths L, as the depth L gradually increases, the transmission loss curve moves to low frequency. Therefore, based on the above Figure 5 The above adjustment relationship table can be generated based on the curve shown in the figure, and then after the working noise parameters of the range hood are collected, the frequency band of the working noise can be converted, and then based on the above Figure 5 The adjustment parameters of the muffler under the current working condition, i.e. the cavity depth corresponding to the cavity of the muffler, are determined based on the curve shown in the figure, and then the cavity of the muffler is adjusted to the depth corresponding to the adjustment parameter, so that the cavity depth of the muffler matches the working noise parameters.

[0061] Further, based on the above Figures 1-3 The above muffler 20 includes a muffler body 21, a first muffler passage 22, and a second lifting mechanism corresponding to the first muffler passage 22; the first muffler passage 22 is movably nested inside the muffler body 21 to form the cavity of the muffler 20; therefore, when adjusting the cavity depth of the muffler 20 according to the adjustment parameters, the second lifting mechanism can be started to control the movement of the first muffler passage 22 through the second lifting mechanism, to adjust the relative position of the first muffler passage 22 and the muffler body 21, so that the depth of the cavity matches the adjustment parameters.

[0062] In actual use, the above second lifting mechanism also communicates with the controller of the range hood to start and control the second lifting mechanism through the controller.

[0063] In addition, to prevent interference during the movement of the first muffler passage 22, the control method in the embodiment of the present application should follow the logic that first lower the smoke collecting cavity 30 to a preset position through the first lifting mechanism, and then control the movement of the first muffler passage 22 through the second lifting mechanism. In short, based on the use scenario of the range hood, the depth of the cavity of the muffler 20 changes upwards, so the whole muffler 20 cavity should be lowered to a certain position first, and then the depth of the muffler 20 cavity is adjusted according to the lowered position.

[0064] Further, in the embodiment of the present application, the muffler cavity can also be controlled to retract to a preset initial depth in response to the shutdown operation of the range hood; and the main box of the range hood can be controlled to retract to a preset initial length, so that the smoke collecting cavity retracts to the initial position.

[0065] That is, when the user turns off the range hood, the controller of the range hood can respond to the shutdown operation, then turn off the fan, and start the second lifting mechanism, i.e., the second motor, to make the cavity of the muffler retract to the initial position, and then the first lifting mechanism, i.e., the first motor, is started to make the main cabinet retract to the initial length.

[0066] Therefore, the range hood and the control method thereof provided by the embodiment of the present application can respond to the starting operation acting on the range hood, control the smoke collecting cavity of the range hood to drop to a preset position, then collect the working noise parameter of the range hood, determine the adjustment parameter of the muffler based on the working noise parameter, and then adjust the cavity depth of the muffler according to the adjustment parameter, so as to match the cavity depth of the muffler with the working noise parameter, achieve the optimal noise reduction effect by adjusting the cavity depth of the muffler while adjusting the height of the smoke inlet of the smoke collecting cavity, and effectively improve the user experience.

[0067] Further, on the basis of the above-mentioned embodiment, the embodiment of the present application further provides a control device of a range hood, the range hood being provided with a muffler, the muffler being arranged between the main cabinet and the smoke collecting cavity of the range hood; as shown in a structural schematic diagram of a control device of a range hood, Figure 6 as shown in a structural schematic diagram of a control device of a range hood,

[0068] The response module 60 is used to respond to the starting operation of the range hood, and control the smoke collecting cavity of the range hood to drop to a preset position.

[0069] The collection module 62 is used to collect the working noise parameter of the range hood.

[0070] The determination module 64 is used to determine the adjustment parameter of the muffler based on the working noise parameter.

[0071] The control module 66 is used to adjust the cavity depth of the muffler according to the adjustment parameter, so as to match the cavity depth of the muffler with the working noise parameter.

[0072] The control device of the range hood provided by the embodiment of the present application has the same technical features as the control method of the range hood provided by the above-mentioned embodiment, so it can also solve the same technical problems and achieve the same technical effects.

[0073] Further, the embodiment of the present application further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the above-mentioned method when executing the computer program.

[0074] The embodiment of the present application further provides a computer readable storage medium, and the computer readable storage medium stores a computer program, and the computer program is executed by the processor to execute the steps of the above-mentioned method.

[0075] Further, the embodiment of the present application further provides a structural schematic diagram of an electronic device, as shown in the figure, which is a structural schematic diagram of the electronic device, wherein the electronic device comprises a processor 71 and a memory 70, the memory 70 stores computer executable instructions capable of being executed by the processor 71, and the processor 71 executes the computer executable instructions to realize the method. Figure 7

[0076] In the embodiment shown in the figure, the electronic device further comprises a bus 72 and a communication interface 73, wherein the processor 71, the communication interface 73 and the memory 70 are connected through the bus 72. Figure 7

[0077] The memory 70 can contain a high-speed random access memory (RAM) and can also include a non-volatile memory, such as at least one disk memory. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 73 (which can be wired or wireless), and the Internet, a wide area network, a local area network, a metropolitan area network, etc. can be used. The bus 72 can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The bus 72 can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation, Figure 7 only one bidirectional arrow is used in the figure, but it does not mean that there is only one bus or only one type of bus.

[0078] ​​The processor 71 can be an integrated circuit chip with processing capability. In the implementation process, each step of the above method can be completed by the integrated logic circuit of hardware in the processor 71 or the instruction in the form of software. The processor 71 described above can be a general processor, including a central processing unit (CPU), a network processor (NP), etc.; can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as a hardware decoding processor for execution, or a combination of hardware and software modules in the decoding processor for execution. The software module can be located in a random access memory, a flash memory, a read only memory, a programmable read only memory or an electrically erasable programmable memory, a register, etc. The storage medium in the art. The storage medium is located in the memory, and the processor 71 reads the information in the memory, and combines the hardware to complete the foregoing method.

[0079] The computer program product of the range hood, the control method and the device provided by the embodiments of the present application includes a computer readable storage medium storing program codes, and the instructions included in the program codes can be used to execute the method described in the foregoing method embodiments. For specific implementation, please refer to the method embodiments, which will not be described here.

[0080] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the device described above can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0081] In addition, in the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0082] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the parts of the present application that essentially contribute to the prior art or the parts of the technical solutions can be embodied in the form of software products. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in the various embodiments of the present application. The aforementioned storage medium includes a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a magnetic disk or an optical disk, and various media that can store program codes.

[0083] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0084] Finally, it should be noted that: the above embodiments are only specific embodiments of the present application, which are used to illustrate the technical solutions of the present application, and are not limited thereto, the protection scope of the present application is not limited thereto, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art within the technical range disclosed by the present application can modify or easily think of changes to the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications, changes or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A control method for a range hood, characterized in that, The range hood is equipped with a silencer, which is located between the main unit box and the smoke collection chamber of the range hood; The method includes: In response to the start operation of the range hood, the smoke collection chamber of the range hood is controlled to descend to a preset position; Collect the operating noise parameters of the range hood; The adjustment parameters of the muffler are determined based on the operating noise parameters. Adjust the cavity depth of the muffler according to the adjustment parameters so that the cavity depth of the muffler matches the operating noise parameters; The step of determining the adjustment parameters of the muffler based on the operating noise parameters includes: Obtain a pre-configured adjustment relationship table, wherein the adjustment relationship table is used to record the correspondence between noise parameters and adjustment parameters; the adjustment parameters are used to characterize the depth of the muffler cavity; Find the adjustment parameter corresponding to the operating noise parameter in the adjustment relationship table; The adjustment relationship table is determined based on the transmission loss curve, which is used to characterize the noise absorption effect corresponding to different cavity depths. Furthermore, as the cavity depth gradually increases, the transmission loss curve shifts towards lower frequencies.

2. The method according to claim 1, characterized in that, The range hood is equipped with a first lifting mechanism, which is used to adjust the relative position of the silencer and the main unit box, so as to adjust the lifting position of the smoke collection chamber; The step of controlling the smoke collection chamber of the range hood to descend to a preset position includes: The first lifting mechanism is activated, and the smoke collection chamber is lowered to a preset position by the first lifting mechanism.

3. The method according to claim 1, characterized in that, The muffler includes a muffler body, a first muffler channel, and a second lifting mechanism corresponding to the first muffler channel; the first muffler channel is movably nested inside the muffler body to form the cavity of the muffler. The steps of adjusting the cavity depth of the muffler according to the adjustment parameters include: The second lifting mechanism is activated, and the first muffler channel is moved through the second lifting mechanism to adjust the relative position of the first muffler channel and the muffler body so that the depth of the cavity matches the adjustment parameter.

4. The method according to claim 1, characterized in that, The method further includes: In response to the shutdown operation of the range hood, the cavity of the silencer is controlled to retract to a preset initial depth; In addition, the main unit of the range hood is controlled to retract to a preset initial length so that the smoke collection chamber retracts to its initial position.

5. A control device for a range hood, characterized in that, The range hood is equipped with a silencer, which is located between the main unit box and the smoke collection chamber of the range hood; The device includes: The response module (60) is used to respond to the start operation of the range hood and control the smoke collection chamber of the range hood to descend to a preset position; The acquisition module (62) is used to acquire the operating noise parameters of the range hood; The determining module (64) is used to determine the adjustment parameters of the muffler based on the operating noise parameters; Control module (66) is used to adjust the cavity depth of the muffler according to the adjustment parameters so that the cavity depth of the muffler matches the working noise parameters; The determining module (64) is further configured to: Obtain a pre-configured adjustment relationship table, wherein the adjustment relationship table is used to record the correspondence between noise parameters and adjustment parameters; the adjustment parameters are used to characterize the depth of the muffler cavity; find the adjustment parameter corresponding to the working noise parameter in the adjustment relationship table; The adjustment relationship table is determined based on the transmission loss curve, which is used to characterize the noise absorption effect corresponding to different cavity depths. Furthermore, as the cavity depth gradually increases, the transmission loss curve shifts towards lower frequencies.

6. A range hood, characterized in that, The controller of the range hood is equipped with the control device of the range hood as described in claim 5. The range hood includes a main unit, a silencer, and a smoke collection chamber; the silencer is disposed between the main unit and the smoke collection chamber. The main unit and the muffler are connected by a first lifting mechanism, and the main unit housing and the muffler are nested together; the muffler is fixedly connected to the smoke collection chamber. The first lifting mechanism is used to adjust the relative position of the muffler and the main unit box, so as to adjust the lifting position of the smoke collection chamber; The muffler includes a muffler body, a first muffler channel, and a second lifting mechanism corresponding to the first muffler channel. The first muffler channel is movably nested inside the muffler body, and the cavity space enclosed by the first muffler channel and the muffler body constitutes the cavity of the muffler; The second lifting mechanism is used to adjust the relative position of the first muffler channel and the muffler body to adjust the depth of the cavity.

7. The range hood according to claim 6, characterized in that, The muffler also includes a second muffler channel; The second muffler channel is fixedly disposed on the side of the muffler near the smoke collection chamber; The second muffler channel is matched with the smoke collection chamber.

8. The range hood according to claim 6, characterized in that, The first lifting mechanism includes a first motor, a first lifting rod, and a first fixed column that matches the first lifting rod; The first motor is fixed to the housing of the main unit; the first fixing post is fixed to the housing of the muffler. One end of the first lifting rod is connected to the first motor, and the other end is connected to the first fixed column; The first motor drives the first lifting rod to move the first fixed column, thereby adjusting the relative position of the muffler and the main unit.

9. The range hood according to claim 6, characterized in that, The second lifting mechanism includes a second motor and a second lifting rod; The second motor is fixed at a preset position on the muffler body; One end of the second lifting rod is connected to the second motor, and the other end is connected to a preset position in the first muffler channel; The second motor drives the second lifting rod to move the first muffler channel and adjust the relative position of the first muffler channel and the muffler body.

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