Range hood and control method and device thereof

Abstract

The invention provides a range hood and a control method and device thereof, and relates to the technical field of intelligent control, the method is applied to the range hood, the range hood is provided with a silencer, and the silencer is arranged between a main machine box and a smoke collecting cavity of the range hood; the method comprises the following steps: in response to starting operation acting on the range hood, controlling a smoke collecting cavity of the range hood to descend to a preset position; working noise parameters of the range hood are collected; determining an adjustment parameter of the silencer based on the working noise parameter; and the cavity depth of the silencer is adjusted according to the adjusting parameters so that the cavity depth of the silencer can be matched with the working noise parameters. According to the range hood and the control method and device thereof, the optimal noise reduction effect can be achieved by adjusting the depth of the cavity of the silencer while the height of the smoke suction opening of the smoke collection cavity is adjusted, and the use experience of a user is effectively improved.

Description

Technical Field

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

[0002] Range hoods, also known as range hoods, extractor hoods, etc., are an indispensable household appliance in today's home kitchens. As their oil fume extraction effect increases, the noise they bring 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] Judging from the working noise spectrum, under each operating gear of the range hood, the medium and low frequencies within 1000Hz account for the largest proportion, and the medium and low frequency noise sound waves are large, and the commonly used passive noise reduction methods such as sound-absorbing cotton have poor effects on medium and low frequency sound waves.

[0004] Therefore, expansion silencers, as a resistant silencer method, have been widely used in the fields of automobiles, home appliances, etc. By designing their expansion ratios, they can achieve low-frequency noise reduction effects in limited spaces.

[0005] However, many of the current range hoods that use the silencer chamber principle are essentially quite different from the silencer chamber principle and have not formed a true expansion-contraction structure, resulting in poor silencer effects and difficulty in improving user experience. Summary of the invention

[0006] In view of this, an object of the present invention is to provide a range hood and a control method and device thereof to alleviate the above technical problems.

[0007] In the first aspect, an embodiment of the present invention provides a control method for a range hood, which is equipped with a muffler, and the muffler is arranged between a main box and a smoke collecting chamber of the range hood; the method includes: responding to a startup operation acting on the range hood, controlling the smoke collecting chamber of the range hood to descend to a preset position; collecting working noise parameters of the range hood; determining adjustment parameters of the muffler based on the working noise parameters; and adjusting the cavity depth of the muffler according to the adjustment parameters so that the cavity depth of the muffler matches the working noise parameters.

[0008] In combination with the first aspect, an embodiment of the present invention provides a first possible implementation manner of the first aspect, wherein the above-mentioned range hood is configured with a first lifting mechanism, and the first lifting mechanism is used to adjust the relative position of the muffler and the main case to adjust the lifting position of the smoke collecting chamber; the above-mentioned step of controlling the smoke collecting chamber of the range hood to descend to a preset position includes: starting the first lifting mechanism, and controlling the smoke collecting chamber to descend to the preset position through the first lifting mechanism.

[0009] In combination with the first aspect, an embodiment of the present invention provides a second possible implementation method of the first aspect, wherein the above-mentioned step of determining the adjustment parameters of the muffler based on the working noise parameters includes: obtaining a pre-configured adjustment relationship table, wherein the adjustment relationship table is used to record the correspondence between the noise parameters and the adjustment parameters; the adjustment parameters are used to characterize the depth of the muffler cavity, and the adjustment parameters corresponding to the working noise parameters are searched in the adjustment relationship table.

[0010] In combination with the first aspect, an embodiment of the present invention provides a third possible implementation method of the first aspect, wherein 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 inside the muffler body to form a cavity of the muffler; the step of adjusting the cavity depth of the muffler according to the adjustment parameter includes: starting the second lifting mechanism, controlling the movement of the first muffler channel 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.

[0011] In combination with the first aspect, an embodiment of the present invention provides a fourth possible implementation of the first aspect, wherein the above method also includes: in response to a shutdown operation acting on the range hood, controlling the cavity of the muffler to retract to a preset initial depth; and controlling the main case of the range hood to retract to a preset initial length so that the smoke collection chamber retracts to the initial position.

[0012] In a second aspect, an embodiment of the present invention further provides a control device for a range hood, which is equipped with a muffler, and the muffler is arranged between a main cabinet and a smoke collecting chamber of the range hood; the device includes: a response module, which is used to respond to the start-up operation of the range hood and control the smoke collecting chamber of the range hood to descend to a preset position; a collection module, which is used to collect the working noise parameters of the range hood; a determination module, which is used to determine the adjustment parameters of the muffler based on the working noise parameters; and a control module, which 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.

[0013] In the third aspect, an embodiment of the present invention also provides a range hood, which includes a main case, a muffler, and a smoke collecting chamber; the muffler is arranged between the main case and the smoke collecting chamber; the main case and the muffler are connected by a first lifting mechanism, and the case body of the main case and the muffler are nested; the muffler is fixedly connected to the smoke collecting chamber; the first lifting mechanism is used to adjust the relative position of the muffler and the main case to adjust the lifting position of the smoke collecting chamber; wherein the muffler includes a muffler main 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 main body, and the cavity space surrounded by the first muffler channel and the muffler main 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 main body to adjust the depth of the cavity.

[0014] In combination with the third aspect, an embodiment of the present invention provides a first possible implementation of the third aspect, wherein the above-mentioned muffler also includes a second muffler channel; the second muffler channel is fixedly arranged on a side of the muffler close to the smoke collecting chamber; the second muffler channel matches the smoke collecting chamber.

[0015] In combination with the third aspect, an embodiment of the present invention provides a second possible implementation scheme of the third aspect, wherein the above-mentioned first lifting mechanism includes a first motor, a first lifting rod, and a first fixed column matching the first lifting rod; wherein the first motor is fixed on the shell of the main case; the first fixed column is fixed on the shell 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 lifting rod is driven by the first motor to push the first fixed column to move, thereby adjusting the relative position of the muffler and the main case.

[0016] In combination with the third aspect, an embodiment of the present invention provides a third possible implementation scheme of the third aspect, wherein the above-mentioned second lifting mechanism includes 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 to the second motor, and the other end is connected to the preset position of the first muffler channel; the second lifting rod is driven by the second motor to push the first muffler channel to move and adjust the relative position of the first muffler channel and the muffler body.

[0017] The embodiments of the present invention bring the following beneficial effects:

[0018] The range hood and its control method and device provided in the embodiment of the present invention can respond to the startup operation acting on the range hood, control the smoke collecting chamber of the range hood to descend to a preset position; then collect the working noise parameters of the range hood; determine the adjustment parameters of the muffler based on the working noise parameters, and then adjust the cavity depth of the muffler according to the adjustment parameters to match the cavity depth of the muffler with the working noise parameters, so as to achieve the optimal noise reduction effect by adjusting the cavity depth of the muffler while adjusting the height of the smoke collection chamber suction port, thereby effectively improving the user experience.

[0019] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of a range hood provided by an embodiment of the present invention;

[0023] Figure 2 An exploded diagram of a range hood provided by an embodiment of the present invention;

[0024] Figure 3 A front cross-sectional schematic diagram of a range hood provided by an embodiment of the present invention;

[0025] Figure 4 A flow chart of a range hood control method provided by an embodiment of the present invention;

[0026] Figure 5 A curve diagram of an adjustment relationship provided by an embodiment of the present invention;

[0027] Figure 6 A schematic structural diagram of a range hood control device provided by an embodiment of the present invention;

[0028] Figure 7 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention.

[0029] Icons: 10-main chassis; 20-muffler; 30-smoke collecting chamber; 201-first motor; 202-first lifting rod; 203-first fixing column; 204-motor base; 21-muffler body; 22-first muffler channel; 23-second muffler channel; 300-fan; 301-second motor; 302-second lifting rod; 303-gear set. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0031] At present, many range hoods that use the silencer cavity principle are essentially different from the silencer cavity principle and have not formed a true expansion-contraction structure. Especially for lift range hoods, it is difficult to adjust the sound absorption frequency band by adjusting the length of the box.

[0032] Based on this, a range hood and a control method and device thereof provided in an embodiment of the present invention can effectively alleviate the above-mentioned problems, and adjust the depth of the internal silencer cavity while adjusting the height of the smoke inhalation port of the smoke collecting cavity, thereby achieving the optimal noise reduction effect.

[0033] To facilitate understanding of this embodiment, a range hood disclosed in an embodiment of the present invention is first introduced in detail.

[0034] In a possible implementation, an embodiment of the present invention provides a range hood, which includes a main case, a muffler, and a smoke collecting chamber; the muffler is arranged between the main case and the smoke collecting chamber; that is, the range hood provided by the embodiment of the present invention is actually a lifting range hood with a muffler, and the muffler is arranged in a liftable main case, that is, the position of the range hood air duct, to play the role of noise reduction and lifting position.

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

[0036] In actual use, the first lifting mechanism actually adjusts the position of the smoke collecting chamber, that is, when the range hood is not in use, the smoke collecting chamber is retracted to the initial position by the first lifting mechanism, that is, the smoke collecting chamber is folded; when the range hood is in use, the smoke collecting chamber is lowered to a position closer to the stove by the first lifting mechanism to achieve a good smoking effect.

[0037] Furthermore, the above-mentioned muffler includes a muffler main 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 main body, and the cavity space surrounded by the first muffler channel and the muffler main body constitutes the cavity of the muffler; the cavity is used as a muffler cavity, and the second lifting mechanism is used to adjust the relative position of the first muffler channel and the muffler main body to adjust the depth of the cavity, thereby changing the depth of the muffler cavity to match the frequency band of the working noise of the range hood, thereby achieving a noise reduction effect.

[0038] For ease of understanding, Figure 1 A schematic diagram of a range hood is shown, Figure 1 As shown, it includes a main box 10, a muffler 20 and a smoke collecting chamber 30.

[0039] Further, in order to effectively adjust the relative position of the muffler and the main box, the first lifting mechanism is arranged on both sides of the main box, specifically, as Figure 1 As shown, the first lifting mechanism includes a first motor 201, a first lifting rod 202, and a first fixed column 203 matching the first lifting rod 202; wherein the first motor 201 is fixed to the shell of the main case 10 through a motor base 204; the first fixed column 203 is fixed to the shell of the muffler 20; specifically, the first fixed column 203 is fixed to the shell of the muffler body, one end of the first lifting rod 202 is connected to the first motor 201, and the other end is connected to the first fixed column 203, so as to drive the first lifting rod 202 through 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 case 10, and adjusting the relative position of the muffler 20 and the main case 10.

[0040] For ease of explanation, Figure 1 Only the first lifting mechanism on one side of the main box is shown within the viewing range, and in actual use, the above-mentioned first lifting rod can be set in the form of a screw, and the corresponding first fixing column can be in the form of a stud. The screw is driven to rotate by the first motor, thereby pushing the stud to move up and down, and the stud is connected to the muffler body to achieve a lifting effect.

[0041] In addition, in order to prevent possible interference between the connecting parts of the first motor and the main chassis (such as the outlet of the internal muffler, etc.), a convex surface can be set at the position of the main chassis, or short-head rivets, welding, etc. can be used. The specific settings can be made according to actual usage, and the embodiments of the present invention are not limited to this.

[0042] Therefore, based on Figure 1 As shown in the whole machine diagram, the muffler configured for the range hood in the embodiment of the present invention can be understood as a modular component with lifting and noise reduction functions, and is connected between the main case and the smoke collecting chamber of the range hood, and can be used in conjunction with different main cases and smoke collecting chambers, and has a wide range of applications.

[0043] Furthermore, the muffler in the embodiment of the present invention also includes a second muffler channel; the second muffler channel is fixedly arranged on a side of the muffler close to the smoke collecting chamber; and the second muffler channel matches the smoke collecting chamber, for example, it can be replaced according to different smoke collecting chamber structures to achieve a desired expansion ratio.

[0044] For ease of understanding, Figure 1 On the basis of Figure 2 An exploded view of a range hood is shown, Figure 2 As shown, Figure 1 The corresponding exploded diagram of the whole machine is as follows: Figure 2 As shown, except Figure 1 The structure shown in Figure 2 The figure further shows that the muffler includes 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, and can be adjusted according to the actual structure of the range hood. In the embodiment of the present invention, in order to cooperate with the central placement of the fan, the upper channel adopts a double outlet design; the muffler body 21 is connected to the first lifting mechanism, and its length is the maximum lifting amount of the range hood of the embodiment of the present invention; the second muffler channel 23 is used as the lower channel of the entire muffler, and is also designed as a separate part, which can be replaced according to the structure of different smoke collecting chambers. This is because according to the muffler principle, the change of the expansion ratio will affect the maximum sound absorption coefficient. Therefore, the second muffler channel 23 is designed as a separate part, which is also convenient for adjusting the expansion ratio of the inlet according to the actual sound absorption performance requirements.

[0046] Furthermore, the second lifting mechanism in the embodiment of the present invention includes 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 to the second motor, and the other end is connected to the preset position of the first muffler channel; the second lifting rod is driven by the second motor to push the first muffler channel to move, adjust the relative position of the first muffler channel and the muffler body, and thereby change the depth of the muffler cavity.

[0047] Specifically, for ease of understanding, Figure 3 A schematic front cross-sectional view of a range hood is shown, specifically, Figure 3 The front cross-sectional view of the main box of the range hood is shown, that is, the main box 10, the first lifting mechanism on both sides, and the partial structure of the muffler 20, and Figure 1 and Figure 2 The structure shown, Figure 3 Also shown is a fan 300 of the range hood, and the second lifting mechanism includes a second motor 301 and a second lifting rod 302 , and a gear set 303 connecting the second motor 301 and the second lifting rod 302 .

[0048] Specifically, Figure 3 As shown, in order to achieve the lifting effect of the range hood, Figure 3 The nesting order from outside to inside is respectively the outer shell of the main box 10 of the range hood, the muffler body 21, and the first muffler channel 22.

[0049] In actual use, in order to achieve the silencing effect of the first muffler channel 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 channel 23. At the same time, the second lifting rod 302 is connected to the platform of the upper channel of the muffler, that is, the platform of the first muffler channel 22, wherein the second lifting rod 302 is also called a push rod for pushing the first muffler channel 22, and is connected to the platform of the first muffler channel 22 through the push rod. In this way, the cavity depth of the muffler 20 can be changed. According to the muffler principle, the change of the cavity depth can change its corresponding sound absorption frequency band. Therefore, for different operating gears and operating states of the range hood (such as different smoke exhaust resistances, etc.), the depth of the cavity can be adaptively adjusted.

[0050] Further, based on the range hood shown in the above figure, an embodiment of the present invention further provides a range hood control method, which is applied to the range hood, and the range hood is equipped with a muffler, which is arranged between the main box and the smoke collecting chamber of the range hood; specifically, Figure 4 A flow chart of a range hood control method is shown, the method comprising the following steps:

[0051] Step S402, in response to the start-up operation on the range hood, controlling the smoke collecting chamber of the range hood to descend to a preset position;

[0052] Step S404, collecting working noise parameters of the range hood;

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

[0054] Step S408: adjusting the cavity depth of the muffler according to the adjustment parameters so that the cavity depth of the muffler matches the working noise parameters.

[0055] Specifically, see Figure 1 to Figure 3 The range hood in the embodiment of the present invention is provided with a first lifting mechanism, which is used to adjust the relative position of the muffler 20 and the main case 10 to adjust the lifting position of the smoke collecting chamber 30; therefore, in the above step S402, when controlling the smoke collecting chamber of the range hood to descend to the preset position, the range hood can start the first lifting mechanism and control the smoke collecting chamber to descend to the preset position through the first lifting mechanism.

[0056] In actual use, the first lifting mechanism is usually communicated with the controller of the range hood, and the controller of the range hood can execute the control method of the embodiment of the present invention, such as starting the first lifting mechanism, controlling the smoke collecting chamber to descend to a preset position through the first lifting mechanism, etc. Further, the range hood in the embodiment of the present invention is usually equipped with a detection device, which can detect the cooking state of the stove, the amount of oil smoke, etc., and realize the power and gear adjustment of the range hood, etc. Therefore, after the range hood is started, the working condition of the range hood can be detected and the working noise parameters can be collected.

[0057] Furthermore, in the above step S406, when determining the adjustment parameters of the muffler based on the working noise parameters, a pre-configured adjustment relationship table may be obtained, and the adjustment parameters corresponding to the working noise parameters may be searched in the adjustment relationship table.

[0058] Specifically, the adjustment relationship table in the embodiment of the present invention is used to record the corresponding relationship between the noise parameters and the adjustment parameters; and the adjustment parameters are used to characterize the depth of the cavity of the muffler.

[0059] In actual use, the above-mentioned working noise parameters may be frequency band parameters of the range hood working noise, such as a low-frequency band or a medium-frequency band, etc., and, under laboratory conditions, the depth of the matching cavity may be set in advance according to the possible frequency band of the range hood working noise, so that the cavity of the muffler can have a better sound absorption effect. For example, for each frequency band, or a frequency band range, an optimal cavity depth may be obtained through experiments, and then statistics are collected for each frequency band, or a frequency band range, and the corresponding cavity depth to construct the above-mentioned adjustment relationship table, and store it in the form of data, so that when executing the control method in the embodiment of the present invention, the adjustment parameters of the muffler can be determined based on the working noise parameters.

[0060] Further, for ease of understanding, Figure 5 A curve diagram showing an adjustment relationship is shown, wherein Figure 5 The curve shown is also called the transmission loss curve. Figure 5The horizontal axis represents the frequency band, which is usually expressed in Hz; the vertical axis represents the noise absorption, which can be expressed in decibels. And, Figure 5 The noise absorption effect of different cavity depths L is shown in FIG. Figure 5 From the trough circled by the ellipse, it can be seen that for different cavity depths L, when the depth L gradually increases, the transmission loss curve moves toward low frequencies. Figure 5 The curve graph shown in FIG. 1 can generate the above adjustment relationship table, and then after collecting the working noise parameters of the range hood, it can be converted into the frequency band of the working noise, and then based on the above Figure 5 The curve graph shown determines the adjustment parameters of the muffler under the current working conditions, that is, the cavity depth corresponding to the cavity of the muffler, and then adjusts the cavity of the muffler to the depth corresponding to the adjustment parameters so that the cavity depth of the muffler matches the working noise parameters.

[0061] Further, based on Figure 1 to Figure 3 The above-mentioned muffler 20 includes a muffler body 21, a first muffler channel 22, and a second lifting mechanism corresponding to the first muffler channel 22; the first muffler channel 22 is movably nested in the interior of the muffler body 21 to form a cavity of the muffler 20; therefore, when the cavity depth of the muffler 20 is adjusted according to the adjustment parameters, the second lifting mechanism can be started, and the movement of the first muffler channel 22 can be controlled by the second lifting mechanism to adjust the relative position of the first muffler channel 22 and the muffler body 21 so that the depth of the cavity matches the adjustment parameters.

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

[0063] In addition, in order to prevent interference problems during the movement of the first muffler channel 22, the control method in the embodiment of the present invention should follow the logic that the smoke collecting chamber 30 is first lowered to a preset position by the first lifting mechanism, and then the movement of the first muffler channel 22 is controlled by 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 upward, so it is necessary to ensure that the cavity of the muffler 20 as a whole is first lowered to a certain position, and then the depth of the cavity of the muffler 20 is adjusted according to the lowered position.

[0064] Furthermore, in an embodiment of the present invention, in response to a shutdown operation on the range hood, the cavity of the muffler can be controlled to retract to a preset initial depth; and the main case of the range hood can be controlled to retract to a preset initial length so that the smoke collection chamber 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, that is, the second motor starts, so that the cavity of the muffler retracts to the initial position, and then the first lifting mechanism, that is, the first motor starts, so that the main box retracts to the initial length.

[0066] Therefore, the range hood and control method thereof provided in the embodiment of the present invention can respond to the startup operation acting on the range hood, control the smoke collecting chamber of the range hood to descend to a preset position; then collect the working noise parameters of the range hood; determine the adjustment parameters of the muffler based on the working noise parameters, and then adjust the cavity depth of the muffler according to the adjustment parameters to match the cavity depth of the muffler with the working noise parameters, so as to achieve the optimal noise reduction effect by adjusting the cavity depth of the muffler while adjusting the height of the smoke collection chamber smoking port, thereby effectively improving the user experience.

[0067] Further, based on the above embodiment, the embodiment of the present invention also provides a control device for a range hood, the range hood is equipped with a muffler, and the muffler is arranged between the main box and the smoke collecting chamber of the range hood; Figure 6 The structural schematic diagram of a control device for a range hood shown in FIG.

[0068] The response module 60 is used to respond to the start-up operation of the range hood and control the smoke collecting chamber of the range hood to descend to a preset position;

[0069] A collection module 62 is used to collect working noise parameters of the range hood;

[0070] A determination module 64, configured to determine adjustment parameters of the muffler based on the operating noise parameters;

[0071] The 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.

[0072] The range hood control device provided in the embodiment of the present invention has the same technical features as the range hood control method provided in the above embodiment, and therefore can solve the same technical problems and achieve the same technical effects.

[0073] Furthermore, an embodiment of the present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the computer program.

[0074] An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above method are executed.

[0075] Furthermore, an embodiment of the present invention also provides a structural diagram of an electronic device, such as Figure 7 As shown, it is a schematic diagram of the structure of the electronic device, wherein the electronic device includes a processor 71 and a memory 70, the memory 70 stores computer executable instructions that can be executed by the processor 71, and the processor 71 executes the computer executable instructions to implement the above method.

[0076] exist Figure 7 In the illustrated embodiment, the electronic device further includes a bus 72 and a communication interface 73 , wherein the processor 71 , the communication interface 73 and the memory 70 are connected via the bus 72 .

[0077] Among them, the memory 70 may include a high-speed random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), such as at least one disk storage. 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, wide area network, local area network, 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 ease of representation, Figure 7 Only one bidirectional arrow is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0078] The processor 71 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit in the processor 71 or the instructions in the form of software. The above processor 71 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present invention can be directly embodied as a hardware decoding processor to be executed, or the hardware and software modules in the decoding processor can be executed. The software module can be located in a mature storage medium in the field such as 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 is located in the memory, and the processor 71 reads the information in the memory and completes the above method in combination with its hardware.

[0079] The computer program product of the range hood and its control method and device provided in the embodiments of the present invention includes a computer-readable storage medium storing program code. The instructions included in the program code can be used to execute the method described in the previous method embodiments. The specific implementation can be found in the method embodiments and will not be repeated 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 aforementioned method embodiment, and will not be repeated here.

[0081] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0082] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program codes.

[0083] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0084] Finally, it should be noted that the above embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A method for controlling a range hood, characterized in that: The range hood is equipped with a muffler, which is arranged between the main box and the smoke collecting chamber of the range hood; The method comprises: In response to a start-up operation on the range hood, controlling the smoke collecting chamber of the range hood to descend to a preset position; Collecting working noise parameters of the range hood; determining an adjustment parameter of the muffler based on the operating noise parameter; The cavity depth of the muffler is adjusted according to the adjustment parameter so that the cavity depth of the muffler matches the working noise parameter.

2. The method according to claim 1, characterized in that The range hood is provided with a first lifting mechanism, and 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 chamber; The step of controlling the smoke collecting chamber of the range hood to descend to a preset position comprises: The first lifting mechanism is started, and the smoke collecting chamber is controlled to descend to a preset position through the first lifting mechanism.

3. The method according to claim 1, characterized in that 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 noise parameters and adjustment parameters; the adjustment parameters are used to characterize the depth of the cavity of the muffler; The adjustment parameter corresponding to the working noise parameter is searched in the adjustment relationship table.

4. 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 a cavity of the muffler; The step of adjusting the cavity depth of the muffler according to the adjustment parameter comprises: The second lifting mechanism is started to control the movement of the first muffler channel 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.

5. The method according to claim 1, characterized in that The method further comprises: In response to a shutdown operation on the range hood, controlling the cavity of the muffler to retract to a preset initial depth; And, the main box of the range hood is controlled to retract to a preset initial length, so that the smoke collecting chamber retracts to an initial position.

6. A control device for a range hood, characterized in that: The range hood is equipped with a muffler, which is arranged between the main box and the smoke collecting chamber of the range hood; The device comprises: A response module (60), configured to respond to a start-up operation of the range hood and control the smoke collecting chamber of the range hood to descend to a preset position; A collection module (62), used for collecting the working noise parameters of the range hood; A determination module (64) for determining an adjustment parameter of the muffler based on the operating noise parameter; A control module (66) is used to 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.

7. A range hood, characterized in that: The range hood comprises a main box, a muffler, and a smoke collecting chamber; the muffler is arranged between the main box and the smoke collecting chamber; The main box is connected to the muffler via a first lifting mechanism, and the box body of the main box and the muffler are nested; the muffler is fixedly connected to the smoke collecting chamber; The first lifting mechanism is used to adjust the relative position of the muffler and the main box to adjust the lifting position of the smoke collecting chamber; 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 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.

8. The range hood according to claim 7, characterized in that: The muffler also includes a second muffler passage; The second muffler channel is fixedly arranged on a side of the muffler close to the smoke collecting chamber; The second muffler channel matches the smoke collecting chamber.

9. The range hood according to claim 7, characterized in that: The first lifting mechanism includes a first motor, a first lifting rod, and a first fixing column matched with the first lifting rod; Wherein, the first motor is fixed on the housing of the main box; the first fixing column is fixed on 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 fixing column; The first lifting rod is driven by the first motor to push the first fixing column to move, thereby adjusting the relative position of the muffler and the main box.

10. The range hood according to claim 7, characterized in that: The second lifting mechanism includes 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 to the second motor, and the other end is connected to a preset position of the first muffler channel; The second lifting rod is driven by the second motor to push the first muffler channel to move, thereby adjusting the relative position of the first muffler channel and the muffler body.

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