Exhaust hood lifting control method and exhaust hood

Abstract

This application provides a range hood lifting control method and a range hood, belonging to the field of kitchen appliance technology. The range hood lifting control method includes: detecting a target knocking signal, which is generated when the range hood, cabinet, or stove is knocked; responding to the detection of the target knocking signal, controlling the range hood to perform a lifting action when the cabinet door is closed, wherein the cabinet door, when closed, completely or partially obscures the range hood. Compared with traditional touch button control, this solution eliminates the need for a visible control panel on the surface of the range hood, thus better supporting a fully concealed design; compared with gesture control, it effectively reduces the possibility of accidental start-up of the range hood due to accidental touch; by confirming whether the cabinet door is closed before performing the lifting action, it effectively avoids the possibility of the range hood continuing to perform the lifting action when the cabinet door is open, which could potentially injure the user.

Description

Technical Field

[0001] This application belongs to the field of kitchen appliance technology, and in particular relates to a lifting control method for a range hood and a range hood. Background Technology

[0002] Current control solutions for range hoods mainly include touch buttons, mechanical buttons, gesture control, and voice control. For fully concealed lift-up range hoods designed within cabinets, touch control is difficult to implement because the touch panel is not directly visible. For gesture control, the gesture module faces directly above the cooktop, making accidental activation common. This means the range hood may be accidentally triggered when the user approaches the cooktop, impacting the user experience and potentially posing a physical risk. As for voice control, ambient kitchen noise can interfere with accurate voice command recognition. Summary of the Invention

[0003] The purpose of this application is to provide a range hood lifting control method and a range hood, so as to provide a new range hood lifting control method.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: The first aspect of this application provides a method for controlling the lifting of a range hood, comprising: Detect target knocking signals, which are generated when the range hood, cabinet, or stove is knocked. In response to the detection of a target knocking signal, the range hood is controlled to perform a lifting action when the cabinet door is closed. When the cabinet door is closed, the range hood is completely or partially blocked. When the range hood suddenly stops in the intermediate position while performing its descending motion, the method also includes: When the cabinet door is closed and a target knocking signal is detected, a first time interval is determined between the currently detected target knocking signal and the adjacent previous target knocking signal. If the first time interval is less than a first preset value, the descent action continues; if the first time interval is not less than the first preset value, the ascent action is controlled.

[0005] This application employs a combination of tapping signals to control the lifting and lowering of the range hood. Compared to traditional touch button control, this solution eliminates the need for a visible control panel on the range hood surface, thus better supporting a fully concealed design and enhancing the overall aesthetics of the kitchen. Compared to wave-control solutions, tapping actions are generally more explicit and conscious, effectively reducing the possibility of accidental start-up of the range hood due to accidental touches. Furthermore, in a kitchen environment, tapping signal detection is generally more stable and reliable than voice recognition, avoiding inaccurate recognition issues caused by environmental noise interference. Additionally, by confirming that the cabinet door is closed before performing the lifting and lowering action, it effectively prevents the range hood from continuing to lift and lower when the cabinet door is open, which could potentially injure the user, thereby improving the safety of equipment operation. When a target tapping signal is detected again and the first time interval is relatively short, it is essentially or... It's highly unlikely that the user intentionally stopped the range hood from descending. It's possible that the user repeatedly tapped the hood or accidentally caused it to stop. In this case, the user tapped quickly to try and make the range hood continue descending, resulting in a relatively short initial time interval. This short initial time interval indicates the user's intention to continue the descent. When the target tap signal is detected again with a relatively longer initial time interval, it's more likely the user intentionally stopped the range hood. For example, if the user taps the target surface before the range hood reaches the target height, placing it in an intermediate position, the user may prefer the range hood to operate at that current height. When the user finishes using the range hood and intends to turn it off, another target tap signal is detected with a relatively longer initial time interval, causing the range hood to rise and close. This makes the control process more user-friendly and improves the user experience.

[0006] In some implementations, the method also includes: if the cabinet door is detected to be open during the lifting and lowering action of the range hood, then the range hood is controlled to stop lifting and lowering.

[0007] In this implementation, if the cabinet door is detected to be open during the lifting and lowering process of the range hood, the range hood is controlled to stop lifting and lowering, providing users with a safer and more reliable user experience.

[0008] In some implementations, the method also includes: if the cabinet door is detected to be open during the lifting and lowering action of the range hood, an alarm indicator is output.

[0009] In this implementation, if the cabinet door is detected to be open during the lifting and lowering process of the range hood, an alarm indicator is output, allowing the user to quickly perceive the abnormal situation and clearly understand the reason why the range hood stops operating, thereby preventing the user from making improper operations due to a lack of understanding of the situation.

[0010] In some implementations, detecting a target tapping signal includes: identifying whether a second time interval between two consecutive tapping signals is less than a second preset value, wherein the tapping signal is generated when a range hood, cabinet, or stove is tapped; if the second time interval between two consecutive tapping signals is less than the second preset value, then it is determined that a target tapping signal has been detected.

[0011] In this implementation, if the second time interval between two consecutive tapping signals is less than a second preset value, it is determined that a target tapping signal has been detected, thereby improving the reliability of the range hood control and significantly enhancing the user experience.

[0012] In some implementations, the range hood is controlled to perform lifting and lowering actions when the cabinet door is closed, including: when both the cabinet door and the range hood are closed, the range hood is controlled to lower; when both the cabinet door and the range hood are open, the range hood is controlled to rise.

[0013] In this implementation, the range hood is intelligently positioned to determine and execute corresponding raising or lowering actions, thereby improving the intelligence level of the range hood's lifting control and the user experience.

[0014] In some implementations, when the range hood is in the off state, the target knocking signal includes at least two types. The range hood lifting control method further includes: acquiring the target knocking signal and determining the type of the target knocking signal; determining whether the cabinet door is in the closed state based on the target knocking signal; if it is determined that the cabinet door is in the closed state, controlling the lowering height of the range hood based on the type of the target knocking signal.

[0015] In this implementation, the height at which the range hood descends is controlled based on the type of target tapping signal. This allows users to determine the descent height of the range hood according to the amount of cooking fumes, enabling the range hood to better adapt to the diverse cooking scenarios in modern kitchens.

[0016] A second aspect of this application provides a range hood, comprising: The main body of the liftable range hood includes a control system; The impact detection device is electrically connected to the control system and is used to detect the impact signal of the target. The position detection device, electrically connected to the control system, is used to detect the open / closed status of the cabinet door; The control system is configured to perform the lifting control method provided by any of the above schemes.

[0017] This application employs a combination of tapping signals to control the raising and lowering of the range hood. Compared to traditional touch button control, this solution eliminates the need for a visible control panel on the range hood surface, thus better supporting a fully concealed design and enhancing the overall aesthetics of the kitchen. Compared to wave-control solutions, tapping actions are generally more explicit and conscious, effectively reducing the possibility of accidental start-up of the range hood due to accidental touches. Furthermore, in a kitchen environment, tapping signal detection is typically more stable and reliable than voice recognition, avoiding inaccurate recognition issues caused by environmental noise interference. Additionally, a position detection device detects the open / closed state of the cabinet door, providing a prerequisite for confirming whether the cabinet door is closed before performing the raising and lowering action. This effectively prevents the range hood from continuing to raise and lower when the cabinet door is open, which could potentially injure the user, thereby improving the safety of equipment operation.

[0018] In some implementations, the impact detection device includes a mounting box, an elastic mechanism, and a vibration detection component. The mounting box has an opening, the vibration detection component is disposed in the opening, the elastic mechanism is located inside the mounting box, the elastic mechanism connects the vibration detection component and the mounting box, and the vibration detection component can move relative to the mounting box along the elastic deformation direction of the elastic mechanism.

[0019] In this implementation, the impact detection device includes a mounting box, so that the impact detection device can be installed as a whole on the upper housing; the impact detection device includes an elastic mechanism, so that the vibration detection component can abut against the inner side of the cabinet door, so that when the user knocks on the cabinet door, the vibration detection component can collect the vibration of the cabinet door.

[0020] In some implementations, the position detection device includes at least two position detection components, each supported on the mounting box, and distributed on the left and right sides of the protective cover.

[0021] In this implementation, the position detection device is mounted on the impact detection device, so that the position detection device and the impact detection device can be installed as a whole on the upper housing, making assembly convenient.

[0022] In some implementations, the tapping detection device is mounted on the front side of the liftable smoke hood body.

[0023] In this implementation, a knock detection device is installed on the front side of the liftable range hood body to allow the user to control the lifting of the range hood by knocking on the cabinet door.

[0024] In some implementations, the tapping detection device is integrated inside the control panel of the liftable range hood body.

[0025] In this implementation, by integrating the tapping detection device into the control panel, the overall appearance of the range hood is not affected while still being able to collect tapping signals.

[0026] In some implementations, the tapping detection device is installed inside the stove.

[0027] In this implementation, by installing a tapping detection device inside the stove, the target tapping signal can be collected when the user taps the stove surface.

[0028] In some implementations, the position detection device and the control system are connected via a wired connection; or the position detection device and the control system are connected via a wireless connection.

[0029] In this implementation, the position detection device and the control system are connected by wire to save costs; or they are connected wirelessly to allow for flexible placement of the position detection device.

[0030] In some implementations, the impact detection device and the control system are connected via a wired connection; or the impact detection device and the control system are connected via a wireless connection.

[0031] In this implementation, the impact detection device and the control system are connected by wire to save costs; or they are connected wirelessly to allow for flexible placement of the impact detection device. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a structural schematic diagram of a range hood from the rear view provided in some embodiments of this application; Figure 2 This is a schematic diagram illustrating the relative positional relationship between a range hood and a cabinet door, provided in some embodiments of this application. Figure 3 Flowcharts of control methods provided in some embodiments of this application; Figure 4 This is a structural schematic diagram of a range hood from the front view provided in some embodiments of this application; Figure 5 This is a schematic diagram of the structure of the position detection device and the impact detection device provided in some embodiments of this application; Figure 6Cross-sectional schematic diagrams of position detection devices and impact detection devices provided in some embodiments of this application; Figure 7 A schematic diagram of a control panel integrating a tapping detection device provided in some embodiments of this application; Figure 8 An exploded view of the control panel and the impact detection device provided in some embodiments of this application.

[0034] The following are the labeling elements in the figure: 100 - Range hood; 200 - Cabinet door; 10 - Liftable range hood body; 20 - Impact detection device; 30 - Position detection device; 11-Upper housing; 12-Lower housing; 13-Control panel; 131-Glass plate; 132-Control panel; 133-Liner plate; 134-Maintenance cover plate; 135-Bracket; 136-Shock-absorbing pad; 21-Mounting box; 22-Elastic mechanism; 23-Vibration detection component; 211-Opening; 221 - First cylindrical section; 222 - Second cylindrical section; 231-Vibration sensor; 232-Protective cover; 233-Mounting plate; 234-Receiving cavity; 2321 - Cover plate section; 2322 - Circumferential section; 2323 - Limiting plate; 31 - Position detection component. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings. The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0036] In the description of this application, it should be understood that the terms "length", "width", "thickness", "top", "bottom", "inner", "outer", "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] To facilitate a clear description of the technical solutions of this application, the terms "first" and "second" are used to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and that the terms "first" and "second" do not necessarily imply that they are different.

[0038] In this application, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0039] In this application, "and / or" is merely a way of describing the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0040] It should be noted that, in this application, the words "in one embodiment," "exemplarily," and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "in one embodiment," "exemplarily," or "for example" should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of words such as "in one embodiment," "exemplarily," and "for example" is intended to present the relevant concepts in a specific manner.

[0041] It should be noted that the technical features of the above embodiments in this application can be combined arbitrarily without conflict. For the sake of brevity, this specification does not describe all possible combinations, but as long as these combinations do not violate the technical spirit of this application, they should all be considered within the scope of this application. Based on the content disclosed in this application, those skilled in the art can reasonably combine, delete, or replace the technical features of the above embodiments according to actual needs, and these modifications and variations all fall within the protection scope of this application.

[0042] It should be noted that before describing the range hood lifting control method and the range hood provided in the embodiments of this application, the relevant technologies will be described first. Current range hood control schemes mainly include touch buttons, mechanical buttons, gesture control, and voice control. For lift-up range hoods that are fully concealed within the cabinet, the touch panel cannot be directly viewed, making touch control difficult to use. For gesture control, since the hood's gesture module faces directly above the stovetop, accidental touches are prone to occur (i.e., the range hood is easily triggered to lift when the user approaches the stovetop area). Unexpected triggering can affect the user experience and may also pose a risk of physical contact. For voice control, kitchen ambient noise can interfere, making it difficult to accurately recognize voice commands.

[0043] To address the aforementioned problems, this application provides a range hood lifting control method and a range hood, offering a novel range hood lifting control approach to overcome the shortcomings of the aforementioned control schemes. The embodiments of this application are described in detail below with reference to the accompanying drawings.

[0044] Please see Figure 1 and Figure 2 , Figure 1 This is a structural schematic diagram of the range hood 100 provided in some embodiments of this application, viewed from the rear side. Figure 2 This is a schematic diagram illustrating the relative positional relationship between the range hood 100 and the cabinet door 200 according to some embodiments of this application. It should be noted that before describing the range hood lifting control method provided in the embodiments of this application, the range hood 100 is described first. It is worth noting that the range hood 100 described below is only an example; that is, the range hood lifting control method provided in the embodiments of this application is not limited to the range hood 100 described below.

[0045] For ease of description, please refer to Figure 1 and Figure 2 In this embodiment, the length direction of the range hood 100 is defined as the X-axis, the width direction as the Y-axis, and the height direction as the Z-axis. The X-axis, Y-axis, and Z-axis are all perpendicular to each other. Furthermore, this embodiment uses directional terms such as "up," "down," "left," "right," "front," and "back" to describe the range hood 100, with the orientation primarily based on the location of the range hood 100 within its surroundings. Figure 1 and attached Figure 2 The orientation of the display is described as follows: the positive direction of the X-axis is "right", the negative direction of the X-axis is "left", the positive direction of the Y-axis is "front", the negative direction of the Y-axis is "back", the positive direction of the Z-axis is "up", and the negative direction of the Z-axis is "down".

[0046] In some embodiments, see Figure 1 and Figure 2 The range hood 100 includes an upper housing 11 and a lower housing 12, which are connected. The upper housing 11 can be fixed to the wall, and the lower housing 12 can move towards or away from the upper housing 11 relative to it. Figure 1 The range hood moves along the Z-axis to achieve a 100° lift.

[0047] It is understandable that when the range hood 100 is at its lowest height, the range hood 100 can be considered to be in the closed state, and the fan inside the range hood 100 is also in the off state; when the lower housing 12 descends relative to the upper housing 11 to the required working height, the range hood 100 can be considered to be in the open state, and the fan inside the range hood 100 can be either in the on state or in the off state.

[0048] Understandably, when the range hood 100 is off, it can be concealed within the cabinet, thus improving the overall aesthetics of the kitchen. Please see [link / reference]. Figure 2 The diagram shows cabinet door 200, which is the door structure of the cabinet. Cabinet door 200 can be opened, and after opening cabinet door 200, the range hood 100 hidden inside the cabinet can be seen.

[0049] Please see Figure 2 , Figure 2 The illustration shows that the cabinet door 200 is located on one side of the range hood 100 along the direction indicated by the Y-axis arrow, that is, the cabinet door 200 is located on the front side of the range hood 100. Of course, the position of the cabinet door 200 is not limited to being located only on the front side of the range hood 100. In other examples, the cabinet door 200 may also be located on the left and / or right side of the range hood 100. The specific orientation of the cabinet door 200 relative to the range hood 100 is not specifically limited in this embodiment.

[0050] Regarding the cabinet door 200, it can be configured as a double door or a flip-up door, etc., and this application embodiment does not specifically limit it. Additionally, when the cabinet door 200 is a double door, please refer to... Figure 2 The front of the range hood 100 faces the two cabinet doors 200.

[0051] When the range hood 100 is in operation, the lower housing 12 descends to a certain height and is exposed outside the cabinet, making the liquid inlet on the lower housing 12 closer to the stove, which is the source of the oil fumes. This effectively shortens the upward journey of the oil fumes, thereby significantly improving the oil fume capture efficiency and reducing the possibility of oil fumes spreading to other areas of the kitchen.

[0052] The fact that the lower housing 12 can move relative to the upper housing 11 can be understood as the range hood 100 also including a lifting drive mechanism. This lifting drive mechanism is mounted on the upper housing 11 and connected to the lower housing 12. When the lifting drive mechanism moves in the forward direction, it can drive the lower housing 12 to move away from the upper housing 11 relative to it, thus lowering the lower housing 12. When the lifting drive mechanism moves in the reverse direction, it can drive the lower housing 12 to move closer to the upper housing 11 relative to it, thus raising the lower housing 12. The specific structure of the lifting drive mechanism is not specifically limited in this embodiment; any mechanism that can drive the lower housing 12 to move relative to the upper housing 11 using relevant technologies is acceptable.

[0053] The lifting control method for a range hood provided in the embodiments of this application will now be described with reference to the accompanying drawings.

[0054] Please see Figure 3 , Figure 3 A flowchart of a control method provided for some embodiments of this application.

[0055] This application provides a method for controlling the lifting of a range hood, including: The target knocking signal is detected when the range hood 100, cabinet, or stove is knocked. In response to the detection of a target knocking signal, when the cabinet door 200 is closed, the range hood 100 is controlled to perform a lifting action, so that the cabinet door 200 completely or partially blocks the range hood 100 when it is closed.

[0056] The target tapping signal refers to the physical signal generated by the user tapping the range hood 100 or a nearby structure (such as a cabinet or stove) and intended to trigger the operation of the range hood 100. This signal is usually collected and identified by sensors.

[0057] For acquiring the target tapping signal, for example, a sensor that can collect vibration signals can be installed on the range hood 100, cabinet, or stove. When the user taps the target tapping surface (the target tapping surface refers to the surface on which the vibration generated when the user taps can be collected by the sensor that can collect vibration signals), the generated vibration will be collected by the sensor and converted into an electrical signal, thereby realizing the acquisition of the target tapping signal.

[0058] In some examples, a sensor capable of capturing vibration signals can be mounted on the upper housing 11. Since the upper housing 11 is hidden inside the cabinet, the cabinet door 200 or other locations on the cabinet besides the cabinet door 200 can be tapped, specifically determined by the installation position of the sensor capable of capturing vibration signals on the upper housing 11. The vibration generated during the tapping will be collected by the sensor; or, in other examples, when the range hood 100 includes a control panel 13 ( Figure 1 (Not shown in the diagram), the sensor that takes vibration signals can also be integrated into the control panel 13.

[0059] In some examples, a sensor capable of capturing vibration signals can be placed inside the stove. This example does not specify the exact installation method, as long as the sensor can capture the vibration generated when the stove is struck.

[0060] For sensors that can collect vibration signals, the connection between the sensor and the control system of the range hood 100 can be wired, or the connection can be wireless. For example, the sensor can transmit the collected signals to the control system of the range hood 100 via wireless communication, network, or Bluetooth.

[0061] In the range hood lifting control method provided in this application embodiment, after confirming the acquisition of the target knock signal, it is determined whether the cabinet door 200 is in a closed state based on the target knock signal. That is, after receiving the target knock signal, the range hood 100 needs to determine the state of the cabinet door 200. This determination can be accomplished by a position sensor installed on the cabinet door 200 or the range hood 100.

[0062] For example, a microswitch or limit switch can be used. When the cabinet door 200 is closed, the switch is pressed, thereby outputting a signal indicating that the door is closed; when the cabinet door 200 is open, the switch is released by its own elastic component, thereby outputting a signal indicating that the door is open. Alternatively, in other examples, a distance sensor, pressure sensor, or Hall sensor can be used to detect the open / closed state of the cabinet door 200. It is understood that the specific structure of the position sensor used to detect whether the cabinet door 200 is closed is not limited in this application embodiment, as long as it can detect the open / closed state of the cabinet door 200.

[0063] For the sensor that collects the opening and closing status of the cabinet door 200, the sensor can be set to be wired to the control system of the range hood 100, or it can be set to be wirelessly connected to the control system of the range hood 100. That is, the sensor that collects the opening and closing status of the cabinet door 200 can transmit the collected signal to the control system of the range hood 100 through wireless communication, network or Bluetooth.

[0064] In the range hood lifting control method provided in this application embodiment, if it is determined that the cabinet door 200 is in a closed state, the range hood 100 is controlled to perform a lifting action. This can be understood as follows: when it is confirmed that the cabinet door 200 is in a closed state, the control system of the range hood 100 sends a command to control the range hood 100 to perform a lifting action; when it is confirmed that the cabinet door 200 is in an open state, the range hood 100 does not perform a lifting action.

[0065] The lifting action of the range hood 100 can be configured to be performed by an electric lifting mechanism. For example, the range hood 100 can be lifted by a drive motor driving a lead screw or a rack and pinion mechanism. This action can be the range hood 100 lowering from the hidden position to the working position or rising from the working position to the hidden position, depending on the current initial position of the range hood 100.

[0066] It is worth noting that in this embodiment, when a target knocking signal is received, it is first determined whether the cabinet door 200 is closed. Only after confirming that the cabinet door 200 is closed is the range hood 100 controlled to perform the lifting and lowering action. This is to prevent the range hood 100 from continuing to perform the lifting and lowering action when the cabinet door 200 is opened. This is because if the lower housing 12 of the range hood 100 moves relative to the upper housing 11 when the user's hand is inside the cabinet, it may cause an impact or injury to the user's hand. For example, when the user's hand is inside the cabinet and the lower housing 12 moves upward relative to the upper housing 11, the lower housing 12 may impact or trap the user's hand in the gap between the lower housing 12 and the upper housing 11, causing injury to the user's hand. Similarly, when the user's hand is inside the cabinet and the lower housing 12 moves downward relative to the upper housing 11, the lower housing 12 may impact the user's hand, causing injury to the user's hand. Therefore, in this embodiment of the application, before controlling the range hood 100 to perform the lifting action, it is first confirmed whether the cabinet door 200 is in the closed state.

[0067] In summary, the range hood lifting control method provided in this application embodiment uses a combination of tapping signals to control the lifting of the range hood 100. Compared to traditional touch button control, this solution eliminates the need for a visible control panel on the surface of the range hood 100, thus better supporting a fully concealed design and enhancing the overall aesthetics of the kitchen. Compared to wave-control solutions, tapping actions are generally more explicit and conscious, effectively reducing the possibility of accidental activation of the range hood 100 due to accidental touches. Furthermore, in a kitchen environment, tapping signal detection is generally more stable and reliable than voice recognition, avoiding inaccurate recognition due to environmental noise interference. Additionally, in this application embodiment, by confirming whether the cabinet door 200 is closed before performing the lifting action, the possibility of the range hood 100 continuing to perform the lifting action when the cabinet door 200 is open, which could potentially injure the user, is effectively prevented, thereby improving the safety of equipment operation.

[0068] In some embodiments, the method further includes: if the cabinet door 200 is detected to be open during the lifting and lowering operation of the range hood 100, then the range hood 100 is controlled to stop lifting and lowering.

[0069] When the range hood 100 performs a lifting action after determining that the cabinet door 200 is in a closed state, if the cabinet door 200 is accidentally opened and the range hood 100 does not stop performing the lifting action, there is still a possibility of injury to the user. Therefore, in this embodiment of the application, if the range hood 100 detects that the cabinet door 200 is in an open state during the lifting action, it controls the range hood 100 to stop the lifting action.

[0070] This can be understood as follows: during the lifting and lowering action of the range hood 100, the open / closed status of the cabinet door 200 needs to be continuously monitored. When the cabinet door 200 is detected to be open, the range hood 100 can be immediately triggered to stop. Specifically, when the range hood 100 begins to lift and lower based on a target tap signal and after confirming that the cabinet door 200 is closed, the sensor that collects the open / closed status of the cabinet door 200 can continuously acquire the current status of the cabinet door 200. If, during the lifting and lowering process of the range hood 100, the sensor indicates that the cabinet door 200 has changed from a closed state to an open state, the control system within the range hood 100 will immediately send a stop command to the actuator driving the lifting and lowering of the range hood 100, thereby interrupting the ongoing lifting and lowering action to ensure user safety.

[0071] In this embodiment of the application, by limiting the range hood 100 to lifting and lowering, if the cabinet door 200 is detected to be open during the lifting and lowering process, the range hood 100 is controlled to stop lifting and lowering, providing users with a safer and more reliable user experience.

[0072] As described in some embodiments above, if the cabinet door 200 is detected to be open during the lifting and lowering operation of the range hood 100, the range hood is controlled to stop the lifting and lowering operation. However, simply stopping the lifting and lowering operation may not effectively and promptly inform the user of potential dangers. The user may not understand the reason for the stop and may mistakenly believe that the range hood 100 is malfunctioning, thus affecting the user experience. Based on this, in some embodiments, if the cabinet door 200 is detected to be open during the lifting and lowering operation of the range hood 100, an alarm indication is output.

[0073] Alarm indicators are used to send alert messages to users through various means such as sound, light, and vibration to alert them to abnormal situations or potential dangers. For example, they can be triggered by a buzzer emitting continuous or intermittent alarm sounds, such as three beeps, or by indicator lights flashing or changing colors to provide visual warnings.

[0074] In some scenarios, during the lifting and lowering movement of the range hood 100, the open / closed status of the cabinet door 200 needs to be continuously monitored. When the cabinet door 200 is detected to be open, the control system within the range hood 100 will respond immediately. On one hand, it will control the range hood 100 to stop its current lifting and lowering movement to avoid potential collisions or injuries. On the other hand, the control system will simultaneously trigger an alarm indicator, issuing an alert to the user through a preset alarm method. This dual-response mechanism ensures that when the cabinet door 200 is detected to be open, not only is the lifting and lowering movement of the range hood 100 stopped in a timely manner, but the user also receives immediate and clear feedback, thereby improving the customer experience.

[0075] In this embodiment of the application, if the cabinet door 200 is detected to be open during the lifting and lowering process of the range hood 100, an alarm indication is output, so that the user can quickly perceive the abnormal situation and clearly understand the reason why the range hood 100 stops operating, thereby avoiding improper operation by the user due to a lack of understanding of the situation.

[0076] In some embodiments, the duration of the alarm indication can be set to a preset time, after which the alarm indication will stop; or, in other embodiments, if the cabinet door 200 is detected to be in a closed state, the output of the alarm indication will be stopped.

[0077] For example, if the range hood 100 detects that the cabinet door 200 is open during the lifting and lowering process, it will control and output an alarm indication. When the alarm indication exceeds a set time, such as 5 seconds, the alarm indication will stop being output.

[0078] For example, if the range hood 100 detects that the cabinet door 200 is open during the lifting and lowering process, it will control and output an alarm indicator; if it detects that the cabinet door 200 is closed, it will control and stop outputting the alarm indicator.

[0079] It should be noted that in some embodiments described above, if the cabinet door 200 is detected to be open during the lifting and lowering operation of the range hood 100, the range hood 100 is controlled to stop lifting and lowering. In some embodiments, if the cabinet door 200 is detected to be closed, the range hood 100 is controlled to continue lifting and lowering.

[0080] Specifically, during the lifting and lowering action of the range hood 100, the opening and closing status of the cabinet door 200 needs to be continuously monitored. When the cabinet door 200 is detected to be in the open state, the range hood 100 can be immediately triggered to stop. If the cabinet door 200 is detected to be in the closed state, the range hood 100 is controlled to continue to perform the lifting and lowering action.

[0081] For example, when the range hood 100 begins to rise and fall after receiving a target tap signal and confirming that the cabinet door 200 is closed, a sensor that collects the open / closed state of the cabinet door 200 can continuously acquire the current state of the cabinet door 200. If, during the rising and falling of the range hood 100, the sensor indicates that the cabinet door 200 has changed from a closed state to an open state, the control system inside the range hood 100 will send a stop command to the actuator that drives the range hood 100 to rise and fall, thereby interrupting the ongoing rising and falling action. When the sensor indicates that the cabinet door 200 has changed from an open state to a closed state, the control system inside the range hood 100 will send an action command to the actuator that drives the range hood 100 to rise and fall, thereby controlling the range hood 100 to continue performing the rising and falling action.

[0082] In this embodiment, by setting the range hood 100 to continue lifting and lowering if the cabinet door 200 is detected to be closed, the user experience can be improved.

[0083] It should be noted that in some examples, when the range hood 100 stops operating because the cabinet door 200 is detected to be open during the lifting and lowering process, if the cabinet door 200 is detected to be closed within a set time (e.g., the set time can be set to 1 minute), the range hood 100 will continue to operate. If the set time is exceeded (e.g., after 1 minute), even if the cabinet door 200 is detected to be closed, the range hood 100 will not continue to operate.

[0084] It should be noted that some embodiments described above indicate that during the lifting and lowering process of the range hood 100, if the cabinet door 200 is detected to be open, the range hood 100 is controlled to stop lifting and lowering; if the cabinet door 200 is detected to be closed, the range hood 100 is controlled to continue lifting and lowering. In other embodiments, the control method for stopping the lifting and lowering process of the range hood 100 if the cabinet door 200 is detected to be open, and then resuming the operation, is as follows: A target tapping signal is acquired; based on the target tapping signal, it is determined whether the cabinet door 200 is closed; if the cabinet door 200 is determined to be closed, the range hood 100 is controlled to lift and lower.

[0085] In other words, if the range hood 100 stops lifting because it detects that the cabinet door 200 is open during the lifting and lowering process, and the user needs to tap the target surface to continue lifting and lowering the range hood 100, the control system will determine whether the cabinet door 200 is closed based on the tapping signal. If the cabinet door 200 is determined to be closed, the control system will then control the range hood 100 to continue lifting and lowering the range hood 100.

[0086] In some embodiments, when the range hood 100 suddenly stops descending and is in the intermediate position, the method further includes: When the cabinet door 200 is closed and a target knocking signal is detected, a first time interval is determined between the currently detected target knocking signal and the adjacent previous target knocking signal. If the first time interval is less than a first preset value, the descent action continues. If the time interval is not less than the first preset value, the ascending action is controlled to keep the range hood 100 in the closed state.

[0087] For example, in some examples, the range of the first preset value can be set to no more than 5 minutes, such as 1 minute, 2 minutes, or 3 minutes.

[0088] Specifically, when a target knocking signal is detected and the range hood 100 is lowered, if it does not stop at the target height (at which point the range hood 100 is in the middle position), when the target knocking signal is detected again, the time interval between the detected target knocking signal and the adjacent previous target knocking signal is determined as the first time interval. If the first time interval is less than the first preset value, the lowering action continues; if the time interval is not less than the first preset value, the rising and closing action is performed.

[0089] In this embodiment, by limiting the range hood 100 to a mid-position during descent, and then detecting a target tapping signal, the range hood 100's movement is controlled according to a first time interval. If a target tapping signal is detected again and the first time interval is relatively short, it is highly likely that the user did not intentionally stop the range hood 100 from descending. The user may have tapped it repeatedly, accidentally, or accidentally opened the cabinet door 200, causing the range hood 100 to stop. In this case, the user taps it quickly to make the range hood 100 continue descending, making the first time interval relatively short. In other words, a short first time interval indicates that the user wants the range hood 100 to continue descending. The second detection... When a target tapping signal is detected and the first time interval is relatively long, it is more likely that the user intentionally stops the range hood 100 from operating. For example, if the user taps the target tapping surface before the range hood 100 has descended to the target height, causing the range hood 100 to be in the middle position, the user may prefer that the range hood 100 operates at its current height. When the user finishes using the range hood 100 and intends to raise it to the off state, if the target tapping signal is detected again and the first time interval is relatively long, the range hood 100 will perform the rising and closing action. This is the method provided in the embodiments of this application, which makes the control process more user-friendly and improves the user experience.

[0090] It should be noted that when the range hood 100 suddenly stops in the middle position while performing the rising action, and the cabinet door 200 is in the closed state and a target knocking signal is detected, the range hood 100 is controlled to rise so that the range hood 100 is in the closed state.

[0091] In some embodiments, detecting a target tapping signal includes: identifying whether a second time interval between two consecutive tapping signals is less than a second preset value, wherein the tapping signal is generated when a range hood, cabinet, or stove is tapped; if the second time interval between two consecutive tapping signals is less than the second preset value, then it is determined that a target tapping signal has been detected.

[0092] The purpose of identifying whether two consecutive tap signals are less than a second preset value is to determine whether the user has performed an intentional, continuous tapping operation, rather than a single, accidental tap. For example, this can be achieved by using a timer to record the duration of each detected tap signal and calculating the time difference between it and the previous tap signal.

[0093] The second preset value is a time threshold that can be set according to user habits, device response speed, and the need to avoid accidental triggering. For example, it can be set to 0.5 seconds, 1 second, or 2 seconds. It can also be configurable, allowing users to adjust it through the settings interface or physical buttons.

[0094] By introducing a second time interval judgment for two consecutive tap signals, single, accidental tap signals are effectively filtered out. When the system detects the first tap signal, it does not immediately regard it as a valid operation command. Only when a second tap signal is detected within a preset second time interval will the system recognize these two consecutive tap signals as target tap signals with clear user intent.

[0095] In this embodiment of the application, by setting a second time interval between two consecutive tapping signals to be less than a second preset value, it is determined that a target tapping signal has been detected, thereby improving the reliability of the range hood 100 control and significantly enhancing the user experience.

[0096] In some embodiments, when the cabinet door 200 is closed, controlling the range hood 100 to perform a lifting action includes: when the cabinet door 200 is closed and the range hood 100 is closed, and when the cabinet door 200 is closed and the range hood is open, controlling the range hood 100 to perform a lifting action.

[0097] Regarding the closed and open states of the range hood 100, as described above, when the range hood 100 is at its lowest height along the vertical direction, the state of the range hood 100 can be called the closed state; when the lower housing 12 descends relative to the upper housing 11 to the required working height, the state of the range hood 100 can be called the open state.

[0098] Controlling the range hood 100 to perform a lowering action means that after determining that the range hood 100 is in the off state, the control system issues a command to move the lower housing 12 down to the working height. This usually involves sending a control signal to the motor (such as a stepper motor or DC motor) that drives the range hood 100 to rise and fall, so that it rotates in a preset direction until the lower housing 12 reaches the preset height value.

[0099] Controlling the range hood 100 to perform an upward movement means that after determining that the range hood 100 is in the open state, the control system issues a command to move the upper housing 11 upward to the closed state. This usually involves sending a reverse control signal to the motor that drives the range hood 100 to move up and down, so that the lower housing 12 moves upward until it reaches the preset height value.

[0100] This can be understood as follows: after receiving the target knock signal and confirming that the cabinet door 200 is closed, it does not simply perform a general lifting action, but further introduces the judgment of the current position of the range hood 100. Specifically, the control system first determines whether the range hood 100 is in a closed or open state. If it is determined that the range hood 100 is currently in a closed state, the system will control the range hood 100 to perform a lowering action; conversely, if it is determined that the range hood 100 is currently in a closed state, the system will control the range hood 100 to perform a raising action.

[0101] In this embodiment of the application, when it is determined that the range hood 100 is in the closed state, the range hood 100 is controlled to perform a lowering action; when it is determined that the range hood 100 is in the open state, the range hood 100 is controlled to perform an raising action. The system can intelligently determine and execute the corresponding raising or lowering action according to the current position of the range hood 100, thereby improving the intelligence level of the lifting control of the range hood 100 and the user experience.

[0102] In some embodiments, when the range hood 100 is in the off state, the target knocking signal includes at least two types, and the range hood lifting control method further includes: Acquire the target tapping signal and determine the type of the target tapping signal; Based on the target knocking signal, determine whether the cabinet door 200 is in the closed state; If it is determined that the cabinet door 200 is closed, the height at which the range hood 100 descends is controlled according to the type of target knocking signal.

[0103] For example, the target knocking signal can be set to include two types, namely a first target knocking signal and a second target knocking signal. The control method specifically includes: acquiring the target knocking signal and determining the type of the target knocking signal; determining whether the cabinet door 200 is closed based on the target knocking signal; if the cabinet door 200 is determined to be closed and the target knocking signal is determined to be the first target knocking signal, then controlling the range hood 100 to descend to a first height; if the cabinet door 200 is determined to be closed and the target knocking signal is determined to be the second target knocking signal, then controlling the range hood 100 to descend to a second height, wherein the height values ​​of the first height and the second height are different.

[0104] Regarding the first and second target knocking signals, for example, two consecutive knocking signals can be set as the first target knocking signal, and three consecutive knocking signals can be set as the second target knocking signal; or, in other examples, different types of target knocking signals can be distinguished by knocking on different locations. For example, at least one sensor capable of collecting vibration signals can be set on the upper housing 11, and at least one sensor capable of collecting vibration signals can be set inside the stove. When the user knocks on the cabinet door 200, the sensor capable of collecting vibration signals set on the upper housing 11 collects the target knocking signal, and the control system can use it as the first target knocking signal; when the user knocks on the stove, the sensor capable of collecting vibration signals set inside the stove collects the target knocking signal, and the control system can use it as the second target knocking signal.

[0105] It should be noted that the example above illustrates two types of target tapping signals. However, the types of target tapping signals are not limited to two; they can also include other quantities besides two.

[0106] In this embodiment, the height at which the range hood 100 descends is controlled based on the type of target tapping signal. This allows the user to determine the descending height of the range hood 100 according to the amount of cooking fumes. For example, when there are relatively many cooking fumes, the user can choose to lower the range hood 100 to a relatively larger height, and when there are relatively few cooking fumes, the user can choose to lower the range hood 100 to a relatively smaller height, so that the range hood 100 can better adapt to the diverse cooking scenarios in modern kitchens.

[0107] Please see Figure 4 , Figure 4 This is a structural schematic diagram of the range hood 100 provided in some embodiments of this application from a front view. The range hood 100 provided in the embodiments of this application will be further described below with reference to the accompanying drawings.

[0108] Please see Figure 4 The range hood 100 provided in this application includes a liftable range hood body 10, a knock detection device 20, and a position detection device 30. The liftable range hood body 10 includes a control system. The knock detection device 20 and the position detection device 30 are both electrically connected to the control system. The knock detection device 20 is used to collect target knock signals, and the position detection device 30 is used to detect the open / closed state of the cabinet door 200. The control system is configured to execute the lifting control method provided in any of the above embodiments.

[0109] Regarding the height-adjustable range hood body 10, please refer to some examples. Figure 4The liftable range hood body 10 includes an upper box 11 and a lower box 12. The upper box 11 and the lower box 12 are connected. The upper box 11 can be fixed to the wall. The lower box 12 can move towards or away from the upper box 11 relative to the upper box 11 to realize the lifting action of the range hood 100.

[0110] Regarding the lower housing 12's ability to move relative to the upper housing 11, it can be understood that the range hood 100 also includes a lifting drive mechanism. This lifting drive mechanism is mounted on the upper housing 11 and connected to the lower housing 12. When the lifting drive mechanism moves in the forward direction, it can cause the lower housing 12 to move away from the upper housing 11 relative to it, thus lowering the lower housing 12. When the lifting drive mechanism moves in the reverse direction, it can cause the lower housing 12 to move closer to the upper housing 11 relative to it, thus raising the lower housing 12. The specific structure of the lifting drive mechanism is not specifically limited in this embodiment; any relevant technology can be used to achieve the ability to move the lower housing 12 relative to the upper housing 11. When the range hood 100 is in the closed state, it can be hidden inside the cabinet, thus improving the overall aesthetics. When the range hood 100 is in the open state, the lower housing 12 can descend relative to the upper housing 11 to extend out of the cabinet.

[0111] In some examples, the tapping detection device 20 may be installed on at least one of the liftable range hood body 10, cabinet, or stove. When a user taps the target tapping surface (the target tapping surface refers to the surface on which the vibration generated when the user taps can be detected by the tapping detection device 20), the generated vibration is collected by the tapping detection device 20 and converted into an electrical signal, which is then used to form a target tapping signal.

[0112] For example, please see Figure 4 The tapping detection device 20 can be installed on the upper housing 11. Since the upper housing 11 is hidden inside the cabinet, it can be tapped on the cabinet door 200 or other parts of the cabinet except the cabinet door 200, depending on the installation position of the tapping detection device 20 on the upper housing 11. The vibration generated during tapping will be collected by the tapping detection device 20. When the tapping detection device 20 is installed on the upper housing 11, it can be wired to the control system of the range hood 100, or it can be wirelessly connected to the control system of the range hood 100. For example, the tapping detection device 20 can transmit the collected signal to the control system of the range hood 100 via wireless communication, network, or Bluetooth.

[0113] For example, the tapping detection device 20 can be installed on a cabinet or stovetop. By tapping a corresponding location on the cabinet or stovetop, the resulting vibration will be collected by the tapping detection device 20. When the tapping detection device 20 is installed on the cabinet or stovetop, it can be set to wirelessly connect to the control system of the range hood 100. That is, the tapping detection device 20 can transmit the collected signals to the control system of the range hood 100 through wireless communication, network, or Bluetooth.

[0114] It is understandable that setting the tapping detection device 20 to be wired to the control system of the range hood 100 is to save costs; setting the tapping detection device 20 to be wireless to the control system of the range hood 100 allows for flexible setting of the installation position of the tapping detection device 20.

[0115] In some examples, at least two tapping detection devices 20 may be provided, each tapping detection device 20 corresponding to a target tapping surface. Thus, by providing at least two tapping detection devices 20, at least two target tapping surfaces can be formed, giving the user more options for tapping locations.

[0116] For example, in some specific examples, two knock detection devices 20 can be set, one of which is set on the upper box 11 and the other is set inside the stove. The user can knock on the cabinet door 200 to trigger the knock detection device 20 on the upper box 11, or knock on the stove to trigger the knock detection device 20 inside the stove.

[0117] When there are at least two impact detection devices 20 and each impact detection device 20 corresponds to a different target impact surface, in some examples, the target impact signal collected by one impact detection device 20 can be used as the first target impact signal, and the target impact signal collected by the other impact detection device 20 can be used as the second target impact signal. In response to the first target impact signal, the lower housing 12 can be controlled to descend to a first height, and in response to the second target impact signal, the lower housing 12 can be controlled to descend to a second height. The first height and the second height are different. For example, when there is a lot of oil smoke, the user can choose to lower the height of the range hood 100 by a relatively large amount, and when there is a relatively little oil smoke, the user can choose to lower the height of the range hood 100 by a relatively small amount, so that the range hood 100 can better adapt to the diverse cooking scenarios of modern kitchens; or in other examples, in response to the target impact signals collected by each impact detection device 20, the lower housing 12 can be controlled to descend to the same height.

[0118] The position detection device 30 is used to detect whether the cabinet door 200 is in a closed state. In some examples, the position detection device 30 can be set as a micro switch or a limit switch. When the cabinet door 200 is closed, the switch is pressed, thereby outputting a signal indicating that the door is closed; when the cabinet door 200 is open, the switch is released under the action of its own elastic component, thereby outputting a signal indicating that the door is open. Alternatively, in other examples, the position detection device 30 can also be set as a distance detection sensor, pressure sensor, or Hall sensor, etc. It is worth noting that the position detection device 30 is not specifically limited in this application embodiment, as long as it can detect the open / closed state of the cabinet door 200.

[0119] For further explanation, please refer to [link / reference]. Figure 4 For cabinets that include two cabinet doors 200, a position detection device 30 can be provided, which includes two position detection components 31. The two position detection components 31 are used to detect the open / closed status of the two cabinet doors 200 respectively.

[0120] Regarding the connection between the position detection device 30 and the control system, in some examples, the position detection device 30 and the control system of the range hood 100 can be connected via a wired connection, or they can be connected wirelessly. For example, the position detection device 30 can transmit the collected signals to the control system of the range hood 100 via wireless communication, network, or Bluetooth. It is understood that setting the position detection device 30 to be connected via a wired connection saves costs; setting the position detection device 30 to be connected wirelessly allows for flexible placement of the installation location of the position detection device 30.

[0121] In certain scenarios, when a user is preparing to cook, they can gently tap the cabinet door 200 or the stovetop. The tapping detection device 20 can collect the target tapping signal. After the position detection device 30 confirms that the cabinet door 200 is closed, the control system drives the lower housing 12 to move away from the upper housing 11 relative to the upper housing 11, thus lowering the range hood 100. If the position detection device 30 detects that the cabinet door 200 is open during the descent, the control system immediately stops the descent, effectively preventing the range hood 100 from continuing to descend when the cabinet door 200 is open, which could potentially injure the user. In case of a user's inability to perform cooking, the user can gently knock on the cabinet door 200 or the stovetop. The knock detection device 20 can collect the target knock signal. After the position detection device 30 confirms that the cabinet door 200 is closed, the control system drives the lower housing 12 to move towards the upper housing 11 relative to the upper housing 11, thereby raising the range hood 100. If the position detection device 30 detects that the cabinet door 200 is open during the raising process, the control system immediately stops the raising action, effectively preventing the range hood 100 from continuing to perform the raising action when the cabinet door 200 is open, which may injure the user.

[0122] In summary, this embodiment of the application uses a combination of tapping signals to control the lifting and lowering of the range hood 100. Compared to traditional touch button control, this solution eliminates the need for a visible control panel on the surface of the range hood 100, thus better supporting a fully concealed design and enhancing the overall aesthetics of the kitchen. Compared to wave-control solutions, tapping actions are generally more explicit and conscious, effectively reducing the possibility of accidental activation of the range hood 100 due to accidental touches. Furthermore, in a kitchen environment, tapping signal detection is generally more stable and reliable than voice recognition, avoiding inaccurate recognition due to environmental noise interference. Additionally, in this embodiment, the position detection device 30 detects the open / closed state of the cabinet door 200, providing a prerequisite for confirming whether the cabinet door 200 is closed before performing the lifting and lowering action. This effectively prevents the range hood 100 from continuing to perform the lifting and lowering action when the cabinet door 200 is open, which could potentially injure the user, thereby improving the safety of equipment operation.

[0123] In some embodiments, see Figure 4 The position detection device 30 can be mounted on the impact detection device 20; or, in other embodiments, the position detection device 30 and the impact detection device 20 can be set independently.

[0124] In this embodiment, the position detection device 30 is mounted on the impact detection device 20, so that the position detection device 30 and the impact detection device 20 can be mounted as a whole on the upper housing 11, making assembly convenient. By limiting the position detection device 30 and the impact detection device 20 to be set independently, the positions of the position detection device 30 and the impact detection device 20 can be flexibly set so that their installation positions do not restrict each other.

[0125] In some embodiments, see Figure 4 The position detection device 30 includes at least two position detection components 31, each of which is disposed on the tapping detection device 20. At least one position detection component 31 is used to detect the opening and closing status of the left cabinet door 200, and at least one position detection component 31 is used to detect the opening and closing status of the right cabinet door 200.

[0126] Please see Figures 5-6 , Figure 5 This is a schematic diagram of the structure of the position detection device 30 and the tapping detection device 20 provided in some embodiments of this application. Figure 6 This is a cross-sectional schematic diagram of the position detection device 30 and the impact detection device 20 provided in some embodiments of this application. It should be noted that the following mainly uses the example of the impact detection device 20 being installed in the upper housing 11 to further define the impact detection device 20.

[0127] In some embodiments, see Figure 6 The impact detection device 20 includes a mounting box 21, an elastic mechanism 22, and a vibration detection component 23. The mounting box 21 is used to install on the upper housing 11. An opening 211 is provided on the side of the mounting box 21 away from the upper housing 11. The vibration detection component 23 is disposed in the opening 211. The elastic mechanism 22 is located inside the mounting box 21. The elastic mechanism 22 connects the vibration detection component 23 and the mounting box 21. The vibration detection component 23 can move relative to the mounting box 21 along the elastic deformation direction of the elastic mechanism 22.

[0128] In this embodiment, the impact detection device 20 includes a mounting box 21, so that the impact detection device 20 can be installed as a whole on the upper housing 11; the impact detection device 20 includes an elastic mechanism 22, so that the vibration detection component 23 abuts against the inner side of the cabinet door 200, so that when the user knocks on the cabinet door 200, the vibration detection component 23 can collect the vibration of the cabinet door 200.

[0129] In some embodiments, see Figure 6The vibration detection component 23 includes a vibration sensor 231, a protective cover 232, and a mounting plate 233. The mounting plate 233 is connected to the elastic mechanism 22. The protective cover 232 is located on the side of the mounting plate 233 away from the elastic mechanism 22, and the protective cover 232 and the mounting plate 233 together form a receiving cavity 234. The vibration sensor 231 is located in the receiving cavity 234.

[0130] Regarding the vibration sensor 231, it is a device that converts mechanical vibration, impact, displacement, etc., into electrical signals. When the upper cabinet 11 is fixed to the wall and hidden inside the cabinet, the protective cover 232 abuts against the inner side of the cabinet door 200 under the action of the elastic mechanism 22. When the user knocks on the cabinet door 200, the vibration sensor 231 can collect the vibration of the cabinet door 200.

[0131] In this embodiment, by providing a protective cover 232 to the vibration detection component 23, not only is the aesthetics of the impact detection device 20 improved, but the vibration sensor 231 is also protected. By providing a mounting plate 233 to the vibration detection component 23, the vibration detection component 23 can be connected to the elastic mechanism 22.

[0132] See some examples. Figure 6 The protective cover 232 includes a cover plate portion 2321 and a circumferential portion 2322. The circumferential portion 2322 is annular. The cover plate portion 2321 is disposed at one end of the circumferential portion 2322 along the axial direction. The cover plate portion 2321 is disposed opposite to the mounting plate 233. The end of the circumferential portion 2322 away from the cover plate portion 2321 extends in a direction away from the central axis of the circumferential portion 2322 to form a limiting plate 2323. The limiting plate 2323 is used to contact the inner side of the mounting box 21 to prevent the protective cover 232 from detaching from the mounting box 21.

[0133] In some examples, the cover plate 2321 and the circumferential portion 2322 can be detachably connected, so that when maintenance is required, the cover plate 2321 can be removed from the circumferential portion 2322 to maintain or replace the vibration sensor 231.

[0134] In some examples, the elastic mechanism 22 may be configured as a spring, an elastomer, or other structure that provides elastic force. For example, see [link to relevant documentation]. Figure 6 The elastic mechanism 22 can be provided with a first cylindrical portion 221, a second cylindrical portion 222, and an elastic element ( Figure 6 (The elastic element is not shown in the figure). One end of the first cylindrical part 221 is fixed to the mounting box 21, and one end of the second cylindrical part 222 is inserted into the first cylindrical part 221 and the two are slidably connected. The elastic element is disposed between the first cylindrical part 221 and the second cylindrical part 222. One end of the second cylindrical part 222 is connected to the mounting plate 233.

[0135] Please see Figures 7-8 , Figure 7 This is a schematic diagram of the structure of a control panel 13 integrating a tapping detection device 20, provided in some embodiments of this application. Figure 8 An exploded view of the control panel 13 and the impact detection device 20 provided for some embodiments of this application.

[0136] In some embodiments, the liftable range hood body 10 includes a control panel 13, and a knock detection device 20 can be integrated into the control panel 13.

[0137] In some examples, the control panel 13 is located on the lower housing 12.

[0138] In some scenarios, when the range hood 100 is closed and hidden inside the cabinet, the user can knock on the cabinet door 200. The knock detection device 20 in the control panel 13 collects the target knock signal. When it is determined that the cabinet door 200 is closed, the control system responds to the target knock signal and controls the range hood 100 to perform a lifting or lowering action. Alternatively, in other scenarios, when the range hood 100 is closed, the control panel 13 can be exposed outside the cabinet. The user can knock on the control panel 13. The knock detection device 20 in the control panel 13 collects the target knock signal. When it is determined that the cabinet door 200 is closed, the control system responds to the target knock signal and controls the range hood 100 to perform a lifting or lowering action.

[0139] In this embodiment, by integrating the tapping detection device 20 into the control panel 13, the overall appearance of the range hood 100 is not affected while still being able to collect tapping signals.

[0140] In some embodiments, see Figure 8 The control panel 13 includes a glass plate 131, a backing plate 133, a control board 132, and a bracket 135. The glass plate 131 and the backing plate 133 are arranged opposite to each other. The control board 132 and the impact detection device 20 are arranged between the glass plate 131 and the backing plate 133. The impact detection device 20 is supported by the bracket 135 inside the glass plate 131 and the backing plate 133. The control board 132 is electrically connected to the impact detection device 20 and is used to electrically connect to the control system.

[0141] For the impact detection device 20, it may be configured to include a vibration sensor 231, wherein the vibration sensor 231 is a device that converts mechanical vibration, impact, displacement, etc., into electrical signals. See some examples. Figure 8 The impact detection device 20 can be configured to include at least two vibration sensors 231, each vibration sensor 231 being supported on a corresponding bracket 135.

[0142] See some examples. Figure 8 The control panel 13 also includes a maintenance cover 134. A maintenance port is provided on the liner 133, and the maintenance cover 134 is placed on the liner 133 and covers the maintenance port. The maintenance cover 134 and the liner 133 are detachably connected. The control board 132 and the bracket 135 are mounted on the maintenance cover 134. The maintenance cover 134 facilitates the maintenance and replacement of the control board 132 and the impact detection device 20.

[0143] In some examples, the vibration sensor 231 can be mounted on one bracket 135, or it can be mounted on two brackets 135. For details, please refer to [link to relevant documentation]. Figure 8 The impact detection device 20 includes two vibration sensors 231, which are located on the left and right sides of the control board 132, respectively. Please refer to [link / reference]. Figure 8 The vibration sensor 231 on the left is supported on two brackets 135, and the vibration sensor 231 on the right is supported on one bracket 135.

[0144] See some examples. Figure 8 The control panel 13 also includes a shock-absorbing pad 136, which is disposed between the bracket 135 and the vibration sensor 231. The shock-absorbing pad 136 is used to prevent the vibration of the whole machine from affecting the vibration sensor 231.

[0145] In some examples, the material of the shock-absorbing pad 136 can be set to rubber or silicone.

[0146] In some examples, the vibration sensor 231 may be fixed to the bracket 135 using connectors such as screws or bolts.

[0147] Based on the same inventive concept, embodiments of this application also provide a control device, including a memory and a processor. The memory stores a computer program, and when the computer program is executed by the processor, it implements the lifting control method as described in any of the above claims.

[0148] Based on the same inventive concept, embodiments of this application also provide a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor or an electronic device having the processor, it implements the steps of the lifting control method as described in any of the preceding claims.

[0149] Based on the same inventive concept, embodiments of this application also provide a computer program product, including a computer program or instructions. When the computer program or instructions are executed by a processor or an electronic device having the processor, they implement the steps in the lifting control method as described in any of the preceding claims.

[0150] From the above description of the embodiments, those skilled in the art will understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0151] It should be understood that the apparatuses and processes disclosed in the several embodiments provided in this application can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of modules or units is only a logical functional division. In actual implementation, there may be other division methods, such as multiple units or components being combined or integrated into another device. In addition, some features may be omitted or not performed. Furthermore, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be electrical, mechanical, or other forms.

[0152] The units described as separate components may or may not be physically separate. A component shown as a unit can be one or more physical units. That is, it can be located in one place or distributed in multiple different locations. Depending on the actual needs, some or all of the units can be selected to achieve the purpose of this solution.

[0153] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit; they can also exist physically separately; or some units can be integrated into one unit while others exist physically separately. The integrated units described above can be implemented in hardware or as software functional units.

[0154] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, all or part of the technical solutions of the embodiments of this application can be embodied in the form of a software product. This software product is stored in a storage medium. The software product includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0155] It should be noted that all or part of the above embodiments provided in this application (e.g., part or all of any feature) can be arbitrarily combined or combined with each other.

[0156] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0157] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method of hood lift control, characterized by, include: Detect target knocking signal, which is generated when the range hood, cabinet or stove is knocked; In response to the detection of the target knocking signal, when the cabinet door is closed, the range hood is controlled to perform a lifting action. When the cabinet door is closed, it completely or partially blocks the range hood. When the range hood suddenly stops descending and is in the intermediate position, the method further includes: When the cabinet door is closed and the target knocking signal is detected, a first time interval is determined between the currently detected target knocking signal and the previous adjacent target knocking signal. If the first time interval is less than a first preset value, the descent action continues; if the first time interval is not less than the first preset value, the ascent action is controlled.

2. The hood lift control method according to claim 1, characterized in that, The method further includes: If the cabinet door is detected to be open during the lifting and lowering process of the range hood, the range hood will be controlled to stop lifting and lowering.

3. The hood lift control method according to claim 2, wherein The method further includes: If the cabinet door is detected to be open during the lifting and lowering process of the range hood, an alarm indication will be output.

4. The range hood lifting control method according to any one of claims 1-3, characterized in that, The target tapping signal includes at least two types, and the method further includes: controlling the descent height of the range hood according to the type of the target tapping signal.

5. The range hood lifting control method according to any one of claims 1-3, characterized in that, The target impact signal includes: The system identifies whether the second time interval between two consecutive tapping signals is less than a second preset value, wherein the tapping signal is generated when the range hood, cabinet, or stove is tapped. If the second time interval between two consecutive tapping signals is less than the second preset value, then it is determined that the target tapping signal has been detected.

6. The range hood lifting control method according to any one of claims 1-3, characterized in that, The step of controlling the range hood to perform a lifting and lowering action when the cabinet door is closed includes: When the cabinet door is closed and the range hood is closed, the range hood is controlled to lower; when the cabinet door is closed and the range hood is open, the range hood is controlled to rise.

7. A range hood, characterized in that, include: The main body of the liftable range hood includes a control system; The impact detection device is electrically connected to the control system and is used to detect the impact signal of the target. A position detection device, electrically connected to the control system, is used to detect the open / closed state of the cabinet door; The control system is configured to perform the lifting control method as described in any one of claims 1 to 6.

8. The range hood as described in claim 7, characterized in that, The impact detection device includes a mounting box, an elastic mechanism, and a vibration detection component. The mounting box has an opening, the vibration detection component is disposed in the opening, the elastic mechanism is located inside the mounting box, the elastic mechanism connects the vibration detection component and the mounting box, and the vibration detection component moves relative to the mounting box along the elastic deformation direction of the elastic mechanism.

9. The range hood as described in claim 8, characterized in that, The position detection device includes at least two position detection components, each of which is supported on the mounting box and distributed on the left and right sides of the vibration detection assembly.

10. The range hood as described in any one of claims 7-9, characterized in that, The tapping detection device is installed on the front side of the liftable range hood body, or the tapping detection device is integrated inside the control panel of the liftable range hood body, or the tapping detection device is installed inside the stove; and / or, The impact detection device is wired to the control system or wirelessly connected to the control system; and / or The position detection device is wired to the control system or wirelessly connected to the control system.

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