Range hood control method and device and range hood

Abstract

The invention discloses an extractor hood control method and device and an extractor hood. The range hood comprises a flow guide plate assembly and a smoke collecting cavity, and the flow guide plate assembly comprises a fixed flow guide plate located in the middle of the lower portion of the smoke collecting cavity and a movable flow guide plate located between the fixed flow guide plate and the smoke collecting cavity. Whether the current stove outputs a middle stove eye opening signal or not is judged, and the middle stove eye opening signal is used for prompting that a middle stove eye of the current stove is in an opening state; determining a current smoke suction mode of the flow guide plate assembly according to a result of judging whether the middle stove opening signal is output or not, and adjusting and moving the flow guide plate to a target position according to the current smoke suction mode; and when the movable flow guide plate is located at the target position, the current stove burner working state of the current stove is obtained, and it is judged that the movable flow guide plate continues to be kept at the target position or the position of the movable flow guide plate is adjusted according to the current stove burner working state.

Description

Technical Field

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

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. It is installed above the kitchen stove and can quickly extract the waste burned in the stove and the fumes harmful to the human body generated during the cooking process and discharge them outdoors. At the same time, it condenses and collects the fumes, reducing pollution, purifying the air, and providing safety protection against poison and explosion.

[0003] In existing kitchen cooking environments, the diffusion of oil smoke generated in different cooking scenarios varies significantly. Due to the varying number and location of stove burners, the location where oil smoke is concentrated also varies, resulting in uneven distribution of oil smoke concentration across kitchen areas. Currently, range hoods employ methods such as reversible smoke deflectors and negative pressure plates to modify the flow field distribution, thereby improving extraction efficiency. However, the position of the smoke outlet in existing range hoods is fixed and cannot be dynamically adjusted based on changes in the location of oil smoke concentration, which, to a certain extent, limits further improvements in extraction efficiency. Summary of the Invention

[0004] The present invention provides a range hood control method, device and range hood, so as to solve the problem that the current range hood cannot be dynamically adjusted according to the change of the oil smoke concentration position, thereby affecting the extraction efficiency.

[0005] According to one aspect of the present invention, a range hood control method is provided. The range hood includes a guide plate assembly and a smoke collecting chamber. The guide plate assembly includes a fixed guide plate located in the middle of a lower portion of the smoke collecting chamber and a movable guide plate located between the fixed guide plate and the smoke collecting chamber. The range hood control method includes:

[0006] When the current cooker corresponding to the deflector assembly is in operation, determining whether the current cooker outputs a middle cooker eye opening signal, wherein the middle cooker eye opening signal is used to indicate that the middle cooker eye of the current cooker is in an open state;

[0007] Determining the current smoking mode of the deflector assembly based on the result of determining whether the middle stove eye opening signal is output, and adjusting and moving the deflector to a target position according to the current smoking mode;

[0008] When the movable guide plate is at the target position, the current working state of the current cooker eye is obtained, and according to the current working state of the cooker eye, it is determined whether the movable guide plate continues to remain at the target position or the position of the movable guide plate is adjusted.

[0009] Optionally, determining the current smoking mode of the deflector assembly according to the result of determining whether the middle burner opening signal is output includes:

[0010] If it is determined that the middle stove eye opening signal is not output, the current smoking mode of the deflector assembly is determined to be the outer ring smoking mode;

[0011] If it is determined that the middle cooker eye opening signal is output, the current smoking mode of the guide plate assembly is determined according to the working status of the left cooker eye and the working status of the right cooker eye.

[0012] Optionally, determining the current smoking mode of the deflector assembly according to the working state of the left stove eye and the working state of the right stove eye includes:

[0013] If the working state of the left stove eye is that the left stove eye is in a closed state, and the working state of the right stove eye is that the right stove eye is in a closed state, then it is determined that the current smoking mode of the deflector assembly is the inner ring smoking mode;

[0014] If the working state of the left stove eye is that the left stove eye is in an open state, or the working state of the right stove eye is that the right stove eye is in an open state, it is determined that the current smoking mode of the guide plate assembly is the double-ring smoking mode.

[0015] Optionally, the guide plate is adjusted to a target position according to the current smoking method, including:

[0016] If the current smoking mode is the outer ring smoking mode, adjusting the movable guide plate to the target position is to move the movable guide plate to the first position and contact with the fixed guide plate to be closed;

[0017] If the current smoking mode is the inner-circle smoking mode, the movable guide plate is adjusted to the target position so that the movable guide plate moves to the second position and contacts the smoke collecting chamber to be sealed;

[0018] If the current smoking mode is a double-ring smoking mode, adjusting the movable guide plate to the target position is to move the movable guide plate to the middle position;

[0019] The first position is lower than the middle position, and the middle position is lower than the second position.

[0020] Optionally, before determining the current smoking mode of the deflector assembly according to the working status of the left stove eye and the working status of the right stove eye, the method further includes:

[0021] Get the stove switch signal currently output by the stove;

[0022] If the stove switch signal includes a left stove eye opening signal, determining that the left stove eye is in an open state;

[0023] If the stove switch signal includes a right stove eye opening signal, it is determined that the working state of the right stove eye is that the right stove eye is in an open state.

[0024] Optionally, before determining whether the current cooker outputs the middle cooktop eye opening signal, the method further includes:

[0025] Determine whether the movable guide plate is in the initial position. If so, determine whether the current stove outputs a middle stove eye opening signal. If not, control the movable guide plate to adjust back to the initial position.

[0026] Optionally, determining whether to keep the movable guide plate at the target position or to adjust the position of the movable guide plate according to the current working state of the cooktop eye includes:

[0027] If the current working state of the stove eye changes, the position of the movable guide plate is adjusted according to the current working state of the stove eye;

[0028] If the current working state of the cooktop eye does not change, it is determined that the movable guide plate remains at the target position.

[0029] Optionally, the range hood control method further includes:

[0030] After the current stove stops being used, the movable guide plate is controlled to be adjusted back to the initial position, and the range hood is controlled to stop working.

[0031] According to another aspect of the present invention, a range hood control device is provided. The range hood includes a guide plate assembly and a smoke collecting chamber. The guide plate assembly includes a fixed guide plate located in the middle of the lower portion of the smoke collecting chamber and a movable guide plate located between the fixed guide plate and the smoke collecting chamber. The range hood control device includes:

[0032] a signal output module, configured to determine whether the current cooker corresponding to the deflector assembly outputs a middle cooker eye activation signal when the current cooker is in operation, wherein the middle cooker eye activation signal is used to indicate that the middle cooker eye of the current cooker is in an activated state;

[0033] a position adjustment module, configured to determine the current smoking mode of the deflector assembly based on the result of determining whether the middle burner opening signal is output, and to adjust and move the deflector to a target position according to the current smoking mode;

[0034] The range hood control module is used to obtain the current working status of the current stove eye when the movable guide plate is in the target position, and determine whether the movable guide plate continues to remain in the target position or adjusts the position of the movable guide plate according to the current working status of the stove eye.

[0035] According to another aspect of the present invention, a range hood is provided, characterized in that the range hood comprises a guide plate assembly, a smoke collecting chamber, and a range hood control device according to any embodiment of the present invention;

[0036] The guide plate assembly includes a fixed guide plate located in the middle of the lower part of the smoke collecting chamber, a movable guide plate located between the fixed guide plate and the smoke collecting chamber, a first fixed rod, a second fixed rod and four push rods. The fixed guide plate is fixed to the smoke collecting chamber through the first fixed rod and the second fixed rod, and the movable guide plate is connected to the four push rods. The push rods control the movable guide plate to move up and down.

[0037] According to the technical solution of the embodiment of the present invention, the range hood includes a guide plate assembly and a smoke collecting chamber, the guide plate assembly includes a fixed guide plate located in the middle of the lower part of the smoke collecting chamber and a movable guide plate located between the fixed guide plate and the smoke collecting chamber, and by arranging a guide plate and a guide plate vertical position adjustment assembly in the smoke collecting chamber of the range hood, two adjustable guide plates are designed for the air intake of the range hood, which can also serve as negative pressure plates to increase the local negative pressure at the smoke inlet, and the range hood control method of the present invention comprises: when the current stove corresponding to the guide plate assembly is working, judging whether the current stove outputs a middle stove eye opening signal, wherein the middle stove eye opening signal is used to prompt that the middle stove eye of the current stove is in an open state; judging whether the middle stove eye opening signal is output according to the The results determine the current smoking mode of the deflector assembly, and adjust the mobile deflector to the target position according to the current smoking mode. By receiving the stove eye switch status information in real time, the deflector assembly can be automatically adjusted to the target position to further optimize the smoking effect. When the mobile deflector is in the target position, the current stove eye working status is obtained, and according to the current stove eye working status, it is determined whether the mobile deflector continues to remain in the target position or adjusts the position of the mobile deflector. That is, the deflector adjusts the position and area of ​​the air inlet according to the use of the stove, guides the airflow stratification, and concentrates the air volume around the air inlet in the area with high oil smoke concentration, thereby improving the oil smoke suction efficiency and ensuring that the oil smoke can be efficiently captured in different cooking scenarios, thereby improving the user experience.

[0038] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0040] Figure 1 is a flow chart of a range hood control method provided by an embodiment of the present invention;

[0041] Figure 2is a structural schematic diagram of a range hood provided according to an embodiment of the present invention;

[0042] Figure 3 is a front view of a range hood provided according to an embodiment of the present invention;

[0043] Figure 4 2. Schematic diagram of airflow guidance of a range hood provided in an embodiment of the present invention;

[0044] Figure 5 2 is a schematic structural diagram of a guide plate assembly according to an embodiment of the present invention, wherein the current smoking mode is an outer ring smoking mode;

[0045] Figure 6 2 is a schematic structural diagram of a guide plate assembly according to an embodiment of the present invention, wherein the current smoking mode is an outer ring smoking mode;

[0046] Figure 7 2 is a schematic structural diagram of a deflector assembly according to an embodiment of the present invention, wherein the current smoking mode is a double-ring smoking mode;

[0047] Figure 8 2 is a schematic structural diagram of a deflector assembly according to an embodiment of the present invention, wherein the current smoking mode is a double-ring smoking mode;

[0048] Figure 9 2 is a schematic structural diagram of a guide plate assembly according to an embodiment of the present invention, wherein the current smoking mode is an inner-circle smoking mode;

[0049] Figure 10 2 is a schematic structural diagram of a guide plate assembly according to an embodiment of the present invention, wherein the current smoking mode is an inner-circle smoking mode;

[0050] Figure 11 is a flow chart of a range hood control method provided by an embodiment of the present invention;

[0051] Figure 12 2 is a schematic structural diagram of a range hood control device according to an embodiment of the present invention;

[0052] In the picture:

[0053] 1. Fixed guide plate; 2. Movable guide plate; 3. Smoke collecting chamber; 4. First fixed rod; 5. Second fixed rod; 6. Push rod;

[0054] 10. Range hood; 20. Current stove;

[0055] 310. Signal output module; 320. Position adjustment module; 330. Range hood control module. DETAILED DESCRIPTION

[0056] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only 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 ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0057] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0058] Figure 1 A flow chart of a range hood control method is provided for an embodiment of the present invention. This embodiment is applicable to situations where dynamic adjustment is required based on changes in the location of concentrated oil smoke. The range hood control method can be executed by a range hood control device, which can be implemented in the form of hardware and / or software and can be configured in the range hood. Figure 2 As shown, the range hood includes a guide plate assembly and a smoke collecting chamber 3. The guide plate assembly includes a fixed guide plate 1 located in the middle of the lower part of the smoke collecting chamber 3 and a movable guide plate 2 located between the fixed guide plate 1 and the smoke collecting chamber 3. Figure 1 As shown, the range hood control method includes:

[0059] S110. When the current cooker corresponding to the deflector assembly is in operation, determine whether the current cooker outputs a middle cooker eye opening signal, wherein the middle cooker eye opening signal is used to indicate that the middle cooker eye of the current cooker is in an open state.

[0060] The current stove is a stove installed below the range hood. The current stove can be, but is not limited to, a three-burner stove. This embodiment does not impose any restrictions on the type of the current stove. As can be seen, after the range hood is started, the current stove corresponding to the deflector assembly starts working.

[0061] In this embodiment, when the current stove is a three-burner stove, before determining whether the current stove outputs the middle burner opening signal, the position of the movable guide plate is determined. That is, if it is determined that the movable guide plate is in the initial position, the stove switch signal output is controlled, and it is further determined whether the current stove outputs the middle burner opening signal. Conversely, if it is determined that the movable guide plate is not in the initial position, the movable guide plate is controlled to adjust back to the initial position.

[0062] When the current stove is a three-burner stove, the three-burner stove includes the middle burner, the left burner and the right burner, then it is necessary to consider the impact of the middle burner on the oil smoke concentration. First, determine the switch status of the middle burner, that is, by judging whether the stove switch signal received from the current stove output includes the middle burner start signal, determine whether the middle burner in the three-burner stove is turned on.

[0063] Specifically, participate Figure 3 As shown, the range hood 10 and the current stove 20 are linked. After the current stove 20 is turned on, the current stove 20 releases a stove switch signal, which is fed back to the range hood 10 through the current stove 20. The range hood 10 controls the position of the mobile deflector based on the stove switch signal to achieve the following. Figure 4 As shown in the smoke extraction effect, it can be known that the stove switch signal output by the current stove 20 obtained by the range hood 10 may include one or more of the switch signal corresponding to the left stove eye of the three-burner stove, the switch signal corresponding to the right stove eye, and the switch signal corresponding to the middle stove eye. The middle stove eye on signal can be used to prompt that the middle stove eye of the current stove 20 is in the on state. Similarly, the switch signal corresponding to the right stove eye can be used to prompt that the right stove eye of the current stove 20 is in the on state.

[0064] Based on the above, since the position of the movable guide plate is determined before the range hood is controlled, and the movable guide plate is controlled to be in the initial position after the determination, when it is determined that the middle stove eye is open, it is determined that the movable guide plate continues to remain in the initial position.

[0065] S120: Determine the current smoking mode of the guide plate assembly according to the result of determining whether the middle stove eye opening signal is output, and adjust and move the guide plate to the target position according to the current smoking mode.

[0066] On the basis of the above, see Figure 5 and Figure 6As shown, the movable guide plate 2 moves to the first position and contacts and closes with the fixed guide plate 1, that is, the curved position of the movable guide plate 2 and the fixed guide plate 1 are tightly fitted. At this time, the oil smoke only enters the flow channel from the outermost circle of the smoke collecting chamber 3, thereby changing the air volume distribution at the air inlet position and concentrating the air volume in the area with high oil smoke concentration. The current smoking mode of the guide plate assembly is the outer ring smoking mode; in this embodiment, when the middle stove eye is not opened, that is, it is determined that the current stove does not output the middle stove eye opening signal, then it is determined that the current smoking mode of the guide plate assembly is the outer ring smoking mode.

[0067] Furthermore, when it is determined that the stove currently outputs the middle cooktop opening signal, the current smoking mode of the deflector assembly is determined according to the working status of the left cooktop and the right cooktop.

[0068] Specifically, after obtaining the stove switch signal output by the current stove, if the stove switch signal includes a left stove eye opening signal, it can be determined that the working status of the left stove eye is that the left stove eye is in the open state; if the stove switch signal includes a right stove eye opening signal, it can be determined that the working status of the right stove eye is that the right stove eye is in the open state.

[0069] On the basis of the above, see Figure 7 and Figure 8 As shown, the movable guide plate 2 moves to the middle position, and there is a gap between it and the fixed guide plate 1 and the range hood chassis. At this time, the oil smoke can enter the flow channel from the outer ring and the inner ring respectively, thereby changing the air volume distribution at the air inlet position, so that the air volume is concentrated in the area with high oil smoke concentration, and the current smoking mode of the guide plate assembly is the double-ring smoking mode; in this embodiment, the middle stove eye is in the open state, and at the same time, the working state of the left stove eye is that the left stove eye is in the open state, or the working state of the right stove eye is that the right stove eye is in the open state, then it is determined that the current smoking mode of the guide plate assembly is the double-ring smoking mode.

[0070] On the basis of the above, see Figure 9 and Figure 10 As shown, the movable guide plate 2 moves to the second position and contacts with the smoke collecting chamber 3 and is closed, that is, the edge plane position of the movable guide plate 2 contacts with the smoke collecting chamber 3, and its plane position is tightly fitted, and is in an edge-closed state. At this time, the oil smoke only enters the flow channel from a circle inside the smoke collecting chamber 3, thereby changing the air volume distribution at the air inlet position, so that the air volume is concentrated in the area with high oil smoke concentration, and the current smoking mode of the guide plate assembly is the outer ring smoking mode; in this embodiment, the middle stove eye is in the open state, and only the middle stove eye is in the open state, that is, the working state of the left stove eye is the left stove eye in the closed state, and the working state of the right stove eye is the right stove eye in the closed state, then it is determined that the current smoking mode of the guide plate assembly is the inner ring smoking mode.

[0071] Among them, the first position is lower than the middle position, and the middle position is lower than the second position. The first position is the lowest position that the movable guide plate can move to, that is, the opening position of the movable guide plate reaches the maximum, and the second position is the highest position that the movable guide plate can move to, that is, the position where the movable guide plate can move upward.

[0072] In this embodiment, if the current smoking mode is the outer ring smoking mode, adjusting the movable guide plate to the target position means that the movable guide plate moves to the first position, and contacts and closes with the fixed guide plate; if the current smoking mode is the inner ring smoking mode, adjusting the movable guide plate to the target position means that the movable guide plate moves to the second position, and contacts and closes with the smoke collecting chamber; if the current smoking mode is the double ring smoking mode, adjusting the movable guide plate to the target position means that the movable guide plate moves to the middle position.

[0073] S130: When the movable guide plate is at the target position, obtain the current working state of the cooktop eye of the current cooker, and determine whether the movable guide plate should continue to remain at the target position or adjust the position of the movable guide plate according to the current working state of the cooktop eye.

[0074] The target position is the position of the mobile guide plate after the mobile guide plate is adjusted according to the current smoking method. The target position can be Figure 5 The movable guide plate shown in FIG. 1 is moved to the first position and is closed by contact with the fixed guide plate 1. Figure 7 The movable deflector shown is moved to the middle position, which can also be Figure 9 The movable guide plate is shown to be moved to the second position, and contacts the smoke collecting chamber 3 to be closed.

[0075] The current cooktop eye operating status is the current stove status acquired in real time when the movable deflector is in the target position, reflecting whether the current stove's cooktop eye operation has changed. Specifically, the current cooktop eye operating status may include whether the center cooktop eye is open or closed, or whether the left or right cooktop eye is open or closed.

[0076] Specifically, if the current working state of the cooker eye changes, the position of the movable guide plate is adjusted according to the current working state of the cooker eye; if the current working state of the cooker eye does not change, the movable guide plate is determined to remain at the target position.

[0077] Based on the above embodiment, after the cooktop is stopped, the movable deflector is controlled to return to its initial position, and the range hood is controlled to stop operating after a certain period of time. It is understood that the length of this period of time can be selected and set based on the range hood properties or the kitchen user's usage habits, and this embodiment does not impose any restrictions on this. For example, if the period of time is 5 seconds, the range hood will be controlled to stop operating after 5 seconds.

[0078] The technical solution of an embodiment of the present invention comprises a range hood including a deflector assembly and a smoke collection chamber, the deflector assembly including a fixed deflector located in the middle of the lower portion of the smoke collection chamber and a movable deflector located between the fixed deflector and the smoke collection chamber. A range hood control method comprises: when a current stove corresponding to the deflector assembly is in operation, determining whether the current stove outputs a middle burner opening signal, wherein the middle burner opening signal is used to indicate that the middle burner of the current stove is in an open state; determining a current smoke extraction mode of the deflector assembly based on the result of determining whether the middle burner opening signal is output, and adjusting the movable deflector to a target position based on the current smoke extraction mode; when the movable deflector is in the target position, obtaining the current operating state of the burner of the current stove, and determining whether to maintain the movable deflector in the target position or adjust the position of the movable deflector based on the current operating state of the burner. The present invention solves the problem that current range hoods cannot dynamically adjust according to changes in the location of oil smoke concentration, thereby affecting smoke extraction efficiency. The present invention can control the distribution and intensity of air volume, optimize air volume utilization, achieve a comprehensive smoke locking effect, and effectively improve oil smoke capture efficiency.

[0079] Based on the same inventive concept, on the basis of the above embodiments, Figure 11 This is a flow chart of a range hood control method provided in the second embodiment of the present invention. Based on the above embodiments, this embodiment provides a guide plate assembly with adjustable opening and closing angles in the smoke collection chamber. The guide plate assembly is controlled to adjust the position and area of ​​the lower air inlet according to the stove switch status and the oil smoke concentration value of the smoke inlet, guiding the air flow to stratify and concentrate the air volume around the lower air inlet in the area with high oil smoke concentration, thereby improving the oil smoke suction efficiency and providing an optional implementation method. Figure 11 As shown, the range hood control method includes:

[0080] S210: The range hood is started, and the current stove corresponding to the deflector assembly is in operation.

[0081] S211: Acquire a stove switch signal currently output by the stove.

[0082] S212: Determine whether the current cooker outputs a middle cooker eye opening signal according to the cooker switch signal. If so, execute step S214; if not, execute step S213.

[0083] S213: Determine that the current smoking mode of the guide plate assembly is the outer ring smoking mode.

[0084] Specifically, if it is determined based on the stove switch signal that the current stove has not output the middle stove eye opening signal, it means that one or both of the left stove eye and the right stove eye are open. At this time, the outer ring smoking mode can be adopted, that is, the current smoking mode of the guide plate assembly is determined to be the outer ring smoking mode to achieve the smoking effect.

[0085] S214, determine whether the working status of the left cooker eye is that the left cooker eye is in the closed state, and whether the working status of the right cooker eye is that the right cooker eye is in the closed state. If so, execute step S215; if not, execute step S216.

[0086] Specifically, if it is determined based on the stove switch signal that the current stove outputs the middle stove eye opening signal, which means that the middle stove eye is turned on, the switch status of the left stove eye and the right stove eye is further determined.

[0087] S215: Determine that the current smoking mode of the guide plate assembly is the inner-circle smoking mode.

[0088] Specifically, if the working state of the left stove eye is that the left stove eye is in the closed state, and the working state of the right stove eye is that the right stove eye is in the closed state, that is, only the middle stove eye is in the open state, then the inner ring smoking mode can be used, that is, the current smoking mode of the guide plate assembly is determined to be the inner ring smoking mode to achieve the smoking effect.

[0089] S216: Determine that the current smoking mode of the guide plate assembly is a double-ring smoking mode.

[0090] Specifically, if the working state of the left stove eye is that the left stove eye is in the closed state, or the working state of the right stove eye is that the right stove eye is in the closed state, that is, the left stove eye or the right stove eye is in the open state, then the double-ring smoking mode can be used, that is, the current smoking mode of the guide plate assembly is determined to be the double-ring smoking mode to ensure the smoking effect.

[0091] S217: Adjust the movable guide plate to the target position according to the current smoking method.

[0092] S218: When the movable guide plate is at the target position, obtain the current working state of the cooker eye of the current cooker.

[0093] S219: Determine whether the current working state of the cooktop eye has changed. If so, execute step S211; if not, execute step S220.

[0094] Specifically, when the current working state of the cooktop eye changes, step S211 is further executed, that is, the cooktop switch signal output by the current cooktop is obtained again, and the position of the movable guide plate is determined again.

[0095] S220: Determine whether the movable guide plate continues to remain at the target position.

[0096] S221. After the current stove stops being used, the movable guide plate is controlled to be adjusted back to the initial position, and the range hood is controlled to stop working.

[0097] The technical solution of the embodiment of the present invention is to adapt to three-burner stoves by arranging a movable guide plate and a fixed guide plate vertical position adjustment component in the smoke collecting chamber of the range hood. The movable guide plate is controlled to adjust the position and area of ​​the air inlet according to the use of the stove, guide the airflow stratification, and concentrate the air volume around the air inlet in the area with high oil fume concentration, thereby improving the oil fume suction efficiency, thereby improving the aerodynamic performance of the range hood, reducing noise, and enhancing user experience.

[0098] Based on the same inventive concept, Figure 12 This is a schematic diagram of the structure of a range hood control device provided by an embodiment of the present invention. The range hood includes a guide plate assembly and a smoke collecting chamber. The guide plate assembly includes a fixed guide plate located in the middle of the lower part of the smoke collecting chamber and a movable guide plate located between the fixed guide plate and the smoke collecting chamber. Figure 12 As shown, the range hood control device includes:

[0099] The signal output module 310 is configured to determine whether the current cooker corresponding to the deflector assembly outputs a middle burner opening signal when the current cooker is in operation, wherein the middle burner opening signal is used to indicate that the middle burner of the current cooker is in an open state;

[0100] A position adjustment module 320 is configured to determine the current smoking mode of the deflector assembly based on the result of determining whether the middle burner opening signal is output, and to adjust and move the deflector to a target position according to the current smoking mode;

[0101] The range hood control module 330 is used to obtain the current working status of the current stove eye when the movable guide plate is in the target position, and determine whether the movable guide plate continues to remain in the target position or adjusts the position of the movable guide plate according to the current working status of the stove eye.

[0102] Optionally, the current smoking mode of the deflector assembly is determined according to the result of determining whether the middle burner opening signal is output, specifically for:

[0103] If it is determined that the middle stove eye opening signal is not output, the current smoking mode of the deflector assembly is determined to be the outer ring smoking mode;

[0104] If it is determined that the middle cooker eye opening signal is output, the current smoking mode of the guide plate assembly is determined according to the working status of the left cooker eye and the working status of the right cooker eye.

[0105] Optionally, the current smoking mode of the deflector assembly is determined according to the working status of the left stove eye and the working status of the right stove eye, specifically for:

[0106] If the working state of the left stove eye is that the left stove eye is in a closed state, and the working state of the right stove eye is that the right stove eye is in a closed state, then it is determined that the current smoking mode of the deflector assembly is the inner ring smoking mode;

[0107] If the working state of the left stove eye is that the left stove eye is in an open state, or the working state of the right stove eye is that the right stove eye is in an open state, it is determined that the current smoking mode of the guide plate assembly is the double-ring smoking mode.

[0108] Optionally, the guide plate is adjusted to a target position according to the current smoking method, specifically for:

[0109] If the current smoking mode is the outer ring smoking mode, adjusting the movable guide plate to the target position is to move the movable guide plate to the first position and contact with the fixed guide plate to be closed;

[0110] If the current smoking mode is the inner-circle smoking mode, the movable guide plate is adjusted to the target position so that the movable guide plate moves to the second position and contacts the smoke collecting chamber to be sealed;

[0111] If the current smoking mode is a double-ring smoking mode, adjusting the movable guide plate to the target position is to move the movable guide plate to the middle position;

[0112] The first position is lower than the middle position, and the middle position is lower than the second position.

[0113] Optionally, the range hood control device further includes:

[0114] A stove switch signal acquisition module is used to acquire the stove switch signal currently output by the stove;

[0115] If the stove switch signal includes a left stove eye opening signal, determining that the left stove eye is in an open state;

[0116] If the stove switch signal includes a right stove eye opening signal, it is determined that the working state of the right stove eye is that the right stove eye is in an open state.

[0117] Optionally, the range hood control device further includes:

[0118] The initial position control module is used to determine whether the movable guide plate is in the initial position. If so, it determines whether the current stove outputs a middle stove eye opening signal. If not, it controls the movable guide plate to adjust back to the initial position.

[0119] Optionally, the method determines whether the movable guide plate continues to remain at the target position or adjusts the position of the movable guide plate according to the current working state of the cooktop, specifically for:

[0120] If the current working state of the stove eye changes, the position of the movable guide plate is adjusted according to the current working state of the stove eye;

[0121] If the current working state of the cooktop eye does not change, it is determined that the movable guide plate remains at the target position.

[0122] Optionally, the range hood control device further includes:

[0123] The range hood stopping module is used to control the movable guide plate to adjust back to the initial position and control the range hood to stop working after the current stove is stopped.

[0124] The range hood control device provided in the embodiment of the present invention can execute the range hood control method provided in any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the range hood control method.

[0125] Based on the same inventive concept, on the basis of the above embodiments, continue to refer to Figure 2 As shown, the range hood includes a guide plate assembly, a smoke collecting chamber 3 and a range hood control device as in any embodiment of the present invention.

[0126] Continue to see Figure 2 The guide plate assembly includes a fixed guide plate 1 located in the middle of the lower part of the smoke collecting chamber 3, a movable guide plate 2 located between the fixed guide plate 1 and the smoke collecting chamber 3, a first fixed rod 4, a second fixed rod 5 and four push rods 6. The fixed guide plate 1 is fixed to the smoke collecting chamber 3 through the first fixed rod 4 and the second fixed rod 5. The movable guide plate 2 is connected to the four push rods 6, and the push rods 6 control the movable guide plate 2 to move up and down.

[0127] The fixed guide plate 1 is fixed by the first fixing rod 4 and the second fixing rod 5 and cannot be moved. It remains stationary during the entire smoke stove linkage process.

[0128] Continue to see Figure 2 As shown, the fixed guide plate 1 is located in the middle of the lower part of the smoke collecting chamber 3. The front, left and right sides are curved surfaces, which play the role of guiding the airflow. The rear side is a flat surface with a vent on the rear side to ensure that the rear side can also absorb the smoke. The movable guide plate 2 is located between the fixed guide plate 1 and the smoke collecting chamber 3 of the range hood. The front, left and right sides are also curved surfaces, which play the role of guiding the airflow. The rear side is a flat surface with a vent on the rear side to ensure that the rear side can also absorb the smoke. The vent on the rear side and the front curved surface can make the inlet airflow not at the same horizontal plane, reduce the airflow collision, and thus reduce the generation of cyclonic vortex.

[0129] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0130] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A range hood control method, characterized in that: The range hood includes a guide plate assembly and a smoke collecting chamber, wherein the guide plate assembly includes a fixed guide plate located in the middle of the lower portion of the smoke collecting chamber and a movable guide plate located between the fixed guide plate and the smoke collecting chamber. The range hood control method includes: When the current cooker corresponding to the deflector assembly is in operation, determining whether the current cooker outputs a middle cooker eye opening signal, wherein the middle cooker eye opening signal is used to indicate that the middle cooker eye of the current cooker is in an open state; determining a current smoking mode of the deflector assembly based on a result of determining whether a middle stove eye opening signal is output, and adjusting the movable deflector to a target position based on the current smoking mode; When the movable guide plate is at the target position, the current working state of the current cooker eye is obtained, and according to the current working state of the cooker eye, it is determined whether the movable guide plate continues to remain at the target position or the position of the movable guide plate is adjusted.

2. The range hood control method according to claim 1, characterized in that: Determining the current smoking mode of the deflector assembly according to a result of determining whether the middle stove eye opening signal is output, includes: If it is determined that the middle stove eye opening signal is not output, determining that the current smoking mode of the deflector assembly is the outer ring smoking mode; If it is determined that the middle cooker eye opening signal is output, the current smoking mode of the guide plate assembly is determined according to the working status of the left cooker eye and the working status of the right cooker eye.

3. The range hood control method according to claim 2, characterized in that: Determining the current smoking mode of the deflector assembly according to the working state of the left stove eye and the working state of the right stove eye includes: If the working state of the left cooker eye is that the left cooker eye is in a closed state, and the working state of the right cooker eye is that the right cooker eye is in a closed state, then determining that the current smoking mode of the deflector assembly is the inner-circle smoking mode; If the working state of the left cooker eye is that the left cooker eye is in an open state, or the working state of the right cooker eye is that the right cooker eye is in an open state, it is determined that the current smoking mode of the guide plate assembly is the double-ring smoking mode.

4. The range hood control method according to claim 3, characterized in that: Adjusting the movable guide plate to a target position according to the current smoking method includes: If the current smoking mode is the outer-circle smoking mode, adjusting the movable guide plate to the target position is to move the movable guide plate to the first position and contact and seal with the fixed guide plate; If the current smoking mode is the inner-circle smoking mode, adjusting the movable guide plate to the target position is to move the movable guide plate to the second position and contact with the smoke collecting chamber to seal it; If the current smoking mode is a double-ring smoking mode, adjusting the movable guide plate to a target position is to move the movable guide plate to a middle position; The first position is lower than the middle position, and the middle position is lower than the second position.

5. The range hood control method according to claim 2, characterized in that: Before determining the current smoking mode of the deflector assembly according to the working status of the left stove eye and the working status of the right stove eye, the method further includes: Obtaining a stove switch signal output by the current stove; If the stove switch signal includes a left stove eye opening signal, determining that the left stove eye is in an open state; If the stove switch signal includes a right stove eye opening signal, it is determined that the working state of the right stove eye is that the right stove eye is in an open state.

6. The range hood control method according to claim 1, characterized in that: Before determining whether the current cooker outputs the middle cooktop eye opening signal, the method further includes: Determine whether the movable guide plate is in the initial position. If so, determine whether the current cooker outputs a middle cooker eye opening signal. If not, control the movable guide plate to adjust back to the initial position.

7. The range hood control method according to claim 1, characterized in that: Determining whether the movable guide plate continues to remain at the target position or adjusts the position of the movable guide plate according to the current working state of the cooktop eye includes: If the current working state of the cooktop eye changes, adjusting the position of the movable guide plate according to the current working state of the cooktop eye; If the current working state of the cooktop eye does not change, it is determined that the movable guide plate is maintained at the target position.

8. The range hood control method according to claim 1, characterized in that: The range hood control method further includes: After the current stove stops being used, the movable guide plate is controlled to be adjusted back to the initial position, and the range hood is controlled to stop working.

9. A range hood control device, characterized in that: The range hood includes a guide plate assembly and a smoke collecting chamber, wherein the guide plate assembly includes a fixed guide plate located in the middle of the lower part of the smoke collecting chamber and a movable guide plate located between the fixed guide plate and the smoke collecting chamber. The range hood control device includes: a signal output module, configured to determine whether a current cooker corresponding to the deflector assembly outputs a middle cooker eye activation signal when the current cooker is in operation, wherein the middle cooker eye activation signal is used to indicate that the middle cooker eye of the current cooker is in an activated state; a position adjustment module, configured to determine a current smoking mode of the deflector assembly based on a result of determining whether a middle burner opening signal is output, and adjust the movable deflector to a target position according to the current smoking mode; The range hood control module is used to obtain the current working status of the current stove eye when the movable guide plate is in the target position, and determine whether the movable guide plate continues to remain in the target position or adjusts the position of the movable guide plate according to the current working status of the stove eye.

10. A range hood, characterized in that: The range hood comprises a guide plate assembly, a smoke collecting chamber and the range hood control device according to claim 9; The guide plate assembly includes a fixed guide plate located in the middle of the lower part of the smoke collecting chamber, a movable guide plate located between the fixed guide plate and the smoke collecting chamber, a first fixed rod, a second fixed rod and four push rods. The fixed guide plate is fixed to the smoke collecting chamber through the first fixed rod and the second fixed rod. The movable guide plate is connected to the four push rods, and the push rods control the movable guide plate to move up and down.

Images