Range hood, control method thereof, and computer readable storage medium

Abstract

The present application relates to a kind of range hood and its control method, computer readable storage medium.The range hood includes: air cabinet, pedestal, smoke collecting cover and first adjusting component;The bottom of pedestal is communicated with the bottom of air cabinet, the first end and the second end of pedestal are communicated with the smoke suction shell extending downward, the first end and the second end of pedestal are located on the two sides of the central axis of air cabinet;Smoke collecting cover is communicated with corresponding smoke suction shell;First adjusting component is used to adjust corresponding smoke collecting cover to retract into corresponding smoke suction shell or extend from corresponding smoke suction shell.The present application sets up smoke collecting cover on the first end and the second end of pedestal located on the two sides of the central axis of air cabinet, so that first adjusting component can extend corresponding smoke collecting cover close to oil fume to the outside of corresponding smoke suction shell, and retract other smoke collecting cover into corresponding smoke suction shell, so that the suction capacity of range hood can be concentrated, and the waste of suction capacity caused by multiple smoke collecting covers working simultaneously can be avoided.

Description

Technical Field

[0001] This invention relates to the field of electrical technology, and in particular to a range hood and its control method, as well as a computer-readable storage medium. Background Technology

[0002] Range hoods are typically installed above the stove in the kitchen, primarily to remove cooking fumes and create a healthy and comfortable living environment. Currently, most range hoods on the market are top-mounted. The suction inlet of this type of range hood is located in the center of the smoke collection hood on the top base. When the range hood is running, it draws air from the surrounding area through the suction inlet. If the fumes are only concentrated on one side of the range hood, it cannot concentrate its suction power in one place, greatly wasting the range hood's suction capacity and increasing energy consumption. Summary of the Invention

[0003] Based on this, the present invention addresses the problem that when oil fumes are only present on one side of the range hood, the smoke extraction capacity cannot be concentrated in one place. It provides a range hood and its control method, as well as a computer-readable storage medium, which can solve the above-mentioned problems.

[0004] A range hood includes: a fan housing, a base, a smoke collection hood, and a first adjustment component;

[0005] The base is connected to the bottom of the blower, and the first and second ends of the base are connected to downwardly extending smoke shells. The first and second ends of the base are located on both sides of the central axis of the blower.

[0006] The smoke collection hood is connected to the corresponding smoking shell;

[0007] The first adjustment component is used to adjust the corresponding smoke collection hood to retract into the corresponding smoking housing or to extend out from the corresponding smoking housing.

[0008] In one embodiment, the range hood further includes a first main controller, which is electrically connected to the first adjustment component;

[0009] The base is provided with a first sensor at the first end and the second end, which is electrically connected to the first main controller. The first sensor is used to acquire and transmit the oil fume concentration to the first main controller.

[0010] The first master controller is used to control the first adjustment component to retract the smoke collection hood into the corresponding smoke-emitting housing or extend it out from the corresponding smoke-emitting housing based on the smoke concentration.

[0011] In one embodiment, the fume hood is provided with a second sensor electrically connected to the first main controller. The second sensor is used to acquire and transmit to the first main controller the distance between the fume hood and the cooking utensils.

[0012] The first main controller is also used to adjust the length of the smoke collection hood retracted into the smoke extraction housing or the length of the smoke extraction housing extended from the smoke extraction housing, based on the distance between the smoke collection hood and the cooking utensils, using the first adjustment component.

[0013] In one embodiment, the sensing surface of the second sensor is distributed at a downward angle.

[0014] In one embodiment, the angle between the sensing surface and the vertical direction is greater than or equal to 20° and less than or equal to 80°.

[0015] In one embodiment, the first adjustment component includes a first drive member and a first guide rail, wherein the first drive member is used to drive the corresponding smoke hood to slide along the first guide rail.

[0016] In one embodiment, the first guide rail is disposed within the smoking housing;

[0017] The first drive unit includes a linear motor that can slide along the first guide rail, and the housing of the linear motor is connected to the smoke collection hood.

[0018] In one embodiment, the range hood further includes: a second adjustment component for adjusting the angle between the smoke extraction housing and the base;

[0019] The second adjustment component includes a second driving member and a rotating member, wherein the second driving member is used to drive the rotating member to rotate the smoking shell.

[0020] In one embodiment, the range hood further includes a second main controller, which is electrically connected to the second adjustment component;

[0021] The base is provided with a third sensor at the first end and the second end, which is electrically connected to the second main controller. The third sensor is used to acquire and transmit the oil fume concentration to the second main controller.

[0022] The second main controller is used to adjust the angle between the smoke-emitting shell and the base based on the concentration of oil fumes using the second adjustment component.

[0023] In one embodiment, the second drive element includes a push rod motor;

[0024] The rotating component includes a crank, the first end of which is connected to the push rod of the push rod motor, the second end of which is rotatably mounted on the base, and the third end of which is connected to the smoking housing.

[0025] In one embodiment, the range hood further includes a third adjustment component, which controls the corresponding smoke extraction housing to retract into or extend from the base.

[0026] In one embodiment, the range hood further includes a third main controller, which is electrically connected to the third adjustment component;

[0027] A fourth sensor, which is electrically connected to the third main controller, is provided on the first and second ends of the base. The fourth sensor is used to acquire and transmit the oil fume concentration to the third main controller.

[0028] The third main controller is used to control the corresponding third adjustment component to retract the corresponding smoke shell into the base or extend it out from the base based on the oil fume concentration.

[0029] A control method for a range hood as described in any of the preceding claims, the control method comprising:

[0030] Acquire and transmit the oil fume concentration on both sides of the central axis of the fan of the range hood;

[0031] Based on the oil fume concentration, the corresponding smoke collection hood in the range hood is either retracted into the corresponding smoke extraction housing in the range hood or extended from the corresponding smoke extraction housing.

[0032] In one embodiment, during the process of retracting the corresponding smoke collection hood into or extending from the corresponding smoke extraction housing of the range hood, the control method further includes:

[0033] Obtain and send the corresponding distance between the fume hood and the cooking utensils;

[0034] Based on the distance between the corresponding smoke hood and the cooking utensils, adjust the length of the corresponding smoke hood that retracts into the corresponding smoke shell or the length that extends out of the corresponding smoke shell.

[0035] In one embodiment, the control method further includes:

[0036] Based on the oil fume concentration, adjust the angle between the corresponding smoke extraction shell and the base of the range hood.

[0037] In one embodiment, before adjusting the angle between the corresponding smoke extraction housing and the base of the range hood, the control method further includes:

[0038] Based on the concentration of oil fumes, the corresponding smoke extraction shell is either retracted into the base or extended from the base.

[0039] A computer-readable storage medium having a computer program stored thereon, characterized in that, when the computer program is executed by a processor, it implements the steps of any of the control methods described above.

[0040] As described above, the range hood and its control method, as well as the computer-readable storage medium, by setting smoke collection hoods on the first and second ends located on both sides of the central axis of the air handling unit in the base, the first adjustment component can extend the smoke collection hood that is closer to the oil fumes to the outside of the corresponding smoke extraction housing, and retract the other smoke collection hoods into the corresponding smoke extraction housing. In this way, the smoke extraction capacity of the range hood can be concentrated, avoiding the waste of smoke extraction capacity caused by multiple smoke collection hoods working at the same time. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of a range hood provided in an embodiment of the present invention;

[0042] Figure 2 This is a schematic diagram of the internal structure of a range hood provided in an embodiment of the present invention;

[0043] Figure 3 This is a cross-sectional schematic diagram of a range hood provided in an embodiment of the present invention;

[0044] Figure 4 for Figure 3 A magnified view of a portion at point A.

[0045] The labels in the attached diagram are explained as follows:

[0046] 100, Air handling unit; 110, Fan; 120, Air handling unit housing; 200, Base; 300, Smoke hood; 400, First adjustment component; 410, First drive component; 420, First guide rail; 510, First sensor; 520, Second sensor; 521, Sensing surface; 600, Second adjustment component; 610, Second drive component; 620, Rotating component; 630, Bracket; 700, Third adjustment component; 710, Third drive component; 720, Second guide rail; 800, Smoke casing. Detailed Implementation

[0047] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0048] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0053] See Figure 1 , Figure 1 A schematic diagram of a range hood according to an embodiment of the present invention is shown. The range hood provided in this embodiment includes: a fan cabinet 100, a base 200, a smoke collection hood 300, and a first adjustment component 400; the base 200 is connected to the bottom of the fan cabinet 100, and a downwardly extending smoke extraction shell 800 is connected to the first end and the second end of the base 200, which are located on both sides of the central axis of the fan cabinet 100; the smoke collection hood 300 is connected to the corresponding smoke extraction shell 800; the first adjustment component 400 is used to adjust the corresponding smoke collection hood 300 to retract into the corresponding smoke extraction shell 800 or to extend out from the corresponding smoke extraction shell 800.

[0054] As an example, the number of smoking housing 800, smoke collection hood 300, and first adjustment component 400 are all two, such as... Figure 1 As shown, the two smoking shells 800 are respectively disposed on the first and second ends of the base 200, and each smoking shell 800 is connected to a smoke collection hood 300. Each first adjusting component 400 controls the extension and retraction of a smoke collection hood 300. Of course, in some other embodiments, the first and second ends of the base 200 may each be connected to multiple smoking shells 800 arranged in parallel, each smoking shell 800 is connected to a smoke collection hood 300, and each first adjusting component 400 controls the extension and retraction of a smoke collection hood 300.

[0055] As an example, such as Figure 2 As shown, the air handling unit 100 includes: an air handling unit housing 120 communicating with the base 200 and a fan 110 disposed within the air handling unit housing 120.

[0056] As described above, the range hood has smoke collection hoods 300 installed at the first and second ends of the base 200 on both sides of the central axis of the air handling unit 100. This allows the first adjustment component 400 to extend the smoke collection hood 300 that is closer to the smoke into the outside of the corresponding smoke extraction housing 800, and retract the other smoke collection hoods 300 into the corresponding smoke extraction housing 800. In this way, the smoke extraction capacity of the range hood can be concentrated, avoiding the waste of smoke extraction capacity caused by multiple smoke collection hoods 300 working at the same time.

[0057] In some embodiments of the present invention, the range hood further includes a first main controller, which is electrically connected to the first adjustment component 400; such as Figure 1 As shown, a first sensor 510 electrically connected to a first main controller is provided on the first and second ends of the base 200. The first sensor 510 is used to acquire and transmit the oil fume concentration to the first main controller. The first main controller is used to control the first adjustment component 400 to retract the smoke collection hood 300 into the corresponding smoke extraction housing 800 or extend it from the corresponding smoke extraction housing 800 based on the oil fume concentration. The first sensors 510 located on both sides of the central axis of the fan 100 acquire the oil fume concentration of the corresponding area in real time and transmit the oil fume concentration to the first main controller. When the oil fume concentration of a certain area on one side of the central axis of the fan 100 reaches the preset oil fume concentration, the first main controller controls the corresponding first adjustment component 400 to extend the corresponding smoke collection hood 300 from the corresponding smoke extraction housing 800 to start smoke extraction. After cooking stops, when the oil fume concentration in one side of the range hood falls below the preset oil fume concentration, the first main controller controls the corresponding first adjustment component 400 to retract the corresponding smoke collection hood 300 into the corresponding smoke extraction housing 800. This prevents the oil fumes remaining inside the range hood from escaping outwards through the smoke collection hood 300. Therefore, the above-mentioned range hood allows users to automatically activate only one side of the smoke collection hood 300 when cooking on a single burner. Compared to existing technologies with only one smoke extraction port, it consumes less energy while achieving the same smoke extraction effect. It also improves the automation level of the range hood, enhances the user experience, and automatically retracts the smoke collection hood 300 into the corresponding smoke extraction housing 800 after cooking, preventing the oil fumes inside the range hood from escaping outwards.

[0058] Optionally, the first main controller can be the main controller of the air handling unit 100, or it can be a main controller independent of the main controller of the air handling unit 100.

[0059] Furthermore, in some embodiments of the present invention, such as Figure 1As shown, a second sensor 520 electrically connected to the main controller is provided at the bottom of the fume hood 300. The second sensor 520 is used to acquire and transmit the distance between the fume hood 300 and the cooking utensils to the first main controller. The first main controller is also used to adjust the length of the fume hood 300 retracted into the smoke extraction housing 800 or the length of the fume hood extending out of the smoke extraction housing 800 based on the distance between the fume hood 300 and the cooking utensils through the first adjustment component 400. The second sensor 520 at the bottom of the fume hood 300 ensures that the fume hood 300 maintains a certain distance (e.g., greater than or equal to 20cm and less than or equal to 50cm) from the top of the cooking utensils through lifting and lowering, ensuring that the fume hood 300 can effectively absorb cooking fumes while also preventing the user from touching the range hood while cooking. When the oil fume concentration on one side of the central axis of the blower 100 reaches the preset oil fume concentration, the first main controller drives the corresponding smoke collection hood 300 to extend outward through the corresponding first adjustment component 400 until the corresponding smoke collection hood 300 reaches the preset distance (e.g., greater than or equal to 20cm and less than or equal to 50cm) from the top of the cooking utensils.

[0060] Optionally, the second sensor 520 is an infrared sensor. At least one second sensor 520 is provided at the bottom of each smoke hood 300, for example, one or two second sensors 520 are provided.

[0061] Optionally, the sensing surface 521 of the second sensor 520 is inclined downwards. The downwardly inclined sensing surface 521 can accurately detect obstacles, improving the detection accuracy of the first sensor 510. Specifically, the angle α between the sensing surface 521 and the vertical direction (see...) Figure 4 It can be greater than or equal to 20° and less than or equal to 80°, for example, it can be 20°, 30°, 40°, 50°, 60°, 70°, 80°, etc.

[0062] Specifically, such as Figure 2 As shown, in some embodiments of the present invention, the first adjustment component 400 includes a first drive member 410 and a first guide rail 420. The first drive member 410 is used to drive the corresponding smoke hood 300 to slide along the first guide rail 420. This type of first drive member 410 allows the corresponding smoke hood 300 to extend or retract along a target direction. Optionally, the first drive member 410 is electrically connected to a first main controller, which controls the extension or retraction of the smoke hood 300. Of course, in other embodiments, the first adjustment component 400 may include a hydraulic cylinder or a pneumatic cylinder, which is connected to the smoke hood 300.

[0063] It should be noted that, in order to ensure that the smoke housing 800 rotates around the base 200, the portion of the smoke housing 800 near the base 200 and located outside the base 200 is deformable. For example, such as... Figure 2The sidewalls of this section, which are away from the central axis of the cabinet, are corrugated pipe or rubber tube structures, while the sidewalls of this section, which are close to the central axis of the cabinet, are rubber sheet structures.

[0064] More specifically, such as Figure 2 As shown, the first drive unit includes a linear motor that can slide along a first guide rail 420, and the housing of the linear motor is connected to the smoke collection hood 300. This type of first drive unit has a simple structure, simplifying the internal structure of the range hood. The first guide rail 420 is disposed within the smoke extraction housing 800, and the extending direction of the first guide rail 420 is the same as the extension / retraction direction of the smoke collection hood 300. Optionally, the connection between the first guide rail 420 and the smoke extraction housing 800, and between the linear motor and the smoke collection hood 300, can be by screw connection or welding, etc.

[0065] Of course, in some other embodiments, the first driving component 410 may include: a motor fixedly disposed within the smoking housing 800, a lead screw connected to the output shaft of the motor, and a lead screw nut connected to the smoke collection hood 300 and fitted onto the lead screw; the lead screw nut or the smoke collection hood 300 slides along the first guide rail 420. For example, the first guide rail 420 is provided with a guide groove, and the smoke collection hood 300 is provided with guide ribs adapted to the guide groove, the guide ribs being slidable along the guide groove.

[0066] In some other embodiments, the first driving member 410 may include: a motor fixedly disposed within the smoking housing 800, a gear connected to the output shaft of the motor, and a rack connected to and meshing with the gear in the smoke collection hood 300; the rack or the smoke collection hood 300 slides along the first guide rail 420. For example, the first guide rail 420 is provided with a guide groove, and the smoke collection hood 300 is provided with guide ribs adapted to the guide groove, the guide ribs being slidable along the guide groove.

[0067] In some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the range hood also includes a second adjustment component 600, which is used to adjust the angle between the smoke extraction housing 800 and the base 200. The second adjustment component 600 includes a second drive member 610 and a rotating member 620. The second drive member 610 drives the rotating member 620 to rotate the smoke extraction housing 800. After the user finishes cooking, the second drive member 610 of the second adjustment component 600 can rotate the smoke extraction housing 800 away from the cooking utensils via the rotating member 620 to prevent the user from bumping into the smoke extraction housing 800 or the smoke collection hood 300. It can be understood that before the range hood starts absorbing smoke, the second drive member 610 of the second adjustment component 600 can rotate the smoke extraction housing 800 towards the cooking utensils via the rotating member 620.

[0068] As an example, the number of second adjustment components 600 is the same as the number of smoking housings 800, and one second adjustment component 600 controls the rotation of one smoking housing 800.

[0069] Optionally, the angle between the smoke-emitting housing 800 and the base 200 can be adjusted between -90° and 90°. It should be noted that when the smoke-emitting housing 800 is positioned downwards and perpendicular to the base 200 (e.g., ...), ... Figures 1 to 3 When the smoking housing 800 is facing upwards and perpendicular to the base 200, the angle between the smoking housing 800 and the base 200 is 90°; when the smoking housing 800 is facing upwards and perpendicular to the base 200, the angle between the smoking housing 800 and the base 200 is -90°; when the smoking housing 800 is horizontal and aligned with the base 200, the angle between the smoking housing 800 and the base 200 is 0°.

[0070] Specifically, in some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the second driving component 610 includes a push rod motor; the rotating component 620 includes a crank, the first end of which is connected to the push rod of the push rod motor, the second end of which is rotatably mounted on the base 200, and the third end of which is connected to the smoking housing 800. The push rod of the push rod motor pushes and pulls the first end of the crank, thereby causing the second end of the crank to rotate, which in turn causes the third end of the crank to drive the smoking housing 800 to rotate. Optionally, the base 200 is connected to a bracket 630 (e.g., Figure 2 and Figure 3 (As shown) is rotatably connected to the third end of the crank. For example... Figure 2 and Figure 3 As shown, the third end of the crank is connected to the side wall of the smoke housing 800 near the central axis of the fan 110.

[0071] Of course, in some other embodiments, the second driving member 610 may include a motor; the rotating member 620 includes a rotating wheel disposed on the output shaft of the motor; the rotating wheel is connected to the smoking housing 800. When the motor rotates, it can drive its own output shaft to rotate, which in turn can drive the rotating wheel to drive the smoking housing 800 to rotate.

[0072] Furthermore, in some embodiments of the present invention, the range hood further includes a second main controller, which is electrically connected to the second adjustment component 600; third sensors electrically connected to the second main controller are provided on the first and second ends of the base 200; the third sensors are used to acquire and transmit the oil fume concentration to the second main controller; the second main controller is used to adjust the angle between the smoke extraction shell 800 and the base 200 based on the oil fume concentration through the second adjustment component 600. The third sensors on both sides of the central axis of the fan 100 acquire the oil fume concentration of the corresponding area in real time and transmit the oil fume concentration to the second main controller. When the oil fume concentration in a certain area on one side of the central axis of the fan 100 reaches the preset oil fume concentration, the second main controller controls the corresponding smoke extraction shell 800 to rotate towards the direction of the cooking utensils through the corresponding second adjustment component 600, for example, rotating downwards until the angle between it and the base 200 is 90°. After cooking is finished, when the oil fume concentration in a certain area is lower than the preset oil fume concentration, the second main controller controls the corresponding smoke extraction housing 800 to rotate away from the cooking pot through the corresponding second adjustment component 600, for example, rotating upwards until the angle between it and the base 200 is 0°.

[0073] Optionally, the third sensor can be the same sensor as the first sensor 510. The second main controller is electrically connected to the second drive 610 of the second adjustment component 600. The second main controller can be the main controller of the blower 100, or it can be a main controller independent of the main controller of the blower 100, or it can be the same main controller as the first main controller. When the oil fume concentration in a certain area on one side of the central axis of the blower 100 is greater than the preset concentration, the main controller drives the smoke extraction housing 800 to rotate towards the cooking utensils through the second adjustment component 600, and drives the smoke collection hood 300 to extend outward through the first adjustment component 400 until the smoke collection hood 300 reaches a preset distance from the top of the cooking utensils. When the oil fume concentration in that certain area is less than the preset concentration, the main controller drives the smoke collection hood 300 to retract into the smoke extraction housing 800 through the first adjustment component 400, and drives the smoke extraction housing 800 to rotate away from the cooking utensils through the second adjustment component 600.

[0074] Furthermore, such as Figure 2As shown, in some embodiments of the present invention, the range hood further includes a third adjustment component 700, which controls the corresponding smoke extraction housing 800 to retract into or extend from the base 200. When the oil fume concentration on one side of the central axis of the fan 110 is greater than a preset concentration, the corresponding third adjustment component 700 extends the corresponding smoke extraction housing 800 from the base 200, and then the second adjustment component 600 rotates the smoke extraction housing 800 towards the cooking utensils. The first adjustment component 400 extends the smoke collection hood 300 from the smoke extraction housing 800 to extract smoke. After cooking is finished, the corresponding third adjustment component 700 retracts the corresponding smoke extraction housing 800 into the base 200, reducing the space occupied by the range hood.

[0075] As an example, the number of third adjustment components 700 is the same as the number of smoking housings 800, and one third adjustment component 700 controls one smoking extension / retraction. The structure of the third adjustment component 700 can be the same as the structure of the first adjustment component 400, for example, such as... Figure 2 As shown, the third adjustment component 700 includes: a third drive member 710 and a second guide rail 720. The third drive member 710 is used to drive the corresponding smoking shell 800 to slide along the second guide rail 720; wherein the structure of the third drive member 710 is the same as the structure of the first drive member 410.

[0076] Furthermore, in some embodiments of the present invention, the range hood further includes a third main controller, which is electrically connected to the third adjustment component 700; a fourth sensor electrically connected to the third main controller is provided on the first and second ends of the base 200, the fourth sensor being used to acquire and transmit the oil fume concentration to the third main controller; the third main controller is used to control the corresponding third adjustment component 700 to retract the corresponding smoke extraction shell 800 into the base 200 or extend it from the base 200 based on the oil fume concentration. The fourth sensors on both sides of the central axis of the fan cabinet 100 acquire the oil fume concentration of the corresponding area in real time and transmit the oil fume concentration to the third main controller. When the oil fume concentration in a certain area on one side of the central axis of the fan cabinet 100 reaches a preset oil fume concentration, the third main controller controls the corresponding smoke extraction shell 800 to extend from the base 200 through the corresponding third adjustment component 700. After cooking is finished, when the oil fume concentration in that certain area is lower than the preset oil fume concentration, the third main controller controls the corresponding smoke extraction shell 800 to retract into the base 200 through the corresponding third adjustment component 700.

[0077] Optionally, the fourth sensor may be the same sensor as the first sensor 510 and the third sensor. The third main controller can be the main controller of the blower 100, or it can be a main controller independent of the main controller of the blower 100, or it can be the same main controller as the first and second main controllers. When the oil fume concentration in a certain area on one side of the central axis of the blower 100 is greater than the preset concentration, the main controller first extends the corresponding smoke extraction shell 800 from the base 200 through the third adjustment component 700, then drives the smoke extraction shell 800 to rotate towards the cooking utensils through the second adjustment component 600, and finally drives the smoke collection hood 300 to extend outward through the first adjustment component 400 until the smoke collection hood 300 reaches the preset distance from the top of the cooking utensils. When the oil fume concentration in that certain area is less than the preset concentration, the main controller drives the smoke collection hood 300 to retract into the smoke extraction shell 800 through the first adjustment component 400, and drives the corresponding smoke extraction shell 800 to rotate away from the cooking utensils through the second adjustment component 600, and finally retracts the corresponding smoke extraction shell 800 into the base 200 through the third drive component.

[0078] Another embodiment of the present invention provides a control method for a range hood, characterized in that the control method includes:

[0079] Step S100: Obtain and transmit the oil fume concentration on both sides of the central axis of the fan 110 of the range hood;

[0080] Step S200: Based on the oil fume concentration, retract the corresponding smoke collection hood 300 in the range hood into the corresponding smoke extraction housing 800 in the range hood or extend it out from the corresponding smoke extraction housing 800.

[0081] As described above, the range hood control method involves setting smoke collection hoods 300 on the first and second ends of the base 200 located on both sides of the central axis of the air handling unit 100. This allows the first adjustment component 400 to extend the smoke collection hood 300 that is closer to the oil fumes to the outside of the corresponding smoke extraction housing 800, while retracting the other smoke collection hoods 300 into the corresponding smoke extraction housing 800. In this way, the smoke extraction capacity of the range hood can be concentrated, avoiding the waste of smoke extraction capacity caused by multiple smoke collection hoods 300 working at the same time.

[0082] During the execution of step S200, the control method described above further includes:

[0083] Step S300: Obtain and send the distance between the corresponding fume hood 300 and the cooking utensils;

[0084] Step S400: Based on the distance between the corresponding smoke hood 300 and the cooking utensils, adjust the length of the corresponding smoke hood 300 retracting into the corresponding smoke shell 800 or extending out of the corresponding smoke shell 800.

[0085] In this way, the fume hood 300 is kept at a certain distance from the top of the cooking utensils by lifting and lowering (for example, greater than or equal to 20cm and less than or equal to 50cm), which ensures that the fume hood 300 can absorb oil fumes well, while also preventing users from touching the range hood while cooking.

[0086] In some embodiments of the present invention, the control method further includes:

[0087] Step S500: Based on the concentration of cooking fumes, adjust the angle between the corresponding fume extraction housing 800 and the base 200 of the range hood. It should be noted that step S500 is performed before step S200 during fume extraction. After fume extraction is complete, step S500 can be performed before, after, or simultaneously with step S200.

[0088] In this way, after the user finishes cooking, the position of the smoke extraction housing 800 can be adjusted to prevent the user from bumping into the smoke extraction housing 800 or the smoke collection hood 300.

[0089] Furthermore, in some embodiments of the present invention, before performing step S500, the control method further includes: step S600, based on the oil fume concentration, retracting the corresponding smoke shell 800 into the base 200 or extending it out from the base 200.

[0090] In this way, after cooking is finished, the corresponding smoke extraction shell 800 can be stored in the base 200, reducing the space occupied by the range hood.

[0091] Another embodiment of the present invention provides a computer-readable storage medium storing a computer program, characterized in that the computer program, when executed by a processor, implements the steps of the control method described in any of the preceding claims.

[0092] It is understood that the technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0093] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A range hood, characterized by The oil fume machine comprises a wind cabinet, a base, a smoke collecting hood and a first adjusting assembly. The base is communicated with the bottom of the wind cabinet, and first and second ends of the base are communicated with downwardly extending smoke suction housings. The smoke collecting hood is communicated with the corresponding smoke suction housing. The first adjusting assembly is used for adjusting the smoke collecting hood to retract into or extend out of the corresponding smoke suction housing. The oil fume machine further comprises a first main controller which is electrically connected with the first adjusting assembly. First sensors which are electrically connected with the first main controller are arranged on the first and second ends of the base, and the first sensors are used for acquiring and transmitting oil fume concentration to the first main controller. The first main controller is used for controlling the first adjusting assembly to retract the smoke collecting hood into or extend the smoke collecting hood out of the corresponding smoke suction housing based on the oil fume concentration. The oil fume machine further comprises a second adjusting assembly which is used for adjusting the included angle between the smoke suction housing and the base, and the number of the second adjusting assembly is the same as that of the smoke suction housing, and one second adjusting assembly is used for controlling one corresponding smoke suction housing to rotate. The second adjusting assembly comprises a second driving member and a rotating member, and the second driving member is used for driving the rotating member to drive the smoke suction housing to rotate. Second sensors which are electrically connected with the first main controller are arranged on the smoke collecting hood, and the second sensors are used for acquiring and transmitting the distance between the smoke collecting hood and a cooking utensil to the first main controller.

2. The range hood according to claim 1, characterized in that The first main controller is further used for adjusting the length of the smoke collecting hood retracted into or extended out of the smoke suction housing by the first adjusting assembly based on the distance between the smoke collecting hood and the cooking utensil. The sensing surface of the second sensor is downwardly inclined.

3. The range hood according to claim 2, wherein The included angle between the sensing surface and the vertical direction is greater than or equal to 20° and less than or equal to 80°.

4. The range hood according to claim 3, wherein The first adjusting assembly comprises a first driving member and a first guide rail, and the first driving member is used for driving the corresponding smoke collecting hood to slide along the first guide rail.

5. The range hood according to any one of claims 1-4, characterized in that The first guide rail is arranged in the smoke suction housing.

6. The range hood according to claim 5, wherein The first driving member comprises a linear motor which can slide along the first guide rail, and the housing of the linear motor is connected with the smoke collecting hood. The oil fume machine further comprises a second main controller which is electrically connected with the second adjusting assembly.

7. The range hood according to claim 1, wherein Third sensors which are electrically connected with the second main controller are arranged on the first and second ends of the base, and the third sensors are used for acquiring and transmitting oil fume concentration to the second main controller. The second main controller is used for adjusting the included angle between the smoke suction housing and the base by the second adjusting assembly based on the oil fume concentration. The second driving member comprises a push rod motor.

8. The range hood according to claim 1, characterized in that The rotating member comprises a crank, a first end of the crank is connected with a push rod of the push rod motor, a second end of the crank is rotatably arranged on the base, and a third end of the crank is connected with the smoke suction housing. ​ 9. The range hood according to claim 1, characterized in that The range hood further comprises a third adjusting assembly for controlling the corresponding smoke suction shell to retract into or extend out of the base.

10. The range hood according to claim 9, characterized in that The range hood further comprises a third main controller electrically connected with the third adjusting assembly. The first end and the second end of the base are provided with a fourth sensor electrically connected with the third main controller, and the fourth sensor is used to acquire and transmit the oil fume concentration to the third main controller. The third main controller is used to control the corresponding third adjusting assembly to retract the corresponding smoke suction shell into or extend the corresponding smoke suction shell out of the base based on the oil fume concentration.

11. A control method of a range hood according to any one of claims 1 to 10, characterized in that, The control method comprises: acquiring and transmitting the oil fume concentration on both sides of the central axis of the fan of the range hood; based on the oil fume concentration, retracting or extending the corresponding smoke collecting cover into or out of the corresponding smoke suction shell of the range hood; based on the oil fume concentration, adjusting the included angle between the corresponding smoke suction shell and the base of the range hood.

12. The control method according to claim 11, characterized by, In the process of retracting or extending the corresponding smoke collecting cover into or out of the corresponding smoke suction shell of the range hood, the control method further comprises: acquiring and transmitting the distance between the corresponding smoke collecting cover and the cooking utensil; based on the distance between the corresponding smoke collecting cover and the cooking utensil, adjusting the length of the corresponding smoke collecting cover retracted into or extended out of the corresponding smoke suction shell.

13. The control method according to claim 11, characterized by, Before adjusting the included angle between the corresponding smoke suction shell and the base of the range hood, the control method further comprises: based on the oil fume concentration, retracting or extending the corresponding smoke suction shell into or out of the base.

14. A computer-readable storage medium, characterized in that, A computer program is stored thereon, characterized in that the computer program is executed by a processor to realize the steps of the control method of any one of claims 11 to 13.

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