Oil smoke control device of range hood, oil smoke zoning control method and range hood

Abstract

The invention provides an oil smoke control device of a range hood, an oil smoke zoning control method and the range hood, a smoke inlet area of the range hood comprises a left smoke inlet and a right smoke inlet, the oil smoke control device of the range hood is arranged in a smoke inlet cavity of the range hood, and the left side and the right side of the oil smoke control device are each provided with a first rotating baffle and a second rotating baffle; a first-stage power device and a second-stage power device are arranged in the oil smoke control device, and are respectively used for driving the two first rotating baffles and the two second rotating baffles to rotate; the first-stage power device and the second-stage power device are further used for determining the opening and closing angles of the two first rotating baffles and the two second rotating baffles based on the oil smoke concentration of the left smoke inlet and the oil smoke concentration of the right smoke inlet correspondingly. The opening angle represents the included angle between the rotary baffle and the side wall of the smoke inlet cavity. The negative pressure range of the negative pressure area of the smoke suction port of the range hood head can be actively regulated and controlled, lampblack is prevented from escaping, lampblack is accurately controlled, and intelligent lampblack suction and exhaust of the range hood are achieved.

Description

Technical Field

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

[0002] Most range hoods on the market currently use a head smoke collection structure that is generally an open "Γ" shape, including a back panel and a top panel. The smoke inlet is set on the back panel near the top panel. Since the back panel is a flat panel, there is a problem of smoke leakage on both sides of the back panel when the smoke is discharged. The conventional solution is to solve the smoke leakage problem by increasing the maximum air volume and increasing the maximum static pressure. However, based on the ventilation conditions of the kitchen, the smoke collection and exhaust effects of the range hood are not good when there is wind.

[0003] Due to indoor air mobility and other reasons, the oil smoke generated during cooking will diffuse in an undirected manner. The range hood cannot absorb all the oil smoke, and some of the oil smoke will diffuse into the kitchen space, causing kitchen air pollution. How to reduce the amount of oil smoke diffused into the kitchen is an important issue that needs to be solved. The smoke outlet of the existing range hood head is set behind the cooking pot, and the negative pressure area is far away from the center of the cooking pot, resulting in the negative pressure area being unable to effectively cover the path of the oil smoke rising, increasing the possibility of smoke leakage. Summary of the invention

[0004] In view of this, an object of the present invention is to provide an oil fume control device, an oil fume zoning control method and a range hood for a range hood, wherein the first rotating baffle and the second rotating baffle on the left and right sides are driven to rotate by the first-stage power unit and the second-stage power unit respectively, thereby purifying the oil fume on the left smoke inlet and the right smoke inlet respectively, and the negative pressure range of the negative pressure zone of the smoke inlet of the range hood head can be actively adjusted to prevent the oil fume from escaping, accurately control the oil fume, and realize the intelligent oil fume suction and exhaust of the range hood.

[0005] In the first aspect, an embodiment of the present invention provides an oil fume control device of a range hood, wherein the smoke intake area of ​​the range hood includes a left smoke inlet and a right smoke inlet, the left smoke inlet and the right smoke inlet are respectively used for purifying oil fume of a left stove and a right stove of the range hood, and the range hood is provided with a smoke intake chamber; the oil fume control device of the range hood is arranged in the smoke intake chamber of the range hood, and a first rotating baffle and a second rotating baffle are both arranged on the left and right sides of the oil fume control device, the two first rotating baffles are both arranged on the outside of the oil fume control device, and the two second rotating baffles are both arranged on the inside of the oil fume control device; a first-stage power device and a second-stage power device are arranged in the oil fume control device, the first-stage power device and the second-stage power device are respectively used for driving the two first rotating baffles and the two second rotating baffles to rotate; the first-stage power device and the second-stage power device are also respectively used for determining the opening and closing angles of the two first rotating baffles and the two second rotating baffles based on the oil fume concentration of the left smoke inlet and the right smoke inlet; the opening and closing angle characterizes the angle between the rotating baffle and the side wall of the smoke intake chamber.

[0006] In an optional embodiment of the present application, the above-mentioned first-stage power device includes: a motor and a gear, the gear of the first rotating baffle is engaged with the gear of the first-stage power device, and the motor is connected to the gear of the first-stage power device; the motor drives the gear of the first-stage power device to rotate the first rotating baffle.

[0007] In an optional embodiment of the present application, the above-mentioned second-stage power device includes: a pneumatic push rod, a slider, a slide groove, and a gear bar. The slider is arranged in the slide groove, and the pneumatic push rod is connected to the slider; the pneumatic push rod controls the slider to move back and forth in the slide groove; a gear bar is fixed on the slider, and the gear bar engages with the gear on the second rotating baffle, and the gear bar drives the gear on the second rotating baffle to rotate the second rotating baffle.

[0008] In an optional embodiment of the present application, when the pneumatic push rod is extended, it drives the second rotating baffle on the right to rotate to determine the opening and closing angle of the second rotating baffle on the right; when the pneumatic push rod is contracted, it drives the second rotating baffle on the left to rotate to determine the opening and closing angle of the second rotating baffle on the left.

[0009] In an optional embodiment of the present application, the smoke inlet chamber is provided with ribs, and the smoke inlet chamber of the range hood is divided into a left smoke inlet and a right smoke inlet through the ribs.

[0010] In an optional embodiment of the present application, a range hood smoke baffle is fixed above the smoke inlet chamber of the above-mentioned range hood, and oil fume concentration monitors are respectively arranged on both sides of the smoke baffle. The oil fume concentration monitor arranged on the left side is used to detect the oil fume concentration of the left smoke inlet, and the oil fume concentration monitor arranged on the right side is used to detect the oil fume concentration of the right smoke inlet.

[0011] In a second aspect, an embodiment of the present invention further provides a method for controlling oil fume zoning of a range hood, which is applied to the oil fume control device of the range hood described above, and the method comprises: determining the on status of the left stove and the right stove of the range hood; when the left stove of the range hood is turned on and the right stove is not turned on, opening the left smoke inlet of the range hood and closing the right smoke inlet of the range hood, driving the first rotating baffle and the second rotating baffle on the left side to rotate, and determining the opening and closing angles of the first rotating baffle and the second rotating baffle on the left side based on the oil fume concentration of the left smoke inlet; when the right stove of the range hood is turned on and the left stove is not turned on When the stove is not turned on, the right smoke inlet of the range hood is opened and the left smoke inlet of the range hood is closed, which drives the first and second rotating baffles on the right side to rotate, and the opening and closing angles of the first and second rotating baffles on the right side are determined based on the smoke concentration of the right smoke inlet; when the right stove and the left stove of the range hood are both turned on, the left and right smoke inlets of the range hood are opened, which drives the first and second rotating baffles on the left and right sides to rotate, and the opening and closing angles of the first and second rotating baffles on the left and right sides are determined based on the smoke concentration of the left and right smoke inlets.

[0012] In an optional embodiment of the present application, the initial opening and closing angle of the first rotating baffle is α0, and the initial opening and closing angle of the second rotating baffle is α0; when the left-side cooker of the range hood is turned on and the right-side cooker is not turned on, the step of determining the opening and closing angles of the first rotating baffle and the second rotating baffle on the left side based on the oil fume concentration of the left smoke inlet comprises: if the oil fume concentration of the left smoke inlet is less than or equal to a preset first threshold value, determining the opening and closing angle of the first rotating baffle on the left side to be α0+γ0, and the opening and closing angle of the second rotating baffle on the left side to be α0+δ0; if the oil fume concentration of the left smoke inlet is greater than the first threshold value, determining the opening and closing angle of the first rotating baffle on the left side to be α0+γ1, and the opening and closing angle of the second rotating baffle on the left side to be α0+δ0. The opening and closing angle of the baffle is α0+δ1; wherein, γ1>δ1>γ0>δ0>0; and / or, when the right-side cooker of the range hood is turned on and the left-side cooker is not turned on, the step of determining the opening and closing angles of the first rotating baffle and the second rotating baffle on the right side based on the oil fume concentration of the right smoke inlet comprises: if the oil fume concentration of the right smoke inlet is less than or equal to a first threshold value, determining that the opening and closing angle of the first rotating baffle on the right side is α0+γ0, and the opening and closing angle of the second rotating baffle on the right side is α0+δ0; if the oil fume concentration of the right smoke inlet is greater than the first threshold value, determining that the opening and closing angle of the first rotating baffle on the right side is α0+γ1, and the opening and closing angle of the second rotating baffle on the right side is α0+δ1.

[0013] In an optional embodiment of the present application, when the right-side cooker and the left-side cooker of the range hood are both turned on, the step of determining the opening and closing angles of the first rotating baffle on the left and right sides based on the oil fume concentrations of the left smoke inlet and the right smoke inlet includes: if the average value of the oil fume concentration of the left smoke inlet and the oil fume concentration of the right smoke inlet is less than or equal to a first threshold value, determining the opening and closing angles of the first rotating baffle on the left / right side to be α0+m1×γ0, and the opening and closing angles of the second rotating baffle on the left / right side to be α0+m2×δ0; if the average value of the oil fume concentration of the left smoke inlet and the oil fume concentration of the right smoke inlet is greater than the first threshold value, determining the opening and closing angles of the first rotating baffle on the left / right side to be α0+m3×γ1, and the opening and closing angles of the second rotating baffle on the left / right side to be α0+m4×δ1; wherein, m3>m1>1>m4>m2>0, γ1>δ1>γ0>δ0>0.

[0014] In a third aspect, an embodiment of the present invention further provides a range hood, the range hood comprising: the above-mentioned range hood fume control device.

[0015] The embodiments of the present invention bring the following beneficial effects:

[0016] The embodiments of the present invention provide an oil fume control device, an oil fume zoning control method and a range hood for a range hood, wherein the first and second rotating baffles on the left and right sides are driven to rotate by the first-stage power unit and the second-stage power unit respectively, thereby purifying the oil fume on the left and right smoke inlets respectively. The negative pressure range of the negative pressure zone of the smoke inlet of the range hood head can be actively regulated to prevent the oil fume from escaping, accurately control the oil fume, and realize the intelligent oil fume suction and exhaust of the range hood.

[0017] Other features and advantages of the present disclosure will be set forth in the following description, or some features and advantages may be inferred or unambiguously determined from the description, or may be learned by implementing the above-mentioned technology of the present disclosure.

[0018] In order to make the above-mentioned objectives, features and advantages of the present disclosure more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the external structure of a range hood provided by an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the internal structure of a range hood provided by an embodiment of the present invention;

[0022] Figure 3 A schematic structural diagram of a range hood fume control device provided by an embodiment of the present invention;

[0023] Figure 4 A schematic diagram of an opening and closing angle provided by an embodiment of the present invention;

[0024] Figure 5 A schematic structural diagram of a first-stage power device provided in an embodiment of the present invention;

[0025] Figure 6 A schematic diagram of the structure of a second-stage power device provided by an embodiment of the present invention;

[0026] Figure 7 The present invention provides a flow chart of a method for controlling oil fume zoning of a range hood according to an embodiment of the present invention.

[0027] Icons: 1-range hood; 2-stove; 3-fan box; 11-smoke baffle; 22-smoke inlet; 33-smoke concentration monitor; 5-smoke control device; 12-smoke inlet chamber; 51-first rotating baffle; 61-second rotating baffle; 52-first stage power device; 62-second stage power device; 53-motor; 54-gear; 63-pneumatic push rod; 64-slider; 65-slide; 66-gear bar. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] At present, most range hoods on the market use a head smoke collecting structure that is generally an open "Γ" shape, including a back panel and a top panel. The smoke inlet is set on the back panel near the top panel. Since the back panel is a flat panel, there is a problem of smoke leakage on both sides of the back panel when the smoke is discharged. The conventional solution is to solve the smoke leakage problem by increasing the maximum air volume and increasing the maximum static pressure. However, based on the ventilation conditions of the kitchen, the smoke intake and exhaust effects of the range hood are not good when there is wind.

[0030] Due to indoor air mobility and other reasons, the oil smoke generated during cooking will diffuse in an undirected manner. The range hood cannot absorb all the oil smoke, and some of the oil smoke will diffuse into the kitchen space, causing kitchen air pollution. How to reduce the amount of oil smoke diffused into the kitchen is an important issue that needs to be solved. The smoke outlet of the existing range hood head is set behind the cooking pot, and the negative pressure area is far away from the center of the cooking pot, resulting in the negative pressure area being unable to effectively cover the path of the oil smoke rising, increasing the possibility of smoke leakage.

[0031] Therefore, in the prior art, the smoke inlet of the range hood head is set behind the cooking pot, and the negative pressure zone is far away from the center of the cooking pot, resulting in the negative pressure zone being unable to effectively cover the rising path of the oil smoke, resulting in an increased possibility of smoke leakage from the side of the range hood.

[0032] Based on this, an oil fume control device, an oil fume zoning control method and a range hood for a range hood provided in an embodiment of the present invention specifically provide an oil fume control structure and a control method for a range hood, wherein the first and second rotating baffles on the left and right sides are driven to rotate by a first-stage power unit and a second-stage power unit respectively, thereby purifying the oil fume on the left and right smoke inlets respectively, and can actively adjust the negative pressure range of the negative pressure zone of the smoke inlet of the range hood head to prevent the oil fume from escaping, accurately control the oil fume, and realize the intelligent oil fume suction and exhaust of the range hood.

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

[0034] Embodiment 1:

[0035] The embodiment of the present invention provides a range hood fume control device, which can Figure 1 A schematic diagram of the external structure of a range hood is shown, wherein the smoke inlet area of ​​the range hood includes a left smoke inlet and a right smoke inlet, the left smoke inlet and the right smoke inlet are respectively used to purify the smoke of the left stove and the right stove of the range hood, and the range hood is provided with a smoke inlet chamber.

[0036] like Figure 1 As shown, Figure 1 The range hood 1, the stove 2, the fan box 3, the smoke baffle 11, the smoke inlet 22 and the smoke concentration monitor 33 are shown. The smoke inlet 22 includes a left smoke inlet and a right smoke inlet, and the stove 2 includes a left stove and a right stove. The range hood in this embodiment can be an integrated stove or a split range hood.

[0037] In some embodiments, the smoke inlet cavity is provided with ribs, and the smoke inlet cavity of the range hood is divided into a left smoke inlet and a right smoke inlet through the ribs.

[0038] like Figure 1As shown, in this embodiment, the smoke inlet cavity of the range hood can be divided into a left smoke inlet and a right smoke inlet by ribs, and the left smoke inlet and the right smoke inlet are respectively responsible for purifying the oil smoke of the left stove and the right stove of the range hood.

[0039] In some embodiments, a range hood smoke baffle is fixed above the smoke inlet chamber of the range hood, and oil fume concentration monitors are respectively arranged on both sides of the smoke baffle. The oil fume concentration monitor arranged on the left side is used to detect the oil fume concentration of the left smoke inlet, and the oil fume concentration monitor arranged on the right side is used to detect the oil fume concentration of the right smoke inlet.

[0040] like Figure 1 As shown, a range hood smoke baffle 11 can be fixed above the smoke inlet chamber of the range hood 1, and smoke concentration monitors 33 are arranged on both sides of the smoke baffle 11. The smoke concentration monitors 33 on both sides respectively monitor the smoke leakage on both sides of the smoke baffle, that is, respectively detect the smoke concentration of the left smoke inlet and the right smoke inlet.

[0041] Based on the above description, see Figure 2 The internal structure diagram of a range hood shown in FIG. Figure 3 A structural schematic diagram of an oil fume control device of a range hood is shown, in which the oil fume control device 5 of the range hood is arranged in the smoke inlet chamber 12 of the range hood, and a first rotating baffle 51 and a second rotating baffle 61 are arranged on the left and right sides of the oil fume control device 5, the two first rotating baffles 51 are arranged on the outside of the oil fume control device 5, and the two second rotating baffles 61 are arranged on the inside of the oil fume control device 5.

[0042] like Figure 3 As shown, the oil smoke control device 5 is provided with a first-stage power device 52 and a second-stage power device 62, and the first-stage power device 52 and the second-stage power device 62 are used to drive two first rotating baffles 51 and two second rotating baffles 61 to rotate respectively;

[0043] like Figure 3 As shown, in this embodiment, two first-stage power devices 52 and one second-stage power device 62 can be provided. The two first-stage power devices 52 can respectively drive the two first rotating baffles 51 to rotate, and the one second-stage power device 62 can drive the two second rotating baffles 61 to rotate.

[0044] The first-stage power device and the second-stage power device are also used to determine the opening and closing angles of the two first rotating baffles and the two second rotating baffles based on the oil smoke concentration of the left smoke inlet and the right smoke inlet respectively; the opening and closing angle represents the angle between the rotating baffle and the side wall of the smoke inlet chamber.

[0045] like Figure 1As shown, the oil fume concentration monitor 33 arranged on the left side of the smoke baffle 11 can detect the oil fume concentration of the left smoke inlet, and the oil fume concentration monitor 33 arranged on the right side of the smoke baffle 11 can detect the oil fume concentration of the right smoke inlet.

[0046] Therefore, if Figure 3 As shown, the two first-stage motors 52 can determine the opening and closing angles of the left and right first rotating baffles 51 based on the oil fume concentration of the left smoke inlet and the oil fume concentration of the right smoke inlet, respectively. The one second-stage motor 62 can determine the opening and closing angles of the left and right second rotating baffles 61 based on the oil fume concentration of the left smoke inlet and the oil fume concentration of the right smoke inlet, respectively.

[0047] For the concept of the above opening and closing angle, please refer to Figure 4 A schematic diagram of an opening and closing angle is shown, in which the angle between the first rotating baffle 51 and the side wall of the smoke inlet chamber 12 is α, that is, the opening and closing angle of the first rotating baffle 51 is α; the angle between the second rotating baffle 61 and the side wall of the smoke inlet chamber 12 is β, that is, the opening and closing angle of the second rotating baffle 61 is β.

[0048] For the specific structure of the first stage power unit, please refer to Figure 5 A structural schematic diagram of a first-stage power device is shown. In some embodiments, the first-stage power device includes: a motor 53 and a gear 54. The gear of the first rotating baffle 51 is engaged with the gear 54 of the first-stage power device 52, and the motor 53 is connected to the gear 54 of the first-stage power device 52; the motor 53 drives the gear 54 to rotate the first rotating baffle 51.

[0049] For the specific structure of the second stage power unit, please refer to Figure 6 A structural schematic diagram of a second-stage power device is shown. In some embodiments, the above-mentioned second-stage power device includes: a pneumatic push rod 63, a slider 64, a slide groove 65, and a gear bar 66. The slider 64 is arranged in the slide groove 65, and the pneumatic push rod 63 is connected to the slider 64; the pneumatic push rod 63 controls the slider 64 to move back and forth in the slide groove 65; the gear bar 66 is fixed on the slider 64, and the gear bar 66 is engaged with the gear on the second rotating baffle 61, and the gear bar 66 drives the gear on the second rotating baffle 61 to rotate the second rotating baffle 61.

[0050] In this embodiment, one second-stage power device can drive two second rotating baffles to rotate. Figure 6 As shown, when the pneumatic push rod 63 is extended, it drives the second rotating baffle 61 on the right side to rotate, so as to determine the opening and closing angle of the second rotating baffle 61 on the right side, that is, to adjust the angle between the second rotating baffle 61 on the right side and the side wall of the smoke inlet chamber; when the pneumatic push rod 63 is contracted, it drives the second rotating baffle 61 on the left side to rotate, so as to determine the opening and closing angle of the second rotating baffle 61 on the left side, that is, to adjust the angle between the second rotating baffle on the left side and the side wall of the smoke inlet chamber.

[0051] An embodiment of the present invention provides an oil fume control device for a range hood, which drives the first rotating baffle on the left and the second rotating baffle on the right to rotate respectively by the first-stage power unit and the second-stage power unit, thereby purifying the oil fume on the left smoke inlet and the right smoke inlet respectively. The negative pressure range of the negative pressure zone of the smoke inlet of the range hood head can be actively adjusted to prevent the oil fume from escaping, accurately control the oil fume, and realize the intelligent oil fume suction and exhaust of the range hood.

[0052] Embodiment 2:

[0053] The embodiment of the present invention provides a range hood oil fume zoning control method, which is applied to the range hood oil fume control device provided in the above embodiment, see Figure 7 The flowchart of a method for controlling oil fume zoning of a range hood is shown, and the method for controlling oil fume zoning of a range hood comprises the following steps:

[0054] Step S702, determining the opening status of the left stove and the right stove of the range hood.

[0055] First, in the starting state, the baffle position can be initialized, that is, the opening and closing angles of the first rotating baffle are initialized to α0, and the opening and closing angles of the second rotating baffle are initialized to α0. Turn on the stove and identify the opening states of the left stove and the right stove. The opening states of the stove in this embodiment can be divided into three states: only the left stove is turned on, only the right stove is turned on, and the left stove and the right stove are turned on at the same time; the smoke concentration monitor is started in each of the three states to monitor the oil smoke concentration. Control is performed by judging the smoke concentration content on the side.

[0056] In this embodiment, a first threshold a1 may be provided, which may be divided into two levels: less than or equal to the first threshold a1 (ie, 0-a1) and greater than the first threshold a1 (ie, >a1). When the side fume concentration monitor identifies that fume is escaping from the side, the fume control device may be activated.

[0057] Step S704, when the left stove of the range hood is turned on and the right stove is not turned on, the left smoke inlet of the range hood is opened and the right smoke inlet of the range hood is closed, driving the first rotating baffle and the second rotating baffle on the left side to rotate, and determining the opening and closing angles of the first rotating baffle and the second rotating baffle on the left side based on the smoke concentration of the left smoke inlet.

[0058] When the stove is in the on state that only the left side of the stove is turned on, the left smoke inlet of the range hood can be opened and the right smoke inlet of the range hood can be closed, driving the first rotating baffle and the second rotating baffle on the left side to rotate, and the opening and closing angles of the first rotating baffle and the second rotating baffle on the left side are determined based on the smoke concentration detected by the left smoke concentration monitor.

[0059] In some embodiments, if the oil smoke concentration of the left smoke inlet is less than or equal to a preset first threshold, the opening and closing angle of the first rotating baffle on the left is determined to be α0+γ0, and the opening and closing angle of the second rotating baffle on the left is determined to be α0+δ0; if the oil smoke concentration of the left smoke inlet is greater than the first threshold, the opening and closing angle of the first rotating baffle on the left is determined to be α0+γ1, and the opening and closing angle of the second rotating baffle on the left is determined to be α0+δ1; wherein, γ1>δ1>γ0>δ0>0;

[0060] When the left stove is turned on, the oil fume control device can close the right baffle of the right smoke inlet; adjust the opening and closing angles of the first and second rotating baffles on the left: if the oil fume concentration of the left smoke inlet is 0-a1, the opening and closing angles of the first rotating baffle on the left are α0+γ0, and the opening and closing angles of the second rotating baffle on the left are α0+δ0; if the oil fume concentration of the left smoke inlet is >a1, the opening and closing angles of the first rotating baffle on the left are α0+γ1, and the opening and closing angles of the second rotating baffle on the left are α0+δ1, (γ1>δ1>γ0>δ0>0).

[0061] In order to solve the problem of side smoke leakage, in this embodiment, the opening and closing angle of the first rotating baffle (α0+γ1) can be set to be greater than the opening and closing angle of the second rotating baffle (α0+δ1).

[0062] Step S706, when the right stove of the range hood is turned on and the left stove is not turned on, the right smoke inlet of the range hood is opened and the left smoke inlet of the range hood is closed, driving the first rotating baffle and the second rotating baffle on the right side to rotate, and determining the opening and closing angles of the first rotating baffle and the second rotating baffle on the right side based on the smoke concentration of the right smoke inlet.

[0063] When the stove is in the on state that only the right side of the stove is turned on, the right smoke inlet of the range hood can be opened and the left smoke inlet of the range hood can be closed, driving the first rotating baffle and the second rotating baffle on the right side to rotate, and the opening and closing angles of the first rotating baffle and the second rotating baffle on the right side are determined based on the smoke concentration detected by the right smoke concentration monitor.

[0064] In some embodiments, if the oil smoke concentration at the right smoke inlet is less than or equal to the first threshold value, the opening and closing angle of the first rotating baffle on the right is determined to be α0+γ0, and the opening and closing angle of the second rotating baffle on the right is determined to be α0+δ0; if the oil smoke concentration at the right smoke inlet is greater than the first threshold value, the opening and closing angle of the first rotating baffle on the right is determined to be α0+γ1, and the opening and closing angle of the second rotating baffle on the right is determined to be α0+δ1.

[0065] When the right stove is turned on, the oil fume control device can close the left baffle of the left smoke inlet; adjust the opening and closing angles of the first rotating baffle and the second rotating baffle on the right: if the oil fume concentration of the right smoke inlet is 0-a1, the opening and closing angles of the first rotating baffle on the right are α0+γ0, and the opening and closing angles of the second rotating baffle on the right are α0+δ0; if the oil fume concentration of the right smoke inlet is>a1, the opening and closing angles of the first rotating baffle on the right are α0+γ1, and the opening and closing angles of the second rotating baffle on the right are α0+δ1, (γ1>δ1>γ0>δ0>0.

[0066] Similarly, in order to solve the problem of side smoke leakage, in this embodiment, the opening and closing angle of the first rotating baffle (α0+γ1) can be set to be greater than the opening and closing angle of the second rotating baffle (α0+δ1).

[0067] Step S708, when the right stove and the left stove of the range hood are both turned on, turn on the left smoke inlet and the right smoke inlet of the range hood, drive the first rotating baffle and the second rotating baffle on the left and the right sides to rotate, and determine the opening and closing angles of the first rotating baffle and the second rotating baffle on the left and the right sides based on the oil smoke concentration of the left smoke inlet and the right smoke inlet.

[0068] When the stove is in the open state of the left stove and the right stove are turned on at the same time, the right smoke inlet and the left smoke inlet of the range hood can be opened at the same time, driving the first rotating baffle and the second rotating baffle on the left and right sides to rotate, and the opening and closing angles of the first rotating baffle and the second rotating baffle on the right side are determined based on the smoke concentration detected by the left and right smoke concentration monitors.

[0069] In some embodiments, if the average value of the oil fume concentration of the left smoke inlet and the oil fume concentration of the right smoke inlet is less than or equal to a first threshold value, the opening and closing angle of the first rotating baffle on the left / right side is determined to be α0+m1×γ0, and the opening and closing angle of the second rotating baffle on the left / right side is determined to be α0+m2×δ0; if the average value of the oil fume concentration of the left smoke inlet and the oil fume concentration of the right smoke inlet is greater than the first threshold value, the opening and closing angle of the first rotating baffle on the left / right side is determined to be α0+m3×γ1, and the opening and closing angle of the second rotating baffle on the left / right side is determined to be α0+m4×δ1; wherein, m3>m1>1>m4>m2>0, γ1>δ1>γ0>δ0>0.

[0070] When the left stove and the right stove are turned on at the same time, the oil fume control device adjusts the opening and closing angles of the first rotating baffle and the second rotating baffle on the left and right sides, and when the average value of the oil fume concentration of the left smoke inlet and the average value of the oil fume concentration of the right smoke inlet is 0-a1, the opening and closing angles of the first rotating baffle on the left and right sides can be α0+m1×γ0; the opening and closing angles of the second rotating baffle on the left and right sides can be α0+m2×δ0, and when the average value of the oil fume concentration of the left smoke inlet and the average value of the oil fume concentration of the right smoke inlet is >a1, the opening and closing angles of the first rotating baffle on the left and right sides can be α0+m3×γ1, and the opening and closing angles of the second rotating baffle on the left and right sides can be α0+m4×δ1, (m3>m1>1>m4>m2>0, γ1>δ1>γ0>δ0>0).

[0071] An embodiment of the present invention provides a method for controlling oil fume zoning of a range hood, wherein the first rotating baffle and the second rotating baffle on the left and right sides are driven to rotate by the first-stage power unit and the second-stage power unit respectively, thereby purifying the oil fume of the left smoke inlet and the right smoke inlet respectively. The negative pressure range of the negative pressure zone of the smoke inlet of the range hood head can be actively regulated to prevent the oil fume from escaping, accurately control the oil fume, and realize the intelligent oil fume suction and exhaust of the range hood.

[0072] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the range hood oil fume zoning control method described above can refer to the corresponding process in the aforementioned embodiment of the range hood oil fume control device, and will not be repeated here.

[0073] Embodiment three:

[0074] The embodiment of the present invention further provides a range hood, such as Figure 1 As shown, the range hood 1 comprises: the range hood fume control device 5 of the above-mentioned embodiment.

[0075] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the range hood described above can refer to the corresponding process in the aforementioned embodiment of the range hood fume control device, which will not be repeated here.

[0076] In addition, in the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0077] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0078] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0079] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above-mentioned embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-mentioned embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A range hood fume control device, characterized in that: The smoke inlet area of ​​the range hood includes a left smoke inlet and a right smoke inlet, the left smoke inlet and the right smoke inlet are used to purify the smoke of the left stove and the right stove of the range hood respectively, and the range hood is provided with a smoke inlet chamber; The oil fume control device of the range hood is arranged in the smoke inlet chamber of the range hood, and a first rotating baffle and a second rotating baffle are arranged on the left and right sides of the oil fume control device, the two first rotating baffles are arranged on the outside of the oil fume control device, and the two second rotating baffles are arranged on the inside of the oil fume control device; The oil fume control device is provided with a first-stage power device and a second-stage power device, wherein the first-stage power device and the second-stage power device are respectively used to drive the two first rotating baffles and the two second rotating baffles to rotate; The first-stage power device and the second-stage power device are also used to determine the opening and closing angles of the two first rotating baffles and the two second rotating baffles based on the oil smoke concentration of the left smoke inlet and the right smoke inlet respectively; the opening and closing angle represents the angle between the rotating baffle and the side wall of the smoke inlet chamber.

2. The oil fume control device for a range hood according to claim 1, characterized in that: The first-stage power device includes: a motor and a gear. The gear of the first rotating baffle meshes with the gear of the first-stage power device, and the motor is connected to the gear of the first-stage power device. The motor drives the gear of the first-stage power device to rotate the first rotating baffle.

3. The oil fume control device for a range hood according to claim 1, characterized in that: The second-stage power device includes: a pneumatic push rod, a slider, a slide groove, and a gear bar. The slider is set in the slide groove, and the pneumatic push rod is connected to the slider; the pneumatic push rod controls the slider to move back and forth in the slide groove; the gear bar is fixed on the slider, and the gear bar is engaged with the gear on the second rotating baffle, and the gear bar drives the gear on the second rotating baffle to rotate the second rotating baffle.

4. The oil fume control device for a range hood according to claim 3, characterized in that: When the pneumatic push rod is extended, it drives the second rotating baffle on the right side to rotate to determine the opening and closing angle of the second rotating baffle on the right side; when the pneumatic push rod is contracted, it drives the second rotating baffle on the left side to rotate to determine the opening and closing angle of the second rotating baffle on the left side.

5. The oil fume control device for a range hood according to claim 1, characterized in that: The smoke inlet cavity is provided with ribs, and the smoke inlet cavity of the range hood divides the smoke inlet area of ​​the range hood into the left smoke inlet and the right smoke inlet through the ribs.

6. The oil fume control device for a range hood according to claim 1, characterized in that: A range hood smoke baffle is fixed above the smoke inlet chamber of the range hood, and oil fume concentration monitors are respectively arranged on both sides of the smoke baffle. The oil fume concentration monitor arranged on the left side is used to detect the oil fume concentration of the left smoke inlet, and the oil fume concentration monitor arranged on the right side is used to detect the oil fume concentration of the right smoke inlet.

7. A method for controlling oil fume zoning of a range hood, characterized in that: The oil fume control device applied to the range hood according to any one of claims 1 to 6, the method comprising: Determining the opening status of the left stove and the right stove of the range hood; When the left stove of the range hood is turned on and the right stove is not turned on, the left smoke inlet of the range hood is turned on and the right smoke inlet of the range hood is closed, so as to drive the first rotating baffle and the second rotating baffle on the left side to rotate, and determine the opening and closing angles of the first rotating baffle and the second rotating baffle on the left side based on the smoke concentration of the left smoke inlet; When the right stove of the range hood is turned on and the left stove is not turned on, the right smoke inlet of the range hood is turned on and the left smoke inlet of the range hood is closed, so as to drive the first rotating baffle and the second rotating baffle on the right side to rotate, and determine the opening and closing angles of the first rotating baffle and the second rotating baffle on the right side based on the smoke concentration of the right smoke inlet; When the right stove and the left stove of the range hood are both turned on, the left smoke inlet and the right smoke inlet of the range hood are turned on to drive the first rotating baffle and the second rotating baffle on the left and right sides to rotate, and the opening and closing angles of the first rotating baffle and the second rotating baffle on the left and right sides are determined based on the smoke concentration of the left smoke inlet and the right smoke inlet.

8. The method according to claim 7, characterized in that The initial opening and closing angle of the first rotating baffle is α0, and the initial opening and closing angle of the second rotating baffle is α0; When the left stove of the range hood is turned on and the right stove is not turned on, the step of determining the opening and closing angles of the first rotating baffle and the second rotating baffle on the left side based on the smoke concentration of the left smoke inlet includes: If the oil smoke concentration of the left smoke inlet is less than or equal to a preset first threshold, determine that the opening and closing angle of the first rotating baffle on the left side is α0+γ0, and the opening and closing angle of the second rotating baffle on the left side is α0+δ0; If the oil smoke concentration of the left smoke inlet is greater than the first threshold, the opening and closing angle of the first rotating baffle on the left side is determined to be α0+γ1, and the opening and closing angle of the second rotating baffle on the left side is determined to be α0+δ1; wherein γ1>δ1>γ0>δ0>0; And / or, when the right stove of the range hood is turned on and the left stove is not turned on, the step of determining the opening and closing angles of the first rotating baffle and the second rotating baffle on the right side based on the smoke concentration of the right smoke inlet includes: If the smoke concentration of the right smoke inlet is less than or equal to the first threshold, determine that the opening and closing angle of the first rotating baffle on the right side is α0+γ0, and the opening and closing angle of the second rotating baffle on the right side is α0+δ0; If the oil smoke concentration of the right smoke inlet is greater than the first threshold, it is determined that the opening and closing angle of the first rotating baffle on the right side is α0+γ1, and the opening and closing angle of the second rotating baffle on the right side is α0+δ1.

9. The method according to claim 8, characterized in that When the right stove and the left stove of the range hood are both turned on, the step of determining the opening and closing angles of the first rotating baffle on the left and the second rotating baffle on the right based on the smoke concentration of the left smoke inlet and the right smoke inlet comprises: If the average value of the oil smoke concentration of the left smoke inlet and the oil smoke concentration of the right smoke inlet is less than or equal to the first threshold, determine that the opening and closing angle of the first rotating baffle on the left / right side is α0+m1×γ0, and the opening and closing angle of the second rotating baffle on the left / right side is α0+m2×δ0; If the average value of the oil fume concentration of the left smoke inlet and the oil fume concentration of the right smoke inlet is greater than the first threshold, the opening and closing angle of the first rotating baffle on the left / right side is determined to be α0+m3×γ1, and the opening and closing angle of the second rotating baffle on the left / right side is determined to be α0+m4×δ1; wherein, m3>m1>1>m4>m2>0, γ1>δ1>γ0>δ0>0.

10. A range hood, characterized in that: The range hood comprises: the range hood fume control device according to any one of claims 1 to 6.

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