Range hood and control method thereof

Abstract

The invention provides a range hood and a control method thereof, and relates to the technical field of kitchen appliances. According to the range hood provided by the invention, firstly, at least two suspension devices are arranged on the range hood body, and the range hood body can be automatically adjusted up and down or automatically leveled, so that deviation of the range hood caused by tiny vibration generated by motor operation or other reasons is avoided; the kitchen ventilator body and the kitchen ventilator body and the cabinet are ensured to be flush and attractive, and the installation difficulty of the kitchen ventilator body is lowered. On the second aspect, the visual detection part and the at least two suspension devices are arranged on the range hood body, so that whether the range hood has the oil dripping risk or not can be automatically identified, meanwhile, the inclination angle of the range hood body can be automatically adjusted to improve the trend of an oil way, and the oil dripping risk is solved. And thirdly, at least two suspension devices are arranged on the range hood body, so that the smoke suction effect can be improved by adjusting the position of the range hood when the smoke suction effect of the range hood is not good.

Description

Technical Field

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

[0002] Currently, the range hood is one of the commonly used household appliances. Among them, the built-in range hood is a type that can be embedded in the kitchen cabinet, hiding most of the body of the range hood in the cabinet, with higher aesthetics.

[0003] In the prior art, during the process of installing the built-in range hood in the cabinet, it is necessary to first measure the installation height of the range hood according to the cabinet height, use expansion bolts, etc. to fix the hanging bracket on the wall, and then install the range hood on the hanging bracket. This installation method will cause the following problems: on the one hand, since the installed range hood is fixed, the level of the installer determines whether the cabinet and the range hood are flush and beautiful, and whether there is a problem with the oil flow direction inside the range hood after installation. On the other hand, after the range hood is installed, due to the slight vibration generated by the operation of the motor during use or other reasons, the range hood may be displaced. Once the range hood is displaced and cannot be reset, the aesthetics will decline; at the same time, after the range hood is installed and fixed, when the smoking effect of the range hood is not good, it is impossible to improve the smoking effect by adjusting the angle and position of the smoke collecting hood. Summary of the Invention

[0004] The objectives of the present invention include providing a range hood and a control method thereof, which can achieve automatic leveling of the range hood, improve the oil flow direction of the range hood, and improve the smoking effect of the range hood.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, the present invention provides a range hood, including:

[0007] A range hood body, with an oil cup provided at the bottom of the range hood body;

[0008] At least two suspension devices, which are spaced apart and fixed to the wall surface, and the output ends of the at least two suspension devices are respectively connected to the left and right ends of the range hood body;

[0009] A visual detection component, which is arranged on the range hood body and is communicatively connected to the at least two suspension devices. When the visual detection component detects that there are oil droplets at the bottom of the range hood body, the suspension device drives the range hood body to move in a first direction so that the oil droplets fall into the oil cup.

[0010] In an alternative embodiment, the range hood further includes at least two ejection structures respectively disposed at the left and right ends of the range hood body, and the output ends of the at least two ejection structures face the wall surface, and the ejection structures are configured to drive the range hood body to move in a second direction;

[0011] And / or, the range hood further includes a horizontal sensor disposed on the range hood body, the horizontal sensor is configured to detect the level of the range hood body, and the horizontal sensor is communicatively connected to the at least two suspension devices.

[0012] In an alternative embodiment, the range hood body includes a main unit, a smoke collecting hood, and the oil cup. The main unit is disposed above the smoke collecting hood, the oil cup is disposed below the smoke collecting hood, and oil receiving platforms are respectively disposed at the left and right ends of the bottom of the smoke collecting hood;

[0013] The output ends of the at least two suspension devices are connected to the left and right ends of the top of the main unit;

[0014] The visual detection member is disposed at the bottom of the back surface of the smoke collecting hood, so that the monitoring position of the visual detection member is located between the smoke collecting hood and the oil cup.

[0015] In an alternative embodiment, left detection members are respectively disposed on the left side walls of the smoke collecting hood, and the left detection members are configured to detect the amount of oil fume escaping from the left side of the range hood body;

[0016] Right detection members are respectively disposed on the right side walls of the smoke collecting hood, and the right detection members are configured to detect the amount of oil fume escaping from the right side of the range hood body;

[0017] Front detection members are respectively disposed on the front side walls of the smoke collecting hood, and the front detection members are configured to detect the amount of oil fume escaping from the front side of the range hood body;

[0018] A control module is disposed in the main unit, and the control module is communicatively connected to the left detection member, the right detection member, the front detection member, the suspension device, and the visual detection member;

[0019] And / or, the visual detection member at least includes a first visual detection member and a second visual detection member. The first visual detection member is disposed at the left end of the bottom of the back surface of the smoke collecting hood, and the second visual detection member is disposed at the right end of the bottom of the back surface of the smoke collecting hood;

[0020] The at least two suspension devices include a first suspension device and a second suspension device. The first suspension device and the second suspension device are spaced apart and fixed to the wall surface. The first suspension device is connected to the left end of the top of the back surface of the main unit, and the output end of the second suspension device is connected to the right end of the top of the back surface of the main unit.

[0021] In a second aspect, the present invention provides a control method for a range hood, based on the range hood described in any of the foregoing embodiments;

[0022] The control method includes the following steps:

[0023] Determine whether the range hood body is in a working state;

[0024] If the range hood body is in a working state, detect whether there is smoke leakage, and automatically adjust the smoke gathering action of the range hood body according to the magnitude of the oil fume escape amount;

[0025] If the range hood body is not in a working state, identify the oil droplets at the bottom of the range hood body, and automatically adjust the range hood body according to the position and size of the oil droplets.

[0026] In an alternative embodiment, if the range hood body is in a working state, detect whether there is smoke leakage, and automatically adjust the smoke gathering action of the range hood body according to the magnitude of the oil fume escape amount of the smoke leakage, including the following steps:

[0027] Detect the oil fume escape amount on the front side, left side or right side of the range hood body;

[0028] If the oil fume escape amount on the left side or the right side is greater than the set value W, control the first suspension device or the second suspension device to drive the range hood body to move downward in the first direction;

[0029] If the oil fume escape amount on the front side is greater than the set value W, control the first suspension device and the second suspension device to drive the range hood body to move downward in the first direction simultaneously;

[0030] Detect again the oil fume escape amount on the front side, left side or right side of the range hood body;

[0031] If the oil fume escape amount on the front side, left side or right side is less than the set value W, control the first suspension device and / or the second suspension device to drive the range hood body to reset.

[0032] In an alternative embodiment, if the range hood body is not in a working state, identify the oil droplets at the bottom of the range hood body, and automatically adjust the range hood body according to the position and size of the oil droplets, including the following steps:

[0033] Compensate and adjust the tilt angle of the range hood body;

[0034] The first visual detection component and the second visual detection component simultaneously detect whether there are oil droplets at the bottom of the range hood body;

[0035] If the visual detection component detects that there are oil droplets at the bottom of the range hood body, then control the suspension device to drive the range hood body to move in the first direction.

[0036] In an alternative embodiment, if the visual detection component detects that there are oil droplets at the bottom of the range hood body, then controlling the suspension device to drive the range hood body to move in the first direction includes the following steps:

[0037] If the first visual detection component detects that there are oil droplets at the bottom of the range hood body, then control the second suspension device to drive the range hood body to move downward in the first direction;

[0038] If the second visual detection component detects that there are oil droplets at the bottom of the range hood body, then control the first suspension device to drive the range hood body to move downward in the first direction;

[0039] The visual detection component detects the bottom of the range hood body again. If the visual detection component detects that there are no oil droplets at the bottom of the range hood body, then control the suspension device to drive the range hood body to reset.

[0040] In an alternative embodiment, if the visual detection component detects that there are oil droplets at the bottom of the range hood body, then controlling the suspension device to drive the range hood body to move in the first direction further includes the following steps:

[0041] If the first visual detection component and the second visual detection component simultaneously detect that there are oil droplets at the bottom of the range hood body, compare the size of the oil droplets detected by the first visual detection component with the size of the oil droplets detected by the second visual detection component to determine the size of the two oil droplets;

[0042] If there is a difference in the size of the two oil droplets, then control the suspension device at the end with the smaller oil droplet to drive the range hood body to move downward in the first direction;

[0043] The horizontal sensing component detects the tilt angle of the range hood body. If the tilt angle is greater than 10 degrees, then after pausing for a period of time, control the suspension device to drive the range hood body to reset;

[0044] Control the suspension device at the end with the larger oil droplet to drive the range hood body to move downward in the first direction;

[0045] The horizontal sensing component detects the tilt angle of the range hood body again. If the tilt angle is greater than 10 degrees, then after pausing for a period of time, control the suspension device to drive the range hood body to reset.

[0046] In an alternative embodiment, compensating and adjusting the tilt angle of the range hood body includes the following steps:

[0047] Control the first suspension device and the second suspension device to drive the range hood body to move downward along a first direction at the same time;

[0048] Control the ejection structure to drive the range hood body to move along a second direction;

[0049] The horizontal sensing member detects the tilt angle of the range hood body. If the tilt angle is T, after pausing for a period of time, control the ejection structure and the suspension device to drive the range hood body to reset.

[0050] The beneficial effects of the range hood and its control method provided by the embodiments of the present invention include:

[0051] In the first aspect, by providing at least two suspension devices on the range hood body, when the range hood body is not in a horizontal state, at least two suspension devices can drive the range hood body to move along a first direction, and the range hood body can be automatically adjusted up and down or automatically leveled. This setting avoids the deviation of the range hood caused by the minute vibration generated by the operation of the motor or other reasons, ensures the flatness and beauty of the range hood body and the range hood body and the cabinet, improves the user experience, and at the same time reduces the installation difficulty of the range hood body. In the second aspect, by providing a visual detection member and at least two suspension devices on the range hood body, when the visual detection member detects that there are oil drops at the bottom of the range hood body, the suspension device drives the range hood body to move along a first direction so that the oil drops fall into the oil cup; this setting can automatically identify whether there is a risk of oil dripping in the range hood, and at the same time can automatically adjust the tilt angle of the range hood body to improve the oil path direction, thereby solving the above-mentioned risk of oil dripping. In the third aspect, by providing at least two suspension devices on the range hood body, when the smoking effect of the range hood is not good, at least two suspension devices can drive the range hood body to move along a first direction, and the smoking effect can be improved by adjusting the position of the range hood. Description of the Drawings

[0052] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0053] Figure 1 It is the first structural schematic diagram of the range hood provided in this embodiment;

[0054] Figure 2 It is the second structural schematic diagram of the range hood provided in this embodiment;

[0055] Figure 3Partial schematic diagram of the range hood provided in this embodiment;

[0056] Figure 4 Schematic structural diagram of the suspension device provided in this embodiment;

[0057] Figure 5 Schematic structural diagram of the ejection structure provided in this embodiment;

[0058] Figure 6 Left view of the range hood provided in this embodiment;

[0059] Figure 7 Installation schematic diagram of the range hood, the cabinet and the integrated stove provided in this embodiment;

[0060] Figure 8 Schematic flow chart of the control method of the range hood provided in this embodiment;

[0061] Figure 9 Schematic flow chart of step S2 provided in this embodiment;

[0062] Figure 10 Schematic flow chart of step S31 provided in this embodiment;

[0063] Figure 11 Schematic flow chart of step S33 provided in this embodiment.

[0064] Icons: 010 - Range hood; 020 - Cabinet; 030 - Installation table; 040 - Integrated stove; 050 - Cookware; 100 - Suspension device; 101 - First suspension device; 102 - Second suspension device; 110 - Bracket; 111 - Bracket body; 112 - First installation part; 113 - Hook; 120 - Connection part; 130 - Mounting seat; 131 - Mounting seat body; 132 - Second installation part; 133 - Groove; 134 - Protrusion; 135 - Bearing; 140 - First driving part; 141 - Output shaft; 150 - Transmission structure; 151 - Transmission rod; 1511 - Threaded section; 152 - Connection block; 200 - Range hood body; 210 - Main unit; 211 - Hook hole; 220 - Smoke collecting hood; 230 - Horizontal sensor; 240 - Front detector; 250 - Left detector; 260 - Right detector; 270 - Oil cup; 271 - Oil receiving table; 300 - Ejection structure; 310 - Second driving part; 320 - Telescopic rod; 330 - Ejection head; 400 - Visual detector; 410 - First visual detector; 420 - Second visual detector. Detailed implementation manners

[0065] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. Components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0066] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0067] It should be noted that like reference numerals and letters denote like items in the following figures. Therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

[0068] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is customarily placed during use, it is 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 should not be construed as a limitation of the present invention.

[0069] In addition, terms such as "first", "second", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0070] It should be noted that, without conflict, the features in the embodiments of the present invention may be combined with each other.

[0071] The overall structure, working principle, and technical effects achieved by the range hood 010 provided by the present invention, as well as the detailed steps, implementation principles, and technical effects achieved by the supporting control method, will be introduced in detail below through embodiments in combination with the accompanying drawings.

[0072] Please refer to Figure 1 and Figure 2 , the range hood 010 provided by the present invention is applied to automatically identify the oil dripping risk of the range hood 010 and can automatically adjust the tilt angle of the range hood body 200 to address the above-mentioned oil dripping risk.

[0073] A range hood 010 proposed by the present invention includes:

[0074] A range hood body 200, and an oil cup 270 is provided at the bottom of the range hood body 200;

[0075] At least two hanging devices 100 are arranged at intervals and fixed on the wall, and the output ends of the at least two hanging devices 100 are respectively connected to the left and right ends of the range hood body 200;

[0076] The visual detection part 400 is arranged on the range hood body 200. The visual detection part 400 is communicated with at least two suspension devices 100. When the visual detection part 400 detects that there are oil droplets at the bottom of the range hood body 200, the suspension device 100 drives the range hood body 200 to move along the first direction so that the oil droplets fall into the oil cup 270.

[0077] It can be understood that, on the first hand, by arranging at least two suspension devices 100 on the range hood body 200, when the range hood body 200 is not in a horizontal state, at least two suspension devices 100 can drive the range hood body 200 to move along the first direction, and the range hood body 200 can be automatically adjusted up and down or automatically leveled. This arrangement avoids the deviation of the range hood 010 due to slight vibrations generated by the operation of the motor or other reasons, ensures the flushness and beauty of the range hood body 200 and the range hood body 200 and the cabinet 020, improves the user experience, and reduces the difficulty of installing the range hood body 200. Secondly, by providing a visual inspection component 400 and at least two suspension devices 100 on the range hood body 200, when the visual inspection component 400 detects oil droplets at the bottom of the range hood body 200, the suspension device 100 drives the range hood body 200 to move in a first direction, so that the oil droplets fall into the oil cup 270. This arrangement can automatically identify whether the range hood 010 is at risk of oil dripping, and can also automatically adjust the inclination angle of the range hood body 200 to improve the direction of the oil path, thereby resolving the aforementioned oil dripping risk. Thirdly, by providing at least two suspension devices 100 on the range hood body 200, when the range hood 010's extraction efficiency is poor, the at least two suspension devices 100 can drive the range hood body 200 to move in the first direction, thereby improving the extraction efficiency by adjusting the position of the range hood 010.

[0078] In this embodiment, the range hood 010 is installed and arranged in the direction of a three-dimensional coordinate system, wherein the first direction is the Z-axis direction, the second direction is the Y-axis direction, and the third direction may be the X-axis direction.

[0079] In this embodiment, the range hood 010 includes a range hood body 200 .

[0080] In this embodiment, please refer to Figure 1 and Figure 2, the range hood body 200 includes a main unit 210, a smoke collecting hood 220 and an oil cup 270. The main unit 210 is disposed above the smoke collecting hood 220, and the oil cup 270 is disposed below the smoke collecting hood 220. Oil receiving platforms 271 are provided at both the left and right ends of the bottom of the smoke collecting hood 220. Among them, the output ends of at least two suspension devices 100 are connected to the left and right ends of the top of the main unit 210.

[0081] In this embodiment, please refer to Figure 7 , two cabinets 020 are respectively installed on both sides of the range hood 010. The range hood 010 is installed inside the two cabinets 020, and the two cabinets 020 are arranged at intervals. The main unit 210 of the range hood 010 is installed between the two first cabinets 020. The top of the smoke collecting hood 220 of the range hood body 200 is flush with the bottom of the cabinet 020 and the gaps are uniform.

[0082] In this embodiment, please refer to Figure 7 , an installation table 030 and an integrated stove 040 are provided at the bottom of the range hood 010 and the cabinet 020. The integrated stove 040 is integrally provided on the installation table 030, and the integrated stove 040 is arranged relative to the smoke collecting hood 220. Among them, at least one burner is provided on the integrated stove 040.

[0083] It is worth mentioning that since the range hood 010 is automatically adjusted to a very horizontal state as a whole, or the range hood 010 is in an inclined state after the cabinet 020, during the operation of the range hood 010, oil stains are likely to hang on the bottommost part of the smoke collecting hood 220; among them, a part of the oil stains is that the oil fume will condense and converge into oil droplets on the bottom surface of the smoke collecting hood 220, and some are the oil stains oozing from the inside of the range hood 010. Although most of the oil stains hanging on the bottommost part of the smoke collecting hood 220 will flow into the oil cup 270, due to the same width of the oil cup 270 and the smoke collecting hood 220, and some installation structures, the oil stains at the bottom of both sides of the smoke collecting hood 220 are easily along to the outermost corners at the bottom of both sides of the smoke collecting hood 220, resulting in the situation that the oil droplets cannot drip into the oil cup 270. Therefore, in this application, by setting the visual detection member 400 and at least two suspension devices 100, it is possible to automatically identify whether there is a risk of oil dripping in the range hood 010, and at the same time automatically adjust the inclination angle of the range hood body 200 to improve the oil path direction, so as to solve the above-mentioned risk of oil dripping.

[0084] In this embodiment, please refer to Figure 3 , the visual detection member 400 is disposed at the bottom of the back surface of the smoke collecting hood 220, so that the monitoring position of the visual detection member 400 is located between the smoke collecting hood 220 and the oil cup 270.

[0085] Optionally, please refer to Figure 2, the visual detection component 400 at least includes a first visual detection component 410 and a second visual detection component 420. The first visual detection component 410 is disposed at the left end of the bottom of the back surface of the smoke collecting hood 220, and the second visual detection component 420 is disposed at the right end of the bottom of the back surface of the smoke collecting hood 220.

[0086] It can be understood that if the first visual detection component 410 detects that there is an oil droplet at the left end of the bottom of the smoke collecting hood 220, the second suspension device 102 is controlled to drive the smoke machine body 200 to move downward along the first direction, and the smoke machine body 200 is inclined, then the oil droplet flows to the oil receiving table 271 and is guided by the oil receiving table 271 into the oil cup 270.

[0087] If the second visual detection component 420 detects that there is an oil droplet at the right end of the bottom of the smoke collecting hood 220, the first suspension device 101 is controlled to drive the smoke machine body 200 to move downward along the first direction, and the smoke machine body 200 is inclined, then the oil droplet flows to the oil receiving table 271 and is guided by the oil receiving table 271 into the oil cup 270.

[0088] If the first visual detection component 410 and the second visual detection component 420 simultaneously detect that there are oil droplets at both the left and right ends of the bottom of the smoke collecting hood 220, first compare the sizes of the two oil droplets, and first control the suspension device 100 at the end with the smaller oil droplet to drive the smoke machine body 200 to move downward along the first direction. The smoke machine body 200 is inclined, then the large oil droplet flows to the oil receiving table 271 and is guided by the oil receiving table 271 into the oil cup 270; finally, control the suspension device 100 at the end with the larger oil droplet to drive the smoke machine body 200 to move downward along the first direction. The smoke machine body 200 is inclined, then the small oil droplet flows to the oil receiving table 271 and is guided by the oil receiving table 271 into the oil cup 270.

[0089] Optionally, the suspension device 100 drives the smoke machine body 200 to move along the first direction so that the inclination angle of the smoke machine body 200 relative to the horizontal line is 10 degrees. It can be understood that the inclination angle of the smoke machine body 200 relative to the horizontal line is relatively small, which can allow the oil droplets on both sides to be safely transferred to the oil receiving table 271, and finally the oil droplets can be guided into the oil cup 270 through the oil receiving table 271.

[0090] It is worth mentioning that during the cooking process, the stove heats the cookware 050, generating a large amount of oil fumes, and the range hood 010 sucks the oil fumes. Among them, the smoking effect of the range hood 010 depends on the following three aspects: 1. The suction force of the range hood 010; 2. The oil fume gathering ability of the range hood 010; 3. The exhaust ability of the rear section of the range hood 010 and whether there are any obstructions, etc. Since the suction force of the range hood 010 and the exhaust ability of the rear section are determined according to the range hood 010 itself and the user environment, and cannot be changed after being determined. Therefore, please refer to Figure 1, in this application, aiming at the smoke collection ability of the range hood 010, the left detection component 250, the right detection component 260 and the front detection component 240 are added and combined with the suspension device 100 to adjust the negative pressure area and the smoke collection angle of the range hood 010, thereby improving the smoking effect of the range hood 010.

[0091] In this embodiment, please refer to Figure 2 , a left detection component 250 is provided on the left side wall of the smoke collection hood 220, and the left detection component 250 is used to detect the amount of oil fume escaping from the left side of the range hood body 200. Optionally, the left detection component 250 can be a smoke probe.

[0092] Among them, the left detection component 250 can be arranged at the middle position of the left side wall of the smoke collection hood 220.

[0093] In this embodiment, please refer to Figure 6 , a right detection component 260 is provided on the right side wall of the smoke collection hood 220, and the right detection component 260 is used to detect the amount of oil fume escaping from the right side of the range hood body 200. Optionally, the left detection component 250 can be a smoke probe.

[0094] Among them, the right detection component 260 can be arranged at the middle position of the right side wall of the smoke collection hood 220.

[0095] In this embodiment, please refer to Figure 2 , a front detection component 240 is provided on the front side wall of the smoke collection hood 220, and the front detection component 240 is used to detect the amount of oil fume escaping from the front side of the range hood body 200. Optionally, the left detection component 250 can be a smoke probe.

[0096] Among them, the front detection component 240 can be arranged at the middle position of the front side wall of the smoke collection hood 220.

[0097] In this embodiment, a control module is arranged in the main machine 210, and the control module is communicatively connected with the left detection component 250, the right detection component 260, the front detection component 240, the suspension device 100 and the visual detection component 400.

[0098] It can be understood that the front detection component 240, the left detection component 250 and the right detection component 260 respectively detect the amount of oil fume escaping from the front side, the left side or the right side of the range hood body 200. When the detected amount of oil fume escaping from the left side or the right side exceeds the set value W, the first suspension device 101 or the second suspension device 102 moves downward, so that one side of the range hood 010 approaches the cookware 050. At this time, the oil fume will gather to the other side and be sucked away by the lower negative pressure area of the smoke collection hood 220. When the detected amount of oil fume escaping from the front side exceeds the set value W, the two suspension devices 100 move downward simultaneously, so that the lower negative pressure area of the range hood 010 approaches the cookware 050. At this time, the oil fume is sucked away by the lower negative pressure area of the smoke collection hood 220.

[0099] Therefore, by combining the suspension device 100 with the left detection member 250, the right detection member 260 and the front detection member 240, the oil smoke can be better gathered, the smoke escape phenomenon can be avoided, and the smoke extraction effect of the range hood 010 can be improved.

[0100] It's worth noting that newly purchased range hoods 010 must be leveled during installation, as otherwise it would affect both the aesthetics and the oil flow within the range hood 010. Conventional manual adjustments rely on the technician's experience, which is entirely dependent on the technician's skill and suffers from poor consistency. Furthermore, minor vibrations from the motor of the range hood 010 or other factors can cause the range hood 010 to shift. Therefore, the present application incorporates a level sensor 230 and integrates it with the ejection structure 300 and suspension device 100 to achieve automatic leveling and horizontal movement of the range hood 010.

[0101] In this embodiment, please refer to Figure 1 The range hood 010 further includes a horizontal sensor 230, which is disposed on the range hood body 200. The horizontal sensor 230 is disposed on the top of the smoke collecting hood 220 and is located at the center line of the top surface of the smoke collecting hood 220.

[0102] The level sensor 230 is used to detect the levelness of the range hood body 200. The level sensor 230 is in communication with at least two suspension devices 100. The level sensor 230 is in communication with the control module. The level sensor 230 can detect the levelness of the range hood body 200 in real time and feed the real-time detected data back to the control module.

[0103] Optionally, the level sensor 230 may be a level. When the level reads data and converts the data into tilt angles in the X and Y directions, for example, if the bubble in the level is 1 mm off center, it corresponds to a tilt of 0.02 degrees of the range hood body 200 relative to the horizontal. Of course, in other embodiments, the level sensor 230 may also use a gyroscope to obtain the tilt angle of the range hood body 200 relative to the horizontal.

[0104] As can be understood, when the range hood 010 deviates from the horizontal, the horizontal sensor 230 detects the levelness of the range hood 010 and calculates the tilt angle of the range hood 010 relative to the horizontal. Based on the tilt angle measured by the horizontal sensor 230, the deviation of the range hood body 200 from the horizontal is calculated. The suspension device 100 and the ejection structure 300 then move the range hood body 200 according to the deviation value to automatically level the range hood body 200. This arrangement ensures that the range hood body 200 and the range hood body 200 are flush and aesthetically pleasing with the cabinet 020, improving the user experience while also reducing the difficulty of installing the range hood body 200.

[0105] In this embodiment, the range hood 010 includes a suspension device 100.

[0106] In this embodiment, at least two suspension devices 100 are spaced apart and fixed to the wall surface, and the output ends of the at least two suspension devices 100 are respectively connected to the left and right ends of the top of the range hood body 200.

[0107] Optionally, please refer to Figure 1 and Figure 2 , at least two suspension devices 100 include a first suspension device 101 and a second suspension device 102. The first suspension device 101 and the second suspension device 102 are spaced apart and fixed to the wall surface. The output end of the first suspension device 101 is connected to the left end of the top of the back of the main unit 210, and the output end of the second suspension device 102 is connected to the right end of the top of the back of the main unit 210.

[0108] Of course, in other embodiments, a single, three or other number of suspension devices 100 may also be provided at the top of the range hood body 200.

[0109] In this embodiment, please refer to Figure 4 , the suspension device 100 includes a bracket 110, a mounting base 130 and a transmission structure 150; the bracket 110 is connected to the range hood body 200, and a connecting portion 120 is provided on the bracket 110; the mounting base 130 is mounted on the wall surface, and a first driving member 140 is provided on the mounting base 130; the first end of the transmission structure 150 is in transmission connection with the output end of the first driving member 140, and the second end of the transmission structure 150 is connected to the connecting portion 120. The first driving member 140 drives the transmission structure 150 so that the transmission structure 150 drives the range hood body 200 to move in a first direction.

[0110] In this embodiment, please refer to Figure 4 , the suspension device 100 includes a mounting base 130. The mounting base 130 includes a mounting base body 131, a second mounting portion 132 and a slot 133 provided on the mounting base body 131. Among them, the first driving member 140, the second mounting portion 132 and the slot 133 are sequentially arranged on the upper, middle and bottom of the mounting base body 131.

[0111] Among them, the mounting base body 131 is fixedly connected to the wall surface. The mounting base body 131 can be fixed to the wall surface through a plurality of connecting pieces. A protrusion 134 is provided on the front surface of the mounting base body 131. The protrusion 134 extends upward along the bottom edge of the mounting base body 131. A groove is provided on the back surface of the mounting base body 131 opposite to the protrusion 134. The slot 133 is provided on the protrusion 134. It can be understood that the bracket 110 can be fitted and limited within the protrusion 134 on the back surface, so that the bracket 110 can be limited within the slot 133. Such a setting can avoid the risk of the range hood 010 falling off due to the detachment of the bracket 110. At the same time, the limiting bracket 110 prevents the bracket 110 and the range hood 010 from shaking during the adjustment process.

[0112] Among them, the second mounting portion 132 can be provided in the middle of the mounting base body 131 by means of integral molding or welding. The second mounting portion 132 is perpendicular to the wall surface. A second opening is provided on the second mounting portion 132. A bearing 135 coaxially arranged with the transmission rod 151 of the transmission structure 150 is provided in the second opening. The transmission rod 151 of the transmission structure 150 is sleeved within the bearing 135. It can be understood that when the transmission rod 151 rotates, the bearing 135 can reduce the rotational force, making the transmission rod 151 rotate more easily and flexibly.

[0113] Among them, the first driving member 140 can be fixed to the upper part of the mounting base body 131 through a connecting piece. Optionally, the first driving member 140 can be a worm reduction motor. Among them, the primary reduction of the worm reduction motor adopts a worm and gear structure. The first driving member 140 set in this way can obtain the maximum self-locking force.

[0114] In this embodiment, please refer to Figure 4 , the suspension device 100 includes a bracket 110. The bracket 110 includes a bracket body 111 and a first mounting portion 112 provided on the bracket body 111. The first mounting portion 112 is provided above the bracket body 111. The lower part of the bracket body 111 is connected to the range hood body 200. Among them, the bracket body 111 is arranged in the groove and limited within the groove of the wall surface and the mounting base 130.

[0115] Among them, the first mounting portion 112 is provided above the bracket body 111 and extends into the slot 133 of the mounting base 130. The first mounting portion 112 is perpendicular to the wall surface. A first opening is provided on the first mounting portion 112. The connecting portion 120 is provided on the first mounting portion 112. The first opening and the threaded hole are coaxially arranged.

[0116] Among them, a threaded hole coaxially arranged with the transmission rod 151 is provided on the connecting portion 120. The threaded section 1511 is threadedly connected to the threaded hole. The first driving member 140 drives the transmission rod 151 to rotate, so that the rotating transmission rod 151 drives the range hood body 200 to move along the first direction.

[0117] Optionally, the connecting portion 120 can be a nut structure.

[0118] In this embodiment, please refer to Figure 4 , the bracket 110 is hung on the range hood body 200; therefore, a hook 113 is further provided below the bracket body 111, and the hook 113 is hung on the range hood body 200. Among them, a hook hole 211 is provided on the back of the main body 210 of the range hood body 200 opposite to the hanging device 100. The bracket 110 is located between the range hood body 200 and the wall, and the hook 113 is arranged in the hook hole 211.

[0119] It is worth mentioning that when the hook hole 211 in the prior art is a rectangular hole, when the range hood body 200 is hung or when the range hood body 200 is leveled, the range hood body 200 will move horizontally along the straight top edge of the rectangular hook hole 211, thus affecting the appearance of the range hood body 200. Therefore, in this embodiment, the upper part of the hook hole 211 is an arc structure. It can be understood that, please refer to Figure 8 , in this application, the hook hole 211 with an upper arc structure is adopted. Whether the range hood body 200 is hung or when the range hood body 200 is leveled, the range hood body 200 can always be at the highest point, and the horizontal movement of the range hood body 200 can be avoided.

[0120] Optionally, the hook hole 211 can be an arch structure, a circular structure, a semi-circular arc structure, etc.

[0121] Optionally, the hook 113 is a hook 113 with a cylindrical structure.

[0122] Among them, the bracket body 111, the first mounting portion 112 and the hook 113 can be an integrally formed structure.

[0123] In this embodiment, the hanging device 100 includes a transmission structure 150. Among them, the first end of the transmission structure 150 is in transmission connection with the output end of the first driving member 140, the second end of the transmission structure 150 is connected to the connecting portion 120, and the first driving member 140 drives the transmission structure 150 so that the transmission structure 150 drives the range hood body 200 to move in the first direction.

[0124] [[ID=2,6]]In this embodiment, please refer to Figure 4 , the transmission structure 150 includes a transmission rod 151. The first end of the transmission rod 151 is fixedly connected to the output end of the first driving member 14, and the second end of the transmission rod 151 is provided with a threaded section 1511. A threaded hole coaxial with the transmission rod 151 is provided on the connecting portion 120, and the threaded section 1511 is threadedly connected to the threaded hole. The first driving member 140 drives the transmission rod 151 to rotate so that the rotating transmission rod 151 drives the range hood body 200 to move in the first direction.

[0125] It can be understood that the first driving member 140 drives the transmission rod 151 to rotate. The transmission rod 151 rotates around the threaded hole of the connecting portion 120, so that the connecting portion 120 makes a linear motion in the first direction relative to the rotating transmission rod 151, and then the bracket 110 drives the range hood body 200 to move up and down.

[0126] Optionally, the transmission rod 151 can be a lead screw.

[0127] In this embodiment, the transmission structure 150 further includes a connecting block 152. The connecting block 152 is fixed to the first end of the transmission rod 151. A slot hole with a polygonal cross-section is provided at the top of the connecting block 152. The output shaft 141 of the output end of the first driving member 140 is fitted and limited to be fixed in the slot hole, so as to realize the transmission connection between the output end of the first driving member 140 and the transmission structure 150.

[0128] In another embodiment, the first driving member 140 can also be a telescopic motor, and the transmission structure 150 is a straight rod. The output end of the telescopic motor drives the straight rod to do telescopic motion, so that the bracket 110 drives the range hood body 200 to move up and down.

[0129] It is worth mentioning that after the range hood 010 stops working for a period of time, the oil fume condenses and converges on the surface of the range hood 010 to form dirty oil, and the dirty oil flows along the smoke collecting hood 220 and the oil screen inside the smoke collecting hood 220 as a whole into the oil cup 270. However, due to the current ultra-thin shape of the range hood 010, the overall backward inclination angle of the smoke collecting hood 220 and the oil screen inside the smoke collecting hood 220 is small, and it is difficult for the dirty oil to be introduced into the oil cup 270 at the rear side. Therefore, the present application provides at least two ejecting structures 300 to adjust the front and rear heights of the range hood 010, so as to make up for and adjust the weak points of oil guiding of the range hood 010.

[0130] In this embodiment, the range hood 010 includes an ejecting structure 300.

[0131] In this embodiment, please refer to Figure 2 , the range hood 010 further includes at least two ejecting structures 300. The at least two ejecting structures 300 are respectively arranged at the left and right ends of the bottom of the range hood body 200, and the output ends of the ejecting structures 300 face the wall surface. The ejecting structures 300 are used to drive the range hood body 200 to move in the second direction.

[0132] Optionally, please refer to Figure 5, the ejection structure 300 includes a second driving member 310 and a telescopic rod 320. The second driving member 310 is disposed at the bottom of the range hood body 200 and the output end of the second driving member 310 faces the wall. The output end of the second driving member 310 is drivingly connected to one end of the telescopic rod 320, and the other end of the telescopic rod 320 abuts against the wall; the output end of the second driving member 310 drives the telescopic rod 320 to move in the second direction, so that the range hood body 200 moves in the second direction.

[0133] Wherein, one end of the telescopic rod 320 is drivingly connected to the output end of the second driving member 310, and a spherical head 330 is provided at the other end; the spherical head 330 can reduce the friction between the telescopic rod 320 and the wall, facilitating the rotational adjustment of the telescopic rod 320.

[0134] Wherein, the second driving member 310 can be a power motor and a speed reduction mechanism. The first-stage speed reduction of the speed reduction mechanism adopts a worm and worm gear mechanism, which can obtain a large self-locking force.

[0135] It can be understood that the output end of the second driving member 310 can drive the telescopic rod 320 to expand and contract in the second direction, thereby adjusting the front and rear height of the range hood body 200. Please refer to Figure 6 , when the output end of the second driving member 310 can drive the telescopic rod 320 to extend in the second direction, the front height of the range hood body 200 is raised, causing the smoke collecting hood 220 to have an inclination angle relative to the horizontal line. When the inclination angle becomes larger until the horizontal sensing member 230 measures the inclination angle as the measured value T, the dirty oil will quickly flow into the oil cup 270; at this time, the second driving member 310 stops extending. After stopping for a period of time, the output end of the second driving member 310 can drive the telescopic rod 320 to retract in the second direction, resetting the range hood 010 to a horizontal state.

[0136] This setting realizes the compensation adjustment of the oil guiding of the range hood 010. By changing the inclination angle of the smoke collecting hood 220 and the oil net inside the smoke collecting hood 220 as a whole, the process of accelerating the dirty oil flowing into the oil cup 270 is optimized, and the oil path of the range hood 010 is optimized.

[0137] The working principle and process of the range hood 010 provided by the embodiment of the present invention are specifically as follows:

[0138] After the range hood 010 is installed with the cabinet 020 or when the range hood 010 is displaced due to the minute vibration generated during operation or other reasons, the deviation value of the range hood body 200 relative to the horizontal line can be calculated according to the data measured by the horizontal sensing member 230. Then, the suspension device 100 and the ejection structure 300 drive the range hood body 200 to move according to the deviation value to automatically level the range hood body 200.

[0139] When the range hood 010 is in the working state, the front detection member 240, the left detection member 250, and the right detection member 260 are used to detect the amount of oil fume escaping from the front side, the left side, and the right side of the range hood body 200 respectively, and the suspension device 100 is controlled according to the amount of oil fume escaping to adjust the negative pressure area and the smoke gathering angle of the range hood 010. When the amount of oil fume escaping detected by the left detection member or the right detection member exceeds the set value W, the first suspension device 101 or the second suspension device 102 moves downward, so that one side of the range hood 010 approaches the cookware 050. At this time, the oil fume will gather to the other side and be sucked away by the lower negative pressure area of the smoke collecting hood 220. When the amount of oil fume escaping from the front side exceeds the set value W, the two suspension devices 100 move downward simultaneously, so that the lower negative pressure area of the range hood 010 approaches the cookware 050. At this time, the oil fume is sucked away by the lower negative pressure area of the smoke collecting hood 220.

[0140] When the range hood 010 is not in the working state, when the control ejecting structure 300 raises the front side height of the range hood body 200, so that the smoke collecting hood 220 generates an inclination angle relative to the horizontal line. When the inclination angle becomes larger until the horizontal sensing member 230 measures the inclination angle as the measured value T, the dirty oil will be quickly introduced into the oil cup 270; at this time, the control ejecting structure 300 is controlled to stop extending and stop for a period of time, and then the control ejecting structure 300 is controlled to drive the range hood 010 to reset to the horizontal state.

[0141] When the range hood 010 is not in the working state, the first visual detection member 410 and the second visual detection member 420 identify the oil droplets at the bottom of the range hood body 200, and automatically adjust the range hood body 200 according to the position and size of the oil droplets, so that the oil droplets fall into the oil cup 270.

[0142] Based on the above range hood 010, please refer to Figure 8 , the present invention also proposes a control method for the range hood 010, and the control method includes the following steps:

[0143] S1: Determine whether the range hood body 200 is in the working state;

[0144] S2: If the range hood body 200 is in the working state, then detect whether there is oil fume running away, and automatically adjust the smoke gathering action of the range hood body 200 according to the amount of oil fume escaping;

[0145] S3: If the range hood body 200 is not in the working state, then identify the oil droplets at the bottom of the range hood body 200, and automatically adjust the range hood body 200 according to the position and size of the oil droplets.

[0146] In this embodiment, if the range hood 010 is a newly installed range hood 010, then the range hood 010 and the range hood 010 and the cabinet 020 need to be automatically leveled. Therefore, please refer to Figure 8, the control method further includes steps S01 - S02, and steps S01 - S02 are before step S1.

[0147] Among them, S01: Determine whether the range hood body 200 is horizontal according to the inclination angle of the range hood body 200 relative to the horizontal line detected by the horizontal sensor 230;

[0148] S02: If the range hood body 200 is not horizontal, calculate the deviation value generated by the range hood body 200 relative to the horizontal line and automatically level the range hood body 200.

[0149] It can be understood that if the range hood body 200 is horizontal, the next step S1 can be carried out.

[0150] In this embodiment, please refer to Figure 9 , the steps of S2 specifically include:

[0151] S21: Detect the amount of oil fume escaping from the front side, left side or right side of the range hood body 200;

[0152] S22: If the amount of oil fume escaping from the left side or right side is greater than the set value W, control the first suspension device 101 or the second suspension device 102 to drive the range hood body 200 to move downward in the first direction;

[0153] S23: If the amount of oil fume escaping from the front side is greater than the set value W, control the first suspension device 101 and the second suspension device 102 to drive the range hood body 200 to move downward in the first direction at the same time;

[0154] S24: Detect the amount of oil fume escaping from the front side, left side or right side of the range hood body 200 again;

[0155] S25: If the amount of oil fume escaping from the front side, left side or right side is less than the set value W, control the first suspension device 101 and / or the second suspension device 102 to drive the range hood body 200 to reset.

[0156] Among them, the steps of S21 specifically include: S211: The front detector 240 detects the amount of oil fume escaping from the front side of the range hood body 200;

[0157] S212: The left detector 250 detects the amount of oil fume escaping from the left side of the range hood body 200;

[0158] S213: The right detector 260 detects the amount of oil fume escaping from the right side of the range hood body 200.

[0159] It can be understood that in step S22, when the oil fume escape amount on the left side or the right side is detected to exceed the set value W, the first suspension device 101 or the second suspension device 102 moves downward, bringing one side of the range hood 010 closer to the cookware 050. At this time, the oil fume will gather towards the other side and be sucked away by the lower negative pressure area of the smoke collecting hood 220. In step S23, when the oil fume escape amount on the front side exceeds the set value W, the two suspension devices 100 move downward simultaneously, bringing the lower negative pressure area of the range hood 010 closer to the cookware 050. At this time, the oil fume is sucked away by the lower negative pressure area of the smoke collecting hood 220. By combining the suspension device 100 with the left detector 250, the right detector 260, and the front detector 240 in this way, the oil fume can be better gathered, the phenomenon of oil fume leakage can be avoided, and the smoking effect of the range hood 010 is improved.

[0160] In this embodiment, the steps of S3 specifically include:

[0161] S31: Compensate and adjust the tilt angle of the range hood body 200;

[0162] S32: The first vision detector 410 and the second vision detector 420 simultaneously detect whether there are oil droplets at the bottom of the range hood body 200;

[0163] S33: If the vision detector 400 detects that there are oil droplets at the bottom of the range hood body 200, control the suspension device 100 to drive the range hood body 200 to move in the first direction.

[0164] In this embodiment, please refer to Figure 10 , the steps of S31 specifically include:

[0165] S311: Simultaneously control the first suspension device 101 and the second suspension device 102 to drive the range hood body 200 to move downward in the first direction;

[0166] S312: Control the ejecting structure 300 to drive the range hood body 200 to move in the second direction;

[0167] S313: The horizontal sensor 230 detects the tilt angle of the range hood body 200. If the tilt angle is T, after pausing for a period of time, control the ejecting structure 300 and the suspension device 100 to drive the range hood body 200 to reset.

[0168] Among them, in S311, the first suspension device 101 and the second suspension device 102 simultaneously drive the range hood body 200 to move downward in the first direction, so that the range hood 010 and the suspension device 100 make way for each other, avoiding damage to the range hood 010 caused by structural collision.

[0169] It can be understood that in step S31, the ejection structure 300 is controlled to drive the range hood body 200 to move along the second direction, raising the front height of the range hood body 200, causing the smoke collecting hood 220 to have an inclination angle relative to the second direction. When the inclination angle becomes larger until the horizontal sensing member 230 measures the inclination angle as the measured value T, the dirty oil will be quickly introduced into the oil cup 270. This can achieve the compensation adjustment of the oil guiding of the range hood 010. By changing the inclination angle of the smoke collecting hood 220 and the overall oil screen inside the smoke collecting hood 220, the process of quickly introducing the dirty oil into the oil cup 270 can be accelerated, optimizing the oil path of the range hood 010.

[0170] In this embodiment, please refer to Figure 11 , step S33 includes steps S331 - S335 and steps S3301 - S3303 respectively. Steps S331 - S335 and steps S3301 - S3303 are two situations where there are oil droplets at the bottom of the range hood body 200.

[0171] In this embodiment, the steps of S33 specifically include:

[0172] S331: If the first vision detection member 410 and the second vision detection member 420 simultaneously detect that there are oil droplets at the bottom of the range hood body 200, compare the size of the oil droplets detected by the first vision detection member 410 with the size of the oil droplets detected by the second vision detection member 420 to determine the size of the two oil droplets;

[0173] S332: If there is a difference in the size of the two oil droplets, control the suspension device 100 at the end with the smaller oil droplet to drive the range hood body 200 to move downward along the first direction;

[0174] S333: The horizontal sensing member 230 detects the inclination angle of the range hood body 200. If the inclination angle is greater than 10 degrees, then after pausing for a period of time, control the suspension device 100 to drive the range hood body 200 to reset;

[0175] S334: Control the suspension device 100 at the end with the larger oil droplet to drive the range hood body 200 to move downward along the first direction;

[0176] S335: The horizontal sensing member 230 detects the inclination angle of the range hood body 200 again. If the inclination angle is greater than 10 degrees, then after pausing for a period of time, control the suspension device 100 to drive the range hood body 200 to reset.

[0177] It can be understood that in step S33, when the first vision detection member 410 and the second vision detection member 420 simultaneously detect that there are oil droplets at both the left and right ends of the bottom of the smoke collecting hood 220, first compare the sizes of the two oil droplets. First, control the suspension device 100 at the end with the smaller oil droplet to drive the smoke machine body 200 to move downward in the first direction, causing the smoke machine body 200 to tilt, so that the large oil droplet flows towards the oil receiving platform 271 and is guided by the oil receiving platform 271 into the oil cup 270; finally, control the suspension device 100 at the end with the larger oil droplet to drive the smoke machine body 200 to move downward in the first direction, causing the smoke machine body 200 to tilt, so that the small oil droplet flows towards the oil receiving platform 271 and is guided by the oil receiving platform 271 into the oil cup 270. Among them, since the suspension device 100 moves slowly and has a small tilt angle, both sides of the dirty oil droplets can be safely transferred to the oil receiving platform 271, and finally the oil droplets can be guided into the oil cup 270 through the oil receiving platform 271.

[0178] Among them, the steps of S332 specifically include:

[0179] S3321: If the oil droplet detected by the first vision detection member 410 is larger than the oil droplet detected by the second vision detection member 420, control the second suspension device 102 to drive the smoke machine body 200 to move downward in the first direction;

[0180] S3322: If the oil droplet detected by the second vision detection member 420 is larger than the oil droplet detected by the first vision detection member 410, control the first suspension device 101 to drive the smoke machine body 200 to move downward in the first direction.

[0181] Combined with the above steps S3321 - S3322, the steps of S334 specifically include:

[0182] S3341: If the oil droplet detected by the first vision detection member 410 is larger than the oil droplet detected by the second vision detection member 420, control the first suspension device 101 to drive the smoke machine body 200 to move downward in the first direction;

[0183] S3342: If the oil droplet detected by the second vision detection member 420 is larger than the oil droplet detected by the first vision detection member 410, control the second suspension device 102 to drive the smoke machine body 200 to move downward in the first direction.

[0184] In this embodiment, the steps of S33 specifically further include:

[0185] S3301: If the first vision detection member 410 detects that there is an oil droplet at the bottom of the smoke machine body 200, control the second suspension device 102 to drive the smoke machine body 200 to move downward in the first direction;

[0186] S3302: If the second vision detection component 420 detects oil droplets at the bottom of the range hood body 200, control the first suspension device 101 to drive the range hood body 200 to move downward in the first direction;

[0187] S3303: The vision detection component 400 detects the bottom of the range hood body 200 again. If the vision detection component 400 detects that there are no oil droplets at the bottom of the range hood body 200, control the suspension device 100 to drive the range hood body 200 to reset.

[0188] It can be understood that in step S3301, if the first vision detection component 410 detects oil droplets at the left end of the bottom of the smoke collecting hood 220, control the second suspension device 102 to drive the range hood body 200 to move downward in the first direction. The range hood body 200 tilts, and then the oil droplets flow to the oil receiving table 271 and are guided into the oil cup 270 by the oil receiving table 271.

[0189] In step S3302, if the second vision detection component 420 detects oil droplets at the right end of the bottom of the smoke collecting hood 220, control the first suspension device 101 to drive the range hood body 200 to move downward in the first direction. The range hood body 200 tilts, and then the oil droplets flow to the oil receiving table 271 and are guided into the oil cup 270 by the oil receiving table 271.

[0190] In summary, the embodiment of the present invention provides a range hood 010 and its control method. In the first aspect, by providing at least two suspension devices 100 on the range hood body 200, when the range hood body 200 is not in a horizontal state, at least two suspension devices 100 can drive the range hood body 200 to move in the first direction, and can perform up and down automatic adjustment or automatic leveling on the range hood body 200. Such a setting avoids the deviation of the range hood 010 caused by the micro-vibration generated by the motor operation or other reasons, ensures the flatness and beauty of the range hood body 200 and the range hood body 200 and the cabinet 020, improves the user experience, and at the same time reduces the installation difficulty of the range hood body 200. In the second aspect, by providing a vision detection component 400 and at least two suspension devices 100 on the range hood body 200, when the vision detection component 400 detects oil droplets at the bottom of the range hood body 200, the suspension device 100 drives the range hood body 200 to move in the first direction so that the oil droplets fall into the oil cup 270; such a setting can automatically identify whether there is a risk of oil dripping in the range hood 010, and at the same time can automatically adjust the tilt angle of the range hood body 200 to improve the oil path direction, thereby solving the above-mentioned oil dripping risk. In the third aspect, by providing at least two suspension devices 100 on the range hood body 200, when the smoke extraction effect of the range hood 010 is not good, at least two suspension devices 100 can drive the range hood body 200 to move in the first direction, and improve the smoke extraction effect by adjusting the position of the range hood 010.

[0191] Furthermore, the present application also adjusts the negative pressure area and the smoke gathering angle of the range hood 010 by adding a left detection member 250, a right detection member 260 and a front detection member 240 in combination with the suspension device 100, thereby improving the smoke suction effect of the range hood 010, better gathering the cooking fumes, and avoiding the phenomenon of fume leakage.

[0192] Furthermore, the present application also sets at least two ejection structures 300 to adjust the front and rear heights of the range hood 010, makes a compensatory adjustment to the oil guiding of the range hood 010, and accelerates the process of guiding the dirty oil into the oil cup 270 by changing the inclination angle of the smoke collecting hood 220 and the oil mesh inside the smoke collecting hood 220, thus optimizing the oil path of the range hood 010.

[0193] The above are only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. An oil fume purifier, characterized in that, Comprising: A range hood body (200), with an oil cup (270) provided at the bottom of the range hood body (200); At least two suspension devices (100), the at least two suspension devices (100) are spaced apart and fixed to the wall surface, and the output ends of the at least two suspension devices (100) are respectively connected to the left and right ends of the range hood body (200); A visual detection component (400), the visual detection component (400) is arranged on the range hood body (200), the visual detection component (400) is communicatively connected to the at least two suspension devices (100), when the visual detection component (400) detects that there are oil droplets at the bottom of the range hood body (200), the suspension device (100) drives the range hood body (200) to move in a first direction so that the oil droplets fall into the oil cup (270).

2. The range hood according to claim 1, wherein, The range hood (010) further comprises at least two ejection structures (300), the at least two ejection structures (300) are respectively arranged at the left and right ends of the range hood body (200) and the output ends of the ejection structures (300) face the wall surface, and the ejection structures (300) are used to drive the range hood body (200) to move in a second direction; And / or, the range hood (010) further comprises a horizontal sensing component (230), the horizontal sensing component (230) is arranged on the range hood body (200), the horizontal sensing component (230) is used to detect the levelness of the range hood body (200), and the horizontal sensing component (230) is communicatively connected to the at least two suspension devices (100).

3. The range hood according to claim 1, wherein, The range hood body (200) comprises a main machine (210), a smoke collecting hood (220) and the oil cup (270), the main machine (210) is arranged above the smoke collecting hood (220), the oil cup (270) is arranged below the smoke collecting hood (220), and oil receiving platforms (271) are arranged at both the left and right ends of the bottom of the smoke collecting hood (220); The output ends of the at least two suspension devices (100) are connected to the left and right ends of the top of the main machine (210); The visual detection component (400) is arranged at the bottom of the back of the smoke collecting hood (220) so that the monitoring position of the visual detection component (400) is between the smoke collecting hood (220) and the oil cup (270).

4. The range hood according to claim 3, wherein, Left detection components (250) are provided on the left side wall of the smoke collecting hood (220), and the left detection components (250) are used to detect the amount of oil fume escaping from the left side of the range hood body (200); Right detection components (260) are provided on the right side wall of the smoke collecting hood (220), and the right detection components (260) are used to detect the amount of oil fume escaping from the right side of the range hood body (200); Front detection components (240) are provided on the front side wall of the smoke collecting hood (220), and the front detection components (240) are used to detect the amount of oil fume escaping from the front side of the range hood body (200); The host computer (210) is internally provided with a control module, and the control module is communicatively connected to the left detection member (250), the right detection member (260), the front detection member (240), the suspension device (100), and the visual detection member (400); and / or, the visual detection member (400) at least includes a first visual detection member (410) and a second visual detection member (420). The first visual detection member (410) is disposed at the bottom left end of the back surface of the smoke collecting hood (220), and the second visual detection member (420) is disposed at the bottom right end of the back surface of the smoke collecting hood (220); The at least two suspension devices (100) include a first suspension device (101) and a second suspension device (102). The first suspension device (101) and the second suspension device (102) are spaced apart and fixed to the wall surface. The first suspension device (101) is connected to the top left end of the back surface of the host computer (210), and the output end of the second suspension device (102) is connected to the top right end of the back surface of the host computer (210).

5. A control method for an oil fume machine, characterized in that, The range hood according to any one of claims 1-4; The control method includes the following steps: Determine whether the range hood body (200) is in a working state; If the range hood body (200) is in a working state, detect whether there is smoke leakage, and automatically adjust the smoke gathering action of the range hood body (200) according to the amount of oil fume escaping; If the range hood body (200) is not in a working state, identify the oil droplets at the bottom of the range hood body (200), and automatically adjust the range hood body (200) according to the position and size of the oil droplets present.

6. The control method of the range hood according to claim 5, wherein If the range hood body (200) is in a working state, detect whether there is smoke leakage, and automatically adjust the smoke gathering action of the range hood body (200) according to the amount of oil fume escaping from the smoke leakage, including the following steps: Detect the amount of oil fume escaping from the front side, the left side, or the right side of the range hood body (200); If the amount of oil fume escaping from the left side or the right side is greater than the set value W, control the first suspension device (101) or the second suspension device (102) to drive the range hood body (200) to move downward along the first direction; If the amount of oil fume escaping from the front side is greater than the set value W, control the first suspension device (101) and the second suspension device (102) to drive the range hood body (200) to move downward along the first direction simultaneously; Detect again the amount of oil fume escaping from the front side, the left side, or the right side of the range hood body (200); If the amount of oil fume escaping from the front side, the left side, or the right side is less than the set value W, control the first suspension device (101) and / or the second suspension device (102) to drive the range hood body (200) to reset.

7. The control method of the range hood according to claim 5, wherein If the range hood body (200) is not in the working state, identify the oil droplets at the bottom of the range hood body (200), and automatically adjust the range hood body (200) according to the position and size of the oil droplets, including the following steps: Compensate and adjust the tilt angle of the range hood body (200); The first vision detection member (410) and the second vision detection member (420) simultaneously detect whether there are oil droplets at the bottom of the range hood body (200); If the vision detection member (400) detects that there are oil droplets at the bottom of the range hood body (200), control the suspension device (100) to drive the range hood body (200) to move in the first direction.

8. The control method of the range hood according to claim 7, characterized in that If the vision detection member (400) detects that there are oil droplets at the bottom of the range hood body (200), control the suspension device (100) to drive the range hood body (200) to move in the first direction, including the following steps: If the first vision detection member (410) detects that there are oil droplets at the bottom of the range hood body (200), control the second suspension device (102) to drive the range hood body (200) to move downward in the first direction; If the second vision detection member (420) detects that there are oil droplets at the bottom of the range hood body (200), control the first suspension device (101) to drive the range hood body (200) to move downward in the first direction; The vision detection member (400) detects the bottom of the range hood body (200) again. If the vision detection member (400) detects that there are no oil droplets at the bottom of the range hood body (200), control the suspension device (100) to drive the range hood body (200) to reset.

9. The control method of the range hood according to claim 7, characterized in that If the vision detection member (400) detects that there are oil droplets at the bottom of the range hood body (200), control the suspension device (100) to drive the range hood body (200) to move in the first direction, and further include the following steps: If the first vision detection member (410) and the second vision detection member (420) simultaneously detect that there are oil droplets at the bottom of the range hood body (200), compare the size of the oil droplets detected by the first vision detection member (410) with the size of the oil droplets detected by the second vision detection member (420) to judge the size of the two oil droplets; If there is a difference in the size of the two oil droplets, control the suspension device (100) at the end with the smaller oil droplet to drive the range hood body (200) to move downward in the first direction; The horizontal sensing member (230) detects the tilt angle of the range hood body (200). If the tilt angle is greater than 10 degrees, pause for a period of time and then control the suspension device (100) to drive the range hood body (200) to reset; Control the suspension device (100) at the end with the larger oil droplet to drive the range hood body (200) to move downward in the first direction; The horizontal sensor (230) detects the tilt angle of the hood body (200) again. If the tilt angle is greater than 10 degrees, after pausing for a period of time, the suspension device (100) is controlled to drive the hood body (200) to reset.

10. The control method of the range hood according to claim 7, wherein Performing compensation adjustment on the tilt angle of the hood body (200) includes the following steps: Controlling the first suspension device (101) and the second suspension device (102) to drive the hood body (200) to move downward along a first direction simultaneously; Controlling the ejection structure (300) to drive the hood body (200) to move along a second direction; The horizontal sensor (230) detects the tilt angle of the hood body (200). If the tilt angle is T, after pausing for a period of time, the ejection structure (300) and the suspension device (100) are controlled to drive the hood body (200) to reset.

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