A range hood and a control method thereof

Abstract

The application discloses an extractor hood and a control method thereof, which comprises a smoke collecting cavity, a vortex ring generating device and a smoke discharging device; a flow channel is arranged between the smoke collecting cavity and the vortex ring generating device; the vortex ring generating device comprises a plurality of vortex ring generating structures which are coaxially arranged and have different diameters; a plurality of bottom cover plate structures are arranged on the side of the vortex ring generating device close to the flow channel, the plurality of bottom cover plate structures are coaxially arranged, and the plurality of bottom cover plate structures are arranged in one-to-one correspondence with the smoke inlets of the plurality of vortex ring generating structures; at least one electric push rod structure is arranged on each bottom cover plate structure; a control unit of the extractor hood is used for acquiring gear information of the extractor hood, determining the vortex ring generating structure of the vortex ring generating device for generating a vortex ring according to the gear information, and then controlling the electric push rod structures on the plurality of bottom cover plate structures to work, so that the smoke inlet of the vortex ring generating structure for generating the vortex ring is opened, and the smoke inlets of the remaining vortex ring generating structures are closed. The above technical scheme can improve the smoke suction effect and improve the user experience.

Description

Technical Field

[0001] This invention relates to the field of range hood technology, and in particular to a range hood and its control method. Background Technology

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. Installed above the kitchen stove, it quickly removes waste from combustion and harmful fumes produced during cooking, expelling them outdoors, reducing pollution, purifying the air, and providing safety features such as protection against poisoning and explosions.

[0003] Existing range hoods do not allow for visual observation of smoke extraction and exhaust, resulting in a poor user experience. Therefore, there is an urgent need to invent a new type of range hood that can adapt to different operating conditions and gather scattered fumes into a stable, visible smoke system, thereby improving the user experience. Summary of the Invention

[0004] This invention provides a range hood and its control method, which can match different operating conditions of the range hood to gather dispersed oil fumes into a stable smoke ring vortex, reduce the diffusion of oil fumes in the kitchen space, improve the smoke extraction effect, and at the same time make the smoke extraction effect visible, thereby improving the user experience.

[0005] In a first aspect, embodiments of the present invention provide a range hood, comprising: a smoke collection chamber, a vortex ring generator, and a smoke exhaust device; a flow channel is provided between the smoke collection chamber and the vortex ring generator.

[0006] The vortex ring generator includes multiple coaxially arranged vortex ring generating structures with different diameters; multiple bottom cover plate structures are arranged on the side of the vortex ring generator near the flow channel, the multiple bottom cover plate structures are arranged coaxially, and the multiple bottom cover plate structures are arranged one-to-one with the smoke inlet of the multiple vortex ring generating structures.

[0007] Each bottom cover plate structure is equipped with at least one electric push rod structure;

[0008] The range hood also includes a control unit. The control unit is used to obtain the range hood's speed information and determine the vortex ring generating structure of the vortex ring generator based on the speed information. Then, it controls the electric push rod structure on multiple bottom cover plate structures to work, so that the smoke inlet of the vortex ring generating structure that generates the vortex ring opens and the smoke inlet of the other vortex ring generating structures closes.

[0009] Optionally, multiple coaxially arranged vortex ring generating structures with different diameters include a first vortex ring generating structure, a second vortex ring generating structure and a third vortex ring generating structure, wherein the diameter of the first vortex ring generating structure is smaller than the diameter of the second vortex ring generating structure, and the diameter of the second vortex ring generating structure is smaller than the diameter of the third vortex ring generating structure.

[0010] The multiple bottom cover plate structures include a first bottom cover plate structure, a second bottom cover plate structure, and a third bottom cover plate structure. The first bottom cover plate structure is set to correspond with the smoke inlet of the first vortex ring generating structure, the second bottom cover plate structure is set to correspond with the smoke inlet of the second vortex ring generating structure, and the third bottom cover plate structure is set to correspond with the smoke inlet of the third vortex ring generating structure.

[0011] Optionally, the gear information includes a first gear, a second gear, and a third gear, where the wind speed at the first gear is less than the wind speed at the second gear, and the wind speed at the second gear is less than the wind speed at the third gear.

[0012] The control unit, when determining the gear position as the first gear, identifies the vortex ring generating structure of the vortex ring generator as the first vortex ring generating structure. It then controls the electric push rod structures on the first, second, and third bottom cover structures to operate, closing the smoke inlets of the second and third vortex ring generating structures and opening the smoke inlet of the first vortex ring generating structure, allowing the fumes to be discharged through the first vortex ring generating structure; or...

[0013] When the gear position is determined to be the second gear, the vortex ring generating structure of the vortex ring generator is determined to be the second vortex ring generating structure. Then, the electric push rod structures on the first, second, and third bottom cover structures are controlled to operate, causing the smoke inlets of the first and third vortex ring generating structures to close, and the smoke inlet of the second vortex ring generating structure to open, so that the oil fumes can be discharged through the second vortex ring generating structure; or...

[0014] When the gear information is determined to be the third gear, the vortex ring generating structure of the vortex ring generating device is determined to be the third vortex ring generating structure. Then, the electric push rod structure on the first bottom cover structure, the second bottom cover structure and the third bottom cover structure is controlled to work, so that the smoke inlets of the first vortex ring generating structure and the second vortex ring generating structure are closed, and the smoke inlet of the third vortex ring generating structure is opened, so that the oil fumes are discharged through the third vortex ring generating structure.

[0015] Optionally, the height of the multiple vortex ring generating structures increases sequentially in the direction outward from the axis.

[0016] Optionally, along the direction outward from the axis, the heights of the multiple vortex ring generating structures increase in an arithmetic progression.

[0017] Optionally, the vortex ring generating structure is a cylindrical structure.

[0018] Optionally, the electric linear actuator structure includes a motor-driven linear actuator.

[0019] Secondly, embodiments of the present invention provide a control method for a range hood, which is executed by the range hood described in the first aspect;

[0020] The control methods for range hoods include:

[0021] Get the range hood's power setting information;

[0022] The vortex ring generation structure of the vortex ring generator is determined based on the gear position information.

[0023] The electric push rod structure on multiple bottom cover plate structures is controlled to open the smoke inlet of the vortex ring generating structure and close the smoke inlet of the other vortex ring generating structures.

[0024] Optionally, multiple coaxially arranged vortex ring generating structures with different diameters include a first vortex ring generating structure, a second vortex ring generating structure, and a third vortex ring generating structure. The diameter of the first vortex ring generating structure is smaller than that of the second vortex ring generating structure, and the diameter of the second vortex ring generating structure is smaller than that of the third vortex ring generating structure. Multiple bottom cover plate structures include a first bottom cover plate structure, a second bottom cover plate structure, and a third bottom cover plate structure. The first bottom cover plate structure is correspondingly positioned with the smoke inlet of the first vortex ring generating structure, the second bottom cover plate structure is correspondingly positioned with the smoke inlet of the second vortex ring generating structure, and the third bottom cover plate structure is correspondingly positioned with the smoke inlet of the third vortex ring generating structure. Gear information includes a first gear, a second gear, and a third gear. The wind speed at the first gear is lower than the wind speed at the second gear, and the wind speed at the second gear is lower than the wind speed at the third gear.

[0025] The vortex ring generating structure of the vortex ring generator is determined based on the gear position information, including:

[0026] When the gear position information is determined to be the first gear, the vortex ring generating structure of the vortex ring generator is determined to be the first vortex ring generating structure; or...

[0027] When the gear position information is determined to be the second gear, the vortex ring generating structure of the vortex ring generator is determined to be the second vortex ring generating structure; or...

[0028] When the gear position information is determined to be the third gear position, the vortex ring generating structure of the vortex ring generator is determined to be the third vortex ring generating structure.

[0029] Optionally, controlling the operation of electric actuator structures on multiple bottom cover plate structures includes:

[0030] Control the electric push rod structure on any one of the bottom cover plate structures to push it towards the side closer to the flow channel, so that the bottom cover plate structure moves towards the side closer to the flow channel, thereby opening the smoke inlet of the vortex ring generating structure corresponding to the bottom cover plate structure; or control the electric push rod structure on the bottom cover plate structure to push it towards the side closer to the smoke exhaust device, so that the bottom cover plate structure moves towards the side closer to the smoke exhaust device, thereby closing the smoke inlet of the vortex ring generating structure corresponding to the bottom cover plate structure.

[0031] The solution provided by this invention includes a vortex ring generating device comprising multiple coaxially arranged vortex ring generating structures with different diameters. Multiple bottom cover plate structures are arranged coaxially on the side of the vortex ring generating device near the flow channel, and each bottom cover plate structure corresponds one-to-one with the smoke inlet of the multiple vortex ring generating structures. This allows each bottom cover plate structure to control the opening or closing of the smoke inlet of the vortex ring generating structure. Each bottom cover plate structure is equipped with at least one electric push rod structure. The control unit in the range hood obtains the range hood's speed information and determines the vortex ring generation time based on the speed information. The system generates a vortex ring structure and then controls multiple electric push rod structures on the bottom cover plate structure to move the bottom cover plate structure. This causes the smoke inlet of the vortex ring generating structure to open, while the smoke inlets of the other vortex ring generating structures close. This allows cooking fumes to enter the vortex ring generating structure with the open smoke inlet and then emit a smoke ring vortex with the same diameter as the vortex ring generating structure. This allows the range hood to match different operating conditions and gather dispersed cooking fumes into a stable smoke ring vortex, reducing the diffusion of cooking fumes in the kitchen space, improving the smoke extraction effect, and making the smoke extraction effect visible, thus enhancing the user experience.

[0032] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, although the drawings described below are some specific embodiments of the present invention, those skilled in the art can extend and extend the basic concepts of the device structure, driving method and manufacturing method disclosed and indicated by various embodiments of the present invention to other structures and drawings. Undoubtedly, these should all be within the scope of the claims of the present invention.

[0034] Figure 1 This is a schematic diagram of the structure of a range hood provided in an embodiment of the present invention;

[0035] Figure 2 This is a schematic diagram of the internal structure of a vortex ring generator provided in an embodiment of the present invention;

[0036] Figure 3 for Figure 2 A schematic diagram of the midsole cover plate structure;

[0037] Figure 4 A flowchart illustrating a control method for a range hood provided in an embodiment of the present invention;

[0038] Figure 5 A flowchart illustrating another control method for a range hood provided in an embodiment of the present invention;

[0039] In the picture:

[0040] 10. Smoke collection chamber; 20. Vortex ring generating device; 21. Vortex ring generating structure; 21A. First vortex ring generating structure; 21B. Second vortex ring generating structure; 21C. Third vortex ring generating structure; 22. Bottom cover plate structure; 22A. First bottom cover plate structure; 22B. Second bottom cover plate structure; 22C. Third bottom cover plate structure; 220. Electric push rod structure; 30. Smoke exhaust device; 40. Flow channel. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this invention. Obviously, the described embodiments are only some embodiments of this invention, not all embodiments. Based on the basic concepts disclosed and indicated in the embodiments of this invention, all other embodiments obtained by those skilled in the art are within the scope of protection of this invention.

[0042] Reference Figure 1 and Figure 2 As shown, the range hood includes: a smoke collection chamber 10, a vortex ring generator 20, and a smoke exhaust device 30; a flow channel 40 is provided between the smoke collection chamber 10 and the vortex ring generator 20; the vortex ring generator 20 includes multiple coaxially arranged vortex ring generating structures 21 with different diameters; multiple bottom cover plate structures 22 are provided on the side of the vortex ring generator 20 near the flow channel 40, the multiple bottom cover plate structures 22 are coaxially arranged, and the multiple bottom cover plate structures 22 are corresponding one-to-one with the smoke inlets of the multiple vortex ring generating structures 21; each bottom cover plate structure 22 is provided with at least one electric push rod structure 220; the range hood also includes a control unit, which is used to obtain the range hood's gear information, and determine the vortex ring generating structure 21 of the vortex ring generator 20 that generates the vortex ring according to the gear information, and then control the electric push rod structures 220 on the multiple bottom cover plate structures 22 to work, so that the smoke inlet of the vortex ring generating structure 21 that generates the vortex ring opens, and the smoke inlets of the other vortex ring generating structures 21 close.

[0043] The number of vortex ring generating structures 21 in the vortex ring generating device 20 can be two, three, or more; this embodiment of the invention does not impose a specific limitation on this. Figure 2 The illustration only shows, by way of example, three coaxially arranged vortex ring generating structures 21 with different diameters in the vortex ring generating device 20. It should be noted that the specific structure of the vortex ring generating structure 21 can be cylindrical, rectangular, or elliptical, etc., and this embodiment of the invention does not impose specific limitations on it. Figure 2This is for illustrative purposes only.

[0044] The number of bottom cover structures 22 provided on the side of the vortex ring generating device 20 near the flow channel 40 is the same as the number of vortex ring generating structures 21, for example, Figure 2 Three bottom cover structures 22 are shown as an example.

[0045] Specifically, the cooking fumes are collected through the smoke collection chamber 10, and then enter the vortex generator 20 through the flow channel 40. The vortex generator 20 can gather the cooking fumes into a stable smoke, spraying out smoke rings of different sizes, which are then discharged through the exhaust device 30. Thus, on the one hand, the smoke rings generated by the vortex generator 20 can effectively reduce the diffusion of cooking fumes in the kitchen space, making the smoke extraction effect visible and improving the extraction efficiency. On the other hand, the space between the vortex generator 20 and the exhaust device 30 of the range hood can be completely freed up, reducing the space-consuming problem of traditional range hoods. Furthermore, during the process of the vortex generator 20 gathering cooking fumes into a stable smoke ring, the control unit in the range hood (…) can be controlled… Figure 1 and Figure 2 (Not shown in the image) First, the control unit obtains the range hood's speed setting information. This means that when the range hood is turned on, it will operate at different speeds based on user settings or the concentration of cooking fumes. Different speeds correspond to different fan speeds; for example, speed settings include low, high, and stir-fry modes. Then, the control unit determines the vortex ring generating structure 21 of the vortex ring generating device 20 based on the current speed setting information. For example, if the current speed setting is low, the control unit will determine that the vortex ring generating structure 21 is a smaller diameter vortex ring generating structure 21. Next, the control unit controls the electric push rod structures 220 on multiple bottom cover structures 22 to operate, opening the smoke inlet of the vortex ring generating structure 21, allowing cooking fumes to enter through the smoke inlet and emit smoke rings of the corresponding size. The smoke inlets of the other vortex ring generating structures 21 are closed.

[0046] In this embodiment, the vortex ring generating device includes multiple coaxially arranged vortex ring generating structures with different diameters. Multiple bottom cover plate structures are provided on the side of the vortex ring generating device near the flow channel. These multiple bottom cover plate structures are coaxially arranged, and each bottom cover plate structure corresponds one-to-one with the smoke inlet of the multiple vortex ring generating structures. This allows each bottom cover plate structure to control the opening or closing of the smoke inlet of the vortex ring generating structure. Each bottom cover plate structure is equipped with at least one electric push rod structure. The control unit in the range hood obtains the range hood's speed information and determines the vortex ring to be generated by the vortex ring generating device based on the speed information. The system generates a vortex ring structure and then controls the operation of multiple electric push rod structures on the bottom cover plate structure to move the bottom cover plate structure. This causes the smoke inlet of the vortex ring generating structure to open, while the smoke inlets of the other vortex ring generating structures close. This allows the fumes to enter the vortex ring generating structure with the open smoke inlet and then emit a smoke ring vortex with the same diameter as the vortex ring generating structure. This enables the range hood to match different operating conditions and gather dispersed fumes into a stable smoke ring vortex, reducing the diffusion of fumes in the kitchen space, improving the smoke extraction effect, and making the smoke extraction effect visible, thus enhancing the user experience.

[0047] Optionally, in one embodiment, the vortex ring generating structure 21 is a cylindrical structure.

[0048] Optional, refer to the reference Figure 2 and Figure 3 As shown, multiple coaxially arranged vortex ring generating structures 21 with different diameters include a first vortex ring generating structure 21A, a second vortex ring generating structure 21B, and a third vortex ring generating structure 21C. The diameter of the first vortex ring generating structure 21A is smaller than the diameter of the second vortex ring generating structure 21B, and the diameter of the second vortex ring generating structure 21B is smaller than the diameter of the third vortex ring generating structure 21C. Multiple bottom cover plate structures 22 include a first bottom cover plate structure 22A, a second bottom cover plate structure 22B, and a third bottom cover plate structure 22C. The first bottom cover plate structure 22A is correspondingly arranged with the smoke inlet of the first vortex ring generating structure 21A, the second bottom cover plate structure 22B is correspondingly arranged with the smoke inlet of the second vortex ring generating structure 21B, and the third bottom cover plate structure 22C is correspondingly arranged with the smoke inlet of the third vortex ring generating structure 21C.

[0049] For example, Figure 2 The diagram shows that the first vortex ring generating structure 21A, the second vortex ring generating structure 21B, and the third vortex ring generating structure 21C are all cylindrical structures. The diameter of the first vortex ring generating structure 21A is D1, the diameter of the second vortex ring generating structure 21B is D2, and the diameter of the third vortex ring generating structure 21C is D3, satisfying D1 < D2 < D3. (Continue to refer to...) Figure 2 and Figure 3The multiple bottom cover plate structures 22 include a first bottom cover plate structure 22A, a second bottom cover plate structure 22B, and a third bottom cover plate structure 22C. The first bottom cover plate structure 22A is correspondingly arranged with the smoke inlet of the first vortex ring generating structure 21A, that is, the first bottom cover plate structure 22A is a circular structure with a diameter of D1. The second bottom cover plate structure 22B is correspondingly arranged with the smoke inlet of the second vortex ring generating structure 21B. Since the smoke inlet of the second vortex ring generating structure 21B is a circular structure surrounding the first vortex ring generating structure 21A, the second bottom cover plate structure 22B is also a circular structure surrounding the first bottom cover plate structure 22A. Ignoring the gap between the first bottom cover plate structure 22A and the second bottom cover structure 22B, the inner diameter of the second bottom cover structure 22B is approximately D1, and the outer diameter is D2. The smoke inlets of the third bottom cover structure 22C and the third vortex ring generating structure 21C are correspondingly set. Similarly, since the smoke inlet of the third vortex ring generating structure 21C is a ring structure surrounding the second vortex ring generating structure 21B, the third bottom cover structure 22C is a ring structure surrounding the second bottom cover structure 22B. Ignoring the gap between the second bottom cover structure 22B and the third bottom cover structure 22C, its inner diameter is approximately D2 and its outer diameter is D3.

[0050] It should be noted that the smoke inlets of the first vortex ring generating structure 21A, the second vortex ring generating structure 21B, and the third vortex ring generating structure 21C can be located on the same plane or have different height differences; no specific limitation is made here. Figure 2 This is merely an illustrative example, but is not limited thereto.

[0051] Optional, continue to refer to Figure 2 Along the direction X outward from the axis, the height of the multiple vortex ring generating structures 21 increases sequentially.

[0052] For example, with Figure 2 Taking the three vortex ring generating structures 21 as an example, the height of the first vortex ring generating structure 21A is h1, the height of the second vortex ring generating structure 21B is h2, and the height of the third vortex ring generating structure 21C is h3, where h1 < h2 < h3. This results in different heights on the oil fume outlet side of the multiple vortex ring generating structures 21. That is, the oil fume outlet of the second vortex ring generating structure 21B is closer to the exhaust device 30 than the oil fume outlet of the first vortex ring generating structure 21A, and the oil fume outlet of the third vortex ring generating structure 21C is closer to the exhaust device 30 than the oil fume outlet of the second vortex ring generating structure 21B. In other words, among the multiple vortex ring generating structures 21, the one with the larger diameter is closer to the exhaust device 30. This avoids the influence of the small-diameter vortex ring generating structure 21 when the smoke ring vortex is emitted through the large-diameter vortex ring generating structure 21, which is conducive to improving the oil fume gathering effect of the smoke ring vortex emitted by any diameter vortex ring generating structure 21, thereby improving the exhaust effect of the range hood.

[0053] It should be noted that the specific values ​​of h1, h2, and h3 can be set according to the actual situation, and there are no specific restrictions here. It is only necessary to ensure that h1 < h2 < h3. The difference between h1 and h2 and the difference between h2 and h3 can be the same or different, and there are no specific restrictions here either.

[0054] Furthermore, when the smoke inlets of multiple vortex ring generating structures 21 are not on the same plane, i.e. there is a height difference, the height difference between the smoke inlets of two adjacent vortex ring generating structures 21 should be less than the height difference between the two adjacent vortex ring generating structures 21, so that there is a height difference between the oil fume outlets of the two adjacent vortex ring generating structures 21, thereby avoiding the influence of the small-diameter vortex ring generating structure 21 when the large-diameter vortex ring generating structure 21 emits smoke ring vortices.

[0055] In an alternative embodiment, reference continues. Figure 2 Along the direction X outward from the axis, the height of the multiple vortex ring generating structures 21 increases in an arithmetic progression.

[0056] Specifically, the heights of the multiple vortex ring generating structures 21 increase in an arithmetic progression, that is, the heights h1, h2, and h3 increase in an arithmetic progression. In other words, the difference between the height h2 of the second vortex ring generating structure 21B and the height h1 of the first vortex ring generating structure 21A is the same as the difference between the height h3 of the third vortex ring generating structure 21C and the height h2 of the second vortex ring generating structure 21B.

[0057] It should be noted that since the smoke inlets of multiple vortex ring generating structures 21 may be located on the same plane or have height differences, the height difference between the oil fume outlets of any two adjacent vortex ring generating structures 21 may be the same or different. This is not specifically limited and can be set according to the actual situation. It is understandable that when the smoke inlets of multiple vortex ring generating structures 21 are on the same plane or when the height difference between the smoke inlets of any two adjacent vortex ring generating structures 21 is the same, the height difference between the oil fume outlets of any two adjacent vortex ring generating structures 21 will also be the same. Conversely, when the height difference between the smoke inlets of any two adjacent vortex ring generating structures 21 is different, the height difference between the oil fume outlets of any two adjacent vortex ring generating structures 21 will also be different.

[0058] For example, refer to Figure 2 When the height of multiple vortex ring generating structures 21 increases in an arithmetic manner along the direction X outward from the axis, and the height difference between the smoke inlets of any two adjacent vortex ring generating structures 21 is also the same, the height difference between the oil fume outlets of any two adjacent vortex ring generating structures 21 is also the same, that is, H.

[0059] Optionally, the gear information includes a first gear, a second gear, and a third gear, where the wind speed in the first gear is less than the wind speed in the second gear, and the wind speed in the second gear is less than the wind speed in the third gear. When the gear information is determined to be the first gear, the control unit determines that the vortex ring generating structure 21 of the vortex ring generating device 20 is the first vortex ring generating structure 21A, and then controls the electric push rod structure 220 on the first bottom cover structure 22A, the second bottom cover structure 22B, and the third bottom cover structure 22C to work, so that the smoke inlets of the second vortex ring generating structure 21B and the third vortex ring generating structure 21C are closed, and the smoke inlet of the first vortex ring generating structure 21A is opened, so that the oil fumes are discharged through the first vortex ring generating structure 21A.

[0060] For details, please refer to [link / reference]. Figure 2 , Figure 2 The first bottom cover structure 22A, the second bottom cover structure 22B, and the third bottom cover structure 22C shown in the figure are in the state where the smoke inlets of the first vortex ring generating structure 21A, the second vortex ring generating structure 21B, and the third vortex ring generating structure 21C are closed, respectively. When the control unit determines that the gear position information is the first gear, it determines that the vortex ring generating structure 21 of the vortex ring generating device 20 is the first vortex ring generating structure 21A. Then, it controls the electric push rod structure 220 on the first bottom cover structure 22A, the second bottom cover structure 22B, and the third bottom cover structure 22C to work. That is, it controls the electric push rod structure 220 on the first bottom cover structure 22A to push it towards the side closer to the flow channel 40, so that the first bottom cover structure 22A moves towards the side closer to the flow channel 40, thereby opening the smoke inlet of the first vortex ring generating structure 21A corresponding to the first bottom cover structure 22A. Meanwhile, the second bottom cover structure 22B and the third bottom cover structure 22C remain in their current positions, so that the smoke inlets of the second vortex ring generating structure 21B and the third vortex ring generating structure 21C are closed. In this way, the oil fumes can only be discharged through the first vortex ring generating structure 21A.

[0061] Alternatively, when the gear position information is determined to be the second gear position, the vortex ring generating structure 21 of the vortex ring generating device 20 is determined to be the second vortex ring generating structure 21B. Then, the electric push rod structure 220 on the first bottom cover structure 22A, the second bottom cover structure 22B, and the third bottom cover structure 22C is controlled to work, so that the smoke inlets of the first vortex ring generating structure 21A and the third vortex ring generating structure 21C are closed, and the smoke inlet of the second vortex ring generating structure 21B is opened, so that the oil fumes are discharged through the second vortex ring generating structure 21B.

[0062] For details, please refer to [link / reference]. Figure 2When the control unit determines that the gear information is the second gear, it determines that the vortex ring generating structure 21 of the vortex ring generating device 20 is the second vortex ring generating structure 21B. Then, it controls the electric push rod structure 220 on the first bottom cover structure 22A, the second bottom cover structure 22B, and the third bottom cover structure 22C to work. That is, it controls the electric push rod structure 220 on the second bottom cover structure 22B to push it towards the side closer to the flow channel 40, so that the second bottom cover structure 22B moves towards the side closer to the flow channel 40, thereby opening the smoke inlet of the second vortex ring generating structure 21B corresponding to the second bottom cover structure 22B. Meanwhile, the first bottom cover structure 22A and the third bottom cover structure 22C remain in their current positions, so that the smoke inlets of the first vortex ring generating structure 21A and the third vortex ring generating structure 21C are closed. In this way, the oil fumes can only be discharged through the second vortex ring generating structure 21B.

[0063] Alternatively, when the gear position information is determined to be the third gear position, the vortex ring generating structure 21 of the vortex ring generating device 20 is determined to be the third vortex ring generating structure 21C. Then, the electric push rod structure 220 on the first bottom cover structure 22A, the second bottom cover structure 22B, and the third bottom cover structure 22C is controlled to work, so that the smoke inlets of the first vortex ring generating structure 21A and the second vortex ring generating structure 21B are closed, and the smoke inlet of the third vortex ring generating structure 21C is opened, so that the oil fumes are discharged through the third vortex ring generating structure 21C.

[0064] For details, please refer to [link / reference]. Figure 2 When the control unit determines that the gear information is the third gear, it determines that the vortex ring generating structure 21 of the vortex ring generating device 20 is the third vortex ring generating structure 21C. Then, it controls the electric push rod structure 220 on the first bottom cover structure 22A, the second bottom cover structure 22B, and the third bottom cover structure 22C to work. That is, it controls the electric push rod structure 220 on the third bottom cover structure 22C to push it towards the side closer to the flow channel 40, so that the third bottom cover structure 22C moves towards the side closer to the flow channel 40, so that the smoke inlet of the third vortex ring generating structure 21C corresponding to the third bottom cover structure 22C opens, while the first bottom cover structure 22A and the second bottom cover structure 22B remain in their current positions, so that the smoke inlets of the first vortex ring generating structure 21A and the second vortex ring generating structure 21B close. In this way, the oil fumes can only be discharged through the third vortex ring generating structure 21C.

[0065] Optional reference Figure 2 and Figure 3 The electric push rod structure 220 includes a motor push rod, meaning the control unit can control the motor to rotate, thereby driving the push rod to extend or retract, which in turn moves the corresponding bottom cover plate structure 22.

[0066] Based on the same inventive concept, embodiments of the present invention also provide a control method for a range hood, executed by the range hood provided in any of the above embodiments, such as... Figure 4 As shown, the control methods for range hoods include:

[0067] S11. Obtain the range hood's speed setting information.

[0068] S12. Determine the vortex ring generation structure of the vortex ring generator based on the gear position information.

[0069] S13. Control the operation of the electric push rod structure on multiple bottom cover plate structures to open the smoke inlet of the vortex ring generating structure and close the smoke inlet of the other vortex ring generating structures.

[0070] In this embodiment, by setting and acquiring the range hood's speed setting information, and determining the vortex ring generating structure of the vortex ring generator based on the speed setting information, the electric push rod structures on multiple bottom cover plate structures are controlled to operate, thereby moving the bottom cover plate structures. This causes the smoke inlet of the vortex ring generating structure to open, while the smoke inlets of the other vortex ring generating structures close. This allows the fumes to enter the vortex ring generating structure with the open smoke inlet, and then emit a smoke ring vortex with the same diameter as the vortex ring generating structure. This enables the range hood to match different operating conditions and gather dispersed fumes into a stable smoke ring vortex, reducing the diffusion of fumes in the kitchen space, improving the smoke extraction effect, and making the smoke extraction effect visible, thus enhancing the user experience.

[0071] Continue to refer to Figure 2 and Figure 3 Multiple coaxially arranged vortex ring generating structures 21 with different diameters include a first vortex ring generating structure 21A, a second vortex ring generating structure 21B, and a third vortex ring generating structure 21C. The diameter of the first vortex ring generating structure 21A is smaller than the diameter of the second vortex ring generating structure 21B, and the diameter of the second vortex ring generating structure 21B is smaller than the diameter of the third vortex ring generating structure 21C. Multiple bottom cover plate structures 22 include a first bottom cover plate structure 22A, a second bottom cover plate structure 22B, and a third bottom cover plate structure 22C. The first bottom cover plate structure 22A is correspondingly arranged with the smoke inlet of the first vortex ring generating structure 21A, the second bottom cover plate structure 22B is correspondingly arranged with the smoke inlet of the second vortex ring generating structure 21B, and the third bottom cover plate structure 22C is correspondingly arranged with the smoke inlet of the third vortex ring generating structure 21C.

[0072] The wind speed settings include first, second, and third speeds. The wind speed at first speed is lower than at second speed, and the wind speed at second speed is lower than at third speed. For example... Figure 5 As shown, in Figure 4Based on this, the vortex ring generating structure of the vortex ring generator is determined according to the gear position information, including: when the gear position information is determined to be the first gear position, the vortex ring generating structure of the vortex ring generator is determined to be the first vortex ring generating structure; when the gear position information is determined to be the second gear position, the vortex ring generating structure of the vortex ring generator is determined to be the second vortex ring generating structure; and when the gear position information is determined to be the third gear position, the vortex ring generating structure of the vortex ring generator is determined to be the third vortex ring generating structure. Therefore, the control method of this range hood mainly includes the following steps:

[0073] S21. Obtain the range hood's speed setting information.

[0074] S22. When the gear information is determined to be the first gear, the vortex ring generating structure of the vortex ring generating device is determined to be the first vortex ring generating structure, and then step S25 is executed.

[0075] S23. When the gear information is determined to be the second gear, the vortex ring generating structure of the vortex ring generating device is determined to be the second vortex ring generating structure, and then step S26 is executed.

[0076] S24. When the gear information is determined to be the third gear, the vortex ring generating structure of the vortex ring generating device is determined to be the third vortex ring generating structure, and then step S27 is executed.

[0077] S25. Control the operation of the electric push rod structure on multiple bottom cover plate structures to open the smoke inlet of the first vortex ring generating structure and close the smoke inlets of the other vortex ring generating structures.

[0078] S26. Control the operation of the electric push rod structure on multiple bottom cover plate structures to open the smoke inlet of the second vortex ring generating structure and close the smoke inlet of the other vortex ring generating structures.

[0079] S27. Control the operation of the electric push rod structure on multiple bottom cover plate structures to open the smoke inlet of the third vortex ring generating structure and close the smoke inlets of the other vortex ring generating structures.

[0080] Optionally, controlling the operation of electric push rod structures on multiple bottom cover plate structures includes: controlling any one of the electric push rod structures on the bottom cover plate structure to push towards the side closer to the flow channel, thereby moving the bottom cover plate structure towards the side closer to the flow channel, so that the smoke inlet of the vortex ring generating structure corresponding to the bottom cover plate structure opens; or controlling the electric push rod structure on the bottom cover plate structure to push towards the side closer to the smoke exhaust device, thereby moving the bottom cover plate structure towards the side closer to the smoke exhaust device, so that the smoke inlet of the vortex ring generating structure corresponding to the bottom cover structure closes.

[0081] For details, please refer to [link / reference]. Figure 2 and Figure 3Depending on the initial state of the multiple bottom cover plate structures, the electric push rod structure 220 on the multiple bottom cover plate structures 22 is controlled to work, so that the smoke inlet of the vortex ring generating structure 21 that generates the vortex ring opens and the smoke inlet of the other vortex ring generating structures 21 closes. During this process, the electric push rod structure 220 on each bottom cover plate structure 22 can be selectively controlled to operate according to the initial state of the multiple bottom cover plate structures 22.

[0082] For example, if the initial state of multiple bottom cover plate structures is such that the smoke inlets of multiple vortex ring generating structures are closed, when it is necessary to open the smoke inlet of a certain vortex ring generating structure, it is only necessary to control the electric push rod structure on the bottom cover plate structure corresponding to that vortex ring generating structure to push it towards the side closer to the flow channel, thereby moving the bottom cover plate structure towards the side closer to the flow channel, thus opening the smoke inlet of the vortex ring generating structure corresponding to that bottom cover plate structure, while the remaining bottom cover plate structures remain unchanged. Alternatively, if the initial state of multiple bottom cover plate structures is such that the smoke inlets of multiple vortex ring generating structures are open, when it is necessary to control the smoke inlet of a certain vortex ring generating structure to open, it is only necessary to control the electric push rod structures on the bottom cover plate structures corresponding to all other vortex ring generating structures to push them towards the side closer to the smoke exhaust device, thereby moving the bottom cover plate structure towards the side closer to the smoke exhaust device, thus closing the smoke inlet of the corresponding vortex ring generating structure, while the smoke inlet of the vortex ring generating structure corresponding to the bottom cover plate structure that remains unchanged remains open.

[0083] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A range hood, characterized in that, include: The smoke collection chamber (10), the vortex ring generator (20), and the smoke exhaust device (30) are provided; a flow channel (40) is provided between the smoke collection chamber (10) and the vortex ring generator (20); The vortex ring generating device (20) includes multiple coaxially arranged vortex ring generating structures (21) with different diameters; the vortex ring generating device (20) has multiple bottom cover plate structures (22) on the side near the flow channel (40), the multiple bottom cover plate structures (22) are coaxially arranged, and the multiple bottom cover plate structures (22) are arranged one-to-one with the smoke inlets of the multiple vortex ring generating structures (21); Each of the bottom cover plate structures (22) is provided with at least one electric push rod structure (220); The range hood also includes a control unit, which is used to acquire the range hood's gear position information and determine the vortex ring generating structure (21) of the vortex ring generating device (20) to generate the vortex ring based on the gear position information. Then, the control unit controls the electric push rod structure (220) on the multiple bottom cover plate structures (22) to work, so that the smoke inlet of the vortex ring generating structure (21) that generates the vortex ring opens and the smoke inlet of the other vortex ring generating structures (21) closes.

2. The range hood according to claim 1, characterized in that, The multiple coaxially arranged vortex ring generating structures (21) with different diameters include a first vortex ring generating structure (21A), a second vortex ring generating structure (21B), and a third vortex ring generating structure (21C). The diameter of the first vortex ring generating structure (21A) is smaller than the diameter of the second vortex ring generating structure (21B), and the diameter of the second vortex ring generating structure (21B) is smaller than the diameter of the third vortex ring generating structure (21C). The plurality of bottom cover plate structures (22) include a first bottom cover plate structure (22A), a second bottom cover plate structure (22B), and a third bottom cover plate structure (22C). The first bottom cover plate structure (22A) is configured to correspond to the smoke inlet of the first vortex ring generating structure (21A), the second bottom cover plate structure (22B) is configured to correspond to the smoke inlet of the second vortex ring generating structure (21B), and the third bottom cover plate structure (22C) is configured to correspond to the smoke inlet of the third vortex ring generating structure (21C).

3. The range hood according to claim 2, characterized in that, The gear information includes a first gear, a second gear, and a third gear, wherein the wind speed at the first gear is less than the wind speed at the second gear, and the wind speed at the second gear is less than the wind speed at the third gear. The control unit is used to determine, when the gear information is determined to be the first gear, that the vortex ring generating structure (21) of the vortex ring generating device (20) is the first vortex ring generating structure (21A), and then control the electric push rod structure (220) on the first bottom cover structure (22A), the second bottom cover structure (22B), and the third bottom cover structure (22C) to operate, so that the smoke inlets of the second vortex ring generating structure (21B) and the third vortex ring generating structure (21C) are closed, and the smoke inlet of the first vortex ring generating structure (21A) is opened, so that the oil fumes are discharged through the first vortex ring generating structure (21A); or, When the gear position information is determined to be the second gear position, the vortex ring generating structure (21) of the vortex ring generating device (20) is determined to be the second vortex ring generating structure (21B). Then, the electric push rod structure (220) on the first bottom cover structure (22A), the second bottom cover structure (22B), and the third bottom cover structure (22C) is controlled to work, so that the smoke inlets of the first vortex ring generating structure (21A) and the third vortex ring generating structure (21C) are closed, and the smoke inlet of the second vortex ring generating structure (21B) is opened, so that the oil fumes are discharged through the second vortex ring generating structure (21B); or, When the gear position information is determined to be the third gear position, the vortex ring generating structure (21) of the vortex ring generating device (20) is determined to be the third vortex ring generating structure (21C). Then, the electric push rod structure (220) on the first bottom cover structure (22A), the second bottom cover structure (22B) and the third bottom cover structure (22C) is controlled to work, so that the smoke inlets of the first vortex ring generating structure (21A) and the second vortex ring generating structure (21B) are closed, and the smoke inlet of the third vortex ring generating structure (21C) is opened, so that the oil fumes are discharged through the third vortex ring generating structure (21C).

4. The range hood according to claim 1, characterized in that, Along the direction outward from the axis, the height of the plurality of vortex ring generating structures increases sequentially.

5. The range hood according to claim 4, characterized in that, Along the direction outward from the axis, the heights of the multiple vortex ring generating structures increase at an arithmetic progression.

6. The range hood according to claim 1, characterized in that, The vortex ring generating structure is a cylindrical structure.

7. The range hood according to claim 1, characterized in that, The electric actuator structure includes a motor actuator.

8. A control method for a range hood, characterized in that, Performed by the range hood according to any one of claims 1-7; The control method for the range hood includes: Obtain the range hood's power setting information; The vortex ring generating structure of the vortex ring generator is determined based on the gear position information. The electric push rod structures on the multiple bottom cover plate structures are controlled to operate, so that the smoke inlet of the vortex ring generating structure that generates the vortex ring opens, and the smoke inlet of the remaining vortex ring generating structures closes.

9. The control method for a range hood according to claim 8, characterized in that, The vortex ring generating structures, which are coaxially arranged and have different diameters, include a first vortex ring generating structure, a second vortex ring generating structure and a third vortex ring generating structure. The diameter of the first vortex ring generating structure is smaller than the diameter of the second vortex ring generating structure, and the diameter of the second vortex ring generating structure is smaller than the diameter of the third vortex ring generating structure. The plurality of bottom cover plate structures include a first bottom cover plate structure, a second bottom cover plate structure, and a third bottom cover plate structure. The first bottom cover plate structure is correspondingly arranged with the smoke inlet of the first vortex ring generating structure, the second bottom cover plate structure is correspondingly arranged with the smoke inlet of the second vortex ring generating structure, and the third bottom cover plate structure is correspondingly arranged with the smoke inlet of the third vortex ring generating structure. The gear information includes a first gear, a second gear, and a third gear. The wind speed at the first gear is less than the wind speed at the second gear, and the wind speed at the second gear is less than the wind speed at the third gear. The vortex ring generating structure for generating vortex rings by the vortex ring generator is determined based on the gear position information, including: When the gear position information is determined to be the first gear position, the vortex ring generating structure of the vortex ring generating device is determined to be the first vortex ring generating structure; or... When the gear position information is determined to be the second gear position, the vortex ring generating structure of the vortex ring generating device is determined to be the second vortex ring generating structure; or... When the gear position information is determined to be the third gear position, the vortex ring generating structure of the vortex ring generating device is determined to be the third vortex ring generating structure.

10. The control method for a range hood according to claim 8, characterized in that, Controlling the operation of the electric push rod structures on the multiple bottom cover plate structures includes: Control the electric push rod structure on any one of the bottom cover plate structures to push it towards the side closer to the flow channel, so as to move the bottom cover plate structure towards the side closer to the flow channel, thereby opening the smoke inlet of the vortex ring generating structure corresponding to the bottom cover plate structure; or, control the electric push rod structure on the bottom cover plate structure to push it towards the side closer to the smoke exhaust device, so as to move the bottom cover plate structure towards the side closer to the smoke exhaust device, thereby closing the smoke inlet of the vortex ring generating structure corresponding to the bottom cover plate structure.

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