A smoke exhaust power mechanism, a cooking fume treatment device and a control method

Abstract

The present application relates to the technical field of household appliances, and more particularly to a smoke exhaust power mechanism, a smoke treatment device and a control method. The smoke exhaust power mechanism and the smoke treatment device comprise a first fan system, a second fan system and a smoke property detection assembly. The second fan system is arranged along an up-down direction with the first fan system. The smoke property detection assembly is used to detect the property information of the smoke. The working mode of the first fan system and the second fan system is controlled according to the property information by adjusting different working modes to adapt to different smoke conditions, improve the better adaptation effect of the smoke exhaust power mechanism to different smoke conditions, and the smoke exhaust power mechanism can always better absorb the smoke under different smoke conditions. The control method is used for the above smoke exhaust power mechanism or the above smoke treatment device, can realize better adaptation to different smoke conditions, and can always better absorb the smoke under different smoke conditions.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to a smoke exhaust power mechanism, a fume treatment device, and a control method. Background Technology

[0002] Range hoods have become an indispensable kitchen appliance in modern homes. Their main function is to remove cooking fumes during cooking, thus maintaining a clean kitchen environment. Existing range hoods consist of a casing and an exhaust power mechanism, which is located inside the casing. When the range hood is in use, the exhaust power mechanism creates a negative pressure zone in a certain area above the stove, drawing the cooking fumes into the hood. The filtered fumes are then exhausted outdoors through ductwork.

[0003] Most range hoods on the market today use axial flow fans as their exhaust power mechanism. Axial flow fans can be designed to be more compact, which is especially advantageous in kitchen environments with limited space. This allows the product to be smaller and provides more flexible installation and appearance design options.

[0004] Existing axial flow fans mostly use single-stage or multi-stage impellers. Since the position of the single-stage or multi-stage impellers does not change, the existing range hoods have poor adaptability to different oil fume conditions, and the range hoods cannot achieve a consistently good absorption effect for oil fumes under different oil fume conditions.

[0005] Therefore, there is an urgent need to design a new exhaust power mechanism, fume treatment device, and control method to improve the problem that range hoods have poor adaptability to different fume conditions and cannot achieve good absorption of fumes under different conditions. Summary of the Invention

[0006] The first objective of this invention is to provide a smoke exhaust power mechanism that can be well adapted to different oil fume conditions and can always achieve a good absorption effect on oil fumes under different oil fume conditions.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A smoke exhaust power mechanism, comprising:

[0009] First wind turbine system;

[0010] The second fan system is arranged vertically with the first fan system.

[0011] The oil fume property detection component is configured to detect the physical properties of oil fumes; and

[0012] The controller, the first fan system, the second fan system, and the oil fume property detection component are all connected to the controller for communication. The controller controls the working mode of the first fan system and the second fan system based on the property information.

[0013] As an optional solution, the oil fume property detection component includes a first oil fume property detection mechanism and / or a second oil fume property detection mechanism. The first oil fume property detection mechanism is communicatively connected to the controller and is located at the smoke inlet of the oil fume treatment device. The first oil fume property detection mechanism is configured to detect the first oil fume property information P at the smoke inlet. 检测1 The second oil fume property detection mechanism is communicatively connected to the controller and is located at the outlet of the oil fume treatment device. This second oil fume property detection mechanism is configured to detect the second oil fume property information P at the outlet. 检测2 ; and / or

[0014] The smoke exhaust power mechanism also includes a drive assembly configured to adjust the vertical spacing between the first fan system and the second fan system.

[0015] As an alternative, the first wind turbine system includes a first blade assembly, which includes a plurality of first blades arranged along a first rotation direction M; the second wind turbine system includes a second blade assembly, which is coaxially arranged with the first blade assembly, and includes a plurality of second blades arranged along a second rotation direction N; the first rotation direction M is opposite to the second rotation direction N, and the first rotation direction Q of the first blade assembly is opposite to the second rotation direction T of the second blade assembly.

[0016] As an optional solution, the first wind turbine system further includes a first sleeve, which is fitted around the outer periphery of the first blade assembly; and / or

[0017] The first fan system also includes a first silencer enclosure, which surrounds the outer periphery of a plurality of first blades and is fixedly connected to the first blades; and / or

[0018] The second fan system also includes a second sleeve, which is fitted around the outer periphery of the second blade assembly; and / or

[0019] The second fan system also includes a second silencer enclosure, which surrounds the outer periphery of a plurality of second blades and is fixedly connected to the second blades; and / or

[0020] A plurality of first blades include first long blades and first short blades, the first long blades and first short blades being arranged alternately along the circumference of the first blade assembly, the first dimension L1 of the first long blade along the radial direction of the first blade assembly being greater than the second dimension L2 of the first short blade along the radial direction of the first blade assembly; and / or

[0021] The plurality of second blades include a second long blade and a second short blade, the second long blade and the second short blade are arranged alternately along the circumference of the second blade assembly, and the third dimension L3 of the second long blade along the radial direction of the second blade assembly is greater than the fourth dimension L4 of the second short blade along the radial direction of the second blade assembly.

[0022] The second objective of this invention is to provide an oil fume treatment device that can be well adapted to different oil fume conditions and can always achieve a good absorption effect on oil fumes under different oil fume conditions.

[0023] To achieve this objective, the present invention adopts the following technical solution:

[0024] An oil fume treatment device includes a housing with an inlet. The oil fume treatment device also includes an exhaust power mechanism as described above, which is disposed inside the housing. The inlet, a second fan system, and a first fan system are arranged sequentially along the flow direction of the oil fumes.

[0025] The third objective of this invention is to provide a control method that can better adapt to different oil fume conditions and maintain a good absorption effect on oil fumes under different conditions.

[0026] To achieve this objective, the present invention adopts the following technical solution:

[0027] A control method for the above-mentioned exhaust power mechanism or the above-mentioned fume treatment device, the control method comprising:

[0028] To obtain information on the physical properties of cooking fumes; and

[0029] Based on the material property information, control the operating modes of the first and second fan systems.

[0030] As an alternative, the physical properties of cooking fumes include:

[0031] The first oil fume physical property information P at the smoke inlet of the oil fume treatment device 检测1 ; and / or

[0032] Second oil fume physical property information P at the outlet of the oil fume treatment device 检测2 .

[0033] As an optional solution, the steps for controlling the operating modes of the first and second fan systems based on material property information include:

[0034] First adjustment method: Based on the first oil fume physical property information P 检测1 Adjust the speed of the second fan system; and / or

[0035] Second adjustment method: Based on the second oil fume physical property information P 检测2Adjust the vertical distance L between the first fan system and the second fan system; and / or

[0036] Third adjustment method: Based on the second oil fume physical property information P 检测2 Adjust the speed of the first fan system.

[0037] As an optional solution, the adjustment order of the first adjustment method, the second adjustment method, and the third adjustment method is: first adjustment method, second adjustment method, and third adjustment method.

[0038] As an alternative solution, based on the first oil fume physical property information P 检测1 The steps for adjusting the speed of the second fan system include:

[0039] Obtain the first oil fume physical property information P 检测1 ;

[0040] Control the second fan system to operate at the first speed V1;

[0041] The first oil fume physical property information P 检测1 Compared with the first preset value P of the physical properties of oil fume 预设1 Compare;

[0042] If P 检测1 ≥P 预设1 Adjust the first rotational speed V1 to increase;

[0043] If P 检测1 <P 预设1 Return to the steps of controlling the second fan system to run at the first speed V1.

[0044] As an optional solution, the step of adjusting the increase in the first rotational speed V1 includes:

[0045] Obtain the second oil fume physical property information P 检测2 ;

[0046] The second oil fume physical property information P 检测2 Compared with the second oil fume physical property preset value P 预设2 Comparison:

[0047] If P 检测2 ≥P 预设2 Increase the vertical distance L between the first fan system and the second fan system, and control the first fan system to run at the second speed V2;

[0048] If P 检测2 <P 预设2 The first fan system is controlled to operate at the third speed V3, where V2 > V3.

[0049] As an optional solution, the step of controlling the first fan system to operate at a second speed V2 then includes:

[0050] Obtain the second oil fume physical property information P 检测2 ;

[0051] The second oil fume physical property information P 检测2 Compared with the third oil fume physical property preset value P 预设3 Comparison:

[0052] If P 检测2 ≥P 预设3 Adjust the second rotation speed V2 to increase, and return to obtain the second oil fume property information P. 检测2 Steps;

[0053] If P 检测2 <P 预设3 Return to the steps of controlling the second fan system to run at the first speed V1.

[0054] The beneficial effects of this invention are:

[0055] The exhaust power mechanism provided by this invention includes a first fan system, a second fan system, an oil fume property detection component, and a controller. The second fan system and the first fan system are arranged vertically. The oil fume property detection component is used to detect the property information of the oil fumes. The first fan system, the second fan system, and the oil fume property detection component are respectively connected to the controller. The controller controls the working mode of the first fan system and the second fan system according to the property information. By adjusting different working modes, it can adapt to different oil fume conditions, improve the adaptability of the exhaust power mechanism to different oil fume conditions, and ensure that the exhaust power mechanism can always absorb oil fumes well under different oil fume conditions.

[0056] The fume treatment device provided by the present invention, by applying the above-mentioned exhaust power mechanism, can achieve better adaptation to different fume conditions and can always achieve a good absorption effect on fume under different fume conditions.

[0057] The control method provided by this invention, used in the above-mentioned exhaust power mechanism or the above-mentioned oil fume treatment device, can achieve better adaptation to different oil fume conditions and can always achieve a good absorption effect of oil fumes under different oil fume conditions. Attached Figure Description

[0058] Figure 1 This is a cross-sectional view of the fume treatment device provided in Embodiment 1 of the present invention;

[0059] Figure 2 This is a schematic diagram of the working principle of the oil fume treatment device provided in Embodiment 1 of the present invention;

[0060] Figure 3This is a schematic diagram of the drive component and part of the first fan system provided in Embodiment 1 of the present invention;

[0061] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0062] Figure 5 This is a schematic diagram of the structure of a portion of the second fan system provided in Embodiment 1 of the present invention;

[0063] Figure 6 This is the oil fume movement analysis diagram provided in Embodiment 1 of the present invention;

[0064] Figure 7 This is a schematic diagram of the drive component and the first fan system provided in Embodiment 1 of the present invention;

[0065] Figure 8 This is a schematic diagram of the structure of the second fan system provided in Embodiment 1 of the present invention;

[0066] Figure 9 This is a flowchart of the control method provided in Embodiment 2 of the present invention;

[0067] Figure 10 This is a flowchart of the control method provided in Embodiment 3 of the present invention.

[0068] In the picture:

[0069] 1000. Fume treatment device;

[0070] 100. Smoke exhaust power mechanism; 200. Housing; 210. Main unit box; 2101. Outlet; 220. Smoke hood; 2201. Smoke inlet;

[0071] 10. First fan system; 11. First blade assembly; 111. First blade; 1111. First long blade; 1112. First short blade; 112. First connecting shaft; 12. First motor; 13. First sleeve; 131. First section; 132. Second section; 133. Guide groove; 14. First silencer; 141. First silencer body; 142. First noise reduction hole; 15. First mounting bracket;

[0072] 20. Second fan system; 21. Second blade assembly; 211. Second blade; 2111. Second long blade; 2112. Second short blade; 212. Second connecting shaft; 22. Second motor; 23. Second sleeve; 231. Third section; 232. Fourth section; 233. Fifth section; 234. Sixth section; 24. Second silencer; 241. Second silencer body; 242. Second noise reduction hole; 25. Second mounting bracket; 26. Third mounting bracket;

[0073] 30. Oil fume physical property testing components; 31. First oil fume physical property testing institution; 32. Second oil fume physical property testing institution;

[0074] 40. Controller;

[0075] 50. Drive assembly; 51. Rotary drive motor; 52. Worm gear; 521. First thread; 53. Sliding tooth structure; 531. Second thread; 54. Guide mechanism. Detailed Implementation

[0076] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings, not all of them.

[0077] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0078] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0079] In the description of the embodiments disclosed herein, terms such as "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0080] Example 1

[0081] like Figure 1As shown, this embodiment of the present disclosure provides an oil fume treatment device 1000. The oil fume treatment device 1000 has become one of the indispensable kitchen appliances in modern families. The main function of the oil fume treatment device 1000 is to remove oil fumes during cooking, thereby maintaining a good kitchen environment.

[0082] like Figure 1 As shown, the fume treatment device 1000 can be any type of device with fume treatment function, such as a top-mounted range hood, a side-suction range hood, or a top-suction range hood. All types of devices with fume treatment function are within the protection scope of this disclosure. This disclosure describes the structure of the fume treatment device 1000 using a top-suction range hood as an example.

[0083] like Figure 1 As shown, the fume treatment device 1000 includes a fume exhaust power mechanism 100 and a housing 200. The housing 200 includes a main unit box 210 and a fume collection hood 220 connected to each other. The fume collection hood 220 is provided with a fume inlet 2201. The fume exhaust power mechanism 100 is disposed in the main unit box 210. When the fume exhaust power mechanism 100 is working, a negative pressure is formed inside the main unit box 210. Under the action of the negative pressure, the fume outside the fume treatment device 1000 passes through the fume inlet 2201 and then passes through the fume collection hood 220 and the main unit box 210 in sequence. After the fume is filtered by the fume exhaust power mechanism 100, it forms clean filtered gas. The clean filtered gas is finally discharged to the outside from the outlet 2101 of the main unit box 210.

[0084] like Figure 1 As shown, the fume hood 220 can concentrate and collect external oil fumes, thereby achieving better absorption of external oil fumes by the fume treatment device 1000 and improving the absorption effect of the fume treatment device 1000 on oil fumes.

[0085] Currently, most fume treatment devices on the market use axial flow fans as the exhaust power mechanism. Axial flow fans can be designed to be more compact, which is especially advantageous in kitchen environments with limited space. This allows the product to be smaller and provides more flexible installation and appearance design options.

[0086] Existing axial flow fans mostly use single-stage or multi-stage impellers. Since the position of the single-stage or multi-stage impellers does not change, the existing range hoods have poor adaptability to different oil fume conditions, and the range hoods cannot achieve a consistently good absorption effect for oil fumes under different oil fume conditions.

[0087] To solve the above problems, such as Figure 1 and Figure 2As shown, the exhaust power mechanism 100 includes a first fan system 10, a second fan system 20, an oil fume property detection component 30, and a controller 40. The second fan system 20 and the first fan system 10 are arranged vertically. The oil fume property detection component 30 is used to detect the property information of the oil fume. The first fan system 10, the second fan system 20, and the oil fume property detection component 30 are respectively connected to the controller 40. The controller 40 controls the working mode of the first fan system 10 and the second fan system 20 according to the property information. By adjusting different working modes, it can adapt to different oil fume conditions, improve the adaptability of the exhaust power mechanism 100 to different oil fume conditions, and ensure that the exhaust power mechanism 100 can always absorb oil fumes well under different oil fume conditions.

[0088] Specifically, the physical property information of the oil fume can be at least one of the following: oil fume concentration, flow rate, flow volume, and temperature. A higher concentration, flow rate, flow volume, or temperature indicates a higher oil fume concentration. Adaptably, the oil fume physical property detection component 30 can be an oil fume concentration detection mechanism, an oil fume flow rate detection mechanism, an oil fume flow rate detection mechanism, a temperature detection mechanism, etc. Since the aforementioned mechanisms are common structures in the art, their specific structures will not be described in detail in this embodiment. All types of smoke concentration detection mechanisms, oil fume flow rate detection mechanisms, oil fume flow rate detection mechanisms, and temperature detection mechanisms are within the protection scope of this embodiment.

[0089] like Figure 1 and Figure 2 As shown, the oil fume property detection component 30 includes a first oil fume property detection mechanism 31 and a second oil fume property detection mechanism 32. The first oil fume property detection mechanism 31 is communicatively connected to the controller 40 and is located at the smoke inlet 2201 of the oil fume treatment device 1000. The first oil fume property detection mechanism 31 is used to detect the first oil fume property information P at the smoke inlet 2201. 检测1 The second oil fume property detection mechanism 32 is communicatively connected to the controller 40 and is located at the outlet 2101 of the oil fume treatment device 1000. The second oil fume property detection mechanism 32 is used to detect the second oil fume property information P at the outlet 2101. 检测2 Through the first oil fume physical property information P 检测1 Second oil fume physical property information P 检测2 The comprehensive detection can more realistically reflect the current complex and ever-changing oil fume situation. The controller 40 can control the working mode of the first fan system 10 and the second fan system 20 according to different oil fume conditions, thereby achieving a precise match between the corresponding working mode and the current oil fume situation. This makes the matching of the exhaust power mechanism 100 to different oil fume conditions more accurate, and the exhaust power mechanism 100 can achieve a better absorption effect on oil fumes under different oil fume conditions.

[0090] Specifically, such as Figure 2 As shown, in the controller 40, the operating modes of the first fan system 10 and the second fan system 20 can be set to match different oil fume conditions. When the controller 40 detects a specific oil fume condition, it can control the first fan system 10 and the second fan system 20 to operate in the corresponding mode, thus achieving the following: Figure 1 The exhaust power mechanism 100 shown can quickly adapt to different oil fume conditions, making it fast and accurate in matching different oil fume conditions. The exhaust power mechanism 100 can achieve better absorption of oil fumes under different oil fume conditions.

[0091] like Figure 1 and Figure 2 As shown, the controller 40 controls the working mode of the first fan system 10 and the second fan system 20 according to the material property information. This can include, but is not limited to, at least one of the first adjustment method, the second adjustment method, and the third adjustment method. Through the adjustment of various adjustment methods in combination, the exhaust power mechanism 100 can quickly and accurately match more different oil fume conditions, and the exhaust power mechanism 100 can achieve better absorption effect for oil fumes under more different oil fume conditions.

[0092] For example, the first adjustment method is: based on the first oil fume physical property information P 检测1 Adjust the speed of the second fan system 20; the second adjustment method is: based on the second oil fume property information P 检测2 The third adjustment method is to adjust the vertical distance L between the first fan system 10 and the second fan system 20; the third adjustment method is to adjust the distance L between them according to the second oil fume property information P. 检测2 Adjust the speed of the first fan system 10. By combining the first, second, and third adjustment methods and adjusting them in different sequences, a variety of working modes for the first fan system 10 and the second fan system 20 can be created. These multiple working modes can achieve precise matching for more different oil fume conditions.

[0093] It should be noted that the operating modes of the first fan system 10 and the second fan system 20 may also include other types of adjustment methods. The arrangement and combination of various types of adjustment methods to form the required operating modes of the first fan system 10 and the second fan system 20 are all within the protection scope of the embodiments of this disclosure.

[0094] For example, the controller 40 may control the working mode of the first fan system 10 and the second fan system 20 according to the material property information, including but not limited to the fourth adjustment method and the fifth adjustment method. The fourth adjustment method is to control the direction of the first fan system 10 according to the material property information; the fifth adjustment method is to control the direction of the second fan system 20 according to the material property information, etc.

[0095] like Figure 1 and Figure 3 As shown, the smoke exhaust power mechanism 100 also includes a drive component 50, which is used to adjust the distance between the first fan system 10 and the second fan system 20 in the vertical direction. By setting the drive component 50, the distance L between the first fan system 10 and the second fan system 20 in the vertical direction can be adjusted. The smoke exhaust power mechanism 100 has a simple structure and is easy to assemble.

[0096] For example, such as Figure 1 , Figure 3 and Figure 4 As shown, the drive assembly 50 includes a rotary drive motor 51, a worm gear 52, a sliding gear structure 53, and a guide mechanism 54. The worm gear 52 is fixedly connected to the output end of the rotary drive motor 51 and extends in the vertical direction. The sliding gear structure 53 is fixedly connected to the first fan system 10 and is disposed on one side of the worm gear 52 and screw-fitted with the worm gear 52. The guide mechanism 54 is used to move the corresponding first fan system 10 in the vertical direction. When the rotary drive motor 51 is working, the rotary drive motor 51 drives the worm gear 52 to rotate, and under the guidance of the guide mechanism 54, the sliding gear structure 53 can move in the vertical direction, thereby driving the first fan system 10 to move in the vertical direction. The cooperation between the sliding gear structure 53 and the worm gear 52 provides high transmission accuracy. By applying the drive assembly 50 with this structure, precise adjustment of the position of the first fan system 10 in the vertical direction can be achieved.

[0097] like Figure 1 , Figure 3 and Figure 4 As shown, the worm 52 is provided with a first thread 521, and the sliding tooth structure 53 is provided with a second thread 531. The first thread 521 is an external thread, and the second thread 531 is an internal thread that matches the first thread 521. The first thread 521 and the second thread 531 have the same direction of rotation and are threadedly engaged.

[0098] like Figure 1 , Figure 3 , Figure 4 and Figure 7As shown, the first fan system 10 has a guide groove 133 extending in the vertical direction. A corresponding guide mechanism 54 is installed within the guide groove 133, and the guide mechanism 54 can slide along the guide groove 133. Through the cooperation of the guide groove 133 and the guide mechanism 54, the first fan system 10 can move in the vertical direction. Furthermore, at least two guide grooves 133 can be provided. The use of two guide grooves 133 ensures more stable vertical movement of the first fan system 10 and also prevents rotation during vertical movement.

[0099] Of course, in other embodiments, the sliding tooth structure can also be fixedly connected to the second fan system to achieve the same effect.

[0100] Of course, in other embodiments, the first fan system and the second fan system can each be provided with a corresponding drive component. The two drive components can be adjusted simultaneously to achieve a faster adjustment of the distance L between the first fan system and the second fan system in the vertical direction. This enables the exhaust power mechanism to quickly and accurately match different oil fume conditions, so that the exhaust power mechanism can achieve a better absorption effect on oil fumes under different oil fume conditions.

[0101] Of course, in other embodiments, the guiding mechanism may also be a linear guide rail assembly, etc. All structures that can enable the first fan system to move in the vertical direction are within the protection scope of this optional embodiment.

[0102] Of course, in other embodiments, the driving component can also be other structures capable of linear drive, including but not limited to linear motors, gear rack assemblies, lead screw and nut assemblies, etc. All structures capable of linear drive are relatively mature structures in the art, and will not be described in detail in this disclosure.

[0103] Existing axial flow fans can be single-stage axial flow fans. However, single-stage axial flow fans have relatively low air pressure and air volume, which usually cannot meet the high back pressure operating environment of fume treatment devices. Although increasing the speed of a single-stage axial flow fan can increase its air pressure and air volume, the resulting noise problem cannot be solved. In addition, although increasing the number of impeller stages of an axial flow fan can increase air pressure, the presence of two stages of guide vanes leads to more energy loss, and the vibration problem of two-stage axial flow fans is more prominent, especially in high-resistance operating environments. Excessive vibration and noise may seriously affect the stable operation of fume treatment devices.

[0104] To solve the above problems, such as Figures 1-5As shown, the smoke exhaust power mechanism 100 includes a first fan system 10 and a second fan system 20. The first fan system 10 includes a first blade assembly 11, which includes a plurality of first blades 111 arranged along a first rotation direction M. The second fan system 20 includes a second blade assembly 21, which is coaxially arranged with the first blade assembly 11. The second blade assembly 21 includes a plurality of second blades 211 arranged along a second rotation direction N. The first rotation direction M is opposite to the second rotation direction N, and the first rotation direction Q of the first blade assembly 11 is opposite to the second rotation direction T of the second blade assembly 21. Figure 6 As shown, when the fumes enter the second blade 211 with a velocity u1, the fumes are diffused and deflected by the rotation of the second blade 211. The absolute velocity u2 of the fumes discharged downstream of the second blade 211 includes a rotational velocity component Δu1. The first blade 111, like the second blade 211, will deflect the incoming fumes in the opposite direction with a deflection Δu2. The two deflections are equal, i.e., Δu1 = Δu2. When the fumes flow out of the first blade 111, they still maintain the axial direction, i.e., u1 = u3. Thus, without the guide vanes, the exhaust power mechanism 100 of this embodiment can recover rotational kinetic energy and reduce the loss of total pressure.

[0105] Compared to existing two-stage axial flow fans, the exhaust power mechanism 100 of this disclosure embodiment does not require additional guide vanes, making its structure compact and cost-effective. Furthermore, the first blade assembly 11 and the second blade assembly 21, with opposite arrangement and rotation directions, cooperate to avoid airflow friction losses on existing guide vanes, reducing internal resistance losses and improving the working efficiency of the exhaust power mechanism 100. In high-resistance operating environments, the exhaust power mechanism 100 of this disclosure embodiment exhibits low vibration and low noise, achieving quiet operation of the fume treatment device 1000 and effectively improving the user experience.

[0106] Compared with traditional single axial flow fans, the exhaust power mechanism 100 of this disclosure embodiment can provide higher total pressure and a wider flow range for high-efficiency operation under the same flow conditions. This means that using the exhaust power mechanism 100 in the fume treatment device 1000 can effectively improve the exhaust efficiency. Especially when facing complex or long-distance exhaust duct systems, it can better overcome resistance and ensure smooth exhaust of fumes.

[0107] Combination Figure 1 and Figure 3 The structure of the first fan system 10 is described below, such as... Figure 1 and Figure 3As shown, the first blade assembly 11 also includes a first connecting shaft 112. Multiple first blades 111 surround the first connecting shaft 112 and are fixedly connected to it. The first fan system 10 also includes a first motor 12. The first connecting shaft 112 and the first motor 12 are coaxially fixed. The first motor 12 drives the first connecting shaft 112 to rotate, thereby enabling the synchronous rotation of the multiple first blades 111. The first fan system 10 has a simple structure, facilitating rapid assembly of the first blade assembly 11 and the first motor 12. It should be noted that the first connecting shaft 112 and the first blades 111 can be fixed by assembly, or they can be integrally formed through processes such as injection molding or casting.

[0108] like Figure 1 and Figure 7 As shown, the first fan system 10 also includes a first sleeve 13, which is sleeved on the outer periphery of the first blade assembly 11. The first sleeve 13 can achieve a better smoke collection effect for oil fumes, and can guide a large amount of oil fumes to the first blade assembly 11, thereby improving the oil fume extraction effect of the oil fume treatment device 1000.

[0109] like Figure 1 , Figure 3 and Figure 7 As shown, the first fan system 10 also includes a first mounting bracket 15, wherein the first motor 12 and the first sleeve 13 are fixed together by the first mounting bracket 15. By setting the first mounting bracket 15, a stable connection between the first motor 12 and the first sleeve 13 can be achieved, ensuring the stable and normal use of the first motor 12.

[0110] Of course, the first sleeve can be fixed to the main unit chassis by a mounting part (not shown in the figure), thereby achieving a stable connection between the first sleeve and the main unit chassis.

[0111] like Figure 1 and Figure 7 As shown, along the flow direction of the oil fumes, the cross-sectional area of ​​the first sleeve 13 decreases, thereby achieving a better collection effect of the first sleeve 13 on the oil fumes and improving the oil fume absorption effect of the oil fume treatment device 1000.

[0112] Specifically, such as Figure 7 As shown, the first sleeve 13 includes a first section 131 and a second section 132 that are connected to each other. The first section 131 and the second section 132 are arranged sequentially along the flow direction of the fumes. The cross-sectional area of ​​the first section 131 gradually decreases along the flow direction of the fumes; the first section 131 serves as a guide section, guiding the fumes into the first blade assembly 11. The cross-sectional area of ​​the second section 132 does not change along the flow direction of the fumes; the second section 132 is used to collect the fumes and guide the filtered gas to... Figure 1The outlet 2101 of the fume treatment device 1000 shown.

[0113] like Figure 1 and Figure 3 As shown, the first fan system 10 also includes a first silencer 14. The first silencer 14 is arranged around the outer periphery of multiple first blades 111 and is fixedly connected to the first blades 111. Due to the arrangement of the first silencer 14, the noise generated by the first blade assembly 11 during operation can be effectively reduced.

[0114] Specifically, such as Figure 1 and Figure 3 As shown, the first noise-reducing cover 14 includes a first noise-reducing cover body 141 and a first noise-reducing hole 142 formed thereon. The first noise-reducing hole 142 effectively absorbs noise generated during the operation of the first blade assembly 11. This type of first noise-reducing cover 14 has a simple structure and low cost. Furthermore, the first noise-reducing cover 14 can be made of noise-reducing materials such as damping sound insulation felt, sound insulation coating, vibration damping sound insulation board, and aluminum foam. All materials capable of absorbing or reflecting noise are within the protection scope of this disclosure embodiment.

[0115] like Figure 1 and Figure 3 As shown, the plurality of first blades 111 include first long blades 1111 and first short blades 1112. The first long blades 1111 and the first short blades 1112 are arranged alternately along the circumference of the first blade assembly 11. The first dimension L1 of the first long blade 1111 along the radial direction of the first blade assembly 11 is greater than the second dimension L2 of the first short blade 1112 along the radial direction of the first blade assembly 11. Through the alternating arrangement of the first long blades 1111 and the first short blades 1112, the formation of eddies in the first sleeve 13 can be suppressed, the formation of a low-speed zone inside the first sleeve 13 can be avoided, the friction loss between the oil fumes in the first sleeve 13 and the first blades 111 can be reduced, and the oil fumes in the first sleeve 13 can always have good kinetic energy, so that the oil fumes in the first sleeve 13 can be discharged smoothly from the outlet 2101.

[0116] like Figure 3 As shown, the outer end of the first short blade 1112 is fixedly connected to the first silencer 14. On the one hand, it can release the flow space near the blade root of the first short blade 1112. On the other hand, it can utilize the space at the blade tip of the first short blade 1112 to improve the work capacity of the first fan system 10.

[0117] like Figure 3As shown, the first long blade 1111 and the first short blade 1112 are twisted to achieve a degree of torsion, which greatly improves the working efficiency of the exhaust power mechanism 100. The first blade assembly 11 increases the flow rate of oil fumes, improves the high air volume and air pressure of the exhaust power mechanism 100, and enhances the oil fume extraction effect of the exhaust power mechanism 100. Among them, as... Figure 3 As shown, the ratio of the torsion of the first short blade 1112 to the torsion of the first long blade 1111 is greater than or equal to 1 / 6 and less than or equal to 2 / 3, further improving the high air volume and air pressure of the exhaust power mechanism 100, and further improving the fume extraction effect of the exhaust power mechanism 100. The ratio of the torsion of the first short blade 1112 to the torsion of the first long blade 1111 can be 1 / 6, 1 / 3, 1 / 2, 2 / 3, etc., and all values ​​or ranges within the range of greater than or equal to 1 / 6 and less than or equal to 2 / 3 are within the protection scope of this disclosure embodiment.

[0118] Combination Figure 1 and Figure 5 The structure of the second fan system 20 is described below, such as... Figure 1 and Figure 5 As shown, the second blade assembly 21 also includes a second connecting shaft 212. Multiple second blades 211 surround the second connecting shaft 212 and are fixedly connected to it. The second fan system 20 also includes a second motor 22, with the second connecting shaft 212 and the second motor 22 coaxially fixed. The second motor 22 drives the second connecting shaft 212 to rotate, thereby enabling the synchronous rotation of the multiple second blades 211. The structure is simple and facilitates rapid assembly of the second blade assembly 21 and the second motor 22. It should be noted that the second connecting shaft 212 and the second blades 211 can be fixed by assembly, or they can be integrally formed through processes such as injection molding or casting.

[0119] like Figure 1 and Figure 8 As shown, the second fan system 20 also includes a second sleeve 23, which is sleeved on the outer periphery of the second blade assembly 21. The second sleeve 23 can achieve a better smoke collection effect for oil fumes, and can divert a large amount of oil fumes to the second blade assembly 21, thereby improving the smoke absorption effect of the oil fume treatment device 1000.

[0120] like Figure 1 , Figure 5 and Figure 8 As shown, the second fan system 20 also includes a second mounting bracket 25, wherein the second motor 22 and the second sleeve 23 are fixed together by the second mounting bracket 25. The second mounting bracket 25 enables a stable connection between the second motor 22 and the second sleeve 23, ensuring the stable and normal use of the second motor 22.

[0121] like Figure 1 and Figure 8 As shown, the second sleeve 23 is fixed to the main unit 210 by the third mounting bracket 26, thereby achieving a stable connection between the second sleeve 23 and the main unit 210.

[0122] like Figure 1 and Figure 8 As shown, along the flow direction of the oil fumes, the cross-sectional area of ​​the second sleeve 23 decreases. The second sleeve 23 can effectively collect the oil fumes and improve the oil fume extraction effect of the oil fume treatment device 1000.

[0123] Specifically, such as Figure 8 As shown, the second sleeve 23 includes a third section 231, a fourth section 232, a fifth section 233, and a sixth section 234 that are connected to each other. These sections are arranged sequentially along the direction of the oil fume flow. As shown... Figure 8 As shown, the third section 231 is a horn-shaped constriction section, used to gather airflow. The fourth section 232 is a guide section, guiding airflow into the second blade assembly 21. The fifth section 233 is a straight section, used to gather airflow and guide it to the first sleeve 13. The sixth section 234 is a contraction section, which accelerates the fumes entering the first sleeve 13.

[0124] like Figure 1 As shown, the first blade assembly 11 is located above the second sleeve 23, and the first sleeve 13 is spaced apart on the outer periphery of the second sleeve 23. In addition to entering the first fan system 10 through the second fan system 20, the oil fumes can also enter the first fan system 10 through the gap between the first sleeve 13 and the second sleeve 23, thereby improving the oil fume absorption of the second fan system 20 and improving the oil fume absorption effect of the exhaust power mechanism 100.

[0125] like Figure 1 as well as Figure 5 As shown, the second fan system 20 also includes a second silencer 24. The second silencer 24 surrounds the outer periphery of the plurality of second blades 211 and is fixedly connected to the second blades 211. Due to the setting of the second silencer 24, the noise generated by the second blade assembly 21 during operation can be effectively reduced.

[0126] Specifically, such as Figure 1 as well as Figure 5As shown, the second noise-reducing cover 24 includes a second noise-reducing cover body 241 and a second noise-reducing hole 242 formed thereon. The second noise-reducing hole 242 effectively absorbs noise generated during the operation of the second blade assembly 21. This type of second noise-reducing cover 24 has a simple structure and low cost. Furthermore, the second noise-reducing cover 24 can be made of noise-reducing materials such as damping sound insulation felt, sound insulation coating, vibration damping sound insulation board, and aluminum foam. All materials capable of absorbing or reflecting noise are within the protection scope of this disclosure embodiment.

[0127] like Figure 1 as well as Figure 5 As shown, the multiple second blades 211 include second long blades 2111 and second short blades 2112. The second long blades 2111 and the second short blades 2112 are arranged alternately along the circumference of the second blade assembly 21. The third dimension L3 of the second long blade 2111 along the radial direction of the second blade assembly 21 is greater than the fourth dimension L4 of the second short blade 2112 along the radial direction of the second blade assembly 21. Through the alternating arrangement of the second long blades 2111 and the second short blades 2112, the formation of vortices in the second sleeve 23 can be suppressed, the formation of a low-speed zone inside the second sleeve 23 can be avoided, the friction loss between the oil fumes in the second sleeve 23 and the second blades 211 can be reduced, and the oil fumes in the second sleeve 23 can always have good kinetic energy, so that the oil fumes in the second sleeve 23 can be discharged more smoothly to the first sleeve 13.

[0128] like Figure 5 As shown, the outer end of the second short blade 2112 is fixedly connected to the second silencer 24. On the one hand, it can release the flow space near the blade root of the second short blade 2112. On the other hand, it can utilize the space at the blade tip of the second short blade 2112 to improve the work capacity of the second fan system 20.

[0129] like Figure 5 As shown, the second long blade 2111 and the second short blade 2112 are twisted to achieve a degree of twist, which greatly improves the working efficiency of the exhaust power mechanism 100. The second blade assembly 21 increases the flow rate of oil fumes, improves the high air volume and air pressure of the exhaust power mechanism 100, and enhances the oil fume extraction effect of the exhaust power mechanism 100. Among them, as... Figure 5As shown, the ratio of the torsion of the second short blade 2112 to the torsion of the second long blade 2111 is greater than or equal to 1 / 6 and less than or equal to 2 / 3, further improving the high air volume and air pressure of the exhaust power mechanism 100, and further improving the fume extraction effect of the exhaust power mechanism 100. The ratio of the torsion of the second short blade 2112 to the torsion of the second long blade 2111 can be 1 / 6, 1 / 3, 1 / 2, 2 / 3, etc., and all point values ​​or range values ​​within the range of greater than or equal to 1 / 6 and less than or equal to 2 / 3 are within the protection scope of this disclosure embodiment.

[0130] like Figure 3 and Figure 5 As shown, the number of first blades 111 and the number of blades in the second blade 211 are coprime, further reducing the number of blades as shown. Figure 1 Discrete noise of the exhaust power mechanism 100 shown.

[0131] Example 2

[0132] This disclosure provides a control method for controlling the exhaust power mechanism 100 or the fume treatment device 1000 of Embodiment 1, such as... Figure 9 As shown, the control method includes:

[0133] To obtain information on the physical properties of cooking fumes; and

[0134] Based on the material property information, control the operating modes of the first and second fan systems.

[0135] The control method of this disclosure can be understood in conjunction with the structure of the smoke exhaust power mechanism 100 in Embodiment 1. However, it should be noted that the specific structure of the smoke exhaust power mechanism 100 in Embodiment 1 is not a mandatory limitation on the scope of protection of the control method of this application.

[0136] By adjusting different operating modes to adapt to different oil fume conditions, the efficiency can be improved, such as... Figure 1 The exhaust power mechanism 100 shown has a good adaptability to different oil fume conditions, and the exhaust power mechanism 100 can always absorb oil fumes well under different oil fume conditions.

[0137] Specifically, the physical property information of the oil fume can be at least one of the following: concentration, flow rate, flow volume, and temperature. A higher concentration, flow rate, flow volume, or temperature indicates a higher oil fume concentration. It should be noted that all physical property parameters reflecting the condition of the oil fume are within the protection scope of this disclosure.

[0138] It should be noted that this can be achieved through methods such as Figure 1The oil fume property detection component 30 shown is used to obtain the property information of oil fumes. The oil fume property detection component 30 can be an oil fume concentration detection mechanism, an oil fume flow rate detection mechanism, an oil fume flow rate detection mechanism, a temperature detection mechanism, etc. Since the aforementioned mechanisms are relatively common structures in the field, the specific structures corresponding to the aforementioned mechanisms will not be described in detail in this embodiment of the disclosure. All types of smoke concentration detection mechanisms, oil fume flow rate detection mechanisms, oil fume flow rate detection mechanisms, and temperature detection mechanisms are within the protection scope of this embodiment of the disclosure.

[0139] It should be noted that the oil fumes referred to in the embodiments of this disclosure are not limited to those found in... Figure 1 The fumes at the smoke inlet 2201 shown in this disclosure include, but are not limited to, kitchen fumes, fumes at the smoke inlet 2201, fumes inside the fume treatment device 1000, and fumes at the outlet 2101. All information on the physical properties of fumes that can directly or indirectly reflect the working status of the fume treatment device 1000 is within the protection scope of this disclosure.

[0140] Combination Figure 1 and Figure 2 The structure of the exhaust power mechanism 100 further explains the physical properties of the oil fumes. The physical properties of the oil fumes in this embodiment include, but are not limited to, the first oil fume physical property information P. 检测1 Second oil fume physical property information P 检测2 At least one of them. When the physical property information of the oil fume is only one of them, the controller 40 can quickly adjust the working mode of the first fan system 10 and the second fan system 20, and realize the rapid response of the exhaust power unit 100 or the oil fume treatment device 1000 to different oil fume conditions.

[0141] When the physical properties of the cooking fumes are of two types, the controller 40 determines the type of cooking fumes based on the first physical property information P. 检测1 Second oil fume physical property information P 检测2 The comprehensive detection can more realistically reflect the current complex and ever-changing oil fume situation. The controller 40 can control the working mode of the first fan system 10 and the second fan system 20 according to different oil fume conditions, thereby achieving a precise match between the corresponding working mode and the current oil fume situation. This makes the matching of the exhaust power mechanism 100 to different oil fume conditions more accurate, and the exhaust power mechanism 100 can achieve a better absorption effect on oil fumes under different oil fume conditions.

[0142] Specifically, such as Figure 2As shown, in the controller 40, the operating modes of the first fan system 10 and the second fan system 20 can be set to match different oil fume conditions. When the controller 40 detects a specific oil fume condition, it can control the first fan system 10 and the second fan system 20 to operate in the corresponding mode, thus achieving the following: Figure 1 The exhaust power mechanism 100 shown can quickly adapt to different oil fume conditions, making it fast and accurate in matching different oil fume conditions. The exhaust power mechanism 100 can achieve better absorption of oil fumes under different oil fume conditions.

[0143] Based on the material property information, the operating modes of the first and second fan systems can include, but are not limited to, at least one of the first, second, and third adjustment methods. Through combinations of these adjustment methods, the following can be achieved: Figure 1 The central exhaust power mechanism can quickly and accurately match 100 different types of oil fume conditions. Figure 1 The central exhaust power unit 100 can achieve better absorption of oil fumes under more different oil fume conditions.

[0144] For example, such as Figure 1 As shown, the first adjustment method is: based on the first oil fume physical property information P 检测1 Adjust the speed of the second fan system 20; the second adjustment method is: based on the first oil fume property information P 检测1 Second oil fume physical property information P 检测2 The third adjustment method is to adjust the vertical distance L between the first fan system 10 and the second fan system 20; the third adjustment method is to adjust the distance L between them according to the first oil fume property information P. 检测1 Second oil fume physical property information P 检测2 Adjust the speed of the first fan system 10. By combining the first, second, and third adjustment methods and adjusting them in different sequences, a variety of working modes for the first fan system 10 and the second fan system 20 can be created. These multiple working modes can achieve precise matching for more different oil fume conditions.

[0145] It should be noted that the operating modes of the first fan system 10 and the second fan system 20 may also include other types of adjustment methods. The arrangement and combination of various types of adjustment methods to form the required operating modes of the first fan system 10 and the second fan system 20 are all within the protection scope of the embodiments of this disclosure.

[0146] For example, the operating modes of the first fan system and the second fan system can be controlled according to the material property information, including but not limited to the fourth adjustment method and the fifth adjustment method. The fourth adjustment method is to control the direction of the first fan system 10 according to the material property information; the fifth adjustment method is to control the direction of the second fan system 20 according to the material property information, etc.

[0147] As an optional solution, the adjustment order of the first, second, and third adjustment methods is: first adjustment method, second adjustment method, and third adjustment method, as follows: Figure 1 As shown, since the second fan system 20 is closest to the oil fume with the highest concentration, its operating mode has a significant impact on oil fume absorption, accounting for 60% of the influence. Therefore, based on the first oil fume property information P... 检测1 Adjusting the speed of the second fan system 20 allows for rapid adjustment of the operating modes of both the first and second fan systems. If the first adjustment method achieves good fume extraction performance from the fume treatment device 1000, no further adjustments are needed, enabling rapid adjustment of the operating mode of the fume extraction power mechanism 100. The second adjustment method has a slightly weaker impact on fume absorption, and the third adjustment method has an even weaker impact. Therefore, by sequentially adjusting using the first, second, and third methods, a rapid and precise adjustment of the operating mode of the fume extraction power mechanism 100 can be achieved.

[0148] Example 3

[0149] This disclosure provides a control method, which is a further refinement of the control method in Embodiment 3, such as... Figure 10 As shown, the control method includes:

[0150] S11: Obtain the first oil fume physical property information P 检测1 ;

[0151] S12: Control the second fan system to operate at the first speed V1;

[0152] S13: Transfer the first oil fume physical property information P 检测1 Compared with the first preset value P of the physical properties of oil fume 预设1 Comparison: If P 检测1 ≥P 预设1 If P 检测1 <P 预设1 Return to S12;

[0153] S14: Adjust the first rotational speed V1 to increase;

[0154] It should be noted that the first preset value P of the physical properties of the oil fume 预设1 It can be a point value or a range, when the first preset value P of the oil fume physical property is... 预设1 When the range is within a certain range, the speed adjustment of the second fan system is relatively stable, and there will be no sudden increase or decrease.

[0155] P 检测1 ≥P 预设1 This indicates that if the second wind turbine system continues to operate at the current first speed V1, such as Figure 1 The oil fume at the inlet 2201 of the oil fume treatment device 1000 shown cannot be absorbed effectively. Therefore, it is necessary to increase the first rotation speed V1 to achieve rapid and large-scale absorption of oil fume at the inlet 2201 of the oil fume treatment device 1000, thereby rapidly reducing the concentration of oil fume at the inlet 2201 of the oil fume treatment device 1000.

[0156] For example, the first rotational speed V1 can be adjusted according to the following formula:

[0157] V1=n1*△V1+V 10 ;

[0158] Among them, V 10 Let n1 be the initial value of the first rotational speed V1; n1 is the number of times the first rotational speed V1 is adjusted, n1≥0; ΔV1 is the adjustment amount of V1 each time.

[0159] Of course, the first rotational speed V1 can also be adjusted in other ways, as long as the formula for adjusting the first rotational speed V1 in an increasing manner is within the protection scope of this optional embodiment.

[0160] If P 检测1 <P 预设1 This indicates that the second fan system can maintain a moderate oil fume concentration at the smoke inlet 2201 when operating at the current first speed V1. In other words, the current operation of the second fan system 20 at the first speed V1 is in line with the current oil fume situation, so the second fan system 20 should continue to operate at the current first speed V1.

[0161] S21: Obtain the second oil fume physical property information P 检测2 ;

[0162] S22: Transfer the second oil fume physical property information P 检测2 Compared with the second oil fume physical property preset value P 预设2 Comparison: If P 检测2 ≥P 预设2 Perform S23; if P 检测2 <P 预设2 Then proceed with S24.

[0163] S23: Increase the vertical distance L between the first fan system and the second fan system, and control the first fan system to run at the second speed V2;

[0164] It should be noted that the second oil fume physical property information P 检测2 It can be a point value or a range, when the second oil fume physical property information P 检测2 When the range is within a certain range, the speed adjustment of the first fan system is relatively stable, and there will be no sudden increase or decrease.

[0165] If P 检测2 ≥P 预设2 This indicates that the oil fume concentration between the first and second fan systems is relatively high at this time, and the distance L between the first and second fan systems in the vertical direction is relatively close. To improve the oil fume extraction effect of the exhaust power mechanism, the distance L between the first and second fan systems in the vertical direction is increased, and the first fan system is rotated at a larger second speed V2.

[0166] S24: Control the first fan system to operate at the third speed V3, where V2 > V3;

[0167] If P 检测2 <P 预设2 This indicates that the oil fume concentration between the first and second fan systems is normal, and the vertical distance L between the first and second fan systems is normal. Maintaining the current vertical distance L between the first and second fan systems and rotating the first fan system at a small third speed V3 ensures normal absorption of oil fumes while also achieving energy-saving performance of the oil fume treatment device.

[0168] S31: Obtain the second oil fume physical property information P 检测2 ;

[0169] S32: Transfer the second oil fume physical property information P 检测2 Compared with the third oil fume physical property preset value P 预设3 Comparison: If P 检测2 ≥P 预设3 Perform S33; if P 检测2 <P 预设3 Return to S12;

[0170] It should be noted that the third preset value P of the oil fume physical property 预设3 It can be a point value or a range, when the third oil fume physical property preset value P 预设3 When the range is within a certain range, the speed adjustment of the first fan system is relatively stable, and there will be no sudden increase or decrease.

[0171] S33: Adjust the second speed V2 to increase, and return to S31.

[0172] If P 检测2 ≥P 预设2 This indicates that the oil fume concentration between the first and second fan systems in the vertical direction is relatively high at this time. The second speed V2 is adjusted to increase in order to improve the oil fume extraction effect of the exhaust power mechanism.

[0173] For example, the third rotational speed V3 can be adjusted according to the following formula:

[0174] V2=n2*△V2+V 20 ;

[0175] Among them, V 20 n2 is the initial value of the second rotational speed V2; n2 is the number of times the second rotational speed V2 is adjusted, n2≥0; ΔV2 is the adjustment amount of V2 each time.

[0176] Of course, the second rotational speed V2 can also be adjusted in other ways, as long as the formula for adjusting the second rotational speed V2 in an increasing manner is within the protection scope of this optional embodiment.

[0177] If P 检测2 <P 预设2 This indicates that the oil fume concentration between the first and second fan systems is normal at this time. The first fan system is rotating at the current second speed V2, which can ensure normal absorption of oil fumes while also achieving energy-saving performance of the oil fume treatment device.

[0178] Furthermore, between S11 and S12, the following is also included: based on the first oil fume physical property information P 检测1 The oil fume treatment device is controlled to operate at different levels to ensure that the oil fume treatment device is matched with different oil fume conditions. For example, the levels of the oil fume treatment device include: low level, high level, stir-fry level, etc.

[0179] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A smoke exhaust power mechanism, characterized in that, include: First fan system (10); The second fan system (20) is arranged vertically with the first fan system (10); The oil fume property detection component (30) is configured to detect the physical property information of oil fumes; as well as The controller (40) is connected to the first fan system (10), the second fan system (20) and the oil fume property detection component (30) respectively. The controller (40) controls the working mode of the first fan system (10) and the second fan system (20) according to the property information. The first fan system (10) includes a first blade assembly (11), a first sleeve (13), and a first silencer (14). The first blade assembly (11) includes a plurality of first blades (111) arranged along a first direction of rotation M. The first sleeve (13) is fitted around the outer periphery of the first blade assembly (11). The first silencer (14) surrounds the outer periphery of the plurality of first blades (111) and is fixedly connected to the first blades (111). The second fan system (20) includes a second blade assembly (21), a second sleeve (23), and a second silencer (24). The second blade assembly (21) is coaxially arranged with the first blade assembly (11). The second blade assembly (21) includes a plurality of second blades (211) arranged along a second direction of rotation N. The second sleeve (23) is fitted around the outer periphery of the second blade assembly (21). The second silencer (24) surrounds the outer periphery of the plurality of second blades (211) and is fixedly connected to the second blades (211). The plurality of first blades (111) include a first long blade (1111) and a first short blade (1112), the first long blade (1111) and the first short blade (1112) are arranged alternately along the circumference of the first blade assembly (11), the first dimension L1 of the first long blade (1111) along the radial direction of the first blade assembly (11) is greater than the second dimension L2 of the first short blade (1112) along the radial direction of the first blade assembly (11); the outer end of the first short blade (1112) is fixedly connected to the first silencer (14); The plurality of second blades (211) include a second long blade (2111) and a second short blade (2112), the second long blade (2111) and the second short blade (2112) are arranged alternately along the circumference of the second blade assembly (21), the third dimension L3 of the second long blade (2111) along the radial direction of the second blade assembly (21) is greater than the fourth dimension L4 of the second short blade (2112) along the radial direction of the second blade assembly (21); the outer end of the second short blade (2112) is fixedly connected to the second silencer (24).

2. The smoke exhaust power mechanism according to claim 1, characterized in that, The oil fume property detection component (30) includes a first oil fume property detection mechanism (31) and a second oil fume property detection mechanism (32). The first oil fume property detection mechanism (31) is communicatively connected to the controller (40) and is located at the smoke inlet (2201) of the oil fume treatment device. The first oil fume property detection mechanism (31) is configured to detect the first oil fume property information P at the smoke inlet (2201). 检测1 The second oil fume property detection mechanism (32) is communicatively connected to the controller (40) and is located at the outlet (2101) of the oil fume treatment device. The second oil fume property detection mechanism (32) is configured to detect the second oil fume property information P at the outlet (2101). 检测2 ; The exhaust power mechanism further includes a drive assembly (50) configured to adjust the vertical spacing between the first fan system (10) and the second fan system (20).

3. The smoke exhaust power mechanism according to claim 1, characterized in that, The first rotation direction M is opposite to the second rotation direction N, and the first rotation direction Q of the first blade assembly (11) is opposite to the second rotation direction T of the second blade assembly (21).

4. An oil fume treatment device, comprising a housing (200), wherein the housing (200) has a smoke inlet (2201), characterized in that, The fume treatment device further includes a fume exhaust power mechanism as described in any one of claims 1 to 3, wherein the fume exhaust power mechanism is disposed within the housing (200), and the fume inlet (2201), the second fan system (20), and the first fan system (10) are arranged sequentially along the flow direction of the fume.

5. A control method, characterized in that, Employing the exhaust power mechanism as described in any one of claims 1 to 3 or the fume treatment device as described in claim 4, the control method includes: Obtain the physical properties of the oil fumes; and Based on the material property information, control the working mode of the first fan system (10) and the second fan system (20).

6. The control method according to claim 5, characterized in that, The physical properties of the oil fumes include: The first oil fume physical property information P of the fume inlet (2201) of the fume treatment device 检测1 ; The second oil fume physical property information P of the outlet (2101) of the oil fume treatment device 检测2 .

7. The control method according to claim 6, characterized in that, The steps of controlling the operating modes of the first fan system (10) and the second fan system (20) based on the material property information include: First adjustment method: Based on the first oil fume property information P 检测1 Adjust the speed of the second fan system (20); Second adjustment method: Based on the second oil fume property information P 检测2 Adjust the distance L between the first fan system (10) and the second fan system (20) in the vertical direction; Third adjustment method: Based on the second oil fume property information P 检测2 Adjust the speed of the first fan system (10).

8. The control method according to claim 7, characterized in that, The adjustment order of the first adjustment method, the second adjustment method, and the third adjustment method is: the first adjustment method, the second adjustment method, and the third adjustment method.

9. The control method according to claim 8, characterized in that, Based on the first oil fume property information P 检测1 The steps for adjusting the speed of the second fan system (20) include: Obtain the first oil fume physical property information P 检测1 ; Control the second fan system (20) to operate at a first speed V1; The first oil fume physical property information P 检测1 Compared with the first preset value P of the physical properties of oil fume 预设1 Compare; If P 检测1 ≥P 预设1 Adjust the first rotational speed V1 to increase; If P 检测1 <P 预设1 Return to the step of controlling the second fan system (20) to run at the first speed V1.

10. The control method according to claim 9, characterized in that, The steps for adjusting the first rotational speed V1 increase include: Obtain the second oil fume physical property information P 检测2 ; The second oil fume physical property information P 检测2 Compared with the second oil fume physical property preset value P 预设2 Comparison: If P 检测2 ≥P 预设2 The distance L between the first fan system (10) and the second fan system (20) in the vertical direction is increased, and the first fan system (10) is controlled to run at the second speed V2. If P 检测2 <P 预设2 The first fan system (10) is controlled to operate at a third speed V3, where V2 > V3.

11. The control method according to claim 10, characterized in that, The step of controlling the first fan system (10) to operate at a second speed V2, followed by: Obtain the second oil fume physical property information P 检测2 ; The second oil fume physical property information P 检测2 Compared with the third oil fume physical property preset value P 预设3 Comparison: If P 检测2 ≥P 预设3 Adjust the second rotational speed V2 to increase, and return to obtain the second oil fume property information P. 检测2 Steps; If P 检测2 <P 预设3 Return to the step of controlling the second fan system (20) to run at the first speed V1.

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