Smoke exhaust power mechanism, lampblack treatment device and control method

Abstract

The invention relates to the technical field of household appliances, in particular to a fume exhaust power mechanism, a fume treatment device and a control method. The smoke exhaust power mechanism and the oil smoke treatment device comprise a first fan system, a second fan system and an oil smoke physical property detection assembly, the second fan system and the first fan system are arranged in the vertical direction, and the oil smoke physical property detection assembly is used for detecting oil smoke physical property information. The working modes of the first fan system and the second fan system are controlled according to the physical property information, the different working modes are adjusted to adapt to different oil smoke conditions, the good adaptation effect of the smoke exhaust power mechanism to the different oil smoke conditions is improved, and the smoke exhaust power mechanism can well absorb oil smoke under the different oil smoke conditions all the time. The control method is used for the smoke exhaust power mechanism or the oil smoke treatment device, can achieve better adaptation to different oil smoke conditions, and can always achieve a better absorption effect on oil smoke under different oil smoke conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a smoke exhaust power mechanism, a fume treatment device and a control method. Background Art

[0002] The range hood has become one of the indispensable kitchen appliances in modern families. The main function of the range hood is to remove the fumes during cooking, thereby maintaining a good environment in the kitchen. The existing range hood includes a shell and a smoke exhaust power mechanism, which is arranged inside the shell. When the range hood is in use, the smoke exhaust power mechanism works, so that a negative pressure area is formed in a certain space above the stove, and the indoor fumes are sucked into the range hood, and the filtered gas is subsequently discharged to the outside through a pipe.

[0003] Currently, most range hoods on the market use axial flow fans as smoke exhaust power mechanisms. Axial flow fans can be designed to be more compact, which is particularly beneficial in kitchen environments with limited space. It allows the product to be more compact while providing more flexible installation and appearance design options.

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

[0005] Therefore, it is urgent to design a new smoke exhaust power mechanism, oil fume treatment device and control method to improve the problem that the range hood has poor adaptability to different oil fume conditions and cannot always achieve good absorption of oil fume under different oil fume conditions. Summary of the invention

[0006] The first object of the present invention is to provide a smoke exhaust power mechanism that can achieve better adaptation to different oil smoke conditions and can always achieve better absorption effect of oil smoke under different oil smoke conditions.

[0007] To achieve this object, the present invention adopts the following technical solutions:

[0008] A smoke exhaust power mechanism, comprising:

[0009] First fan system;

[0010] The second fan system is arranged in the vertical direction with the first fan system;

[0011] A fume physical property detection component configured to detect physical property information of the fume; and

[0012] The controller, the first fan system, the second fan system and the oil fume physical property detection component are respectively connected to the controller for communication, and the controller controls the working modes of the first fan system and the second fan system according to the physical 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 arranged at the smoke inlet of the oil fume treatment device, and 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 connected to the controller in communication and is disposed at the outlet of the oil fume treatment device. The 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 driving assembly, which is configured to adjust the spacing between the first fan system and the second fan system in the up-down direction.

[0015] As an optional solution, the first fan system includes a first blade assembly, including a plurality of first blades arranged along a first rotation direction M; the second fan system includes a second blade assembly, the second blade assembly is coaxially arranged with the first blade assembly, and the second blade assembly 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 fan system further includes a first sleeve, which is sleeved on the outer periphery of the first blade assembly; and / or

[0017] The first fan system further includes a first muffler cover, which is disposed around the outer periphery of the plurality of first blades and is fixedly connected to the first blades; and / or

[0018] The second fan system further includes a second sleeve, which is sleeved on the outer periphery of the second blade assembly; and / or

[0019] The second fan system further includes a second muffler cover, which is disposed around the outer periphery of the plurality of second blades and is fixedly connected to the second blades; and / or

[0020] The plurality of first blades include first long blades and first short blades, the first long blades and the first short blades are alternately arranged along the circumference of the first blade assembly, and a first dimension L1 of the first long blade along the radial direction of the first blade assembly is greater than a 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 second long blades and second short blades, which are alternately arranged along the circumference of the second blade assembly, and a third radial dimension L3 of the second long blade along the second blade assembly is greater than a fourth radial dimension L4 of the second short blade along the second blade assembly.

[0022] The second object of the present invention is to provide an oil fume treatment device that can achieve better adaptation to different oil fume conditions and can always achieve better absorption effect on oil fume under different oil fume conditions.

[0023] To achieve this object, the present invention adopts the following technical solutions:

[0024] A fume treatment device includes a shell with a smoke inlet opened on the shell. The fume treatment device also includes a smoke exhaust power mechanism as above, which is arranged in the shell. The smoke inlet, the second fan system and the first fan system are arranged in sequence along the flow direction of the oil fume.

[0025] The third object of the present invention is to provide a control method that can achieve better adaptation to different oil fume conditions and can always achieve better absorption effect of oil fume under different oil fume conditions.

[0026] To achieve this object, the present invention adopts the following technical solutions:

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

[0028] Obtaining physical property information of oil smoke; and

[0029] The operating modes of the first fan system and the second fan system are controlled according to the physical property information.

[0030] As an optional solution, the physical property information of oil smoke includes:

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

[0032] The 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 step of controlling the working modes of the first fan system and the second fan system according to the physical property information includes:

[0034] The first adjustment method: according to the first oil fume physical property information P 检测1 , adjusting the speed of the second fan system; and / or

[0035] Second adjustment method: According to the second oil fume physical property information P 检测2, adjusting the distance L between the first fan system and the second fan system in the up-down direction; and / or

[0036] The third adjustment method: according to 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: the first adjustment method, the second adjustment method and the third adjustment method.

[0038] As an optional solution, according to the first oil fume physical property information P 检测1 , the step of adjusting the rotation speed of the second fan system comprises:

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

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

[0041] The first oil smoke physical property information P 检测1 and the first oil smoke physical property preset value P 预设1 Make comparisons;

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

[0043] If P 检测1 <P 预设1 , return to the step of controlling the second fan system to operate at the first speed V1.

[0044] As an optional solution, the step of adjusting the first rotation speed V1 to increase then includes:

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

[0046] The second oil smoke physical property information P 检测2 and the second preset value of oil smoke physical property P 预设2 For comparison:

[0047] If P 检测2 ≥P 预设2 , adjusting the distance L between the first fan system and the second fan system in the up-down direction to increase, and controlling the first fan system to operate at the second speed V2;

[0048] If P 检测2 <P 预设2 , control the first fan system to operate at a third speed V3, wherein V2>V3.

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

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

[0051] The second oil smoke physical property information P 检测2 and the third preset value of oil smoke physical property P 预设3 For comparison:

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

[0053] If P 检测2 <P 预设3 , return to the step of controlling the second fan system to operate at the first speed V1.

[0054] Beneficial effects of the present invention:

[0055] The smoke exhaust power mechanism provided by the present invention includes a first fan system, a second fan system, an oil fume physical property detection component and a controller. The second fan system and the first fan system are arranged in the up and down direction. The oil fume physical property detection component is used to detect the physical property information of the oil fume. The first fan system, the second fan system and the oil fume physical property detection component are respectively communicated and connected with the controller. The controller controls the working modes of the first fan system and the second fan system according to the physical property information and adjusts different working modes to adapt to different oil fume conditions, thereby improving the adaptation effect of the smoke exhaust power mechanism to different oil fume conditions. The smoke exhaust power mechanism can always absorb the oil fume in different oil fume conditions better.

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

[0057] The control method provided by the present invention is used for the above smoke exhaust power mechanism or the above oil fume treatment device, which can achieve better adaptation to different oil fume conditions and can always achieve better absorption effect of oil fume under different oil fume conditions. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0059] Figure 2 is a working principle diagram of the oil fume treatment device provided in the first embodiment of the present invention;

[0060] Figure 3is a schematic structural diagram of a drive assembly and a portion of a first fan system provided in Embodiment 1 of the present invention;

[0061] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

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

[0063] Figure 6 This is a fume movement analysis diagram provided by the first embodiment of the present invention;

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

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

[0066] Fig. 9 is a flow chart of a control method provided by Embodiment 2 of the present invention;

[0067] Fig.10 It is a flow chart of the control method provided in the third embodiment of the present invention.

[0068] In the figure:

[0069] 1000. Fume treatment device;

[0070] 100, smoke exhaust power mechanism; 200, housing; 210, main chassis; 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 muffler; 141. First muffler body; 142. First noise reduction hole; 15. First mounting frame;

[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 muffler; 241. Second muffler body; 242. Second noise reduction hole; 25. Second mounting bracket; 26. Third mounting bracket;

[0073] 30. Oil fume physical property detection component; 31. First oil fume physical property detection mechanism; 32. Second oil fume physical property detection mechanism;

[0074] 40. Controller;

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

[0076] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and implementation methods. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, rather than all of them.

[0077] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0078] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0079] In the description of the embodiments of the present disclosure, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0080] Embodiment 1

[0081] like Figure 1As shown, the embodiment of the present disclosure provides an oil fume treatment device 1000, which 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 fume during cooking, thereby maintaining a good environment in the kitchen.

[0082] like Figure 1 As shown, the oil fume treatment device 1000 can be all types of devices with oil fume treatment function, such as a ceiling-mounted range hood, a side-suction range hood, a top-suction range hood, etc. All types of devices with oil fume treatment function are within the protection scope of the embodiments of the present disclosure. The embodiments of the present disclosure take the top-suction range hood as an example to illustrate the structure of the oil fume treatment device 1000.

[0083] like Figure 1 As shown, the oil fume treatment device 1000 includes a smoke exhaust power mechanism 100 and a shell 200, wherein the shell 200 includes a main box 210 and a smoke hood 220 which are connected to each other, and the smoke hood 220 is provided with a smoke inlet 2201, and the smoke exhaust power mechanism 100 is arranged in the main box 210. When the smoke exhaust power mechanism 100 is working, a negative pressure is formed inside the main box 210. Under the action of the negative pressure, the oil fume outside the oil fume treatment device 1000 passes through the smoke inlet 2201, and then passes through the smoke hood 220 and the main box 210 in turn. After the oil fume is filtered by the smoke exhaust power mechanism 100, a clean filtered gas is formed, and the clean filtered gas is finally discharged to the outside from the outlet 2101 of the main box 210.

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

[0085] Currently, most of the oil fume treatment devices on the market use axial flow fans as the smoke exhaust power mechanism. Axial flow fans can be designed to be more compact, which is particularly beneficial in kitchen environments with limited space. It allows the product to be more miniaturized while providing more flexible installation and appearance design options.

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

[0087] To solve the above problems, Figure 1 and Figure 2As shown, the smoke exhaust power mechanism 100 includes a first fan system 10, a second fan system 20, an oil fume physical property detection component 30 and a controller 40. The second fan system 20 and the first fan system 10 are arranged in the up and down direction. The oil fume physical property detection component 30 is used to detect the physical property information of the oil fume. The first fan system 10, the second fan system 20 and the oil fume physical property detection component 30 are respectively communicated with the controller 40. The controller 40 controls the working modes of the first fan system 10 and the second fan system 20 according to the physical property information. By adjusting different working modes to adapt to different oil fume conditions, the smoke exhaust power mechanism 100 is better adapted to different oil fume conditions. The smoke exhaust power mechanism 100 can always absorb the oil fume in different oil fume conditions better.

[0088] Specifically, the physical property information of oil smoke can be at least one of the concentration information, flow rate information, flow rate information, temperature information, etc. of the oil smoke, wherein the greater the concentration information, flow rate information, flow rate information, temperature information, etc., the greater the oil smoke concentration. Adaptively, the oil smoke physical property detection component 30 can be an oil smoke concentration detection mechanism, an oil smoke flow rate detection mechanism, an oil smoke flow rate detection mechanism, a temperature detection mechanism, etc. Since the aforementioned mechanisms are relatively common structures in the art, the specific structures corresponding to the aforementioned mechanisms are not further described in the embodiments of the present disclosure, and all types of smoke concentration detection mechanisms, oil smoke flow rate detection mechanisms, oil smoke flow rate detection mechanisms, and temperature detection mechanisms are within the protection scope of the embodiments of the present disclosure.

[0089] like Figure 1 and Figure 2 As shown, the oil fume property detection assembly 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 disposed 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 of the smoke inlet 2201. 检测1 The second oil fume property detection mechanism 32 is connected to the controller 40 for communication and is disposed 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 , by the first oil smoke physical property information P 检测1 and the second oil smoke physical property information P 检测2 The comprehensive detection can more realistically reflect the current complex and changeable oil fume situation. The controller 40 can control the working modes of the first fan system 10 and the second fan system 20 according to different oil fume situations, so as to achieve accurate matching of the corresponding working modes with the current oil fume situation, so that the exhaust power mechanism 100 can match different oil fume situations more accurately, and the exhaust power mechanism 100 can better absorb the oil fume under different oil fume situations.

[0090] Specifically, if Figure 2 As shown, in the controller 40, corresponding working modes of the first fan system 10 and the second fan system 20 can be set for different oil smoke conditions. When the controller 40 detects a specific oil smoke condition, the controller 40 can control the first fan system 10 and the second fan system 20 to perform a corresponding working mode, which can achieve the following Figure 1 The smoke exhaust power mechanism 100 shown can quickly adapt to the corresponding oil fume conditions, so that the smoke exhaust power mechanism 100 can quickly and accurately match different oil fume conditions. The smoke exhaust power mechanism 100 can achieve a better absorption effect on the oil fume in different oil fume conditions.

[0091] like Figure 1 and Figure 2 As shown, the controller 40 controls the working modes of the first fan system 10 and the second fan system 20 according to the physical property information, which may include but are not limited to at least one of the first adjustment method, the second adjustment method and the third adjustment method. Through the adjustment of the arrangement and combination of multiple adjustment methods, the smoke exhaust power mechanism 100 can quickly and accurately match more different oil fume conditions, and the smoke exhaust power mechanism 100 can better absorb the oil fume in more different oil fume conditions.

[0092] Exemplarily, the first adjustment method is: according to 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: according to the second oil fume physical property information P 检测2 , adjusting the distance L between the first fan system 10 and the second fan system 20 in the vertical direction; the third adjustment method is: according to the second oil fume physical property information P 检测2 , adjusting the rotation speed of the first fan system 10. Through the arrangement and combination of the first adjustment method, the second adjustment method and the third adjustment method and the adjustment of different adjustment orders, more working modes of the first fan system 10 and the second fan system 20 can be combined, and more working modes can achieve accurate matching for more different oil smoke conditions.

[0093] It should be noted that the working modes of the first fan system 10 and the second fan system 20 may also include other types of adjustment methods. A plurality of permutations and combinations of quantity adjustment methods to form the required working modes of the first fan system 10 and the second fan system 20 are all within the protection scope of the embodiments of the present disclosure.

[0094] Exemplarily, the operating mode of the controller 40 controlling the first fan system 10 and the second fan system 20 according to the physical property information may also include but is not limited to a fourth adjustment method, a fifth adjustment method, etc., wherein the fourth adjustment method is: controlling the direction of the first fan system 10 according to the physical property information; the fifth adjustment method is: controlling the direction of the second fan system 20 according to the physical property information, etc.

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

[0096] For example, Figure 1 , Figure 3 and Figure 4 As shown, the drive assembly 50 includes a rotary drive motor 51, a worm 52, a sliding gear structure 53 and a guide mechanism 54. The worm 52 is fixedly connected to the output end of the rotary drive motor 51, and the worm 52 extends in the up-down direction. The sliding gear structure 53 is fixedly connected to the first fan system 10. The sliding gear structure 53 is arranged on one side of the worm 52 and is spirally matched with the worm 52. The guide mechanism 54 is used to make the corresponding first fan system 10 move in the up-down direction. When the rotary drive motor 51 is working, the rotary drive motor 51 drives the worm 52 to rotate, and under the guiding action of the guide mechanism 54, the sliding gear structure 53 can move in the up-down direction, and the sliding gear structure 53 can drive the first fan system 10 to move in the up-down direction. The cooperation between the sliding gear structure 53 and the worm 52 has high transmission accuracy. By applying the drive assembly 50 of this structure, the precise adjustment of the position of the first fan system 10 in the up-down direction can be achieved.

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

[0098] like Figure 1 , Figure 3 , Figure 4 and Figure 7As shown, the first fan system 10 is provided with a guide groove 133, which extends in the up-down direction, and a corresponding guide mechanism 54 is provided in the guide groove 133, and the guide mechanism 54 can slide along the guide groove 133. Through the cooperation between the guide groove 133 and the guide mechanism 54, the first fan system 10 can be moved in the up-down direction. In addition, at least two guide grooves 133 can be provided, and the provision of two guide grooves 133 can ensure that the first fan system 10 moves more stably in the up-down direction, and can also prevent the first fan system 10 from rotating during the up-down movement.

[0099] Of course, in other embodiments, the sliding tooth structure may be fixedly connected to the second fan system to achieve the above-mentioned effect.

[0100] Of course, in other embodiments, the first fan system and the second fan system can be respectively provided with a corresponding drive component, and 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 up and down directions, thereby achieving a fast and accurate matching of the smoke exhaust power mechanism to different oil fume conditions, so that the smoke exhaust power mechanism can better absorb the oil fume under different oil fume conditions.

[0101] Of course, in other embodiments, the guide mechanism may also be a linear guide assembly, etc. All structures that can realize the up and down movement of the first fan system are within the protection scope of this optional embodiment.

[0102] Of course, in other embodiments, the driving assembly can also be other structures that can realize linear drive, including but not limited to linear motors, gear rack assemblies, screw nut assemblies, etc. All structures that can realize linear drive are relatively mature structures in the field and will not be elaborated in the embodiments of the present disclosure.

[0103] Existing axial flow fans can use unipolar axial flow fans. The wind pressure and air volume of unipolar axial flow fans are relatively low, and usually cannot meet the high back pressure operating environment of the oil fume treatment device. Although the wind pressure and air volume can be increased by increasing the speed of the unipolar axial flow fan, the noise problem cannot be solved. In addition, although the wind pressure can be increased by increasing the number of impellers of the axial flow fan, the presence of two-stage guide vanes will lead to more energy loss, and the vibration problem of the two-stage axial flow fan is more prominent, especially in a high resistance working environment, the vibration and noise exceeding the standard may seriously affect the stable operation of the oil fume treatment device.

[0104] To solve the above problems, Figure 1 to Figure 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, and the first blade assembly 11 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, and 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 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 oil smoke enters the second blade 211 at u1, the second blade 211 rotates and does work, and the oil smoke is deflected while being expanded. The absolute velocity u2 of the oil smoke discharged from the downstream of the second blade 211 includes a rotational velocity component Δu1, and the first blade 111, like the second blade 211, will produce a reverse deflection Δu2 on the inflowing oil smoke, and the two deflection amounts are equal, that is, Δu1=Δu2, and the oil smoke still maintains the axial direction when flowing out of the first blade 111, that is, u1=u3, so that in the absence of guide vanes, the exhaust power mechanism 100 of the disclosed embodiment can recover rotational kinetic energy and reduce the loss of total pressure.

[0105] Compared with the existing two-stage axial flow fan, the smoke exhaust power mechanism 100 of the embodiment of the present disclosure does not need to be additionally equipped with guide vanes, so that the structure of the smoke exhaust power mechanism 100 is compact and the cost is lower. In addition, the first blade assembly 11 and the second blade assembly 21, which are arranged in opposite directions and rotated in opposite directions, cooperate with each other to avoid the airflow friction loss on the existing guide vanes, reduce the internal resistance loss of the smoke exhaust power mechanism 100, and improve the working efficiency of the smoke exhaust power mechanism 100. The smoke exhaust power mechanism 100 of the embodiment of the present disclosure has low vibration and low noise in a high-resistance working environment, thereby realizing the silent use of the oil fume treatment device 1000, which can effectively improve the user's experience.

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

[0107] Combination Figure 1 and Figure 3 The structure of the first fan system 10 is described as follows: Figure 1 and Figure 3As shown, the first blade assembly 11 also includes a first connecting shaft 112, and a plurality of first blades 111 are arranged around the periphery of the first connecting shaft 112 and are fixedly connected to the first connecting shaft 112. The first fan system 10 also includes a first motor 12, and the first connecting shaft 112 is coaxially fixed with the first motor 12. The first motor 12 drives the first connecting shaft 112 to rotate, thereby realizing synchronous rotation of a plurality of first blades 111. The structure of the first fan system 10 is simple, and it is convenient to realize 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 the first connecting shaft 112 and the first blades 111 can be integrally formed by injection molding, casting or other processes.

[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 setting of the first sleeve 13 can achieve a better smoke collection effect for the oil smoke, and can guide a large amount of oil smoke to the first blade assembly 11, thereby improving the oil fume absorption 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 frame 15, wherein the first motor 12 and the first sleeve 13 are fixed via the first mounting frame 15. By setting the first mounting frame 15, a stable connection between the first motor 12 and the first sleeve 13 can be achieved, thereby ensuring stable and normal use of the first motor 12.

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

[0111] like Figure 1 and Figure 7 As shown, along the flow direction of the oil fume, the cross-sectional area of ​​the first sleeve 13 tends to decrease, so that the first sleeve 13 can better collect the oil fume and improve the oil fume absorption effect of the oil fume treatment device 1000.

[0112] Specifically, if Figure 7 As shown, the first sleeve 13 includes a first section 131 and a second section 132 that are connected, wherein the first section 131 and the second section 132 are arranged in sequence along the flow direction of the oil smoke. The cross-sectional area of ​​the first section 131 along the flow direction of the oil smoke gradually decreases. The first section 131 is a guide section, and the first section 131 can guide the oil smoke into the first blade assembly 11. The cross-sectional area of ​​the second section 132 along the flow direction of the oil smoke does not change. The second section 132 is used to gather the oil smoke and guide the filtered gas to the first blade assembly 11. Figure 1The outlet 2101 of the oil fume treatment device 1000 is shown.

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

[0114] Specifically, if Figure 1 and Figure 3 As shown, the first muffler 14 includes a first muffler body 141 and a first noise reduction hole 142 opened thereon. The first noise reduction hole 142 can achieve better absorption of the noise generated during the operation of the first blade assembly 11. The first muffler 14 of this structure has a simple structure and low cost. In addition, the first muffler 14 can select noise reduction materials such as damping sound insulation felt, sound insulation paint, shock-absorbing sound insulation board, foam aluminum material, etc. All materials that can achieve noise absorption or reflection are within the protection scope of the embodiments of the present disclosure.

[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, and the first long blades 1111 and the first short blades 1112 are alternately arranged along the circumference of the first blade assembly 11, and the first dimension L1 of the first long blades 1111 along the radial direction of the first blade assembly 11 is greater than the second dimension L2 of the first short blades 1112 along the radial direction of the first blade assembly 11. By alternately arranging the first long blades 1111 and the first short blades 1112, the formation of vortex in the first sleeve 13 can be suppressed, the formation of low-speed zone inside the first sleeve 13 can be avoided, the friction loss between the oil smoke in the first sleeve 13 and the first blades 111 can be reduced, and the oil smoke in the first sleeve 13 can be ensured to always have good kinetic energy, so that the oil smoke 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, the flow space near the root of the first short blade 1112 can be released. On the other hand, the space at the tip of the first short blade 1112 can be used to improve the working 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 have a twisting degree, so that the working efficiency of the smoke exhaust power mechanism 100 is greatly improved, the first blade assembly 11 drives the flow of oil smoke to increase, improves the high air volume and air pressure of the smoke exhaust power mechanism 100, and improves the oil smoke absorption effect of the smoke exhaust power mechanism 100. Figure 3 As shown, the ratio of the twisting degree of the first short blade 1112 to the twisting degree 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 wind pressure of the smoke exhaust power mechanism 100, and further improving the oil fume absorption effect of the smoke exhaust power mechanism 100. Among them, the ratio of the twisting degree of the first short blade 1112 to the twisting degree of the first long blade 1111 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 the embodiments of the present disclosure.

[0118] Combination Figure 1 and Figure 5 The structure of the second fan system 20 is described as follows. Figure 1 and Figure 5 As shown, the second blade assembly 21 also includes a second connecting shaft 212, and a plurality of second blades 211 are arranged around the outer periphery of the second connecting shaft 212 and are fixedly connected to the second connecting shaft 212. The second fan system 20 also includes a second motor 22, and the second connecting shaft 212 is coaxially fixed with the second motor 22. The second motor 22 drives the second connecting shaft 212 to rotate, so that the synchronous rotation of the plurality of second blades 211 can be achieved. The structure is simple, and it is convenient to realize the 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 the second connecting shaft 212 and the second blades 211 can be integrally formed by injection molding, casting or other processes.

[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 setting of the second sleeve 23 can achieve a better smoke collection effect for the oil smoke, and can guide a large amount of oil smoke to the second blade assembly 21, thereby improving the oil 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 frame 25, wherein the second motor 22 and the second sleeve 23 are fixed via the second mounting frame 25. By setting the second mounting frame 25, a stable connection between the second motor 22 and the second sleeve 23 can be achieved, thereby ensuring 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 box 210 through the third mounting frame 26, thereby achieving a stable connection between the second sleeve 23 and the main box 210.

[0122] like Figure 1 and Figure 8 As shown, along the flow direction of the oil fume, the cross-sectional area of ​​the second sleeve 23 tends to decrease. The second sleeve 23 can collect the oil fume to a better effect, thereby improving the oil fume absorption effect of the oil fume treatment device 1000.

[0123] Specifically, if 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 which are connected to each other, wherein the third section 231, the fourth section 232, the fifth section 233 and the sixth section 234 are arranged in sequence along the flow direction of the oil smoke. Figure 8 As shown, the third section 231 is a bell-shaped contraction, and the third section 231 is used to gather airflow. The fourth section 232 is a guide section, and the fourth section 232 guides the airflow into the second blade assembly 21. The fifth section 233 is a straight section, and is used to gather airflow and guide it to the first sleeve 13. The sixth section 234 is a contraction section, and the sixth section 234 can accelerate the oil smoke 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 smoke can also enter the first fan system 10 through the gap between the first sleeve 13 and the second sleeve 23, thereby increasing the oil smoke of the second fan system 20 as much as possible and improving the oil smoke absorption effect of the smoke 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, which is arranged around the outer periphery of the plurality of second blades 211 and fixedly connected to the second blades 211. Due to the arrangement of the second silencer 24, the noise caused by the second blade assembly 21 during operation can be effectively reduced.

[0126] Specifically, if Figure 1 as well as Figure 5As shown, the second muffler 24 includes a second muffler body 241 and a second noise reduction hole 242 provided thereon. By setting the second noise reduction hole 242, it is possible to achieve better absorption of the noise generated during the operation of the second blade assembly 21. The second muffler 24 of this structure has a simple structure and low cost. In addition, the second muffler 24 can be made of noise reduction materials such as damping sound insulation felt, sound insulation paint, shock-absorbing sound insulation board, foam aluminum material, etc. All materials that can achieve noise absorption or reflection are within the protection scope of the embodiments of the present disclosure.

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

[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, the flow space near the root of the second short blade 2112 can be released. On the other hand, the space at the tip of the second short blade 2112 can be used to improve the working 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 have a twisting degree, so that the working efficiency of the smoke exhaust power mechanism 100 is greatly improved, and the second blade assembly 21 drives the flow of oil smoke to increase, improves the high air volume and air pressure of the smoke exhaust power mechanism 100, and improves the oil smoke absorption effect of the smoke exhaust power mechanism 100. Figure 5As shown, the ratio of the twisting degree of the second short blade 2112 to the twisting degree 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 wind pressure of the smoke exhaust power mechanism 100, and further improving the oil fume absorption effect of the smoke exhaust power mechanism 100. Among them, the ratio of the twisting degree of the second short blade 2112 to the twisting degree 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 the embodiments of the present disclosure.

[0130] like Figure 3 and Figure 5 As shown, the number of the first blades 111 and the number of the second blades 211 are mutually prime, further reducing Figure 1 Discrete noise of the smoke exhaust power mechanism 100 is shown.

[0131] Embodiment 2

[0132] The present disclosure discloses a control method for controlling the smoke exhaust power mechanism 100 or the oil smoke treatment device 1000 of the first embodiment, such as Fig. 9 As shown, the control method includes:

[0133] Obtaining physical property information of oil smoke; and

[0134] The operating modes of the first fan system and the second fan system are controlled according to the physical property information.

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

[0136] By adjusting different working modes to adapt to different oil smoke conditions, Figure 1 The smoke exhaust power mechanism 100 shown has a good adaptability to different oil smoke conditions, and the smoke exhaust power mechanism 100 can always absorb the oil smoke in different oil smoke conditions well.

[0137] Specifically, the physical property information of the oil fume may be at least one of the concentration information, flow rate information, flow rate information, temperature information, etc. of the oil fume, wherein the greater the concentration information, flow rate information, flow rate information, temperature information, etc., the greater the oil fume concentration. It should be noted that all physical property information parameters that can reflect the oil fume situation are within the protection scope of the embodiments of the present disclosure.

[0138] It should be noted that this can be done by Figure 1The oil fume physical property detection component 30 shown is used to obtain the physical property information of the oil fume. 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 relatively common structures in the field, the specific structures corresponding to the aforementioned mechanisms are no longer elaborated in the embodiments of the present disclosure, and 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 the embodiments of the present disclosure.

[0139] It should be noted that the oil smoke referred to in the embodiments of the present disclosure does not only refer to the oil smoke Figure 1 The oil fume at the smoke inlet 2201 shown in the figure, the oil fume referred to in the embodiment of the present disclosure includes but is not limited to the environmental oil fume in the kitchen, the oil fume at the smoke inlet 2201, the oil fume inside the oil fume treatment device 1000, the oil fume at the outlet 2101, etc. All physical property information of the oil fume that can directly or indirectly reflect the working condition of the oil fume treatment device 1000 is within the protection scope of the embodiment of the present disclosure.

[0140] Combination Figure 1 and Figure 2 The structure of the exhaust power mechanism 100 further illustrates the physical property information of the oil smoke. The physical property information of the oil smoke in the embodiment of the present disclosure includes but is not limited to the first oil smoke physical property information P 检测1 and the second oil smoke physical property information P 检测2 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 smoke exhaust power mechanism 100 or the oil fume treatment device 1000 to different oil fume conditions.

[0141] When there are two types of oil fume physical property information, the controller 40 generates the first oil fume physical property information P 检测1 and the second oil smoke physical property information P 检测2 The comprehensive detection can more realistically reflect the current complex and changeable oil fume situation. The controller 40 can control the working modes of the first fan system 10 and the second fan system 20 according to different oil fume situations, so as to achieve accurate matching of the corresponding working modes with the current oil fume situation, so that the exhaust power mechanism 100 can match different oil fume situations more accurately, and the exhaust power mechanism 100 can better absorb the oil fume under different oil fume situations.

[0142] Specifically, if Figure 2As shown, in the controller 40, corresponding working modes of the first fan system 10 and the second fan system 20 can be set for different oil smoke conditions. When the controller 40 detects a specific oil smoke condition, the controller 40 can control the first fan system 10 and the second fan system 20 to perform a corresponding working mode, which can achieve the following Figure 1 The smoke exhaust power mechanism 100 shown can quickly adapt to the corresponding oil fume conditions, so that the smoke exhaust power mechanism 100 can quickly and accurately match different oil fume conditions. The smoke exhaust power mechanism 100 can achieve a better absorption effect on the oil fume in different oil fume conditions.

[0143] According to the physical property information, the working modes of the first fan system and the second fan system can be controlled, including but not limited to at least one of the first adjustment mode, the second adjustment mode and the third adjustment mode. By adjusting the arrangement and combination of multiple adjustment modes, it can be achieved. Figure 1 The exhaust power mechanism 100 can quickly and accurately match more different oil smoke conditions. Figure 1 The middle smoke exhaust power mechanism 100 can achieve a better absorption effect on the oil smoke under more different oil smoke conditions.

[0144] For example, Figure 1 As shown, the first adjustment method is: according to 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: according to the first oil fume physical property information P 检测1 and the second oil smoke physical property information P 检测2 , adjusting the distance L between the first fan system 10 and the second fan system 20 in the vertical direction; the third adjustment method is: according to the first oil fume physical property information P 检测1 and the second oil smoke physical property information P 检测2 , adjusting the rotation speed of the first fan system 10. Through the arrangement and combination of the first adjustment method, the second adjustment method and the third adjustment method and the adjustment of different adjustment orders, more working modes of the first fan system 10 and the second fan system 20 can be combined, and more working modes can achieve accurate matching for more different oil smoke conditions.

[0145] It should be noted that the working modes of the first fan system 10 and the second fan system 20 may also include other types of adjustment methods. A plurality of permutations and combinations of quantity adjustment methods to form the required working modes of the first fan system 10 and the second fan system 20 are all within the protection scope of the embodiments of the present disclosure.

[0146] Exemplarily, based on the physical property information, the working modes of controlling the first fan system and the second fan system may also include but are not limited to a fourth adjustment method, a fifth adjustment method, etc., wherein the fourth adjustment method is: controlling the direction of the first fan system 10 according to the physical property information; the fifth adjustment method is: controlling the direction of the second fan system 20 according to the physical property information, etc.

[0147] As an optional solution, 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, such as Figure 1 As shown, since the second fan system 20 is closest to the oil fume with the highest concentration, the working mode of the second fan system 20 has a greater impact on the oil fume absorption, and the working mode of the second fan system 20 has an impact on the oil fume absorption of 60%. Therefore, according to the first oil fume physical property information P 检测1 , adjusting the rotation speed of the second fan system 20 can achieve rapid adjustment of the working modes of the first fan system and the second fan system. If the working mode of the smoke exhaust power mechanism 100 is adjusted by the first adjustment method, the oil fume treatment device 1000 can achieve a better oil fume absorption effect, and no other adjustments are required, and rapid adjustment of the working mode of the smoke exhaust power mechanism 100 can be achieved. The second adjustment method has a slightly weaker effect on oil fume absorption, and the third adjustment method has an even weaker effect on oil fume absorption. Therefore, by adjusting the first adjustment method, the second adjustment method, and the third adjustment method in sequence, rapid and accurate adjustment of the working mode of the smoke exhaust power mechanism 100 can be achieved.

[0148] Embodiment 3

[0149] The present disclosure provides a control method, which is a further refinement of the control method in the third embodiment. Fig.10 As shown, the control method includes:

[0150] S11: Obtaining the first oil smoke physical property information P 检测1 ;

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

[0152] S13: The first oil smoke physical property information P 检测1 and the first oil smoke physical property preset value P 预设1 For comparison: If P 检测1 ≥P 预设1 , then proceed to S14; if P 检测1 <P 预设1 , return to S12;

[0153] S14: adjusting the first rotation speed V1 to increase;

[0154] It should be noted that the first oil fume physical property preset value P 预设1 It can be a point value or a range. When the first oil fume physical property preset value P 预设1 When the speed of the second fan system is within the range of , the adjustment of the speed 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 means that at this stage, if the second fan system is still running at the current first speed V1, Figure 1 The oil fume at the smoke inlet 2201 of the oil fume treatment device 1000 shown cannot be absorbed well, so it is necessary to increase the first rotation speed V1, thereby achieving rapid and large-scale absorption of the oil fume at the smoke inlet 2201 of the oil fume treatment device 1000, and achieving a rapid decrease in the concentration of the oil fume at the smoke inlet 2201 of the oil fume treatment device 1000.

[0156] Exemplarily, the first rotation speed V1 may be adjusted according to the following formula:

[0157] V1=n1*△V1+V 10 ;

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

[0159] Of course, the first rotational speed V1 may 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 , which means that the second fan system operates at the current first speed V1, which can ensure the moderate oil smoke concentration at the smoke inlet 2201, that is, it means that the current second fan system 20 operates at the first speed V1 which is in line with the current oil smoke situation, so the second fan system 20 continues to operate at the current first speed V1.

[0161] S21: Obtaining the second oil smoke physical property information P 检测2 ;

[0162] S22: The second oil smoke physical property information P 检测2 and the second preset value of oil smoke physical property P 预设2 For comparison: If P 检测2 ≥P 预设2 , proceed to S23; if P 检测2 <P 预设2 , proceed to S24.

[0163] S23: adjusting the distance L between the first fan system and the second fan system in the up-down direction to increase, and controlling the first fan system to operate 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. 检测2 When the speed of the first fan system is within the range of , the adjustment of the speed 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 , indicating that at this time the oil fume concentration between the first fan system and the second fan system is relatively large, and the distance L between the first fan system and the second fan system in the up-down direction is relatively close, the distance L between the first fan system and the second fan system in the up-down direction is increased, and the first fan system is rotated at a larger second speed V2 to improve the oil fume absorption effect of the smoke exhaust power mechanism.

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

[0167] If P 检测2 <P 预设2 , indicating that the oil fume concentration between the first fan system and the second fan system is normal at this time, and the distance L between the first fan system and the second fan system along the up and down direction is normal. The distance L between the first fan system and the second fan system along the up and down direction is maintained at the current state, and the first fan system is rotated at a small third speed V3, which ensures the normal absorption of oil fume and achieves the energy-saving use effect of the oil fume treatment device.

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

[0169] S32: The second oil smoke physical property information P 检测2 and the third preset value of oil smoke physical property P 预设3 For comparison: If P 检测2 ≥P 预设3 , proceed to S33; if P 检测2 <P 预设3 , return to S12;

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

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

[0172] If P 检测2 ≥P 预设2 , indicating that at this time, the oil fume concentration between the first fan system and the second fan system in the up-down direction is relatively large, and the second speed V2 is adjusted to increase to improve the oil fume absorption effect of the smoke exhaust power mechanism.

[0173] Exemplarily, the third rotation speed V3 may be adjusted according to the following formula:

[0174] V2=n2*△V2+V 20 ;

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

[0176] Of course, the second rotational speed V2 may 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 , indicating that the oil fume concentration between the first fan system and the second fan system is normal at this time, and the first fan system rotates at the current second speed V2, which can ensure the normal absorption of oil fume while achieving the energy-saving use effect of the oil fume treatment device.

[0178] In addition, between S11 and S12, the following steps are also included: 检测1 , control the oil fume treatment device to operate at different gears, so as to ensure that the oil fume treatment device matches different oil fume conditions. Exemplarily, the gears of the oil fume treatment device include: weak gear, strong gear, stir-fry gear, etc.

[0179] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A smoke exhaust power mechanism, characterized in that: include: A first fan system (10); A second fan system (20) is arranged in a vertical direction with respect to the first fan system (10); A fume physical property detection component (30) configured to detect physical property information of the fume; and A controller (40), wherein the first fan system (10), the second fan system (20) and the oil fume physical property detection component (30) are respectively connected to the controller (40) for communication, and the controller (40) controls the working modes of the first fan system (10) and the second fan system (20) according to the physical property information.

2. The smoke exhaust power mechanism according to claim 1, characterized in that: The oil fume physical property detection component (30) comprises a first oil fume physical property detection mechanism (31) and / or a second oil fume physical property detection mechanism (32); the first oil fume physical property detection mechanism (31) is communicatively connected to the controller (40) and is arranged at a smoke inlet (2201) of the oil fume treatment device; the first oil fume physical property detection mechanism (31) is configured to detect first oil fume physical 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 disposed 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 ; and / or The smoke exhaust power mechanism further comprises a driving assembly (50), wherein the driving assembly (50) is configured to adjust the distance between the first fan system (10) and the second fan system (20) in the up-down direction.

3. The smoke exhaust power mechanism according to claim 1, characterized in that: The first fan system (10) comprises a first blade assembly (11), comprising a plurality of first blades (111) arranged along a first rotation direction M; the second fan system (20) comprises a second blade assembly (21), the second blade assembly (21) is coaxially arranged with the first blade assembly (11), and the second blade assembly (21) comprises 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 a first rotation direction Q of the first blade assembly (11) is opposite to a second rotation direction T of the second blade assembly (21).

4. The smoke exhaust power mechanism according to claim 3, characterized in that: The first fan system (10) further comprises a first sleeve (13), wherein the first sleeve (13) is sleeved on the outer periphery of the first blade assembly (11); and / or The first fan system (10) further comprises a first muffler cover (14), wherein the first muffler cover (14) is arranged around the outer periphery of the plurality of first blades (111) and is fixedly connected to the first blades (111); and / or The second fan system (20) further comprises a second sleeve (23), wherein the second sleeve (23) is sleeved on the outer periphery of the second blade assembly (21); and / or The second fan system (20) further comprises a second muffler cover (24), the second muffler cover (24) being arranged around the outer circumference of the plurality of second blades (211) and being fixedly connected to the second blades (211); and / or 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 alternately arranged along the circumference of the first blade assembly (11), and a first dimension L1 of the first long blade (1111) along the radial direction of the first blade assembly (11) is greater than a second dimension L2 of the first short blade (1112) along the radial direction of the first blade assembly (11); and / or The plurality of second blades (211) include second long blades (2111) and second short blades (2112), the second long blades (2111) and the second short blades (2112) being alternately arranged along the circumference of the second blade assembly (21), and a third dimension L3 of the second long blades (2111) along the radial direction of the second blade assembly (21) being greater than a fourth dimension L4 of the second short blades (2112) along the radial direction of the second blade assembly (21).

5. A fume treatment device, comprising a housing (200), wherein the housing (200) is provided with a fume inlet (2201), characterized in that: The oil fume treatment device further comprises a smoke exhaust power mechanism as described in any one of claims 1 to 4, wherein the smoke exhaust power mechanism is arranged in the shell (200), and the smoke inlet (2201), the second fan system (20) and the first fan system (10) are arranged in sequence along the flow direction of the oil fume.

6. A control method, characterized in that: For use in the smoke exhaust power mechanism according to any one of claims 1 to 4 or the oil fume treatment device according to claim 5, the control method comprises: Obtaining physical property information of the oil smoke; and The operating modes of the first fan system (10) and the second fan system (20) are controlled according to the physical property information.

7. The control method according to claim 6, characterized in that: The physical property information of the oil smoke includes: First oil fume physical property information P of the smoke inlet (2201) of the oil fume treatment device 检测1 ; and / or The second oil fume physical property information P of the outlet (2101) of the oil fume treatment device 检测2 .

8. The control method according to claim 7, characterized in that: The step of controlling the working modes of the first fan system (10) and the second fan system (20) according to the physical property information comprises: The first adjustment method: according to the first oil fume physical property information P 检测1 , adjusting the rotation speed of the second fan system (20); and / or The second adjustment method: according to the second oil fume physical property information P 检测2 , adjusting the distance L between the first fan system (10) and the second fan system (20) in the up-down direction; and / or The third adjustment method: according to the second oil fume physical property information P 检测2 , adjusting the rotation speed of the first fan system (10).

9. The control method according to claim 8, 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.

10. The control method according to claim 9, characterized in that: According to the first oil smoke physical property information P 检测1 The step of adjusting the rotation speed of the second fan system (20) comprises: Obtain the first oil smoke physical property information P 检测1 ; controlling the second fan system (20) to operate at a first speed V1; The first oil smoke physical property information P 检测1 and the first oil smoke physical property preset value P 预设1 Make comparisons; If P 检测1 ≥P 预设1 , adjust the first speed V1 to increase; If P 检测1 <P 预设1 , returning to the step of controlling the second fan system (20) to operate at the first speed V1.

11. The control method according to claim 10, characterized in that: The step of adjusting the first rotation speed V1 to increase then comprises: Obtain the second oil fume physical property information P 检测2 ; The second oil smoke physical property information P 检测2 and the second preset value of oil smoke physical property P 预设2 For comparison: If P 检测2 ≥P 预设2 , adjusting the distance L between the first fan system (10) and the second fan system (20) in the up-down direction to increase, and controlling the first fan system (10) to operate at a second speed V2; If P 检测2 <P 预设2 , controlling the first fan system (10) to operate at a third speed V3, wherein V2>V3.

12. The control method according to claim 11, characterized in that: The step of controlling the first fan system (10) to operate at a second speed V2 then comprises: Obtain the second oil fume physical property information P 检测2 ; The second oil smoke physical property information P 检测2 and the third preset value of oil smoke physical property P 预设3 For comparison: If P 检测2 ≥P 预设3 , adjust the second speed V2 to increase, and return to obtain the second oil fume physical property information P 检测2 Steps; If P 检测2 <P 预设3 , returning to the step of controlling the second fan system (20) to operate at the first speed V1.

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