Hidden oil screen structure of range hood and smoke suction efficiency control method
By hiding the oil net structure and automatic cleaning system, the problems of high noise, large size and oil net clogging of the range hood are solved, and efficient smoke extraction and cleaning control under different oil fume concentrations are achieved, providing a comfortable cooking environment.
Patent Information
- Application Number
- CN202510584119.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2025-07-29
AI Technical Summary
Existing range hoods have problems such as excessive noise and volume when improving the smoke extraction effect, and the oil screen is clogged, which affects the smoke extraction effect.
The hidden oil mesh structure is adopted, and the movement of the oil mesh is controlled through detection sensors and linear motion modules, the smoke inlet area is adjusted, and a cleaning scraper is equipped to automatically clean oil and dirt to avoid blockage of the oil mesh.
It has achieved the optimization of the smoke inlet area under different oil fume concentrations, reduce noise, maintain the smoking effect, and timely clean up oil and dirt to prevent clogging and provide a comfortable cooking environment.
Smart Images
Figure CN120385105A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of range hoods, and particularly to a hidden oil net structure of a range hood and a smoking efficiency control method. Background Art
[0002] A range hood is a device that discharges oil fumes from indoors to outdoors, generally composed of a smoke collecting cavity and a box body assembly. An air inlet connected to the smoke collecting cavity is provided on the smoke collecting cavity of the range hood, and an oil net for filtering oil fumes and a baffle for controlling the opening or closing of the air inlet are installed at the air inlet. There are many factors affecting the smoking effect of the range hood, among which the air volume and the air inlet area are important factors that significantly affect the smoking effect of the range hood. At present, most researchers are committed to increasing the air volume to achieve the purpose of improving the smoking effect. However, when the air volume is increased, the noise will also increase accordingly, making it difficult to effectively improve the smoking effect of the range hood.
[0003] At the same time, the air inlet area of the range hood is also a significant factor affecting the smoking effect of the range hood. However, an overly large air inlet area results in an overly large volume of the range hood, which is not conducive to the installation of the range hood. Since there are several small holes on the oil net of the range hood, with the increase of the use time, more oil stains and impurities will accumulate on the small holes of the oil net, and users need to frequently clean the oil net to ensure that the oil net of the range hood will not be blocked by oil stains, thereby affecting the user experience and the performance of the range hood. Summary of the Invention
[0004] This application provides a hidden oil net structure of a range hood and a smoking efficiency control method to solve the problems of noise, volume, and the influence of oil stains on the oil net causing blockage and affecting the smoking effect in the prior art when improving the smoking effect of the range hood.
[0005] In a first aspect, this application provides a hidden oil net structure of a range hood, including an oil net structure disposed on the smoke collecting cavity of the range hood. The oil net structure includes: a lower oil net fixedly disposed on the smoke collecting cavity, a first linear motion module disposed on the lower oil net, and an upper oil net disposed on the moving end of the first linear motion module. The first linear motion module drives the upper oil net to move up and down reciprocally. A detection sensor is disposed on the smoke collecting cavity, and the detection sensor faces downward of the range hood. The detection sensor feeds back the detection information to the control system, and the control system controls the working state of the first linear motion module according to the detection information to drive the upper oil net to move.
[0006] Further, the detection sensor adopts a temperature sensor.
[0007] Further, a number of smoke inlet holes for allowing oil fume to pass through are equidistantly arranged on the upper oil screen and the lower oil screen respectively.
[0008] Further, the distribution positions of the smoke inlet holes on the upper oil screen and the lower oil screen are the same or staggered from each other.
[0009] Further, a second linear motion module is arranged on the lower oil screen, and a cleaning scraper is arranged on the moving end of the second linear motion module. The cleaning scraper includes: a scraper rod arranged on the moving end of the second linear motion module, and scraping blades arranged on both sides of the scraper rod. The scraping blades on both sides are respectively in contact with the lower oil screen and the upper oil screen.
[0010] Further, a current sensor is arranged inside the smoke collecting cavity. The current sensor detects the current of the impeller fan of the range hood and feeds it back to the control system. The control system controls the working state of the second linear motion module according to the detection situation of the current sensor.
[0011] Further, the first linear motion module is arranged on one side or both sides of the lower oil screen, and the second linear motion module is arranged on the center line of the lower oil screen.
[0012] In a second aspect, the present application provides a smoking efficiency control method, which performs corresponding operations based on the above-mentioned range hood hidden oil screen structure, and includes the following steps:
[0013] The temperature of the cookware below the range hood is detected by a detection sensor, and the detected value is fed back to the control system for identification. When the detected cookware temperature value is higher than the set threshold range, the first linear motion module is started to drive the upper oil screen to move and increase the smoke inlet area.
[0014] Further, the current of the impeller fan of the range hood is detected by monitoring the current of the current sensor, and the detected current information is fed back to the control system. When the current is 0 and does not change within the set duration, the second linear motion module is started to drive the cleaning scraper to move reciprocally.
[0015] Further, after the second linear motion module is started and the cleaning scraper is driven to move reciprocally to perform the cleaning work, the current sensor continuously detects the current of the impeller fan within the set standby time. If the detected current information does not change within the standby time, the range hood is shut down through the control system.
[0016] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art:
[0017] The method provided by the embodiments of the present application can control the smoke intake area according to the concentration of kitchen fume, so as to improve the smoking effect of the range hood by changing the smoke intake area. The upper oil screen is driven to move by the first linear motion module, thereby adjusting the area of the overall smoke intake channel. This method can avoid the noise problem caused by increasing the output power of the impeller fan to improve the smoking effect, and provide a more comfortable cooking environment for users.
[0018] Meanwhile, after the range hood finishes working, the present application can timely clean the oil stains on the lower oil screen and the upper oil screen, preventing the oil stains from remaining on the surfaces, gaps and smoke intake holes of the lower oil screen and the upper oil screen, so as to avoid the situation of blockage of the smoke intake channel caused by the accumulation of oil stains, and effectively ensure that the smoking effect is not affected by the accumulated oil stains. Description of the Drawings
[0019] The drawings here are incorporated into the specification and form a part of this specification, showing the embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0021] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the drawings in the figures do not constitute a proportional limitation.
[0022] Figure 1 A hidden oil screen structure of a range hood provided by the embodiments of the present application.
[0023] Figure 2 A schematic structural diagram of the oil screen structure arranged on the range hood.
[0024] Figure 3 An exploded view of the oil screen structure.
[0025] Figure 4 A flowchart of a smoking efficiency control method provided by the embodiments of the present application.
[0026] Description of the Reference Numerals in the Drawings:
[0027] 1. Oil screen structure; 11. Lower oil screen; 12. Upper oil screen; 13. First linear motion module; 14. Smoke inlet hole; 15. Second linear motion module; 16. Cleaning squeegee; 161. Squeegee rod; 162. Squeegee blade; 2. Smoke collection chamber; 3. Enclosure assembly. Detailed implementation manners
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are some but not all of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.
[0029] The following disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure of this application, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit this application. In addition, this application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.
[0030] For ease of description, spatial relative relationship terms may be used in the text to describe the relative positional relationship or movement of one element or feature shown in the figure relative to another element or feature. These relative relationship terms such as "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "upper", "front", "rear", etc. These spatial relative relationship terms are intended to include different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figure undergoes a position flip or attitude change or movement state change, then these directional indications will change accordingly. For example, an element described as "below other elements or features" or "beneath other elements or features" will subsequently be oriented as "above other elements or features" or "upper than other elements or features". Therefore, the example term "beneath" can include both upper and lower orientations. The device may be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the text are interpreted accordingly.
[0031] In order to solve the problems of noise and volume caused by improving the smoking effect of the range hood in the prior art, as well as the problem that the smoking effect is affected by the blockage of the oil net by oil stains, the present application provides a hidden oil net structure 1 for a range hood and a smoking efficiency control method, which can control the smoke intake area according to the concentration of kitchen fumes, so as to improve the smoking effect of the range hood by changing the smoke intake area. The upper oil net is driven by the first linear motion module to move, so as to adjust the area of the overall smoke intake channel.
[0032] Please refer to Figure 1 、 Figure 2 FIG. is a hidden oil net structure for a range hood provided by an embodiment of the present application, including an oil net structure 1 arranged on the smoke collecting cavity 2 of the range hood. The oil net structure 1 includes: a lower oil net 11 fixedly arranged on the smoke collecting cavity 2, a first linear motion module 13 arranged on the lower oil net 11, and an upper oil net 12 arranged on the moving end of the first linear motion module 13. The first linear motion module 13 drives the upper oil net 12 to move up and down reciprocally. A detection sensor is arranged on the smoke collecting cavity 2, and the detection sensor faces downward of the range hood. The detection sensor feeds back the detection information to the control system, and the control system controls the working state of the first linear motion module 13 according to the detection information to drive the upper oil net 12 to move.
[0033] The detection sensor adopts a temperature sensor. In some alternative embodiments, the temperature sensor adopts an infrared sensor. The infrared sensor can realize real-time detection of the cooking temperature in the cookware without contacting the cookware, so as to judge the amount of fumes according to the temperature of the cookware, and further meet the requirement of controlling the movement of the upper oil net 12.
[0034] In the whole machine of the range hood, its main structure includes a smoke collecting cavity 2 and a shroud assembly 3. The shroud assembly 3 and the smoke collecting cavity 2 are connected by threads to form a whole. The oil net structure 1 is arranged on the smoke collecting cavity 2 and faces the direction of the stove top. When the impeller fan inside the smoke collecting cavity 2 is started, negative pressure suction will be generated to suck the fumes generated during the cooking process of the cookware placed on the stove top. The fumes pass through the oil net structure 1 and enter the inside of the smoke collecting cavity 2, and are discharged through the pipeline connected to the shroud assembly 3.
[0035] Generally, as the temperature in the cookware increases, the amount of oil fume generated in the cookware also increases. In this application, the temperature of the cookware is detected in real time by a temperature sensor serving as a detection sensor. When the temperature of the cookware is less than 200 °C, the upper oil screen 12 and the lower oil screen 11 are in a stacked state, which can meet the requirement of completely sucking the oil fume at this temperature. When the temperature of the cookware is greater than 200 °C, at this time, the amount of oil fume generated in the cookware is relatively large. Therefore, the first linear motion module 13 is started, and the motor of the first linear motion module 13 drives the slider on the guide rail to move the oil screen upward, increasing the smoke intake area, thereby improving the efficiency of the range hood in sucking smoke per unit time.
[0036] In some embodiments, a number of smoke intake holes 14 for allowing oil fume to pass through are equidistantly arranged on the upper oil screen 12 and the lower oil screen 11 respectively. When the impeller fan is started to generate a negative pressure suction force to suck the oil fume, the oil fume will first pass through the smoke intake holes 14 on the lower oil screen 11 and enter the space between the lower oil screen 11 and the upper oil screen 12, and then pass through the smoke intake holes 14 on the upper oil screen 12 and enter the inside of the smoke collection cavity 2. When the first linear motion module 13 drives the upper oil screen 12 to move upward, the bottom of the upper oil screen 12 will gradually separate from the inner bottom of the smoke collection cavity 2, thereby forming a smoke intake channel with an increasingly larger cross-sectional area between the bottom of the upper oil screen 12 and the inner bottom of the smoke collection cavity 2, which is convenient for effectively improving the efficiency of negative pressure inhalation and discharge of the oil fume.
[0037] In some embodiments, the distribution positions of the smoke intake holes 14 on the upper oil screen 12 and the lower oil screen 11 are the same or offset from each other.
[0038] In some alternative embodiments, the distribution positions of the smoke intake holes 14 on the upper oil screen 12 and the lower oil screen 11 are the same, that is, in the normal state, the positions of the smoke intake holes 14 between the upper oil screen 12 and the lower oil screen 11 correspond one by one. Therefore, when the upper oil screen 12 is in the normal working state, under the action of the negative pressure suction force generated by the operation of the impeller fan, the oil fume is sucked into the area between the upper oil screen 12 and the lower oil screen 11 through the smoke intake holes 14 of the lower oil screen 11, and then enters the inside of the smoke collection cavity 2 through the smoke intake holes 14 of the upper oil screen 12. This setting method can enable the oil fume to quickly pass through the smoke intake holes 14 on the lower oil screen 11 and the upper oil screen 12, thereby effectively improving the overall smoking efficiency.
[0039] In some alternative embodiments, the distribution positions of the smoke inlet holes 14 of the upper oil screen 12 and the lower oil screen 11 are staggered from each other. Therefore, when the upper oil screen 12 is in the normal working state, under the action of the negative pressure suction generated by the impeller fan during operation, the oil fume is sucked through the smoke inlet holes 14 of the lower oil screen 11 into the space between the upper oil screen 12 and the lower oil screen 11. At this time, since the positions of the smoke inlet holes 14 of the lower oil screen 11 and the upper oil screen 12 are staggered from each other, when the oil fume is sucked in, it will first contact the upper oil screen 12 and then enter the smoke collection chamber 2 through the smoke inlet holes 14 on the upper oil screen 12 for discharge. During the process of the oil fume contacting the upper oil screen 12, the oil stains in the oil fume will be filtered, thereby reducing the oil stains mixed in the discharged oil fume and avoiding the discharged oil fume from affecting and polluting the environment and hygiene.
[0040] In some embodiments, please refer to Figure 3 , a second linear motion module 15 is provided on the lower oil screen 11, and a cleaning scraper 16 is provided on the moving end of the second linear motion module 15. The cleaning scraper 16 includes: a scraper rod 161 provided on the moving end of the second linear motion module 15, and scraping blades 162 provided on both sides of the scraper rod 161. The scraping blades 162 on both sides are respectively in contact with the lower oil screen 11 and the upper oil screen 12. When the cleaning work of the oil screen structure 1 needs to be performed, the second linear motion module 15 is started to drive the cleaning scraper 16 to move up and down reciprocally. During the process of moving up and down reciprocally, the scraping blades 162 on both sides of the scraper rod 161 are respectively in contact with the surfaces of the lower oil screen 11 and the upper oil screen 12. Thus, during the process of moving driven by the second linear motion module 15, the oil stains attached to the surfaces of the lower oil screen 11 and the upper oil screen 12 and in the smoke inlet holes 14 are scraped off, thereby avoiding the blockage of the smoke inlet holes 14 caused by the accumulation of oil stains and effectively ensuring that the smoke inlet effect is not affected by the residual oil stains.
[0041] In some alternative embodiments, the wiper blade 162 is made of silica gel. Thus, during the up-and-down movement driven by the second linear motion module 15, the lower oil screen 11 and the upper oil screen 12 can be cleaned by the silica gel wiper blade 162, avoiding the surface abrasion of the lower oil screen 11 or the upper oil screen 12 caused by scratching between the wiper blade 162 and the surface of the lower oil screen 11 or the upper oil screen 12. If the surface of the lower oil screen 11 or the upper oil screen 12 is worn or scratched, it is more likely to have oil stains attached, and the oil stains on the worn part cannot be effectively cleaned. In the long run, the amount of attached oil stains will gradually increase, causing blockage and other situations, greatly affecting the smoke intake effect and smoke intake efficiency. By using the silica gel wiper blade 162, the situation of abrasion and scratching of the upper oil screen 12 or the lower oil screen 11 can be effectively avoided. At the same time, the silica gel material has the material property of oil repellency. After the oil stains on the surface of the upper oil screen 12 or the lower oil screen 11 are scraped off by the silica gel wiper blade 162, it is convenient to remove the scraped oil stains from the wiper blade 162, avoiding the situation that the scraped oil stains remain on the wiper blade 162 and cause secondary pollution to the upper oil screen 12 or the lower oil screen 11 during the subsequent oil scraping and cleaning work.
[0042] In some embodiments, a current sensor is disposed inside the smoke collecting cavity 2. The current sensor detects the current of the impeller fan of the range hood and feeds it back to the control system. The control system controls the working state of the second linear motion module 15 according to the detection situation of the current sensor. During the working process, the real-time current of the impeller fan is detected by the current sensor. When the current reading is 0 and lasts for more than 10 minutes, it is determined that the current range hood has been used up, and thus the second linear motion module 15 is started to drive the cleaning wiper 16 to reciprocate up and down, so as to scrape off the oil stains attached to the surfaces of the lower oil screen 11 and the upper oil screen 12 and in the smoke inlet holes 14. After the range hood is used up, the oil stains are promptly scraped off by the cleaning wiper 16. At this time, the oil stains have not been fully infiltrated into the lower oil screen 11 or the upper oil screen 12 and have not coagulated, so it is relatively easy to scrape them off from the lower oil screen 11 or the upper oil screen 12, avoiding the situation that the oil stains are firmly attached to the upper oil screen 12 or the lower oil screen 11, especially in the smoke inlet holes 14, which affects the smoke intake efficiency.
[0043] In some embodiments, the first linear motion module 13 is disposed on one or both sides of the lower oil screen 11, and the second linear motion module 15 is disposed on the center line of the lower oil screen 11. By disposing the first linear motion module 13 on one or both sides of the lower oil screen 11, the stability of the upper oil screen 12 during the up and down movement driven by the first linear motion module 13 can be ensured. At the same time, the first linear motion module 13 and the second linear motion module 15 are respectively disposed at different positions, so as to respectively drive the upper oil screen 12 and the cleaning squeegee 16, thereby meeting the driving requirements of the upper oil screen 12 and the cleaning squeegee 16, and avoiding the situation that the movements of the upper oil screen 12 and the cleaning squeegee 16 interfere with each other, and ensuring the stable progress of the smoke intake efficiency control and the oil scraping and cleaning work.
[0044] Please refer to Figure 4 , this application also provides a smoking efficiency control method, which performs corresponding operations based on the hidden oil screen structure of the range hood as described above, and includes the following steps:
[0045] The temperature of the cookware below the range hood is detected by a detection sensor, and the detected value is fed back to the control system for identification. When the detected cookware temperature value is higher than the set threshold range, the first linear motion module 13 is started to drive the upper oil screen 12 to move, increasing the smoke intake area.
[0046] Generally, as the temperature in the cookware rises, the amount of oil fume generated in the cookware will increase. In this application, the temperature of the cookware is detected in real time by a temperature sensor as the detection sensor. When the cookware temperature is less than 200 °C, the upper oil screen 12 and the lower oil screen 11 are in a superimposed state, which can meet the complete suction of the oil fume volume at this temperature. When the cookware temperature is greater than 200 °C, at this time, the amount of oil fume generated in the cookware is large, so the first linear motion module 13 is started. The motor of the first linear motion module 13 drives the slider on the guide rail, thereby moving the oil screen upward to increase the smoke intake area, so as to improve the smoking efficiency of the range hood per unit time.
[0047] In some embodiments, the current of the impeller fan of the range hood is detected by a current sensor, and the detected current information is fed back to the control system. When the current is 0 and does not change within the set duration, the second linear motion module 15 is started to drive the cleaning squeegee 16 to move reciprocally.
[0048] During the working process, the real-time current of the impeller fan is detected by a current sensor. When the current reading is 0 and lasts for more than 10 minutes, it is determined that the current range hood has finished being used, and thus the second linear motion module 15 is started to drive the cleaning squeegee 16 to move up and down reciprocally, so as to scrape the oil stains attached to the surfaces of the lower oil screen 11 and the upper oil screen 12 and in the smoke inlet holes 14. After the range hood has finished being used, the oil stains are promptly scraped by the cleaning squeegee 16. At this time, the oil stains have not been fully infiltrated onto the lower oil screen 11 or the upper oil screen 12 and have not coagulated yet, so it is relatively easy to scrape them off the lower oil screen 11 or the upper oil screen 12, avoiding the situation that the oil stains are firmly attached to the upper oil screen 12 or the lower oil screen 11 due to long-term non-cleaning, especially attached in the smoke inlet holes 14, which may affect the smoke inlet efficiency.
[0049] In some embodiments, after starting the second linear motion module 15 and driving the cleaning squeegee 16 to move reciprocally to perform the cleaning work, the current sensor continuously detects the current of the impeller fan within the set standby time. If the detected current information does not change within the standby time, the range hood will execute the shutdown procedure through the control system.
[0050] If there is a current change in the impeller fan within the standby time, it proves that the range hood has entered the usage state again. After the range hood has completed the work, the detected value of the current will be 0 again. When the current is 0 and there is no change within 10 minutes, the second linear motion module 15 is started again, so as to perform the oil scraping and cleaning work again through the cleaning squeegee 16 to ensure that the surfaces of the lower oil screen 11 and the upper oil screen 12 and the smoke inlet holes 14 are clean without oil stains. When there is no further current change in the impeller fan for a continuous period of time, the shutdown procedure is executed through the control system to save the energy consumed in the standby state of the range hood.
[0051] This application can control the size of the smoke inlet area according to the size of the kitchen oil fume concentration, so as to improve the smoking effect of the range hood by changing the smoke inlet area. The upper oil screen 12 is driven to move by the first linear motion module 13, thereby adjusting the area of the overall smoke inlet channel. This method can avoid the noise problem caused by increasing the output power of the impeller fan to improve the smoking effect, and provide a relatively comfortable cooking environment for users.
[0052] In the above embodiments, the descriptions of each embodiment have their own focuses. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0053] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present application.
[0054] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.
[0055] In the present application, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0056] In the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.
[0057] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.
[0058] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, provided that these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these changes and modifications.
[0059] As described above, this is the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims
1. A hidden oil net structure for a range hood, comprising an oil net structure arranged on the smoke collecting cavity of the range hood, characterized in that, The oil screen structure includes: a lower oil screen fixedly arranged on the smoke collecting cavity, a first linear motion module arranged on the lower oil screen, and an upper oil screen arranged on the moving end of the first linear motion module. The first linear motion module drives the upper oil screen to move up and down reciprocally. A detection sensor is arranged on the smoke collecting cavity, and the detection sensor faces downward of the range hood. The detection sensor feeds back the detection information to the control system, and the control system controls the working state of the first linear motion module according to the detection information to drive the upper oil screen to move.
2. The hidden oil screen structure for a range hood according to claim 1, characterized in that: The detection sensor uses a temperature sensor.
3. The hidden oil screen structure of the range hood according to claim 1, wherein, A plurality of smoke inlet holes for allowing oil fume to pass through are equidistantly arranged on the upper oil screen and the lower oil screen respectively.
4. The hidden oil screen structure for a range hood according to claim 3, characterized in that: The distribution positions of the smoke inlet holes on the upper oil screen and the lower oil screen are the same or staggered from each other.
5. The hidden oil screen structure for a range hood according to claim 1, characterized in that: A second linear motion module is arranged on the lower oil screen, and a cleaning scraper is arranged on the moving end of the second linear motion module. The cleaning scraper includes: a scraper rod arranged on the moving end of the second linear motion module, and scraping blades arranged on both sides of the scraper rod. The scraping blades on both sides are respectively in contact with the lower oil screen and the upper oil screen.
6. The hidden oil screen structure of the range hood according to claim 5, characterized in that A current sensor is arranged inside the smoke collecting cavity. The current sensor detects the current of the impeller fan of the range hood and feeds it back to the control system. The control system controls the working state of the second linear motion module according to the detection situation of the current sensor.
7. The hidden oil screen structure of the range hood according to claim 5, wherein, The first linear motion module is arranged on one side or both sides of the lower oil screen, and the second linear motion module is arranged on the center line of the lower oil screen.
8. A smoking efficiency control method, which performs corresponding operations based on the hidden oil net structure of the range hood according to any one of claims 1 to 7, is characterized in that, It includes the following steps: Detect the temperature of the cookware below the range hood through the detection sensor, and feed the detected value back to the control system for identification. When the detected cookware temperature value is higher than the set threshold range, start the first linear motion module to drive the upper oil screen to move and increase the smoke inlet area.
9. The smoking efficiency control method according to claim 8, characterized in that: Detect the current of the impeller fan of the range hood through the current sensor, and feed the detected current information back to the control system. When the current is 0 and does not change within the set duration, start the second linear motion module to drive the cleaning scraper to move reciprocally.
10. The smoking efficiency control method according to claim 9, characterized in that, After starting the second linear motion module and driving the cleaning scraper to move reciprocally to perform the cleaning work, the current sensor continuously detects the current of the impeller fan within the set standby time. If the detected current information does not change within the standby time, the control system shuts down the range hood.