Internal circulation range hood and stove all-in-one machine and control method comprising same

Abstract

The invention discloses an internal circulation range hood and stove all-in-one machine and a control method comprising the same. The internal circulation range hood and stove all-in-one machine comprises a plurality of relatively independent air ducts, and an air inlet fan is arranged in each air duct; the oil smoke concentration sensors are arranged at the air inlets of the multiple air ducts correspondingly, the oil smoke concentration sensors are used for measuring the oil smoke concentration corresponding to the current air ducts and comparing the oil smoke concentration with the preset oil smoke concentration, and the air inlet fans of the corresponding air ducts are turned on or turned off based on the comparison result; the filtering part is arranged at the air inlet of any one of the multiple air ducts, the filtering part is arranged in the arrangement direction of the air inlets of the multiple air ducts in a sliding mode, and the oil smoke concentration sensor measures the oil smoke concentration corresponding to the current air duct and compares the oil smoke concentration with the preset oil smoke concentration; and the filtering part moves to the air inlet of the target air duct based on the comparison result.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated internal circulation smoke and stove machines, and particularly to an integrated internal circulation smoke and stove machine and a control method including the same. Background Art

[0002] Integrated internal circulation smoke and stove machines are gradually favored and concerned by users because they are not restricted by the installation of public flues and can directly discharge the cooking fumes into the kitchen after filtration and purification.

[0003] Existing integrated internal circulation smoke and stove machines usually have a single filter air duct, and the air duct includes filtering structures such as metal filter screen → dip-coated powdered activated carbon → fan, or metal filter screen → fan → high-efficiency filter → activated carbon net, etc. And the above structures are all arranged in the same air duct. When facing light cooking fumes and heavy cooking fumes, due to the different concentrations of the two types of cooking fumes, the service life of the filtering structure that absorbs both light and heavy cooking fumes is sharply reduced, the replacement cycle is short, and the use cost remains high. Moreover, to ensure the filtering effect on heavy cooking fumes, complex filtering structures are usually set. In the case of only light cooking fumes generated, the effect of the filtering and purification module is negatively correlated with the air resistance, that is, the better the filtering and purification effect on light cooking fumes, the greater the air resistance. The fan needs to overcome the resistance of these filtering and purification modules to increase the air volume. Therefore, the fan needs to increase the rotational speed to overcome the resistance of these modules to increase the air volume, but this will cause an increase in pneumatic noise, making users have many concerns when selecting an integrated internal circulation smoke and stove machine. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of large air resistance, high noise and short service life of the filtering structure when the same structure is used to filter different concentrations of cooking fumes in the prior art, and to provide an integrated internal circulation smoke and stove machine and a control method including the same.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] An integrated internal circulation smoke and stove machine, the integrated internal circulation smoke and stove machine includes:

[0007] A plurality of relatively independent air ducts, and an intake fan is arranged in each of the air ducts;

[0008] A cooking fume concentration sensor, the cooking fume concentration sensor is respectively arranged at the air inlets of the plurality of air ducts, and the cooking fume concentration sensor is used to measure the corresponding cooking fume concentration of the current air duct and compare it with a preset cooking fume concentration, and based on the comparison result, turn on or off the intake fan of the corresponding air duct;

[0009] A filtering part is arranged at the air inlet of any one of the plurality of air ducts. The filtering part is slidably arranged along the arrangement direction of the air inlets of the plurality of air ducts. The oil fume concentration sensor measures the current oil fume concentration corresponding to the air duct and compares it with a preset oil fume concentration. The filtering part moves to the air inlet of the target air duct based on the comparison result.

[0010] In this solution, by arranging the plurality of air ducts relatively independently for zoned filtration and purification, the defect that the consumables for filtration in a single air duct have a short service life due to continuous use is overcome; by arranging the filtering part, effective filtration can be carried out for the heavy oil fume generated at different cooking positions, overcoming the defect that the integrated internal circulation smoke stove is only applicable to a light oil fume environment, and the filtering part can be moved to the air inlet of the target air duct, increasing the service life of the consumables for filtration in the air duct for filtering heavy oil fume. At the same time, when filtering light oil fume during zoned filtration, there is no need to move the filtering part to the air inlet of the air duct for filtering light oil fume, without increasing the fan speed, reducing the wind resistance and the use noise of the integrated internal circulation smoke stove.

[0011] Preferably, among the plurality of air ducts, there are a first air duct and a second air duct. When in the first state and the second state, the intake fan of the first air duct is turned on. Among them, the first state is that the oil fume concentration sensor at the air inlet of the second air duct measures that the current corresponding oil fume concentration is greater than the preset oil fume concentration value and the oil fume concentration sensor at the air inlet of the first air duct measures that the current corresponding oil fume concentration is greater than 0 and less than the preset oil fume concentration value. The second state is that the oil fume concentration sensors at the air inlets of the first air duct and the second air duct measure that the current corresponding oil fume concentrations are both greater than 0 and less than the preset oil fume concentration value.

[0012] When in the first state, the third state, the fourth state, and the fifth state, the intake fan of the second air duct is turned on. Among them, the third state is that the oil fume concentration sensors at the air inlets of the first air duct and the second air duct measure that the current corresponding oil fume concentrations are both greater than the preset oil fume concentration value. The fourth state is that the oil fume concentration sensor at the air inlet of the second air duct measures that the current corresponding oil fume concentration is greater than the preset oil fume concentration value and the oil fume concentration sensor at the air inlet of the first air duct measures that the current corresponding oil fume concentration is 0. The fifth state is that the oil fume concentration sensor at the air inlet of the first air duct measures that the current corresponding oil fume concentration is greater than the preset oil fume concentration value and the oil fume concentration sensor at the air inlet of the second air duct measures that the current corresponding oil fume concentration is less than the preset oil fume concentration value.

[0013] In the present scheme, through the above-mentioned settings, the air intake fans of the first air duct and the second air duct are turned on accordingly for different working conditions of dual-stove cooking, wherein the first air duct is used to filter light oil fume, that is, oil fume with an oil fume concentration less than a preset oil fume concentration, and the second air duct is used to filter heavy oil fume, that is, oil fume with an oil fume concentration greater than a preset oil fume concentration, thereby realizing zone control and zone filtration, and improving the service life of filtering consumables.

[0014] Preferably, the internal circulation smoke and stove integrated machine further comprises a connecting passage, one end of the connecting passage is connected to the air inlet of the first air duct, and the other end of the connecting passage is connected to the air inlet of the second air duct, and a diverter plate and a drive motor are further arranged in the first air duct, and the diverter plate is arranged between the connecting passage and the air inlet fan of the first air duct, and when in the third state, the fourth state and the fifth state, the diverter plate closes the first air duct through the drive motor;

[0015] When in the second state, the air intake fan of the second air duct is turned off.

[0016] In this solution, through the above-mentioned settings, the oil smoke of different concentrations generated in different areas can be effectively guided to the target air duct, so as to overcome the defect that the first air duct or the second air duct cannot smoothly guide the oil smoke when the oil smoke of different concentrations is generated in different areas.

[0017] Preferably, the internal circulation smoke and stove integrated machine further comprises a slide rail, the slide rail extends along the length direction of the internal circulation smoke and stove integrated machine, the filter part is slidably connected to the slide rail, and when in the first state, the second state, the third state and the fourth state, the filter part cover is arranged at the air inlet of the second air duct;

[0018] When in the fifth state, the filter cover is arranged at the air inlet of the first air duct.

[0019] In this solution, the above arrangement is used to enable the filter unit to move to the air inlet of the target air duct.

[0020] Preferably, the filter portion includes a cover plate, a filter screen and a rotating screen, the cover plate is provided with a slide groove on the side facing the slide rail, the slide rail is provided with a protrusion corresponding to the slide groove, the protrusion cooperates with the slide groove, the rotating screen is embedded in the cover plate, and the filter screen cover is provided on the rotating screen and is arranged away from the slide rail.

[0021] In this solution, the above-mentioned arrangement is adopted to improve the filtering effect of the filter unit and effectively filter heavy oil smoke.

[0022] Preferably, the internal circulation smoke and stove integrated machine is provided with air outlets corresponding to the first air duct and the second air duct, and the air outlets are located at both end faces of the internal circulation smoke and stove integrated machine along the length direction.

[0023] In this solution, through the above-mentioned settings, on the basis of ensuring that the oil smoke is discharged smoothly after filtering, the filtered oil smoke is prevented from flowing toward the wall or the user's location, thereby improving the user experience.

[0024] Preferably, the first air duct also includes an exhaust fan, a filter, activated carbon and a guide plate. The air intake fan and the exhaust fan of the first air duct are arranged in sequence along the extension direction of the first air duct. The air intake fan of the first air duct is located between the air inlet of the first air duct and the exhaust fan. The filter is arranged between the air intake fan and the exhaust fan of the first air duct. The activated carbon is arranged between the exhaust fan and the guide plate. The guide plate is arranged close to the air outlet of the first air duct.

[0025] In this solution, through the above-mentioned settings, on the basis of effective filtration and purification of light oil smoke, the filtration structure is simple and the wind resistance is small, which ensures that the oil smoke flows out quickly after filtration and increases the circulating air volume.

[0026] Preferably, the second air duct also includes a heating adsorption component, a filtering component, an ozone decomposition component and a guide plate, the air intake fan of the second air duct is arranged close to the air inlet of the second air duct, the guide plate is arranged close to the air outlet of the second air duct, the ozone decomposition component is arranged at the air outlet of the second air duct, the heating adsorption component is arranged between the air intake fan and the filtering component, the filtering component is arranged between the heating adsorption component and the ozone decomposition component, and the guide plate is arranged between the filtering component and the ozone decomposition component.

[0027] In this solution, through the above-mentioned settings, heavy oil smoke can be effectively filtered and purified, which is suitable for complex cooking environments, and the heavy oil smoke does not need to enter the first air duct, thereby extending the service life of the filter consumables in the first air duct in disguise.

[0028] A control method for an internal circulation smoke and stove integrated machine, the control method for the internal circulation smoke and stove integrated machine is implemented by the internal circulation smoke and stove integrated machine as described above, and the control method for the internal circulation smoke and stove integrated machine comprises the following steps:

[0029] S10, measuring the current oil fume concentrations corresponding to the first air duct and the second air duct according to the oil fume concentration sensors at the air inlets of the first air duct and the second air duct of the internal circulation smoke and stove integrated machine;

[0030] S20. Determine whether the cooking state at the air inlets of the first air duct and the second air duct falls into any one of the first state, the second state, the third state, the fourth state, and the fifth state;

[0031] S30. Turn on the intake air blower of the first air duct and / or the second air duct according to the cooking state at the air inlets of the first air duct and the second air duct. When the intake air blower of the first air duct is turned on, synchronously turn on the auxiliary exhaust blower of the first air duct. When the cooking state at the air inlets of the first air duct and the second air duct is any one of the first state, the third state, the fourth state, and the fifth state, turn on the intake air blower of the second air duct.

[0032] In this solution, the actual cooking states of the first air duct and the second air duct at different positions are judged by the oil fume concentration sensor, and the first air duct and / or the second air duct are turned on according to the actual cooking state, so as to increase the oil fume flow rate, reduce the air flow resistance, and reduce the working noise when filtering and circulating light oil fume. At the same time, it can also effectively filter and purify heavy oil fume, is applicable to complex cooking environments, and the filtering effect is guaranteed, improving the user experience and dispelling many concerns of users when choosing an internal circulation range hood integrated machine.

[0033] Preferably, step S30 further includes the following steps:

[0034] S31. When the cooking state at the air inlets of the first air duct and the second air duct is any one of the first state, the second state, the third state, and the fourth state, slide the filtering part of the internal circulation range hood integrated machine to the air inlet of the second air duct;

[0035] When the cooking state at the air inlets of the first air duct and the second air duct is in the fifth state, slide the filtering part to the air inlet of the first air duct.

[0036] In this solution, by moving the filtering part to the target air duct in different states, heavy oil fume can effectively contact the filtering part and then enter the second air duct, ensuring the filtering effect of heavy oil fume. And the movable filtering part can avoid the air inlet of the first air duct when only light oil fume is generated, further reducing the intake air resistance of the first air duct and reducing the noise during filtering and purifying light oil fume.

[0037] The positive and progressive effects of the present invention are as follows: By relatively independently arranging multiple air ducts for zoned filtration and purification, the defect that the consumables for filtration in a single air duct have a short service life due to continuous use is overcome; by providing a filtration part, effective filtration can be carried out for heavy cooking fumes generated at different cooking positions, overcoming the defect that the integrated internal circulation smoke stove is only applicable to light cooking fume environments, and the filtration part can be moved to the air inlet of the target air duct, increasing the service life of the consumables for filtration in the air duct for filtering heavy cooking fumes. At the same time, when carrying out zoned filtration for light cooking fumes, there is no need to move the filtration part to the air inlet of the air duct for filtering light cooking fumes, without increasing the fan speed, reducing the wind resistance and the operating noise of the integrated internal circulation smoke stove. Description of the Drawings

[0038] Figure 1 Stereogram of the integrated internal circulation smoke stove according to a preferred embodiment of the present invention.

[0039] Figure 2 Structural schematic diagram of the first air duct and the second air duct according to a preferred embodiment of the present invention.

[0040] Figure 3 Structural schematic diagram of the intake fan according to a preferred embodiment of the present invention.

[0041] Figure 4 Structural schematic diagram of the filtration part according to a preferred embodiment of the present invention.

[0042] Figure 5 Position relationship diagram of the flow dividing plate and the filtration part according to a preferred embodiment of the present invention.

[0043] Figure 6 Structural schematic diagram of the filtration part in the projection direction of the first air duct according to a preferred embodiment of the present invention.

[0044] Figure 7 Flowchart of the control method of the integrated internal circulation smoke stove according to a preferred embodiment of the present invention.

[0045] Description of the Reference Numerals:

[0046] Intake fan 1

[0047] Auxiliary exhaust fan 2

[0048] Oil fume concentration sensor 3

[0049] Filtration part 4

[0050] Cover plate 41

[0051] Filter net 42

[0052] Rotating net 43

[0053] Flow dividing plate 5

[0054] Slide rail 6

[0055] Air outlet 7

[0056] First air duct 10

[0057] Filter screen 11

[0058] Activated carbon 12

[0059] Deflector 13

[0060] Second air duct 20

[0061] Heating and adsorption assembly 21

[0062] Heating resistance wire 211

[0063] Axial flow fan 212

[0064] Adsorption layer 213

[0065] Filter assembly 22

[0066] Activated carbon layer 221

[0067] Composite layer 222

[0068] Ozone decomposition assembly 23

[0069] Communication channel 30

[0070] Air inlet 40 Specific implementation mode

[0071] The present invention will be further described below by way of examples, but the present invention is not limited to the scope of the described examples accordingly.

[0072] This embodiment provides an integrated inner circulation smoke and stove machine, and the specific structure is as Figure 1 、 Figure 2 and Figure 3 shown. The integrated inner circulation smoke and stove machine includes:

[0073] A plurality of relatively independent air ducts, and an intake fan 1 is arranged in each air duct;

[0074] An oil fume concentration sensor 3, and the oil fume concentration sensor 3 is respectively arranged at the air inlets 40 of the plurality of air ducts. The oil fume concentration sensor 3 is used to measure the corresponding oil fume concentration in the current air duct and compare it with a preset oil fume concentration, and based on the comparison result, the intake fan 1 of the corresponding air duct is turned on or off;

[0075] The filtering part 4 is arranged at the air inlet 40 of any one of the plurality of air ducts. The filtering part 4 is slidably arranged along the arrangement direction of the air inlets 40 of the plurality of air ducts. The oil fume concentration sensor 3 measures the corresponding oil fume concentration of the current air duct and compares it with the preset oil fume concentration. The filtering part 4 moves to the air inlet 40 of the target air duct based on the comparison result.

[0076] Specifically, the air duct is a channel inside the integrated inner circulation smoke stove cabinet. Among them, the extending direction of the air duct is downward along the height direction of the integrated inner circulation smoke stove from the air inlet 40. Taking the number of air ducts as two as an example, each air duct includes an intake fan 1. The intake fan 1 is used to suck the oil fume into the air duct. The air duct is used to filter and purify the oil fume, and circulate the filtered and purified oil fume to the space where the integrated inner circulation smoke stove is located, without the need to communicate with the public flue, preventing the flue gas in the public flue from entering the space where the integrated inner circulation smoke stove is located.

[0077] In addition, by arranging the oil fume concentration sensor 3 at the air inlets 40 of the plurality of air ducts to detect the oil fume concentration at different positions of the integrated inner circulation smoke stove. In the case where the number of air ducts is two, the integrated inner circulation smoke stove is provided with two burners, and the burners correspond to the air ducts one by one, so as to accurately identify whether the oil fume concentration is light oil fume or heavy oil fume, so as to turn on or off the intake fan 1 of the corresponding air duct based on the comparison result. The oil fume concentration sensor 3 is a sensor in the prior art. The oil fume concentration sensor 3 is electrically connected to the control board of the integrated inner circulation smoke stove, so as to turn on or off the intake fan 1 of the corresponding air duct through the control board. It can be understood that when the intake fan 1 is turned on, the corresponding air duct can absorb the oil fume, and when the intake fan 1 is turned off, the corresponding air duct no longer absorbs the oil fume. In this embodiment, the plurality of air ducts are relatively independently arranged, and different air ducts are used to filter and purify the oil fume with different concentrations generated by different burners respectively, so as to overcome the defect that the filtering consumables used in a single air duct have a short service life due to continuous use.

[0078] In this embodiment, no improvement is made to the oil fume concentration sensor 3 and the control board, so no more details will be described here.

[0079] At the same time, in this embodiment, by setting the movable filtering part 4, the filtering part 4 identifies the burner that generates heavy oil fume based on the oil fume concentration sensor 3, and makes the heavy oil fume generated by any one of the two burners at different cooking positions be effectively filtered by means of manual movement or driving the filtering part 4 to slide, overcoming the defect that the integrated inner circulation smoke stove is only suitable for use in a light oil fume environment, and can move the filtering part 4 to the air inlet 40 of the target air duct that generates heavy oil fume. On the basis of setting filtering consumables in the air duct originally used to filter heavy oil fume, the filtering part 4 is added, which is equivalent to increasing the service life of the filtering consumables used in the air duct for filtering heavy oil fume in disguise.

[0080] In the case where light cooking fumes are generated at another cooking hob, when the relatively independent two air ducts achieve partitioned filtration, it can be understood that for light cooking fumes, there is no need to move the filtering part 4 to the air inlet 40 of the air duct for filtering light cooking fumes, and there is no need to increase the rotational speed of the intake fan 1 in the air duct for filtering light cooking fumes. When using one of the air ducts to filter light cooking fumes, the air resistance and the operating noise of the internal circulation range hood integrated stove can be reduced.

[0081] In this embodiment, among the multiple air ducts, there are a first air duct 10 and a second air duct 20. When in the first state and the second state, the intake fan 1 of the first air duct 10 is turned on. Among them, the first state is that the oil fume concentration sensor 3 at the air inlet 40 of the second air duct 20 measures that the current corresponding oil fume concentration is greater than the preset oil fume concentration value, and the oil fume concentration sensor 3 at the air inlet 40 of the first air duct 10 measures that the current corresponding oil fume concentration is greater than 0 and less than the preset oil fume concentration value; the second state is that the oil fume concentration sensors 3 at the air inlets 40 of the first air duct 10 and the second air duct 20 measure that the current corresponding oil fume concentrations are both greater than 0 and less than the preset oil fume concentration value.

[0082] When in the first state, the third state, the fourth state, and the fifth state, the intake fan 1 of the second air duct 20 is turned on. Among them, the third state is that the oil fume concentration sensors 3 at the air inlets 40 of the first air duct 10 and the second air duct 20 measure that the current corresponding oil fume concentrations are both greater than the preset oil fume concentration value; the fourth state is that the oil fume concentration sensor 3 at the air inlet 40 of the second air duct 20 measures that the current corresponding oil fume concentration is greater than the preset oil fume concentration value, and the oil fume concentration sensor 3 at the air inlet 40 of the first air duct 10 measures that the current corresponding oil fume concentration is 0; the fifth state is that the oil fume concentration sensor 3 at the air inlet 40 of the first air duct 10 measures that the current corresponding oil fume concentration is greater than the preset oil fume concentration value, and the oil fume concentration sensor 3 at the air inlet 40 of the second air duct 20 measures that the current corresponding oil fume concentration is less than the preset oil fume concentration value.

[0083] Specifically, the second air duct 20 is used to filter heavy cooking fumes. A cooking hob and an oil fume concentration sensor 3 are correspondingly arranged at the air inlets 40 of both the first air duct 10 and the second air duct 20, as Figure 7As shown, when the oil fume concentration sensor 3 at the air inlet 40 of the second air duct 20 measures that the oil fume concentration corresponding to the current cooking range is greater than the preset oil fume concentration value, that is, heavy oil fume is generated, and the oil fume concentration sensor 3 at the air inlet 40 of the first air duct 10 measures that the oil fume concentration corresponding to the current cooking range is greater than 0 and less than the preset oil fume concentration value, that is, light oil fume is generated, the intake fan 1 of the first air duct 10 is turned on, and the light oil fume is filtered through the first air duct 10. It can be understood that when the intake fan 1 of the first air duct 10 is turned on, the intake fan 1 of the second air duct 20 is also turned on to filter and purify the heavy oil fume generated at the air inlet 40 of the second air duct 20, realizing the filtration of light oil fume and the partitioned filtration of heavy oil fume.

[0084] When the oil fume concentration sensors 3 at the air inlets 40 of the first air duct 10 and the second air duct 20 measure that the oil fume concentrations corresponding to the current cooking range are both greater than 0 and less than the preset oil fume concentration value, that is, light oil fume is generated in both cases, the intake fan 1 of the first air duct 10 is turned on. This realizes the rapid filtration and circulation of light oil fume and reduces noise.

[0085] When the oil fume concentration sensors 3 at the air inlets 40 of the first air duct 10 and the second air duct 20 measure that the oil fume concentrations corresponding to the current cooking range are both greater than the preset oil fume concentration value, the intake fan 1 of the second air duct 20 is turned on.

[0086] When the oil fume concentration sensor 3 at the air inlet 40 of the second air duct 20 measures that the oil fume concentration corresponding to the current cooking range is greater than the preset oil fume concentration value and the oil fume concentration sensor 3 at the air inlet 40 of the first air duct 10 measures that the oil fume concentration corresponding to the current cooking range is 0, the intake fan 1 of the second air duct 20 is turned on.

[0087] When the oil fume concentration sensor 3 at the air inlet 40 of the first air duct 10 measures that the oil fume concentration corresponding to the current cooking range is greater than the preset oil fume concentration value and the oil fume concentration sensor 3 at the air inlet 40 of the second air duct 20 measures that the oil fume concentration corresponding to the current cooking range is less than the preset oil fume concentration value, the intake fan 1 of the second air duct 20 is turned on. To turn on the intake fans 1 of the first air duct 10 and the second air duct 20 corresponding to different working conditions of double-stove cooking. Among them, the first air duct 10 is used to filter light oil fume, that is, oil fume with a concentration less than the preset oil fume concentration, and the second air duct 20 is used to filter heavy oil fume, that is, oil fume with a concentration greater than the preset oil fume concentration. The first air duct 10 and the second air duct 20 are relatively independent to realize the partition control and partition filtration of oil fume with different concentrations, so that the filter consumables in the first air duct 10, that is, the air duct for filtering light oil fume, are not polluted by heavy oil fume, and the service life is correspondingly improved.

[0088] In this embodiment, the integrated inner - circulation smoke and stove also includes a communication channel 30. One end of the communication channel 30 is connected to the air inlet 40 of the first air duct 10, and the other end of the communication channel 30 is connected to the air inlet 40 of the second air duct 20. A flow - dividing plate 5 and a driving motor (not shown in the figure) are also arranged in the first air duct 10. The flow - dividing plate 5 is arranged between the communication channel 30 and the intake fan 1 of the first air duct 10. When in the third state, the fourth state, and the fifth state, the flow - dividing plate 5 closes the first air duct 10 through the driving motor;

[0089] When in the second state, the intake fan 1 of the second air duct 20 is closed.

[0090] Specifically, the communication channel 30 is located between the air inlets 40 of the first air duct 10 and the second air duct 20. In a state where heavy - quality oil fume is generated at the stove head corresponding to the first air duct 10 and the first air duct 10 is closed, the heavy - quality oil fume is diverted to the second air duct 20 through the communication channel 30. Similarly, in a state where light - quality oil fume is generated at the stove head corresponding to the second air duct 20 and the second air duct 20 is closed, the light - quality oil fume is diverted to the first air duct 10 through the communication channel 30.

[0091] The flow - dividing plate 5 is a flat plate. The flow - dividing plate 5 extends along the length direction of the integrated inner - circulation smoke and stove and has the same width as the first air duct 10. One side edge of the flow - dividing plate 5 is rotatably connected to the inner wall of the first air duct 10 through a rotating shaft. The output shaft of the driving motor is coaxially connected to the rotating shaft. When in the third state, the fourth state, and the fifth state, the oil - fume concentration sensor 3 transmits the comparison result to the control board. The driving motor is electrically connected to the control board to drive the flow - dividing plate 5 to close the first air duct 10. The oil fume with different concentrations generated in different regions is effectively diverted to the target air duct, so as to overcome the defect that when oil fume with different concentrations is generated in different regions, the first air duct 10 or the second air duct 20 cannot smoothly introduce oil fume. Prevent heavy - quality oil fume from entering the first air duct 10 and polluting the filter consumables, thereby prolonging the service life of the filter consumables in the first air duct 10. Extend its replacement cycle and reduce the use cost.

[0092] It should be noted that since the second air duct 20 is used to filter heavy - quality oil fume, therefore, there is no need to set a flow - dividing plate 5. The intake fan 1 in the second air duct 20 can be closed through the control board to achieve the closing of the second air duct 20.

[0093] As Figure 5 shown, in this embodiment, the integrated inner - circulation smoke and stove also includes a slide rail 6. The slide rail 6 extends along the length direction of the integrated inner - circulation smoke and stove. The filtering part 4 is slidably connected to the slide rail 6. When in the first state, the second state, the third state, and the fourth state, the filtering part 4 covers the air inlet 40 of the second air duct 20;

[0094] When in the fifth state, the filter unit 4 is located at the air inlet 40 of the first air duct 10 .

[0095] Specifically, the slide rail 6 extends from the air inlet 40 of the first air duct 10 to the air inlet 40 of the second air duct 20, and from the overall point of view, it extends along the length direction of the internal circulation smoke and stove integrated machine, and the filter unit 4 is slidably connected to the slide rail 6 to slide from the air inlet 40 of the first air duct 10 to the air inlet 40 of the second air duct 20. When in the first state, the third state and the fourth state, the stove head corresponding to the second air duct 20 produces heavy oil smoke. At this time, the filter unit 4 is covered at the air inlet 40 of the second air duct 20 and preliminarily filters the heavy oil smoke entering the second air duct 20. When in the second state, since the stoves corresponding to the first air duct 10 and the second air duct 20 do not produce heavy oil smoke, on this basis, the filter unit 4 does not need to be moved, that is, it remains at the air inlet covered in the second air duct 20, and the air intake fan 1 of the first air duct 10 is turned on to filter and purify the light oil smoke, and the air intake fan 1 of the second air duct 20 does not need to be turned on.

[0096] Similarly, if Figure 6 As shown, when in the fifth state, the stove corresponding to the first air duct 10 produces heavy oil smoke. At this time, the filter part 4 is covered at the air inlet 40 of the first air duct 10.

[0097] In other embodiments, a servo motor is also provided on the slide rail 6, and the servo motor is electrically connected to the control board to drive the filter part 4 to move to the target air duct. The servo motor is a motor structure in the prior art and will not be described in detail here.

[0098] Furthermore, if Figure 4 As shown, in this embodiment, the filter part 4 includes a cover plate 41, a filter screen 42 and a rotating screen 43. The cover plate 41 is provided with a slide groove on the side facing the slide rail 6. The slide rail 6 is provided with a protrusion corresponding to the slide groove. The protrusion cooperates with the slide groove. The rotating screen 43 is embedded in the cover plate 41, and the filter screen 42 is covered on the rotating screen 43 and is arranged away from the slide rail 6.

[0099] Specifically, the filter 42 is a filter used in the prior art to filter heavy oil smoke, and the rotating net 43 is a filter with a rotating function in the prior art. The rotating net 43 is driven by a fan, and the fan is electrically connected to the control board to perform preliminary filtering for heavy oil smoke when the filter unit 4 moves to the target air duct and the air intake fan 1 of the second air duct 20 is turned on. The size of the cover plate 41 is the same as the size of the air inlet 40 of the first air duct 10 or the second air duct 20. The protrusion and the slide groove are both snap-on structures in the prior art, and will not be described in detail here. The cover plate 41 is used to cover the air inlet 40 to prevent oil smoke from escaping, thereby improving the filtering effect of the filter unit 4.

[0100] In this embodiment, the integrated inner-circulation range hood is provided with air outlets 7 corresponding to the first air duct 10 and the second air duct 20, and the air outlets 7 are located at both end faces of the integrated inner-circulation range hood along the length direction.

[0101] Specifically, compared with the end faces of the integrated inner-circulation range hood in the width direction, the end faces at both ends of the integrated inner-circulation range hood along the length direction can avoid contacting the wall or corresponding to the position where the user is located. Therefore, on the basis of ensuring the smooth discharge of the oil fume after purification and filtration, it can prevent the filtered oil fume from flowing towards the position where the user is located, thus enhancing the user experience.

[0102] In this embodiment, the first air duct 10 further includes an auxiliary exhaust fan 2, a filter screen 11, activated carbon 12 and a guide plate 13. The intake fan 1 and the auxiliary exhaust fan 2 of the first air duct 10 are arranged in sequence along the extension direction of the first air duct 10. The intake fan 1 of the first air duct 10 is located between the air inlet 40 and the auxiliary exhaust fan 2 of the first air duct 10. The filter screen 11 is arranged between the intake fan 1 and the auxiliary exhaust fan 2 of the first air duct 10. The activated carbon 12 is arranged between the auxiliary exhaust fan 2 and the guide plate 13. The guide plate 13 is arranged close to the air outlet 7 of the first air duct 10.

[0103] Specifically, the filter screen 11 is a HEPA net, the activated carbon 12 is a flat plate, and the guide plate 13 is an arc-shaped plate. The guide plate 13 is arranged close to the air outlet 7 of the first air duct 10 and extends towards the air outlet 7 to discharge the light oil fume filtered and purified by the filter screen 11 and the activated carbon 12 into the space where the integrated inner-circulation range hood is located. The intake fan 1 of the first air duct 10 is arranged close to the air inlet 40. Along the extension direction of the first air duct 10, the light oil fume sequentially flows through the air inlet 40 of the first air duct 10, the intake fan 1 of the first air duct 10, the filter screen 11, the auxiliary exhaust fan 2, the activated carbon 12 and the guide plate 13. It can be understood that the filter screen 11 and the activated carbon 12 only filter the light oil fume, and their air resistance is small. Therefore, in the case of a simple filtering structure in the first air duct 10, the oil fume can flow out quickly after being filtered, improving the circulation air volume. And in addition to the intake fan 1 in the first air duct 10, an auxiliary exhaust fan 2 is additionally provided. By increasing the number of fans 2, when the intake fan 1 of the first air duct 10 is turned on, there is no need to increase the rotation speed of the intake fan 1. The intake fan 1 and the auxiliary exhaust fan 2 work simultaneously. Compared with a single intake fan 1, the circulation air volume is increased, and on the basis of not increasing the rotation speeds of the intake fan 1 and the auxiliary exhaust fan 2, the intake air volume is increased, the intake resistance is reduced, the filtering and purification effects are improved, and the noise during the inner-circulation of the oil fume in the first air duct 10 is reduced, that is, noise reduction. The intake fan 1 and the auxiliary exhaust fan 2 are both fans in the prior art, and their structures are not improved in this embodiment, so no more details will be described here. It can be understood that the auxiliary exhaust fan 2 is also electrically connected to the control board.

[0104] In this embodiment, the second air duct 20 also includes a heating adsorption component 21, a filtering component 22, an ozone decomposition component 23 and a guide plate 13. The air intake fan 1 of the second air duct 20 is arranged near the air inlet 40 of the second air duct 20, the guide plate 13 is arranged near the air outlet 7 of the second air duct 20, the ozone decomposition component 23 is arranged at the air outlet 7 of the second air duct 20, the heating adsorption component 21 is arranged between the air intake fan 1 and the filtering component 22, the filtering component 22 is arranged between the heating adsorption component 21 and the ozone decomposition component 23, and the guide plate 13 is arranged between the filtering component 22 and the ozone decomposition component 23.

[0105] Specifically, the heating adsorption component 21 and the ozone decomposition component 23 are both electrically connected to the control board. The heating adsorption component 21 includes a spiral heating resistor 211, an axial fan 212 and an adsorption layer 213. The adsorption layer 213 is provided with a plurality of through holes to heat and oxidize the heavy oil smoke passing through the filter unit 4 to filter the gaseous pollutants in the heavy oil smoke. The filter component 22 includes an activated carbon layer 221 and a composite layer 222. The composite layer 222 is a mesh structure in the prior art for adsorbing gaseous pollutants. The activated carbon layer 221 is provided with a plurality of through holes to filter the gaseous pollutants and smaller oil smoke particles remaining after filtering by the heating adsorption component 21. The ozone decomposition component 23 is a UV lamp in the prior art. The UV lamp is provided with a plurality of UV lamps and is spaced apart between two adjacent UV lamps to oxidize and decompose gaseous pollutants with smaller particle sizes by ozone. In this way, the heavy oil fume is effectively filtered and purified, which is suitable for complex cooking environments, and the heavy oil fume does not need to enter the first air duct 10, so as to extend the service life of the filter consumables in the first air duct 10 in disguised form. It can be understood that the guide plate 13 in the first air duct 10 and the guide plate 13 in the second air duct 20 have the same shape and material, which will not be described in detail here.

[0106] like Figure 7 As shown, this embodiment also provides a control method for an internal circulation smoke and stove integrated machine, which is implemented by the above-mentioned internal circulation smoke and stove integrated machine. The control method for the internal circulation smoke and stove integrated machine includes the following steps:

[0107] S10, measuring the current oil fume concentrations corresponding to the first air duct 10 and the second air duct 20 according to the oil fume concentration sensor 3 at the air inlet 40 of the first air duct 10 and the second air duct 20 of the internal circulation smoke and stove integrated machine;

[0108] S20, determining whether the cooking state at the air inlet 40 of the first air duct 10 and the second air duct 20 falls into any one of the first state, the second state, the third state, the fourth state and the fifth state;

[0109] S30. Turn on the intake fan 1 of the first air duct 10 and / or the second air duct 20 according to the cooking state at the air inlet 40 of the first air duct 10 and the second air duct 20. When the intake fan 1 of the first air duct 10 is turned on, synchronously turn on the exhaust assist fan 2 of the first air duct 10. When the cooking state at the air inlet 40 of the first air duct 10 and the second air duct 20 is any one of the first state, the third state, the fourth state, and the fifth state, turn on the intake fan 1 of the second air duct 20.

[0110] Specifically, the oil fume concentration measured by the oil fume concentration sensor 3 is represented by ψ, and the preset oil fume concentration is represented by ψ c . When the oil fume concentration sensor 3 corresponding to the second air duct 20 detects that the oil fume concentration ψ > ψ c , and the oil fume concentration sensor 3 corresponding to the first air duct 10 detects that the oil fume concentration ψ < ψ c , the internal circulation range hood integrated machine is in the first state, and it is recognized that the second air duct 20 is for heavy oil fume cooking. Check whether the oil fume concentration ψ detected by the oil fume concentration sensor 3 corresponding to the first air duct 10 is 0. If so, it is in the fourth state; if not, it is in the first state. In the fourth state, the flow dividing plate 5 closes the first air duct 10, the intake fan 1 of the first air duct 10 stops rotating, the exhaust assist fan 2 stops rotating, and the rotating net 43 of the filtering part 4 starts, and the heating adsorption component 21 and the ozone decomposition component 23 start.

[0111] When in the first state, the flow dividing plate 5 opens the first air duct 10, the intake fan 1 of the first air duct 10 is turned on, and the exhaust assist fan 2 starts.

[0112] When the oil fume concentration sensor 3 corresponding to the second air duct 20 detects that the oil fume concentration ψ > ψ c , and the oil fume concentration sensor 3 corresponding to the first air duct 10 detects that the oil fume concentration ψ > ψ c , both the first air duct 10 and the second air duct 20 are for heavy oil fume cooking. The filtering part 4 covers the air inlet 40 of the second air duct 20, the flow dividing plate 5 closes the first air duct 10, the intake fan 1 of the first air duct 10 stops rotating, the rotating net 43 of the filtering part 4 starts, and the heating adsorption component 21 and the ozone decomposition component 23 start. At this time, the internal circulation range hood integrated machine is in the third state.

[0113] When the oil fume concentration sensor 3 corresponding to the second air duct 20 detects that the oil fume concentration ψ < ψ c , and the oil fume concentration sensor 3 corresponding to the first air duct 10 detects that the oil fume concentration ψ < ψ c, the cooktops corresponding to the first air duct 10 and the second air duct 20 are both for light-oil fume cooking. The filtering part 4 covers the air inlet 40 of the second air duct 20. The flow dividing plate 5 opens the first air duct 10, the intake fan 1 of the second air duct 20 stops rotating, and the auxiliary exhaust fan 2 starts. At this time, the integrated inner-circulation range hood is in the second state.

[0114] When the fume concentration sensor 3 corresponding to the second air duct 20 detects that the fume concentration ψ < ψ c , and the fume concentration sensor 3 corresponding to the first air duct 10 detects that the fume concentration ψ > ψ c , the cooktop corresponding to the first air duct 10 is for heavy-oil fume cooking. The filtering part 4 covers the air inlet 40 of the first air duct 10. The flow dividing plate 5 closes the first air duct 10, the intake fan 1 of the first air duct 10 stops rotating, and the heavy-oil fume generated by the cooktop corresponding to the first air duct 10 flows into the air inlet 40 of the second air duct 20 through the communication channel 30. The rotating net 43 of the filtering part 4 starts, and the heating adsorption component 21 and the ozone decomposition component 23 start. At this time, the integrated inner-circulation range hood is in the fifth state.

[0115] The actual cooking states of the first air duct 10 and the second air duct 20 at different positions are judged through the fume concentration sensor 3, and the intake fan 1 of the first air duct 10 and / or the second air duct 20 is turned on according to the actual cooking state, so as to increase the fume flow rate, reduce the air flow resistance, and reduce the working noise when filtering and circulating the light-oil fume. At the same time, it can also effectively filter and purify the heavy-oil fume. When the intake fan 1 of the first air duct 10 or the second air duct 20 is closed, the fume flows into the target air duct through the communication channel 30, which is applicable to complex cooking environments, and the filtering effect is guaranteed, improving the user experience and dispelling many concerns of users when selecting an integrated inner-circulation range hood.

[0116] In this embodiment, the following steps are further included in step S30:

[0117] S31. When the cooking state at the air inlets 40 of the first air duct 10 and the second air duct 20 is any one of the first state, the second state, the third state, and the fourth state, slide the filtering part 4 of the integrated inner-circulation range hood to the air inlet 40 of the second air duct 20;

[0118] When the cooking state at the air inlets 40 of the first air duct 10 and the second air duct 20 is in the fifth state, slide the filtering part 4 to the air inlet 40 of the first air duct 10.

[0119] By moving the filtering part 4 to the target air duct in different states, heavy fume can effectively contact the filtering part 4 and then enter the second air duct 20, ensuring the filtering effect of heavy fume. Moreover, the movable filtering part 4 can avoid the air inlet 40 of the first air duct 10 when only light fume is generated, further reducing the intake resistance of the first air duct 10 and simultaneously reducing the noise during the filtering and purification of light fume.

[0120] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only an example. The protection scope of the present invention is defined by the appended claims. Without departing from the principles and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An integrated stove and range hood with an internal circulation system, characterized in that, The integrated internal circulation range hood and stove includes: A plurality of relatively independent air ducts, each of which is provided with an intake fan; An oil fume concentration sensor, which is respectively arranged at the air inlets of a plurality of the air ducts. The oil fume concentration sensor is used to measure the corresponding oil fume concentration of the current air duct and compare it with a preset oil fume concentration, and based on the comparison result, turn on or off the intake fan of the corresponding air duct; A filtering part, which is arranged at the air inlet of any one of the plurality of air ducts. The filtering part is slidably arranged along the arrangement direction of the air inlets of the plurality of air ducts. The oil fume concentration sensor measures the corresponding oil fume concentration of the current air duct and compares it with a preset oil fume concentration, and the filtering part moves to the air inlet of the target air duct based on the comparison result.

2. The built-in circulation integrated smoke stove according to claim 1, wherein Among the plurality of air ducts, there are a first air duct and a second air duct. When in the first state and the second state, the intake fan of the first air duct is turned on. Among them, the first state is that the oil fume concentration sensor at the air inlet of the second air duct measures that the current corresponding oil fume concentration is greater than the preset oil fume concentration value and the oil fume concentration sensor at the air inlet of the first air duct measures that the current corresponding oil fume concentration is greater than 0 and less than the preset oil fume concentration value. The second state is that the oil fume concentration sensors at the air inlets of the first air duct and the second air duct measure that the current corresponding oil fume concentrations are both greater than 0 and less than the preset oil fume concentration value; When in the first state, the third state, the fourth state and the fifth state, the intake fan of the second air duct is turned on. Among them, the third state is that the oil fume concentration sensors at the air inlets of the first air duct and the second air duct measure that the current corresponding oil fume concentrations are both greater than the preset oil fume concentration value. The fourth state is that the oil fume concentration sensor at the air inlet of the second air duct measures that the current corresponding oil fume concentration is greater than the preset oil fume concentration value and the oil fume concentration sensor at the air inlet of the first air duct measures that the current corresponding oil fume concentration is 0. The fifth state is that the oil fume concentration sensor at the air inlet of the first air duct measures that the current corresponding oil fume concentration is greater than the preset oil fume concentration value and the oil fume concentration sensor at the air inlet of the second air duct measures that the current corresponding oil fume concentration is less than the preset oil fume concentration value.

3. The integrated inner-circulation smoke stove according to claim 2, wherein The integrated internal circulation range hood and stove further includes a communication channel. One end of the communication channel is communicated with the air inlet of the first air duct, and the other end of the communication channel is communicated with the air inlet of the second air duct. A flow dividing plate and a driving motor are further arranged in the first air duct. The flow dividing plate is arranged between the communication channel and the intake fan of the first air duct. When in the third state, the fourth state and the fifth state, the flow dividing plate closes the first air duct through the driving motor; When in the second state, the intake fan of the second air duct is turned off.

4. The integrated inner-circulation smoke and stove as claimed in claim 3, wherein, The internal circulation smoke and stove integrated machine also includes a slide rail, which extends along the length direction of the internal circulation smoke and stove integrated machine, and the filter part is slidably connected to the slide rail. When in the first state, the second state, the third state and the fourth state, the filter part cover is arranged at the air inlet of the second air duct; When in the fifth state, the filter cover is arranged at the air inlet of the first air duct.

5. The integrated inner-circulation smoke exhaust and cooking range according to claim 4, characterized in that The filter part includes a cover plate, a filter screen and a rotating screen. The cover plate is provided with a slide groove on the side facing the slide rail. The slide rail is provided with a protrusion corresponding to the slide groove. The protrusion cooperates with the slide groove. The rotating screen is embedded in the cover plate, and the filter screen cover is provided on the rotating screen and is arranged away from the slide rail.

6. The built-in circulation integrated smoke stove according to claim 2, characterized in that, The internal circulation smoke and stove integrated machine is provided with air outlets corresponding to the first air duct and the second air duct, and the air outlets are located at both end surfaces of the internal circulation smoke and stove integrated machine along the length direction.

7. The built-in circulation integrated smoke stove according to claim 6, wherein, The first air duct also includes an exhaust fan, a filter, activated carbon and a guide plate. The air intake fan and the exhaust fan of the first air duct are arranged in sequence along the extension direction of the first air duct. The air intake fan of the first air duct is located between the air inlet of the first air duct and the exhaust fan. The filter is arranged between the air intake fan and the exhaust fan of the first air duct. The activated carbon is arranged between the exhaust fan and the guide plate. The guide plate is arranged close to the air outlet of the first air duct.

8. The integrated inner-circulation smoke stove according to claim 6, wherein, The second air duct also includes a heating adsorption component, a filtering component, an ozone decomposition component and a guide plate. The air intake fan of the second air duct is arranged close to the air inlet of the second air duct, the guide plate is arranged close to the air outlet of the second air duct, the ozone decomposition component is arranged at the air outlet of the second air duct, the heating adsorption component is arranged between the air intake fan and the filtering component, the filtering component is arranged between the heating adsorption component and the ozone decomposition component, and the guide plate is arranged between the filtering component and the ozone decomposition component.

9. A control method for an integrated internal circulation range hood, the control method for the integrated internal circulation range hood is implemented by the integrated internal circulation range hood according to any one of claims 1-8, characterized in that, The control method of the internal circulation smoke and stove integrated machine comprises the following steps: S10, measuring the current oil fume concentrations corresponding to the first air duct and the second air duct according to the oil fume concentration sensors at the air inlets of the first air duct and the second air duct of the internal circulation smoke and stove integrated machine; S20, determining whether the cooking state at the air inlets of the first air duct and the second air duct falls into any one of the first state, the second state, the third state, the fourth state and the fifth state; S30. Turn on the air intake fan of the first air duct and / or the second air duct according to the cooking state at the air inlets of the first air duct and the second air duct; when the air intake fan of the first air duct is turned on, the exhaust fan of the first air duct is turned on synchronously; when the cooking state at the air inlets of the first air duct and the second air duct is any one of the first state, the third state, the fourth state and the fifth state, the air intake fan of the second air duct is turned on.

10. The control method of the integrated inner circulation smoke stove as claimed in claim 9, characterized in that, Step S30 also includes the following steps: S31. When the cooking state at the air inlets of the first air duct and the second air duct is any one of the first state, the second state, the third state, and the fourth state, slide the filtering part of the integrated internal circulation smoke stove to the air inlet of the second air duct; When the cooking state at the air inlets of the first air duct and the second air duct is the fifth state, slide the filtering part to the air inlet of the first air duct.

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