Smoke stove all-in-one machine and control method thereof

Abstract

The invention discloses a range hood and stove all-in-one machine and a control method thereof. The range hood and stove all-in-one machine comprises an air curtain system, the air curtain system comprises an air curtain fan, an air curtain flow channel connected with the air curtain fan, an air curtain air guide plate arranged in the air curtain flow channel, a left air curtain channel and a right air curtain channel, and kitchen mixed gas enters the air curtain flow channel under the action of the air curtain fan and then is divided through the air curtain air guide plate; part of the kitchen mixed gas enters the left air curtain channel to be sprayed out of the left air curtain channel to form an air curtain, and the other part of the kitchen mixed gas enters the right air curtain channel to be sprayed out of the right air curtain channel to form an air curtain. By adjusting air curtain air distribution of different air curtain flow channels, the smoke gathering effect is optimized, and the smoke sucking effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of kitchen equipment, in particular to a smoke stove integrated machine and a control method thereof. BACKGROUND

[0002] The smoke stove integrated machine is a kitchen appliance integrating the oil fume exhaust and the gas stove. The high-efficiency suction and exhaust system solves the problem of cooking oil fume, and plays a role in removing the cooking oil fume in the kitchen and creating a healthy and comfortable indoor living environment.

[0003] However, in the cooking process, the user will use one of the left and right stoves or both at the same time. The existing smoke stove integrated machine on the market is mostly a smoke collection cavity, and its structure cannot effectively cover the double-stove area. When a single-side stove is used, the oil fume far from the smoke collection cavity will escape due to insufficient negative pressure. When the double stoves are used at the same time, the oil fume diffusion range exceeds the single-cavity coverage capacity, thereby causing about 30% of the oil fume to be unable to be effectively captured, especially not suitable for heavy oil fume cooking scenes such as Chinese stir-frying. SUMMARY

[0004] The present application provides a smoke stove integrated machine and a control method thereof to solve the problem that the current smoke stove integrated machine cannot meet the user's cooking use demand, which easily causes the escape of oil fume.

[0005] According to an aspect of the present application, a smoke stove integrated machine is provided. The smoke stove integrated machine includes a wind curtain system, the wind curtain system including a wind curtain fan, a wind curtain flow channel connected with the wind curtain fan, a wind curtain guide plate arranged inside the wind curtain flow channel, a left wind curtain passage, and a right wind curtain passage. After the kitchen mixed gas enters the wind curtain flow channel under the action of the wind curtain fan, the kitchen mixed gas is split by the wind curtain guide plate, part of the kitchen mixed gas enters the left wind curtain passage to form a wind curtain jetted from the left wind curtain passage, and the other part of the kitchen mixed gas enters the right wind curtain passage to form a wind curtain jetted from the right wind curtain passage.

[0006] Optionally, the wind curtain system further includes a wind curtain partition plate and a guide plate rotating mechanism. The left wind curtain passage and the right wind curtain passage are divided by the wind curtain partition plate. The wind curtain guide plate is connected with the wind curtain partition plate through the guide plate rotating mechanism. The guide plate rotating mechanism drives the wind curtain guide plate to rotate to adjust the opening angle of the wind curtain guide plate.

[0007] Optionally, the wind curtain system further includes a wind curtain left baffle and a wind curtain right baffle.

[0008] The wind curtain airflow jetted from the left wind curtain passage adheres to the wind curtain left baffle.

[0009] The wind curtain airflow jetted from the right wind curtain passage adheres to the wind curtain right baffle.

[0010] Optionally, the wind curtain system further includes a left temperature sensor and a right temperature sensor.

[0011] The left temperature sensor is arranged on one side of the left baffle of the air curtain close to the left cooker, and is used for detecting the temperature of the left pot of the left cooker.

[0012] The right temperature sensor is arranged on one side of the right baffle of the air curtain close to the right cooker, and is used for detecting the temperature of the right pot of the right cooker.

[0013] Optionally, the smoke-cooker integrated machine further comprises a left air duct system and a right air duct system, the left air duct system comprises a left fan, a left air duct filter core, a left air outlet, a left flow channel and a left oil screen, when the left fan starts to work, the oil fume gas enters the left flow channel from the left oil screen, then passes through the left fan and is discharged from the left air outlet through the left air duct filter core;

[0014] The right air duct system comprises a right fan, a right air duct filter core, a right air outlet, a right flow channel and a right oil screen, when the right fan starts to work, the oil fume gas enters the right flow channel from the right oil screen, then passes through the right fan and is discharged from the right air outlet through the right air duct filter core.

[0015] According to another aspect of the present application, a control method of a smoke machine integrated machine is provided, which is applied to the smoke machine according to any of the embodiments of the present application, and the control method of the smoke machine integrated machine comprises:

[0016] obtaining the temperature of the left pot of the left cooker and the temperature of the right pot of the right cooker;

[0017] starting the air curtain fan to make the kitchen mixed gas enter the air curtain flow channel according to the temperature of the left pot and the temperature of the right pot, and rotating the air curtain baffle arranged inside the air curtain flow channel to adjust the air curtain air volume of the air curtain jet from the left air curtain passage and / or the right air curtain passage.

[0018] Optionally, after obtaining the temperature of the left pot of the left cooker and the temperature of the right pot of the right cooker, the control method further comprises:

[0019] if the temperature of the left pot and the temperature of the right pot are both less than or equal to the water vapor generation temperature threshold, the air curtain fan is not started, and it is judged again whether the left cooker and / or the right cooker is in the working state.

[0020] Optionally, starting the air curtain fan to make the kitchen mixed gas enter the air curtain flow channel according to the temperature of the left pot and the temperature of the right pot, and rotating the air curtain baffle arranged inside the air curtain flow channel, comprises:

[0021] if the temperature of the left pot is greater than the water vapor generation temperature and the temperature of the right pot is not greater than the water vapor generation temperature, the air curtain fan is started to make the kitchen mixed gas enter the air curtain flow channel, and the air curtain baffle arranged inside the air curtain flow channel is rotated to the right, so that the left air curtain passage is in the open state and the right air curtain passage is in the closed state;

[0022] If the right-side pot temperature is greater than the water vapor generation temperature and the left-side pot temperature is not greater than the water vapor generation temperature, the air curtain fan is started to make the kitchen mixed gas enter the air curtain flow channel, and the air curtain deflector plate arranged inside the air curtain flow channel is turned to the left to make the left air curtain passage be in a closed state and the right air curtain passage be in an open state.

[0023] If the left-side pot temperature and the right-side pot temperature are both greater than the water vapor generation temperature, the air curtain fan is started to make the kitchen mixed gas enter the air curtain flow channel, and the air curtain deflector plate arranged inside the air curtain flow channel is turned according to the left-side pot temperature and the right-side pot temperature to make the left air curtain passage and the right air curtain passage both be in an open state.

[0024] Optionally, the turning of the air curtain deflector plate arranged inside the air curtain flow channel according to the left-side pot temperature and the right-side pot temperature comprises:

[0025] If the left-side pot temperature is greater than the oil fume generation temperature and the right-side pot temperature is not greater than the oil fume generation temperature, the air curtain deflector plate arranged inside the air curtain flow channel is controlled to be turned to the right by a first angle.

[0026] If the left-side pot temperature is not greater than the oil fume generation temperature and the right-side pot temperature is greater than the oil fume generation temperature, the air curtain deflector plate arranged inside the air curtain flow channel is controlled to be turned to the left by a second angle.

[0027] If the left-side pot temperature and the right-side pot temperature are both greater than the oil fume generation temperature, or the left-side pot temperature and the right-side pot temperature are both not greater than the oil fume generation temperature, the pot temperature ratio is determined according to the left-side pot temperature and the right-side pot temperature, and the air curtain deflector plate arranged inside the air curtain flow channel is turned according to the pot temperature ratio.

[0028] The oil fume generation temperature is greater than the water vapor generation temperature.

[0029] Optionally, the turning of the air curtain deflector plate arranged inside the air curtain flow channel according to the pot temperature ratio comprises:

[0030] If the pot temperature ratio is less than a first temperature ratio, the air curtain deflector plate arranged inside the air curtain flow channel is controlled to be turned to the left by a third angle.

[0031] If the pot temperature ratio is not less than the first temperature ratio and the pot temperature ratio is less than a second temperature ratio, the air curtain deflector plate arranged inside the air curtain flow channel is kept in an initial position.

[0032] If the pot temperature ratio is greater than or equal to the second temperature ratio, the air curtain deflector plate arranged inside the air curtain flow channel is controlled to be turned to the right by a fourth angle.

[0033] The second temperature ratio is greater than 1, and the first temperature ratio is less than 1.

[0034] The technical scheme of the embodiment of the present application is based on the principles of fluid mechanics and mechanical transmission, and the smoke range all-in-one machine comprises an air curtain system, the air curtain system comprises an air curtain fan, an air curtain flow channel connected with the air curtain fan, an air curtain guide plate arranged in the air curtain flow channel, a left air curtain passage and a right air curtain passage, that is, one air curtain flow channel is divided into two air curtain passages, after the kitchen mixed gas enters the air curtain flow channel under the action of the air curtain fan, the kitchen mixed gas is divided by the air curtain guide plate, that is, the air curtain guide plate in the air curtain flow channel is intelligently adjusted to be partially opened or closed, the size of the air curtain is adjusted, and then part of the kitchen mixed gas enters the left air curtain passage to be sprayed from the left air curtain passage to form an air curtain, and another part of the kitchen mixed gas enters the right air curtain passage to be sprayed from the right air curtain passage to form an air curtain, the size distribution of the air volume of the double air curtains is intelligently adjusted, the smoke gathering effect is optimized, and the smoke suction effect is improved.

[0035] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0037] Figure 1 is a structural schematic diagram of a smoke range all-in-one machine provided by the embodiment of the present application;

[0038] Figure 2 is an oil fume internal circulation flow and partial section schematic diagram of a smoke range all-in-one machine provided by the embodiment of the present application;

[0039] Figure 3 is a flow schematic diagram of a control method of a smoke range all-in-one machine provided by the embodiment of the present application;

[0040] Figure 4 is a flow schematic diagram of a control method of a smoke range all-in-one machine provided by the embodiment of the present application;

[0041] In the drawings:

[0042] 100-left air duct system, 110-left air fan, 120-left air duct filter element, 130-left air outlet, 140-left flow channel, 150-left oil screen;

[0043] 200-air curtain system, 210-air curtain fan, 220-air curtain flow channel, 230-air curtain guide plate, 240-left air curtain passage, 250-right air curtain passage;

[0044] 261-air curtain partition plate, 262-guide plate rotating mechanism, 271-left air curtain baffle, 272-right air curtain baffle, 281-left temperature sensor, 282-right temperature sensor;

[0045] 300-right air duct system, 310-right fan, 320-right air duct filter element, 330-right air outlet, 340-right flow channel, 350-right oil screen;

[0046] 41-air curtain air flow formed by spraying from the left air curtain passage 240, 42-kitchen mixed gas generated on the left cooktop side, 43-volcanic air flow on the left cooktop side. DETAILED DESCRIPTION

[0047] In order to make the personnel in the technical field better understand the present application scheme, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0048] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0049] Figure 1 A structural schematic diagram of a smoke range all-in-one machine provided by the embodiments of the present application, Figure 2 An oil fume internal circulation flow and a partial sectional view of a smoke range all-in-one machine provided by the embodiments of the present application, the embodiments can be applicable to the case that a smoke range all-in-one machine with an air curtain flow channel divided into two air curtain passages achieves the best smoke absorption effect.

[0050] As Figure 1 and Figure 2As shown, the smoke range all-in-one machine includes a wind curtain system 200, the wind curtain system 200 includes a wind curtain fan 210, a wind curtain flow channel 220 connected with the wind curtain fan 210, a wind curtain guide plate 230 arranged inside the wind curtain flow channel 220, a left wind curtain passage 240 and a right wind curtain passage 250, after the kitchen mixed gas enters the wind curtain flow channel 220 under the action of the wind curtain fan 210, the kitchen mixed gas is shunted through the wind curtain guide plate 230, part of the kitchen mixed gas enters the left wind curtain passage 240 to form a wind curtain from the left wind curtain passage 240, and another part of the kitchen mixed gas enters the right wind curtain passage 250 to form a wind curtain from the right wind curtain passage 250. Wherein, the kitchen mixed gas is composed of the oil fume gas discharged from the left air outlet 130 through the left air duct filter element 120, the oil fume gas discharged from the right air outlet 330 through the right air duct filter element 320 and the kitchen gas.

[0051] Wherein, by rotating the wind curtain guide plate 230, the opening angle of the wind curtain guide plate 230 is adjusted, the smoke inlet area of the left wind curtain passage 240 and the right wind curtain passage 250 is adjusted, and the air volume of the wind curtain of different sizes is realized.

[0052] Specifically, the wind curtain system 200 further includes a wind curtain partition plate 261 and a guide plate rotating mechanism 262, the left wind curtain passage 240 and the right wind curtain passage 250 are divided by the wind curtain partition plate 261, the wind curtain guide plate 230 is connected with the wind curtain partition plate 261 through the guide plate rotating mechanism 262, the guide plate rotating mechanism 262 drives the wind curtain guide plate 230 to rotate, so as to adjust the opening angle of the wind curtain guide plate 230.

[0053] Continuing to refer to Figure 1 and Figure 2 As shown, the wind curtain system further includes a wind curtain left baffle 271 and a wind curtain right baffle 272, the wind curtain left baffle 271 and the wind curtain partition plate 261 are arranged in parallel to form the left wind curtain passage 240, and the wind curtain right baffle 272 and the wind curtain partition plate 261 are arranged in parallel to form the right wind curtain passage 250. After the kitchen mixed gas enters the wind curtain flow channel 220 under the action of the wind curtain fan 210, the wind curtain guide plate 230 is driven to rotate by the guide plate rotating mechanism 262 to adjust the opening angle α of the wind curtain guide plate 230, so that part of the kitchen mixed gas enters the left wind curtain passage 240 to form a wind curtain from the left wind curtain passage 240, and another part of the kitchen mixed gas enters the right wind curtain passage 250 to form a wind curtain from the right wind curtain passage 250.

[0054] It can be understood that, under the action of the air curtain fan 210, after the kitchen mixed gas enters the air curtain flow channel 220, the air curtain deflector 230 is driven by the air deflector rotating mechanism 262 to rotate to the left to the bottom, that is, the air curtain deflector 230 intersects with the air curtain left baffle 271, and then the kitchen mixed gas cannot enter the left air curtain passage 240, that is, the left air curtain passage 240 is in a closed state, and the right air curtain passage 250 is in an open state. At this time, the kitchen mixed gas enters the right air curtain passage 250 in its entirety, so as to be sprayed out of the right air curtain passage 250 to form an air curtain.

[0055] Similarly, under the action of the air curtain fan 210, after the kitchen mixed gas enters the air curtain flow channel 220, the air curtain deflector 230 is driven by the air deflector rotating mechanism 262 to rotate to the right to the bottom, that is, the air curtain deflector 230 intersects with the air curtain right baffle 272, and then the kitchen mixed gas cannot enter the right air curtain passage 250, that is, the right air curtain passage 250 is in a closed state, and the left air curtain passage 240 is in an open state. At this time, the kitchen mixed gas enters the left air curtain passage 240 in its entirety, so as to be sprayed out of the left air curtain passage 240 to form an air curtain.

[0056] In addition, it should be noted that the initial position of the air curtain deflector 230 is kept on a vertical line with the air curtain partition plate 261, and the air curtain partition plate 261 is perpendicular to the ground. Similarly, the initial position of the air curtain deflector 230 is also perpendicular to the ground.

[0057] Continuing to refer to Figure 2 As can be seen from the air curtain formed by spraying out of the left air curtain passage 240, due to the existence of the Coanda effect, the air curtain flow 41 sprayed out of the left air curtain passage 240 adheres to the air curtain left baffle 271, so as to realize that part of the air flow forms a roll-blow air flow 43 on the left stove side, and forms a blocking barrier with the air curtain left baffle 271, so as to block the kitchen mixed gas 42 generated on the left stove side from running up, thereby improving the effective smoke suction effect on the oil smoke on the left stove side.

[0058] Similarly, as can be seen from the air curtain formed by spraying out of the right air curtain passage 250, due to the existence of the Coanda effect, the air curtain flow sprayed out of the right air curtain passage 250 adheres to the air curtain right baffle 272, so as to realize that part of the air flow forms a roll-blow air flow on the right stove side, and forms a blocking barrier with the air curtain right baffle 272, so as to block the kitchen mixed gas generated on the right stove side from running up, thereby improving the effective smoke suction effect on the oil smoke on the right stove side.

[0059] On the basis of the above, continuing to refer to Figure 1As shown, the air curtain system 200 further comprises a left temperature sensor 281 and a right temperature sensor 282; the left temperature sensor 281 is arranged on the left side of the left air curtain baffle 271 close to the left cooker, and is used to detect the left side pot temperature of the left cooker; the right temperature sensor 282 is arranged on the right side of the right air curtain baffle 272 close to the right cooker, and is used to detect the right side pot temperature of the right cooker.

[0060] The left temperature sensor 281 can detect the left side pot temperature of the left cooker in real time, and the left side pot temperature is taken as the bottom temperature of the left side of the left cooker; the right temperature sensor 282 can detect the right side pot temperature of the right cooker in real time, and the right side pot temperature is taken as the bottom temperature of the right side of the right cooker.

[0061] In this embodiment, according to the left side pot temperature of the left cooker detected by the left temperature sensor 281 and the right side pot temperature of the right cooker detected by the right temperature sensor 282, the air curtain baffle 230 is driven to rotate by the baffle rotating mechanism 262, the opening and closing angle α of the air curtain baffle 230 is adjusted, and different air outlet amounts of the left air curtain passage 240 and the right air curtain passage 250 are realized, so as to provide air curtain with different air amounts when the left cooker and the right cooker produce different oil fume.

[0062] On the basis of the above, continuing to refer to Figure 1 As shown, the smoke-cooker integrated machine further comprises a left air duct system 100 and a right air duct system 300; the left air duct system 100 comprises a left fan 110, a left air duct filter core 120, a left air outlet 130, a left flow channel 140 and a left oil net 150; when the left fan 110 starts to work, the oil fume gas enters the left flow channel 140 from the left oil net 150, and then is discharged from the left air outlet 130 through the left fan 110 and the left air duct filter core 120; further, the oil fume gas discharged from the left air outlet 130 enters the air curtain flow channel 220 under the action of the air curtain fan 210.

[0063] The right air duct system 300 comprises a right fan 310, a right air duct filter core 320, a right air outlet 330, a right flow channel 340 and a right oil net 350; when the right fan 310 starts to work, the oil fume gas enters the right flow channel 340 from the right oil net 350, and then is discharged from the right air outlet 330 through the right fan 310 and the right air duct filter core 320; further, the oil fume gas discharged from the right air outlet 330 enters the air curtain flow channel 220 under the action of the air curtain fan 210.

[0064] It can be understood that the oil fume gas discharged from the left air outlet 130 and the oil fume gas discharged from the right air outlet 330 can enter the air curtain flow channel 220 under the action of the air curtain fan 210. Further, the above-mentioned oil fume gas and the kitchen gas are mixed to obtain the kitchen mixed gas, which enters the air curtain flow channel 220 and is divided by the air curtain guide plate 230, so that the kitchen mixed gas enters the left air curtain passage 240 and / or the right air curtain passage 250 to be sprayed from the left air curtain passage 240 and / or the right air curtain passage 250 to form an air curtain. In the embodiment, the smoke stove integrated machine divides one air curtain flow channel 220 into two air curtain passages, i.e. the left air curtain passage 240 and the right air curtain passage 250. By increasing the air curtain guide plate 230 inside the air curtain flow channel 220 to partially open or close the air curtain flow channel 220, i.e. the left air curtain passage 240 is in an open state or a closed state, and the right air curtain passage 250 is in an open state or a closed state, the negative pressure distribution of the air curtain air outlet is realized, the air curtain flow rate in the area with more oil fume is faster, and thus the best smoke suction effect of the smoke stove integrated machine is realized.

[0065] Based on the same inventive concept, Figure 3 A flow chart of a control method of a smoke stove integrated machine is provided for the embodiments of the present application, which is applied to the smoke stove integrated machine of any embodiment of the present application, as shown in the figure, the control method of the smoke stove integrated machine comprises the following steps. Figure 3 The control method of the smoke stove integrated machine comprises the following steps.

[0066] S110, acquiring the left side pot temperature of the left cooktop and the right side pot temperature of the right cooktop.

[0067] Wherein, the skilled in the art can know that the air volume of the air curtain fan is constant, one air curtain fan corresponds to two cooktops of the left cooktop and the right cooktop, and the oil fume amount generated by the left cooktop and the right cooktop is different for different cooking scenes. In order to ensure the smoke gathering effect of the air curtain, the control method of the smoke stove integrated machine provided by the embodiment is used to reasonably control the different air curtain air volume distribution of the left cooktop and the right cooktop, so as to realize the optimal smoke suction effect.

[0068] In the embodiment, the left temperature sensor arranged on the side of the left air curtain baffle close to the left cooktop detects the left side pot temperature of the left cooktop in real time, and the right temperature sensor arranged on the side of the right air curtain baffle close to the right cooktop detects the right side pot temperature of the right cooktop in real time. That is, the air volume of the air curtain formed by the left side pot temperature and the right side pot temperature is adjusted in real time, so as to realize the best smoke suction effect of the smoke stove integrated machine.

[0069] For example, if it is determined that the left cooking appliance produces oil fume based on the temperature of the left pot and that the right cooking appliance produces oil fume based on the temperature of the right pot, but the amount of oil fume produced on the left cooking appliance side is small and the amount of oil fume produced on the right cooking appliance side is large, the air curtain baffle is driven to rotate to the left by a certain angle by the baffle rotating mechanism, that is, the smoke inlet area of the left air curtain passage is reduced and the smoke inlet area of the right air curtain passage is increased, so as to intelligently adjust the air volume distribution of the double air curtains and optimize the smoke collection effect to meet the oil fume suction. Similarly, if neither the left cooking appliance nor the right cooking appliance produces oil fume, or if both the left cooking appliance and the right cooking appliance produce oil fume, the air curtain baffle arranged inside the air curtain flow channel can be controlled to remain at the initial position.

[0070] On the basis of the above, after obtaining the temperature of the left pot of the left cooking appliance and the temperature of the right pot of the right cooking appliance, it can be determined whether the left cooking appliance and the right cooking appliance are in a working state based on the temperature of the left pot and the temperature of the right pot, and when the left cooking appliance and / or the right cooking appliance is in a working state, it is further determined whether the left cooking appliance and / or the right cooking appliance provides an air curtain function.

[0071] Specifically, if the temperature of the left pot and the temperature of the right pot are both less than or equal to the water vapor generation temperature threshold, that is, no water vapor and oil fume is produced in the left pot and the right pot of the left cooking appliance and the right cooking appliance at this time, the left cooking appliance and / or the right cooking appliance is not in a working state, or the left cooking appliance and / or the right cooking appliance is in a working state, but the temperature of the left pot and the temperature of the right pot corresponding to the left cooking appliance and / or the right cooking appliance does not reach the water vapor generation temperature threshold. It is known that in the above case, the air curtain fan does not need to be started, and it is further determined whether the left cooking appliance and / or the right cooking appliance is in a working state.

[0072] The water vapor generation temperature threshold is a temperature threshold for determining whether water vapor is generated in the pot of the cooking appliance. The water vapor generation temperature threshold can be determined according to the temperature at which the cooking appliance generates water vapor in a working state. The specific value of the water vapor generation temperature threshold is not specially limited in this embodiment.

[0073] S120, start the air curtain fan according to the temperature of the left pot and the temperature of the right pot to make the kitchen mixed gas enter the air curtain flow channel, and rotate the air curtain baffle arranged inside the air curtain flow channel to adjust the air curtain volume of the air curtain formed by the left air curtain passage and / or the right air curtain passage.

[0074] On the basis, if the left pot temperature is greater than the water vapor generation temperature, and the right pot temperature is not greater than the water vapor generation temperature, it indicates that the left stove pot produces water vapor, and the right stove pot does not produce water vapor and oil fume, so the air curtain fan is started to make the kitchen mixed gas enter the air curtain flow channel, and the air curtain guide plate arranged inside the air curtain flow channel is turned to the right until the air curtain guide plate intersects with the air curtain right baffle, and the kitchen mixed gas cannot enter the right air curtain passage, so that the left air curtain passage is in an open state, and the right air curtain passage is in a closed state. Further, the left pot temperature and the right pot temperature are continuously detected, and after returning to step S110, whether the left stove pot and the right stove pot produce water vapor and oil fume is judged again according to the left pot temperature and the right pot temperature, so that the oil fume condition of the smoke stove integrated machine is detected and adjusted in real time, and the optimal smoke absorption effect is ensured.

[0075] If the right pot temperature is greater than the water vapor generation temperature, and the left pot temperature is not greater than the water vapor generation temperature, it indicates that the right stove pot produces water vapor, and the left stove pot does not produce water vapor and oil fume, so the air curtain fan is started to make the kitchen mixed gas enter the air curtain flow channel, and the air curtain guide plate arranged inside the air curtain flow channel is turned to the left until the air curtain guide plate intersects with the air curtain left baffle, and the kitchen mixed gas cannot enter the left air curtain passage, so that the left air curtain passage is in a closed state, and the right air curtain passage is in an open state. Further, the left pot temperature and the right pot temperature are continuously detected, and after returning to step S110, whether the left stove pot and the right stove pot produce water vapor and oil fume is judged again according to the left pot temperature and the right pot temperature, so that the oil fume condition of the smoke stove integrated machine is detected and adjusted in real time, and the optimal smoke absorption effect is ensured.

[0076] If the left pot temperature and the right pot temperature are both greater than the water vapor generation temperature, it indicates that the left stove pot and the right stove pot both produce water vapor, so the air curtain fan is started to make the kitchen mixed gas enter the air curtain flow channel, and further, whether the left stove pot and the right stove pot produce oil fume is determined according to the left pot temperature and the right pot temperature, based on which, the air curtain guide plate arranged inside the air curtain flow channel is turned, so that the kitchen mixed gas can enter the left air curtain passage and the right air curtain passage, that is, both the left air curtain passage and the right air curtain passage are in an open state.

[0077] Specifically, if the left pot temperature is greater than the oil fume generation temperature and the right pot temperature is not greater than the oil fume generation temperature, it indicates that the left stove pot produces oil fume and the right stove pot only produces water vapor, and no oil fume is produced, so the wind curtain guide vane arranged inside the wind curtain flow channel is controlled to rotate from the initial position to the right by a first angle to more reasonably control the distribution of different demands of the left stove and the right stove for the wind curtain air volume. The first angle is an angle movement suitable for the required wind curtain air volume demand of the left stove pot producing oil fume at this time. Further, the left pot temperature and the right pot temperature are continuously detected, and after returning to step S110, whether the left stove pot and the right stove pot produce water vapor and oil fume is judged again according to the left pot temperature and the right pot temperature, so as to realize real-time detection and adjustment of the oil fume condition of the smoke stove integrated machine and ensure optimal smoke suction effect.

[0078] If the left pot temperature is not greater than the oil fume generation temperature and the right pot temperature is greater than the oil fume generation temperature, it indicates that the right stove pot produces oil fume and the left stove pot only produces water vapor, and no oil fume is produced, so the wind curtain guide vane arranged inside the wind curtain flow channel is controlled to rotate from the initial position to the left by a second angle to more reasonably control the distribution of different demands of the left stove and the right stove for the wind curtain air volume. The second angle is an angle movement suitable for the required wind curtain air volume demand of the right stove pot producing oil fume at this time. Further, the left pot temperature and the right pot temperature are continuously detected, and after returning to step S110, whether the left stove pot and the right stove pot produce water vapor and oil fume is judged again according to the left pot temperature and the right pot temperature, so as to realize real-time detection and adjustment of the oil fume condition of the smoke stove integrated machine and ensure optimal smoke suction effect.

[0079] If the left pot temperature and the right pot temperature are both greater than the oil fume generation temperature, it indicates that the left stove pot and the right stove pot both produce oil fume, or the left pot temperature and the right pot temperature are both not greater than the oil fume generation temperature, it indicates that the left stove pot and the right stove pot both only produce water vapor, so the pot temperature ratio is determined according to the left pot temperature and the right pot temperature, and further, the wind curtain guide vane arranged inside the wind curtain flow channel is rotated according to the pot temperature ratio.

[0080] Wherein, the oil fume generation temperature is greater than the water vapor generation temperature, the oil fume generation temperature is a temperature threshold value that can determine whether the pot on the stove produces oil fume, and the oil fume generation temperature can be determined according to the temperature at which the stove produces oil fume in the working state. The specific value of the oil fume generation temperature is not specially limited in this embodiment.

[0081] Further, if the pot temperature ratio is less than the first temperature ratio, it indicates that the oil fume or water vapor in the left stove pot is smaller, and the oil fume or water vapor in the right stove pot is larger, so the wind curtain baffle arranged inside the wind curtain flow channel is controlled to rotate to the side with smaller oil fume or water vapor, that is, the wind curtain baffle is controlled to rotate to the left by a third angle, so that the wind curtain air volume of the right wind curtain passage is greater than that of the left wind curtain passage, and the outlet air speed of the right wind curtain passage is greater than that of the left wind curtain passage, so as to reasonably control the distribution of different demands of the left stove and the right stove for the wind curtain air volume, improve the smoke gathering effect of the side with larger oil fume, and the third angle is an angle movement suitable for the wind curtain air volume demand required by the oil fume or water vapor generated in the left stove pot at this time.

[0082] If the pot temperature ratio is not less than the first temperature ratio and is less than the second temperature ratio, it indicates that the oil fume or water vapor in the left stove pot and the right stove pot is about the same, that is, the oil fume or water vapor in the left stove pot and the right stove pot is within a controllable fluctuation range, so the wind curtain baffle arranged inside the wind curtain flow channel can be controlled to remain in the initial position.

[0083] If the pot temperature ratio is greater than or equal to the second temperature ratio, it indicates that the oil fume or water vapor in the right stove pot is smaller, and the oil fume or water vapor in the left stove pot is larger, so the wind curtain baffle arranged inside the wind curtain flow channel is controlled to rotate to the side with smaller oil fume or water vapor, that is, the wind curtain baffle is controlled to rotate to the right by a fourth angle, so that the wind curtain air volume of the left wind curtain passage is greater than that of the right wind curtain passage, and the outlet air speed of the left wind curtain passage is greater than that of the right wind curtain passage, so as to reasonably control the distribution of different demands of the left stove and the right stove for the wind curtain air volume, improve the smoke gathering effect of the side with larger oil fume, and the fourth angle is an angle movement suitable for the wind curtain air volume demand required by the oil fume or water vapor generated in the right stove pot at this time.

[0084] Wherein, the second temperature ratio i2 is greater than 1, and the first temperature ratio i1 is less than 1, and the first temperature ratio i1 and the second temperature ratio i2 can be selected and set according to the critical value of the rotation of the wind curtain baffle, and the specific values of the first temperature ratio i1 and the second temperature ratio i2 are not specially limited in this embodiment.

[0085] The pot temperature ratio i can be calculated by the following formula, specifically: i = (C1-∆C) / (C2-∆C), wherein C1 is the left pot temperature, C2 is the right pot temperature, and ∆C is the temperature constant.

[0086] On the basis of the above, after the wind curtain deflector plate arranged inside the wind curtain flow channel is controlled to rotate to the left by a third angle, remain at the initial position or rotate to the right by a fourth angle, the left-side pot temperature and the right-side pot temperature are continuously detected, the step S110 is executed again, and then it is judged again according to the left-side pot temperature and the right-side pot temperature whether water vapor and oil fume are generated in the left cooktop pot and the right cooktop pot, so that the oil fume condition of the smoke stove integrated machine is detected in real time and adjusted, and the optimal smoke suction effect is ensured.

[0087] The technical scheme of the embodiment of the application is applied to the smoke stove integrated machine of any embodiment of the application, and the control method of the smoke stove integrated machine comprises the following steps: obtaining a left-side pot temperature of a left cooktop and a right-side pot temperature of a right cooktop; starting a wind curtain fan to make kitchen mixed gas enter a wind curtain flow channel according to the left-side pot temperature and the right-side pot temperature, and rotating a wind curtain deflector plate arranged inside the wind curtain flow channel to adjust a wind curtain air volume of the wind curtain sprayed from a left wind curtain passage and / or a right wind curtain passage. The application solves the problem that the current smoke stove integrated machine cannot meet the cooking use requirements of a user and is prone to causing the escape of oil fume, and realizes the adjustment of the corresponding wind curtain air volume according to the different pot temperatures, the optimization of the smoke collection effect and the improvement of the smoke suction effect.

[0088] Based on the same inventive concept, Figure 4 A flow chart of the control method of the smoke stove integrated machine is provided for the embodiment of the application, and the embodiment provides an alternative implementation mode on the basis of the above embodiment. As shown in the figure, the control method of the smoke stove integrated machine comprises the following steps: Figure 4

[0089] S210, turn on the smoke stove integrated machine.

[0090] As known by those skilled in the art, turning on the smoke stove integrated machine can be starting the smoke stove integrated machine, i.e. ventilation or power on, rather than the working condition of the cooktop on the smoke stove integrated machine, so it can be further judged whether the cooktop is in the working state.

[0091] S220, judge whether the left cooktop and / or the right cooktop is in the working state, if yes, execute step S230, and if no, execute step S222.

[0092] S222, control the smoke stove integrated machine to stop.

[0093] Specifically, if it is judged that the left cooktop and the right cooktop are not in the working state, the smoke stove integrated machine is controlled to stop.

[0094] S230, obtain the left-side pot temperature of the left cooktop and the right-side pot temperature of the right cooktop.

[0095] ​Specifically, if it is determined that the left cooker is in the working state and the right cooker is not in the working state, the left-side pot temperature of the left cooker is obtained; or, if it is determined that the right cooker is in the working state and the left cooker is not in the working state, the right-side pot temperature of the right cooker is obtained; or, if it is determined that the left cooker and the right cooker are both in the working state, the left-side pot temperature of the left cooker and the right-side pot temperature of the right cooker are obtained.

[0096] S240, it is determined whether the left-side pot temperature and / or the right-side pot temperature is greater than the water vapor generation temperature threshold value, if yes, step S251 or step S252 or step S253 is executed, if not, step S241 is executed.

[0097] S241, the air curtain fan is not started.

[0098] Specifically, if it is determined that the left-side pot temperature and / or the right-side pot temperature is not greater than the water vapor generation temperature threshold value, the air curtain fan is not started.

[0099] Further, after the air curtain fan is not started, step S220 is executed again, and it is determined again whether the left cooker and / or the right cooker is in the working state.

[0100] S251, if the left-side pot temperature is greater than the water vapor generation temperature and the right-side pot temperature is not greater than the water vapor generation temperature, the air curtain fan is started to make the kitchen mixed gas enter the air curtain flow channel, and the air curtain guide plate arranged inside the air curtain flow channel is rotated to the right to make the left air curtain passage be in the open state and the right air curtain passage be in the closed state.

[0101] On the basis of the above, after step S251 is executed, the left-side pot temperature and the right-side pot temperature can be detected again, and after step S230 is executed again, it is determined again according to the left-side pot temperature and the right-side pot temperature whether water vapor and oil fume are generated in the left cooker pot and the right cooker pot, so as to realize real-time detection and adjustment of the oil fume situation of the smoke-cooker integrated machine and ensure optimal smoke absorption effect.

[0102] S252, if the right-side pot temperature is greater than the water vapor generation temperature and the left-side pot temperature is not greater than the water vapor generation temperature, the air curtain fan is started to make the kitchen mixed gas enter the air curtain flow channel, and the air curtain guide plate arranged inside the air curtain flow channel is rotated to the left to make the left air curtain passage be in the closed state and the right air curtain passage be in the open state.

[0103] On the basis of the above, after step S252 is executed, the left-side pot temperature and the right-side pot temperature can be detected again, and after step S230 is executed again, it is determined again according to the left-side pot temperature and the right-side pot temperature whether water vapor and oil fume are generated in the left cooker pot and the right cooker pot, so as to realize real-time detection and adjustment of the oil fume situation of the smoke-cooker integrated machine and ensure optimal smoke absorption effect.

[0104] S253, if both the left side pot temperature and the right side pot temperature are greater than the water vapor generation temperature, then start the air curtain fan to make the kitchen mixed gas enter the air curtain flow channel.

[0105] Further, start the air curtain fan to make the kitchen mixed gas enter the air curtain flow channel, and rotate the air curtain guide plate arranged inside the air curtain flow channel according to the left side pot temperature and the right side pot temperature, so that both the left air curtain passage and the right air curtain passage are in an open state.

[0106] S261, if the left side pot temperature is greater than the oil fume generation temperature, and the right side pot temperature is not greater than the oil fume generation temperature, then control the air curtain guide plate arranged inside the air curtain flow channel to rotate to the right by a first angle.

[0107] Since q=AV, q is the air curtain air volume, A is the cross-sectional area of the air curtain flow channel, and V is the air speed of the air curtain flow channel, when the oil fume concentration is large, if the smoke suction effect needs to be improved, the air inlet speed is increased, that is, the cross-sectional area A of the air curtain flow channel is reduced, and the air speed V of the air curtain flow channel is increased accordingly, so that the oil fume escape is reduced, and the smoke suction effect is improved. It can be known that since the cross-sectional area A of the air curtain flow channel is a constant value, the air curtain air volume q is positively correlated with the air speed V of the air curtain flow channel.

[0108] Based on this, if the left side pot temperature C1 is greater than the oil fume generation temperature T1, and the right side pot temperature C2 is not greater than the oil fume generation temperature T1, then the first angle by which the air curtain guide plate rotates to the right can be calculated based on the following formula , specifically:

[0109] ;

[0110] ;

[0111] Wherein, C1 is the left side pot temperature; C2 is the right side pot temperature; ∆C is the temperature constant; S is the cross-sectional width of the air curtain flow channel; l is the length of the air curtain guide plate; and d is the harmonic coefficient of water vapor and oil fume.

[0112] On the basis of the above, after step S261 is executed, the left side pot temperature and the right side pot temperature can be detected again, and after returning to step S230, whether water vapor and oil fume are generated in the left cooktop pot and the right cooktop pot is judged again according to the left side pot temperature and the right side pot temperature, so that the oil fume condition of the smoke stove integrated machine is detected and adjusted in real time, and the optimal smoke suction effect is ensured.

[0113] S262, if the left side pot temperature is not greater than the oil fume generation temperature, and the right side pot temperature is greater than the oil fume generation temperature, then control the air curtain guide plate arranged inside the air curtain flow channel to rotate to the left by a second angle.

[0114] Based on this, if the left pot temperature C1 is not greater than the oil fume generation temperature T1 and the right pot temperature C2 is greater than the oil fume generation temperature T1, the second angle of rotation of the air curtain guide plate to the left can be calculated based on the following formula , specifically:

[0115] ;

[0116] .

[0117] On the basis of the above, after step S262 is executed, the left pot temperature and the right pot temperature can be detected again, and after step S230 is returned, it is judged again whether water vapor and oil fume are generated in the left and right cookers according to the left pot temperature and the right pot temperature, so as to realize real-time detection and adjustment of the oil fume condition of the smoke stove integrated machine and ensure the optimal smoke absorption effect.

[0118] S263, if the left pot temperature and the right pot temperature are both greater than the oil fume generation temperature, or the left pot temperature and the right pot temperature are both not greater than the oil fume generation temperature, the pot temperature ratio is determined according to the left pot temperature and the right pot temperature.

[0119] Wherein, the oil fume generation temperature is greater than the water vapor generation temperature. Further, the air curtain guide plate arranged inside the air curtain flow channel is rotated according to the pot temperature ratio.

[0120] S271, if the pot temperature ratio is less than the first temperature ratio, the air curtain guide plate arranged inside the air curtain flow channel is controlled to rotate to the left by a third angle.

[0121] On the basis of the above, if the pot temperature ratio i is less than the first temperature ratio i1, the third angle of rotation of the air curtain guide plate to the left can be calculated based on the following formula , specifically:

[0122] ;

[0123] .

[0124] S272, if the pot temperature ratio is not less than the first temperature ratio and the pot temperature ratio is less than the second temperature ratio, the air curtain guide plate arranged inside the air curtain flow channel is controlled to remain in the initial position.

[0125] S273, if the pot temperature ratio is greater than or equal to the second temperature ratio, the air curtain guide plate arranged inside the air curtain flow channel is controlled to rotate to the right by a fourth angle.

[0126] Wherein, the second temperature ratio is greater than 1, and the first temperature ratio is less than 1.

[0127] On the basis of the above, if the temperature ratio i of the pot is greater than or equal to the second temperature ratio i2, the fourth angle of the wind curtain guide plate turning to the right can be calculated based on the following formula , specifically:

[0128] ;

[0129] .

[0130] On the basis of the above, after the steps S271, S272 and S273 are executed, the left pot temperature and the right pot temperature can be detected again, and after the step S220 is returned to be executed, it is judged again whether the water vapor and the oil fume are generated in the left and right cookers according to the left pot temperature and the right pot temperature, so that the oil fume condition of the smoke oven integrated machine is detected and adjusted in real time, and the optimal smoke absorption effect is ensured.

[0131] It should be understood that the various forms of the flow shown above can be used to reorder, add or delete steps. For example, each step described in the present application can be executed in parallel, sequentially or in a different order, as long as the desired results of the technical solutions of the present application can be achieved, which is not limited herein.

[0132] The above specific embodiments do not constitute a limitation on the scope of protection of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A range hood and cooktop combo unit, characterized in that, The integrated range hood and cooktop includes an air curtain system, which comprises an air curtain fan, an air curtain channel connected to the air curtain fan, an air curtain guide plate disposed inside the air curtain channel, a left air curtain channel, and a right air curtain channel. Kitchen mixed gas enters the air curtain channel under the action of the air curtain fan and is then diverted by the air curtain guide plate. Part of the kitchen mixed gas enters the left air curtain channel and is ejected from the left air curtain channel to form an air curtain, while the other part of the kitchen mixed gas enters the right air curtain channel and is ejected from the right air curtain channel to form an air curtain.

2. The integrated range hood and cooktop according to claim 1, characterized in that, The air curtain system also includes an air curtain partition and an air guide plate rotation mechanism. The left air curtain channel and the right air curtain channel are separated by the air curtain partition. The air guide plate is connected to the air curtain partition through the air guide plate rotation mechanism. The air guide plate rotation mechanism drives the air guide plate to rotate so as to adjust the opening and closing angle of the air guide plate.

3. The integrated range hood and cooktop according to claim 1, characterized in that, The air curtain system also includes a left air curtain baffle and a right air curtain baffle; The airflow generated from the left air curtain channel adheres to the left baffle of the air curtain. The airflow generated from the right air curtain channel adheres to the right baffle of the air curtain.

4. The integrated range hood and cooktop unit according to claim 3, characterized in that, The air curtain system also includes a left temperature sensor and a right temperature sensor; The left temperature sensor is located on the side of the left baffle of the air curtain near the left stove, and is used to detect the temperature of the pot on the left side of the left stove; The right temperature sensor is located on the side of the right baffle of the air curtain near the right stove, and is used to detect the temperature of the pot on the right side of the right stove.

5. The integrated range hood and cooktop according to claim 1, characterized in that, The integrated range hood and stove also includes a left air duct system and a right air duct system. The left air duct system includes a left fan, a left air duct filter, a left air outlet, a left flow channel, and a left oil filter. When the left fan starts working, the oil fumes enter the left flow channel through the left oil filter, and then pass through the left fan and the left air duct filter before being discharged from the left air outlet. The right air duct system includes a right fan, a right air duct filter element, a right air outlet, a right flow channel, and a right oil screen. When the right fan starts working, the oil fume gas enters the right flow channel through the right oil screen, passes through the right fan, and is discharged from the right air outlet through the right air duct filter element.

6. A control method for an integrated range hood and dust collector, characterized in that, Applied to any one of the integrated range hoods as described in claims 1-5, the control method of the integrated range hood includes: Get the temperature of the pot on the left side of the left stove and the temperature of the pot on the right side of the right stove; The air curtain fan is activated based on the temperatures of the cookware on the left and right sides to allow the kitchen mixed gas to enter the air curtain channel. The air curtain guide plate installed inside the air curtain channel is rotated to adjust the air volume of the air curtain that is ejected from the left and / or right air curtain channels to form the air curtain.

7. The control method for the integrated range hood according to claim 6, characterized in that, After obtaining the temperature of the left pot on the left stove and the temperature of the right pot on the right stove, the following steps are also included: If the temperatures of both the left and right cookware are less than or equal to the steam generation temperature threshold, the air curtain fan will not be activated, and the left and / or right cookware will be checked again to determine whether they are in operation.

8. The control method for the integrated smoke hood and appliance according to claim 6, characterized in that, The air curtain fan is activated based on the temperatures of the cookware on the left and right sides to allow the mixed gas in the kitchen to enter the air curtain channel, and the air curtain guide plate installed inside the air curtain channel is rotated, including: If the temperature of the left-side cookware is greater than the steam generation temperature, and the temperature of the right-side cookware is not greater than the steam generation temperature, then the air curtain fan is activated to allow the kitchen mixed gas to enter the air curtain channel, and the air curtain guide plate installed inside the air curtain channel is rotated to the right so that the left air curtain channel is in the open state and the right air curtain channel is in the closed state. If the temperature of the right-side cookware is greater than the temperature at which the steam is generated, and the temperature of the left-side cookware is not greater than the temperature at which the steam is generated, then the air curtain fan is activated to allow the kitchen mixed gas to enter the air curtain channel, and the air curtain guide plate located inside the air curtain channel is rotated to the left so that the left air curtain channel is closed and the right air curtain channel is open. If the temperatures of both the left and right cookware are greater than the steam generation temperature, the air curtain fan is activated to allow the kitchen mixed gas to enter the air curtain channel. The air curtain guide plate installed inside the air curtain channel is rotated according to the temperatures of the left and right cookware to ensure that both the left and right air curtain channels are open.

9. The control method for the integrated range hood according to claim 8, characterized in that, The air curtain guide plate, which is rotated inside the air curtain channel according to the temperatures of the left and right pots, includes: If the temperature of the left-side cookware is greater than the temperature at which the fumes are generated, and the temperature of the right-side cookware is not greater than the temperature at which the fumes are generated, then the air curtain guide plate located inside the air curtain channel is controlled to rotate to the right by a first angle. If the temperature of the left-side cookware is not greater than the temperature at which the oil fumes are generated, and the temperature of the right-side cookware is greater than the temperature at which the oil fumes are generated, then the air curtain guide plate located inside the air curtain channel is controlled to rotate to the left by a second angle. If the temperature of the left pot and the temperature of the right pot are both greater than the temperature at which the oil fume is generated, or if the temperature of the left pot and the temperature of the right pot are neither greater than the temperature at which the oil fume is generated, then the pot temperature ratio is determined based on the temperature of the left pot and the temperature of the right pot, and the air curtain guide plate set inside the air curtain channel is rotated according to the pot temperature ratio. The temperature at which the oil fumes are generated is higher than the temperature at which the water vapor is generated.

10. The control method for the integrated smoke hood and appliance according to claim 9, characterized in that, The air curtain guide plate, which rotates within the air curtain channel according to the temperature ratio of the cookware, includes: If the temperature ratio of the cookware is less than the first temperature ratio, the air curtain guide plate set inside the air curtain channel is controlled to rotate to the left by a third angle. If the pot temperature ratio is not less than the first temperature ratio and the pot temperature ratio is less than the second temperature ratio, then the air curtain guide plate set inside the air curtain channel is controlled to remain in the initial position. If the temperature ratio of the cookware is greater than or equal to the second temperature ratio, then the air curtain guide plate set inside the air curtain channel is controlled to rotate to the right by a fourth angle. Wherein, the second temperature ratio is greater than 1, and the first temperature ratio is less than 1.

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