Range hood, range hood control method, device and storage medium

Abstract

The present application relates to a range hood, a control method, a device and a storage medium for the range hood, comprising: a turbine and a first turbine cover and a second turbine cover on the oil fume inlet of the turbine for shielding the oil fume inlet; a first sensor and a second sensor installed outside the range hood body near the oil fume source for detecting oil fume, the first sensor being on the first turbine cover side and the second sensor being on the second turbine cover side; a controller connected to the first sensor and the second sensor for sending control instructions according to the oil fume; a first motor connected to the first turbine cover and the controller for controlling the state of the first turbine cover according to the control instructions; a second motor connected to the second turbine cover and the controller for controlling the state of the second turbine cover according to the control instructions; wherein one of the two turbine covers is in a state of not shielding the oil fume inlet and the other is in a state of shielding the oil fume inlet. The use of the range hood can improve the oil fume absorption effect while avoiding noise and power consumption increase.

Description

Technical Field

[0001] The present application relates to the technical field of range hoods, and in particular to a range hood, a control method, a device and a storage medium for the range hood. Background Art

[0002] Range hoods are also called exhaust hoods, including side-suction range hoods and top-suction range hoods. They are kitchen appliances that purify the kitchen environment. Most of the current side-suction range hoods use a single turbine structure. However, the oil fume extraction effect of a single turbine is weaker than that of a double turbine. In order to improve the oil fume extraction effect, existing manufacturers will increase the exhaust volume of the range hood.

[0003] However, due to the influence of installation location, room ventilation, pipe size, etc., the exhaust volume of the range hood is not equal to the actual use effect after installation. Increasing the exhaust volume will also lead to increased noise and power consumption. In addition, most existing stoves are double-burner structures, and the range hood is usually installed in the middle, so that the generated oil smoke can only enter from the side of the oil net, resulting in insufficient suction and reduced oil smoke extraction effect. Summary of the invention

[0004] In view of the problem that when a single stove is working, increasing the exhaust volume leads to increased noise, increased power consumption and insufficient suction, the present invention proposes a range hood, a control method, a device and a storage medium for the range hood. The range hood can achieve the technical effect of improving the oil fume suction effect while avoiding increased noise and increased power consumption when a single stove is working.

[0005] A range hood, comprising:

[0006] Range hood body;

[0007] a turbine disposed inside the range hood body;

[0008] a first turbine cover and a second turbine cover disposed on the oil fume inlet of the turbine, wherein the first turbine cover and the second turbine cover are used to cover the oil fume inlet of the turbine;

[0009] A first sensor and a second sensor are arranged outside the range hood body near the oil smoke source, the first sensor is located on the first turbine cover side, and the second sensor is located on the second turbine cover side, for detecting the oil smoke state;

[0010] A controller connected to the first sensor and the second sensor, used to send control instructions according to the oil smoke states detected by the first sensor and the second sensor respectively;

[0011] a first motor connected to the first turbine cover and the controller, and used to control the state of the first turbine cover according to the control instruction;

[0012] A second motor connected to the second turbine cover and the controller is used to control the state of the second turbine cover according to the control instruction; wherein, one state of the first turbine cover and the second turbine cover is not covering the oil fume inlet, and the other state is covering the oil fume inlet.

[0013] In one embodiment, the turbine comprises a first turbine and a second turbine, and the first turbine and the second turbine are controlled by the same turbine motor;

[0014] The first turbine cover is disposed on the oil fume inlet of the first turbine, and is used to cover the oil fume inlet of the first turbine;

[0015] The second turbine cover is arranged on the oil fume inlet of the second turbine, and is used for covering the oil fume inlet of the second turbine.

[0016] In one embodiment, the first sensor and the second sensor are ion detection sensors or infrared sensors.

[0017] In one embodiment, the first turbine cover and the second turbine cover are retractable turbine covers.

[0018] In one embodiment, the first motor rotates according to the control instruction to drive the first turbine cover to retract or expand; the second motor rotates according to the control instruction to drive the second turbine cover to retract or expand.

[0019] In one embodiment, the controller is further configured to send a retraction control instruction to the first motor and an expansion control instruction to the second motor when the first sensor detects oil smoke and the second sensor does not detect oil smoke.

[0020] In one embodiment, the controller is further configured to send an expansion control instruction to the first motor and a contraction control instruction to the second motor when the first sensor does not detect oil smoke but the second sensor detects oil smoke.

[0021] In one embodiment, the first turbine cover and the second turbine cover are equal in size.

[0022] A control method for a range hood, the method comprising:

[0023] determining the state of oil smoke detected by the first sensor and the second sensor;

[0024] According to the oil fume status, control instructions are sent to the first motor and the second motor respectively, and the first motor controls the status of the first turbine cover according to the control instructions, and the second motor controls the status of the second turbine cover according to the control instructions; wherein, one state of the first turbine cover and the second turbine cover is not covering the oil fume inlet, and the other state is covering the oil fume inlet.

[0025] In one embodiment, sending control instructions to the first motor and the second motor respectively according to the oil smoke state, the first motor controlling the state of the first turbine cover according to the control instruction, and the second motor controlling the state of the second turbine cover according to the control instruction, includes:

[0026] When the first sensor detects oil smoke and the second sensor does not detect oil smoke, a contraction control instruction is sent to the first motor corresponding to the first sensor, and the first motor rotates according to the contraction control instruction to drive the first turbine cover to contract, so that the first turbine cover does not cover the oil smoke inlet;

[0027] And, an expansion control instruction is sent to the second motor corresponding to the second sensor, and the second motor rotates according to the expansion control instruction to drive the second turbine cover to expand, so that the second turbine cover covers the oil fume inlet.

[0028] In one embodiment, sending control instructions to the first motor and the second motor respectively according to the oil smoke state, the first motor controls the state of the first turbine cover according to the control instruction, and the second motor controls the state of the second turbine cover according to the control instruction, includes:

[0029] When the first sensor does not detect oil smoke but the second sensor detects oil smoke, an expansion control instruction is sent to the first motor corresponding to the first sensor, and the first motor rotates according to the expansion control instruction to drive the first turbine cover to expand, so that the first turbine cover covers the oil smoke inlet;

[0030] And, a contraction control instruction is sent to the second motor corresponding to the second sensor, and the second motor rotates according to the contraction control instruction to drive the second turbine cover to contract, so that the second turbine cover does not cover the oil fume inlet.

[0031] In one embodiment, determining the oil smoke state detected by the first sensor and the second sensor includes:

[0032] Acquire a first value detected by the first sensor and a second value detected by the second sensor;

[0033] The first value and the second value are compared with preset thresholds respectively to determine the oil smoke state detected by the first sensor and the oil smoke state detected by the second sensor.

[0034] In one embodiment, comparing the first value and the second value with preset thresholds respectively to determine the oil smoke state detected by the first sensor and the oil smoke state detected by the second sensor includes:

[0035] When the first value is less than the preset threshold and the second value is greater than or equal to the preset threshold, it is determined that the first sensor does not detect oil smoke but the second sensor detects oil smoke;

[0036] When the first value is greater than or equal to the preset threshold and the second value is less than the preset threshold, it is determined that the first sensor detects oil smoke and the second sensor does not detect oil smoke.

[0037] A control device for a range hood, the device comprising:

[0038] A determination module, used to determine the oil smoke state detected by the first sensor and the second sensor;

[0039] An instruction sending module is used to send control instructions to the first motor and the second motor respectively according to the oil fume state, and the first motor controls the state of the first turbine cover according to the control instruction, and the second motor controls the state of the second turbine cover according to the control instruction; wherein, one state of the first turbine cover and the second turbine cover is not covering the oil fume inlet, and the other state is covering the oil fume inlet.

[0040] A computer-readable storage medium stores a computer program, wherein the computer program, when executed by a processor, implements the steps of any of the above-mentioned methods for controlling a range hood.

[0041] The range hood, the control method, device and storage medium of the range hood include a first turbine cover and a second turbine cover arranged on the oil fume inlet of the turbine, a first sensor and a second sensor arranged outside the range hood body near the oil fume source for detecting the oil fume state, and the first sensor is located on the first turbine cover side, and the second sensor is located on the second turbine cover side. Then, a controller connected to the first sensor and the second sensor sends control instructions to the first motor connected to the first turbine cover and the second motor connected to the second turbine cover according to the oil fume state, and the states of the first turbine cover and the second turbine cover are controlled by the first motor and the second motor respectively. Since the first turbine cover and the second turbine cover are used to cover the oil fume inlet, and the state of one turbine cover is not covering the oil fume inlet, and the state of the other turbine cover is covering the oil fume inlet, the oil fume inlet that is not blocked can increase the pressure and increase the suction force. When the double stove is in single stove operation, the suction force is enhanced in a targeted manner without changing the exhaust volume, and the oil fume suction effect can be improved while avoiding the increase of noise and power consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a schematic plan view of a range hood in one embodiment;

[0043] Figure 2 is a schematic flow chart of a control method for a range hood in one embodiment;

[0044] Figure 3 is a flow chart of a control method for a range hood in another embodiment;

[0045] Figure 4 FIG. 4 is a structural block diagram of a control device for a range hood in one embodiment. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0047] In one embodiment, a range hood is provided, comprising: a range hood body, a turbine, a first turbine cover, a second turbine cover, a first sensor, a second sensor, a first motor, a second motor, and a controller.

[0048] The turbine is arranged inside the range hood body for absorbing oil smoke. The first turbine cover and the second turbine cover are arranged on the oil smoke inlet of the turbine for covering the oil smoke inlet of the turbine. The first sensor and the second sensor are arranged outside the range hood body at a position close to the oil smoke source for detecting the oil smoke state, which includes two states: oil smoke and no oil smoke. In this embodiment, the first sensor is located on the side of the first turbine cover, and the second sensor is located on the side of the second turbine cover. That is, the first sensor is located relatively close to the first turbine cover, and is mainly used to detect the oil smoke state on the side of the first turbine cover. The second sensor is located relatively close to the second turbine cover, and is mainly used to detect the oil smoke state on the side of the second turbine cover. The first motor is connected to the first turbine cover for controlling the state of the first turbine cover. The second motor is connected to the second turbine cover for controlling the state of the second turbine cover. The state of the turbine cover includes two states: covering the oil smoke inlet and not covering the oil smoke inlet. In this embodiment, at least one of the first turbine cover and the second turbine cover does not cover the oil smoke inlet of the turbine. The first sensor, the second sensor, the first motor and the second motor are all connected to the controller. It should be understood that in order to fully realize the functions of the range hood, the present embodiment should also include a universal fume extraction structure not explicitly shown, such as a switch, an oil net, an oil cup, and the like.

[0049] For example, taking a side-suction range hood as an example, the range hood body includes a panel facing the stove, and the panel includes an upper panel (with operation buttons), an oil screen, and a lower panel from top to bottom. The turbine in this embodiment is arranged inside the oil screen, and the first sensor and the second sensor are arranged on the lower panel. The first sensor is located on the lower panel close to the first turbine cover, and the second sensor is located on the lower panel close to the second turbine cover. Figure 1 As shown, a schematic plan view of a range hood is provided. Figure 1 The upper and lower horizontal lines are the plane dividing lines of the upper panel, the oil net and the lower panel. It can be understood that the upper panel is above the upper horizontal line, the lower panel is below the lower horizontal line, and the position between the upper and lower horizontal lines is the position of the oil net. Figure 1 The oil screen is not shown, but the oil screen is opened. Since the turbine is arranged inside the relative position of the oil screen, the turbine can be directly seen in the plan view after the oil screen is opened. Figure 1 The turbine shown is in a state where the first turbine cover is closed and part of the oil fume inlet is covered. Figure 1 The uncovered part of the oil fume inlet of the turbine is the part covered by the second turbine cover. Figure 1 The second turbine cover is in an open state, and the opened second turbine cover is folded and placed in the upper panel or the lower panel. Since it is blocked by the upper panel or the lower panel, it is not shown in the figure, and it is folded and placed in the upper panel or the lower panel to avoid blocking the air inlet.

[0050] Specifically, since the first sensor and the second sensor detect oil smoke and do not detect oil smoke, the output values ​​are different. For example, when there is no oil smoke, the first sensor and the second sensor maintain a constant equilibrium state, and the output maintains a relatively stable value. When there is oil smoke, the output value changes with the concentration of the oil smoke. Therefore, when the controller receives the values ​​fed back by the first sensor and the second sensor, it can judge the current oil smoke state by the values, that is, whether there is oil smoke at present. Then, the controller sends control instructions to the first motor and the second motor respectively according to the state of the oil smoke. The first motor responds to the control instruction to control the state of the first turbine cover, and the second motor responds to the control instruction to control the state of the second turbine cover. For example, when the control instructions sent by the controller are to open the first turbine cover and close the second turbine cover respectively, the first motor controls the first turbine cover to open according to the control instruction so as not to block the corresponding oil smoke inlet, and the second motor controls the second turbine cover to close according to the control instruction to block the corresponding oil smoke inlet. It should be understood that in this embodiment, opening the turbine cover means setting the state of the turbine cover to a state that does not cover the oil smoke inlet, and closing the turbine cover means setting the state of the turbine cover to a state that covers the oil smoke inlet.

[0051] The above-mentioned range hood comprises a first turbine cover and a second turbine cover arranged on the oil fume inlet of the turbine, a first sensor and a second sensor arranged on the range hood body near the oil fume source for detecting the oil fume state, and the first sensor is located on the first turbine cover side, and the second sensor is located on the second turbine cover side. Then, a controller connected to the first sensor and the second sensor sends control instructions to the first motor connected to the first turbine cover and the second motor connected to the second turbine cover respectively according to the oil fume state, and the states of the first turbine cover and the second turbine cover are controlled respectively by the first motor and the second motor. Since the first turbine cover and the second turbine cover are used to cover the oil fume inlet, and the state of one turbine cover is not covering the oil fume inlet, and the state of the other turbine cover is covering the oil fume inlet, the oil fume inlet that is not blocked can increase the pressure and increase the suction force. When the double stove is in single stove operation, the suction force is enhanced in a targeted manner without changing the exhaust volume, and the oil fume suction effect can be improved while avoiding the increase of noise and power consumption.

[0052] In one embodiment, another range hood is provided, in which a turbine comprises a first turbine and a second turbine.

[0053] The first turbine and the second turbine are both arranged inside the range hood body and are controlled by the same turbine motor. That is, the working states of the first turbine and the second turbine are simultaneously controlled by the same turbine motor. The first turbine cover is arranged on the oil fume inlet of the first turbine, and is used to cover the oil fume inlet of the first turbine. The second turbine cover is arranged on the oil fume inlet of the second turbine, and is used to cover the oil fume inlet of the second turbine.

[0054] Specifically, in this embodiment, a turbine cover blocks the oil fume inlet of a turbine alone, the size of the first turbine cover is equal to the size of the oil fume inlet of the first turbine, and the size of the second turbine cover is equal to the size of the oil fume inlet of the second turbine. The controller sends control instructions to the first motor and the second motor respectively according to the state of the oil fume. The first motor responds to the control instruction to control the state of the first turbine cover, and the second motor responds to the control instruction to control the state of the second turbine cover. For example, when the control instructions sent by the controller are to open the first turbine cover and close the second turbine cover respectively, the first motor controls the first turbine cover to open according to the control instruction, and the oil fume inlet of the first turbine is not covered by the first turbine cover. The second motor controls the second turbine cover to close according to the control instruction, and the oil fume inlet of the second turbine is covered by the second turbine cover. At this time, since the oil fume inlet of the second turbine is covered, the first turbine can increase the pressure and increase the suction force. When the stove corresponding to the first turbine in the double stove works alone, it can achieve targeted enhancement of the suction force of the first turbine without changing the exhaust volume, and improve the oil fume suction effect of the single stove while avoiding the increase of noise and power consumption.

[0055] In one embodiment, the first sensor and the second sensor are both ion detection sensors.

[0056] In one embodiment, the first sensor and the second sensor are both infrared sensors.

[0057] In one embodiment, the first sensor and the second sensor can be any one of an ion detection sensor and an infrared sensor. For example, the first sensor is an ion detection sensor and the second sensor is an infrared sensor. Alternatively, the first sensor is an infrared sensor and the second sensor is an ion detection sensor.

[0058] In one embodiment, the first turbine cover and the second turbine cover are retractable turbine covers. Specifically, the retractable turbine cover means that the turbine cover can realize the two states of opening and closing by retracting and unfolding. Retracting means that the turbine cover is opened and does not cover the oil fume inlet, and unfolding means that the turbine cover is closed and covers the oil fume inlet. That is, when the turbine cover is retracted, it means that the turbine cover is open and does not cover the oil fume inlet. When the turbine cover is unfolded, it means that the turbine cover is closed and covers the oil fume inlet. Figure 1 , Figure 1The turbine in the range hood shown is in a state where the first turbine cover is unfolded to cover part of the oil fume inlet, while the second turbine cover is retracted and folded into the upper panel or the lower panel, which is not shown in the figure.

[0059] In this embodiment, the retractable turbine cover can be folded and placed in a retracted form when the turbine cover does not cover the oil fume inlet, thereby saving the internal space occupied by the turbine cover.

[0060] In one embodiment, when the first turbine cover and the second turbine cover are retractable turbine covers, the first motor rotates according to the control instruction to drive the first turbine cover to retract and expand. The second motor rotates according to the control instruction to drive the second turbine cover to retract and expand. Specifically, when the turbine cover is a retractable flexible turbine cover, the corresponding motor can directly control the retraction and expansion of the turbine cover in a rotation-driven manner.

[0061] In one embodiment, when the first turbine cover and the second turbine cover are retractable turbine covers, the controller is also used to send a retraction control instruction to the first motor and an expansion control instruction to the second motor when the first sensor detects oil smoke and the second sensor does not detect oil smoke.

[0062] Specifically, since the first sensor is located relatively close to the first turbine cover, it is mainly used to detect the oil fume state on the side of the first turbine cover. The second sensor is located relatively close to the second turbine cover, and is mainly used to detect the oil fume state on the side of the second turbine cover. Therefore, when the first sensor detects oil fume and the second sensor does not detect oil fume, it can be determined that there is oil fume on the side of the first turbine cover and there is no oil fume on the side of the second turbine cover. Then, by sending a contraction instruction to the first motor and an expansion instruction to the second motor, the first motor rotates to drive the first turbine cover to contract and the second motor rotates to drive the second turbine cover to expand. The oil fume inlet corresponding to the first turbine cover is opened and the oil fume inlet corresponding to the second turbine cover is covered. Thereby, the pressure of the oil fume inlet corresponding to the first turbine cover is increased and the suction force is increased, so as to achieve a targeted enhancement of the oil fume suction effect to avoid the escape of oil fume and to avoid the increase of exhaust volume and the increase of noise and power consumption.

[0063] For example, taking a double-burner gas stove as an example, since the range hood is usually set in the middle of the double-burner gas stove, when the user only turns on the gas stove located close to the first turbine cover for single-burner cooking, oil smoke is only generated on this side. Furthermore, by contracting the turbine cover corresponding to the working side stove and expanding the turbine cover corresponding to the non-working side, the oil smoke inlet corresponding to the working side can increase the pressure and increase the suction force of the oil smoke on the working side, thereby specifically improving the oil smoke suction effect when the single stove is working and avoiding the increase of noise and power consumption.

[0064] When the turbine includes a first turbine and a second turbine controlled by the same turbine motor, the positions of the two stoves of the double stove correspond to the two turbines. When the user turns on the stove on the first turbine side to work as a single stove, by controlling the first turbine cover not to block the oil fume inlet of the first turbine and controlling the second turbine cover to block the oil fume inlet of the second turbine, the pressure of the first turbine can be increased to increase the suction force to improve the oil fume absorption effect, thereby specifically improving the oil fume absorption effect when working as a single stove and avoiding increasing the exhaust volume to increase noise and power consumption.

[0065] In one embodiment, when the first turbine cover and the second turbine cover are retractable turbine covers, the controller is also used to send an expansion control instruction to the first motor and a retraction control instruction to the second motor when the first sensor does not detect oil smoke but the second sensor detects oil smoke.

[0066] Specifically, similarly, since the first sensor is located relatively close to the first turbine cover, it is mainly used to detect the oil fume state on the side of the first turbine cover. The second sensor is located relatively close to the second turbine cover, and is mainly used to detect the oil fume state on the side of the second turbine cover. Therefore, when the first sensor does not detect oil fume and the second sensor detects oil fume, it can be determined that there is no oil fume on the side of the first turbine cover and there is oil fume on the side of the second turbine cover. Then, by sending an expansion command to the first motor and a contraction command to the second motor, the first motor rotates to drive the first turbine cover to expand and the second motor rotates to drive the second turbine cover to contract. The oil fume inlet corresponding to the first turbine cover is covered and the oil fume inlet corresponding to the second turbine cover is opened. Thereby, the pressure of the oil fume inlet corresponding to the second turbine cover is increased and the suction force is increased, so as to achieve a targeted enhancement of the oil fume suction effect to avoid the escape of oil fume and to avoid the increase of exhaust volume and the increase of noise and power consumption.

[0067] For example, taking a double-burner gas stove as an example, since the range hood is usually set in the middle of the double-burner gas stove. When the user only turns on the gas stove located close to the second turbine cover for single-burner cooking, oil smoke is only generated on this side. Furthermore, by contracting the turbine cover corresponding to the working side stove and unfolding the turbine cover corresponding to the non-working side, the oil smoke inlet corresponding to the working side can increase the pressure and increase the suction force on the oil smoke on the working side, so that when the single stove is working, the oil smoke can be absorbed in a targeted manner to improve the oil smoke absorption effect and avoid increasing the exhaust volume to increase noise and power consumption.

[0068] When the turbine includes a first turbine and a second turbine controlled by the same turbine motor, the positions of the two stoves of the double stove correspond to the two turbines. When the user turns on the stove on the second turbine side to work as a single stove, by controlling the second turbine cover not to block the oil fume inlet of the second turbine and controlling the first turbine cover to block the oil fume inlet of the first turbine, the pressure of the second turbine can be increased to increase the suction force and improve the oil fume absorption effect, thereby specifically improving the oil fume absorption effect when working as a single stove and avoiding increasing the exhaust volume to increase noise and power consumption.

[0069] In one embodiment, when the first turbine cover and the second turbine cover are equal in size. Specifically, when there is only one turbine, the first turbine cover and the second turbine cover are equal in size, and both are half the area of ​​the oil fume inlet of the turbine. When the turbine includes two turbines, the first turbine and the second turbine, the oil fume inlets of the first turbine and the second turbine are equal in size, so the first turbine cover and the second turbine cover are equal in size.

[0070] In one embodiment, Figure 2 As shown, a control method for a range hood is provided, and the method is applied to a controller of a range hood as an example for explanation, and includes the following steps:

[0071] Step S202, determining the oil smoke state detected by the first sensor and the second sensor.

[0072] The first sensor and the second sensor are arranged outside the smoke extractor body at a position close to the oil smoke source, and are used to detect the oil smoke state, which includes two states: the presence of oil smoke and the absence of oil smoke. In this embodiment, the first sensor is located on the first turbine cover side, and the second sensor is located on the second turbine cover side. That is, the first sensor is located relatively close to the first turbine cover, and is mainly used to detect the oil smoke state on the first turbine cover side. The second sensor is located relatively close to the second turbine cover, and is mainly used to detect the oil smoke state on the second turbine cover side.

[0073] Step S204, sending control instructions to the first motor and the second motor respectively according to the oil fume status, the first motor controls the status of the first turbine cover according to the control instructions, and the second motor controls the status of the second turbine cover according to the control instructions; wherein, one state of the first turbine cover and the second turbine cover is not covering the oil fume inlet, and the other state is covering the oil fume inlet.

[0074] Specifically, since the first sensor and the second sensor detect oil smoke and do not detect oil smoke, the output values ​​are different. For example, when there is no oil smoke, the first sensor and the second sensor maintain a balanced state, and the output maintains a relatively stable value. When there is oil smoke, the output value changes with the concentration of the oil smoke. Take the first sensor and the second sensor as ion detection sensors as an example. When there is no oil smoke, a balanced ion flow is maintained in the sensor, and its reference output point maintains a relatively stable potential. When oil smoke occurs, the ion flow in the sensor changes accordingly with the concentration of the oil smoke, and the potential of its reference point also changes accordingly. In this way, the sensor converts the physical quantity into a change in electrical quantity and outputs the changed potential to the connected controller in real time. Therefore, when the controller receives the values ​​fed back by the first sensor and the second sensor, it can judge the current oil smoke state by the values, that is, whether there is oil smoke at present. Then, the controller sends control instructions to the first motor and the second motor respectively according to the state of the oil smoke. The first motor responds to the control instruction to control the state of the first turbine cover, and the second motor responds to the control instruction to control the state of the second turbine cover. For example, when the control instructions sent by the controller are to open the first turbine cover and close the second turbine cover respectively, the first motor controls the first turbine cover to open according to the control instructions, and the second motor controls the second turbine cover to close according to the control instructions. It should be understood that, in this embodiment, opening the turbine cover means setting the state of the turbine cover to a state where the oil fume inlet is not covered, and closing the turbine cover means setting the state of the turbine cover to a state where the oil fume inlet is covered.

[0075] The control method of the above-mentioned range hood controls the first turbine cover and the second turbine cover to be in different states according to the oil fume states actually detected by the first sensor and the second sensor, and the first turbine cover and the second turbine cover are used to cover the oil fume inlet, and the state of one of the turbine covers is not covering the oil fume inlet, and the state of the other turbine cover is covering the oil fume inlet, so that the oil fume inlet that is not blocked can increase the pressure and increase the suction force. When the double stove is in single-stove operation, the suction force is enhanced in a targeted manner without changing the exhaust volume, and the oil fume absorption effect can be improved while avoiding increased noise and increased power consumption.

[0076] In one embodiment, step S204 includes: when the first sensor detects oil smoke and the second sensor does not detect oil smoke, sending a retraction control instruction to the first motor corresponding to the first sensor, and the first motor rotates according to the retraction control instruction to drive the first turbine cover to retract, so that the first turbine cover does not cover the oil smoke inlet; and sending an expansion control instruction to the second motor corresponding to the second sensor, and the second motor rotates according to the expansion control instruction to drive the second turbine cover to expand, so that the second turbine cover covers the oil smoke inlet.

[0077] Specifically, since the first sensor is located relatively close to the first turbine cover, it is mainly used to detect the oil fume state on the side of the first turbine cover. The second sensor is located relatively close to the second turbine cover, and is mainly used to detect the oil fume state on the side of the second turbine cover. Therefore, when the first sensor detects oil fume and the second sensor does not detect oil fume, it can be determined that there is oil fume on the side of the first turbine cover and there is no oil fume on the side of the second turbine cover. Then, by sending a contraction instruction to the first motor and an expansion instruction to the second motor, the first motor rotates to drive the first turbine cover to contract and the second motor rotates to drive the second turbine cover to expand. The oil fume inlet corresponding to the first turbine cover is opened and the oil fume inlet corresponding to the second turbine cover is covered. Thereby, the pressure of the oil fume inlet corresponding to the first turbine cover is increased and the suction force is increased, so as to achieve a targeted enhancement of the oil fume suction effect to prevent the oil fume from escaping.

[0078] For example, taking a double-burner gas stove as an example, since the range hood is usually set in the middle of the double-burner gas stove, when the user only turns on the gas stove located close to the first turbine cover for cooking, oil smoke is only generated on this side. Furthermore, by contracting the turbine cover corresponding to the working side stove and expanding the turbine cover corresponding to the non-working side, the oil smoke inlet corresponding to the working side can increase the pressure and increase the suction force of the oil smoke on the working side, thereby specifically improving the oil smoke suction effect when a single stove is working and avoiding the increase of noise and power consumption.

[0079] When the turbine includes a first turbine and a second turbine controlled by the same turbine motor, the positions of the two stoves of the double stove correspond to the two turbines. When the user turns on the stove on the first turbine side to work as a single stove, by controlling the first turbine cover not to block the oil fume inlet of the first turbine and controlling the second turbine cover to block the oil fume inlet of the second turbine, the pressure of the first turbine can be increased to increase the suction force to improve the oil fume absorption effect, thereby specifically improving the oil fume absorption effect when working as a single stove and avoiding the increase of noise and power consumption.

[0080] In one embodiment, step S204 includes: when the first sensor does not detect oil smoke but the second sensor detects oil smoke, sending an expansion control instruction to the first motor corresponding to the first sensor, and the first motor rotates according to the expansion control instruction to drive the first turbine cover to expand, so that the first turbine cover covers the oil smoke inlet; and sending a contraction control instruction to the second motor corresponding to the second sensor, and the second motor rotates according to the contraction control instruction to drive the second turbine cover to contract, so that the second turbine cover does not cover the oil smoke inlet.

[0081] Specifically, similarly, since the first sensor is located relatively close to the first turbine cover, it is mainly used to detect the oil fume state on the side of the first turbine cover. The second sensor is located relatively close to the second turbine cover, and is mainly used to detect the oil fume state on the side of the second turbine cover. Therefore, when the first sensor does not detect oil fume and the second sensor detects oil fume, it can be determined that there is no oil fume on the side of the first turbine cover and there is oil fume on the side of the second turbine cover. Then, by sending an expansion command to the first motor and a contraction command to the second motor, the first motor rotates to drive the first turbine cover to expand and the second motor rotates to drive the second turbine cover to contract. The oil fume inlet corresponding to the first turbine cover is covered and the oil fume inlet corresponding to the second turbine cover is opened. Thereby, the pressure of the oil fume inlet corresponding to the second turbine cover is increased and the suction force is increased, so as to achieve a targeted enhancement of the oil fume suction effect to prevent the oil fume from escaping.

[0082] For example, taking a double-burner gas stove as an example, since the range hood is usually set in the middle of the double-burner gas stove, when the user only turns on the gas stove located close to the second turbine cover for cooking, oil smoke is only generated on this side. Furthermore, by contracting the turbine cover corresponding to the working side stove and expanding the turbine cover corresponding to the non-working side, the oil smoke inlet corresponding to the working side can increase the pressure to increase the suction force of the oil smoke on the working side, thereby specifically sucking out the oil smoke when a single stove is working and improving the oil smoke suction effect.

[0083] When the turbine includes a first turbine and a second turbine controlled by the same turbine motor, the positions of the two stoves of the double stove correspond to the two turbines. When the user turns on the stove on the second turbine side to work as a single stove, by controlling the second turbine cover not to block the oil fume inlet of the second turbine and controlling the first turbine cover to block the oil fume inlet of the first turbine, the pressure of the second turbine can be increased to increase the suction force to improve the oil fume absorption effect, thereby specifically improving the oil fume absorption effect when working as a single stove and avoiding the increase of noise and power consumption.

[0084] In one embodiment, step S202 includes: obtaining a first value detected by the first sensor and a second value detected by the second sensor; comparing the first value and the second value with preset thresholds respectively to determine the oil fume state detected by the first sensor and the oil fume state detected by the second sensor.

[0085] The first value and the second value are the values ​​fed back by the sensor. When the sensor is an ion detection sensor, the fed back value is the potential. When the sensor is an infrared sensor, the fed back value is the infrared electrical signal value. The preset threshold is a threshold set according to the actual environment of the range hood. By comparing with the threshold, it can be determined whether oil smoke is generated in the environment. For example, in this environment, a value greater than or equal to X indicates that there is oil smoke, and a value less than X indicates that there is no oil smoke, and X is configured as the preset threshold.

[0086] Specifically, when the controller receives the first value and the second value fed back by the first sensor and the second sensor in real time through detection, the controller compares the first value and the second value with the preset threshold values ​​respectively, and determines the oil smoke status on the first sensor side and the second sensor side according to the comparison result.

[0087] In one embodiment, the first value and the second value are compared with preset thresholds respectively to determine the oil smoke state detected by the first sensor and the oil smoke state detected by the second sensor, including: when the first value is less than the preset threshold and the second value is greater than or equal to the preset threshold, it is determined that the first sensor does not detect oil smoke but the second sensor detects oil smoke; when the first value is greater than or equal to the preset threshold and the second value is less than the preset threshold, it is determined that the first sensor detects oil smoke but the second sensor does not detect oil smoke.

[0088] Specifically, when the first value is less than the preset threshold and the second value is greater than or equal to the preset threshold, it means that there is no oil smoke on the side of the first sensor and no oil smoke is detected, but there is oil smoke on the side of the second sensor so oil smoke is detected. When the first value is greater than or equal to the preset threshold and the second value is less than the preset threshold, it means that there is oil smoke on the first sensor so oil smoke is detected, but there is no oil smoke on the side of the second sensor so oil smoke is not detected. It can be understood that when the first sensor detects oil smoke, it means that the stove corresponding to the side of the first sensor is working and producing oil smoke. When the second sensor detects oil smoke, it means that the stove corresponding to the side of the second sensor is working and producing oil smoke.

[0089] In addition, when both the first value and the second value are greater than or equal to the preset threshold, it is determined that both the first sensor and the second sensor have detected oil smoke, that is, when the first value and the second value are greater than or equal to the preset threshold, it means that both sides corresponding to the first sensor and the second sensor have detected oil smoke. When both the first value and the second value are less than the preset threshold, it means that both sides corresponding to the first sensor and the second sensor have no oil smoke.

[0090] In this embodiment, by comparing with a preset threshold value set in the actual environment to determine whether there is oil smoke, the accuracy of detection can be improved.

[0091] In one embodiment, Figure 3 As shown, another control method of a range hood is provided, comprising the following steps:

[0092] Step S301, when the range hood is started, the two retractable turbine covers are controlled to be in a retracted state.

[0093] Specifically, after starting the operation, in order to ensure the normal operation of the oil fume extraction operation, the controller sends a contraction control instruction to the first motor and the second motor. The first motor and the second motor rotate simultaneously to drive the first turbine cover and the second turbine cover to a contracted state without blocking the turbine.

[0094] Step S302, obtaining the first value and the second value of the oil fume detection feedback from the first ion detection sensor and the second ion detection sensor. Specifically, after the range hood is started, the ion detection sensor starts working detection synchronously. The ion detection sensor can detect once at a preset time interval, for example, once every three minutes, and the time can be set according to the time situation. However, in order to prevent the turbine cover from opening and closing frequently, and not to miss the opportunity to absorb oil fume by waiting too long, the time cannot be too short or too long.

[0095] Step S303, compare the first value and the second value with the preset threshold value respectively. When the first value T1 is greater than or equal to the preset threshold value T and the second value T2 is less than the preset threshold value T, that is, T1≥T and T2<T, proceed to step S304. When the first value T1 is less than the preset threshold value T and the second value T2 is greater than or equal to the preset threshold value T, that is, T1<T and T2≥T, proceed to step S305. When the first value T1 and the second value T2 are both greater than or equal to the preset threshold value T, that is, T1≥T and T2≥T, or the first value T1 and the second value T2 are both less than the preset threshold value T, that is, T1<T and T2<T, proceed to step S306.

[0096] Step S304, control the first turbine cover corresponding to the first sensor to shrink, and the second turbine cover corresponding to the second sensor to expand, so as to increase the pressure of the oil fume inlet corresponding to the first turbine cover and increase the suction force when the stove on the side of the first sensor is working alone. Return to step S302, perform the next detection and control until the range hood is shut down.

[0097] Step S305, control the first turbine cover corresponding to the first sensor to expand, and the second turbine cover corresponding to the second sensor to retract, so as to increase the pressure of the oil fume inlet corresponding to the second turbine cover and increase the suction force when the stove on the side of the second sensor is working alone. Return to step S302, perform the next detection and control, until the range hood is shut down.

[0098] Step S306, control the first turbine cover corresponding to the first sensor and the second turbine cover corresponding to the second sensor to shrink, so as to ensure normal fume extraction when the two stoves are working. Return to step S302, perform the next detection and control until the range hood is shut down.

[0099] It should be understood that although Figure 2-3The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, Figure 2-3 At least part of the steps may include multiple steps or multiple stages. These steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed in turn or alternately with other steps or at least part of the steps or stages in other steps.

[0100] In one embodiment, Figure 4 As shown, a control device for a range hood is provided, comprising: a determination module 402 and an instruction sending module 404, wherein:

[0101] The determination module 402 is used to determine the oil smoke state detected by the first sensor and the second sensor.

[0102] The instruction sending module 404 is used to send control instructions to the first motor and the second motor respectively according to the oil fume state, and the first motor controls the state of the first turbine cover according to the control instruction, and the second motor controls the state of the second turbine cover according to the control instruction; wherein, one state of the first turbine cover and the second turbine cover is that the oil fume inlet is not covered, and the other state is that the oil fume inlet is covered.

[0103] In one embodiment, the instruction sending module 404 is also used to send a retraction control instruction to the first motor corresponding to the first sensor when the first sensor detects oil smoke and the second sensor does not detect oil smoke, so that the first motor rotates according to the retraction control instruction to drive the first turbine cover to retract, so that the first turbine cover does not cover the oil smoke inlet; and send an expansion control instruction to the second motor corresponding to the second sensor, so that the second motor rotates according to the expansion control instruction to drive the second turbine cover to expand, so that the second turbine cover covers the oil smoke inlet.

[0104] In one embodiment, the instruction sending module 404 is also used to send an expansion control instruction to the first motor corresponding to the first sensor when the first sensor does not detect oil smoke but the second sensor detects oil smoke, so that the first motor rotates according to the expansion control instruction to drive the first turbine cover to expand, so that the first turbine cover covers the oil smoke inlet; and send a contraction control instruction to the second motor corresponding to the second sensor, so that the second motor rotates according to the contraction control instruction to drive the second turbine cover to contract, so that the second turbine cover does not cover the oil smoke inlet.

[0105] In one embodiment, the determination module 402 is also used to obtain a first value detected by the first sensor and a second value detected by the second sensor; compare the first value and the second value with preset thresholds respectively to determine the oil fume state detected by the first sensor and the oil fume state detected by the second sensor.

[0106] In one embodiment, the determination module 402 is also used to determine that the first sensor does not detect oil smoke but the second sensor detects oil smoke when the first value is less than a preset threshold and the second value is greater than or equal to the preset threshold; when the first value is greater than or equal to the preset threshold and the second value is less than the preset threshold, determine that the first sensor detects oil smoke but the second sensor does not detect oil smoke.

[0107] The specific definition of the range hood control device can be found in the definition of the range hood control method above, which will not be repeated here. Each module in the range hood control device can be implemented in whole or in part by software, hardware, or a combination thereof. Each of the above modules can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each of the above modules.

[0108] In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented:

[0109] determining the state of oil smoke detected by the first sensor and the second sensor;

[0110] Control instructions are sent to the first motor and the second motor respectively according to the oil fume status, and the first motor controls the status of the first turbine cover according to the control instructions, and the second motor controls the status of the second turbine cover according to the control instructions; wherein, one state of the first turbine cover and the second turbine cover is that the oil fume inlet is not covered, and the other state is that the oil fume inlet is covered.

[0111] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: when the first sensor detects oil smoke and the second sensor does not detect oil smoke, a contraction control instruction is sent to the first motor corresponding to the first sensor, and the first motor rotates according to the contraction control instruction to drive the first turbine cover to contract, so that the first turbine cover does not cover the oil smoke inlet; and, an expansion control instruction is sent to the second motor corresponding to the second sensor, and the second motor rotates according to the expansion control instruction to drive the second turbine cover to expand, so that the second turbine cover covers the oil smoke inlet.

[0112] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: when the first sensor does not detect oil smoke but the second sensor detects oil smoke, an expansion control instruction is sent to the first motor corresponding to the first sensor, and the first motor rotates according to the expansion control instruction to drive the first turbine cover to expand, so that the first turbine cover covers the oil smoke inlet; and a contraction control instruction is sent to the second motor corresponding to the second sensor, and the second motor rotates according to the contraction control instruction to drive the second turbine cover to contract, so that the second turbine cover does not cover the oil smoke inlet.

[0113] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: obtaining a first value detected by the first sensor and a second value detected by the second sensor; comparing the first value and the second value with preset thresholds respectively to determine the oil fume state detected by the first sensor and the oil fume state detected by the second sensor.

[0114] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: when the first value is less than a preset threshold and the second value is greater than or equal to the preset threshold, it is determined that the first sensor does not detect oil smoke but the second sensor detects oil smoke; when the first value is greater than or equal to the preset threshold and the second value is less than the preset threshold, it is determined that the first sensor detects oil smoke but the second sensor does not detect oil smoke.

[0115] Those of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0116] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0117] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A range hood, characterized in that: include: The range hood body comprises a panel facing the stove, and the panel comprises an upper panel, an oil screen and a lower panel in order from top to bottom; A turbine is arranged inside the range hood body; the turbine is arranged opposite to the oil screen; a first turbine cover and a second turbine cover disposed on the oil fume inlet of the turbine, wherein the first turbine cover and the second turbine cover are used to cover the oil fume inlet of the turbine; A first sensor and a second sensor are arranged outside the range hood body near the oil smoke source, the first sensor is located on the first turbine cover side, and the second sensor is located on the second turbine cover side, for detecting the oil smoke state; A controller connected to the first sensor and the second sensor, used to send control instructions according to the oil smoke states detected by the first sensor and the second sensor respectively; a first motor connected to the first turbine cover and the controller, and used to control the state of the first turbine cover according to the control instruction; A second motor connected to the second turbine cover and the controller is used to control the state of the second turbine cover according to the control instruction; wherein, one state of the first turbine cover and the second turbine cover is not covering the oil fume inlet, and the other state is covering the oil fume inlet; the first turbine cover and the second turbine cover are retractable turbine covers, and the first turbine cover or the second turbine cover that does not cover the oil fume inlet is folded into the upper panel or the lower panel.

2. The range hood according to claim 1, characterized in that: The turbine comprises a first turbine and a second turbine, wherein the first turbine and the second turbine are controlled by a same turbine motor; The first turbine cover is disposed on the oil fume inlet of the first turbine, and is used to cover the oil fume inlet of the first turbine; The second turbine cover is arranged on the oil fume inlet of the second turbine, and is used for covering the oil fume inlet of the second turbine.

3. The range hood according to claim 1 or 2, characterized in that: The first sensor and the second sensor are ion detection sensors or infrared sensors.

4. The range hood according to claim 2, characterized in that: The oil fume inlets of the first turbine and the second turbine are equal in size.

5. The range hood according to claim 1, characterized in that: The first motor rotates according to the control instruction to drive the first turbine cover to retract or expand; the second motor rotates according to the control instruction to drive the second turbine cover to retract or expand.

6. The range hood according to claim 1, characterized in that: The controller is further configured to send a retraction control instruction to the first motor and an expansion control instruction to the second motor when the first sensor detects oil smoke and the second sensor does not detect oil smoke.

7. The range hood according to claim 1, characterized in that: The controller is further configured to send an expansion control instruction to the first motor and a contraction control instruction to the second motor when the first sensor does not detect oil smoke but the second sensor detects oil smoke.

8. The range hood according to claim 1 or 2, characterized in that: The first turbine cover and the second turbine cover are equal in size.

9. A control method for a range hood, characterized in that: The method is implemented based on the range hood according to any one of claims 1 to 8, comprising: determining the state of oil smoke detected by the first sensor and the second sensor; According to the oil fume status, control instructions are sent to the first motor and the second motor respectively, and the first motor controls the status of the first turbine cover according to the control instructions, and the second motor controls the status of the second turbine cover according to the control instructions; wherein, one state of the first turbine cover and the second turbine cover is not covering the oil fume inlet, and the other state is covering the oil fume inlet.

10. The method according to claim 9, characterized in that The step of sending control instructions to the first motor and the second motor respectively according to the oil smoke state, wherein the first motor controls the state of the first turbine cover according to the control instructions, and the second motor controls the state of the second turbine cover according to the control instructions, comprises: When the first sensor detects oil smoke and the second sensor does not detect oil smoke, a contraction control instruction is sent to the first motor corresponding to the first sensor, and the first motor rotates according to the contraction control instruction to drive the first turbine cover to contract, so that the first turbine cover does not cover the oil smoke inlet; And, an expansion control instruction is sent to the second motor corresponding to the second sensor, and the second motor rotates according to the expansion control instruction to drive the second turbine cover to expand, so that the second turbine cover covers the oil fume inlet.

11. The method according to claim 9, characterized in that The step of sending control instructions to the first motor and the second motor respectively according to the oil smoke state, wherein the first motor controls the state of the first turbine cover according to the control instructions, and the second motor controls the state of the second turbine cover according to the control instructions, comprises: When the first sensor does not detect oil smoke but the second sensor detects oil smoke, an expansion control instruction is sent to the first motor corresponding to the first sensor, and the first motor rotates according to the expansion control instruction to drive the first turbine cover to expand, so that the first turbine cover covers the oil smoke inlet; And, a contraction control instruction is sent to the second motor corresponding to the second sensor, and the second motor rotates according to the contraction control instruction to drive the second turbine cover to contract, so that the second turbine cover does not cover the oil fume inlet.

12. The method according to claim 9, characterized in that The step of determining the oil smoke state detected by the first sensor and the second sensor includes: Acquire a first value detected by the first sensor and a second value detected by the second sensor; The first value and the second value are compared with preset thresholds respectively to determine the oil smoke state detected by the first sensor and the oil smoke state detected by the second sensor.

13. The method according to claim 12, characterized in that The step of comparing the first value and the second value with preset thresholds respectively to determine the oil smoke state detected by the first sensor and the oil smoke state detected by the second sensor includes: When the first value is less than the preset threshold and the second value is greater than or equal to the preset threshold, it is determined that the first sensor does not detect oil smoke but the second sensor detects oil smoke; When the first value is greater than or equal to the preset threshold and the second value is less than the preset threshold, it is determined that the first sensor detects oil smoke and the second sensor does not detect oil smoke.

14. A control device for a range hood, characterized in that: The device is implemented based on the range hood according to any one of claims 1 to 8, comprising: A determination module, used to determine the oil smoke state detected by the first sensor and the second sensor; An instruction sending module is used to send control instructions to the first motor and the second motor respectively according to the oil fume state, and the first motor controls the state of the first turbine cover according to the control instruction, and the second motor controls the state of the second turbine cover according to the control instruction; wherein, one state of the first turbine cover and the second turbine cover is not covering the oil fume inlet, and the other state is covering the oil fume inlet.

15. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 9 to 13 are implemented.

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