CN112984590A

CN112984590A - Range hood control method and device and range hood equipment

Info

Publication number: CN112984590A
Application number: CN202110334757.4A
Authority: CN
Inventors: 蔡真清; 许宁; 李钟毅; 石惠云
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-06-18

Abstract

The application relates to a range hood control method and device and range hood equipment. And when a cleaning instruction is obtained, the cleaning device is controlled to generate a cleaning agent, and the cleaning agent is applied to the cleaning device and/or the fan system. The fan system can suck and exhaust oil smoke, reduce the influence that the oil smoke that the culinary art produced caused to the user, purifier can purify the oil smoke, the atmosphere pollution that the direct exhaust oil smoke of reduction range hood caused, when obtaining clean instruction, can also send clean instruction to belt cleaning device, make belt cleaning device produce the cleaner, clean purifier and/or fan system, be favorable to keeping purifier and fan system's clean state, improve purifier and fan system's working property, thereby range hood's use reliability has been improved.

Description

Range hood control method and device and range hood equipment

Technical Field

The application relates to the technical field of range hoods, in particular to a range hood control method and device and range hood equipment.

Background

The range hood is a kitchen appliance for purifying kitchen environment, is arranged above a kitchen range, can quickly pump away waste burned by the range and oil fume harmful to human bodies generated in the cooking process, and exhaust the oil fume to the outside, condenses and collects the oil fume, reduces pollution, purifies air, has the safety guarantee effects of gas defense and explosion prevention, and is widely applied to daily life of people.

However, more than 300 volatile organic compounds in the kitchen oil smoke are one of the important sources of air pollution, and oil smoke condensate in a high temperature state has strong carcinogenic and mutagenic effects. Therefore, the traditional range hood directly collects oil smoke and then discharges the oil smoke into air, not only can influence the environmental protection, but also can influence the health of people, and therefore the traditional range hood is unreliable in use.

Disclosure of Invention

The invention provides a range hood control method, a range hood control device and range hood equipment aiming at the problem that the traditional range hood is unreliable in use.

A control method of a range hood comprises the following steps:

when a starting-up instruction is obtained, sending a starting signal to a fan system of the range hood; the starting signal is used for controlling the fan system to suck and discharge oil smoke;

sending a purification instruction to a purification device; the purification instruction is used for controlling the purification device to purify the oil smoke;

when a cleaning instruction is acquired, sending the cleaning instruction to a cleaning device; the cleaning instructions are used for controlling the cleaning device to generate cleaning agents and applying the cleaning agents to the purification device and/or the fan system.

A range hood control device comprises an instruction acquisition device, a controller, a purification device and a cleaning device which are arranged on a range hood, wherein the instruction acquisition device, the purification device and the cleaning device are all connected with the controller; the command acquisition device is used for receiving a starting command and/or a cleaning command and sending the received command to the controller, the purification device is used for purifying oil smoke, the cleaning device is used for generating a cleaning agent and applying the cleaning agent to the purification device and/or the fan system, and the controller is used for controlling the range hood according to the method.

A range hood device comprises a range hood and the range hood control device, wherein the range hood control device is arranged on the range hood.

According to the range hood control method, the range hood control device and the range hood equipment, when a starting instruction is obtained, a starting signal is sent to a fan system of the range hood, the starting signal is used for controlling the fan system to suck and exhaust oil smoke, then a purification instruction is sent to the purification device, the purification instruction is used for controlling the purification device to purify the oil smoke, when a cleaning instruction is obtained, the cleaning instruction is sent to the cleaning device, the cleaning instruction is used for controlling the cleaning device to generate cleaning agents, and the cleaning agents are applied to the purification device and/or the fan system. The fan system can suck and exhaust oil smoke, reduce the influence that the oil smoke that the culinary art produced caused to the user, purifier can purify the oil smoke, the atmosphere pollution that the direct exhaust oil smoke of reduction range hood caused, when obtaining clean instruction, can also send clean instruction to belt cleaning device, make belt cleaning device produce the cleaner, clean purifier and/or fan system, be favorable to keeping purifier and fan system's clean state, improve purifier and fan system's working property, thereby range hood's use reliability has been improved.

In one embodiment, the washing device includes a steam generator, a steam pipe and a steam nozzle, the steam generator is connected to the steam nozzle through the steam pipe, the steam generator is connected to the controller, and when a cleaning instruction is obtained, the cleaning instruction is sent to the washing device, including:

when the cleaning instruction is acquired, the cleaning instruction is sent to the steam generator.

In one embodiment, after the step of sending the cleaning instruction to the washing device when the cleaning instruction is obtained, the method further includes:

and sending a rotation instruction to the purification device, wherein the rotation instruction is used for controlling the purification device to rotate.

In one embodiment, the purification apparatus includes a generator, a collector and an auxiliary motor, the generator and the collector are disposed along a wind direction of the range hood, the collector is disposed on a shaft of the auxiliary motor, and the sending of the rotation command to the purification apparatus includes:

sending a first rotation command to the auxiliary motor; the first rotating instruction is used for controlling the auxiliary motor to drive the collector to rotate, so that the collector is thrown away from grease.

and sending a rotation instruction to the fan system, wherein the rotation instruction is used for controlling the fan system to rotate.

In one embodiment, the fan system includes a main motor, a wind wheel, and a volute, the main motor and the wind wheel being disposed in the volute, the wind wheel being disposed on the main motor, and the sending a rotation command to the fan system includes:

and sending a second rotation instruction to the main motor, wherein the second rotation instruction is used for controlling the main motor to drive the wind wheel to rotate so as to throw away grease.

In one embodiment, before the step of sending the cleaning instruction to the washing device when the cleaning instruction is obtained, the method further includes:

and when the cleaning instruction is acquired, controlling the power-off of the purification device.

In one embodiment, the cleaning device comprises a steam generator, a steam pipeline and a steam nozzle, wherein the steam generator is connected with the steam nozzle through the steam pipeline, and the steam generator is connected with the controller.

In one embodiment, the number of the steam nozzles is two or more.

In one embodiment, the purification device comprises a generator, a collector and an auxiliary motor, wherein the generator and the collector are arranged along the wind direction of the range hood, the collector is arranged on a shaft of the auxiliary motor, and the generator, the collector and the auxiliary motor are all connected with the controller.

Drawings

FIG. 1 is a flow chart of a range hood control method according to an embodiment;

FIG. 2 is a flow chart of a range hood control method according to another embodiment;

FIG. 3 is a flow chart of a range hood control method according to another embodiment;

FIG. 4 is a flowchart of a control method of a range hood according to still another embodiment;

FIG. 5 is an exploded view of a range hood apparatus in one embodiment;

FIG. 6 is a schematic view of the overall structure of a range hood apparatus in one embodiment;

FIG. 7 is a cross-sectional view of a range hood apparatus in one embodiment;

FIG. 8 is a cross-sectional view of a range hood apparatus in another embodiment;

FIG. 9 is a schematic view showing the structure of a generator of the purification apparatus according to one embodiment;

FIG. 10 is a schematic view showing the structure of a collector of the purification apparatus according to one embodiment;

fig. 11 is a working principle diagram of the range hood apparatus in one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described more fully below by way of examples in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

In an embodiment, please refer to fig. 1, which provides a range hood control method, where the range hood control method may be executed by a controller, where the controller may adopt a control chip originally provided in the range hood, and add corresponding functions on the original control chip to implement the range hood control method of the present application, so as to save hardware cost. Or, a controller independent of the original range hood can be adopted, the steps of the range hood control method can be executed through the controller, the original functions of the range hood cannot be influenced, the range hood control method can also be in work division cooperation with a control chip of the range hood, the work is not influenced, and the work accuracy is improved. The range hood control method comprises the following steps:

step S200: and when a starting instruction is obtained, sending a starting signal to a fan system of the range hood.

The device for acquiring the starting-up instruction is an instruction acquisition device which is connected with the controller and sends the received starting-up instruction to the controller. The instruction acquisition device is usually arranged on the shell of the range hood, the type of the instruction acquisition device is not unique, for example, the instruction acquisition device can be a key, the operation is simple, and the instruction acquisition device can also be a voice recognition device or a gesture recognition device, so that the use convenience is high, and no specific limitation is made herein.

After the controller obtains the starting instruction, it considers that the user needs to start the range hood, and at this time, the controller sends a starting signal to the fan system 21 of the range hood, wherein the starting signal is used for controlling the fan system 21 to suck and exhaust oil smoke. The structure of the fan system 21 is not exclusive, in the present embodiment, the fan system 21 includes a main motor 211, a wind wheel 212, and a volute 213, the main motor 211 and the wind wheel 212 are disposed in the volute 213, the wind wheel 212 is disposed on the main motor 211, and the main motor 211 is connected to the controller. The controller sends a starting signal to the main motor 211, the main motor 211 drives the wind wheel 212 to rotate after receiving the starting signal, negative pressure is generated to absorb cooking oil smoke, and then the absorbed oil smoke is discharged through the wind wheel 212. The range hood further includes a smoke collecting hood assembly, which is generally disposed in an area closest to the range of the range hood, for collecting smoke, and cooperates with the fan system 21 to absorb the smoke generated during combustion and cooking of the range hood. The specific shape, size and the like of the smoke collecting hood assembly can be designed according to actual requirements, so long as the realization can be realized by the technical personnel in the field.

Step S400: and sending a purification command to the purification device.

Wherein, the purification instruction is used for controlling the purification device 12 to purify the oil smoke. After the fan system 21 is started, the fan system 21 starts to suck and discharge the oil smoke, and at this time, a purification instruction is sent to the purification device 12 to control the purification device 12 to start working, so as to purify the oil smoke sucked by the fan system 21. It is understood that the purifying device 12 can purify the oil smoke before entering the fan system 21, or can purify the oil smoke after passing through the fan system 21. The process of purifying the oil smoke by the purifying device 12 is different according to the structure and type of the purifying device 12. In this embodiment, the purifying device 12 is taken as the electrostatic purifying device 12, the electrostatic purifying device 12 includes the generator 122 and the collector 123 as an example, the generator 122 is disposed at an upper air inlet of the range hood, the collector 123 is disposed at a lower air inlet of the range hood, the generator 122 and the collector 123 are disposed along an air direction of the range hood, the oil smoke firstly passes through the generator and then reaches the collector 123, the controller is connected to the generator 122 and the collector 123, the controller sends the purifying instruction to the purifying device 12 may be, and the controller energizes the generator 122 and the collector 123 of the purifying device 12.

Specifically, when the purifying device 12 operates, the soot reaches the generating electrode 122 first and then reaches the collecting electrode 123. Wherein, the generating electrode 122 is connected with high voltage electricity (generally adopting 7-9KV high voltage electricity), taking the purifying device 12 disposed at the air inlet of the range hood as an example, when the oil smoke enters from the air inlet through the generating electrode 122 of the purifying device 12, ions and electrons in the gas are accelerated under the action of the strong electric field near the discharging electrode, so that the ions or electrons have enough kinetic energy to collide with the gas molecules and ionize them, and further more ions and electrons are generated to form a corona discharge region. Under the action of corona of the high-voltage electric field, dust-containing airflow enters a corona discharge area, and electric charges are generated on dust particles.

Generally, low voltage is applied to the collector 123, so that opposite electricity is generated on the collector 123, and the charged particles are adsorbed by adopting the principle of 'opposite attraction', and can be generally connected with 3-4 KV. The collector 123 has an electrical property different from that of the charged particles, and therefore the collector and the charged particles are attracted to each other by the coulomb force of the electric field, so that the charged particles are adsorbed. The coulomb force is the electric field force acting between two charges, the magnitude of the interaction force between two static point charges Q1 and Q2 in vacuum is in direct proportion to the product of Q1 and Q2 and in inverse proportion to the square of the distance r between the two static point charges, the direction of the interaction force is along the connecting line of the two static point charges, the same charges repel each other, and the different charges attract each other. It is understood that in other embodiments, the purification apparatus 12 may also include other structures, as long as those skilled in the art recognize that they can be implemented.

Step S600: when the cleaning instruction is acquired, the cleaning instruction is sent to the washing device.

The device for acquiring the cleaning instruction can also be an instruction acquisition device, and the instruction acquisition device is connected with the controller and sends the acquired cleaning instruction to the controller. The instruction acquisition device is usually arranged on the shell of the range hood, the type of the instruction acquisition device is not unique, for example, the instruction acquisition device can be a key, the operation is simple, and the instruction acquisition device can also be a voice recognition device or a gesture recognition device, so that the use convenience is high, and no specific limitation is made herein. After the controller obtains the cleaning instruction, the oil fume suction machine is considered to be cleaned. At this time, the controller sends a cleaning instruction to the cleaning device to enable the cleaning device to start working.

After receiving the cleaning command, the cleaning device generates a cleaning agent and applies the generated cleaning agent to the purification device 12 and/or the fan system 21. When cleaning agent is applied to the cleaning device 12, the cleaning device 12 can be cleaned, and when cleaning agent is applied to the fan system 21, the fan system 21 can be cleaned. The type of the cleaning agent is not exclusive, and for example, the cleaning agent may be cleaning liquid capable of dissolving grease, water, cleaning liquid steam, high-temperature steam, or the like, and the grease dissolving effect is better. The action mode of the cleaning agent is not unique, the cleaning device can spray cleaning solution steam onto the purification device 12 or the fan system 21 after the cleaning agent is evaporated at high temperature, or both the cleaning solution steam and the fan system 21, and the grease is dissolved by the cleaning solution steam and drops along water flow to leave the purification device 12 and/or the fan system 21. Or, the cleaning device can also adjust the flow direction of the cleaning agent, so that the cleaning agent flows to the purification device 12 and/or the fan system 21, and grease attached to the purification device 12 and/or the fan system 21 is taken away by the washing of the cleaning agent, so that the purification device 12 and/or the fan system 21 are cleaner, the working performance of the purification device 12 and the fan system 21 is improved, and the use reliability of the range hood is improved. It is understood that in other embodiments, the type of cleaning agent may be other, and the manner of action of the cleaning agent may be other, as long as one skilled in the art recognizes that this is possible.

In one embodiment, the washing device includes a steam generator 131, a steam pipe 132 and a steam nozzle 133, the steam generator 131 is connected to the steam nozzle 133 through the steam pipe 132, and the steam generator 131 is connected to the controller. Referring to fig. 2, step S600 includes step S620.

Step S620: when the cleaning instruction is acquired, the cleaning instruction is sent to the steam generator.

Specifically, the steam generator 131 starts to operate after receiving the cleaning instruction, and generates high-temperature steam, and the high-temperature steam is sprayed out from the steam nozzle 133 after passing through the steam pipeline 132, and acts on the purification device 12 and/or the fan system 21, so that the dirt on the purification device 12 and/or the fan system 21 is dissolved, and the dirt drops with the water drops under the action of gravity and leaves the purification device 12 and/or the fan system 21, and the purification device 12 and/or the fan system 21 is cleaned. Further, the number and the arrangement positions of the steam nozzles 133 are not unique, in this embodiment, the number of the steam nozzles 133 is two, one of the steam nozzles 133 is arranged at the air inlet of the purification apparatus 12 and is arranged towards the purification apparatus 12, so that the output high-temperature steam can enter the purification apparatus 12 along the air flow, and the components can be better cleaned. Similarly, another steam nozzle 133 is disposed at the air inlet of the fan system 21 and is disposed toward the fan system 21, so that the outputted high-temperature steam can enter the fan along the wind flow, thereby better cleaning the components. It is understood that the structure of the cleaning device may be other in other embodiments, and the number and the arrangement position of the steam nozzles 133 may be other, as long as those skilled in the art can realize the cleaning.

In an embodiment, referring to fig. 3, after step S600, the range hood control method further includes step S700.

Step S700: and sending a rotation command to the purification device.

Wherein the rotation command is used to control the rotation of the purification apparatus 12. After sending the cleaning instructions to the cleaning device, the cleaning device will generate and apply cleaning agent to the cleaning device 12 and/or the fan system 21, after which the controller sends a rotation instruction to the cleaning device 12, the rotation instruction being used to control the rotation of the cleaning device 12. After the cleaning agent is applied to the purifying device 12 by the cleaning device, the purifying device 12 is controlled to rotate, so that grease attached to the purifying device 12 can be thrown away under the action of centrifugal force after being dissolved by the cleaning agent, and the cleaning effect on the purifying device 12 is further improved. It can be understood that when the cleaning device only applies the cleaning agent to the fan system 21, a rotation command is sent to the purifying device 12 to control the purifying device 12 to rotate, and the oil stain attached to the purifying device 12 can be thrown away under the action of the centrifugal force to clean the purifying device 12. The type of the purifying device 12 is not unique, generally, the purifying device 12 includes a rotatable device, when the purifying device 12 receives a self-cleaning instruction, the device starts to rotate, and grease particles attached to the rotatable device are thrown away under the action of centrifugal force, so as to realize self-cleaning of the purifying device 12, further ensure the working performance of the purifying device 12, improve the purifying capability of the purifying device 12, and improve the use reliability of the range hood.

In one embodiment, the purifying device 12 includes a generator 122, a collector 123 and an auxiliary motor 121, the generator 122 and the collector 123 are disposed along the wind direction of the range hood, and the collector 123 is disposed on the shaft of the auxiliary motor 121. Referring to fig. 4, step S700 includes step S720.

Step S720: a first rotation command is sent to the auxiliary motor.

In this embodiment, the purifying device 12 includes a generator 122, a collector 123 and an auxiliary motor 121, the generator 122 and the collector 123 are disposed along the wind direction of the range hood, the generator 122 is disposed at the upper wind port of the range hood, the collector 123 is disposed at the lower wind port of the range hood, the oil smoke reaches the generator 122 first and then reaches the collector 123, and the collector 123 is disposed on the shaft of the auxiliary motor 121. When the purifying device 12 works, the generator 122 is powered on by high voltage electricity, the collector 123 is powered on by low voltage electricity, when oil smoke enters the generator 122 passing through the purifying device 12 from the air inlet, under the action of corona of a high-voltage electric field, oil smoke air is ionized to generate electric charges, and the electric charges collide grease particles and dust to enable the oil smoke particles and the dust to be charged. When the particulate matter accumulating electric charges passes through the collector 123, the particulate matter is adsorbed on the collector 123 of the purifying device 12 under the action of coulomb force, so that the particulate matter in the oil smoke is separated, and the oil smoke purification is realized. The purified oil smoke passes through the air duct system and then is discharged to a public flue or outdoors through the check valve and the smoke tube. In an expandable manner, when the range hood is in a working state, the collector 123 on the purifying device 12 is connected with a low-voltage power supply and is in a low-speed running state along with the motor shaft of the auxiliary motor 121, so that the adsorption capacity of charged particles is improved. It should be understood that the low speed operation here means that the rotation speed of the motor is low, and generally can be lower than the rotation speed of the lowest gear of the range hood.

After the controller obtains the cleaning instruction, the controller sends a first rotation instruction to the auxiliary motor 121, and the first rotation instruction is used for controlling the auxiliary motor 121 to drive the collector 123 to rotate, so that the collector 123 is thrown away from the grease. After receiving the first rotation command, the auxiliary motor 121 drives the collector 123 to rotate, and grease attached to the collector 123 is thrown away under the action of centrifugal force, so that the clean state of the collector 123 is maintained. The range hood is further provided with a flow guide part and a grease collecting part, the flow guide part can be a flow guide plate, the flow guide part is arranged around the collector 123 at intervals and fixed on the range hood, the grease collecting part is arranged at one end, close to the ground, of the flow guide plate, and the grease collecting part can be an oil cup. The grease thrown out by the collector 123 is gathered on the guide plate and flows into the oil cup under the action of the guide plate and the gravity, so that the oil cup collects the grease generated by cleaning. Further, the first rotation command may be used to control the auxiliary motor 121 to rotate the collector 123 at a super high speed, so as to improve the purification capability of the purification apparatus 12. It is understood that the ultra high speed is defined relative to the gear rotating speed when the range hood normally operates, and the ultra high speed can be defined as the rotating speed higher than the stir-frying gear.

In an embodiment, referring to fig. 3, after step S600, the range hood control method further includes step S800.

Step S800: and sending a rotation instruction to the fan system.

Wherein the rotation command is used to control the rotation of the fan system 21. After sending the cleaning instructions to the cleaning device, the cleaning device will generate and apply cleaning agent to the cleaning device 12 and/or the fan system 21, after which the controller sends a rotation instruction to the fan system 21, the rotation instruction being used to control the fan system 21 to rotate. After the cleaning agent is applied to the fan system 21 by the cleaning device, the fan system 21 is controlled to rotate, so that grease attached to the fan system 21 is thrown away under the action of centrifugal force after being dissolved by the cleaning agent, and the cleaning effect on the fan system 21 is further improved. It can be understood that when the cleaning device only applies the cleaning agent to the purification device 12, a rotation command is sent to the fan system 21 to control the fan system 21 to rotate, and oil stains attached to the fan system 21 can be thrown away under the action of centrifugal force to clean the fan system 21. The mode of the fan system 21 for throwing away the grease is not unique, generally, the fan system 21 comprises a rotatable device, when the fan system 21 receives a rotation instruction, the device starts to rotate, grease particles attached to the rotatable device are thrown away under the action of centrifugal force, the self-cleaning of the fan system 21 is realized, the working performance of the fan system 21 is further ensured, and the use reliability of the range hood is improved.

In one embodiment, fan system 21 includes a main motor 211, a wind turbine 212, and a volute 213, with main motor 211 and wind turbine 212 disposed within volute 213, and wind turbine 212 disposed on main motor 211. Referring to fig. 4, step S800 includes step S820.

Step S820: sending a second rotation command to the main motor.

In the present embodiment, the fan system 21 includes a main motor 211, a wind wheel 212, and a volute 213, the main motor 211 and the wind wheel 212 are disposed in the volute 213, and the wind wheel 212 is disposed on the main motor 211. During cooking, the fan system 21 of the smoke machine operates, the main motor 211 drives the wind wheel 212 to rotate, negative pressure is generated in the volute 213, and cooking oil smoke is absorbed. The controller sends a second rotation command to the main motor 211, and the second rotation command is used for controlling the main motor 211 to drive the wind wheel 212 to rotate and throw away grease. After receiving the second rotation instruction, the main motor 211 drives the wind wheel 212 to rotate, and grease attached to the wind wheel 212 is thrown away under the action of centrifugal force, so that the clean state of the wind wheel 212 is maintained. The range hood is further provided with a flow guide part and a grease collecting part, the flow guide part can be a flow guide plate, the flow guide part is arranged around the wind wheel 212 at intervals and fixed on the range hood, the grease collecting part is arranged at one end, close to the ground, of the flow guide plate, and the grease collecting part can be an oil cup. The grease thrown out by the wind wheel 212 is gathered on the guide plate and flows into the oil cup under the action of the guide flow and the gravity of the guide plate, so that the oil cup finishes the collection of the grease generated by cleaning. Further, the second rotation command may be used to control main motor 211 to rotate wind wheel 212 at a super high speed, so as to improve the purification capability of fan system 21. It is understood that the ultra high speed is defined relative to the gear rotating speed when the range hood normally operates, and the ultra high speed can be defined as the rotating speed higher than the stir-frying gear. The second rotation command is used for controlling the main motor 211 to drive the wind wheel 212 to rotate and throw away grease.

In an embodiment, referring to fig. 3, before step S600, the range hood control method further includes step S500.

Step S500: and when the cleaning instruction is acquired, controlling the purification device to be powered off.

Before the controller sends the cleaning instruction to the cleaning device, when the cleaning instruction is acquired, the purifying device 12 is controlled to be powered off so as to ensure the safety of the purifying device 12. For example, when the purifying device 12 includes the generator 122 or the collector 123, the generator 122 is usually loaded with a high voltage, the collector 123 is also loaded with a voltage, and the generator 122 and the collector 123 are powered off before being cleaned with a cleaning agent, so that a creepage risk is avoided, the safety of the purifying device 12 can be improved, and a safety problem is avoided.

According to the control method of the range hood, when a starting instruction is obtained, a starting signal is sent to the fan system 21 of the range hood, the starting signal is used for controlling the fan system 21 to suck and exhaust oil smoke, then a purification instruction is sent to the purification device 12, the purification instruction is used for controlling the purification device 12 to purify the oil smoke, when a cleaning instruction is obtained, the cleaning instruction is sent to the cleaning device, the cleaning instruction is used for controlling the cleaning device to generate cleaning agent, and the cleaning agent is applied to the purification device 12 and/or the fan system 21. Fan system 21 can inhale the row oil smoke, reduce the influence that the oil smoke that the culinary art produced led to the fact the user, purifier 12 can purify the oil smoke, the atmosphere pollution that the direct exhaust oil smoke of reduction range hood caused, when obtaining clean instruction, can also send clean instruction to belt cleaning device, make belt cleaning device produce the cleaner, clean purifier 12 and/or fan system 21, be favorable to keeping purifier 12 and fan system 21's clean state, improve purifier 12 and fan system 21's working property, thereby range hood's use reliability has been improved.

In an embodiment, please refer to fig. 5-8, which provide a control device for a range hood, comprising an instruction obtaining device, a controller, a purifying device 12 and a cleaning device, which are disposed on the range hood, wherein the instruction obtaining device, the purifying device 12 and the cleaning device are all connected to the controller; the command acquisition device is used for receiving a starting command and/or a cleaning command and sending the received command to the controller, the purification device 12 is used for purifying oil smoke, the cleaning device is used for generating cleaning agent and applying the cleaning agent to the purification device 12 and/or the fan system 21, and the controller is used for controlling the oil smoke exhauster according to the method.

Specifically, the instruction acquisition device is connected with the controller and sends the acquired startup instruction and/or cleaning instruction to the controller. The instruction acquisition device is usually arranged on the shell of the range hood, the type of the instruction acquisition device is not unique, for example, the instruction acquisition device can be a key, the operation is simple, and the instruction acquisition device can also be a voice recognition device or a gesture recognition device, so that the use convenience is high, and no specific limitation is made herein.

In one embodiment, referring to fig. 5-8, the cleaning device includes a steam generator 131, a steam pipe 132 and a steam nozzle 133, the steam generator 131 is connected to the steam nozzle 133 through the steam pipe 132, and the steam generator 131 is connected to the controller.

Specifically, the steam generator 131 may operate under the control of the controller, for example, start to operate after receiving a cleaning command sent by the controller, and generate high-temperature steam. The high-temperature steam is sprayed out from the steam nozzle 133 after passing through the steam pipeline 132, and acts on the purification device 12 and/or the fan system 21, so that the dirt on the purification device 12 and/or the fan system 21 is dissolved, and drops with the water drops under the action of gravity to leave the purification device 12 and/or the fan system 21, and the purification device 12 and/or the fan system 21 is cleaned. Further, the number and the arrangement positions of the steam nozzles 133 are not exclusive, and in one embodiment, the number of the steam nozzles 133 is two, wherein one steam nozzle 133 is arranged at the air inlet of the purifying device 12 and is arranged towards the purifying device 12, so that the output high-temperature steam can enter the purifying device 12 along the air flow, and the parts can be cleaned better. Similarly, another steam nozzle 133 is disposed at the air inlet of the fan system 21 and is disposed toward the fan system 21, so that the outputted high-temperature steam can enter the fan along the wind flow, thereby better cleaning the components. It is understood that the structure of the cleaning device may be other in other embodiments, and the number and the arrangement position of the steam nozzles 133 may be other, as long as those skilled in the art can realize the cleaning.

In one embodiment, referring to fig. 5-8, the purifying device 12 includes a generator 122, a collector 123 and an auxiliary motor 121, the generator 122 and the collector 123 are disposed along the wind direction of the range hood, the collector 123 is disposed on the shaft of the auxiliary motor 121, and the generator 122, the collector 123 and the auxiliary motor 121 are all connected to the controller.

Specifically, referring to fig. 5-8, when the purifying device 12 works, the soot reaches the generating electrode 122 first and then reaches the collecting electrode 123. The structure of the generating electrode 122 can be seen in fig. 9, and the structure of the collecting electrode 123 can be seen in fig. 10. Wherein, the generating electrode 122 is connected with high voltage electricity (generally adopting 7-9KV high voltage electricity), taking the purifying device 12 disposed at the air inlet of the range hood as an example, when the oil smoke enters from the air inlet through the generating electrode 122 of the purifying device 12, ions and electrons in the gas are accelerated under the action of the strong electric field near the discharging electrode, so that the ions or electrons have enough kinetic energy to collide with the gas molecules and ionize them, and further more ions and electrons are generated to form a corona discharge region. Under the action of corona of the high-voltage electric field, dust-containing airflow enters a corona discharge area, and electric charges are generated on dust particles. The purification device 12 may also comprise, in an expandable manner, an auxiliary motor support 124 for carrying the auxiliary motor 121.

When a starting instruction is obtained, the control device of the range hood sends a starting signal to the fan system 21 of the range hood, the starting signal is used for controlling the fan system 21 to suck and exhaust oil smoke, then a purification instruction is sent to the purification device 12, the purification instruction is used for controlling the purification device 12 to purify the oil smoke, when a cleaning instruction is obtained, the cleaning instruction is sent to the cleaning device, and the cleaning instruction is used for controlling the cleaning device to generate a cleaning agent and applying the cleaning agent to the purification device 12 and/or the fan system 21. Fan system 21 can inhale the row oil smoke, reduce the influence that the oil smoke that the culinary art produced led to the fact the user, purifier 12 can purify the oil smoke, the atmosphere pollution that the direct exhaust oil smoke of reduction range hood caused, when obtaining clean instruction, can also send clean instruction to belt cleaning device, make belt cleaning device produce the cleaner, clean purifier 12 and/or fan system 21, be favorable to keeping purifier 12 and fan system 21's clean state, improve purifier 12 and fan system 21's working property, thereby range hood's use reliability has been improved.

In one embodiment, a range hood apparatus is provided, which includes a range hood and the range hood control device as described above, the range hood control device being disposed on the range hood.

In one embodiment, referring to fig. 5-8, the range hood includes a fan system 21, the fan system 21 includes a main motor 211, a wind wheel 212, and a volute 213, the main motor 211 and the wind wheel 212 are disposed in the volute 213, the wind wheel 212 is disposed on the main motor 211, and the main motor 211 is connected to the controller. The controller sends a starting signal to the main motor 211, and the main motor 211 drives the wind wheel 212 to rotate after receiving the starting signal, so as to generate negative pressure to absorb cooking oil smoke. Further, the fan system 21 may further comprise a main motor support 214, the main motor support 214 being configured to carry the main motor 211.

In one embodiment, the range hood further comprises a flow guide member for intensively transferring the grease removed by the purifying device 12 to the grease collecting member, and the grease collecting member.

Specifically, the flow guiding element may be a flow guiding plate, and is disposed around the collector 123 and/or the wind wheel 212 at intervals, without contacting the collector 123 and the wind wheel 212. The guide plate is fixed on the range hood, and one end of the guide plate close to the ground is provided with a grease collecting piece which can be an oil cup. The grease thrown out by the collector 123 and/or the wind wheel 212 is gathered on the guide plate and flows into the oil cup under the action of the guide flow and the gravity of the guide plate, so that the oil cup collects the grease generated by cleaning.

For a better understanding of the above embodiments, the following detailed description is given in conjunction with a specific embodiment. In one embodiment, referring to fig. 5-8, the range hood apparatus includes a fan system 21 for absorbing oil smoke, a purifying device 12 for purifying and separating oil smoke, and a cleaning device for cleaning. The fan system 21 includes a main motor 211 and a wind wheel 212, and may further include a volute 213, the purifying device 12 includes a generating pole 122 for ionizing lampblack, a collecting pole 123 for collecting grease particles, and an auxiliary motor 121, and the cleaning device includes a steam generator 131, a steam pipe 132, and a steam nozzle 133.

The main motor 211 and the wind wheel 212 are installed inside the volute 213 to form the fan system 21, and the fan system 21 generates negative pressure during operation, thereby absorbing oil smoke. Purifier 12 installs in ductwork air intake department, and wherein, the collector 123 is installed on the axle of auxiliary motor 121, installs between generator 122 and spiral case 213, and steam generator 131 installs on the roof of wind cabinet 23, and it is wind cabinet 23 exactly to be above the top suction type cigarette machine collection petticoat pipe, and wind cabinet 23 is inside has components such as ductwork, and steam nozzle 133 installs in purifier 12 air intake department, is connected by the pipeline between steam nozzle 133 and the steam generator 131.

Referring to fig. 11, during cooking, the fan system 21 of the smoke exhaust machine is operated, the main motor 211 drives the wind wheel 212 to rotate, negative pressure is generated to absorb cooking fumes, and the purifying device 12 is started. At this time, the generator 122 is energized with high voltage electricity, the collector 123 is energized with low voltage electricity, when the oil smoke enters from the air inlet and passes through the generator 122 of the purifying device 12, under the corona effect of the high voltage electric field, the oil smoke air is ionized to generate electric charges, and the electric charges collide with grease particles and dust to make the oil smoke particles and dust charged. When the particulate matter accumulating electric charges passes through the collector 123, the particulate matter is adsorbed on the collector 123 of the purifying device 12 under the action of coulomb force, so that the particulate matter in the oil smoke is separated, and the oil smoke purification is realized. The purified oil smoke passes through the air duct system and then is discharged to a public flue or outdoors through the check valve and the smoke tube. When the range hood is in a working state, the collector 123 on the purifying device 12 is connected with a low-voltage power supply and is in a low-speed running state along with the motor shaft of the auxiliary motor 121, so that the adsorption capacity of charged particles is improved.

When the range hood receives a cleaning instruction, the range hood enters a cleaning state, the controller controls the steam generator 131 to work to generate high-temperature steam, and simultaneously sends an instruction to control the purification device 12 to be powered off, and the main motor 211 and the auxiliary motor 121 are controlled to run at a high speed. Since the generator 122 of the purification apparatus 12 carries high voltage electricity, safety can be ensured by cutting off the electricity during cleaning, and the risk of creepage can be reduced. The high temperature steam is sprayed to the electrode plate of the purification device 12 and the blades of the centrifugal fan blade through the steam nozzle 133 via the pipeline, so that the dirt attached to the high temperature steam is dissolved, and then is thrown away to the wall of the enclosing plate under the action of high-speed centrifugal force. The high-temperature steam can further wash the inner wall of the enclosing plate and then flows into the oil cup through the flow guide channel, so that the cleaning of the range hood is realized.

Through carrying on ionization purifier 12 on the cigarette machine, carry out the oil smoke at the culinary art in-process and purify, improve whole grease separation degree, reduce grease particulate matter and discharge, promote air quality, carry out periodic cleaning through belt cleaning device to purifier 12 and fan system 21 after using to guarantee the performance of cigarette machine. Specifically, during cooking, the fan system 21 of the range hood works at a high speed to absorb generated oil smoke, the purifying device 12 ionizes and purifies the oil smoke entering from the air inlet and adsorbs charged particles, so that oil smoke purification is realized, the integral oil-fat separation degree of the range hood is improved, and the quality of discharged air is improved. When the cleaning function is started, the cleaning device generates high-temperature steam through the steam generating device, and the high-temperature steam can be water steam or cleaning fluid steam. Meanwhile, the main motor 211 and the auxiliary motor 121 drive the wind wheel 212 and the collector 123 of the purification device 12 to rotate at a high speed, high-temperature steam is sprayed out from the steam outlet through the pipeline and then sprayed on the collector 123 and the centrifugal fan blade rotating at a high speed, so that stains on the collector 123 and the centrifugal fan blade are dissolved, and meanwhile, under the action of high-speed centrifugation, steam attached to the stains is thrown away, so that the cleaning effect is achieved.

According to the range hood equipment, when a starting instruction is obtained, a starting signal is sent to the fan system 21 of the range hood, the starting signal is used for controlling the fan system 21 to suck and exhaust oil smoke, then a purification instruction is sent to the purification device 12, the purification instruction is used for controlling the purification device 12 to purify the oil smoke, when a cleaning instruction is obtained, the cleaning instruction is sent to the cleaning device, the cleaning instruction is used for controlling the cleaning device to generate cleaning agent, and the cleaning agent is applied to the purification device 12 and/or the fan system 21. Fan system 21 can inhale the row oil smoke, reduce the influence that the oil smoke that the culinary art produced led to the fact the user, purifier 12 can purify the oil smoke, the atmosphere pollution that the direct exhaust oil smoke of reduction range hood caused, when obtaining clean instruction, can also send clean instruction to belt cleaning device, make belt cleaning device produce the cleaner, clean purifier 12 and/or fan system 21, be favorable to keeping purifier 12 and fan system 21's clean state, improve purifier 12 and fan system 21's working property, thereby range hood's use reliability has been improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A control method of a range hood is characterized by comprising the following steps:

2. The range hood control method according to claim 1, wherein the cleaning device includes a steam generator, a steam pipe and a steam nozzle, the steam generator is connected to the steam nozzle through the steam pipe, the steam generator is connected to the controller, and when a cleaning command is obtained, the cleaning command is sent to the cleaning device, including:

3. The range hood control method according to claim 1, wherein after the cleaning instruction is sent to the washing device when the cleaning instruction is obtained, the method further comprises:

4. The control method of the range hood according to claim 3, wherein the purification device comprises a generator, a collector and an auxiliary motor, the generator and the collector are arranged along the wind direction of the range hood, the collector is arranged on the shaft of the auxiliary motor, and the sending of the rotation command to the purification device comprises:

5. The range hood control method according to claim 1, wherein after the cleaning instruction is sent to the washing device when the cleaning instruction is obtained, the method further comprises:

6. The range hood control method according to claim 5, wherein the fan system includes a main motor, a wind wheel and a volute, the main motor and the wind wheel are disposed in the volute, the wind wheel is disposed on the main motor, and the sending of the rotation command to the fan system includes:

7. The range hood control method according to claim 1, wherein before the step of sending the cleaning command to the washing device when the cleaning command is obtained, the method further comprises:

8. A range hood control device is characterized by comprising an instruction acquisition device, a controller, a purification device and a cleaning device which are arranged on a range hood, wherein the instruction acquisition device, the purification device and the cleaning device are all connected with the controller; the command acquisition device is used for receiving a starting command and/or a cleaning command and sending the received command to the controller, the purification device is used for purifying oil smoke, the cleaning device is used for generating cleaning agent and applying the cleaning agent to the purification device and/or the fan system, and the controller is used for controlling the oil smoke exhauster according to the method of any one of claims 1 to 7.

9. The control device of the range hood of claim 8, wherein the cleaning device comprises a steam generator, a steam pipe and a steam nozzle, the steam generator is connected with the steam nozzle through the steam pipe, and the steam generator is connected with the controller.

10. The control device of the range hood according to claim 9, wherein the number of the steam nozzles is two or more.

11. The control device of the range hood according to claim 8, wherein the purifying device comprises a generator, a collector and an auxiliary motor, the generator and the collector are arranged along the wind direction of the range hood, the collector is arranged on the shaft of the auxiliary motor, and the generator, the collector and the auxiliary motor are all connected with the controller.

12. A range hood apparatus, comprising a range hood and a range hood control device as claimed in any one of claims 8 to 11, the range hood control device being provided to the range hood.