CN107355835B - Cleaning device of range hood, control method of cleaning device and range hood - Google Patents
Cleaning device of range hood, control method of cleaning device and range hood Download PDFInfo
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- CN107355835B CN107355835B CN201710685345.9A CN201710685345A CN107355835B CN 107355835 B CN107355835 B CN 107355835B CN 201710685345 A CN201710685345 A CN 201710685345A CN 107355835 B CN107355835 B CN 107355835B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2057—Removing cooking fumes using a cleaning liquid
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Abstract
The invention discloses a cleaning device of a range hood, a control method thereof and the range hood, wherein the cleaning device of the range hood comprises: the device comprises a volute, a wind wheel, a water containing tank, an oil containing cup, a water inlet pipeline, a water drainage pipeline, an oil drainage pipeline and a control valve. The water inlet pipeline is used for introducing fluid into the installation cavity, the water drainage pipeline is used for discharging liquid in the installation cavity, and the control valve is used for controlling the connection and disconnection of the water inlet pipeline and the water drainage pipeline. The control valve has a first state, a second state and a third state, and when the control valve is in the first state, the water inlet pipeline and the water discharge pipeline are disconnected; when the control valve is in a second state, the water inlet pipeline is communicated, and the water discharge pipeline is disconnected; when the control valve is in the third state, the water inlet pipeline is disconnected, and the water discharge pipeline is communicated. According to the cleaning device of the range hood, the range hood can be effectively cleaned on the premise of ensuring the normal operation of the range hood.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a cleaning device of a range hood, a control method of the cleaning device and the range hood.
Background
The range hood is used in a kitchen environment to remove oil fume, and after the range hood works for a long time, a large amount of oil dirt can be accumulated on the inner wall of the volute and the surface of the wind wheel, so that the oil dirt can cause load increase, noise increase and oil fume suction effect reduction. In the related art, the cleaning device of the range hood has limited cleaning effect on the range hood, and an improved space exists.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, one object of the present invention is to provide a cleaning device for a range hood, which can effectively clean the range hood while ensuring the normal operation of the range hood.
Another object of the present invention is to provide a range hood with the above cleaning device.
Another objective of the present invention is to provide a control method for a cleaning device of a range hood.
The cleaning device for the range hood according to the embodiment of the first aspect of the invention comprises: the volute is internally provided with a mounting cavity; the wind wheel is positioned in the mounting cavity; a water holding tank located outside the volute; an oil cup located outside the volute; one end of the water inlet pipeline is communicated with the installation cavity, and the other end of the water inlet pipeline is communicated with the water containing tank so as to introduce fluid into the installation cavity; one end of the drainage pipeline is communicated with the bottom of the installation cavity, and the other end of the drainage pipeline is communicated with the water containing tank so as to discharge liquid in the installation cavity; one end of the oil discharge pipeline is communicated with the bottom of the mounting cavity, and the other end of the oil discharge pipeline is communicated with the oil containing cup so as to discharge oil drops of the range hood; the control valve is used for controlling the on-off of the oil drainage pipeline and the water drainage pipeline, the control valve has a first state, a second state and a third state, and when the control valve is in the first state, the oil drainage pipeline and the water drainage pipeline are both disconnected; when the control valve is in a second state, the oil discharge pipeline is communicated, and the water discharge pipeline is disconnected; when the control valve is in a third state, the oil discharge pipeline is disconnected, and the water discharge pipeline is communicated.
The cleaning device of the range hood provided by the embodiment of the invention has a good cleaning effect, so that the performance of the range hood is ensured, repeated disassembly and assembly of the range hood for many times are avoided, and the cleanness of a kitchen environment is ensured.
According to some embodiments of the invention, the control valve comprises: the main body part is provided with a sliding channel, the sliding channel is provided with a first communication port, a second communication port and a third communication port which are spaced, the first communication port is communicated with the installation cavity, the second communication port is communicated with the oil containing cup, and the third communication port is communicated with the drainage pipeline; the valve core slides in the sliding channel to control the opening or closing of the first communication port to the third communication port; when the control valve is in a first state, the second communication port and the third communication port are both closed; when the control valve is in the second state, the first communication port and the second communication port are opened, and the third communication port is closed; when the control valve is in the third state, the first communication port and the third communication port are opened, and the second communication port is closed. Thereby, switching of the control valve between the first, second and third state is achieved.
According to some embodiments of the invention, the sliding channel extends along a straight line, both ends of the sliding channel in the length direction are provided with driving members, the driving members are suitable for driving the valve core to move, the first communication port is positioned on one side of the sliding channel, and the second communication port and the third communication port are positioned on the other side of the sliding channel, and the valve core comprises: a first stopper adapted to close the second communication port or the third communication port; the second stop block is spaced from the first stop block and is suitable for closing the second communication port; and one end of the connecting rod is connected with the first stop block, and the other end of the connecting rod is connected with the second stop block. Simple structure and easy realization.
According to some embodiments of the invention, the driving member is a magnetic member, and the valve core is a component adapted to be attracted by the magnetic member, so that the valve core can move along the sliding channel under the driving of the driving member to realize the switching of the control valve.
According to some embodiments of the invention, one end of the water inlet pipeline is provided with the nozzle, so that the fluid on the water inlet pipeline can be uniformly sprayed to the surface of the wind wheel through the nozzle, and the cleaning effect of the fluid on the wind wheel is ensured.
According to some embodiments of the invention, the water inlet line is provided with a first pump body and a heating assembly. From this, through setting up the first pump body in order to drive the interior fluidic flow of intake pipe, make the fluid get rid of the greasy dirt better through setting up heating element, guarantee the cleaning performance.
According to some embodiments of the present invention, a temperature sensor is disposed proximate to the heating assembly to detect a temperature of the fluid in the water inlet line, thereby determining a state of the fluid in the water inlet line.
According to some embodiments of the invention, the drain line is provided with a second pump body, so as to ensure the smoothness of the drain line.
A range hood according to an embodiment of the second aspect of the present invention includes the cleaning device of the range hood according to the embodiment of the first aspect of the present invention.
According to the range hood provided by the embodiment of the invention, by adopting the cleaning device, the range hood can be effectively cleaned on the premise of not influencing the normal operation of the range hood, and the oil smoke absorption effect of the range hood is ensured, so that the cleanness of the kitchen environment is ensured, and meanwhile, the water consumption for cleaning is saved.
According to a control method of a cleaning device of a range hood of an embodiment of a third aspect of the invention, the cleaning device is the cleaning device of the range hood of the embodiment of the first aspect of the invention, and the control method comprises the following steps: starting the control valve to enable the control valve to be in the first state, and introducing fluid into the installation cavity; rotating the wind wheel after the first preset time; after a second predetermined time, the control valve is switched to the third state; after a third predetermined time, the control valve switches to the second state.
According to the control method of the cleaning device of the range hood, provided by the embodiment of the invention, on the premise of not influencing the normal operation of the range hood, the cleaning effect of the range hood is ensured, and meanwhile, the cleaning device is convenient to control and operate.
According to some embodiments of the invention, after the fluid is introduced into the installation cavity and the first preset time passes, the height of the liquid fluid in the installation cavity is H1, and the distance between the rotating shaft of the wind wheel and the inner bottom wall of the installation cavity is H2, wherein H1 is less than or equal to H2.
According to some embodiments of the invention, the water inlet pipeline is provided with a first pump body and a heating assembly; adjusting the power duty cycle of the first pump body and the temperature of the heating assembly to ensure that at least part of the fluid entering the mounting cavity is gas.
According to some embodiments of the invention, after a first predetermined time, the rotor rotates at a first rotational speed; and after second preset time, the control valve is switched to the third state, and after first sub-preset time, the wind wheel rotates at a second rotating speed for second sub-preset time, wherein the sum of the first sub-preset time and the second sub-preset time is equal to the third preset time, so that the wind wheel is cleaned and dried.
According to some embodiments of the present invention, the first rotation speed is less than the second rotation speed, thereby further ensuring the washing effect and the spin-drying effect.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a front view of a range hood according to an embodiment of the present invention;
figure 2 is a side view of the range hood shown in figure 1;
FIG. 3 is a schematic view of an assembly of the water inlet line, the first pump body and the heating assembly according to an embodiment of the invention, wherein the arrows indicate the direction of flow of the liquid in the water inlet line;
FIG. 4 is a schematic diagram of the connection of the first pump body, the heating assembly, and the temperature sensor to the control module, respectively, according to the embodiment of the invention;
FIG. 5 is a schematic illustration of the control valve shown in FIG. 1, wherein the control valve is in a first state;
FIG. 6 is another schematic structural view of the control valve shown in FIG. 5, wherein the control valve is in a second state;
fig. 7 is a schematic view of still another configuration of the control valve shown in fig. 5, wherein the control valve is in a third state.
Reference numerals:
a range hood 200,
A volute 1, a mounting cavity 10a, a wind wheel 21, a motor 22,
A water tank 31, an oil cup 32, a water inlet pipe 41, a water discharge pipe 42,
A control valve 5,
A main body part 51, a slide passage 511, a first communication port 511a, a second communication port 511b, a third communication port 511c,
A valve core 52, a first stopper 521, a second stopper 522, a connecting rod 523, a driver 53,
A nozzle 6, a first pump 71, a second pump 72,
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
A cleaning apparatus of a range hood 200 according to an embodiment of the present invention will be described with reference to fig. 1 to 7.
As shown in fig. 1 to 7, the cleaning device of a range hood 200 according to an embodiment of the present invention includes a volute 1, a wind wheel 21, a water tank 31, an oil cup 32, a water inlet pipe 41, a water discharge pipe 42, an oil discharge pipe (not shown), and a control valve 5.
The volute 1 defines a mounting cavity 10a therein, the wind wheel 21 is rotatably located in the mounting cavity 10a, the wind wheel 21 is connected to the motor 22 to be driven by the motor 22 to rotate, the water containing tank 31 is located outside the volute 1 to contain collecting liquid (such as clear water or sewage), and the oil containing cup 32 is located outside the volute 1 to collect oil droplets generated during normal operation of the range hood 200.
A first end of the water inlet pipe 41 is communicated with the water containing tank 31, and a second end of the water inlet pipe 41 is communicated with the installation cavity 10a, so that the fluid in the water containing tank 31 can flow into the installation cavity 10a through the water inlet pipe 41. A first end of the drain line 42 communicates with the bottom of the installation chamber 10a, and a second end of the drain line 42 communicates with the water containing tank 31, so that liquid (e.g., sewage) in the installation chamber 10a can be discharged into the water containing tank 31 through the drain line 42. The first end of the oil drainage pipeline is communicated with the bottom of the mounting cavity 10a, and the second end of the oil drainage pipeline is communicated with the oil containing cup 32, so that liquid (such as oil drops) in the mounting cavity 10a can be drained into the oil containing cup 32 through the oil drainage pipeline.
The control valve 5 is used for controlling the on-off of the oil drainage pipeline and the water drainage pipeline 42. Further, the control valve 5 has a first state, a second state and a third state, when the control valve 5 is in the first state, the oil discharge pipeline and the water discharge pipeline 42 are disconnected, and the bottom of the installation cavity 10a is closed, so that the fluid (such as clean water or steam, etc.) flowing from the water inlet pipeline 41 into the installation cavity 10a can be stored; when the control valve 5 is in the second state, the oil discharge pipeline is connected, the water discharge pipeline 42 is disconnected, the bottom of the installation cavity 10a is opened at the moment, and liquid (such as oil drops) in the installation cavity 10a can be discharged into the oil containing cup 32 along the oil discharge pipeline; when the control valve 5 is in the third state, the oil discharge line is disconnected, the water discharge line 42 is connected, the bottom of the installation cavity 10a is opened, and the liquid (for example, sewage) in the installation cavity 10a can be completely discharged into the water containing tank 31 along the water discharge line 42. Therefore, the state of the control valve 5 can be adjusted according to the state of the cleaning device, so that the normal operation of the range hood 200 is ensured, and meanwhile, the cleaning device cleans the range hood 200.
Specifically, when the cleaning device is applied to the range hood 200, the range hood 200 normally works, and as the condensing device is arranged in the range hood 200 to condense oil fume gas, oil fume separation is realized, so that oil fume is condensed into oil drops and is gathered at the bottom of the mounting cavity 10a, at this time, the control valve 5 is adjusted to the second state, so that the oil discharge pipeline is communicated and the water discharge pipeline 42 is disconnected, and the oil drops flow into the oil containing cup 32 along the oil discharge pipeline under the action of self gravity; after the range hood 200 works for a period of time, a large amount of oil stains are accumulated on the inner wall of the volute 1 and the surface of the wind wheel 21 and need to be cleaned, at this time, the control valve 5 is adjusted to be in the first state, so that the oil discharge pipeline is disconnected, the water discharge pipeline 42 is disconnected, the bottom of the installation cavity 10a is in a closed state, fluid (such as clear water or steam and the like) in the water containing tank 31 can flow into the installation cavity 10a along the water inlet pipeline 41, when the fluid in the installation cavity 10a rises to a certain height, the motor 22 is started, the wind wheel 21 is driven by the motor 22 to rotate to stir the fluid, so that the fluid scours the inner wall of the volute 1 and the surface of the wind wheel 21, and the cleaning of the volute 1 and the wind wheel 21 is realized; when the volute 1 and the wind wheel 21 are cleaned, the control valve 5 is adjusted to the third state, so that the oil discharge pipeline is disconnected and the water discharge pipeline 42 is connected, and liquid (such as sewage) can flow into the water containing tank 31 along the water discharge pipeline 42.
Therefore, by arranging the cleaning device, the range hood 200 can be quickly cleaned, a large amount of oil stains are prevented from being accumulated in the range hood 200, and the oil fume suction effect of the range hood 200 is ensured, so that the cleanness of the kitchen environment is ensured; meanwhile, the range hood 200 is prevented from being repeatedly disassembled and assembled for many times, so that the kitchen environment is prevented from being polluted by oil smoke overflowing due to air leakage of the range hood 200; the control valve 5 is arranged to control the on-off of the oil drainage pipeline and the water drainage pipeline 42, so that the volute 1 can store fluid flowing from the water inlet pipeline 41 into the installation cavity 10a, and liquid (such as oil drops) in the installation cavity 10a can be drained into the oil containing cup 32, and meanwhile, the liquid (such as sewage) in the installation cavity 10a can be completely drained into the water containing tank 31 along the water drainage pipeline 42, so that the cleaning device does not influence the normal operation of the range hood, realizes the classified discharge of different liquids, and is beneficial to the environmental protection.
The cleaning device of the range hood 200 according to the embodiment of the invention has a good cleaning effect, so that the performance of the range hood 200 is ensured, repeated disassembly and assembly of the range hood 200 for many times are avoided, the cleanness of the kitchen environment is ensured, and the environmental protection is facilitated.
In a further embodiment of the present invention, the control valve 5 includes a main body portion 51 and a valve core 52, the main body portion 51 has a slide passage 511, the slide passage 511 has a first communication port 511a, a second communication port 511b, and a third communication port 511c that are spaced apart, the first communication port 511a communicates with the mounting chamber 10a, the second communication port 511b communicates with the drain line, and the third communication port 511c communicates with the drain line 42, and the valve core 52 slides within the slide passage 511 to control opening or closing of the first communication port 511a, the second communication port 511b, and the third communication port 511 c. Thereby, switching of the control valve 5 between the first state, the second state and the third state is achieved.
As shown in fig. 5 to 7, when the control valve 5 is in the first state, the second communication port 511b and the third communication port 511c are both closed, so that the drain line is disconnected, the drain line 42 is disconnected, the bottom of the installation cavity 10a is closed, and the fluid flowing from the water inlet line 41 into the installation cavity 10a can be stored; when the control valve 5 is in the second state, the first communication port 511a and the second communication port 511b are opened, the third communication port 511c is closed, so that the installation cavity 10a is communicated with the oil drain pipeline, the water drain pipeline 42 is disconnected, and the liquid (for example, oil drops) in the installation cavity 10a can be drained into the oil containing cup 32 along the oil drain pipeline; when the control valve 5 is in the third state, the first communication port 511a and the third communication port 511c are opened, the second communication port 511b is closed, the drain line is disconnected, the installation chamber 10a and the drain line 42 are communicated with each other, and the liquid (for example, sewage) in the installation chamber 10a can be entirely drained into the water containing tank 31 along the drain line 42.
In an alternative embodiment of the present invention, the sliding passage 511 extends along a straight line, both ends of the sliding passage 511 in the length direction have driving members 53, the driving members 53 are adapted to drive the valve plug 52 to move, the first communication port 511a is located at one side of the sliding passage 511, and the second and third communication ports 511b and 511c are located at the other side of the sliding passage 511. The valve spool 52 includes a first stopper 521, a second stopper 522, and a connecting rod 523, wherein the first stopper 521 is adapted to close the second communication port 511b or the third communication port 511c, the second stopper 522 is spaced apart from the first stopper 521, the second stopper 522 is adapted to close the second communication port 511b, one end of the connecting rod 523 is connected to the first stopper 521, and the other end is connected to the second stopper 522. This simplifies the structure of the control valve 5 and facilitates implementation.
For example, in the example of fig. 5 to 7, the slide passage 511 extends linearly in the left-right direction, and the driving pieces 53 are respectively located at the left and right ends of the slide passage 511. The first communication port 511a may be located at an upper side of the sliding passage 511 to communicate with the bottom of the installation chamber 10a, and the second communication port 511b and the third communication port 511c may be both located at a lower side of the sliding passage 511, so that the liquid (e.g., oil droplets) in the installation chamber 10a flows downward into the oil receiving cup 32 through the second communication port 511b by its own weight, and the liquid (e.g., sewage) in the installation chamber 10a flows downward into the water receiving tank 31 through the third communication port 511c by its own weight.
As shown in fig. 5 to 7, the first stopper 521 and the second stopper 522 may be spaced left and right, and an upper sidewall and a lower sidewall of the first stopper 521 are in close contact with a wall surface of the slide passage 511, and an upper sidewall and a lower sidewall of the second stopper 522 are in close contact with a wall surface of the slide passage 511. The first stopper 521 may be connected to a left end of the connecting rod 523, the second stopper 522 may be connected to a right end of the connecting rod 523, and a cross-sectional size of the connecting rod 523 is smaller than that of the sliding passage 511. When the driving element 53 drives the valve core 52 to move leftward to make the first stopper 521 close the third communication port 511c and the second stopper 522 close the second communication port 511b, the left side wall of the first stopper 521 can abut against the wall surface of the sliding channel 511, and the control valve 5 is in the first state, so as to store the fluid flowing from the water inlet pipeline 41 into the installation cavity 10 a; when the driver 53 drives the valve element 52 to move rightward so that the first communication port 511a and the second communication port 511b are both located between the right side wall of the first stopper 521 and the left side wall of the second stopper 522, the first stopper 521 closes the third communication port 511c, and the first communication port 511a and the second communication port 511b are both open, and at this time, the control valve 5 is in the second state to achieve discharge of liquid (e.g., oil droplets) in the mounting chamber 10 a; when the driver 53 drives the valve body 52 to continue moving rightward so that the first communication port 511a and the third communication port 511c are both located on the left side of the first stopper 521, the first stopper 521 closes the second communication port 511b, and the first communication port 511a and the third communication port 511c are both open, the control valve 5 is in the third state to achieve discharge of the liquid (e.g., sewage) in the mounting chamber 10 a.
It is understood that the relative positions of the first communication port 511a, the second communication port 511b and the third communication port 511c on the sliding passage 511 may be specifically set according to actual situations to better meet practical applications.
In the embodiment of the present invention, the driver 53 is a magnetic member, and the valve core 52 is a component adapted to be attracted by the magnetic member, so that the valve core 52 can move along the sliding channel 511 under the driving of the driver 53 to realize the switching of the control valve 5. For example, in the example of fig. 5 to 7, the driving members 53 at both left and right ends of the slide passage 511 are electromagnets, and the valve body 52 is a member adapted to be attracted by the electromagnets. When the electromagnets on the left side and the right side are not electrified, the control valve 5 is in a second state, and at the moment, oil drops in the range hood 200 can flow into the oil containing cup 32, so that the normal operation of the range hood 200 is ensured; when the inner wall of the volute 1 and the surface of the wind wheel 21 need to be cleaned, the electromagnetic valve on the left side is electrified, the electromagnetic valve on the right side is not electrified, the control valve 5 is in the first state, the bottom of the installation cavity 10a is closed at the moment, and fluid flowing into the installation cavity 10a from the water inlet pipeline 41 can be stored, so that subsequent cleaning is facilitated; after the cleaning is finished, the electromagnetic valve on the left side is not electrified, the electromagnetic valve on the right side is electrified, the control valve 5 is in the third state, and at the moment, sewage in the installation cavity 10a can be discharged into the water containing tank 31, so that the discharge of the sewage is realized.
Of course, the valve core 52 may also be an electromagnet, and the driving element 53 may be a magnetic element with multiple magnetic poles, specifically, when the valve core 52 is not electrified, the control valve 5 is in the second state; energizing the spool 52, adjusting the magnetic pole of the driver 53 on the side toward the spool 52 so that the spool 52 moves leftward to switch the control valve 5 to the first state; energizing the spool 52, adjusting the magnetic pole of the driver 53 on the side toward the spool 52, causes the spool 52 to move rightward, switching the control valve 5 to the third state. But is not limited thereto.
Further, as shown in fig. 1, 2 and 4, one end of the water inlet pipeline 41 is provided with a nozzle 6, so that the fluid on the water inlet pipeline 41 can be sprayed to the surface of the wind wheel 21 through the nozzle 6 more uniformly, and the cleaning effect of the fluid on the wind wheel 21 is ensured.
In the embodiment of the present invention, the water inlet line 41 is provided with a first pump body 71 and a heating assembly 8. For example, as shown in fig. 2 to fig. 4, the first pump body 71 may be connected in series to the water inlet pipeline 41 to drive the fluid in the water inlet pipeline 41 to flow, so as to facilitate the location of the water containing tank 31, for example, the water containing tank 31 may be located at the lower portion of the range hood 200; the heating assembly 8 can heat the fluid in the water inlet pipeline 41, so that the heated fluid flows into the installation cavity 10a to better remove oil stains on the inner wall surface of the volute 1 and the surface of the wind wheel 21, and the cleaning effect is ensured.
In particular, the first pump 71 may be located upstream of the water inlet line 41, the heating assembly 8 is located downstream of the water inlet line 41, and the heating assembly 8 includes a heater 81 and a heating chamber, wherein the heating chamber is serially disposed on the water inlet line 41, and the heater 81 heats fluid in the heating chamber. Here, the terms "upstream" and "downstream" refer to upstream and downstream, respectively, in the flow direction of the fluid in the water inlet pipe 41.
It is understood that the heater 81 may be disposed in series on the water inlet pipe 41, and when the fluid in the water inlet pipe 41 flows through the heating assembly 8, the heater 81 may directly contact the water inlet pipe to heat the water inlet pipe; alternatively, the heater 81 may be disposed outside the water inlet line 41, such that when the fluid in the water inlet line 41 flows through the heating assembly 8, the heater 81 does not contact the fluid in the heating chamber to indirectly heat the fluid. But is not limited thereto.
Further, a temperature sensor 9 is disposed at a position close to the heating assembly 8 to detect the temperature of the fluid in the water inlet pipe 41, so as to determine the state of the fluid in the water inlet pipe 41. It is understood that the temperature sensor 9 may sense the temperature of the fluid in the water inlet line 41 indirectly by sensing the temperature of the heater 81 of the heating assembly 8, or may sense the temperature of the fluid directly by directly contacting the fluid in the water inlet line 41.
Optionally, a second pump body 72 is provided on the drain line 42. For example, as shown in fig. 1 and 2, the second pump body 72 is serially connected to the drain line 42, so that the liquid (e.g., sewage) in the drain line 42 flows into the water containing tank 31 after flowing through the second pump body 72, and thus the second pump body 72 can increase the flow rate of the liquid in the drain line 42, thereby ensuring the smoothness of the drain line 42. The second pump body 72 may be a micro booster pump, but is not limited thereto.
The extractor hood 200 according to the second aspect embodiment of the present invention comprises the cleaning device of the extractor hood 200 according to the first aspect embodiment of the present invention.
According to the range hood 200 provided by the embodiment of the invention, by adopting the cleaning device, the range hood 200 can be effectively cleaned on the premise of not influencing the normal operation of the range hood 200, and the oil smoke absorption effect of the range hood 200 is ensured, so that the cleanness of the kitchen environment is ensured, and meanwhile, the water consumption for cleaning is saved.
Other constructions and operations of the range hood 200 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.
According to the third aspect of the present invention, the method for controlling the cleaning device of the extractor hood 200, the cleaning device is the cleaning device of the extractor hood 200 according to the first aspect of the present invention, and the method for controlling the cleaning device includes:
starting the control valve 5 to enable the control valve 5 to be in a first state, and introducing fluid into the installation cavity 10 a;
after a first predetermined time, rotating the wind wheel 21;
after a second predetermined time, the control valve 5 is switched to a third state;
after a third predetermined time, the control valve 5 is switched to the second state.
Specifically, the control valve 5 is switched to the first state, the second communication port 511b and the third communication port 511c are both closed, the bottom of the installation cavity 10a is closed at this time, the fluid in the water containing tank 31 is sent into the installation cavity 10a through the water inlet pipeline 41, and the fluid is gathered at the bottom of the installation cavity 10a or the fluid is gathered at the bottom of the installation cavity 10a after being liquefied; after a first preset time, the water containing tank 31 stops supplying fluid, a certain amount of liquid is stored in the installation cavity 10a, the motor 22 drives the wind wheel 21 to rotate so as to stir the liquid, so that the liquid effectively washes the inner wall of the volute 1 and the surface of the wind wheel 21, and the liquid is prevented from being spilled out of the volute 1 due to overlarge fluctuation; after the second preset time, the cleaning is completed, the control valve 5 is switched to the third state, the first communication port 511a and the third communication port 511c are opened, the second communication port 511b is closed, at this time, the installation cavity 10a is communicated with the drainage pipeline 42, the drainage pipeline is disconnected, the liquid in the installation cavity 10a can be drained into the water containing tank 31 along the drainage pipeline 42 until the liquid is completely drained, and at this time, the motor 22 drives the wind wheel 21 to rotate, so that the liquid remained in the volute 1 is dried; after a third preset time, the control valve 5 is switched to the second state, the first communication port 511a and the second communication port 511b are opened, the third communication port 511c is closed, at this time, the installation cavity 10a is communicated with the oil discharge pipeline, the water discharge pipeline 42 is disconnected, the range hood 200 can continue to operate normally, and the generated oil drops are gathered at the bottom of the installation cavity 10a and flow into the oil containing cup 32 along the oil discharge pipeline under the action of gravity.
According to the control method of the cleaning device of the range hood 200 provided by the embodiment of the invention, on the premise of not influencing the normal operation of the range hood 200, the cleaning effect of the range hood 200 is ensured, and meanwhile, the cleaning device is convenient to control and operate.
In the specific embodiment of the invention, after the fluid is introduced into the installation cavity 10a and the first preset time passes, the height of the liquid fluid in the installation cavity 10a is H1, and the distance between the rotating shaft of the wind wheel 21 and the inner bottom wall of the installation cavity 10a is H2, wherein H1 is not more than H2. An air inlet is formed on the volute 1, the rotating shaft of the wind wheel 21 is positioned at the air inlet, and the height H1 of the liquid fluid in the mounting cavity 10a is smaller than or equal to the distance H2 between the rotating shaft of the wind wheel 21 and the inner bottom wall of the mounting cavity 10a, so that the liquid fluid is prevented from spilling out of the volute 1 due to high liquid level in the rotating process of the wind wheel 21.
Further, the radial length of the blades of the wind wheel 21 is H, and H is less than H1, and at this time, in the rotating process of the wind wheel 21, each blade of the wind wheel 21 can be completely immersed in the liquid fluid, so that the liquid fluid can wash the blades of the wind wheel 21 comprehensively, and the cleaning effect is ensured.
As shown in fig. 2 to fig. 4, the water inlet pipeline 41 is provided with a first pump body 71 and a heating assembly 8, the first pump body 71 can drive the fluid in the water inlet pipeline 41 to flow, and the heating assembly 8 can heat the fluid in the water inlet pipeline 41. The duty ratio of the power supply of the first pump body 71 and the temperature of the heating assembly 8 are adjusted so that at least part of the fluid entering the installation cavity 10a is gas. That is, the duty cycle of the power supply of the first pump body 71 is decreased to decrease the fluid flow rate of the first pump body 71, and the duty cycle of the power supply of the heating assembly 8 is increased to increase the power of the heating assembly 8, so as to increase the temperature of the heating assembly 8, so that the heating assembly 8 can rapidly heat at least a part of the liquid fluid in the water inlet pipeline 41 to the gas state. It is understood that the duty cycle of the power supply of the first pump body 71 and the adjustment range of the temperature of the heating assembly 8 can be adjusted according to actual conditions, so as to adjust the temperature of the fluid entering the installation cavity 10a, so that the fluid can be in a gas state, a liquid state or a gas-liquid mixed state.
Specifically, the water containing tank 31 contains normal-temperature clean water, the control valve 5 is switched to the first state, the power duty ratio of the first pump body 71 is reduced, and the power duty ratio of the heating assembly 8 is improved, at the moment, the heating assembly 8 can heat the normal-temperature clean water in the water inlet pipeline 41 into steam, the steam is sprayed to the wind wheel 21 from the second end of the water inlet pipeline 41, meanwhile, the motor 22 drives the wind wheel 21 to rotate, the steam is uniformly sprayed to the surface of the wind wheel 21, and therefore oil stains on the surface of the wind wheel 21 are heated and softened; the duty ratio of the power supply of the first pump body 71 is increased, the duty ratio of the power supply of the heating assembly 8 is reduced, at the moment, the heating assembly 8 can heat the normal-temperature clean water in the water inlet pipeline 41 into hot water, the hot water is sprayed to the wind wheel 21 from the second end of the water inlet pipeline 41, and the hot water is gathered at the bottom of the installation cavity 10a under the action of gravity; after a first preset time, the first pump body 71 and the heating assembly 8 stop running, a certain amount of hot water is stored in the installation cavity 10a, and the motor 22 drives the wind wheel 21 to rotate, so that the surface of the wind wheel 21 and the inner wall of the volute 1 can be effectively flushed by the hot water; after the second preset time, the cleaning is finished, the control valve 5 is switched to the third state, the hot water in the installation cavity 10a can be completely discharged into the water containing tank 31 along the water discharge pipeline 42 until the hot water is completely discharged, and at the moment, the motor 22 drives the wind wheel 21 to rotate, so that the residual liquid in the volute 1 is dried; after the third preset time, the control valve 5 is switched to the second state, and the range hood 200 can continue to operate normally.
From this, through the power duty cycle of the adjustment first pump body 71, the temperature of heating element 8, the adjustment gets into the fluidic temperature or the state in installation cavity 10a to wash steam and combine with hot water, utilize a small amount of water to realize great impact force, promoted decontamination effect, thereby under the prerequisite of guaranteeing the cleaning performance, can practice thrift the washing water.
Specifically, after a first predetermined time, the wind wheel 21 rotates at a first rotational speed, thereby stirring the liquid, so that the liquid effectively washes the inner wall of the volute 1 and the surface of the wind wheel 21; after the second preset time, the cleaning is finished, the control valve 5 is switched to the third state, the liquid in the mounting cavity 10a is discharged, after the first preset time, the liquid in the mounting cavity 10a is completely discharged into the water containing tank 31, and the wind wheel 21 rotates at the second rotating speed for the second preset time, so that the residual liquid in the volute 1 is dried. And the sum of the first sub-preset time and the second sub-preset time is less than or equal to a third preset time. Thereby, the washing and the spin-drying of the wind wheel 21 and the volute 1 are realized.
It will be appreciated that the first rotational speed may be a range of rotational speeds, or may be a specific rotational speed.
Further, the first rotating speed is lower than the second rotating speed, that is, the rotating speed of the wind wheel 21 in the cleaning process is lower, so that the liquid is fully contacted with the wind wheel 21 and the volute 1, and the cleaning effect is improved; and the rotating speed of the wind wheel 21 in the spin-drying process is larger, so that the spin-drying efficiency is improved.
Referring to fig. 1-7, a range hood 200 according to an embodiment of the present invention is described in detail, where the cleaning device of the range hood 200 can effectively clean the range hood 200 without affecting the normal use of the range hood 200. It is to be understood that the following description is only exemplary, and not a specific limitation of the invention.
As shown in fig. 1-7, the range hood 200 includes a cleaning device, and the cleaning device includes a volute 1, a wind wheel 21, a water tank 31, an oil cup 32, a water inlet pipe 41, a water discharge pipe 42, an oil discharge pipe, a control valve 5, a nozzle 6, a first pump body 71, a second pump body 72, a heating assembly 8, a temperature sensor 9, and a control module 10.
The range hood comprises a volute 1, a wind wheel 21, a water containing tank 31, an oil containing cup 32 and a mounting cavity 10a, wherein the volute 1 is internally provided with the mounting cavity 10a in a limited mode, the wind wheel 21 is rotatably arranged in the mounting cavity 10a, the water containing tank is positioned outside the volute 1 and is used for containing normal-temperature clear water or sewage, and the oil containing cup is positioned outside the volute 1 and is used for collecting oil drops of the range hood 200. The first end of the water inlet pipeline 41 is communicated with the water containing tank 31, the second end of the water inlet pipeline 41 is communicated with the mounting cavity 10a, the nozzle 6 is arranged at the second end of the water inlet pipeline 41 to spray water or steam to the wind wheel 21, the first pump body 71 is connected in series on the water inlet pipeline 41 to drive the fluid in the water inlet pipeline 41 to flow, and the heating assembly 8 is arranged on the water inlet pipeline 41 to heat the fluid in the water inlet pipeline 41 into steam or hot water or a mixture of the steam and the hot water. The first end of the drainage pipeline 42 is communicated with the bottom of the installation cavity 10a, the second end of the drainage pipeline 42 is communicated with the water containing tank 31, the second pump body 72 is serially connected with the drainage pipeline 42 to drive fluid in the drainage pipeline 42 to flow, the first end of the oil drainage pipeline is communicated with the bottom of the installation cavity 10a, and the second end of the oil drainage pipeline is communicated with the oil containing cup 32.
The control valve 5 is positioned below the volute 1 to control the on-off of the oil drainage pipeline and the water drainage pipeline 42, when the control valve 5 is in a first state, the oil drainage pipeline and the water drainage pipeline 42 are both disconnected, and at the moment, the bottom of the installation cavity 10a is closed; when the control valve 5 is in the second state, the oil discharge pipeline is communicated and the water discharge pipeline 42 is disconnected; when the control valve 5 is in the third state, the drain line is disconnected and the drain line 42 is connected.
The control valve 5 includes a main body 51, a valve body 52, and a driver 53, the main body 51 has a slide passage 511 extending linearly in the left-right direction, the slide passage 511 has a first communication port 511a, a second communication port 511b, and a third communication port 511c that are spaced apart, the first communication port 511a is located above the slide passage 511 and the first communication port 511a communicates with the bottom of the mounting chamber 10a, the second communication port 511b is located below the slide passage 511 and the second communication port 511b communicates with the drain line, and the third communication port 511c is located below the slide passage 511 and the third communication port 511c communicates with the drain line 42. The valve core 52 slides left and right in the sliding channel 511, the valve core 52 comprises a first stop 521, a second stop 522 and a connecting rod 523 connected between the first stop 521 and the second stop 522, the two driving members 53 are respectively positioned at the left end and the right end of the main body part 51 and are suitable for driving the valve core 52 to move left and right, wherein the driving members 53 are electromagnets.
When the electromagnets on the left side and the right side are not electrified, and the first communication port 511a and the second communication port 511b are both located between the right side wall of the first stopper 521 and the left side wall of the second stopper 522, the first stopper 521 closes the third communication port 511c, and the first communication port 511a and the second communication port 511b are both open, at this time, the control valve 5 is in the second state, oil droplets in the range hood 200 can sequentially pass through the first communication port 511a and the second communication port 511b to flow into the oil containing cup 32, so that normal operation of the range hood 200 is ensured; when the electromagnetic valve on the left side is energized and the electromagnetic valve on the right side is not energized, the valve core 52 moves leftwards until the left side wall of the first stop 521 abuts against the wall surface of the sliding channel 511, so that the first stop 521 closes the third communicating port 511c and the second stop 522 closes the second communicating port 511b, and at the moment, the control valve 5 is in the first state and can store clean water flowing from the water inlet pipeline 41 into the installation cavity 10a, so that subsequent cleaning is facilitated; when the left solenoid valve is not energized and the right solenoid valve is energized, the valve body 52 moves rightward until the first communication port 511a and the third communication port 511c are both positioned on the left side of the first stopper 521, so that the first stopper 521 closes the second communication port 511b and the first communication port 511a and the third communication port 511c are both open, and at this time, the control valve 5 is in the third state, and the sewage in the installation chamber 10a can be discharged into the water containing tank 31 through the first communication port 511a and the third communication port 511c in sequence.
The specific cleaning process comprises the following steps: the water containing tank 31 contains normal-temperature clean water, the control valve 5 is switched to the first state, the control module 10 reduces the power duty ratio of the first pump body 71 and improves the power duty ratio of the heating assembly 8, at the moment, the heating assembly 8 can heat the normal-temperature clean water in the water inlet pipeline 41 into steam, the steam is sprayed to the wind wheel 21 from the second end of the water inlet pipeline 41, meanwhile, the motor 22 frequently stirs to drive the wind wheel 21 to slowly rotate at the first rotating speed, the steam is uniformly sprayed to the surface of the wind wheel 21, oil stains on the surface of the wind wheel 21 are heated and softened, meanwhile, a large impact force is achieved by using a small amount of clean water, and the cleaning effect is improved; the control module 10 increases the power duty ratio of the first pump body 71 and decreases the power duty ratio of the heating assembly 8, at this time, the heating assembly 8 can heat the normal-temperature clean water in the water inlet pipeline 41 into hot water at 50-90 ℃, the hot water is sprayed to the wind wheel 21 from the second end of the water inlet pipeline 41, and the hot water is gathered at the bottom of the installation cavity 10a due to the action of gravity; after the first preset time, the first pump body 71 and the heating assembly 8 stop operating, a certain amount of hot water is stored in the installation cavity 10a, and the radial length H of the blades of the wind wheel 21, the height H1 of the hot water and the distance H2 between the rotating shaft of the wind wheel 21 and the inner bottom wall of the installation cavity 10a satisfy the following conditions: h1 is more than H1 and less than or equal to H2, so that hot water can cover the wind wheel 21, the hot water is prevented from spilling out of the volute 1, the motor 22 frequently clicks to drive the wind wheel 21 to slowly rotate in a pulsating mode at a first rotation speed, and therefore the surface of the wind wheel 21 and the inner wall of the volute 1 can be fully and effectively washed by the hot water, and the cleaning effect is guaranteed; after the second preset time, the cleaning is finished, the control valve 5 is switched to the third state, the sewage in the installation cavity 10a can be completely discharged into the water containing tank 31 along the drainage pipeline 42 until the sewage is completely discharged and lasts for the first sub-preset time, at the moment, the motor 22 drives the wind wheel 21 to rotate at the second rotating speed for the second sub-preset time at a high speed, and the second rotating speed is greater than the first rotating speed, so that the residual liquid in the volute 1 is dried, and the drying efficiency is improved; the control valve 5 is switched to the second state, and the range hood 200 can continue to operate normally.
The range hood provided by the embodiment of the invention has a good cleaning effect, the water consumption for cleaning is reduced, and the cleaning device of the range hood is convenient to control and operate and brings great convenience to users.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. A cleaning device of a range hood is characterized by comprising:
a volute defining a mounting cavity therein;
the wind wheel is positioned in the mounting cavity;
a water holding tank located outside the volute;
an oil cup located outside the volute;
one end of the water inlet pipeline is communicated with the installation cavity, and the other end of the water inlet pipeline is communicated with the water containing tank so as to introduce fluid into the installation cavity;
one end of the drainage pipeline is communicated with the bottom of the installation cavity, and the other end of the drainage pipeline is communicated with the water containing tank so as to discharge liquid in the installation cavity;
one end of the oil discharge pipeline is communicated with the bottom of the mounting cavity, and the other end of the oil discharge pipeline is communicated with the oil containing cup so as to discharge oil drops of the range hood; and
the control valve is used for controlling the on-off of the oil drainage pipeline and the water drainage pipeline, the control valve has a first state, a second state and a third state, and when the control valve is in the first state, the oil drainage pipeline and the water drainage pipeline are both disconnected; when the control valve is in a second state, the oil discharge pipeline is communicated, and the water discharge pipeline is disconnected; when the control valve is in a third state, the oil discharge pipeline is disconnected, and the water discharge pipeline is communicated; the control valve includes:
the main body part is provided with a sliding channel, the sliding channel is provided with a first communication port, a second communication port and a third communication port which are spaced, the first communication port is communicated with the installation cavity, the second communication port is communicated with the oil containing cup, and the third communication port is communicated with the drainage pipeline;
the valve core slides in the sliding channel to control the opening or closing of the first communication port to the third communication port;
when the control valve is in a first state, the second communication port and the third communication port are both closed; when the control valve is in the second state, the first communication port and the second communication port are opened, and the third communication port is closed; when the control valve is in a third state, the first communication port and the third communication port are opened, and the second communication port is closed; the sliding channel extends along a straight line, driving parts are arranged at two ends of the sliding channel in the length direction and are suitable for driving the valve core to move, the first communication port is positioned at one side of the sliding channel, and the second communication port and the third communication port are positioned at the other side of the sliding channel,
the valve core includes:
a first stopper adapted to close the second communication port or the third communication port;
the second stop block is spaced from the first stop block and is suitable for closing the second communication port; and
and one end of the connecting rod is connected with the first stop block, and the other end of the connecting rod is connected with the second stop block.
2. The extractor hood cleaning device according to claim 1, wherein the driving member is a magnetic member, and the valve core is a component adapted to be attracted by the magnetic member.
3. The cleaning device for a range hood according to claim 1, wherein a nozzle is provided at one end of the water inlet pipeline.
4. The extractor hood cleaning device of claim 1, wherein the water inlet pipeline is provided with a first pump body and a heating component.
5. The extractor hood cleaning device of claim 4, wherein a temperature sensor is disposed adjacent to the heating assembly.
6. The cleaning device for a range hood according to claim 1, wherein a second pump body is arranged on the drainage pipeline.
7. A range hood comprising a cleaning apparatus of a range hood as claimed in any one of claims 1 to 6.
8. A control method of a cleaning device of a range hood, wherein the cleaning device is a cleaning device of a range hood according to any one of claims 1 to 6, the control method comprising:
starting the control valve to enable the control valve to be in the first state, and introducing fluid into the installation cavity;
rotating the wind wheel after a first preset time;
after a second predetermined time, the control valve is switched to the third state;
after a third predetermined time, the control valve switches to the second state.
9. The control method of the range hood cleaning device according to claim 8, wherein after the fluid is introduced into the mounting cavity and the first predetermined time elapses, the height of the liquid fluid in the mounting cavity is H1, the distance between the rotating shaft of the wind wheel and the inner bottom wall of the mounting cavity is H2, wherein H1 is not less than H2.
10. The control method of the cleaning device for the range hood according to claim 8, wherein the water inlet pipeline is provided with a first pump body and a heating component;
adjusting the power duty cycle of the first pump body and the temperature of the heating assembly to ensure that at least part of the fluid entering the mounting cavity is gas.
11. The control method of a cleaning device of a range hood according to claim 8,
after first preset time, the wind wheel rotates at a first rotating speed;
after the second preset time, the control valve is switched to the third state, and after the first sub-preset time, the wind wheel rotates at a second rotating speed for a second sub-preset time,
and the sum of the first sub-preset time and the second sub-preset time is less than or equal to the third preset time.
12. The method for controlling a cleaning device of a range hood according to claim 11, wherein the first rotation speed is less than the second rotation speed.
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| CN201710685345.9A CN107355835B (en) | 2017-08-11 | 2017-08-11 | Cleaning device of range hood, control method of cleaning device and range hood |
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| CN201710685345.9A CN107355835B (en) | 2017-08-11 | 2017-08-11 | Cleaning device of range hood, control method of cleaning device and range hood |
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| CN109028201A (en) * | 2018-05-21 | 2018-12-18 | 佛山市顺德区美的洗涤电器制造有限公司 | Range hood and its method, cleaning device and storage medium |
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| CN110201924B (en) * | 2018-09-07 | 2022-04-05 | 华帝股份有限公司 | Control method for automatic cleaning of range hood |
| CN109373410B (en) * | 2018-12-20 | 2019-10-18 | 湖北科技学院 | A kind of no-flue range hood free of cleaning |
| CN109386864B (en) * | 2018-12-20 | 2019-11-29 | 湖北科技学院 | A kind of use of range hood and cleaning method |
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