CN112228929A - Range hood and control method thereof - Google Patents
Range hood and control method thereof Download PDFInfo
- Publication number
- CN112228929A CN112228929A CN202010922991.4A CN202010922991A CN112228929A CN 112228929 A CN112228929 A CN 112228929A CN 202010922991 A CN202010922991 A CN 202010922991A CN 112228929 A CN112228929 A CN 112228929A
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- China
- Prior art keywords
- baffle
- guide plate
- connecting rod
- smoke
- transmission mechanism
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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
- F24C15/2021—Arrangement or mounting of control or safety systems
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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
- F24C15/2078—Removing cooking fumes movable
- F24C15/2092—Removing cooking fumes movable extendable or pivotable
Abstract
The invention discloses a range hood, which comprises a smoke collecting hood and a smoke guide plate assembly, wherein a smoke collecting cavity is formed in the smoke collecting hood, the smoke collecting hood is in an open shape at the bottom of the smoke collecting cavity, the smoke guide plate assembly comprises a smoke guide plate and two baffle plates, at least part of one baffle plate is positioned on the left side of the smoke guide plate, at least part of the other baffle plate is positioned on the right side of the smoke guide plate, and the range hood is characterized in that: the smoke guide plate can be positioned at a first position, the smoke guide plate is positioned in the middle of the bottom of the smoke collection cavity at the moment, the smoke guide plate can also be positioned at a second position, and the smoke guide plate is positioned below the smoke collection cavity at the moment; each baffle plate can be in a third position, and the baffle plates extend to the middle of the upper surface of the smoke guide plate from the left side or the right side of the bottom of the smoke collecting hood at the moment; each baffle can also be in a fourth position, in which the baffle is flipped over to separate from the smoke guide. Also discloses a control method of the range hood.
Description
Technical Field
The invention relates to an oil fume purification device, in particular to a range hood and a control method of the range hood.
Background
The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The range hood works by utilizing the fluid dynamics principle, sucks and exhausts oil smoke through a centrifugal fan arranged in the range hood, and filters partial grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated in the center of the fan, oil smoke below the range hood is sucked into the fan, accelerated by the fan and then collected and guided by the volute to be discharged out of a room.
Generally, the range hood comprises a top suction type range hood and a side suction type range hood, and the top suction type range hood has more and more extensive application due to the advantages of neatness, lightness, small occupied space and the like. The top-suction type range hood generally includes a fume collecting hood, a fan housing located on the fume collecting hood, and a volute, an impeller, and a motor for driving the impeller are installed in the fan housing.
The existing top suction type range hood generally has the following three problems:
1) after the range hood is installed with the cabinet in a matching way, a large gap is formed between the cabinet and the smoke collecting hood, and oil smoke is easy to escape from the gap and is condensed and accumulated on the cabinet;
2) at present, a commodity house in the market is basically a public flue, and in order to prevent oil smoke in the public flue from flowing backwards, a check valve is usually additionally arranged on a range hood, so that the structure is more complex;
3) the range hood in the existing market is difficult to realize that the air inlet of the range hood is positioned in a gold smoke suction area when cooking is carried out on a single side or big or small fire, or the smoke collecting hood is small and cannot effectively collect smoke, so that the smoke leakage is caused when the big oil smoke of a user is cooked, and the health of the user is influenced.
Disclosure of Invention
The first technical problem to be solved by the invention is to provide a range hood aiming at the defects in the prior art, which can avoid oil smoke from escaping, prevent the oil smoke in a public flue from flowing back into a kitchen, ensure that the oil smoke does not escape through a gap between the oil smoke and a cabinet, and avoid oil accumulation at the gap of the cabinet.
The second technical problem to be solved by the present invention is to provide a control method for the above range hood.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides a range hood, includes collection petticoat pipe and smoke deflector subassembly, be formed with the collection smoke chamber in the collection petticoat pipe, the collection petticoat pipe is uncovered form, its characterized in that in the bottom position in collection smoke chamber: lead the cigarette board subassembly including leading cigarette board and two baffles, one of them baffle is partial to be located leads the cigarette board left side at least, and another baffle is partial to be located leads the cigarette board right side, its characterized in that at least:
the smoke guide plate can be positioned at a first position, the smoke guide plate is positioned in the middle of the bottom of the smoke collection cavity at the moment, the smoke guide plate can also be positioned at a second position, and the smoke guide plate is positioned below the smoke collection cavity at the moment;
each baffle plate can be in a third position, and the baffle plates extend to the middle of the upper surface of the smoke guide plate from the left side or the right side of the bottom of the smoke collecting hood at the moment; each baffle can also be positioned at a fourth position, and the baffle is turned over and separated from the smoke guide plate;
when the smoke guide plate is at the first position and the baffle is at the third position, the smoke guide plate component seals the bottom of the smoke collection cavity, and the range hood is closed; when the smoke guide plate is at the second position and/or at least one of the baffles is at the fourth position, the smoke guide plate component opens the bottom of the smoke collection cavity, and the range hood works.
Preferably, for cleaning, the part of each baffle corresponding to the smoke guide plate is recessed upwards to form a groove by the lower surface, and when the smoke guide plate is in the first position and the baffle is in the third position, the lower surface of the baffle and the lower surface of the smoke guide plate are flush.
Preferably, in order to facilitate the automatic driving of the smoke guide plate assembly, the range hood further comprises a fan frame arranged above the smoke collecting hood and a motion mechanism used for driving the smoke guide plate assembly, the motion mechanism comprises a driving mechanism, a first connecting rod assembly corresponding to each baffle and a transmission mechanism used for transmitting the output of the driving mechanism to the first connecting rod assembly, the transmission mechanism is arranged at the output end of the driving mechanism and can perform lifting motion, the first connecting rod assembly comprises a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected with the fan frame, the other end of the first connecting rod downwards penetrates through the smoke collecting hood and is rotatably connected with the corresponding baffle, one end of the second connecting rod can be rotatably connected with or separated from the transmission mechanism, the other end of the second connecting rod downwards penetrates through the smoke collecting hood and is rotatably connected with the corresponding baffle, the second connecting rod is also rotatably connected with the fan frame, and the smoke guide plate is provided with a, the top end of the first sliding rod can be in contact with or separated from the transmission mechanism.
Preferably, the driving mechanism is a linear driving module, the driving mechanism comprises a motor and a screw rod connected with an output shaft of the motor, and the screw rod penetrates through the transmission mechanism and is in threaded connection with the transmission mechanism, so that the transmission mechanism can be driven to lift.
In order to facilitate the separation and connection among the connecting rods, the first sliding rod and the transmission mechanism, the transmission mechanism is a sliding part, the movement mechanism further comprises a solenoid valve assembly, the solenoid valve assembly comprises a first solenoid valve, a second solenoid valve and a third solenoid valve, the first solenoid valve, the second solenoid valve and the third solenoid valve can be connected with or separated from the sliding part, the first solenoid valve is arranged at the top end of the first sliding rod, and the second solenoid valve and the third solenoid valve are respectively and rotatably connected with the end part of the second connecting rod of one of the first connecting rod assemblies.
In order to facilitate the separation and connection among the connecting rod, the first sliding rod and the transmission mechanism, each electromagnetic valve is provided with an extensible electromagnetic rod, and a sliding rail into which the electromagnetic rod can be inserted is formed in a concave position of the sliding part corresponding to each electromagnetic rod.
In order to facilitate the arrangement of the driving mechanism and the transmission mechanism, the front side of the fan frame is provided with a mounting support, a containing cavity is formed in the mounting support, first sliding grooves which are sunken outwards are formed in two opposite side walls of the containing cavity respectively, and the sliding component comprises a sliding block which can be in sliding fit with the first sliding grooves.
For making the baffle overturn smoothly, the motion still includes the second link assembly that corresponds with every baffle, one of them is located fan frame front side, another is located fan frame rear side of first link assembly and second link assembly, and every second link assembly includes third connecting rod and fourth connecting rod, the one end and the fan frame of third connecting rod rotate to be connected, the other end passes collection petticoat pipe downwards and is connected with corresponding baffle rotation, the one end and the fan frame of fourth connecting rod rotate to be connected, the other end passes collection petticoat pipe downwards and is connected with corresponding baffle rotation.
In order to ensure the moving path of the smoke guide plate, a second sliding rod extending upwards is arranged in the middle of the rear side of the smoke guide plate, a second sliding groove extending longitudinally is formed in the rear side of the fan frame, and the second sliding rod is used for being in sliding fit with the second sliding groove.
The technical scheme adopted by the invention for solving the second technical problem is as follows: a control method of the range hood is characterized in that: the method comprises the following steps:
1) the range hood is started, the smoke guide plate is at the first position, and the baffle is at the third position;
2) the cooking appliance judges or the user selects whether to cook on two sides, if so, the step 3) is carried out; if not, when the single-side left side cooking is needed, the step 6) is carried out, and when the single-side right side cooking is needed, the step 7) is carried out;
3) connecting each second connecting rod with the transmission mechanism, the first sliding rod and the transmission mechanism;
4) the driving mechanism drives the transmission mechanism to move downwards to drive the second connecting rod of the first connecting rod assembly to rotate around the position connected with the fan frame, the first connecting rod is driven to rotate around the position connected with the fan frame, so that one end, close to each other, of the baffle is turned upwards to incline, and the baffle integrally moves towards the outer side far away from the smoke guide plate to reach a fourth position; meanwhile, as the transmission mechanism moves downwards, the transmission mechanism pushes the smoke guide plate to move downwards to a second position through the first sliding rod, so that the smoke collection cavity is opened, and the fan of the range hood is opened;
5) if left-side single-side cooking is needed, the first sliding rod and the second connecting rod of the first connecting rod assembly on the left side are respectively separated from the transmission mechanism, the position of the baffle on the left side and the position of the smoke guide plate are locked, and the transmission mechanism moves upwards to drive the baffle on the right side to return to the third position; if the cooking on the right side is needed, the second connecting rods of the first sliding rod and the first connecting rod assembly on the right side are respectively separated from the transmission mechanism, the position of the baffle on the right side and the position of the smoke guide plate are locked, and the transmission mechanism moves upwards to drive the baffle (32) on the left side to return to the third position; until the work of the range hood is finished or the user selects the cooking mode again;
6) if the left-side single-side cooking is needed, the first sliding rod and the second connecting rod of the first connecting rod assembly on the left side are respectively connected with the transmission mechanism, the driving mechanism drives the transmission mechanism to move downwards to drive the second connecting rod of the first connecting rod assembly on the left side to rotate around the position connected with the fan frame, the first connecting rod on the left side is driven to rotate around the position connected with the fan frame, so that one end, close to the other baffle, of the baffle on the left side is turned upwards to incline, and the baffle integrally moves towards the outer side far away from the smoke guide plate to reach a fourth position; meanwhile, as the transmission mechanism moves downwards, the transmission mechanism pushes the smoke guide plate to move downwards to a second position through the first sliding rod, so that the middle part and the left part of the smoke collection cavity are opened, the fan of the range hood is started, and the step 8) is carried out;
7) if the right-side single-side cooking is needed, the first sliding rod and the second connecting rod of the first connecting rod assembly on the right side are respectively connected with the transmission mechanism, the driving mechanism drives the transmission mechanism to move downwards to drive the second connecting rod of the first connecting rod assembly on the right side to rotate around the position connected with the fan frame, the first connecting rod on the right side is driven to rotate around the position connected with the fan frame, so that one end, close to the other baffle, of the baffle on the right side is turned upwards to incline, and the baffle integrally moves towards the outer side far away from the smoke guide plate to reach a fourth position; meanwhile, as the transmission mechanism moves downwards, the transmission mechanism pushes the smoke guide plate to move downwards to a second position through the first sliding rod, so that the middle part and the right part of the smoke collection cavity are opened, the fan of the range hood is started, and the step 8) is carried out;
8) if double-side single-side cooking is needed, the second connecting rod corresponding to the opened baffle is separated from the transmission mechanism, the transmission mechanism rises to the closing position, the second connecting rod corresponding to the unopened baffle is connected with the transmission mechanism, then the transmission mechanism moves downwards to drive the unopened baffle to turn over and open, double-side oil smoke absorption is achieved, and the range hood is operated until the range hood is finished or the user selects the cooking mode again.
Compared with the prior art, the invention has the advantages that: the smoke guide plate capable of lifting between the first position and the second position and the baffle plate capable of overturning between the third position and the third position are arranged, so that the smoke collection cavity can be sealed, the oil smoke in a public flue is prevented from flowing backwards, the gap between the cabinet and the smoke collection cavity is well shielded when the baffle plate is opened (the fourth position), the oil smoke is prevented from escaping through the gap, the problem of oil accumulation in the gap of the cabinet is solved, the area of the smoke collection cavity is greatly increased when the baffle plate is opened, and partial oil smoke is prevented from escaping when large oil smoke is collected better; the unilateral air inlet under the unilateral culinary art state can be realized to increase unilateral air inlet speed, avoid the oil smoke to escape.
Drawings
Fig. 1 is a schematic closed state diagram (front view) of a range hood according to an embodiment of the present invention;
fig. 2 is a schematic closing state diagram (rear view) of the range hood according to the embodiment of the present invention;
FIG. 3 is a sectional view of a range hood according to an embodiment of the present invention in a closed state;
fig. 4 is a schematic view (front view) of a smoke guide plate assembly of the range hood and a movement mechanism thereof according to the embodiment of the invention;
fig. 5 is a schematic view (rear view) of a smoke guide plate assembly of the range hood and a movement mechanism thereof according to the embodiment of the invention;
fig. 6 is a schematic view of a baffle plate of a smoke guide plate assembly of the range hood according to the embodiment of the invention;
fig. 7 is a schematic diagram of an electromagnetic valve and a distance sensor of a moving mechanism of a smoke guide plate assembly of a range hood according to an embodiment of the invention;
fig. 8 is a schematic view (front view) of a slider of a moving mechanism of a smoke guide plate assembly of a range hood according to an embodiment of the present invention;
fig. 9 is a schematic view (rear view) of a slider of a moving mechanism of a smoke guide plate assembly of the range hood according to the embodiment of the present invention;
FIG. 10 is a schematic view of a smoke collection hood, a fan frame and part of a movement mechanism of a range hood according to an embodiment of the invention;
fig. 11 is a schematic view of a single side of the range hood according to the embodiment of the present invention;
fig. 12 is a cross-sectional view of a single side of the range hood according to the embodiment of the present invention;
fig. 13 is a schematic view of a range hood according to an embodiment of the present invention with both sides open;
fig. 14 is a cross-sectional view of a range hood according to an embodiment of the present invention;
fig. 15 is a control flowchart of the range hood according to the embodiment of the present invention.
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 functions.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "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 present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Referring to fig. 1 to 3, a range hood, which is a ceiling range hood, includes a fume collecting hood 1, a fan frame 2 disposed above the fume collecting hood 1, and a fan system (not shown) disposed in the fan frame 2. A smoke collecting cavity 11 is formed in the smoke collecting cover 1, an air inlet 12 is formed at the top of the smoke collecting cavity 11, and the smoke collecting cavity 11 is communicated with the air rack 2 through the air inlet 12.
The range hood also comprises a smoke guide plate component and a movement mechanism thereof. The smoke guide plate assembly comprises a smoke guide plate 31 positioned in the middle and baffle plates 32 positioned on the left side and the right side of the smoke guide plate 31, wherein the smoke guide plate 31 is preferably rectangular, and the length direction of the smoke guide plate is the left-right direction. The flap 32 is also preferably rectangular in shape, and its longitudinal direction is the left-right direction in the closed state.
The smoke collecting cover 1 is in an open shape at the bottom position of the smoke collecting cavity 11, when the range hood is in a closed state, the smoke guide plate 31 is positioned in the middle of the bottom of the smoke collecting cavity 11, the left baffle 32 extends to the middle of the upper surface of the smoke guide plate 31 from the left side of the bottom of the smoke collecting cover 1, and the right baffle 32 extends to the middle of the upper surface of the smoke guide plate 31 from the right side of the bottom of the smoke collecting cover 1. At this time, the lower surface of the baffle 32 and the lower surface of the smoke guide plate 31 are flush with each other, and the bottom of the smoke collection chamber 11 is closed, so that the oil smoke in the public flue can be prevented from flowing back into the kitchen. The smoke guide plate 31 can be in a first position, the smoke guide plate 31 is positioned in the middle of the bottom of the smoke collection cavity 11, the smoke guide plate 31 can also be in a second position, and the smoke guide plate 31 is positioned below the smoke collection cavity 11; each baffle 32 can be in a third position, in which the baffle 32 extends from the left side or the right side of the bottom of the fume collecting hood 1 to the middle of the upper surface of the fume guiding plate 31; each baffle 32 can also be in a fourth position, in which the baffle 32 is turned over and separated from the smoke guide plate 31, for example, the baffle 32 can extend obliquely from the inside of the smoke collection chamber 11 to the lower side, and a gap for passing the oil smoke is formed between the baffle 32 and the smoke guide plate 31. When the smoke guide plate 31 is at the first position and the baffle 32 is at the third position, the smoke guide plate component closes the bottom of the smoke collection cavity 11, and the range hood is closed; when the smoke guide plate 31 is in the second position and/or at least one of the baffles 32 is in the fourth position, the smoke guide plate assembly opens the bottom of the smoke collection cavity 11, and the range hood operates.
Referring to fig. 6, to facilitate forming this flush lower surface, the portion of each baffle 32 corresponding to the smoke guide plate 31 is recessed upward from the lower surface to form a groove 323, and when closed, the smoke guide plate 31 is embedded in the grooves 323 of the two baffles 32, so that the lower surface of the portion of the baffle 32 corresponding to the smoke guide plate 31 is higher than the lower surface of the rest of the baffles 32.
Referring to fig. 1 to 10, the moving mechanism includes a driving mechanism, a first link assembly, a second link assembly, a transmission mechanism and a solenoid valve assembly, wherein the driving mechanism is a linear driving module, that is, the output end of the driving mechanism moves along a straight line. In this embodiment, the driving mechanism includes a motor 411, and a screw 412 connected to an output shaft of the motor 411, the motor 411 is disposed above the screw 412, and the screw 412 extends in the longitudinal direction and can rotate around its axis under the driving of the motor 411. The front side of the wind turbine frame 2 is provided with a mounting bracket 413, the mounting bracket 413 is internally provided with an accommodating cavity 414, the motor 411 can be fixed on the inner side of the top of the accommodating cavity 414, and the screw 412 longitudinally extends in the accommodating cavity 414. The left and right side walls of the accommodation cavity 414 are respectively formed with a first sliding slot 415 that is outwardly recessed, and the first sliding slot 415 extends in the longitudinal direction.
A first support 321 and a second support 322 are provided on the upper surface of each baffle 32 at a position close to the other baffle 32, wherein the first support 321 is close to the front side of the baffle 32, and the second support 322 is close to the front side of the baffle 32. The first seats 321 of the two baffle plates 32 are arranged in a staggered manner in the front-rear direction, i.e., not on the same plane in the left-right direction. The second abutments 322 of the two blocking plates 32 are arranged offset in the front-rear direction, i.e., are not located on the same plane in the left-right direction.
The first connecting rod assembly is arranged at a position close to the front side of the smoke guide plate assembly, and the second connecting rod assembly is arranged at a position close to the rear side of the smoke guide plate assembly. One for each baffle 32 and one for each second link assembly 32. The first connecting rod assembly is arranged on the front side of the fan frame 2, and the second connecting rod assembly is arranged on the rear side of the fan frame 2.
Each first link assembly includes a first link 421 and a second link 422, wherein the first link 421 is located on an outer side of the second link 422 (where the outer side is located away from the other shutter 32). One end and the fan frame 2 of first connecting rod 421 rotate to be connected, the other end passes collection petticoat pipe 1 downwards and is connected with the first support 321 of corresponding baffle 32 rotates, the one end and the solenoid valve subassembly of second connecting rod 422 rotate to be connected (this relation of connection will be detailed below), the other end passes collection petticoat pipe 1 downwards and is connected with the first support 321 rotation of corresponding baffle 32, second connecting rod 422 is the form of buckling to first connecting rod 421 direction, the kink and the fan frame 2 of second connecting rod 422 rotate to be connected to confirm the center of rotation of second connecting rod 422. Alternatively, the second connecting rod 422 may be a straight rod, and a position between two ends of the straight rod is rotatably connected to the fan frame 2. In this embodiment, one of the first link assemblies is indirectly rotatably connected to the fan frame 2 via the mounting bracket 413.
Each of the second link assemblies includes a third link 423 and a fourth link 424, wherein the third link 423 is located outside the fourth link 424 (where the outside is located away from the other baffle 32). One end of the third connecting rod 423 is rotatably connected with the fan frame 2, and the other end of the third connecting rod 423 downwards penetrates through the smoke collecting cover 1 to be rotatably connected with the second support 322 of the corresponding baffle 32; one end of the fourth link 424 is rotatably connected to the fan frame 2, and the other end of the fourth link passes through the smoke collecting cover 1 and is rotatably connected to the second support 322 of the corresponding baffle 32.
The rotation shafts of the links extend in the front-rear direction.
The transmission mechanism is a sliding member 43 in this embodiment, and the solenoid valve assembly includes a first solenoid valve 441, a second solenoid valve 442, and a third solenoid valve 443. The slide member 43 is T-shaped, and includes a first support portion 431 extending in the left-right direction and a second support portion 432 extending in the up-down direction, and sliders 433 are provided at both left and right ends of the first support portion 431, respectively. The screw 412 of the drive mechanism is passed through the middle of the first support portion 431 of the slide member 43 and screwed, whereby the slide member 43 can slide up and down when the screw 412 is rotated about its axis by the motor 411. The slider 433 is slidably engaged with the first sliding grooves 415 on both sides of the accommodating cavity 414 of the driving mechanism, so that the sliding member 43 can slide up and down along the first sliding grooves 415.
A first slide bar 311 extending upwards is arranged in the middle of the front side of the smoke guide plate 31, a second slide bar 312 extending upwards is arranged in the middle of the rear side of the smoke guide plate 31, the top end of the first slide bar 311 is positioned below the second supporting part 432 of the sliding part 43, the second slide bar 312 is used for sliding fit with a second slide groove 21 formed in the rear side of the fan frame 2, and the second slide groove 21 extends up and down.
The first solenoid valve 441 is connected to the rear side of the second support portion 432 of the slide member 43 and is positioned above the tip end of the first slider 311, the second solenoid valve 442 is connected to the rear side of the first support portion 431 of the slide member 43, and the third solenoid valve 443 is connected to the front side of the first support portion 431 of the slide member 43. The second solenoid valve 442 and the third solenoid valve 443 are rotatably coupled to an end portion of the second link 422 of one of the first link assemblies, respectively, and the first solenoid valve 441 is coupled to a top end of the first slide bar 311. Each solenoid has a retractable solenoid rod 444.
Referring to fig. 8 and 9, a rear side of the second support part 432 is formed with a first slide rail 4321 recessed from the rear to the front, a rear side of the first support part 431 is formed with a second slide rail 4311 recessed from the rear to the front, and a front side of the first support part 431 is formed with a third slide rail 4312 recessed from the front to the rear. The solenoid rod 444 of the first solenoid valve 441 can be inserted into or disengaged from the corresponding first slide rail 4321, the solenoid rod 444 of the second solenoid valve 442 can be inserted into or disengaged from the corresponding second slide rail 4311, and the solenoid rod 444 of the third solenoid valve 443 can be inserted into or disengaged from the corresponding third slide rail 4312, 4312. The actuation of the electromagnetic rod 444 of the first solenoid valve 441 determines whether the smoke guide plate 31 is actuated, and the actuation of the electromagnetic rod 444 of the second solenoid valve 442 and the third solenoid valve 443 determines whether the shutter 32 is actuated. And a distance sensor 445 is respectively arranged on one side of each electromagnetic valve, which is far away from the corresponding slide rail, and the electromagnetic rod 444 and the distance sensor 445 are positioned at two opposite ends of the same electromagnetic valve.
Referring to fig. 15, the method for controlling a range hood of the present invention includes the following steps:
1) when the range hood is started, the smoke guide plate 31 is at the first position, and the baffle 32 is at the third position;
2) the cooking appliance judges or the user selects whether to cook on two sides, if so, the step 3) is carried out, if not, the step 6) is carried out when the cooking on the left side of one side is needed, and the step 7) is carried out when the cooking on the right side of one side is needed;
3) the electromagnetic rods 444 corresponding to the first electromagnetic valve 441, the second electromagnetic valve 442 and the third electromagnetic valve 443 are ejected into corresponding sliding rails; namely, each second connecting rod is connected with the transmission mechanism, and the first sliding rod 311 is connected with the transmission mechanism;
4) the motor 411 drives the screw 412 to rotate, the sliding part 43 slides downwards, the second link 422 of the first link assembly is driven to rotate around the position connected with the fan frame 2 (the left side shown in fig. 4 is clockwise rotation, and the right side is anticlockwise rotation), the position connected with the baffle 32 is upwards and outwards (the left side second link 422 is leftwards, and the right side second link 422 is rightwards), the first link 421 is driven to rotate around the position connected with the fan frame 2, therefore, the end, close to each other, of the baffle 32 turns upwards to incline, and the baffle 32 moves outwards away from the smoke guide plate 31 as a whole to reach a fourth position; meanwhile, as the sliding part 43 slides downwards, the first electromagnetic valve 441 pushes the first sliding rod 311 to move downwards, so as to drive the smoke guide plate 31 to move downwards to reach the second position, so that the smoke collection cavity 11 is opened, and the fan of the range hood is opened, as shown in fig. 11 and 12;
5) if left-side single-side cooking is needed, the electromagnetic rods 444 of the first electromagnetic valve 441 and the second electromagnetic valve 442 retract, that is, the first sliding rod 311 and the second link 422 of the left-side first link assembly are respectively disengaged from the transmission mechanism, the left baffle 32 and the smoke guide plate 31 are locked, the motor 411 rotates reversely to drive the sliding part 43 to slide upwards, and thus the right baffle 32 is driven to close (a third position), see fig. 13 and 14; if the right-side single-side cooking is needed, the electromagnetic rods 444 of the first electromagnetic valve 441 and the third electromagnetic valve 443 retract, that is, the first sliding rod 311 and the second link 422 of the right-side first link assembly are respectively disengaged from the transmission mechanism, the positions of the right-side baffle 32 and the smoke guide plate 31 are locked, and the motor 411 rotates reversely to drive the sliding part 43 to slide upwards, so as to drive the left-side baffle 32 to close; until the work of the range hood is finished or the user selects the cooking mode again;
6) if left-side single-side cooking is required, the electromagnetic rods 444 of the first electromagnetic valve 441 and the second electromagnetic valve 442 pop out into the corresponding slide rails, that is, the first slide bar 311 and the second link 422 of the left-side first link assembly are respectively connected to the transmission mechanism, the motor 411 rotates to drive the slide member 43 to slide downwards, and drive the second link 422 of the left-side first link assembly to rotate clockwise (clockwise in fig. 4) around the position connected to the fan frame 2, and the position connected to the baffle 32 rotates upwards and outwards (leftwards), and the first link 421 is driven to rotate clockwise around the position connected to the fan frame 2, so that one end of the baffle 32 close to the other baffle 32 turns upwards to incline, and the baffle 32 moves outwards as a whole to reach a fourth position; meanwhile, as the sliding part 43 slides downwards, the first electromagnetic valve 441 pushes the first sliding rod 311 to move downwards, so as to drive the smoke guide plate 31 to move downwards to reach a second position, so that the middle and left parts of the smoke collection cavity 11 are opened, the fan of the range hood is started, and the step 8) is performed;
7) if the right-side single-side cooking is needed, the electromagnetic rods 444 of the first electromagnetic valve 441 and the third electromagnetic valve 443 pop out into the corresponding slide rails, that is, the first slide bar 311 and the second link 422 of the right-side first link assembly are respectively connected to the transmission mechanism, the motor 411 rotates to drive the sliding part 43 to slide downwards, and drive the second link 422 of the right-side first link assembly to rotate counterclockwise (counterclockwise in fig. 4) around the position connected to the fan frame 2, and the position connected to the baffle 32 rotates upward and outward (rightward), and the first link 421 is driven to rotate counterclockwise around the position connected to the fan frame 2, so that one end of the baffle 32 close to the other baffle 32 turns upward and tilts, and the baffle 32 moves outward as a whole to reach a fourth position; meanwhile, as the sliding part 43 slides downwards, the first electromagnetic valve 441 pushes the first sliding rod 311 to move downwards, so as to drive the smoke guide plate 31 to move downwards to reach a second position, so that the middle and right parts of the smoke collection cavity 11 are opened, the fan of the range hood is started, and the step 8) is performed;
8) if double-side single-side cooking is needed, the distance sensor 445 on the electromagnetic valve corresponding to the unopened baffle 32 detects the distance from the corresponding baffle 32, the distance corresponds to the number of turns of the screw 412, the electromagnetic rod 444 of the opened electromagnetic valve corresponding to the baffle 32 retracts to leave the corresponding slide rail on the slide member 43, the motor 411 rotates reversely to drive the slide member 43 to ascend to the closed position, the electromagnetic rod 444 of the electromagnetic valve corresponding to the unopened baffle 32 pops out to enter the corresponding slide rail of the slide member 43, then the motor 411 drives the slide member 43 to move downwards, the moving distance (the number of turns corresponding to the screw 412) is determined by the distance measured by the distance sensor 445, the unopened baffle 32 is driven to overturn and open, double-side oil smoke absorption is realized, and the range hood is finished to work or the user selects the cooking mode again.
During the movement mechanism, the second linkage assembly acts in response to the movement of the flapper 32.
In the present embodiment, the same driving mechanism is used for the smoke guide plate assembly, and alternatively, the smoke guide plate 31 and the baffle 32 may have corresponding driving mechanisms respectively.
Claims (10)
1. The utility model provides a range hood, includes collection petticoat pipe (1) and leads the cigarette board subassembly, be formed with collection smoke chamber (11) in collection petticoat pipe (1), collection petticoat pipe (1) is uncovered form, its characterized in that in the bottom position of collection smoke chamber (11): the smoke guide plate component comprises a smoke guide plate (31) and two baffle plates (32), wherein one baffle plate (32) is at least partially positioned on the left side of the smoke guide plate (31), and the other baffle plate (32) is at least partially positioned on the right side of the smoke guide plate (31), and is characterized in that:
the smoke guide plate (31) can be located at a first position, the smoke guide plate (31) is located in the middle of the bottom of the smoke collection cavity (11), the smoke guide plate (31) can also be located at a second position, and the smoke guide plate (31) is located below the smoke collection cavity (11);
each baffle plate (32) can be in a third position, and the baffle plates (32) extend to the middle of the upper surface of the smoke guide plate (31) from the left side or the right side of the bottom of the smoke collecting hood (1); each baffle plate (32) can also be in a fourth position, and the baffle plates (32) are turned over and separated from the smoke guide plate (31);
when the smoke guide plate (31) is at the first position and the baffle (32) is at the third position, the smoke guide plate component seals the bottom of the smoke collection cavity (11), and the range hood is closed; when the smoke guide plate (31) is at the second position and/or at least one of the baffles (32) is at the fourth position, the smoke guide plate component opens the bottom of the smoke collection cavity (11), and the range hood works.
2. The range hood of claim 1, wherein: the part of each baffle (32) corresponding to the smoke guide plate (31) is upwards sunken from the lower surface to form a groove (323), and when the smoke guide plate (31) is in the first position and the baffle (32) is in the third position, the lower surface of the baffle (32) and the lower surface of the smoke guide plate (31) are flush.
3. The range hood of claim 1 or 2, wherein: the range hood is characterized by further comprising a fan frame (2) arranged above the smoke collecting hood (1) and a motion mechanism used for driving the smoke guide plate assembly, wherein the motion mechanism comprises a driving mechanism, a first connecting rod assembly corresponding to each baffle (32) and a transmission mechanism used for transmitting the output of the driving mechanism to the first connecting rod assembly, the transmission mechanism is arranged at the output end of the driving mechanism and can move up and down, the first connecting rod assembly comprises a first connecting rod (421) and a second connecting rod (422), one end of the first connecting rod (421) is rotatably connected with the fan frame (2), the other end of the first connecting rod downwards penetrates through the smoke collecting hood (1) and is rotatably connected with the corresponding baffle (32), one end of the second connecting rod (422) can be rotatably connected with the transmission mechanism or separated from the transmission mechanism, the other end of the second connecting rod (422) downwards penetrates through the smoke collecting hood (1) and is rotatably connected with the corresponding baffle (32), and the second connecting rod (422) is also rotatably, the cigarette guide plate (31) is provided with a first sliding rod (311) extending upwards, and the top end of the first sliding rod (311) can be in contact with or separated from the transmission mechanism.
4. The range hood of claim 3, wherein: the driving mechanism comprises a motor (411) and a screw rod (412) connected with an output shaft of the motor (411), and the screw rod (412) penetrates through the transmission mechanism and is in threaded connection, so that the transmission mechanism can be driven to ascend and descend.
5. The range hood of claim 4, wherein: the transmission mechanism is a sliding part (43), the movement mechanism further comprises a solenoid valve assembly, the solenoid valve assembly comprises a first solenoid valve (441), a second solenoid valve (442) and a third solenoid valve (443), the first solenoid valve (441) can be connected with or disconnected from the sliding part (43), the first solenoid valve (441) is arranged at the top end of the first sliding rod (311), and the second solenoid valve (442) and the third solenoid valve (443) are respectively and rotatably connected with the end part of the second connecting rod (422) of one of the first connecting rod assemblies.
6. The range hood of claim 5, wherein: each electromagnetic valve is provided with an extensible electromagnetic rod (444), and a sliding rail into which the electromagnetic rod (444) can be inserted is formed at the position of the sliding component (43) corresponding to each electromagnetic rod (444) in a sunken mode.
7. The range hood of claim 5, wherein: the front side of fan frame (2) is provided with installing support (413), set chamber (414) in installing support (413), be formed with outside sunken first spout (415) on the relative both sides wall in set chamber (414) respectively, sliding part (43) are including ability and first spout (415) sliding fit's slider (433).
8. The range hood of claim 3, wherein: the motion mechanism still includes the second link assembly that corresponds with every baffle (32), one of them of first link assembly and second link assembly is located fan frame (2) front side, and another is located fan frame (2) rear side, and every second link assembly includes third connecting rod (423) and fourth connecting rod (424), the one end and the fan frame (2) of third connecting rod (423) rotate to be connected, the other end passes collection petticoat pipe (1) downwards and is connected with corresponding baffle (32) rotation, the one end and the fan frame (2) of fourth connecting rod (424) rotate to be connected, the other end passes collection petticoat pipe (1) downwards and rotates with corresponding baffle (32) to be connected.
9. The range hood of claim 8, wherein: the middle of the rear side of the smoke guide plate (31) is provided with a second sliding rod (312) extending upwards, the rear side of the fan frame (2) is provided with a second sliding groove (21) extending longitudinally, and the second sliding rod (312) is used for being in sliding fit with the second sliding groove (21).
10. A control method of a range hood as claimed in any one of claims 3 to 9, wherein: the method comprises the following steps:
1) the range hood is started, the smoke guide plate (31) is at the first position at the moment, and the baffle plate (32) is at the third position;
2) the cooking appliance judges or the user selects whether to cook on two sides, if so, the step 3) is carried out; if not, when the single-side left side cooking is needed, the step 6) is carried out, and when the single-side right side cooking is needed, the step 7) is carried out;
3) connecting each second connecting rod with the transmission mechanism, and connecting each first sliding rod (311) with the transmission mechanism;
4) the driving mechanism drives the transmission mechanism to move downwards to drive the second connecting rod (422) of the first connecting rod assembly to rotate around the position connected with the fan frame (2), the first connecting rod (421) is driven to rotate around the position connected with the fan frame (2), so that one ends, close to each other, of the baffles (32) are turned upwards to incline, and the baffles (32) integrally move towards the outer side far away from the smoke guide plate (31) to reach a fourth position; meanwhile, as the transmission mechanism moves downwards, the transmission mechanism pushes the smoke guide plate (31) to move downwards to a second position through the first sliding rod (311), so that the smoke collection cavity (11) is opened, and the fan of the range hood is opened;
5) if left-side single-side cooking is needed, the first sliding rod (311) and the second connecting rod (422) of the first connecting rod assembly on the left side are respectively separated from the transmission mechanism, the position of the baffle (32) on the left side and the position of the smoke guide plate (31) on the left side are locked, and the transmission mechanism moves upwards to drive the baffle (32) on the right side to return to the third position; if the cooking on the right side is needed, the first sliding rod (311) and the second connecting rod (422) of the first connecting rod assembly on the right side are respectively separated from the transmission mechanism, the position of the baffle (32) on the right side and the position of the smoke guide plate (31) on the right side are locked, and the transmission mechanism moves upwards to drive the baffle (32) on the left side to return to the third position; until the work of the range hood is finished or the user selects the cooking mode again;
6) if left-side single-side cooking is needed, the first sliding rod (311) and the second connecting rod (422) of the first connecting rod assembly on the left side are respectively connected with the transmission mechanism, the driving mechanism drives the transmission mechanism to move downwards to drive the second connecting rod (422) of the first connecting rod assembly on the left side to rotate around the position connected with the fan frame (2), the first connecting rod (421) on the left side is driven to rotate around the position connected with the fan frame (2), so that one end, close to the other baffle (32), of the baffle (32) on the left side is turned upwards to incline, and the baffle (32) moves towards the outer side away from the smoke guide plate (31) integrally to reach a fourth position; meanwhile, as the transmission mechanism moves downwards, the transmission mechanism pushes the smoke guide plate (31) to move downwards to a second position through the first sliding rod (311), so that the middle part and the left part of the smoke collection cavity (11) are opened, the fan of the range hood is started, and the step 8 is carried out;
7) if the cooking on the right side is needed, the first sliding rod (311) and the second connecting rod (422) of the first connecting rod assembly on the right side are respectively connected with the transmission mechanism, the driving mechanism drives the transmission mechanism to move downwards to drive the second connecting rod (422) of the first connecting rod assembly on the right side to rotate around the position connected with the fan frame (2), the first connecting rod (421) on the right side is driven to rotate around the position connected with the fan frame (2), so that one end, close to the other baffle (32), of the baffle (32) on the right side is turned upwards to incline, and the baffle (32) moves towards the outer side away from the smoke guide plate (31) integrally to reach a fourth position; meanwhile, as the transmission mechanism moves downwards, the transmission mechanism pushes the smoke guide plate (31) to move downwards to a second position through the first sliding rod (311), so that the middle part and the right part of the smoke collection cavity (11) are opened, the fan of the range hood is started, and the step 8 is carried out;
8) if double-side single-side cooking is needed, the second connecting rod (422) corresponding to the opened baffle (32) is separated from the transmission mechanism, the transmission mechanism ascends to the closing position, the second connecting rod (422) corresponding to the unopened baffle (32) is connected with the transmission mechanism, then the transmission mechanism moves downwards to drive the unopened baffle (32) to turn over and open, double-side oil smoke absorption is achieved, and the range hood is operated to finish or the user selects the cooking mode again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922991.4A CN112228929B (en) | 2020-09-04 | 2020-09-04 | Range hood and control method thereof |
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| CN202010922991.4A CN112228929B (en) | 2020-09-04 | 2020-09-04 | Range hood and control method thereof |
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| CN112228929B CN112228929B (en) | 2022-03-18 |
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| CN113669768A (en) * | 2021-06-21 | 2021-11-19 | 华帝股份有限公司 | Smoke guide plate structure of range hood and control method thereof |
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| CN114688595A (en) * | 2022-06-01 | 2022-07-01 | 杭州老板电器股份有限公司 | Range hood and control method |
| CN114777181A (en) * | 2022-06-21 | 2022-07-22 | 杭州老板电器股份有限公司 | Variable double-cavity range hood |
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| CN112228929B (en) | 2022-03-18 |
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