CN113958981A - Integrated cooking appliance and control method thereof - Google Patents

Abstract

The invention discloses an integrated cooking appliance and a control method thereof, wherein the integrated cooking appliance comprises a range hood, a stove body and a cleaning device, the stove body comprises a cabinet body, a stove arranged at the top of the cabinet body and a steam box arranged in the cabinet body, the steam box comprises a box body and a steam generator arranged outside the box body, and the integrated cooking appliance is characterized in that: the cleaning device comprises a water inlet pipeline connected to an external tap water pipe, the water inlet pipeline passes through the lower part of the kitchen range to realize heat exchange and is connected to a steam generator, and the steam generator is respectively communicated with the inside of the box body and the inside of the range hood through fluid. Compared with the prior art, the invention has the advantages that: through arranging the water inlet and outlet pipeline, water can be supplied to the steam box, the water tank of the steam box is omitted, manual water adding is not needed, the labor amount of a user is reduced, meanwhile, water is heated by using the waste heat of the cooker, the power consumption of the steam generator can be reduced, and the service life of the steam generator is prolonged.

Description

Integrated cooking appliance and control method thereof

Technical Field

The invention relates to kitchen equipment, in particular to an integrated cooking appliance and a control method of the integrated cooking appliance.

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.

In the use process of the range hood, a large amount of oil stains are accumulated on the fan, and the oil stains easily cause blockage, increase of load and the like, so that the use effect of the range hood is influenced. For this reason, some range hoods with a self-cleaning function are known. With the continuous progress of the self-cleaning technology of the range hood, steam cleaning or water cleaning is widely applied to the field of self-cleaning of the range hood, and the basic principle is that a steam generator generates steam or water is pumped by a water pump to convey the steam or water to a nozzle at the tail end of a spray pipe, and the steam or water is quickly sprayed out from the nozzle to flush an impeller and a volute for cleaning.

The existing steam cleaning or water cleaning mode usually adopts the form of an external water box or a water cup. The range hood disclosed by the Chinese patent with the application number of 201620368078.3 comprises an oil fume filtering box body and an air suction box body, wherein a fan system is installed in the oil fume filtering box body, the fan system comprises an air duct shell, a fan and an impeller which are installed in the air duct shell, an injection device facing the impeller is installed on the air duct shell, the range hood comprises a shower nozzle, a water inlet interface of the shower nozzle is externally connected with a water tank and a water pump, and the water pump is connected with the water inlet interface through a pipeline and provides cleaning liquid or water for the shower nozzle.

The self-cleaning range hood adopts the water tank to store cleaning water, so that the self-cleaning time, range and cleaning cleanliness of the range hood are greatly limited, the problem cannot be effectively solved, and once a user loses a water box or a water cup, the self-cleaning function cannot be applied.

In addition, there is also a mode of external connection of water pipes, such as the range hood disclosed in chinese patent application No. 202022554882.X, which includes a housing, a water inlet on-off valve, a water outlet on-off valve and a power transmission member, the housing encloses into a smoke collection chamber, the smoke collection chamber has a water storage area for storing liquid required for washing, the housing is provided with a water inlet port and a water outlet port respectively communicated with the water storage area, the water inlet on-off valve is used for controlling the opening and closing of the water inlet port, the water outlet on-off valve is used for controlling the opening and closing of the water outlet port, and the smoke collection chamber is provided with a spray arm; when oil stains need to be discharged, the water outlet switch valve is opened, the water outlet interface is conducted, and the oil stains in the water storage area are discharged from the water outlet interface.

This kind of scheme of external water pipe, when the oil extraction is dirty, can be because the greasy dirt that produces is too sticky, the simple gravity blowdown that utilizes, and the time is of a specified duration, and the oil extraction is dirty the pipe and will be stopped up, causes the blowdown inefficacy problem.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide an integrated cooking appliance, which can save the whole water tank, simplify the structure, and reduce the labor amount without adding water manually.

The second technical problem to be solved by the present invention is to provide a control method using the integrated cooking appliance.

The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides an integrated cooking utensil, includes range hood, the kitchen body and belt cleaning device, the kitchen body is including the cabinet body, set up the cooking utensils at cabinet body top and set up the steam ager in the cabinet body, the steam ager includes the box and sets up the steam generator outside the box, its characterized in that: the cleaning device comprises a water inlet pipeline connected to an external tap water pipe, the water inlet pipeline passes through the kitchen range to realize heat exchange and is connected to a steam generator, and the steam generator is respectively communicated with the inside of the box body and the inside of the range hood.

In order to facilitate the cooling of the electric box of the steam box and simplify a heat dissipation system, the steam box further comprises an electric box arranged outside the box body, the water inlet pipeline comprises a water inlet pipe, one end of the water inlet pipe extends out of the cabinet body and is used for being connected with a tap water pipe, and the water inlet pipe further realizes heat exchange through the lower part of the electric box.

Preferably, in order to fully dissipate heat of the electrical box, the position of the water inlet pipe corresponding to the electrical box is in a shape of parallel backflow.

In order to absorb the waste heat of the cooker as much as possible, the water inlet pipeline further comprises a first conduit and a second conduit, the first conduit is used for being communicated with the water inlet pipe, the second conduit is used for being communicated with the steam generator, the cooker comprises a cooking bench panel, a cooking range and a switch, the cooking range is arranged on the cooking bench panel, an energy collecting ring is arranged on the periphery of the cooking range, and the first conduit and the second conduit are integrally communicated with the cooking range, the switch and the energy collecting ring.

Preferably, the cleaning device further comprises a first valve and a second valve, the water inlet pipe is connected to an input end of the first valve, one end of the first conduit is connected with an output end of the first valve, the first conduit sequentially passes through the cooking range and the switch and extends to the energy collecting ring, one end of the second conduit is connected with the energy collecting ring, the other end of the second conduit is connected with an input end of the second valve, the energy collecting ring is hollow, and the first conduit and the second conduit are respectively communicated with the inner fluid of the energy collecting ring; the output end of the second valve is connected to a steam generator of the steam box through a third conduit.

In order to supply the cleaning water of the range hood and the steam for the steam box respectively, the cleaning device further comprises a third valve and a water outlet pipe, the outlet of the steam generator is connected to the third valve, one path of the output of the third valve is communicated to the interior of the range hood through the water outlet pipe, and the other path of the output of the third valve is directly communicated with the interior of the box body of the steam box.

In order to facilitate the discharge of oil stains in the fan system and sewage mixed with oil and water after cleaning, the range hood comprises an air inlet assembly arranged above the cabinet body and a fan system arranged in the cabinet body, an air inlet is formed in the air inlet assembly, the cleaning device further comprises a sewage discharge assembly, the sewage discharge assembly comprises an oil collecting tank and a sewage discharge pipe, the oil collecting tank is arranged below the fan system and used for collecting sewage flowing down by the fan system, and the sewage discharge pipe is used for discharging the sewage in the oil collecting tank to a sewer.

In order to collect sewage, the sewage draining assembly further comprises an oil collecting disc which is arranged on the top surface of the oil collecting tank, is in a truncated cone shape gradually sunken from the periphery to the middle, and is provided with an oil leaking hole at the lower end part of the oil collecting disc, so that the outer part of the oil collecting disc is communicated with the inner part of the oil collecting tank through the oil leaking hole in a fluid mode.

Make the sewage discharge pipe of discharge sump in the oil trap for being convenient for through fluid pressure, range hood is still including setting up the air outlet cover in the air outlet department of fan system, the blowdown subassembly still includes the ventilation pipe, the ventilation pipe is connected between the oil trap of air outlet cover and blowdown subassembly for the inside fluid intercommunication in air outlet cover and the oil trap, the blowdown subassembly still includes the shutoff piece, the shutoff piece sets up in the oil trap through the pivot rotation ground of horizontal extension, the shutoff piece can overturn and shutoff oil leak hole when receiving the pressure that air outlet cover came, the shutoff piece keeps opening the trend of oil leak hole.

Preferably, the blocking piece comprises a first turning plate and a second turning plate which are integrally formed, the top of the first turning plate is in an open shape, and the end of the ventilation pipe extends into the oil collecting tank and is located above the first turning plate.

To facilitate heating of the contaminated water in the sump tank and to reduce the viscosity, the cleaning apparatus further comprises a fourth conduit connected at one end to the outlet of the steam generator and at the other end to the housing and in fluid communication with the gap between the housing and the sump tank, and a housing.

In order to control the operation of the pollution discharge assembly conveniently, a fourth valve used for controlling the on-off of a fluid passage between the air outlet cover and the oil collecting tank is arranged on the ventilating pipe, and the pollution discharge assembly further comprises a liquid level sensor and a viscosity sensor which are arranged in the oil collecting tank.

The technical scheme adopted by the invention for solving the second technical problem is as follows: the control method of the integrated cooking utensil comprises the following steps that: the control method comprises the following steps:

1) after starting, detecting the height H of the liquid level in the oil collecting tank through a liquid level sensor, and recording; the integrated cooking appliance is preset with a first height threshold h1, a second height threshold h2 and a third height threshold h3, and meets the conditions that h3 is more than h2 and more than h1, h1 is the low-position oil discharge height of the oil collecting tank, h3 is the high-position oil discharge height of the oil collecting tank, and h2 is positioned between h1 and h 3; setting the number of times of oil drainage from a high position to a low position as i, wherein i is 0 initially, and accumulating once every time oil drainage from the high position to the low position is carried out, and i is i + 1;

2) comparing the detected current liquid level H with H1, if H > H1, starting a viscosity sensor, detecting the viscosity of the sewage in the oil collecting tank (371), and entering step 3); if H is less than or equal to H1, not starting viscosity detection;

3) judging whether H2 is more than H is more than H1, if so, indicating that the current liquid level height is at a low level between H1 and H2, entering the step 4), and if not, entering the step 10);

4) judging whether the range hood needs to be cleaned at the moment, and if so, entering the step 5); if the cleaning is not needed, the drainage component does not need to be started;

5) judging a cleaning mode required by the range hood, and if the cleaning mode is judged to be the first cleaning mode, not starting the pollution discharge assembly after cleaning is finished; if the second cleaning mode is judged, entering the step 6); the intensity of the first cleaning mode is less than that of the second cleaning mode;

6) judging whether the viscosity of the sewage in the oil collecting tank exceeds a preset threshold value or not, and if not, controlling the opening angle of a check valve plate of an air outlet cover of the range hood to be theta 1; if the viscosity of the sewage exceeds a preset threshold value, entering a step 7);

7) the steam generator is started, hot water after heat exchange of the stove can be heated to a preset temperature again through the steam generator, and is conveyed to a gap between the oil collecting tank and the shell through the fourth guide pipe to heat sewage in the oil collecting tank, so that the viscosity of the sewage is reduced; then closing the check valve plate, and discharging the sewage by using the static pressure of the pressure;

8) when sewage is discharged, judging whether the difference between the pressure of the fourth valve and the pressure in the oil collecting tank exceeds a preset pressure difference threshold value or not, if so, starting a steam generator, spraying high-temperature steam, conveying the high-temperature steam into the oil collecting tank through an air outlet cover, and then entering step 9); if not, directly entering step 9);

9) when the liquid level sensor detects that the current liquid level height H is less than H1, ending the pollution discharge program;

10) judging whether H3 is more than H is more than H2, if so, indicating that the current liquid level is at a high level, and entering the step 11);

11) judging whether the range hood needs to be cleaned at the moment, and if so, entering the step 12); if not, go to step 13);

12) judging a cleaning mode required by the range hood, and if the range hood is judged to be the first cleaning mode, after the cleaning is finished, entering the step 13) after the cleaning is finished; if the second cleaning mode is judged, entering the step 16); the intensity of the first cleaning mode is less than that of the second cleaning mode;

13) the sewage discharge assembly is started to discharge sewage to a low level, so that H is positioned between H1 and H2; then making i ═ i + 1;

14) judging whether i is less than or equal to n, if so, entering the step 15); if not, go to step 17); n is a preset threshold value from high rank to low rank;

15) controlling the opening angle of the check valve plate to be theta 2 and meet the condition that theta 2 is larger than theta 1, opening the fourth valve, operating the fan system, starting to discharge sewage, and ending the sewage discharge program when the liquid level height H is detected to meet the condition that H2 is larger than H1;

16) starting a sewage discharge assembly, emptying sewage in an oil collection tank, starting a check valve plate at an angle theta 2, starting a fourth valve, operating a fan system, discharging the sewage to a low level to meet the conditions that H2 is more than H is more than H1, and entering the step 17);

17) detecting the viscosity of the current sewage in the oil collecting tank, if the detected viscosity of the sewage does not exceed a preset threshold value, opening a check valve plate of an air outlet cover of the range hood by an angle theta 1, simultaneously opening a fourth valve, opening a fan system, continuously discharging sewage, and entering step 19); if the detected liquid viscosity exceeds a preset threshold value, entering step 18);

18) starting the steam generator, heating the hot water after heat exchange of the stove to a preset temperature again through the steam generator, introducing the hot water into a gap between the shell and the oil collecting tank through a fourth conduit, and heating the sewage in the oil collecting tank to reduce the viscosity of the sewage; then closing the check valve plate, still opening the fourth valve, and discharging the sewage by using the static pressure of the pressure;

19) when sewage is discharged, judging whether the difference between the pressure of the fourth valve and the pressure in the oil collecting tank exceeds a preset pressure difference threshold value, if so, starting a steam generator, heating water to a preset temperature, spraying high-temperature steam to quickly dredge a pipeline, and then entering step 20); if not, directly entering step 20);

20) the liquid level sensor detects the current liquid level height H, whether H is more than or equal to 0 and less than H1 is judged, and if so, the pollution discharge procedure is ended; if not, go back to step 17).

Compared with the prior art, the invention has the advantages that: the water inlet and outlet pipelines are arranged, so that water can be supplied to the steam box, a water tank of the steam box is omitted, manual water adding is not needed, the labor amount of a user is reduced, meanwhile, waste heat of a cooker is used for heating water, the power consumption of a steam generator can be reduced, the service life of the steam generator is prolonged, the cleaning of the range hood and the steam box share one steam generator, and the structure is simple; the range hood can select two modes of steam washing and hot water washing, and has compact integral layout structure and reduced production cost; the low-level oil discharge can be realized by utilizing the fan system of the range hood, and the problem that the oil collection tank is low and cannot independently depend on gravity to discharge oil in the integrated stove is solved.

Drawings

Fig. 1 is a schematic view of an integrated cooking appliance according to an embodiment of the present invention;

fig. 2 is a schematic view of a cabinet of a concealed cooking range of an integrated cooking appliance according to an embodiment of the present invention;

FIG. 3 is a schematic view of a hidden air intake assembly, a cabinet and a steam box of the integrated cooking appliance of an embodiment of the present invention;

FIG. 4 is a schematic view of a cooktop and plumbing of an integrated cooking appliance of an embodiment of the present invention;

FIG. 5 is a partial schematic view of an integrated cooking appliance according to an embodiment of the present invention;

FIG. 6 is a schematic view of a fan system and waste assembly of the integrated cooking appliance of an embodiment of the present invention;

fig. 7 is a sectional view (open state) of a soil exhaust assembly of the integrated cooking appliance according to the embodiment of the present invention;

fig. 8 is a sectional view (closed state) of a soil exhaust assembly of the integrated cooking appliance according to the embodiment of the present invention;

fig. 9 is a schematic view of a closure of a soil exhaust assembly of the integrated cooking appliance according to an embodiment of the present invention;

fig. 10 is a schematic view illustrating an oil discharging principle of the integrated cooking appliance according to the embodiment of the present invention;

FIG. 11 is a schematic view of the integrated cooking appliance hiding the intake assembly, cabinet and steam box (the angle of the check valve of the fan system is different from that of FIG. 3) according to the embodiment of the invention;

fig. 12 is a flowchart of a control method of an integrated cooking appliance according to an 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 5, an integrated cooking appliance includes a range hood 1 and a stove body 2, wherein the range hood 1 includes an air intake assembly 11 and a fan frame 12 disposed below the air intake assembly 11, a fan system 13 is disposed in the fan frame 12, and an air inlet 111 is disposed on the air intake assembly 11. The air intake assembly 11 and the fan frame 12 form an inner cavity communicated with each other by fluid.

The range body 2 is arranged below the range hood 1, and comprises a cabinet body 21, a range 22 arranged on the top of the cabinet body 21, and a steam box 23 arranged inside the cabinet body 21. The cooktop 22 includes a cooktop panel 221, two cooktops 222 provided on the cooktop panel 221, the cooktops 222 having two spaced-apart left and right, and a knob-type switch 223 for controlling the operation of the cooktops 222. The energy gathering ring 224 is arranged on the periphery of each cooking range 222, so that heat generated by the cooking ranges 222 is reflected, and the heating efficiency is improved. The steam box 23 includes a box 231, a steam generator 232, and an appliance box 233, wherein the steam generator 232 and the appliance box 233 are both disposed outside the box 231.

The air intake assembly 11 is disposed above the rear side of the cabinet 21, and the fan frame 12 and the fan system 13 are disposed within the cabinet 21. Since the fan frame 12 and the fan system 13 are disposed in the cabinet 21, cleaning the inner cavity of the range hood 1 portion of the integrated cooking appliance has been a relatively troublesome problem for users. To this end, the integrated cooking appliance of the present invention further comprises a washing means, comprising a water inlet pipe 31, a water outlet pipe 32 and a sewage drain pipe 33, wherein, one end of the water inlet pipe 31 extends out of the cabinet body 21 so as to be convenient for the connection of an external tap water pipe and can also be connected with other cleaning medium sources, such as cleaning agent, the water inlet pipe 31 extends from the end part to the lower part of the electrical box 233 of the steam box 23, and the position corresponding to the electrical box 233 is in a shape of parallel backflow, since the electric appliance box 233 of the steam box 23 has an excessively high temperature due to heat radiation and self-heating when the steam box 23 is operated, a heat dissipation system needs to be provided, however, the extra heat dissipation system not only increases the cost, but also wastes the energy, so in the present invention, the cold water from the tap water pipe passes through the electric appliance box 233 to perform heat exchange once, so that the electric appliance box 233 is cooled, and the cold water in the water inlet pipe 31 is heated.

The cleaning device further comprises a first valve 341, a second valve 342, a third valve 343, a first conduit 351 and a second conduit 352, which are all preferably solenoid valves in this embodiment. The other end of the inlet pipe 31 is connected to the input end of the first valve 341. The first and second guide ducts 351 and 352 have two, respectively, and each set of the first and second guide ducts 351 and 352 is adapted to correspond to the cooking range 222 and the switch 223 on one side. One end of each first conduit 351 is connected to the output end of the first valve 341, and after extending from the first valve 341, first spirals through the bottom of the burner 222, then extends below the switch 223 and is also in a spiral shape below the switch 223, and then extends to the energy concentrating ring 224. The energy concentrating ring 224 has a hollow shape, and the first conduit 351 is in fluid communication with the interior of the energy concentrating ring 224. A second conduit 352 has one end connected to the power ring 224 and is in fluid communication with the interior of the power ring 224, and the other end of the second conduit 352 is connected to the input of the second valve 342. The junction of each of the first conduit 351 and the second conduit 352 with the energy concentrating ring 224 may be arranged centrally symmetrically with respect to the bottom of the energy concentrating ring 224. Since the temperature of the burner 222 and the switch 223 is low and the temperature in the energy concentrating ring 224 is high, the water from the water inlet pipe 31 finally passes through the energy concentrating ring 224 and then to the input end of the second valve 342.

When the water is introduced into the water inlet pipe 31 to the first valve 341, the temperature sensor may first detect whether the left cooking stove 222 or the right cooking stove 222 is in operation, and then the first conduit 351 of the corresponding side is connected through the first valve 341.

The cleaning device further comprises a third conduit 353, both ends of the third conduit 353 are respectively connected between the output end of the second valve 342 and the steam generator 232 of the steam box 23, so that the water after heat exchange between the electrical box 233 and the cooking utensil 22 is directly connected to the steam generator 232, and the outlet of the steam generator 232 is provided with the third valve 343, which can control three water outlets: 1) one path of water can be used for realizing steam cleaning or hot water cleaning of the range hood, and the outlet of steam and hot water can be realized through the flow of water, specifically, one end of the water outlet pipe 32 is connected with one output end of the third valve 343, and the other end extends into the inner cavity of the range hood 1, and the water outlet pipe is used as a supply pipe of cleaning media (including water, cleaning agents and the like) and can be combined with common cleaning mechanisms such as a nozzle and the like to clean the inner cavity of the range hood 1, including a cleaning fan system 13, a filter screen and the like; 2) the other path of steam can be directly supplied into the box 231 of the steam box 23; 3) in the other way, when the sewage draining assembly detects that the sewage is viscous or the sewage pipe 33 is blocked, the steam generator 232 can generate steam or hot water to heat the sewage (oil-water mixture) in the sewage draining assembly according to the actual working condition, which will be described in detail below. Therefore, the power of the steam generator 233 is reduced through the heat exchange of tap water and the electric appliance box 233 stove 22, the energy consumption is reduced, and one heating device can achieve the switching of three functions.

The above-mentioned water inlet pipe 31, the first conduit 351, the second conduit 352 and the third conduit 353 constitute a water inlet pipe of the steam generator 232 of the steam box 23.

Referring to fig. 2, 5 and 6, the cleaning apparatus further includes a fourth conduit 354, the housing 36 and a dirt discharge assembly including an oil collection tank 371, the housing 36 being disposed around the oil collection tank 371 with a gap therebetween, the fourth conduit 354 having one end connected to one of the output ends of the third valve 343 and the other end connected to the housing 36 and in fluid communication with the gap between the housing 36 and the oil collection tank 371. Because the effluent of external tap water is a technical problem to be solved, and because the integrated cooking utensil is lower, the fan system 13 is placed at the lower end, so that sewage or waste water for cleaning the range hood cannot be discharged to a sewer by depending on gravity alone, if the low-level pollution discharge is to be realized, the invention is provided with a pollution discharge assembly, and the specific structure of the pollution discharge assembly is described in detail below.

The range hood 1 further includes an air outlet cover 14 disposed at the air outlet of the fan system 13, the air outlet cover 14 includes a cover 141, a check valve plate 142, and a driving mechanism 143 configured to drive the check valve plate 142 to rotate, in this embodiment, the driving mechanism 143 is preferably a motor. The structure of the outlet cover 14 is the same as that of the prior art. In addition, in the present embodiment, the fan system 13 is arranged in such a manner that the air outlet direction is horizontal, such as the left air outlet shown in fig. 6, the air outlet cover 14 is disposed at the left side of the fan system 13, and the rotation shaft of the check valve plate 142 also extends in the horizontal direction (such as the front-back direction).

Referring to fig. 6 to 9, the dirt discharging assembly further includes a ventilation pipe 377, and the ventilation pipe 377 is connected between the air outlet cover 14 and the oil collecting tank 371 of the dirt discharging assembly, so that the inside of the air outlet cover 14 is communicated with the fluid in the oil collecting tank 371. The vent pipe 377 is provided with a fourth valve 372 for controlling the on-off of a fluid passage between the air outlet cover 14 and the oil collecting tank 371, and the vent pipe 377 forms a pressurization pipeline. The sewage draining assembly further comprises a blocking piece 373, an oil collecting disc 374, a liquid level sensor 375 and a viscosity sensor 376, wherein the oil collecting disc 374 is arranged on the top surface of the oil collecting tank 371 and is in a truncated cone shape gradually sunken from the periphery to the middle, and an oil leakage hole 3741 is formed in the lower end part of the oil collecting disc 374, so that the outside of the oil collecting disc 374 is in fluid communication with the inside of the oil collecting tank 371 through the oil leakage hole 3741. The level sensor 375 and the viscosity sensor 376 described above are disposed within the oil collection tank 371. The blocking member 373 includes a first turning plate 3731 and a second turning plate 3732 which are integrally formed, the top of the first turning plate 3731 is open to contain a certain amount of air, and the end of the ventilation tube 377 extends into the oil collecting tank 371 and is located above the first turning plate 3731, so that the air introduced from the air outlet cover 14 can be pressurized and then enter the first turning plate 3731. The blocking member 373 is rotatably connected to the oil collecting tank 371 by a rotating shaft 3711, the rotating shaft 3711 extends in the lateral direction, i.e., the front-rear direction as shown in fig. 7, and a first turning plate 3731 and a second turning plate 3732 are respectively located on both sides of the rotating shaft 3711. Thus, the blocking member 373 is rotatable with respect to the oil collecting tank 371. The second flap 3732 is positioned corresponding to the oil leakage hole 3741 of the oil collection pan 374, the second flap 3732 can be positioned at the bottom of the oil leakage hole 3741 to block the oil leakage hole 3741 of the oil collection pan 374, see fig. 8, and the second flap 3732 can be rotated away from the oil collection pan 374 after being stressed to open the oil leakage hole 3741, see fig. 7. In the absence of external force, the first and second flaps 3711 and 3732 on opposite sides of the rotating shaft 3711 are balanced in weight, which is intermediate between the two states shown in fig. 7 and 8.

One end of the drain pipe 33 is connected to the oil collecting tank 371 and communicates with the fluid in the oil collecting tank 371, and the other end extends out of the cabinet 21 and is connected to a sewer.

The blower system 13 comprises a volute 131 and an impeller 132 arranged at the volute 131, the oil collecting tank 371 is arranged below the blower system 13, an oil discharge hole can be formed at a position, opposite to the position, above the oil collecting tray 374, of the volute 131, so that sewage in the volute 131 can directly drip onto the oil collecting tray 374, and if the sewage does not drip vertically, the sewage can contact other positions on the top surface of the oil collecting tank 371, and the sewage can be collected into the oil collecting tray 374 due to the shape of the oil collecting tray 374. When the sewage in the oil collecting tray 374 increases and the balance of the plugging member 373 is broken, the second turning plate 3732 descends, and the sewage smoothly enters the oil collecting tank 371 through the oil leakage hole 3741.

When oil needs to be discharged, the range hood 1 is started, the fourth valve 372 is opened, high-pressure gas enters the oil collecting tank 371 through the fifth conduit 377, air with speed firstly impacts the first turning plate 3731 of the blocking piece 373, balance is broken, the second turning plate 37 rotates upwards, and sealing is formed between the second turning plate 37 and the oil leakage hole 3741 of the oil collecting disc 374. Because high-pressure gas continuously enters the oil collecting tank 371, the pressure in the oil collecting tank 371 is continuously increased, and when the pressure in the oil collecting tank 371 overcomes the gravity of the sewage discharged from the oil collecting tank 371, the sewage in the oil collecting tank 371 can be discharged.

The fourth conduit 354 may introduce steam or hot water into the gap between the housing 36 and the oil collecting tank 371 to heat the sewage in the oil collecting tank 371, so as to increase the mobility of the sewage in the oil collecting tank 371 and facilitate the drainage of the sewage in the oil collecting tank 371.

Referring to fig. 12, a flowchart of a control method of the integrated cooking appliance of the present invention specifically includes the following steps:

1) after the start, the liquid level H in the oil collecting tank 371 is detected by the liquid level sensor 375 and recorded into the system of the integrated cooking appliance; a first height threshold h1, a second height threshold h2 and a third height threshold h3 are preset in a system of the integrated cooking appliance, h3 is more than h2 and more than h1, h1 is the low-position oil discharge height of the oil collecting tank 371, h3 is the high-position oil discharge height of the oil collecting tank 371, and h2 is positioned between h1 and h 3; the number of times of oil drainage from a high position to a low position is set as i, initially, i is 0, the oil drainage is accumulated once from the high position to the low position, i is i +1, because of the height difference, the oil drainage from the high position to the low position is easier than the drainage from the low position, but if the low position is drained each time, the oil is not easy to drain after a long time because the oil has viscosity, a threshold value of the number of times is set, and when the threshold value n of the number of times is reached, for example, 5 times, the sewage is drained, so that the bottom of the oil collecting tank 371 is prevented from gathering too much viscous oil;

2) comparing the detected current liquid level H with H1, if H > H1, starting the viscosity sensor 376 to detect the viscosity of the sewage in the oil collecting tank 371, and entering step 3); if H is less than or equal to H1, not starting viscosity detection;

3) judging whether H2 is more than H is more than H1, if so, indicating that the current liquid level height is at a low level between H1 and H2, entering the step 4), and if not, entering the step 10);

4) whether the range hood needs to be cleaned or not can be judged by arranging an oil smoke sensor and detecting the accumulated oil smoke amount, and certainly, the judgment can be carried out by other existing modes, such as detecting the weight of a filter screen, the accumulated working time and the like; when the accumulated oil smoke amount reaches a threshold value needing to be cleaned, the range hood needs to be cleaned at the moment, and the step 5) is carried out; if the cleaning is not needed, the drainage component does not need to be started;

5) because the grease is easy to clean and different under the condition of the same amount of oil smoke, the grease is mainly different in time, and the longer the interval time is, the more difficult the grease is to clean, the first cleaning mode (common cleaning) or the second cleaning mode (powerful cleaning) can be judged by the last cleaning time of the range hood under the same amount of oil smoke, the less water is needed for the common cleaning, the less water flows into the oil collecting tank, the more water is needed for the powerful cleaning, and the more water flows into the oil collecting tank 371; if the first cleaning mode is judged, the pollution discharge assembly is not started after cleaning is finished; if the second cleaning mode is judged, entering the step 6);

6) after the cleaning is finished, because the sewage generated by the second cleaning mode is more, and the oil collecting tank 371 has a risk of overflowing, the sewage discharging component needs to be started, at this time, the viscosity of the current sewage in the oil collecting tank 371 is detected first, because the higher the viscosity is, the larger the resistance of liquid flowing in the pipeline is, if the detected viscosity of the sewage does not exceed a preset threshold value, the check valve plate 142 of the air outlet cover 14 of the range hood 1 needs to be opened by an angle theta 1, see fig. 3, and then the process goes to step 8); where θ 1 can be calculated from H, see fig. 10, P ═ ρ gH_pHp is the height of the sewage discharge pipe 33 from the bottom surface of the oil collecting tank 371, the performance of the fan system 13 can be measured by a laboratory to obtain a PQ curve mode of the range hood, the curve is that the pressure P is reduced along with the increase of flow Q, when the flow is 0, the pressure is the maximum, but the noise is increased, the flow is related to the wind speed V of an outlet and the section S of the outlet, Q is SV, and the angle theta 1 of the check valve plate 142 can be calculated according to S; if the detected liquid viscosity exceeds a preset threshold, the sewage is difficult to discharge by means of the dynamic pressure of the fan system 13 alone, and thus the step 7) is carried out;

7) the steam generator 232 is started, the hot water after the heat exchange of the stove 22 is heated to the preset temperature again through the steam generator 232, the hot water is introduced into the gap between the shell 36 and the oil collecting tank 371 through the fourth conduit 354, and the sewage in the oil collecting tank 371 is heated to reduce the viscosity of the sewage; then, the check valve plate 142 is closed, and the sewage is discharged by using the static pressure of the pressure, as can be seen from the PQ curve, under the same condition, the outlet pressure of the fan is reduced along with the increase of the flow rate, and when the flow rate is 0, the pressure is the maximum, but the noise is also increased;

8) when discharging the sewage, it is determined whether the difference between the pressure of the fourth valve 372 and the pressure in the oil collecting tank 371 exceeds a preset pressure difference threshold, if so, for example

Wherein Pd is the pressure at the fourth valve 372, and Pq is the pressure in the oil collecting tank 371, which means that the drain pipe 33 is blocked, at this time, the steam generator 232 is started to heat the water to a preset temperature, and high-temperature steam is sprayed out and conveyed into the oil collecting tank 371 through the air outlet 14 to rapidly dredge the pipeline, and then the process enters step 9); if not, directly entering step 9);

9) when the liquid level sensor 375 detects that the current liquid level H < H1, the blowdown procedure is ended;

10) judging whether H3 is more than H is more than H2, if so, indicating that the current liquid level is at a high level, and entering the step 11);

11) judging whether the range hood needs to be cleaned at the moment, wherein the judgment can be realized by the accumulated oil smoke amount detected by the oil smoke sensor as in the step 4), and the judgment can also be carried out by other existing manners, such as detecting the weight of a filter screen, the accumulated working time and the like; when the accumulated oil smoke amount reaches the threshold value needing to be cleaned, the range hood needs to be cleaned at the moment, and the step 12) is carried out; if no cleaning is needed, go to step 13);

12) judging whether the range hood 1 needs normal cleaning or powerful cleaning, wherein the judging mode can be as in step 5), and if the first cleaning mode is judged, entering step 13 after the cleaning is finished); if the second cleaning mode is judged, entering the step 16);

13) the sewage discharge assembly is started to discharge sewage to a low level (H is positioned between H1 and H2); then making i ═ i + 1;

14) judging whether i is less than or equal to n (n can be equal to 5 for example) or not, and if yes, entering step 15); if not, go to step 17); n is a preset threshold value from high rank to low rank;

15) the opening angle theta 2 of the check valve plate is calculated as theta 1, theta 2 is larger than theta 1, referring to fig. 11, the fourth valve 372 is opened, the fan system 13 operates to discharge sewage, and when the liquid level height H reaches a low level (H2 is larger than H is larger than H1), the sewage discharge program is ended;

16) starting the sewage discharge assembly to discharge the sewage in the oil collection tank 371, wherein the check valve plate 142 is opened at an angle theta 2 first, as shown in fig. 11, the fourth valve 372 is opened, the fan system 13 is operated to discharge the sewage to a low position (H2 is more than H is more than H1), and the step 17 is performed;

17) detecting the viscosity of the current sewage in the oil collecting tank 371, if the detected sewage viscosity does not exceed a preset threshold value, opening the check valve plate 142 of the air outlet cover 14 of the range hood 1 by an angle theta 1, referring to fig. 3, simultaneously opening the fourth valve 372, opening the fan system 13, continuously discharging the sewage, and entering step 19); if the detected fluid viscosity exceeds a preset threshold, it is difficult to discharge the contaminated water by the dynamic pressure of the fan system 13 alone, and thus the process proceeds to step 18);

18) the steam generator 232 is started, the hot water after the heat exchange of the stove 22 is heated to the preset temperature again through the steam generator 232, the hot water is introduced into the gap between the shell 36 and the oil collecting tank 371 through the fourth conduit 354, and the sewage in the oil collecting tank 371 is heated to reduce the viscosity of the sewage; then the check valve plate 142 is closed, the fourth valve 372 is still opened, the sewage is discharged by using the static pressure of the pressure, and under the same condition, the outlet pressure of the fan is reduced along with the increase of the flow rate, and the pressure is maximum when the flow rate is 0, but the noise is increased;

19) while discharging the sewage, detect the fourth valve372 and the pressure in the sump tank 371 exceed a predetermined pressure differential threshold, if so, for example

Wherein Pd is the pressure at the fourth valve 372, and Pq is the pressure in the oil collecting tank 371, which means that the drain pipe 33 is blocked, at this time, the steam generator 232 is started to heat the water to a preset temperature, and high-temperature steam is sprayed out to rapidly dredge the pipeline, and then the process goes to step 20); if not, directly entering step 20);

20) the liquid level sensor 375 detects the current liquid level height H, judges whether H is more than or equal to 0 and less than H1, if so, the pollution discharge procedure is ended; if not, go back to step 17).

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion, respectively), i.e., a fluid (gas, liquid or a mixture of both) can flow along a flow path from the first portion and/or be transported to the second portion, and may be a direct communication between the first portion and the second portion, or an indirect communication between the first portion and the second portion via at least one third element, such as a fluid channel, e.g., a pipe, a channel, a duct, a flow guide, a hole, a groove, or a chamber that allows a fluid to flow through, or a combination thereof.

Claims (13)

1. The utility model provides an integrated cooking utensil, includes range hood (1), the kitchen body (2) and belt cleaning device, the kitchen body (2) include the cabinet body (21), set up kitchen range (22) at cabinet body (21) top and set up steam ager (23) in the cabinet body (21), steam ager (23) include box (231) and set up steam generator (232) outside box (231), its characterized in that: the cleaning device comprises a water inlet pipeline connected to an external tap water pipe, the water inlet pipeline passes through the kitchen range (22) to realize heat exchange and is connected to a steam generator (232), and the steam generator (232) is respectively communicated with the fluid inside the box body (231) and the fluid inside the range hood (1).

2. The integrated cooking appliance of claim 1, wherein: the steam box (23) further comprises an electrical box (233) arranged outside the box body (231), the water inlet pipeline comprises a water inlet pipe (31), one end of the water inlet pipe (31) extends out of the cabinet body (21) and is used for being connected with a tap water pipe, and the water inlet pipe (31) further realizes heat exchange through the lower portion of the electrical box (233).

3. The integrated cooking appliance of claim 2, wherein: the water inlet pipe (31) and the electric appliance box (233) are in parallel backflow shape.

4. The integrated cooking appliance of claim 2, wherein: the water inlet pipeline further comprises a first conduit (351) and a second conduit (352), the first conduit (351) is used for being communicated with the water inlet pipe (31), the second conduit (352) is used for being communicated with the steam generator (232), the kitchen range (22) comprises a kitchen range panel (221), a kitchen range (222) and a switch (223), the kitchen range (222) is arranged on the kitchen range panel (221), the periphery of the kitchen range (222) is provided with an energy gathering ring (224), and the first conduit (351) and the second conduit (352) are integrally in heat exchange with the kitchen range (222), the switch (223) and the energy gathering ring (224).

5. The integrated cooking appliance of claim 4, wherein: the cleaning device further comprises a first valve (341) and a second valve (342), the water inlet pipe (31) is connected to the input end of the first valve (341), one end of the first conduit (351) is connected with the output end of the first valve (341), the first conduit (351) sequentially passes through the cooking range (222) and the switch (223) and extends to the energy gathering ring (224), one end of the second conduit (352) is connected with the energy gathering ring (224), the other end of the second conduit (352) is connected with the input end of the second valve (342), the energy gathering ring (224) is in a hollow shape, and the first conduit (351) and the second conduit (352) are respectively communicated with the inside of the energy gathering ring (224); the output of the second valve (342) is connected to the steam generator (232) of the steam box (23) through a third conduit (353).

6. The integrated cooking appliance of claim 5, wherein: the cleaning device further comprises a third valve (343) and a water outlet pipe (32), an outlet of the steam generator (232) is connected to the third valve (343), one path of output of the third valve (343) is communicated with the interior of the range hood (1) through the water outlet pipe (32), and the other path of output of the third valve (343) is directly communicated with the interior of a box body (231) of the steam box (23).

7. The integrated cooking appliance of claim 1, wherein: range hood (1) is including setting up air inlet subassembly (11) and fan system (13) of setting in the cabinet body (21) top, air intake (111) have been seted up on air inlet subassembly (11), belt cleaning device still includes the blowdown subassembly, the blowdown subassembly is including setting up oil collecting tank (371) and blow off pipe (33) that are used for collecting the sewage that fan system (13) flowed down in fan system (13) below, blow off pipe (33) are used for discharging the sewer with the sewage in oil collecting tank (371).

8. The integrated cooking appliance of claim 7, wherein: the sewage draining assembly further comprises an oil collecting disc (374), the oil collecting disc (374) is arranged on the top surface of the oil collecting tank (371), the oil collecting disc (374) is in a truncated cone shape gradually sunken from the periphery to the middle, and an oil leakage hole (3741) is formed in the lower end portion of the oil collecting disc (374), so that the outer portion of the oil collecting disc (374) is in fluid communication with the inner portion of the oil collecting tank (371) through the oil leakage hole (3741).

9. The integrated cooking appliance of claim 8, wherein: range hood (1) is still including setting up air outlet cover (14) in the air outlet department of fan system (13), the blowdown subassembly still includes ventilation pipe (377), ventilation pipe (377) is connected between air outlet cover (14) and sump oil case (371) of blowdown subassembly for inside fluid intercommunication in air outlet cover (14) and sump oil case (371), the blowdown subassembly still includes shutoff piece (373), shutoff piece (373) rotationally sets up in sump oil case (371) through pivot (3711) that transversely extends, shutoff piece (373) can overturn and shutoff oil leak hole (3741) when receiving air outlet cover (14) the pressure that comes, shutoff piece (373) keep opening the trend of oil leak hole (3741).

10. The integrated cooking appliance of claim 9, wherein: the blocking piece (373) comprises a first turning plate (3731) and a second turning plate (3732) which are integrally formed, the top of the first turning plate (3731) is in an open shape, and the end of the ventilation pipe (377) extends into the oil collecting tank (371) and is positioned above the first turning plate (3731).

11. The integrated cooking appliance of claim 9, wherein: the cleaning device further comprises a fourth conduit (354) and a housing (36), the fourth conduit (354) being connected at one end to the outlet of the steam generator (232) and at the other end to the housing (36) and being in fluid communication with the gap between the housing (36) and the sump (371).

12. The integrated cooking appliance of claim 11, wherein: the ventilation pipe (377) is provided with a fourth valve (372) used for controlling the on-off of a fluid passage between the air outlet cover (14) and the oil collecting tank (371), and the sewage discharging assembly further comprises a liquid level sensor (375) and a viscosity sensor (376) which are arranged in the oil collecting tank (371).

13. A control method of an integrated cooking appliance as claimed in claim 12, the outlet cover (14) of which comprises a check valve sheet (142), characterized in that: the control method comprises the following steps:

1) after the start, the liquid level height H in the oil collecting tank (371) is detected by a liquid level sensor (375) and recorded; the integrated cooking appliance is preset with a first height threshold h1, a second height threshold h2 and a third height threshold h3, and meets the conditions that h3 is more than h2 and more than h1, h1 is the low-position oil drainage height of an oil collection tank (371), h3 is the high-position oil drainage height of the oil collection tank (371), and h2 is positioned between h1 and h 3; setting the number of times of oil drainage from a high position to a low position as i, wherein i is 0 initially, and accumulating once every time oil drainage from the high position to the low position is carried out, and i is i + 1;

2) comparing the detected current liquid level H with H1, if H > H1, starting a viscosity sensor (376), detecting the viscosity of the sewage in the oil collecting tank (371), and entering step 3); if H is less than or equal to H1, not starting viscosity detection;

3) judging whether H2 is more than H is more than H1, if so, indicating that the current liquid level height is at a low level between H1 and H2, entering the step 4), and if not, entering the step 10);

4) judging whether the range hood needs to be cleaned at the moment, and if so, entering the step 5); if the cleaning is not needed, the drainage component does not need to be started;

5) judging a cleaning mode required by the range hood (1), and if the cleaning mode is judged to be a first cleaning mode, not starting the pollution discharge assembly after cleaning is finished; if the second cleaning mode is judged, entering the step 6); the intensity of the first cleaning mode is less than that of the second cleaning mode;

6) judging whether the viscosity of the sewage in the oil collecting tank (371) exceeds a preset threshold value, if not, controlling the opening angle of a check valve plate (142) of an air outlet cover (14) of the range hood (1) to be theta 1; if the viscosity of the sewage exceeds a preset threshold value, entering a step 7);

7) the steam generator (232) is started, hot water after heat exchange of the stove (22) passes through the steam generator (232) and is heated to the preset temperature again, the hot water is conveyed to a gap between the oil collecting tank (371) and the shell (36) through the fourth conduit (354), and sewage in the oil collecting tank (371) is heated to reduce the viscosity of the sewage; then closing the check valve plate (142), and discharging the sewage by using the static pressure of the pressure;

8) when sewage is discharged, judging whether the difference between the pressure of the fourth valve (372) and the pressure in the oil collecting tank (371) exceeds a preset pressure difference threshold value or not, if so, starting a steam generator (232), spraying high-temperature steam, conveying the high-temperature steam into the oil collecting tank (371) through an air outlet cover (14), and then entering step 9); if not, directly entering step 9);

9) when the liquid level sensor (375) detects that the current liquid level H < H1, the blowdown program is ended;

10) judging whether H3 is more than H is more than H2, if so, indicating that the current liquid level is at a high level, and entering the step 11);

11) judging whether the range hood (1) needs to be cleaned at the moment, and if so, entering the step 12); if not, go to step 13);

12) judging a cleaning mode required by the range hood (1), and if the mode is judged to be the first cleaning mode, after cleaning is finished, entering the step 13 after cleaning is finished; if the second cleaning mode is judged, entering the step 16); the intensity of the first cleaning mode is less than that of the second cleaning mode;

13) the sewage discharge assembly is started to discharge sewage to a low level, so that H is positioned between H1 and H2; then making i ═ i + 1;

14) judging whether i is less than or equal to n, if so, entering the step 15); if not, go to step 17); n is a preset threshold value from high rank to low rank;

15) controlling the opening angle of the check valve plate (142) to be theta 2 and meet the condition that theta 2 is larger than theta 1, opening the fourth valve (372), operating the fan system (13), starting to discharge sewage, and ending the sewage discharge program when detecting that the liquid level height H meets the condition that H2 is larger than H is larger than H1;

16) starting the sewage discharge assembly, emptying the sewage in the oil collecting tank (371), starting the check valve plate (142) at an angle theta 2, starting the fourth valve (372), operating the fan system (13), discharging the sewage to a low position to meet the conditions that H2 is more than H is more than H1, and entering the step 17);

17) detecting the viscosity of the current sewage in the oil collecting tank (371), if the detected sewage viscosity does not exceed a preset threshold value, opening a check valve plate (142) of an air outlet cover (14) of the range hood (1) by an angle theta 1, simultaneously opening a fourth valve (372), opening a fan system (13), continuously discharging the sewage, and entering step 19); if the detected liquid viscosity exceeds a preset threshold value, entering step 18);

18) starting the steam generator (232), heating the hot water subjected to heat exchange of the stove (22) to a preset temperature again through the steam generator (232), introducing the hot water into a gap between the shell (36) and the oil collecting tank (371) through a fourth conduit (354), and heating the sewage in the oil collecting tank (371) to reduce the viscosity of the sewage; then the check valve plate (142) is closed, the fourth valve (372) is still opened, and sewage is discharged by utilizing the static pressure of pressure;

19) when sewage is discharged, judging whether the difference between the pressure of the fourth valve (372) and the pressure in the oil collecting tank (371) exceeds a preset pressure difference threshold value or not, if so, starting a steam generator (232), heating water to a preset temperature, spraying high-temperature steam to quickly dredge a pipeline, and then entering step 20); if not, directly entering step 20);

20) the liquid level sensor (375) detects the current liquid level height H, judges whether H is more than or equal to 0 and less than H1, if so, the pollution discharge procedure is ended; if not, go back to step 17).

Images