JP2016223697A - Heating cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating cooker preventing discomfort even by exposure to exhaust air.SOLUTION: The heating cooker comprises: an exhaust path 29 introducing exhaust air within a cooking container 25 generated when a cooking ingredient 33 is heated; exhaust treatment means 27 treating the exhaust air flowing through the exhaust path 29; a liquid medium stored in the exhaust treatment means 27; an ejection port section 41 disposed below a liquid level of the liquid medium and ejecting the exhaust air flowing through the exhaust path 29 into the liquid medium; an attraction pipe 30 connected to the exhaust treatment means 27 for introducing the treated exhaust air; and an ejector 28 connected to the attraction pipe 30 and attracting and transferring the treated exhaust air by an ejector effect, whereby the exhaust air turns into bubbles to contact the liquid medium, heat, vapor, soot, odor, etc. in the exhaust air are blended into the liquid medium, the exhaust air that becomes clean at a low temperature is discharged to outside of a casing 23, thus preventing discomfort.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an exhaust treatment of a cooking device used in a general household kitchen or a commercial kitchen.

  The conventional cooking device built in the induction heating cooker, when cooking cooking ingredients such as fish, the water vapor, oil smoke, odor, etc. generated during baking are from the exhaust opening opened at the rear of the cooking device. It is pushed out and sucked out outdoors by a ventilation fan installed above the cooking device in the installed kitchen.

  Patent Document 1 is disclosed as a configuration for efficiently sucking out the exhaust from the inside of the cooking device. FIG. 7 shows a cross-section of the main part of a conventional cooking device disclosed in Patent Document 1.

  As shown in FIG. 7, the cooking device 1 is located below the induction heating cooker 2 and is housed in the housing 3 integrally with the induction heating cooker 2, and the housing 3 is housed in the kitchen cabinet 4. Yes. Heating means (electric heaters) 7 for heating the cooking ingredients 5 are arranged above and below the cooking container 6 that accommodates the cooking ingredients 5.

  An opening 8 is provided at the rear of the cooking container 6, and an exhaust duct 10 communicating with the exhaust port 9 at the rear of the induction heating cooker 2 is provided. Further, a catalyst 11 for deodorization and a catalyst heater 12 for heating and activating the catalyst 11 are disposed at the end of the exhaust duct 10 on the cooking container 6 side. In the lower part of the exhaust duct 10, an induction duct 14 having a smoke exhaust fan (axial fan) 13 is disposed inside, and an ejection hole 15 and an induction duct 14 end portion opened in a substantially middle part of the exhaust duct 10 are provided. Communicate.

  The top plate 16 made of tempered glass disposed on the top surface of the induction heating cooker 2 usually covers the range from the front end (left end in the figure) to the exhaust port 9. Place the object to be heated, such as a pan, and cook it. A removable exhaust port cover 17 is placed on the exhaust port 9.

  In this configuration, the air sucked from the outside of the housing 3 by the rotational drive of the smoke exhaust fan 13 is ejected into the exhaust duct 10 through the induction duct 14 (solid arrow). And the negative pressure generate | occur | produces inside the exhaust duct 10 by the attraction | suction effect | action of the blown-out air, the exhaust from the cooking vessel 6 is attracted (broken line arrow), and it integrates with the air of the smoke exhaust fan 13 of the induction heating cooking appliance 2 It is discharged from the exhaust port 9. Further, at this time, the exhaust gas discharged from the cooking vessel 6 passes through the heated catalyst 11 and thus receives a deodorizing action. On the other hand, the cooling air of the induction heating cooker 2 is sucked from the front of the front surface or the lower surface of the induction heating cooker 2 to cool the internal heating coil or circuit and exhausted from the rear end of the induction heating cooker 2. (Dash-dotted arrow).

JP2013-139969A

However, in the conventional cooking device, the atmospheric temperature in the cooking vessel 6 is about 200 to 300 ° C, and the catalyst 11 that deodorizes by the action of platinum is generally 300 to 400 ° C.
Since the temperature is about the active temperature, there is a problem that the temperature of the exhaust gas at the exhaust port 9 is usually very high at 200 ° C. or higher even when mixed with air from outside in the exhaust duct 10.

  This invention solves the said conventional subject, and it aims at providing the cooking apparatus which discharges the exhaust_gas | exhaustion generate | occur | produced during cooking in a low temperature state.

In order to achieve the above object, the cooking device of the present invention comprises:
A cooking container capable of storing cooking ingredients;
A heating means arranged in the cooking container for heating the cooking ingredients;
An exhaust path that guides exhaust in the cooking container that is generated when the cooking ingredients are heated connected to the cooking container;
An airtight exhaust processing means for processing exhaust gas flowing in through the exhaust path;
A liquid medium stored in the exhaust treatment means;
A spout port that is disposed below the liquid level of the liquid medium and ejects exhaust gas flowing through the exhaust path into the liquid medium;
An induction tube connected to the exhaust treatment means for guiding the exhaust treated in the exhaust treatment means;
The ejector is connected to the induction pipe and includes an ejector for attracting and transferring the exhaust gas processed by the exhaust processing means by an ejector effect.

  As a result, the cooking ingredients are heated in the cooking container to generate exhaust such as water vapor, oily smoke, odor, etc., but the cooking container is connected to the exhaust path, the exhaust processing means, the induction tube, and the ejector in order. The exhaust in the container is exhausted through the exhaust processing means by the ejector effect. At this time, the exhaust gas passes through the liquid medium in the exhaust treatment means, so that heat, water vapor, oily smoke, odor, etc. in the exhaust gas are dissolved in the liquid medium, and the exhaust gas that has become a clean and low temperature is outside the exhaust treatment means and It is discharged to the outside of the housing at a low temperature.

  The cooking device according to the present invention can discharge the heat generated during cooking to the outside of the casing after performing a cooling process.

Plan sectional drawing which showed the heating cooking appliance in Embodiment 1 of this invention Side surface sectional drawing of the heating container of the heating cooking appliance in Embodiment 1 of this invention Side surface sectional drawing of the exhaust treatment means in Embodiment 1 of this invention Plane sectional view of the main part of the ejector according to Embodiment 1 of the present invention Side surface sectional drawing of the ejector in Embodiment 1 of this invention Characteristic diagram of cooking device in Embodiment 1 of the present invention (a) Graph showing operational characteristics of centrifugal blower drive flow rate and centrifugal blower drive pressure (b) Relationship between drive flow rate of centrifugal blower and induced flow rate of ejector Graph showing Side sectional view showing a conventional cooking device

The first invention is
A cooking container capable of storing cooking ingredients;
A heating means arranged in the cooking container for heating the cooking ingredients;
An exhaust path that guides exhaust in the cooking container that is generated when the cooking ingredients are heated connected to the cooking container;
An airtight exhaust processing means for processing exhaust gas flowing in through the exhaust path;
A liquid medium stored in the exhaust treatment means;
A spout port that is disposed below the liquid level of the liquid medium and ejects exhaust gas flowing through the exhaust path into the liquid medium;
An induction tube connected to the exhaust treatment means for guiding the exhaust treated in the exhaust treatment means;
The ejector is connected to the induction pipe and includes an ejector for attracting and transferring the exhaust gas processed by the exhaust processing means by an ejector effect.

  As a result, the cooking ingredients are heated in the cooking container to generate exhaust such as water vapor, oily smoke, odor, etc., but the cooking container is connected to the exhaust path, the exhaust processing means, the induction tube, and the ejector in order. The exhaust in the container is exhausted through the exhaust processing means by the ejector effect. At this time, the exhaust gas passes through the liquid medium in the exhaust treatment means, so that heat, water vapor, oily smoke, odor, etc. in the exhaust gas are dissolved in the liquid medium, and the exhaust gas that has become a clean and low temperature is outside the exhaust treatment means and It is discharged to the outside of the housing at a low temperature.

  Therefore, the cooking device according to the present invention allows the user of the cooking device to exhaust the exhaust gas generated during cooking by cooling, dehumidifying, removing smoke, deodorizing, and the like and then discharging it outside the casing. Discomfort does not occur even if it is made to be.

  The second aspect of the invention is particularly the ejector of the first aspect of the invention. The nozzle for constricting the flow path to increase the flow velocity, the centrifugal blower for sending the outside air to the nozzle, and the chamber in which the outside air having the increased flow velocity is injected by the nozzle. It was set as the structure which has.

  As a result, the flow rate of the air pumped by the centrifugal blower is increased by the nozzle, the inside of the chamber becomes negative pressure (ejector effect), and the exhaust in the cooking container connected to the ejector via the exhaust path can be induced. it can.

  According to the third aspect of the invention, the exhaust treatment means of the first or second aspect of the invention is configured to be detachable from the exhaust path and the induction pipe in an airtight manner.

  As a result, the liquid medium stored in the exhaust treatment means and subjected to the exhaust treatment can be easily replaced, and the process can be immediately transferred to the next firing step. Moreover, since it attaches and detaches in an airtight manner, air leakage does not occur from the connecting portion, and only the exhaust can be reliably guided to the ejector located downstream.

  In the fourth aspect of the invention, the exhaust treatment means of any one of the first to third aspects of the invention has a lid that can be opened and closed in an airtight manner.

  Thereby, it is possible to reliably guide only the exhaust gas to the ejector located downstream without causing air leakage.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a plan sectional view showing a cooking device according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional side view taken along the line AA of FIG. 1 showing the cooking device. FIG. 3 is a cross-sectional side view taken along the line BB of FIG. 1 showing the cooking device. FIG. 4 is a cross-sectional plan view of an essential part showing an ejector of the cooking device. FIG. 5 is a cross-sectional side view taken along the line CC of FIG. 1 showing the cooking device. Fig.6 (a) is a graph which shows the operating characteristic of the drive flow volume of the centrifugal blower which comprises the ejector of the same heating cooking apparatus, and the drive pressure of a centrifugal blower. FIG. 6B is a graph showing the relationship between the driving flow rate of the centrifugal blower and the attractive pressure of the ejector.

  As shown in FIGS. 1 and 2, the cooking device 21 is disposed below the induction heating cooker 22 and is included in a housing 23 and provided in a cabinet 24 of a system kitchen.

  The cooking device 21 includes a cooking container 25 that can store the cooking ingredients 33, and heating means 26 a and 26 b that are disposed in the upper and lower partitioned spaces of the cooking container 25 and heat the cooking ingredients 33. The cooking device 21 is connected to the cooking container 25 and performs processing of an exhaust path 29 that guides exhaust in the cooking container 25 that is generated when the cooking ingredients 33 are heated, and an exhaust gas that flows through the exhaust path 29. The exhaust treatment means 27 is configured to be airtight, the induction pipe 30 is connected to the exhaust treatment means 27 to guide the exhaust gas processed in the exhaust treatment means 27, and is connected to the induction pipe 30 and processed by the exhaust treatment means 27. In addition, an ejector 28 for attracting and transferring the exhaust gas by the ejector effect is provided. The exhaust path 29 is formed in a tubular shape, and connects the rear end portion of the cooking vessel 25 and the rear end portion of the exhaust processing means 27.

  The cooking container 25 has an openable / closable door 31 for putting the cooking ingredients 33 on the front side of the housing 23, and allows the top panel 25a directly below the upper heating means 26a to transmit heat and light that also serves as a protective fence. For this purpose, a large number of nozzles 41 are opened, and a heat-resistant glass floor 32 is disposed on the bottom surface. The upper heating means 26a is provided in the upper part of the cooking vessel 25, and includes one near red tube heater (also used for illumination), two far red tube heaters and a reflector (not shown) for heating the cooking ingredients 33. It is composed of The lower heating means 26b is composed of two far-infrared tube heaters and a reflector (not shown) for heating the cooked food 33 provided below the heat-resistant glass floor 32. The upper heating means 26a and the lower heating means 26b are controlled by a control unit (not shown). The casing 23 is arranged with a gap between the cooking container 25 and the heating means 26a, 26b. The cooking food 33 is placed on an aluminum or iron cooking dish 34 coated with fluorine. The cooking dish 34 is placed on a heat-resistant glass floor 32, and the cooking food 33 is heated and baked by the heating means 26a and 26b. .

  The rear end 23A of the housing 23 is provided with an exhaust port 50 for discharging the air inside the housing 23 to the rear outside of the housing 23. This exhaust port 50 is installed on the top surface of the induction heating cooker 22 and is provided with a rear portion 51A of a tempered glass top plate 51 and a rear end portion of the housing 23 on which a pan as a heated object can be placed. The exhaust port 50 has a height direction length of several millimeters, but the width direction length is provided over the entire width of the housing 23.

  The induction heating cooker 22 is disposed on the upper portion of the cooking container 25 disposed in the housing 23. The induction heating cooker 22 is an object to be heated in which, for example, one or a plurality of heating coils (not shown) are arranged directly below the top plate 51 and are placed on the top plate 51 by the heating coils. It is configured to inductively heat a metal cooking pan or the like. The induction heating cooker 22 has a configuration in which a cooling fan (not shown) is built inside, the outside air is sucked by the cooling fan, and a heat generating member (not shown) arranged inside is cooled. .

The configuration of the exhaust processing means 27 will be described with reference to FIG. FIG. 3 is a side cross-sectional view of the exhaust treatment means 27, and particularly a cross-sectional view taken along the line BB in FIG.
The exhaust processing means 27 includes a processing container 36 that stores water 35 as a liquid medium to a certain depth, and an inflow connection portion 37 that is disposed above the processing container 36 and that is configured to be connected to and exhausted from the exhaust path 29 in an airtight manner. A plate member 42 having a large number of outlets 41 (for example, a dozen to a hundred and a few tens of millimeters of circular holes) through which the exhaust gas guided from the exhaust passage 29 flows into the water 35. The lid 43 covers the opening formed in the upper part of the processing container 36 in an airtight and detachable manner, and the outflow connection part 44 formed on the side surface of the processing container 36 and connected to the induction tube 30. Each of the inflow connection portion 37 and the outflow connection portion 44 is disposed so as to be above the water surface when a predetermined amount of water 35 is put into the processing container 36, and the outflow connection portion 44 is more than the inflow connection portion 37. Located above. The plate member 42 is detachably disposed on the bottom surface of the processing container 36 so that the spout 41 is always below the surface of the water 35 when a predetermined amount of water 35 is put into the processing container 36. A flow path 45 that guides the exhaust gas that has entered from the inflow connection portion 37 to the lower side of the plate member 42 is formed inside the processing container 36.

  Further, the inflow connection portion 37 and the outflow connection portion 44 have a tubular member protruding from the rear side of the processing vessel 36 so that the exhaust passage 29 and the induction tube 30 can be easily attached and detached. Designed to mate with 30. Further, at least one O-ring or packing is disposed on the outer periphery of the inflow connection portion 37 and the outflow connection portion 44 so as to be airtightly connected, so that no external air flows into the processing container 36 due to air leakage from the attachment / detachment portion. I have to. A handle 46 is disposed on the front surface of the processing container 36, and the user can remove the processing container 36 from the housing 23 by pulling out and pushing the handle 46.

  The induction pipe 30 is connected to the processing container 36 constituting the exhaust processing means 27 via the outflow connection portion 44 and is configured to guide the exhaust gas processed by the exhaust processing means 27 to the ejector 28.

The configuration of the ejector 28 will be described with reference to FIGS. 4 and 5.
The ejector 28 is connected to a turbo fan 47, which is a centrifugal blower that inputs outside air and sends the outside air, and a blowout port of the turbo fan 47, and has a substantially conical shape with respect to the air flow of the outside air sent from the turbo fan 47. The nozzle 48 for narrowing the flow path to increase (increase) the flow velocity, the chamber 49 disposed downstream of the nozzle 48 and injected with the outside air whose flow velocity is increased by the nozzle 48, both the chamber 49 and the exhaust processing means 27 An induction pipe 30 for attracting the exhaust gas in the communication exhaust processing means 27 into the chamber 49, and the mixture of the air in the chamber 49 and the exhaust gas from the exhaust processing means 27 arranged downstream of the chamber 49 to the outside of the ejector. It has an ejector outlet 28A for delivery. The ejector outlet 28A opens in the direction of the rear end 23A of the casing 23, and the air-fuel mixture of the air in the chamber 49 and the exhaust from the exhaust processing means 27 is discharged into the casing 23 from the ejector outlet 28A. The Accordingly, the turbo fan 47, which is a centrifugal blower, sends outside air to the nozzle 48, and the turbo fan 47 is controlled by a control unit (not shown) in the same manner as the heating means 26a, 26b. The outlet of the turbo fan 47, the nozzle 48, and the chamber 49 are arranged linearly.

The operation of the cooking device configured as described above will be described.
First, the heating means 26a and 26b will be described. The cooking dish 34 on which cooking ingredients 33 such as fish are placed is opened on the heat-resistant glass floor 32 by opening the door 31, and then the door 31 is closed. Next, the control unit appropriately energizes the upper heating unit 26a, the lower heating unit 26b, and the turbo fan 47. As a first procedure, the radiation from the near red tube heater and the far red tube heater of the upper heating means 26a is reflected directly or reflected by the reflecting plate and passes through a number of jet outlets 41 formed on the top panel 25a. Then, the upper surface of the cooking ingredients 33 is baked and cooked. As a second procedure, the radiation from the far-infrared tube heater of the lower heating means 26b is directly reflected by the reflecting plate and passes through the heat-resistant glass floor 32 to heat the lower surface of the cooking dish 34. Subsequently, the cooking dish 34 whose temperature has risen baked and cooks the lower surface of the cooking food 33 by heat conduction.

For example, when the cooked food material 33 is salted rice cake, the control unit starts driving the turbo fan 47 and performs the first and second procedures at the same time to bake the upper and lower surfaces of the salted rice cake. At the same time, the control unit estimates the number of tails (heat capacity) of salmon from the temperature change of a temperature sensor (not shown) arranged in the vicinity of the exhaust path 29 of the cooking vessel 25, the predetermined temperature arrival time, and the like. Determine the baking time to be marked with. Thereafter, when the determined baking time has elapsed, the control unit lowers the input power to the upper heating means 26a and the lower heating means 26b in the first and second procedures in order to prevent scorching. Next, when the determined baking time elapses, the control unit stops energizing the upper heating means 26a and the lower heating means 26b, and appropriately stops energizing the turbo fan 47. To do.

  During cooking, the temperature in the cooking vessel 25 rises to about 200-300 ° C. At that time, heating due to convection is also added, and the temperature of the salted food 33 is also increased, so that steam, oil, odor components, etc. Will occur. Furthermore, water vapor, oil, etc. are heated by the upper heating means 26a and the cooking pan 34, and also heated by the convection described above, and exhaust gas containing superheated steam and oil smoke is generated. The approximate amount of exhaust was estimated to be 20-30 L / min.

  These exhausts generated in the cooking vessel 25 exit from the cooking vessel 25 through the exhaust route 29 via the exhaust route 29 through the route shown by the black arrows shown in FIGS. It is discharged into the housing 23 by the ejector 28 via the tube 30 and then discharged to the outside from the exhaust port 50 of the housing 23. The position of the exhaust port 50 of the housing 23 may be, for example, the rear portion of the housing 23 or the front portion of the housing 23.

Next, the operation and action of the exhaust processing means 27 and the ejector 28 will be described.
The operation of the exhaust processing means 27 will be described mainly with reference to FIG. 3 is a cross-sectional side view taken along the line BB in FIG. The exhaust gas that has exited the cooking vessel 25 and passed through the exhaust passage 29 passes through the inflow connection portion 37 of the processing vessel 36, passes through the flow path 45 provided in the processing vessel 36, and is formed with a number of jet nozzles below the surface of the water 35. The water is ejected from the portion 41 into the water 35. The exhaust gas moves in the direction of the water surface in the form of bubbles in the water 35, but moves toward the water surface while moving in the forward direction of the cooking device 21 by the momentum of the exhaust gas flowing through the flow path 45.

  At this time, the exhaust gas is ejected from a large number of ejection port portions 41 to form a large number of bubbles in the water 35. That is, since the contact area between the exhaust and water is large, steam, oily smoke, and odor components (for example, trimethylamine and some aldehydes) in the exhaust are efficiently dissolved in water. The temperature of the water 35 rises mainly due to the latent heat of water vapor.

  At this time, the exhaust gas is cooled to substantially the same temperature as the water 35, the water vapor is dehumidified by condensation (dissolution), and further, the exhaust heat treatment is performed such that the oil smoke and odor components are dissolved in the water 35 to remove smoke and deodorize. Thereafter, the treated exhaust gas that has accumulated in the space above the water 35 passes through the outflow connection 44 and passes through the induction pipe 30 toward the ejector 28.

  Since the exhaust gas that has passed through the exhaust gas processing means 27 has its heat removed by the water 35 and oily smoke, odor, and the like have been purified, it is possible to suppress deterioration, dirt, etc. around the cooking device 21 main body and equipment.

  Here, when the temperature of the exhaust gas after the treatment was measured, the water temperature immediately after simultaneously firing the five Shimama and the exhaust gas temperature after the treatment were both around 50 ° C.

  In addition, the odor component (for example, methyl mercaptan slightly dissolved 2.3 g / 100 mL (20 ° C.)) having low solubility in the water 35 contained in the exhaust gas is discharged slightly without being dissolved, but diluted with cooling air. So there is no problem of odor practically. When cooking of the cooking ingredients 33 is completed, the controller stops energizing the upper heating means 26a and the lower heating means 26b, and appropriately stops energizing the turbo fan 47.

  Then, after all the processing is stopped, the processing container 36 is removed, the water inside is replaced, and the processing container 36 is set again, so that even if cooking of the cooking ingredients is started again, the exhaust treatment can be performed immediately.

The operation of the ejector 28 will be described mainly with reference to FIGS. 4 is a cross-sectional side view taken along line AA in FIG. 1, and FIG. 5 is a cross-sectional side view taken along line CC in FIG.
When the centrifugal blower used in the present embodiment is activated, it draws outside air indicated by a white arrow in the figure, and a driving flow rate sufficient to cool the exhaust (for example, around 100 L / min) and induces exhaust through water. In order to generate a negative pressure (for example, minus several hundred Pa to several kPa) required for the ejector effect, it is preferable to have a characteristic of ejecting at a high driving pressure. As a centrifugal blower having this characteristic, the turbo fan 47 is suitable. It is. This is because in order for the exhaust gas to pass through the water 35 of the exhaust gas processing means 27, a negative pressure equal to or higher than the water pressure corresponding to the water depth of the jet port 41 is required. The water pressure applied to the exhaust of the jet port 41 is expressed as the product of water density, water depth, and gravitational acceleration. For example, the water pressure at a water depth of 50 mm is about 500 Pa. Therefore, if the negative pressure in the chamber 49 is −500 Pa or less, for example, −600 Pa to −1 kPa, exhaust can be attracted from the cooking vessel 25. Further, since the nozzle 48 has a throttle shape, when the flow rate increases, for example, the pressure loss increases in the square.

Therefore, the characteristics required for the turbo fan 47 which is a centrifugal blower were estimated using CAE (computer simulation computer aided engineering), and the following two characteristic graphs were obtained. 6A is a graph showing operating characteristics of the driving flow rate of the turbo fan 47 and the driving pressure of the turbo fan 47. FIG. FIG. 6B is a graph showing the relationship between the drive flow rate of the turbo fan 47 and the attractive pressure.
As is apparent from the respective graphs, the driving flow rate of the turbo fan 47 for securing the required attractive flow rate was estimated to be several tens to several hundreds tens L / min, the driving pressure, several kPa to several tens kPa.

  The turbo fan 47 is disposed at a position away from the cooking container 25 at the rear part in the housing 23 and is disposed so as to attract air in the housing 23. An intake hole may be formed in the surface of the housing 23 facing the intake port of the turbo fan 47. This is to avoid the influence of heat inside the housing 23 as much as possible and keep the temperature of the attracting air low. The nozzle 48, the chamber 49, and the induction tube 30 are joined to the jet outlet of the turbo fan 47 so that there is no air leakage. These may be formed integrally. Since the flow path of the high-pressure air ejected from the turbo fan 47 is restricted by the nozzle 48, the flow velocity increases and the air is ejected from the tip of the nozzle 48 into the chamber 49. At this time, according to Bernoulli's theorem, a pressure difference inversely proportional to the square of the increased flow velocity is generated, and as a result, a negative pressure is generated inside the chamber 49 (ejector effect). Due to this negative pressure, the upper space of the water 35 of the processing vessel 36 connected via the induction pipe 30 becomes a negative pressure, and this negative pressure induces the exhaust path 29 and the exhaust in the cooking vessel 25 through the water 35. Is done. At this time, since the inside of the cooking vessel 25 is slightly positive pressure due to the exhaust generated by heating and the thermal expansion of the gas due to the temperature rise, the inflow of the exhaust from the cooking vessel 25 to the exhaust path 29 is further promoted. . As a result, almost all of the exhaust generated by heating the cooking ingredients 33 is exhausted through the exhaust processing means 27 and the temperature is lowered, and is further discharged into the housing 23 by the ejector 28 via the induction tube 30. Thereafter, the gas is discharged from the exhaust port 50 of the housing 23 to the outside. The exhaust gas discharged into the housing 23 by the ejector 28 and having a low temperature is cooled from the outside of the housing 23 indicated by a dashed line in FIG. 5 generated by a cooling fan (not shown) built in the induction heating cooker 22. The wind is mixed in the vicinity of the exhaust port 50 of the housing 23, and the temperature of the exhaust is further reduced and discharged to the outside of the cooking device 21.

As is apparent from the above description, in the present embodiment, the cooking food 33 is heated in the cooking container 25 to generate exhaust gas such as water vapor, oily smoke, and odor. The processing means 27, the induction tube 30, and the ejector 28 are connected in order, and the exhaust in the cooking vessel 25 is exhausted through the exhaust processing means 27 by the ejector effect. At this time, the exhaust gas passes through the liquid medium in the exhaust gas processing means 27, so that heat, water vapor, oily smoke, odor, etc. in the exhaust gas are dissolved in the liquid medium, and the exhaust gas that has become a clean and low temperature is discharged from the exhaust gas processing means 27. It is discharged outside and outside the housing 23 at a low temperature.

  Therefore, the cooking device according to the present embodiment performs processing such as cooling, dehumidification, smoke removal, and deodorization on the exhaust generated during cooking, and then discharges it outside the housing 23, thereby There is no discomfort even if the user is exposed to the exhaust.

  Moreover, before heating the cooking foodstuff 33, a user puts the water 35 (liquid medium) in the processing container 36 removed from the heating cooking appliance 21, attaches to the heating cooking appliance 21 again, and starts cooking. At this time, since the inflow connection portion 37 and the outflow connection portion 44 that are attachment / detachment portions are provided above the liquid level of the water 35 that is a liquid medium, the water 35 does not leak from the processing container 36 during attachment / detachment. Furthermore, since the attaching / detaching portion is configured to be airtight, air from outside the processing container 36 does not enter the exhaust from the attaching / detaching portion during cooking, and processing such as cooling, dehumidification, smoke removal, and deodorization is surely performed. As a result, only clean and low-temperature exhaust is discharged out of the housing 23.

  For example, when it is set as the structure which exhausts in front of the housing | casing 23, the back and right and left surfaces of the induction heating cooking appliance 22 with which the heating cooking appliance 21 is mounted can be used freely, and especially the design property and usability of an upper surface improve. The top plate 51 of the induction heating cooker 22 can be arranged without a step difference from the top surface of the kitchen because there is no exhaust port at the back, which is normally arranged, and has an effect that the design is remarkably improved.

  In addition to water, the liquid medium may be acidic water or alkaline water. When acidic water is used, the alkaline components in the exhaust are better removed. When alkaline water is used, the acidic medium in the exhaust Ingredients are better removed.

  The centrifugal blower 47 may be a sirocco fan. In that case, a configuration is required such as reducing the pressure required to allow water to pass by reducing the water depth.

  The processing vessel 36 may be directly connected to the water supply and the sewage pipe, and the exhausted water 35 may be drained into the sewage during or after cooking, and the water may be automatically supplied.

  The driving flow rate and the driving pressure required for the turbo fan 47 vary depending on the shape and size of the nozzle 48, and are not limited to the range described in the present embodiment, and are necessary and sufficient for attracting exhaust from the cooking vessel 25. It is only necessary to realize an attractive flow rate and to allow the water in the processing vessel 36 to pass through. For example, if the size of the nozzle 48 is increased, the pressure loss of the nozzle 48 itself is reduced. As a result, the driving pressure of the turbo fan 47 necessary for realizing the same attraction performance is reduced and the driving flow rate is increased. Therefore, the range shown in FIG. 6 is merely an example, and does not limit the invention.

  Further, in the present embodiment, the example using the electric heater as the heating means 26a and 26b has been described. However, the present invention is not limited to this, and the same applies to the configuration using gas as the heating means 26a and 26b. An effect can be obtained.

  As described above, the cooking device according to the present invention exposes the user of the cooking device to the exhaust by performing a cooling process on the exhaust generated during cooking and then discharging it to the outside of the casing. However, since no discomfort occurs, it can be used for various cooking devices.

DESCRIPTION OF SYMBOLS 21 Cooking device 22 Induction cooking device 23 Case 25 Cooking container 26a, 26b Heating means 27 Exhaust processing means 28 Ejector 28A Ejector exit 29 Exhaust path 30 Induction pipe 33 Cooking food 35 Water (liquid medium)
36 processing container 37 inflow connection part 41 spout part 43 lid 44 outflow connection part 47 turbo fan (centrifugal blower)
48 Nozzle 49 Chamber 50 Exhaust port 51 Top plate

Claims (4)

A cooking container capable of storing cooking ingredients;
A heating means arranged in the cooking container for heating the cooking ingredients;
An exhaust path that guides exhaust in the cooking container that is generated when the cooking ingredients are heated connected to the cooking container;
An airtight exhaust processing means for processing exhaust gas flowing in through the exhaust path;
A liquid medium stored in the exhaust treatment means;
A spout port that is disposed below the liquid level of the liquid medium and ejects exhaust gas flowing through the exhaust path into the liquid medium;
An induction tube connected to the exhaust treatment means for guiding the exhaust treated in the exhaust treatment means;
A cooking device comprising an ejector that is connected to the induction pipe and that attracts and transfers the exhaust gas processed by the exhaust gas processing means by an ejector effect. The ejector
A nozzle to squeeze the flow path and increase the flow velocity;
A centrifugal blower for sending outside air to the nozzle;
The cooking device according to claim 1, further comprising a chamber in which outside air whose flow rate is increased by the nozzle is injected. The cooking apparatus according to claim 1 or 2, wherein the exhaust processing means is configured to be detachable from the exhaust path and the induction pipe in an airtight manner. The cooking apparatus according to any one of claims 1 to 3, wherein the exhaust processing means includes a lid that can be opened and closed in an airtight manner.

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