WO2008053699A1 - Device for diluting discharged vapor and cooker with the same - Google Patents
Device for diluting discharged vapor and cooker with the same Download PDFInfo
- Publication number
- WO2008053699A1 WO2008053699A1 PCT/JP2007/070113 JP2007070113W WO2008053699A1 WO 2008053699 A1 WO2008053699 A1 WO 2008053699A1 JP 2007070113 W JP2007070113 W JP 2007070113W WO 2008053699 A1 WO2008053699 A1 WO 2008053699A1
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- WIPO (PCT)
- Prior art keywords
- exhaust
- duct
- steam
- port
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
- F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation
- F24C15/327—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation with air moisturising
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
- F24C15/2007—Removing cooking fumes from oven cavities
Definitions
- the present invention relates to an exhaust steam dilution device that dilutes exhaust steam discharged from an exhaust passage by a heating cooker, and a heating cooker including the exhaust steam dilution device.
- Oven-type heating cookers in which ingredients are put into a heating chamber and cooked with a heat medium have been penetrating into homes in Japan.
- oven-type cooking devices such as those using radiant heat, heat media, and high-frequency heating. These may be used in combination.
- typical heat medium is hot air and superheated steam obtained by heating air.
- Patent Document 1 describes a cooker that uses superheated steam as a heat medium.
- Patent Document 2 describes a cooker capable of selectively using superheated steam or hot air as a heat medium.
- Patent Document 1 Japanese Patent Laid-Open No. 2005-195247
- Patent Document 2 JP 2006-84082 A
- the heat medium In an oven-type cooking device that heats with a heat medium, the heat medium is circulated while being heated. When steam is used as the heat medium, steam generated by the steam generator is added to the circulating flow. The heated heat medium is blown out vigorously into the heating chamber, rapidly heating the food.
- the heat medium is pressurized by a blower and is blown into the heating chamber. This also means that the internal pressure of the heating chamber increases if the inside is turned back. If the internal pressure increases too much, the door of the heating chamber that is kept closed by the force of the spring may open. In order to prevent this, an exhaust passage is provided in the heating chamber, and when the internal pressure becomes too high, the heat medium is naturally discharged from the exhaust passage. When the cooking chamber is opened and the cooking chamber is opened and the food is taken out, the exhaust passage is directed toward the user and reduces the amount of heat medium. However, it is also used for applications in which the heat medium is forcibly discharged from the previous stage.
- Exhaust gas from the exhaust path contains power at a high temperature, and contains a large amount of steam and oily smoke. For this reason, when the wall is approaching directly above or to the side of the exhaust port, the wall is directly exposed to high-temperature steam, which may cause the wall to get wet.
- the present invention has been made in view of the above points, and an object of the present invention is to provide a heating cooker provided with an exhaust passage for discharging the gas in the heating chamber to the outside, in the vicinity of the wall.
- the purpose is to provide a mechanism that prevents the walls from getting wet.
- the present invention provides an exhaust steam dilution apparatus for diluting exhaust steam discharged from an exhaust passage by a heating cooker, with exhaust steam and outside air discharged from the heating cooker. It is characterized by providing a duct that sucks and mixes at the same time and opens the outlet of this duct in a predetermined direction.
- the exhaust steam discharged from the heating path of the heating cooker is mixed with the outside air and diluted, so that even if it flows toward the wall, it is difficult to wet the wall. Also, if the duct outlet is not directed toward the wall, the exhaust steam itself flowing toward the wall can be reduced.
- the present invention is characterized in that, in the exhaust vapor dilution apparatus having the above-described configuration, the predetermined direction in which the air outlet of the duct opens is a front direction or an oblique front direction of the cooking device.
- the diluted exhaust steam is discharged in the front direction or diagonally front direction of the cooking device, so that cooking is performed in the gap space of the kitchen such as under the hanging cabinet or between the wall and the refrigerator. Even if a vessel is placed, water vapor does not accumulate in the gap space. For this reason, it is possible to prevent the wall surface of the gap space from becoming hot or causing condensation on the wall surface.
- the present invention provides the exhaust vapor dilution apparatus having the above-described configuration, wherein the duct has a suction port at one end and the blowout port at the other end, and the suction port covers the exhaust port of the exhaust path.
- a feature is that the gap between the exhaust and the exhaust port becomes an outside air intake!
- the present invention is characterized in that, in the exhaust vapor dilution apparatus having the above configuration, a wind direction adjusting device is provided at the outlet.
- the direction of the exhaust gas can be changed according to the installation location of the cooking device, and the exhaust gas can be deflected from a location where the exhaust gas is not desired to be applied.
- the present invention provides the exhaust vapor dilution apparatus having the above-described configuration, wherein a throat portion having a reduced flow area is formed in the middle of the duct, and the nozzle disposed coaxially with the throat portion is directed toward the outlet.
- a special feature is to generate a suction force at the suction port by blowing air from the blower.
- the ejector structure including the throat portion and the nozzle generates suction force, and the sucked gas does not pass through the blower, so the blower is a high-temperature, high-humidity gas. If you are exposed to a malfunction!
- the duct is a branch duct in which a portion on the downstream side of the throat portion is divided into two branches, and the branch ducts are separated from each other.
- the air outlet extends obliquely so that the air outlet is formed at the end thereof.
- the present invention is characterized in that a section from the suction port to the throat portion has a bottom surface that is lowered toward the suction port, thereby forming a drainage channel to the exhaust port. It is said.
- the present invention provides a section from the throat portion to the outlet, the bottom surface of which is lowered toward the outlet, and a water reservoir recess is formed at the lowest position. It is characterized by that! / [0022] According to this configuration, the dew condensation water in the section from the throat portion to the outlet can be stored in the water reservoir recess, and water does not drip at the outlet force.
- the present invention is characterized in that, in the exhaust vapor dilution apparatus configured as described above, at least a part of the top surface portion of the duct is detachable.
- the exhaust vapor dilution apparatus configured as described above, at least a part of the top surface portion of the duct is detachable, and at least a joint portion between the detachable top surface portion and the duct main body is provided. In the section from the throat portion to the outlet, steam leakage prevention means is provided.
- the internal pressure of the duct becomes a positive pressure downstream of the throat portion. Therefore, in the section from the throat to the outlet, steam is likely to leak from the joint between the removable top surface and the duct body. Providing a steam leak means at this point is significant in increasing the value of the product.
- the present invention is characterized in that, in the exhaust vapor dilution apparatus configured as described above, the duct and the blower constitute a detachable exhaust temperature lowering unit separate from the heating cooker body.
- the duct and the air blower can be supplied only to users who need it, and the heating cooker body can be made inexpensive.
- the present invention provides the exhaust vapor dilution apparatus having the above-described configuration, wherein an mutual positioning means is provided between the exhaust temperature lowering unit and the heating cooker main body, and the adapter that adapts the suction port I to the exhaust path. Is available! /, And is characterized by! /
- the exhaust temperature lowering unit and the heating cooker body are connected by a connector, and power supply and control are performed from the heating cooker body to the exhaust temperature lowering unit.
- the exhaust temperature lowering unit is controlled in accordance with the operation of the heating cooker body. This saves the trouble of manually operating the exhaust cooling unit.
- the present invention is characterized in that, in the exhaust vapor dilution apparatus having the above-described configuration, an isolation chamber for electrical components is formed on the lower surface of the exhaust temperature lowering unit.
- the electrical component can be protected from a heat medium, water vapor, oily smoke, and the like.
- the exhaust temperature lowering unit includes a detachable top plate constituting a top surface portion, and the inside of the duct can be exposed by removing the top plate. It is characterized by
- the present invention provides the exhaust vapor dilution apparatus configured as described above, wherein the top plate is divided into a front top plate and a rear top plate, and a wind direction adjusting device for the outlet is provided on the front top plate. It is characterized by being.
- the present invention is characterized by being a heating cooker provided with the exhaust vapor dilution apparatus having the above-described configuration.
- the exhaust steam discharged from the heating cooker is mixed with the outside air to dilute it, and after reducing the factor that gives wetness, in the front direction or the oblique front direction of the heating cooker. Even if a heating cooker is placed in the gap space of the kitchen, such as under the hanging cupboard or between the wall and the refrigerator, water vapor does not accumulate in the gap space, the wall surface of the gap space becomes hot, It is possible to prevent condensation on the wall surface.
- the duct and blower as a detachable exhaust cooling unit that is separate from the cooker body, the duct and blower are supplied only to users who need it. The body can be made cheaper.
- FIG.10 Partially enlarged vertical sectional view of the portion indicated by line A—A in FIG.
- the cooking device 1 includes a cooking device body 2 and an exhaust temperature lowering unit 3.
- the structure will be described from the cooker body 2.
- the cooker body 2 has a rectangular parallelepiped cabinet 10, and a door 11 that opens and closes the opening of the heating chamber 20 is provided in front of the cabinet 10.
- the door 11 is pivoted in a vertical plane around a horizontal door pivot (not shown) provided at the bottom. By grasping the handle 12 at the top and pulling it forward, Vertical all shown in 2 The posture can be changed at right angles from the closed position to the horizontal open state shown in FIG.
- the door 11 is configured by symmetrically arranging a left portion 11L and a right portion 11R, which are finished with a metal decorative plate, on the left and right of a central portion 11C having a see-through portion fitted with heat-resistant glass.
- An operation unit 13 is provided on the right side portion 11R.
- “left side” refers to the left hand side of the user standing facing the cooking device 1
- “right side” refers to the right hand side of the same user.
- front part or “front”
- the part far from the user is called “rear part” or “back”.
- a heating chamber 20 is provided at a position corresponding to the central portion 11C of the door 11! /.
- a water tank storage unit 80 is provided at a position corresponding to the left side portion 11L of the door 11! /. There is no particular opening at the location corresponding to the right portion 11R of the door 11, but the control board is arranged inside that location.
- the heating chamber 20 has a rectangular parallelepiped shape, and the front side facing the door 11 is an opening for taking in and out food.
- the remaining surface of the heating chamber 20 is formed of a stainless steel plate. Heat insulation measures are taken around the heating chamber 20.
- the cooker body 2 can heat the food with a heat medium and can also heat the food using a high frequency.
- the heating mechanism will be described mainly with reference to FIG.
- a high frequency generator 21 is incorporated under the bottom of the heating chamber 20. That is, the bottom of the heating chamber 20 is made of a material that transmits high frequency such as glass or ceramic, and an antenna chamber 22 is formed thereunder.
- the antenna chamber 22 accommodates the antenna 23, and the antenna 23 is swung in the horizontal plane by the antenna motor 24.
- a high frequency is sent from the magnetron 25 to the antenna chamber 22 through the waveguide 26, and the antenna 23 supplies the fed high frequency to the heating chamber 20.
- the magnetron 25 is generated by a high-frequency drive power supply 27 (see Fig. 12).
- a lower heater 28 is disposed below the bottom of the heating chamber 20.
- the lower heater 28 heats the heat medium in the heating chamber 20 to a predetermined temperature in cooperation with the heat medium heater 42 described later.
- the heating cooker 1 uses superheated steam or hot air as a heat medium. It circulates through a circulation path composed of the heating chamber 20 and the external circulation path 30.
- the starting end of the external circulation path 30 is a suction port 31 formed in the upper part of the side wall at the back of the heating chamber 20.
- the suction port 31 is composed of a collection of small-diameter through holes.
- the blower 32 is attached to the outer surface of the side wall at the back of the heating chamber 20.
- the blower 32 includes a centrifugal fan 33, a fan casing 34 that accommodates the centrifugal fan 33, and a fan motor 35 (see FIG. 6) that rotates the centrifugal fan 33.
- a sirocco fan is used as the centrifugal fan 33.
- For the fan motor 35 a DC motor capable of high speed rotation is used.
- the heat medium discharged from the fan casing 34 is sent to the heat medium temperature raising unit 40 through the duct 36.
- the heating medium heating unit 40 is configured by arranging a heating medium heater 42 in a heating chamber 41 formed on the ceiling part of the heating chamber 20, and viewed from above, the central part of the ceiling part. It is provided at the location that corresponds to.
- the heat medium heater 42 is a sheathed heater.
- the heat medium raised in temperature by the heat medium temperature raising unit 40 is supplied into the heating chamber 20 in the form of a jet from above and from the side of the heating chamber 20.
- the circulation path of the heat medium passes from the suction port 31 formed in the back side wall of the heating chamber 20 through the air blower 32 attached to the outer surface of the side wall, Since it has a simple and shortest configuration in which it reaches the upper heat medium heating unit 40 and then returns to the heating chamber 20, it is easy to prevent air from entering from the outside. Therefore, by supplying a sufficient amount of water vapor to the heating chamber 20, the gas in the heating chamber 20 can be replaced with steam to achieve a low oxygen state (oxygen concentration of 0.5% or less) close to anoxic state. It became possible.
- An upper heat medium supply port 43 is provided in the upper part of the heating chamber 20.
- the upper heat medium supply port 43 is constituted by a fusible cover 44 which is a bottom portion of the heating chamber 41 and also a part of a ceiling portion of the heating chamber 20.
- the fumarole cover 44 has a shape in which a dome having a trapezoidal vertical cross section is turned upside down, and a plurality of fumaroles formed there constitute a jet forming portion.
- the blower cover 44 occupies a large area at the center of the blower cover 44
- the horizontal part has a plurality of vertical blow holes 45 that blow the heat medium directly below, and the slant part that surrounds the horizontal part blows the heat medium obliquely downward.
- a plurality of 46 are formed.
- Side heat medium supply ports 47 are provided on the outer sides of the left and right side walls of the heating chamber 20 symmetrically. Is provided.
- the heat medium is fed into the side heat medium supply port 47 from the heat medium heating unit 40 through the duct 48.
- the side of the side heat medium supply port 47 facing the heating chamber 20 is an opening, from which the heat medium is jetted out. That is, this part becomes the jet forming part.
- the bottom of the side heat medium supply port 47 serves as a guide part 49 that determines the jet direction.
- the heating cooker 1 includes a steam generator 60.
- the steam generator 60 has a cylindrical container 61 arranged with its center line vertical.
- the inside of the container 61 is concentrically divided by a cylindrical partition wall 62, the inner compartment is a water level detection chamber 63, and the outer compartment is a steam generation chamber 64.
- the partition wall 62 reaches near the bottom of the container 61, and the water level detection chamber 63 and the steam generation chamber 64 communicate with each other in water.
- the upper space of the water level detection chamber 63 is open to the atmosphere.
- a steam generation heater 65 in which a sheathed heater is wound in a coil shape is disposed as a means for heating water.
- a steam outlet pipe 64a that leads to the steam supply pipe 66 is provided in the upper part of the steam generation chamber 64.
- the steam outlet pipe 64a may be disposed on the side surface of the container 61, with the force S disposed on the ceiling of the container 61 in the figure.
- the outlet of the steam supply pipe 66 is connected to the suction side of the fan casing 34. That is, the fan casing 34 functions as a steam supply unit that supplies water vapor to the circulation path.
- the steam supply pipe 66 is composed of a flexible tube such as a rubber tube or silicon tube. If the steam outlet pipe 64a is formed integrally with the container 61, the steam outlet pipe 64a is inserted into the steam supply pipe 66 and the container 61 and the steam supply pipe 66 are connected.
- a water supply pipe 67 and an overflow pipe 68 are connected to the upper space of the water level detection chamber 63.
- the water supply pipe 67 is for pouring the water in the water tank 81 stored in the water tank storage section 80 (see FIG. 3) into the container 61, and a water supply pump 69 is provided in the middle.
- the bottom of the container 61 is formed in a funnel shape, from which the drain pipe 70 is led out.
- a drain valve 71 is provided in the middle of the drain pipe 70.
- the water supply pump 69 sucks water directly from the water tank 81, and sucks water from the relay tank 72 to which the water tank 81 is connected.
- An outlet pipe 82 protrudes from the bottom of the water tank 81 toward the back of the water tank storage section 80, and this outlet pipe 82 extends from the relay tank 72. Connect to inlet tube 73 protruding sideways.
- the water supply pipe 67 enters the relay tank 72 from above, and its tip reaches near the bottom of the relay tank 72.
- the overflow pipe 68 is connected to the upper space of the relay tank 72.
- the upper space of the relay tank 72 is opened to the atmosphere through a pressure release port (not shown), so that the upper space of the water level detection chamber 63 is also opened to the atmosphere.
- the drain pipe 70 is connected to the water supply port 83 of the water tank 81! /.
- a container water level sensor 75 as a water level detection means of the container 61 is disposed.
- the relay tank 72 is provided with a water level sensor 76 as its own water level detection means.
- the container water level sensor 75 is composed of a pair of electrode rods that hang from the ceiling of the water level detection chamber 63, and the water level sensor 76 is composed of a total of four electrode rods that hang from the ceiling of the relay tank 72.
- the electrode rod includes a ground potential electrode and an anode. Of the four electrode rods that make up the water level sensor 76, two reach the bottom of the relay tank 72, which is longer than the others. The other electrode is shorter than the last one.
- the container water level sensor 75 is slightly higher than the steam generating heater 65.
- the heating chamber 20 there is formed a leakage path 77 for adjusting the pressure by causing the heat medium to leak outside the apparatus when the indoor pressure rises.
- the fan casing 34 is formed with an exhaust passage 78 for exhausting a large amount of the heat medium at once.
- an electric damper 79 for opening and closing the exhaust passage 78 is provided!
- the fan casing 34 is configured by combining two shells 34a and 34b, and the shell 34a facing the heating chamber 20 is connected to the suction port 31.
- a suction port 37 is formed. Since the suction side of the centrifugal fan 33 has negative pressure, And the outer surface of the heating chamber 20 are likely to become an air entry port. In order to prevent this from happening, it is necessary to join the suction port 37 and the outer surface of the heating chamber 20 with force. This is because if air enters from there, it becomes difficult to realize oxygen-free cooking, which will be described later. In order to achieve this purpose, air intrusion prevention means is provided at the joint between the outer surface of the heating chamber 20 and the air inlet 37.
- the air intrusion prevention means makes the intake port 37 circular so that pressure is easily applied, a sealing material is sandwiched between the outer surface of the heating chamber 20 and the intake port 37, or the fan casing 34 is bolted. If it is connected to the heating chamber 20, it can be realized by implementing various measures alone or in combination, such as increasing the number of bolts. By carefully taking measures to prevent air intrusion at this location, the minimum oxygen concentration achieved when the gas in the heating chamber 20 is replaced with water vapor is reduced from about 1% to 0.5% without air intrusion prevention measures. It can be improved to about%.
- a duct 120 that forms the first half of the exhaust path 78 is formed in the shenole 34b on the far side of the calo heat chamber 20 force in a form that is back-to-back with the discharge part that discharges the heat medium to the duct 36. Is formed.
- the duct 120 extends toward the back side of the cabinet 10, and an opening 121 through which the arm 79a of the damper 79 passes is formed on the upper surface. Through this opening 121, the exhaust path 78 is opened to the atmosphere.
- An end cap 122 forming the latter half of the exhaust path 78 is connected to the end of the duct 120 via a gasket 123.
- An exhaust port 124 is formed on the upper surface of the end cap 122 to blow out the exhaust gas upward. In order to exhaust in a predetermined direction, the exhaust port 124 has a structure of a ventilation grill.
- the end cap 122 is exposed outside the machine at the upper upper corner of the cabinet 10.
- the exhaust port 124 is also exposed outside the machine.
- the direction of the exhaust blown out from the exhaust port 124 is directed straight ahead and slightly forward. This assumes that the cooking device 1 is placed near the wall and is a consideration to prevent the exhaust from fouling the back wall as much as possible.
- the leak path 77 is also connected to the end cap 122.
- Part 125 is provided.
- a water immersion retracting portion 125 is set at the bottom of the end cap 122.
- a drainage port 126 is formed in the flooded retreat part 125, and a drainage hose 127 is connected to the drainage port 126. Drain hose 127 drains water tray 128 (see Figure 5) placed at the bottom of cabinet 10.
- the control device 90 shown in FIG. 12 controls the operation of the cooking device 1.
- the control device 90 includes a microprocessor and a memory, and controls the cooking device 1 according to a predetermined program.
- the control status is displayed on the display unit 14 in the operation unit 13.
- the display unit 14 is configured by a liquid crystal panel, for example.
- An operation command is input to the control device 90 through various operation keys arranged on the operation unit 13.
- the operation unit 13 is also provided with a sound generating device for producing various sounds.
- the control device 90 includes an antenna motor 24, a high frequency drive power supply 27, a lower heater 28, a fan motor 35, a heat medium heater 42, a steam generating heater 65, a water supply pump 69.
- the drain valve 71, the damper 79, the container water level sensor 75, and the water level sensor 76 are connected.
- a temperature sensor 91 for measuring the temperature in the heating chamber 20 and a humidity sensor 92 for measuring the humidity in the exhaust through the exhaust path 78 are connected.
- the humidity sensor 92 is disposed on the inner wall of the duct 120 on the leeward side in the exhaust direction of the damper 79 so as to float from the bottom surface of the duct 120.
- the food F is supported in the heating chamber 20 by the food tray 100 that constitutes the food support unit U together with the food support net 110.
- a tray receiver that supports the inserted food tray 100 at a predetermined height.
- tray receivers that horizontally support the food tray 100 by engaging the left and right sides of the food tray 100 are formed on both side walls of the heating chamber 20.
- the tray receiver is provided in three stages from top to bottom.
- the first tray receiver 101 at the uppermost stage is a side heat medium that flows into the heating chamber 20 from the side heat medium supply port 47.
- the food tray 100 is supported at a position above the body flow.
- the second tray receiver 102 in the middle stage supports the food tray 100 at a position where the side heat medium flow is sprayed from above.
- the lowermost third tray receiver 103 supports the food tray 100 at a position spaced a predetermined distance below the second tray receiver 102.
- the first, second, and third tray receivers 101, 102, and 103 are ridge-shaped protrusions that protrude from the side wall surface of the heating chamber 20.
- the food support net 110 is placed on the food tray 100, and the food support net 110 is placed thereon. Ingredients F are placed on.
- the cooking mode of the heating cooker 1 includes a hot-air cooking mode in which heating is performed with hot air, a steam cooking mode in which heating is performed with water steam, and a high-frequency cooking mode in which heating is performed with high frequency.
- the steam cooking mode includes a steam baking cooking mode in which heating is performed with superheated steam and a steam cooking mode in which food is steamed with saturated steam.
- the operation of the cooker body 2 is as follows.
- When using superheated steam as the heating medium and cooking in the steam-bake cooking mode open the door 11, pull out the water tank 81 from the water tank housing 80, and supply water into the water tank 81 from the water supply port 83. Put in. Push the water tank 81 with enough water into the water tank housing 80 and set it in place.
- the outlet pipe 82 is firmly connected to the inlet pipe 73 of the relay tank 72
- the food tray 100 on which the food F is placed is inserted into the heating chamber 20 through the food support net 110. And close door 11. Then, press the necessary keys in the operation key group of the operation unit 13 to select the cooking menu and make various settings to start cooking.
- the controller 90 begins to generate water vapor. If the amount of water in the water tank 81 is insufficient to perform the selected cooking menu, the control device 90 displays that fact on the display unit 14 as a warning notification. Do not start generating water vapor until the water shortage is resolved.
- the saturated water vapor that has entered the heat medium heating section 40 is heated to 300 ° C by the heat medium heater 42, and becomes superheated steam.
- the superheated steam is jetted into the heating chamber 20 as a jet flowing downward and obliquely downward from the upper heat medium supply port 43.
- a part of the superheated steam is sent to the side heat medium supply port 47 through the duct 48 and is ejected from the side heat medium supply port 47 into the heating chamber 20 as a side heat medium flow slightly downward.
- the food F in the heating chamber 20 is heated by the heat generated by the superheated steam.
- foodstuff F is not only convectively transferred (specific heat of steam: 0.48 cal / g / ° C) but also condensed heat (latent heat) generated when superheated steam condenses on the surface. Heated. Because the heat of condensation is as large as 539 cal / g, it can give a large amount of heat to food F, and food F is heated rapidly. In addition, superheated steam preferentially condenses in food F at low temperatures and / or parts, so heating irregularities are reduced. [0087] When superheated steam adheres to the food F having a low surface temperature, it immediately condenses and becomes condensed water, and a large amount of heat is transferred by the condensation heat.
- the food F has a crisp finish while retaining moisture inside. Compared to cooking with hot air, it has greater effects of deoiling, reducing salt, inhibiting vitamin C destruction, and inhibiting fat oxidation.
- the heat medium heater 42 is not continuously energized. It is sometimes switched to energize the lower heater 28.
- the power consumption of the heater is set as follows, such as steam generation heater 65 power 1300W, heat medium heater 42 1300W, lower heater 28power S700W. Since two or more of these heaters cannot be energized at the same time, the optimum result is obtained by switching the energized objects sequentially in a time-sharing manner by duty control, even in the case of heating with hot air. It is the same.
- the water vapor in the heating chamber 20 enters the exhaust passage 78 from the leakage passage 77 and blows out from the exhaust port 124 when the internal pressure of the heating chamber 20 increases.
- the exhaust steam is diluted in the exhaust temperature lowering unit 3, which will be described later.
- the control device 90 resumes operation of the feed pump 69.
- the water supply pump 69 sucks up the water in the relay tank 72 and replenishes the container 61 with a certain amount of water. After the water replenishment is completed, the control device 90 stops the operation of the feed pump 69 again.
- the control device 90 displays a message to that effect on the display unit 14 and sounds a signal.
- a user who knows the end of cooking by sound and display opens the door 11 and pulls out the food tray 100 from the heating chamber 20. If there is no plan for further cooking, the drain valve 71 is opened, and the water in the container 61 is returned to the water tank 81.
- the damper 79 is illustrated in both the steam baking cooking mode and the steam cooking mode.
- the food F is heated while maintaining the oxygen concentration in the heating chamber 20 at 0.5% or less. With such an oxygen concentration, it is possible to almost realize the conditioning effect intended for oxygen-free heating.
- the hot air cooking mode using hot air as the heat medium is selected, energization of the heat medium heater 42 and operation of the blower 32 are started immediately without asking the amount of water in the water tank 81. This time, the food F is heated by the hot air jet. As in the case of heating with superheated steam, the heating of the heat medium heater 42 and the lower heater 28 is controlled in a time-sharing manner.
- the high frequency generator 21 When the high frequency cooking mode in which heating is performed with high frequency is selected, the high frequency generator 21 is driven.
- the high-frequency generator 21 can be used alone or in combination with superheated steam or hot air.
- the damper 79 moves to a position where the steam inflow to the humidity sensor 92 side of the exhaust path 78 is released. As a result, air containing water vapor generated from food is discharged outside the machine.
- the humidity sensor 92 measures the humidity of this air. When the measured value of humidity becomes equal to or higher than the predetermined value, the control device 90 determines that the food F has been sufficiently heated and water vapor has been ejected, that is, cooking has been completed, and stops high-frequency heating.
- the damper 79 shields the opening 121 from the inside of the exhaust path 78 when it is moved to a position where the inflow of water vapor to the humidity sensor 92 side of the exhaust path 78 is released. For this reason, it is possible to avoid a situation in which the measurement error of the humidity sensor 92 increases due to dilution of water vapor by air that has entered through the opening 121 or leakage of water vapor from the opening 121 to the outside. Touch with S. [0100] As described above, the food F is placed in the heating chamber 20 in a state of being placed on the food tray 100. At this time, which tray receiver supports the food tray 100 depends on the cooking menu.
- the food tray 100 When cooking with superheated steam is selected, the food tray 100 is to be supported by the second tray receiver 102, and a message to that effect is displayed on the display unit 14. Cooking with hot air is possible even when the food tray 100 is supported by any of the first tray receiver 101, the second tray receiver 102, and the third tray receiver 103. In the case of cooking with hot air, the food tray 100 can be supported one by one on both the first tray receiver 101 and the third tray receiver 103, and the preparation can be performed in two stages. When two-stage cooking is selected, the display unit 14 displays that the first tray receiver 101 and the third tray receiver 103 should be used.
- the food support net 110 When the food tray 100 is supported by the second tray receiver 102, the food support net 110 is placed on the food tray 100, and the food F is floated and supported from the surface of the food tray. Even in the food tray 100 supported by the first tray receiver 101 or the third tray receiver 103, the food support net 110 exhibits its effect. However, for the food tray 100 supported by the second tray receiver 102, the side heat medium flow ejected obliquely downward from the side heat medium supply port 47 is circulated under the food F. At least the use of the food support net 110 in this case is almost essential.
- the humidity sensor 92 disposed on the inner wall of the exhaust path 78 is used for cooking finish determination during high-frequency heating cooking. At this time, condensed water is generated inside the exhaust passage 78. .
- the damper 79 opens and a large amount of water vapor flows into the exhaust passage 78, resulting in condensed water.
- the condensed water flows down to the bottom of the exhaust passage 78.
- Humidity sensor 92 cannot be measured if condensed water accumulates enough to get wet.
- the condensed water flowing down to the bottom of the exhaust path 78 is evacuated to the infiltration evacuation part 125 and wets the humidity sensor 92. Does not accumulate under humidity sensor 92. Therefore, humidity cannot be measured.
- a drainage port 126 is provided in the inundation retreat unit 125. As a result, the condensed water is drained immediately, preventing the humidity sensor 92 from getting wet. Both the water flowing in from the exhaust port 124 and the drain port 126 are drained, and the humidity sensor 92 is not approached.
- the humidity sensor 92 is located on the windward side in the exhaust direction with respect to the inundation retreat unit 125. For this reason, even if the condensed water is pushed toward the humidity sensor 92, it is pushed back by the exhaust pressure, and the humidity sensor 92 can be prevented from getting wet.
- the exhaust path 78 is always open to the outside air through the opening 121. Therefore, except when the water vapor is flowing, even if dew condensation occurs on the humidity sensor 92, it can be easily dried, and accurate humidity measurement can be performed.
- the explanation is based on 11.
- the exhaust temperature lowering unit 3 is placed on the top surface of the cooker body 2, and the main elements are housed in a casing 150 made of synthetic resin.
- the casing 150 has a flat box shape, but the front end is not rectangular but the front end is slightly left and right (see Fig. 8).
- the lower surface of the casing 150 is provided with elastic legs 151 made of rubber or soft synthetic resin at appropriate positions so that the vibration of the exhaust cooling unit 3 is not transmitted to the cabinet 10, and the exhaust cooling unit 3 is slippery because it is easy. N / A!
- a duct 152 extending in the front-rear direction is formed (see FIGS. 5 and 9).
- the rear end of the duct 152 is a suction port 153, and the front end is a blowout port 154.
- a throat portion 155 with a reduced flow path area is formed in the middle of the duct 152.
- the duct 152 is branched ducts 152L and 152R in which the downstream portion from the throat portion 155 is divided into two.
- the 52Rs extend obliquely away from each other, and an air outlet 154 is formed at the end thereof.
- the duct 152 is also provided on the left side inside the casing 150 up to the throat portion 155 because the exhaust port 124 is arranged on the left side.
- a nozzle 156 is arranged so as to be coaxial with the throat section 155.
- the nozzle 156 is for blowing the wind from the blower 157 (see FIG. 9) disposed outside the duct 152 into the throat portion 155 toward the outlet 154.
- the air blower 157 has the same structure as the air blower 32, and a centrifugal fan and a fan motor 158 (see FIG. 12) for rotating the centrifugal fan are housed in a fan casing.
- a sirocco fan is used as the centrifugal fan, and a DC motor capable of high-speed rotation is used as the fan motor 158.
- the suction part of the blower 157 is provided on the lower surface of the fan casing.
- the cooker body 2 and the exhaust temperature lowering unit 3 are connected by a connector (not shown), and power supply and control are performed from the cooker body 2 to the exhaust temperature lowering unit 3.
- the fan motor 158 is controlled by the control device 90.
- a drooping piece 160 is formed at a position corresponding to the exhaust port 124 at the rear end of the casing 150 (see FIGS. 6 and 7).
- the drooping piece 160 has a positioning projection 161 in the shape of the letter “E” lying on its front surface.
- the end cap 122 also has a positioning projection 129 on the rear surface (see FIG. 6).
- the exhaust cooling / warming unit 3 When the exhaust cooling / warming unit 3 is placed on the cooker body 2 so that the positioning protrusion 161 is engaged with the positioning protrusion 129, a force S that causes the suction port 153 to cover the exhaust port 124 is obtained.
- the suction port 153 is not tightly joined to the exhaust port 124. Since the depth dimension of the suction port 153 is larger than the depth dimension of the exhaust port 124, the rear portion of the suction port 153 protrudes from the exhaust port 124, and forms a gap 162 (see FIG. 9). This gap 162 serves as an outside air intake.
- the exhaust port 124 extends in the front-rear direction only by the wind direction plate extending in the left-right direction. It can be seen that there is a wind direction board that exists. There are several wind direction plates that extend in the front-rear direction, and they are arranged at regular intervals in the left-right direction.
- the top surface of the casing 150 is a detachable top plate.
- the top plate is divided into a front top plate 163 and a rear top plate 164 (see FIG. 8), both of which are attached to the casing 150 by a fitting method using the elasticity of synthetic resin.
- the dividing line of the front top plate 163 and the rear top plate 164 is indicated by a two-dot chain line.
- the front top panel 163 and the rear top panel 164 are the top surface of the duct 152. If the front top panel 163 or the rear top panel 164 is removed, the inside of the main body of the duct 152 (the part excluding the top panel) Is exposed.
- the internal pressure of the duct 152 becomes a positive pressure downstream of the throat portion 155. Therefore, in the section from the throat section 155 to the outlet 154, steam is likely to leak from the joint between the top plate and the duct body. Therefore, a steam leakage prevention means is installed at the joint between the top plate and the duct body in the section.
- the complicated and intricate rib structure shown in Fig. 10 constitutes the steam leakage preventing means. That is, the side wall 152a of the duct body and the upper end of the outer wall 150a of the casing 150 are connected by the horizontal upper surface wall 169. Two ribs 169a and 169b protrude upward from the upper surface of the upper surface wall 169. The rib 169a extends parallel to the outer wall 150a, and the rib 169b extends parallel to the side wall 152a. From the front top plate 163 side, the rib 163a first hangs down from the outer edge, and on the inner side, the rib 163b hangs down from a position directly above the side wall 152a.
- the rib 163a constitutes the outer wall of the casing 150 together with the outer wall 150a
- the rib 163b constitutes the inner wall IJ wall of the duct wall 152 together with the side wall 152a. It is sandwiched between zips, 169a, 169bttU7, 163a, 163b.
- the steam leakage preventing means as described above is also provided on the right edge of the front top plate 163. Further, the rear top plate 164 is also provided at a location corresponding to the “section from the throat section 155 to the outlet 154”.
- the wind direction adjusting device 165 of the air outlet 154 is attached to the front top plate 163.
- the wind direction adjustment device 165 is of the type normally used at the air outlet of an air conditioner, and consists of a combination of a wind direction plate that changes the wind direction in the vertical direction and a wind direction plate that changes the wind direction in the left and right direction. Both wind direction plates are variable in angle, and the wind direction can be freely adjusted up, down, left and right.
- the wind direction adjusting device 165 is also taken out together.
- an electrical component isolation chamber 166 is defined (see FIG. 11).
- electrical components of the exhaust temperature lowering unit 3 such as a control board of the blower 157, are accommodated.
- the lid 167 of the isolation chamber 166 is also attached to the casing 150 by a fitting method using the elasticity of synthetic resin, like the top plate.
- the bottom surface is lowered toward the suction port 153 to form a drainage channel to the exhaust port 124.
- the section from the throat section 155 to the outlet 154 is lowered toward the outlet 154.
- a water reservoir recess 168 (see FIG. 5) is formed at the lowest position.
- the controller 90 drives the fan motor 158. Then, wind blows out from the nozzle 156, and air is sucked in from the suction port 153 by the ejector action in the slot portion 155. The sucked air flows into the branch ducts 152L and 152R, and the outlet 154 force at each end is also blown out. Note that high-temperature gas is not exhausted from the exhaust port 124 immediately after the start of cooking, so an appropriate time lag may be provided from the start of cooking to the start of the blower 157.
- High-temperature gas discharged from the exhaust port 124 during cooking that is, in the hot-air cooking mode or steam cooking mode, the high-temperature heat medium flowing out from the leakage path 77, or the damper 79 opened and flowed into the exhaust path 78
- High-temperature heat medium or water vapor generated from ingredients during the finishing process in high-frequency cooking mode is sucked into the duct 152 from the suction port 153 Be turned.
- the suction port 153 sucks the outside air through the gap 162, and the gas from the exhaust port 124 is mixed with the outside air and the temperature decreases.
- the exhaust vapor contained in the gas is diluted, making it difficult to wet the wall even if it flows toward the wall.
- the diluted gas is discharged from the outlet 154 in the front direction of the heating cooker 1 (or depending on how the wind direction adjusting device 165 is adjusted). Therefore, even if the heating cooker 1 is placed in a crevice space in the kitchen, such as under a hanging cupboard or between a wall and a refrigerator, water vapor does not accumulate in the crevice space. As a result, it is possible to prevent the wall surface of the gap space from becoming hot or causing condensation on the wall surface.
- the outside air intake port is a gap 162 formed between the suction port 153 and the exhaust port 124. Therefore, it is possible to simplify the configuration that does not require a separate outside air intake. Further, even if the exhaust port 124 is placed near the wall surface, the outside air to be sucked flows along the wall surface, so that dew condensation does not occur on the wall surface due to exhaust.
- the duct 152 downstream of the throat section 155 is divided into two branches to form branch ducts 152L and 152R.
- the branch ducts 152L, 152R extend away from each other and have a blower outlet 154 formed at the end thereof, so that the blower outlets 154 should be provided at two locations on the left and right sides, avoiding the center of the cooker body 2. become. Therefore, even if the user stands in front of the heating cooker 1 and looks into the cooking state from the see-through part of the door 11, the user is not exhausted and the user does not feel uncomfortable. In addition, since the exhaust does not hit the handle 12, the surface of the handle 12 gets wet due to condensation, and the user is less likely to get dirty with oil smoke.
- the exhaust temperature lowering unit 3 If the exhaust temperature lowering unit 3 is used for a long period of time, the inside of the duct 152 becomes dirty with oil smoke or the like. At that time, the front top plate 163 and the rear top plate 164 are removed to expose the inside of the duct 152 and perform cleaning. If the front top plate 153 is removed, the wind direction adjusting device 165 also comes out, so that it can be cleaned at the same time.
- the control board of the blower 157 is housed in the isolation chamber 166 in isolation. For this reason, power such as heat medium, water vapor, and oil smoke can also protect the control board.
- the isolation chamber 166 may be communicated with the suction portion of the blower 157, and an air intake portion may be provided in part of the lid 167. In this way, the control board can be air-cooled.
- a partition wall or the like is provided as appropriate so that the heat medium and water vapor do not enter from the air intake section.
- the exhaust temperature lowering unit 3 is used in common for the cooker body 2 of different models.
- FIG. 13 is a horizontal sectional view of the exhaust cooling / cooling unit similar to FIG. 9, and FIGS. 14 and 15 are perspective views of the adapter as seen from different angles.
- the exhaust temperature lowering unit 3 is combined with the controller main body 2 having an exhaust port 124 with a narrow width in the left-right direction.
- a large gap is generated between the left end of the exhaust port 124 and the left end of the suction port 153, and the suction force exerted on the exhaust port 124 is weakened although the outside air is sucked in well.
- an adapter 170 having a shape as shown in FIGS. 14 and 15 is fitted between the left end of the exhaust port 124 and the left end of the suction port 153 to close the gap. Accordingly, excessive outside air suction can be suppressed and a predetermined suction force can be exerted on the exhaust port 124. If several types of adapters 170 are prepared, a single exhaust cooling / cooling unit 3 can be adapted to various types of cooker main bodies 2.
- the present invention is applicable to all cooking devices that generate exhaust steam.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cookers (AREA)
- Electric Ovens (AREA)
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/513,302 US20100064902A1 (en) | 2006-11-02 | 2007-10-16 | Device for diluting discharged steam and cooker with the same |
| EP07829847.8A EP2083223A4 (en) | 2006-11-02 | 2007-10-16 | Device for diluting discharged vapor and cooker with the same |
| CN2007800406916A CN101535722B (zh) | 2006-11-02 | 2007-10-16 | 排气蒸汽稀释装置以及具有该装置的加热烹调器 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006298454A JP4311688B2 (ja) | 2006-11-02 | 2006-11-02 | 排気蒸気希釈装置及びこれを備えた加熱調理器 |
| JP2006-298454 | 2006-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008053699A1 true WO2008053699A1 (en) | 2008-05-08 |
Family
ID=39344043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2007/070113 Ceased WO2008053699A1 (en) | 2006-11-02 | 2007-10-16 | Device for diluting discharged vapor and cooker with the same |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20100064902A1 (ja) |
| EP (1) | EP2083223A4 (ja) |
| JP (1) | JP4311688B2 (ja) |
| CN (1) | CN101535722B (ja) |
| RU (1) | RU2422731C2 (ja) |
| WO (1) | WO2008053699A1 (ja) |
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| CN113081835A (zh) * | 2021-04-13 | 2021-07-09 | 成都中医药大学附属医院 | 一种膏药熬制装置 |
| US20220404035A1 (en) * | 2012-04-11 | 2022-12-22 | Electrolux Home Products Corporation N. V. | Oven for baking food products |
| CN115803568A (zh) * | 2020-08-28 | 2023-03-14 | 松下知识产权经营株式会社 | 加热烹调器 |
| EP4411252A1 (de) | 2023-02-02 | 2024-08-07 | Miele & Cie. KG | Gareinrichtung, gareinrichtungssystem und verfahren zum betreiben |
| BE1031325B1 (de) * | 2023-02-03 | 2024-09-16 | Miele & Cie | Gareinrichtung, Möbelsystem, Gareinrichtungssystem und Verfahren zum Betreiben |
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| See also references of EP2083223A4 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009275930A (ja) * | 2008-05-12 | 2009-11-26 | Sharp Corp | 加熱調理器 |
| US20220404035A1 (en) * | 2012-04-11 | 2022-12-22 | Electrolux Home Products Corporation N. V. | Oven for baking food products |
| CN115803568A (zh) * | 2020-08-28 | 2023-03-14 | 松下知识产权经营株式会社 | 加热烹调器 |
| CN113081835A (zh) * | 2021-04-13 | 2021-07-09 | 成都中医药大学附属医院 | 一种膏药熬制装置 |
| CN113081835B (zh) * | 2021-04-13 | 2022-06-03 | 成都中医药大学附属医院 | 一种膏药熬制装置 |
| EP4411252A1 (de) | 2023-02-02 | 2024-08-07 | Miele & Cie. KG | Gareinrichtung, gareinrichtungssystem und verfahren zum betreiben |
| BE1031325B1 (de) * | 2023-02-03 | 2024-09-16 | Miele & Cie | Gareinrichtung, Möbelsystem, Gareinrichtungssystem und Verfahren zum Betreiben |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2009120676A (ru) | 2010-12-10 |
| EP2083223A1 (en) | 2009-07-29 |
| JP2008116094A (ja) | 2008-05-22 |
| CN101535722B (zh) | 2011-08-03 |
| JP4311688B2 (ja) | 2009-08-12 |
| EP2083223A4 (en) | 2017-10-11 |
| US20100064902A1 (en) | 2010-03-18 |
| CN101535722A (zh) | 2009-09-16 |
| RU2422731C2 (ru) | 2011-06-27 |
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