CN1969723A - Steam cooking apparatus - Google Patents

Steam cooking apparatus Download PDF

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Publication number
CN1969723A
CN1969723A CNA2006101424406A CN200610142440A CN1969723A CN 1969723 A CN1969723 A CN 1969723A CN A2006101424406 A CNA2006101424406 A CN A2006101424406A CN 200610142440 A CN200610142440 A CN 200610142440A CN 1969723 A CN1969723 A CN 1969723A
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CN
China
Prior art keywords
steam
steam generation
chamber
water
generation container
Prior art date
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Pending
Application number
CNA2006101424406A
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Chinese (zh)
Inventor
孙钟哲
白相勋
权淳奇
李性浩
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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Filing date
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Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of CN1969723A publication Critical patent/CN1969723A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00Stoves or ranges heated by electric energy
    • F24C7/06Arrangement or mounting of electric heating elements
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00Ohmic-resistance heating
    • H05B3/20Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00Cooking-vessels
    • A47J27/04Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
    • A47J2027/043Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels for cooking food in steam
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/004Heaters using a particular layout for the resistive material or resistive elements using zigzag layout

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)

Abstract

The steam cooking apparatus includes a cooking compartment and a steam generating unit disposed at the outside of the cooking compartment and adapted to generate steam to be supplied into the cooking compartment. The steam generating unit includes a steam generating container to receive water therein, the steam generating container having a partitioned steam generating space, and a plate-shaped heater to heat the water received in the steam generating container. The plate-shaped heater includes a plurality of heating elements having different outputs from one another, thereby having the effect of enabling rapid and proper supply of steam required to cook different foods. The steam generating container is provided with an intercepting member, which divides the steam generating container into a water level sensing chamber and a steam generating chamber. The intercepting member prevents fluctuation of water level between the steam generating chamber and the water level sensing chamber.

Description

Steam cooking apparatus
Technical field
The present invention relates to steam cooking apparatus, relate in particular to steam cooking apparatus with the steam generation unit that uses plate shape heater.
Background technology
Usually, the object lesson of traditional food cooking method comprises by directly applying heat to food cooks the method that is contained in the food in gas burner or the electric oven, the method that heats the next indirect cooking food of vapor vessel that accommodates food, and the method for using the high frequency waves cooking food of micro-wave oven.
When utilizing the mode cooking food of gas burner or the direct heat food of electric oven, because food contacts the problem that the food oxidation can occur with airborne oxygen, this causes taste of food to degenerate.When utilizing the vapor vessel cooking food, food contains excessive moisture, has reduced the distinctive flavour of food.Equally, when using microwave oven cooking food, high frequency waves are irradiated food equably, causes the local excessive culinary art of food or owes culinary art.
In order to solve the problems referred to above of conventional culinary method, developed by coming the cooker of cooking food, and announced many technology about the cooker that uses superheated steam to the food supply superheated steam.Have been found that, when using the cooker cooking food that adopts superheated steam, hyperthermia and superheating steam directly is sent to the whole surface of food, and this has the food of preventing and excessively cooks or owe culinary art, keeps appropriate amount moisture in all foodstuffs so that guarantee the good taste of food.Use the example of the cooker of superheated steam to be disclosed among the Japanese Patent Laid-Open Publication No.2005-0061816.
The steam cooking apparatus that discloses in above-mentioned Japanese Patent Laid-Open Publication No.2005-0061816 comprises water tank, steam generation unit, steam heater and air-blast device, this device is used to culinary art chamber supply superheated steam, to utilize heat cooking food contained in the superheated steam.Disclosed steam generation unit comprises the annular outer cover heater, and it is configured to the outer surface around jar, with the water generates steam by storing in the heating tank.Particularly, the generation type of shell heater is: electrically-heated coil is inserted in the metal protection pipe, and add magnesium oxide powder as insulating powder in the metal protection pipe.The benefit of shell heater is that it can easily be processed to different shape, and has the high thermal efficiency.
Yet need there be the water of scheduled volume the steam generation unit with above-mentioned shell heater in jar.Under the situation of the shell heater that discloses in above-mentioned Japanese Patent Laid-Open Publication, it is configured to around described jar, thereby needs the scheduled time to be stored in the water generates steam in the jar by heating.Therefore, disclosed shell heater is difficult to instantaneously producing steam.
In addition, because the shell heater has single output quantity, the generation speed and the generating capacity of steam can not be controlled respectively.
Other examples of the cooker of use superheated steam are disclosed in Japanese Patent Laid-Open Publication No.2004-0205130 and 2004-0162936.In the cooker of disclosed traditional use superheated steam, if the water that is stored in the steam generation container of steam raising plant is used up, so new water need be supplied to steam generation container from water tank.Therefore, need add water in order to notify the user, the conventional culinary device must have the condensate tank of dehumidifier of the water level that is used for detecting the water that steam generation container holds.The exemplary of condensate tank of dehumidifier is the level sensor that is used to detect the floating thing position, and described floating thing is placed in the steam generation container, is used for moving up and down according to SEA LEVEL VARIATION.
Yet in above-mentioned superheated steam cooker, the water in being contained in steam generation container is heated by heater and when boiling, water level shows undue fluctuation, causes the fluctuation of floating thing water level.Therefore, produce wrong detection signal, can not detect the water level that is contained in the water in the steam generation container exactly because the floating thing water-level fluctuation causes level sensor.
Summary of the invention
The present invention seeks to address the above problem.One aspect of the present invention provides the steam cooking apparatus with steam generation unit, and it can produce steam apace, and the generation speed and the generating capacity of control steam.
Another aspect of the present invention provides the steam cooking apparatus of the structure with accurate detection of stored water yield in the steam generation unit.
According to an aspect, exemplary embodiments of the present invention provides a kind of steam cooking apparatus, what comprise the culinary art chamber and be located at the culinary art outside is used for producing the steam generation unit that will be infeeded the steam of culinary art in the chamber, wherein the steam generation unit comprises the steam generation container that is used for holding therein water, steam generation container has the steam generation space that is separated, and the plate shape heater that is used for heating the water that is contained in steam generation container.
Plate shape heater comprises a plurality of heating element heaters.
A plurality of heating element heaters have different power output mutually.
A plurality of heating element heaters can be independently operated.
Plate shape heater also can comprise single power common lead-out terminal and a plurality of power input end.
The steam generation unit also can comprise the condensate tank of dehumidifier that is used for detecting the steam generation container middle water level.
Steam generation container can have water level detecting chamber of being furnished with condensate tank of dehumidifier and the steam generating chamber that is provided with plate shape heater, and steam generation container can comprise the interception member, with water level detecting chamber and steam generating chamber separately.
The interception member can have the end that separates with steam generation container, with the intercommunication of the water between guaranteed water level sensing chamber and the steam generating chamber.
Condensate tank of dehumidifier can comprise be located in the steam generation container, be used for the floating thing that moves up and down according to SEA LEVEL VARIATION; Thereby and the level sensor that detects floating thing position sensed water level.
The interception member can be provided with the intercommunicating pore as air duct, is in uniform pressure mutually to keep water level detecting chamber and steam generating chamber.
Level sensor can comprise the block piece that prevents that floating thing and level sensor from separating.
Partly proposed during other aspect of the present invention and/or advantage will be described below, part will be apparent from describe, or arrive by practice knowledge of the present invention.
Description of drawings
These of exemplary embodiments of the present invention and/or aspect and advantage will be by the reference accompanying drawing the following description of embodiment become and understand and be more readily understood, wherein:
Fig. 1 is the perspective view that shows the structure of the steam cooking apparatus of exemplary embodiments according to the present invention;
Fig. 2 is the outward appearance front view of steam cooking apparatus among Fig. 1;
Fig. 3 is the cross sectional view of steam cooking apparatus among Fig. 1;
Fig. 4 is the decomposition diagram of the structure of the steam generation unit that steam cooking apparatus contains among demonstration Fig. 1;
Fig. 5 is the perspective view that shows the structure of the steam cooking apparatus of another exemplary embodiments according to the present invention;
Fig. 6 is the decomposition diagram that shows the structure of steam generation unit among Fig. 5; And
Fig. 7 is the sectional view along Fig. 5 center line A-A.
The specific embodiment
To describe exemplary embodiments of the present invention in detail now, its example will be equipped with description of drawings, and wherein similarly numeral is indicated similar elements in the text.By with reference to the accompanying drawings, embodiment is described hereinafter to explain the present invention.
Fig. 1 is the perspective view that shows the structure of the steam cooking apparatus of exemplary embodiments according to the present invention.Fig. 2 is the outward appearance front view of steam cooking apparatus among Fig. 1.Fig. 3 is the cross sectional view of steam cooking apparatus among Fig. 1.Fig. 4 is the decomposition diagram of the structure of the steam generation unit that steam cooking apparatus contains among demonstration Fig. 1.
The steam cooking apparatus of exemplary embodiments according to the present invention, as depicted in figs. 1 and 2, comprise the shell 1 that forms device appearance, be defined in the shell 1 in shell 1, to have the culinary art chamber 10 of predetermined space, open and close the door 2 of the unlimited front surface of culinary art chamber 10, and be installed in the control panel 3 on the culinary art chamber 10.Steam cooking apparatus of the present invention also comprises water feeding unit 20, steam generation unit 30 and a pair of superheated steam feeding unit 40, and they are set in shell 1 and the space of culinary art between the chamber 10, to provide steam in culinary art chamber 10.
Culinary art chamber 10 is made up of top board 11, base plate 12, relative side plate 13 and back plate 14, and has the inner space of the required predetermined of cooking food.Insulating component (not shown) sealing culinary art chamber 10 is to prevent to cook heat leakage (see figure 2) in the chamber 10.Equally, the cross-flow fan 5 that is used to produce the solenoid tube 4 of microwave and is used to cool off solenoid tube 4, steam generation unit 30, other electron component etc. are arranged on the outer surface of the top board 11 of culinary art chamber 10.
A plurality of minor diameters ingate 15 is arranged at each side plate 13 center, and a plurality of minor diameter outlet openings 16 are arranged at around the ingate 15, more particularly, and along the periphery of each side plate 13.A plurality of outlet openings 16 can be arranged in front side, rear side, upside and the downside of a plurality of ingates 15 symmetrically.Utilize the configuration of the side plate 13 of culinary art chamber 10, the steam in the culinary art chamber 10 is introduced into superheated steam feeding unit 40 by ingate 15, returns culinary art chamber 10 once more by outlet opening 16 after being superheated to high temperature.
Water feeding unit 20 is installed in the forward position that is positioned at top board 11 on the outer surface of top board 11.Water feeding unit 20 comprises water cassette for supplying 21, the water supply container 22 that is inserted into or takes out water cassette for supplying 21 that can in water cassette for supplying 21, slide, connect the water supply pipe 23 of water supply container 22, and be located at the pump 24 that is used for water is supplied into steam generation unit 30 on the water supply pipe 23 to steam generation unit 30.
In having the water feeding unit 20 of said structure, if water is received in water supply container 22, then water is taken out by pump 24 pumps, to be supplied in the steam generation unit 30 by water supply pipe 23.
As shown in figs. 1 and 4, steam generation unit 30 has approximate box-like shape, and is installed in the sidepiece that is positioned at top board 11 on the outer surface of top board 11.Steam generation unit 30 comprises steam generation container 31 and plate shape heater 50, described steam generation container 31 connects water supply pipe 23, be used to hold the water of introducing by water supply pipe 23, described plate shape heater 50 forms the diapire of steam generation container 31, be suitable for heating the water that is contained in the steam generation container 31, to produce steam.
Steam generation container 31 is bored a hole on its roof form connecting the water supply orifice 32 of water supply pipe 23, and in its antetheca overpunching with the steam that is formed for supplying steam generation container 31 and produces to the steam (vapor) outlet 33 of cooking chamber 10.Steam supply pipe 34 is connected to steam (vapor) outlet 33, is communicated with the steam inlet 17 with culinary art chamber 10.Under this structure, if steam produces in steam generation container 31, steam is supplied into culinary art chamber 10 by steam supply pipe 34 so.Steam generation container 31 also in the underpunch of its sidewall to form osculum 35 so that drainpipe 36 is connected to osculum 35, finishes the back with cooking operation and discharge the water that remains in steam generation container 31 at steam cooking apparatus.
As shown in Figure 3, superheated steam feeding unit 40 is located at respectively on the outer surface of two side plates 13 of cooking chamber 10.Each superheated steam feeding unit 40 comprises circulating fan 41, and the inner air that is used for forced circulation culinary art chamber 10 enters superheated steam feeding unit 40 by ingate 15, and enters culinary art chamber 10 again by outlet opening 16; Cross hot heater 42, be used for the heat cycles air, become superheated steam with the steam that will contain in the air; Be connected to the casing 43 of corresponding side plate 13, be used to encase circulating fan 41 and cross hot heater 42, and be installed in the motor 44 that is used for operation cycle fan 41 on casing 43 outer surfaces.In this structure, overheated steam pipe 45 is defined between side plate 13 outer surfaces and the casing 43, and circulating fan 41 and mistake hot heater 42 are arranged in overheated steam pipe 45.The inner air of culinary art chamber 10 is introduced into overheated steam pipe 45 by ingate 15, by after hot heater 42 is changed into superheated steam excessively, returns culinary art chamber 10 by outlet opening 16 again.
Plate shape heater 50 has formed the diapire of steam generation container 31, and described plate shape heater 50 is comprised in the steam generation unit 30 of steam cooking apparatus of the present invention.Plate shape heater 50 is provided with resistor, and they are designed to ladder-shaped, to obtain maximum electrical heating zone.
Plate shape heater 50 is to utilize printed circuit board (PCB) (PCB) technology by the heater of pattern printed resistor on insulating substrate with the evolution of heat of permission substrate self.Plate shape heater 50 have can Fast Heating advantage.In steam cooking apparatus of the present invention, the plate shape heater 50 special diapires that form steam generation container 31.Therefore, even when only having low amounts of water to be present in the steam generation container 31, also be possible by plate shape heater 50 instantaneous generation steam.
The plate shape heater 50 that forms steam generation container 31 diapires comprises insulating substrate 51, a plurality of heating element heaters 52 and 53, be used for when being powered, the resistor of utilization pattern printing on insulating substrate 51 surfaces produces predetermined amount of heat, and the electric power input/ output terminal 54,55 and 56 that is formed on pattern printed resistor end, be used for to heating element heater 52 and 53 power supplies.
Insulating substrate 51 adopts approximate rectangular sheet form, and has and the corresponding size of steam generation container 31 bottom sections.
Heating element heater 52 and 53 is formed by the pattern printed resistor.Based on the proportional fact of length of the intrinsic resistance value and the resistor of resistance and resistor, resistor is printed on the insulating substrate 51 by pattern.Therefore, even when stable electric power is supplied, heating element heater 52 and 53 can obtain multiple required power output by the resistance that changes heating resistor.
Rely on the shape of the pattern printing of resistor, two or more heating element heaters 52 and 53 can be set up, but and these heating element heaters 52 and 53 independent operations.For convenience of description, in the present invention, suppose that heating element heater 52 and 53 comprises first heating element heater 52 and second heating element heater 53, they have different power output mutually.
Equally, though the power output of heating element heater 52 and 53 is when the size of considering the culinary art chamber, steam supply or conditions of similarity, can differently be determined, in exemplary embodiments of the present invention, the peak power output of supposing first heating element heater 52 is 600W, and the peak power output of second heating element heater 53 is 400W.
First heating element heater 52 is to be formed by the pattern printed resistor with approximate ladder-shaped.One end of resistor is connected to first power input end 54, and the other end of resistor is connected to shared power output end 55.
Second heating element heater 53 has the shape identical with the shape approximation of first heating element heater 52, and contiguous first heating element heater 52 in position.An end that forms the resistor of second heating element heater 53 is connected to second power input end 56, and the other end of resistor is connected to shared power output end 55.
Though heating element heater 52 and 53 can have power output end respectively, in the present invention, only single power common lead-out terminal 55 is used, with the minimizing on the realization power output end quantum count and the simplified pattern of resistor.
Adopt said structure, if first power input end 54 and power common lead-out terminal 55 are interconnected on together, first heating element heater 52 is activated so.In this case, plate shape heater 50 is used for being contained in the power output heating of 400W the water of steam generation container 31.If second power input end 56 and power common lead-out terminal 55 are interconnected on together, second heating element heater 53 is activated so.In this case, the power output of plate shape heater 50 output 600W.Equally, if first and second power input ends 54 with 56 both be connected power common lead-out terminal 55 simultaneously, plate shape heater 50 can be contained in the water in the steam generation container 31 with the power output heating of 1000W so, thereby produces the quantity of steam that increases fast.
At least one temperature sensor 57 can be arranged on the center of insulating substrate 51, or the center of each heating element heater 52 or 53, with the temperature of measuring plate shape heater 50.
Here, will be described in conjunction with the accompanying drawings with the corresponding to operation of the present invention with steam cooking apparatus of said structure.
If the user puts into culinary art chamber 10 with food, and by operation control panel 2 input culinary art instructions, pump 24 is activated so, water is supplied with the steam generation container 31 of steam generation unit 30 from water feeding unit 20.
In order to produce steam according to difference culinary art instruction, a plurality of heating element heaters 52 and 53 are operated simultaneously or are operated separately and preestablished.For example, for the culinary art instruction with a large amount of steam fast cooking foods, first and second heating element heaters 52 and 53 are simultaneously operated, so that heat the water that is contained in the steam generation container 31 with the gross output of 1000W, thereby produce the quantity of steam that increases quickly.Medium speed's culinary art instruction is transfused to if desired, and then only second heating element heater 53 is operated, and the culinary art of low uniform velocity instruction is transfused to if desired, and then first heating element heater 52 is operated, thereby produces based on pre-conditioned steam.
Therefore, if culinary art instruction based on input, water is supplied into steam and produces in the container 31, and first heating element heater 52 of plate shape heater 50 and/or second heating element heater 53 are operated to have default power output so, and instruction produces predetermined quantity of steam thereby culinary art is imported in response.
In this case, if the water that does not have water to be supplied into steam generation container 31 or previous supply is all become steam, thereby do not have water to be present in the steam generation container 31, steam generation container 31 can stand the quick increase on the temperature so.The temperature that is located at the temperature sensor 57 detection steam generation container 31 on the plate shape heater 50 increases, and surpasses predetermined temperature if the temperature of plate shape heater 50 increases, and then blocks power supply.
The steam that utilizes the heating operation of plate shape heater 50 to produce in steam generation unit 30 is introduced into culinary art chamber 10 by steam supply pipe 34, according to the operation of the circulating fan 41 of superheated steam feeding unit 40, send into overheated steam pipe 45 by ingate 15 successively then.Therefore, steam is become the superheated steam with higher temperature by the circulating fan 41 that is located in the overheated steam pipe 45 with the operation of crossing hot heater 42.Then, superheated steam is infeeded culinary art chamber 10 by a plurality of outlet openings 16 that pass culinary art chamber 10 side plates 13.
According to said process, the operation that utilizes circulating fan 41 and cross hot heater 42 continuously changes culinary art chamber 10 inner airs and is superheated steam, and the forced circulation operation that the superheated steam that returns generation enters culinary art chamber 10 can be implemented.
After this, the culinary art if food is done, then a culinary art circulation finishes, and the water that remains in steam generation container 31 drains into the base plate 12 of cooking chamber 10 by drainpipe 36.
Now, consistent with another embodiment of the present invention steam cooking apparatus will be illustrated.The element identical with the above embodiment of the present invention will be indicated as identical reference number, and their detailed description will be omitted.
Fig. 5 is the perspective view of demonstration and the corresponding to steam cooking apparatus structure of another exemplary embodiments of the present invention.Fig. 6 is the decomposition diagram that shows steam generation cellular construction among Fig. 5.Fig. 7 is the sectional view along Fig. 5 center line A-A.
The steam generation unit consistent with another embodiment of the present invention, show as Fig. 5 and 6, comprise the steam generation unit 31 that is used for holding therein water that is installed on the culinary art chamber 10, be installed in being used on the steam generation unit 31 and be contained in water in the heating steam generation container 31 to produce the plate shape heater 80 of steam, and the condensate tank of dehumidifier 60 that is used for sensed water level, be used for water in steam generation container 31 when being used up, notify the user need add water.
Plate shape heater 80 is installed in steam generation container 31 bottoms, container 31 outsides, is contained in water in the steam generation container 31 with heating.Though similar with the above embodiment of the present invention, plate shape heater 80 can have a plurality of heating element heaters, in the present embodiment, plate shape heater 80 can contain single heating element heater, and can be installed in the outer lower face place of steam generation container 31.
Condensate tank of dehumidifier 60 as shown in Figure 6, comprises being located at floating thing 62 in the steam generation container 31 and that move up and down according to SEA LEVEL VARIATION, and the level sensor 61 that is used to detect floating thing 62 positions and then sensed water level.
Level sensor 61 has the rod shape of predetermined length, makes it be inserted in the detector patchhole 37 of steam generation container 31 tops formation, with spaced a predetermined distance from from the bottom of steam generation container 31.Floating thing 62 has the annular shape that open at the center.Therefore, floating thing 62 is inserted in around the level sensor 61, thereby around level sensor 61 peripheries the time, it is moving up and down.Week is provided with magnet to the floating thing 62 of annular shape within it.
Near the in the top position of level sensor 61 is provided with flange portion 61a in periphery.Flange portion 61a is constructed to be placed on steam generation container 31 external upper.Gum filler 63 is inserted between flange portion 61a lower surface and steam generation container 31 upper surfaces, to prevent steam leakage.
Near the level sensor 61 also position its lower end is provided with block piece 61b in periphery.Block piece 61b is used for allowing floating thing 62 to move up and down, and not with the danger of level sensor 61 accidental separation.Block piece 61b surface thereon is provided with contact-making switch 61c.Adopt this structure, if floating thing 62 moves down, and contact contact-making switch 61c, level sensor 61 carries the floating thing detection signal to the controller (not shown) so, to cause water to be supplied into steam generation container 31, the water level in steam generation container 31 arrives predetermined value.
Steam generation container 31 is provided with interception member 70 therein.Interception member 70 is used to the inside of steam generation container 31 is separated into water level detecting chamber 39, and condensate tank of dehumidifier 60 is arranged in water level detecting chamber 39 and steam generating chamber 38, and plate shape heater 80 is installed in the steam generating chamber 38.Water in being contained in steam generation container 31 is installed in plate shape heater 80 heating of steam generation container 31 lower external face and when boiling, and interception member 70 is used for preventing that the water-level fluctuation of the water that boils is transferred into the floating thing 62 of condensate tank of dehumidifier 60.Interception member 70 is placed, steam generation container 31 is divided into two zones, steam generating chamber 38 has the area the same with plate shape heater 80 like this, and the water level detecting chamber 39 that is used to hold condensate tank of dehumidifier 60 is defined at the remaining area of steam generation container 31.
Interception member 70 adopts the form of plate shape dividing plate.Plate shape interception member 70 has the upper surface of steam generation container of being connected to 31 and the upper end and relative side on opposing sidewalls surface, and the bottom that separates with steam generation container 31 bottom surfaces, to define opening 72.Therefore, if water is supplied into the steam generating chamber 38 of steam generation container 31, then the water that partly is supplied is introduced water level detecting chambers 39 by opening 72, thereby is stored in steam generating chamber 38 and the water level detecting chamber 39.
Interception member 70 has a plurality of intercommunicating pores 71 that pass its top.Intercommunicating pore 71 is as the air duct between water level detecting chamber 39 and the steam generating chamber 38, and both are in uniform pressure mutually thereby keep water level detecting chamber 39 and steam generating chamber 38, thereby both are in identical water level.This allows condensate tank of dehumidifier 60 to detect the water level of whole steam generation container 31 exactly.
Operation and function with steam cooking apparatus of said structure will be in conjunction with Fig. 5 and 7 explanations.
If the user puts into culinary art chamber 10 with food, and by operation control panel 3 input culinary art instructions, pump 24 is operated so, water is supplied with the steam generation container 31 of steam generation unit 30 from water feeding unit 20.The water that part is supplied is introduced into water level detecting chamber 39 by opening 72.Because the inside of steam generation container 31, by the intercommunicating pore 71 that passes interception member 70 tops, the pressure that is consistent is so water level detecting chamber 39 has identical water level mutually with steam generating chamber 38.
If the water level in the steam generation container 31 arrives predetermined value, then level sensor 61 detects moving upward of floating thing 62, and sends the signal (not shown) to controller.Therefore, under water supply valve controlled device closing state, the water that is contained in the steam generation container 31 is heated by plate shape heater 80, to produce steam.
In this case, owing to the water in the steam generating chamber 38 that is contained in steam generation container 31 is directly heated by plate shape heater 80, so steam generating chamber 38 when water is heated and boil, experiences great water-level fluctuation.Yet in the present invention, the water-level fluctuation that produces in the interception member 70 interception steam generating chamber 38 is not so there is water-level fluctuation to be transferred into water level detecting chamber 39.
Therefore, when water is boiled in steam generating chamber 38, the water-level fluctuation influence that water level detecting chamber 39 is not caused, and keep stable water level.Therefore, this has prevented floating thing 72 along with the water level of the water that boils moves up and down, and has prevented that condensate tank of dehumidifier 60 from producing the wrong detection signals.By this way, condensate tank of dehumidifier 60 of the present invention compared with prior art can be more stably sensed water level more accurately.
From foregoing description as seen, the invention provides a kind of steam cooking apparatus, wherein plate shape heater is installed on the steam generation unit, thereby realizes that steam produces faster.
The plate shape heater that is included in the steam cooking apparatus of the present invention has a plurality of heating element heaters, can realize multiple power output.Therefore, when needs were cooked multiple food, plate shape heater can be realized suitable steam supplying functional, offered every kind of quantity of steam that food is required.
In addition, according to the present invention, heating element heater has single power common lead-out terminal, thereby realizes the minimizing of lead-out terminal quantity.This also has the effect of simplifying the resistor pattern printing, causes the reduction of manufacturing cost.
In addition, the steam generation container consistent with the present invention is provided with the interception member, so that steam generation container inside is divided into water level detecting chamber and steam generating chamber.The interception member is used for preventing the water-level fluctuation in the water level detecting chamber, thus sensed water level more accurately.
Though embodiments of the invention are shown and have described, those skilled in the art will appreciate that the improvement that present embodiment is done does not break away from principle of the present invention and spirit, scope of the present invention is defined in claim and their equivalency range.

Claims (20)

1. steam cooking apparatus, comprise the culinary art chamber and be located at the culinary art outside be used for produce the steam generation unit that will be infeeded the steam in the culinary art chamber, wherein the steam generation unit comprises:
Be used for holding therein the steam generation container of water, steam generation container has the steam generation space that is separated, and
Be used for heating the plate shape heater of the water that is contained in steam generation container.
2. device according to claim 1 is characterized in that: described plate shape heater comprises a plurality of heating element heaters.
3. device according to claim 2 is characterized in that: described a plurality of heating element heaters have different power output mutually.
4. device according to claim 2 is characterized in that: described a plurality of heating element heaters are independently operated.
5. device according to claim 2 is characterized in that: described plate shape heater also comprises single power common lead-out terminal and a plurality of power input end.
6. device according to claim 1 is characterized in that: described steam generation unit also comprises and is used for detecting the condensate tank of dehumidifier that is contained in the water level in the steam generation container.
7. device according to claim 6 is characterized in that:
Steam generation container has water level detecting chamber that is provided with condensate tank of dehumidifier and the steam generating chamber that is provided with plate shape heater; And
Steam generation container comprises the interception member, so that water level detecting chamber and steam generating chamber are separated.
8. device according to claim 7 is characterized in that: the interception member has the end that separates with steam generation container, with the intercommunication of the water between guaranteed water level sensing chamber and the steam generating chamber.
9. device according to claim 6 is characterized in that, described condensate tank of dehumidifier comprises:
Be located in the steam generation container, be used for the floating thing that moves up and down according to SEA LEVEL VARIATION; And
Level sensor is used to detect the floating thing position, thus sensed water level.
10. device according to claim 7 is characterized in that: the interception member is provided with the intercommunicating pore as air duct, is in uniform pressure mutually to keep water level detecting chamber and steam generating chamber.
11. device according to claim 9 is characterized in that: described level sensor comprises the block piece that prevents that floating thing and level sensor from separating.
12. a steam generation device, its generation is used to cook the steam of chamber, comprising:
Be used for holding therein the steam generation container of water, described steam generation container has the steam generation space that is separated, and
The plate shape heater that adds hot water.
13. device according to claim 12 is characterized in that: described plate shape heater comprises a plurality of heating element heaters, and each heating element heater in described a plurality of heating element heaters is provided with resistor, and forms ladder-shaped.
14. device according to claim 13 is characterized in that: but described a plurality of heating element heater is an independent operation, and have different power output mutually.
15. device according to claim 13 is characterized in that: described plate shape heater also comprises single power common lead-out terminal and a plurality of power input end.
16. device according to claim 12 is characterized in that: also comprise the condensate tank of dehumidifier that is used for detecting the water level in the steam generation container.
17. device according to claim 16 is characterized in that:
Steam generation container comprises the interception member, steam generation container is divided into water level detecting chamber and steam generating chamber;
Described condensate tank of dehumidifier is arranged in the described water level detecting chamber; And
Described plate shape heater is set to contiguous described steam generating chamber.
18. device according to claim 17 is characterized in that: the end of described interception member and described steam generation container separate, to allow the intercommunication of the water between water level detecting chamber and the steam generating chamber.
19. device according to claim 17 is characterized in that, described condensate tank of dehumidifier comprises:
Be located in the water level detecting chamber, be used for the floating thing that moves up and down according to SEA LEVEL VARIATION; And
Detect the level sensor of floating thing position.
20. device according to claim 17 is characterized in that: described interception member comprises intercommunicating pore, is in uniform pressure to keep water level detecting chamber and steam generating chamber.
CNA2006101424406A 2005-11-24 2006-10-26 Steam cooking apparatus Pending CN1969723A (en)

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KR1020050113166A KR100820734B1 (en) 2005-11-24 2005-11-24 Steam cooking apparatus

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CN114680601A (en) * 2020-12-31 2022-07-01 广东美的厨房电器制造有限公司 Steam generator and cooking utensil

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