WO2023284849A1 - Steamer cooking apparatus - Google Patents
Steamer cooking apparatus Download PDFInfo
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- WO2023284849A1 WO2023284849A1 PCT/CN2022/105883 CN2022105883W WO2023284849A1 WO 2023284849 A1 WO2023284849 A1 WO 2023284849A1 CN 2022105883 W CN2022105883 W CN 2022105883W WO 2023284849 A1 WO2023284849 A1 WO 2023284849A1
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- steam
- cooking
- oxygen
- cavity
- working
- Prior art date
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- 238000010411 cooking Methods 0.000 title claims abstract description 344
- 239000001301 oxygen Substances 0.000 claims abstract description 96
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 96
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 94
- 239000007921 spray Substances 0.000 claims abstract description 4
- 238000010793 Steam injection (oil industry) Methods 0.000 claims description 82
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 4
- 238000006392 deoxygenation reaction Methods 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 235000013305 food Nutrition 0.000 abstract description 52
- 230000036541 health Effects 0.000 abstract description 11
- 238000005507 spraying Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 description 10
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- 239000007789 gas Substances 0.000 description 6
- 238000004088 simulation Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
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- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 235000013601 eggs Nutrition 0.000 description 3
- 238000010025 steaming Methods 0.000 description 3
- 230000032258 transport Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003635 deoxygenating effect Effects 0.000 description 1
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- 238000007417 hierarchical cluster analysis Methods 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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Images
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/24—Warming devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J36/00—Parts, details or accessories of cooking-vessels
- A47J36/32—Time-controlled igniting mechanisms or alarm devices
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/04—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels
- A47J2027/043—Cooking-vessels for cooking food in steam; Devices for extracting fruit juice by means of steam ; Vacuum cooking vessels for cooking food in steam
Definitions
- the present disclosure relates to the technical field of kitchen appliances, in particular to a steam cooking device.
- the present disclosure aims to solve at least one of the technical problems existing in the prior art. Therefore, the purpose of the present disclosure is to propose a steam cooking device, which can not only meet people's health needs for cooking food, but also has high cooking efficiency.
- a steam cooking device comprising: a box body including a cooking cavity, the cooking cavity has air holes; an oxygen exhaust device configured to discharge oxygen in the cooking cavity through the air holes; steam injection A device configured to inject steam into the cooking cavity; and a control device configured to control the steam injection device to start after the oxygen exhaust device finishes working.
- the oxygen in the cooking cavity can be exhausted as much as possible through the oxygen exhaust device first, so as to reduce the oxygen concentration in the cooking cavity, and then the high-speed steam injected by the steam injection device can Quickly surrounds and cooks food over heat. Since the oxygen concentration in the cooking chamber of the steam cooking device is low enough when cooking food, the harmful substances that may be produced by the reaction of oxygen and high-temperature food can be greatly reduced to meet people's health needs for cooking food.
- the steam is injected into the cooking cavity by spraying, so that the rapid heat exchange between the steam and the food can be realized, the cooking time of the food can be shortened, and thus the cooking efficiency can be improved.
- the box body further includes a pressure cavity, and the pressure cavity is separated from the cooking cavity by an orifice plate, and the orifice plate includes a A plurality of through holes communicating with the cavity;
- the steam cooking device also includes: a steam generating device configured to deliver steam into the pressure chamber and/or deliver steam to the steam injection device; and a steam discharge device configured In order to transport the steam in the cooking cavity to the steam injection device;
- the steam cooking equipment includes an oxygen exhausting working stage and a cooking working stage located after the oxygen exhausting working stage, in the oxygen exhausting working stage,
- the control device controls the opening of the steam generating device and controls the closing of the steam discharge device, so that the oxygen in the cooking cavity is discharged through the air holes, and, in the cooking phase, the control device controls
- the steam discharge device is turned on so that steam is sprayed into the cooking cavity through the steam injection device.
- the steam pressure in the pressure chamber is relatively high, it can enter into the cooking chamber with relatively low pressure through a plurality of through holes of the orifice plate, thereby exhausting as much oxygen in the cooking chamber as possible.
- the air hole is located at the lower part of the cooking cavity, and the pressure cavity is located above the cooking cavity, so that steam enters the cooking cavity from the pressure cavity .
- the gas density in the cooking cavity has a positive density gradient, which can minimize the mixing of steam and air, so as to discharge as much air as possible, that is, as much oxygen in the air as possible exhaust to minimize the reduction in oxygen concentration in the cooking chamber.
- the steam cooking device there are at least two steam injection devices, and the at least two steam injection devices are respectively arranged on two sides of the central area of the cooking cavity.
- the solution of this embodiment can make the steam around the food in the cooking cavity more uniform, thereby further improving the efficiency of heating the food.
- the steam injection device includes: a central delivery pipe and an injection structure arranged along the extension direction of the central delivery pipe, wherein the delivery end of the central delivery pipe is closed, Moreover, the lumen cross-sectional area of the central delivery tube decreases gradually toward the delivery end. In this way, the flow velocity of the steam sprayed from the downstream of the central delivery pipe can be weakened to a certain extent, so that the flow velocity of the steam sprayed from the steam injection device is relatively uniform.
- the injection structure may be designed to: include a plurality of nozzles arranged along the extension direction of the central delivery pipe; or, the injection structure is set on the central delivery pipe The tube wall of the tube and the slit extending along the extension direction of the central delivery tube.
- At least two of the steam injection devices are arranged on the top of the cooking cavity; or, at least two of the steam injection devices are arranged on the peripheral side of the cooking cavity.
- the steam cooking device there are at least two steam discharge devices, each of which is connected to one or more steam injection devices.
- the steam is delivered to the aforementioned at least two steam injection devices through at least two steam discharge devices, which can improve the recycling efficiency of the steam in the cooking cavity, keep the steam in the cooking cavity at a high flow rate, thereby shortening the food cooking time and improving the cooking time. Cooking efficiency.
- the steam cooking device further includes: a heating device, the steam provided between the steam discharge device, the steam injection device, and the steam discharge device and the steam injection device at least one of the delivery paths.
- the steam discharge device is a centrifugal fan
- the heating device is annular and surrounds the impeller of the centrifugal fan.
- the steam when the steam cooking equipment cooks food, the steam is heated by the heating device and then sprayed into the cooking cavity by the steam injection device, which can further increase the temperature of the steam in the cooking cavity, thereby further improving the cooking efficiency.
- the steam cooking device there are at least two steam inlets in the pressure chamber, and the steam generating device sends steam to the at least two steam inlets in the pressure chamber through a branch pipeline.
- the steam can be quickly and evenly filled in the pressure chamber, and the working efficiency of the steam cooking equipment can be improved.
- the time interval between the oxygen exhausting working phase and the cooking working phase is not less than zero.
- the time interval can be zero or close to zero, which can further reduce the cooking time of the food.
- the working duration of the steam cooking device in the oxygen-exhausting working stage is a first preset duration
- the working duration of the steam cooking device in the cooking working stage The duration is the second preset duration
- the steam cooking device further includes an oxygen concentration detection device configured to acquire the concentration of oxygen in the cooking cavity; the control device is further configured to respond to the concentration of oxygen in the cooking cavity is higher than the concentration threshold, controlling to turn on the oxygen exhausting working stage and closing the cooking working stage; Describe the cooking phases.
- the elapsed time of the oxygen exhausting working phase is determined by the actual concentration of oxygen in the cooking cavity. Therefore, the concentration of oxygen in the cooking cavity can be controlled more precisely, so as to achieve more sufficient oxygen exhausting.
- the control device is further configured to, in the cooking phase, control the steam generating device to be turned off, or control the working power of the steam generating device to be less than that in the cooking phase.
- the working power of the oxygen exhausting working stage Since the steam can be recycled through the steam discharge device during the cooking phase, and the concentration of steam in the cooking cavity is relatively high, the steam generating device can be turned off or the working power of the steam generating device can be appropriately reduced during the cooking phase. In order to reduce the energy consumption of the equipment.
- the steam cooking device includes a steam box, an integrated steam and oven, an integrated micro steamer or an integrated micro steam and oven.
- Fig. 1 shows a schematic structural view of a steam cooking device in the related art
- Fig. 2 shows a front view of a steam cooking device according to some exemplary embodiments of the present disclosure
- Fig. 3 shows a front view of a steam cooking device working in an oxygen exhausting working stage according to some exemplary embodiments of the present disclosure
- Fig. 4A shows a steam cooking device according to some exemplary embodiments of the present disclosure, a simulation diagram of the concentration distribution of steam at several different moments after entering the cooking cavity;
- Fig. 4B shows a simulation diagram of the concentration distribution of steam at several different moments after entering the cooking cavity according to a steam cooking device in the related art
- Fig. 5 shows a front view of a steam cooking device working in a cooking phase according to some exemplary embodiments of the present disclosure
- Fig. 6 shows a simulation nephogram of the steam velocity along the longitudinal section inside the cooking cavity when the steam cooking device is working in the cooking phase according to some exemplary embodiments of the present disclosure
- Fig. 7 shows a schematic perspective view of a cabinet of a steam cooking device according to some exemplary embodiments of the present disclosure
- Fig. 8 shows a perspective view of a cabinet, a steam injection device and a steam discharge device of a steam cooking device according to some exemplary embodiments of the present disclosure
- Fig. 9 shows a front view of a cabinet, a steam injection device and a steam discharge device of a steam cooking device according to some exemplary embodiments of the present disclosure
- Fig. 10 shows a perspective view of a steam injection device and a steam discharge device of a steam cooking device according to some exemplary embodiments of the present disclosure
- Fig. 11 shows a steam-type cooking device according to some exemplary embodiments of the present disclosure, and a simulated nephogram of the velocity of steam ejected from a steam injection device;
- Fig. 12 shows a perspective view of a steam injection device of a steam cooking device according to some exemplary embodiments of the present disclosure
- Fig. 13 shows a perspective view of a steam injection device of a steam cooking device according to some exemplary embodiments of the present disclosure
- Figure 14 shows a front view of a steam cooking device according to some exemplary embodiments of the present disclosure.
- Fig. 15 shows a front view of a steam cooking device according to some exemplary embodiments of the present disclosure.
- 212-cooking chamber 213-pressure chamber; 2130-steam inlet; 2120-air hole; 212a-left side wall; 212b-right side wall;
- 212c-back side wall 212d-bottom wall; 212e-top wall; 2301-center delivery tube; 2302-spray structure;
- 2404-air outlet 2405-heating device; 2302a-nozzle; 2302b-blade; 2302c-slit; 290-tray;
- a steam cooking device 100 in the related art has a water box 102 provided at the bottom of a cooking chamber 101 , and a heater 103 is provided in the water box 102 .
- the heater 103 heats the water in the water box 102 to convert it into high-temperature water vapor and diffuse in the cooking cavity 101 , thereby heating the food on the support 104 .
- the inventors of the present disclosure are also concerned that in the steam cooking device 100 in the related art, after the steam enters the cooking chamber 101, the flow rate is not only low, but also the flow direction is irregular, which leads to low heating efficiency of food, and the whole cooking The process takes a long time. For example, steaming eggs generally takes 20 minutes or more, which obviously cannot meet the cooking needs of some fast-paced people.
- the embodiments of the present disclosure provide a steam cooking device, which not only can meet people's health needs for cooking food, but also has high cooking efficiency.
- the steam cooking device may be a desktop steam cooking device, or may be a built-in steam cooking device that can be embedded in a wall or under a table, which is not specifically limited in the present disclosure.
- the core function of the steam cooking device includes at least steaming, and in addition, it may also include one or more of functions such as microwave, grill, microwave steam, microwave oven, and steam oven.
- the specific product type of the steam cooking equipment is not limited, for example, it may be a steamer, an integrated steamer and oven, an integrated micro-steamer, an integrated micro-steamer and oven, and so on.
- the working process includes the following two working stages:
- Oxygen exhaust work stage In this oxygen exhausting working stage, the oxygen in the cooking cavity is exhausted as much as possible, so as to reduce the oxygen concentration in the cooking cavity. Since oxygen exists in the air, the purpose of deoxygenation can be achieved by discharging the air in the cooking cavity, and the oxygen depletion working stage is also the working stage of discharging air.
- the cooking stage In this cooking stage, the food is heated and cooked by jetting high-speed steam to quickly surround the food. Since the concentration of oxygen in the cooking chamber is low enough in this cooking stage, the harmful substances that may be produced by the reaction of oxygen and high-temperature food can be greatly reduced, thereby ensuring the health and nutrition of the food. In addition, filling the cooking cavity with steam by spraying can realize rapid heat exchange between the steam and the food, and shorten the cooking time of the food.
- the main structure of the steam cooking equipment includes a box body, an oxygen exhaust device and a steam injection device, wherein the box body includes a cooking cavity, the cooking cavity has air holes, the oxygen exhaust device is configured to discharge the oxygen in the cooking cavity through the air holes, and the steam injection device is configured To inject steam into the cooking cabinet.
- the specific type of the oxygen exhaust device is not limited, for example, it can be a vacuum exhaust device based on vacuuming to achieve oxygen exhaust, or it can be designed based on the specific structure of the box to achieve oxygen exhaust based on the pressure difference of the gas.
- the setting position of the air hole of the cooking cavity is not limited. For example, when the oxygen exhaust device realizes oxygen exhaust based on vacuuming, the air hole can be arranged at any position of the cooking cavity, and the oxygen exhaust device extracts the oxygen in the cooking cavity through the air hole.
- the time interval between the deoxygenation working phase and the cooking working phase is not less than zero.
- the time interval can be zero or close to zero, so that the steam cooking device can quickly enter the cooking working phase after the oxygen exhausting working phase ends.
- its control device such as a microprocessor
- the box body further includes a pressure cavity, and the pressure cavity and the cooking cavity are separated by an orifice plate, and the orifice plate includes a plurality of through holes communicating the pressure cavity and the cooking cavity.
- the steam cooking equipment also includes a steam generating device, a steam discharging device and a control device, wherein the steam generating device is configured to deliver steam into the pressure chamber and/or deliver steam to the steam injection device, and the steam discharging device is configured to turn the cooking cavity The steam inside is transported to the steam injection device.
- the control device controls the opening of the steam generating device and the closing of the steam discharging device, so that the oxygen in the cooking cavity is discharged through the air holes, and, during the cooking working stage, the control device Control the opening of the steam discharge device, so that the steam is sprayed into the cooking cavity through the steam injection device.
- the steam pressure in the pressure chamber is relatively high, it can enter into the cooking chamber with relatively low pressure through a plurality of through holes of the orifice plate, thereby exhausting as much oxygen in the cooking chamber as possible.
- the relative positions of the cooking cavity and the pressure cavity are not limited.
- the design of the oxygen exhaust device in this embodiment is based on the pressure difference of the gas to achieve oxygen exhaust through the specific structural design of the box (such as pressure chamber, orifice plate, air hole, etc.).
- FIG. 2 it is a front view of a steam cooking device 200 according to some exemplary embodiments of the present disclosure.
- the steam cooking device 200 mainly includes a box body 210 , a steam generating device 220 , a steam injection device 230 , a steam exhausting device 240 and a control device 250 .
- the steam cooking device 200 is a front-opening steam cooking device
- the box 210 is the main body of the steam cooking device 200 and is located in the casing 270 .
- orientations such as up, down, left, right, top, bottom, front, back, etc.
- the box body 210 includes a cooking cavity 212 and a pressure cavity 213 separated by an orifice plate 211 .
- a support (not shown in the figure) and/or a tray 290 and other cooking aids for carrying the food 300 may be arranged in the cooking cavity 212 .
- the bottom of the cooking cavity 212 has an air hole 2120 for discharging oxygen (that is, an air hole for discharging air), and the air hole 2120 can be located at the bottom wall of the cooking cavity 212 or one of the side walls, such as the back side wall as shown in the figure 212c.
- the pressure chamber 213 is located above the cooking chamber 212, and the steam generated by the steam generating device 220 is transported to the pressure chamber 213 (such as the branch pipeline 260 shown in the figure).
- the orifice plate 211 includes a plurality of through holes 2110 communicating the pressure cavity 213 with the cooking cavity 212 , so that the steam in the pressure cavity 213 can enter the relatively low pressure cooking cavity 212 .
- the steam supplied through the pressure chamber 213 uniformly enters the cooking chamber 212 from substantially the entire bottom surface of the pressure chamber 213 .
- the shape of the cooking chamber 212 is substantially cuboid, including the left side wall 212a shown in the figure, the right side wall 212b, the back side wall 212c, the bottom wall 212d and the bottom wall formed by the lower surface of the orifice plate 211.
- Top wall 212e When the front door of the steam cooking device 200 is closed, the inner side wall of the front door serves as the front side wall of the cooking cavity 212 .
- the box body 210 is, for example, a sheet metal box body.
- Both the steam injection device 230 and the steam discharge device 240 are turned on during the cooking session.
- the steam discharge device 240 such as a centrifugal fan or other negative pressure devices, is used to transport the steam in the cooking chamber 212 to the steam injection device 230 .
- the steam injection device 230 is used for injecting steam into the cooking cavity 212 in a spraying manner, so that the steam quickly surrounds the food 300 on the cooking aid, thereby heating and cooking the food 300 .
- the control device 250 is used to realize the automatic control of the steam cooking equipment 200, so as to realize the automatic switching from the oxygen exhausting working stage to the cooking working stage.
- the steam discharge device 240 is closed, and, in the cooking phase, the control device 250 controls the steam discharge device 240 to open, and can also control the steam generating device 220 to open simultaneously.
- the installation positions of the steam generating device 220 and the control device 250 in the steam cooking device 200 are only schematic, and do not represent their actual installation positions. The specific installation positions can be flexibly designed according to requirements.
- the steam 500 generated by the steam generating device 220 can enter the pressure chamber 213 and enter the cooking chamber 212 through a plurality of through holes 2110 on the orifice plate 211 during the oxygen exhausting working phase.
- the inventors of the present disclosure found in the process of implementing the embodiments of the present disclosure that when steam enters the cooking cavity 212, the temperature of the air inside is close to the temperature of the external environment, and the density is about 1.2kg/m 3 , while the density of the steam is about It is 0.6kg/m 3 .
- the difference in density between the steam and the air makes the steam that has just entered the cooking chamber 212 first float on the top area of the cooking chamber 212, and as the steam 500 continues to enter, the steam 500 will push the air 400 downwards, thereby forcing the air 400 to gradually It is discharged from the air hole 2120 at the bottom of the cooking cavity 212.
- the gas density in the cooking chamber 212 presents a positive density gradient, that is, the density of the gas increases in a gradient from top to bottom, which can minimize the mixing of steam and air, thereby as much as possible
- Exhaust that is, exhaust the oxygen in the air as much as possible, so that the oxygen concentration in the cooking cavity 212 is reduced to the minimum.
- Fig. 4A is a simulation diagram of concentration distribution of steam at several different moments after entering the cooking chamber in some embodiments of the present disclosure. It can be understood that in the cooking cavity, the greater the concentration of steam, the smaller the concentration of air, and the smaller the concentration of oxygen in the air. As shown in Figure 4A, during the oxygen exhaust process, the concentration stratification of steam and air is clearly visible, and the interface between the two is pushed down over time like a piston until the air is fully exhausted.
- FIG. 4B is a simulated graph of steam concentration distribution obtained by the inventors of the present disclosure using a steam cooking device in the related art as a comparison example under the same time parameters.
- the steam cooking device 200 provided by the embodiment of the present disclosure can greatly reduce the oxygen content in the cooking cavity 212 , thereby reducing the generation of harmful substances from the reaction between oxygen and high-temperature food, and meeting people's health needs for cooking food.
- the steam exhausting device 240 enters into the cooking working phase after the deoxygenating working phase ends.
- the steam delivery device 240 transports the steam 500 in the cooking cavity 212 to the steam injection device 230, so that the steam injection device 230 injects the steam 500 into the cooking cavity 212; meanwhile, the steam generating device 220 can also Continue to add steam 500 to the cooking chamber 212 through the pressure chamber 213 . Since the steam is injected into the cooking cavity 212 in the form of injection, the flow rate of the steam is greatly improved compared with the above-mentioned related technologies, and the high-speed flowing steam can quickly surround the food on the cooking aid, thereby achieving the effect of strengthening heat exchange, making the food The cooking time is greatly reduced.
- the steam velocity simulation nephogram along the longitudinal section inside the cooking cavity 212 in the cooking working stage is shown. It can be seen from the figure that when the steam with a higher flow rate reaches the cooking aids such as trays, it will collide with the cooking aids, and then be changed direction by the surface of the cooking aids and quickly spread along the surface of the cooking aids. Thereby, the food on the cooking aid is surrounded as a whole.
- the steam with a higher flow rate is mainly concentrated above the cooking aids, that is, it is mainly concentrated in the area where the food is placed. In this way, the temperature of the steam in the area where the food is placed is higher than that in other areas. It can quickly exchange heat with food to achieve the purpose of shortening food cooking time and improving cooking efficiency.
- the steam cooking device 200 provided by the embodiment of the present disclosure can effectively shorten the cooking time of food and improve the cooking efficiency on the premise of meeting people's health needs for cooking food.
- the working time of the steam cooking device in the oxygen discharge working phase is a first preset time length
- the working time in the cooking working phase is a second preset time length.
- the first preset duration can be set before the device leaves the factory
- the second preset duration can be set according to the specific function design of the steam cooking device, either before the device leaves the factory, or by the user according to cooking needs.
- the user chooses to start the egg steaming function of the steam cooking device.
- the first preset time length is 1 minute
- the second preset time length is 9 minutes.
- the oxygen concentration is low enough, and after the second preset period of time in the cooking stage, the steam ejected by the steam injection device can quickly steam the eggs.
- the steam cooking device 200 further includes an oxygen concentration detection device 280 for obtaining the oxygen concentration in the cooking cavity 212, and the probe of the oxygen concentration detection device 280 is exposed in the cooking cavity.
- 212 for example, is set at the bottom of the cooking cavity 212.
- the aforementioned control device 250 is also configured to, in response to the concentration of oxygen being higher than the concentration threshold, control the opening of the oxygen exhausting working phase and the closing of the cooking working phase, in this embodiment, that is, control the opening of the steam generating device 220 and control the steam discharge
- the device 240 is closed; and, in response to the concentration of oxygen being not higher than the concentration threshold, the control closes the oxygen exhausting working phase and opens the cooking working phase, in this embodiment, that is, controlling the opening of the steam discharge device 240, and the steam generating device 220 also can be turned on together.
- the duration of the oxygen exhausting working phase is determined by the actual concentration of oxygen in the cooking cavity 212 , therefore, the concentration of oxygen in the cooking cavity 212 can be controlled more precisely, so as to achieve more sufficient oxygen exhausting.
- control device 250 is further configured to control the steam generating device 220 to shut down or control the working power of the steam generating device 220 to be smaller than that in the oxygen exhausting working phase during the cooking working phase. Since the steam can be recycled through the steam discharge device 240 during the cooking phase, and, as mentioned above, the concentration of the steam in the cooking cavity 212 is relatively high, therefore, the steam generating device 220 can be closed during the cooking phase, or Properly reduce the working power of the steam generating device 220 to reduce the energy consumption of the equipment.
- the steam inlets 2130 of the pressure chamber 213 there are two steam inlets 2130 of the pressure chamber 213 , which are located on the left and right sides of the steam cooking device 200 .
- the steam generating device 220 simultaneously delivers steam to the two steam inlets 2130 through the branch pipeline 260 , so that the steam can fill the pressure chamber 213 quickly and evenly.
- the number of steam inlets 2130 is not limited to two, for example, there may be one or more than two.
- the present disclosure does not specifically limit the location of the steam inlet 2130 , which can be designed with reference to the design location of the steam generator.
- the orifice plate 211 includes a first region 211a and a second region 211b surrounding the first region 211a, and the plurality of through holes 2110 includes a plurality of second regions located in the first region 211a.
- the steam first reaches the top of the second area 211b, and the tangential flow velocity in the second area 211b (that is, the velocity along the tangential direction of the orifice 211) is relatively high, and the pressure is low, and then reaches the first area Above 211a and in this first region 211a the tangential flow velocity decreases and the pressure increases.
- the plurality of through holes 2110 adopt a design with a dense center and a sparse periphery, which can reduce the pressure of the steam above the first region 211a to a certain extent, thereby effectively improving the backflow caused by the difference in steam pressure and facilitating the uniformity of the steam. released to the cooking cavity 212.
- the design for a plurality of through holes may also be that the arrangement density of the first through holes and the second through holes are approximately the same, but the diameter of the first through holes is larger than that of the second through holes. Aperture, this embodiment can also obtain similar technical effects based on the above principles. In yet another embodiment of the present disclosure, the above-mentioned density design and pore size difference design for multiple through holes may also be used in combination, so as to achieve similar technical effects.
- the size and arrangement density of the multiple through holes on the orifice plate are not limited to the above embodiments, for example, the multiple through holes on the orifice plate may also have the same diameter and be evenly distributed.
- the food 300 when using the steam cooking device 200 , the food 300 is usually placed in the central area of the cooking cavity 212 , that is, directly above the middle of the bottom wall 212 d of the cooking cavity 212 .
- the number of steam injection devices 230 is two, and the two steam injection devices 230 are symmetrically arranged on both sides of the central area of the cooking cavity 212, and symmetrically directed towards the cooking chamber.
- the steam 500 sprayed from the central area of the cavity 212 can make the steam around the food 300 more uniform, thereby further improving the heating efficiency of the food 300 .
- the steam ejection device 240 is a centrifugal fan, the number is also two, and the two steam injection devices 230 are provided in one-to-one correspondence. That is, each steam delivery device 240 is configured to deliver the steam 500 in the cooking cavity to a corresponding one of the steam injection devices 230 .
- the steam 500 is transported to the two steam injection devices 230 in one-to-one correspondence through the two steam discharge devices 240, which can improve the recycling efficiency of the steam in the cooking cavity, keep the steam in the cooking cavity at a high flow rate, and shorten the cooking time of the food. Cooking time, improve cooking efficiency.
- the present disclosure does not limit the specific quantity of the steam injection device and the steam discharge device.
- the number of the steam discharge device may also be one, and the steam is delivered to the two steam injection devices simultaneously through a specially designed branch pipeline.
- the steam exhausting device 240 is a centrifugal fan located outside the back side wall 212c of the cooking cavity 212, and the back side wall 212c of the cooking cavity 212 has a A plurality of grid holes 2121 (in FIG. 9 , the steam exhausting device 240 is blocked by the plurality of grid holes 2121 , so it is only shown by a dotted line).
- the centrifugal fan uses the high-speed rotating impeller 2401 to accelerate the steam 500, then decelerates, changes the flow direction, and converts kinetic energy into potential energy (ie, the pressure of the gas).
- the centrifugal fan includes a volute 2402 and an impeller 2401 inside the volute 2402 .
- the steam 500 enters the volute 2402 axially from the air inlet side 2403 of the centrifugal fan, changes the flow direction to the radial direction after the action of the impeller 2401 , then is discharged from the air outlet 2404 of the volute 2402 , and then enters the steam injection device 230 .
- the air outlet 2404 of the volute 2402 communicates with the steam inlet of the steam injection device 230 .
- the volute 2402 of the centrifugal fan is further provided with a heating device 2405 for reheating the steam 500 entering the volute 2402 .
- the specific type and structure of the heating device 2405 are not limited, for example, as shown in the figure, it may be a ring-shaped heating pipe surrounding the impeller 2401 .
- the steam 500 is heated by the heating device 2405 in the volute 2402 and then injected into the cooking chamber through the steam injection device 230, which can further increase the temperature of the steam in the cooking chamber, thereby further improving the cooking efficiency.
- the heating device may also be provided in the steam injection device or in the steam delivery path between the steam discharge device and the steam injection device.
- the number of heating devices is also not limited to one.
- the steam injection device 230 includes: a central delivery pipe 2301 and an injection structure 2302 arranged along the extension direction of the central delivery pipe 2301, wherein the delivery end of the central delivery pipe 2301 ( That is, the end of the central delivery pipe 2301 along the delivery direction of the steam 500, the delivery direction of the steam 500 in the central delivery pipe 2301 is closed as shown by the dotted arrow), and the lumen cross-sectional area of the central delivery pipe 2301 is along the direction towards the delivery end. The direction is decreasing.
- the specific shape of the central delivery tube 2301 is not limited, for example, the cross-sectional shape of its lumen can be circular, rectangular or trapezoidal and so on.
- the central conveying pipe 2301 shown in FIG. 10 has a shape characteristic of being wide first and then narrow along the conveying direction of the steam 500 .
- the injection structure 2302 includes a plurality of nozzles 2302 a arranged along the extension direction of the central delivery pipe 2301 , so that the steam 500 is ejected from the plurality of nozzles 2302 a respectively.
- the inventors of the present disclosure found in the process of implementing the embodiments of the present disclosure that if the lumen cross-sectional area of the central delivery pipe 2301 is constant, according to Bernoulli's principle, then the steam flow field is downstream (that is, the central delivery pipe 2301 The position closer to the delivery end of the central delivery pipe 2301 in the extension direction of the central delivery pipe 2301) is bound to have a higher pressure, so that the flow rate of the steam ejected from the downstream of the central delivery pipe 2301 is higher.
- the lumen cross-sectional area of the central delivery pipe 2301 decreases gradually along the direction toward the delivery end, so that the flow velocity of the steam ejected from the downstream of the central delivery pipe 2301 can be weakened to a certain extent, so that, from The flow velocity of the steam 500 sprayed out by the steam injection device 230 is relatively uniform.
- FIG. 11 it is a simulation cloud diagram of the velocity of steam ejected from the steam injection device 230 of the embodiment shown in FIG. 10 . It can be seen that, with the steam injection device 230 designed above, the steam can be injected into the cooking chamber at a relatively uniform flow rate along the direction perpendicular to the central delivery pipe 2301, thereby achieving uniform and rapid heating of the food.
- Spray configuration 2302 is not limited to the design employing nozzle 2302a described above.
- the injection structure 2302 can also be a louver, and a plurality of blades 2302b of the louver extend along the extension direction of the central delivery pipe 2301, so that the steam 500 flows from between adjacent blades 2302b. Squirt out from the gaps in between.
- the injection structure 2302 can also be a slit 2302c opened on the wall of the central delivery pipe 2301 , so that the steam 500 can be sprayed out from the slit 2302c.
- the present disclosure does not limit the specific installation positions of the steam injection device 230 and the steam discharge device 240 .
- the two steam injection devices 230 can be arranged on the top of the cooking chamber, and can also be arranged on the peripheral side of the cooking chamber.
- the steam exhausting device 240 can be arranged on the back side of the cooking cavity, or on the left side wall or the right side wall of the cooking cavity.
- two steam discharge devices 240 are arranged on the outside of the back side wall 212c of the cooking cavity 212, wherein a steam injection device 230 is fixedly arranged on the top wall 212e and the left side. In the edge area adjacent to the side wall 212a, another steam injection device 230 is fixedly arranged on the edge area of the top wall 212e adjacent to the right side wall 212b.
- the two steam injection devices 230 are arranged oppositely and inject steam toward the central area of the cooking cavity 212 in an obliquely downward direction.
- two steam discharge devices 240 are arranged on the outside of the back side wall 212c of the cooking chamber 212, and one steam injection device 230 is fixedly arranged on the left side wall 212a. In the edge area adjacent to the top wall 212e, another steam injection device 230 is fixedly arranged on the edge area of the right side wall 212b adjacent to the top wall 212e.
- the two steam injection devices 230 are arranged oppositely and inject steam toward the central area of the cooking cavity 212 in an obliquely downward direction.
- two steam discharge devices 240 are arranged on the outside of the back side wall 212c of the cooking cavity 212, and one steam injection device 230 is fixedly arranged on the back side wall 212c.
- a further steam injection device 230 is fixedly arranged in the edge region of the rear side wall 212c adjacent to the right side wall 212b.
- the two steam injection devices 230 inject steam toward the central area of the cooking cavity 212 at the same time.
- the two steam injection devices 230 are, for example, louver-type steam injection devices shown in FIG. 12 .
- the steam cooking equipment provided by the embodiments of the present disclosure can effectively shorten the cooking time of food and improve the cooking efficiency under the premise of satisfying people's health needs for cooking food.
- first”, “second”, “third”, etc. are used for descriptive purposes only, and should not be interpreted as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as “first”, “second” and “third” may explicitly or implicitly include one or more of these features.
- “plurality” means two or more, unless otherwise specifically defined.
- a first feature being "on” or “under” a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them.
- “above”, “above” and “above” the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.
- “Below”, “beneath” and “under” the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.
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Abstract
A steamer cooking apparatus (200), which relates to the technical field of kitchen appliances. The steamer cooking apparatus (200) comprises: a box body (210), which comprises a cooking cavity (212), the cooking cavity (212) being provided with air holes (2120); an oxygen exhaust device, which is configured to exhaust oxygen within the cooking cavity (212) through the air holes (2120); a steam spraying device (230), which is configured to spray steam (500) into the cooking cavity (212); and a control device (250), which is configured to control the steam spraying device (230) to start after the operation of the oxygen exhaust device is finished. The steamer cooking apparatus (200) can satisfy health requirements for people's cooked food, and also has a high cooking efficiency.
Description
相关申请的交叉引用Cross References to Related Applications
本申请要求于2021年7月16日提交的、申请号为202110808883.9、发明名称为“蒸汽式烹饪设备”的发明专利申请的优先权,本申请所要求优先权的公开通过引用全文并入本文。This application claims the priority of the invention patent application with the application number 202110808883.9 and the invention name "steam cooking equipment" submitted on July 16, 2021. The disclosure of the priority claimed by this application is incorporated herein by reference in its entirety.
本公开涉及厨用电器技术领域,特别涉及一种蒸汽式烹饪设备。The present disclosure relates to the technical field of kitchen appliances, in particular to a steam cooking device.
随着全球经济的发展和生活水平的改善,人们对于食品健康指标的关注度也在日趋提高。相较于传统的油炸、高温烘烤等烹饪方式,蒸汽烹饪因其减脂少油、营养锁鲜等烹饪特点而越来越受青睐。With the development of the global economy and the improvement of living standards, people are paying more and more attention to food health indicators. Compared with traditional cooking methods such as frying and high-temperature baking, steam cooking is becoming more and more popular because of its cooking characteristics such as reducing fat and oil, and preserving nutrition.
然而,在蒸汽烹饪过程中,由于食物周围有氧气存在,食物中的某些成分与氧气反应,可能会产生有害物质,例如杂环胺。研究发现,杂环胺的产生量与烹饪时食物周围的氧气含量相关。However, during steam cooking, due to the presence of oxygen around the food, certain ingredients in the food react with oxygen and may produce harmful substances, such as heterocyclic amines. The study found that the amount of HCAs produced correlates with the amount of oxygen around the food during cooking.
与此同时,都市生活下,人们的工作和生活节奏越来越快,对于烹饪时间也非常敏感。目前,蒸汽式烹饪设备的烹饪速度仍然不够理想。At the same time, in urban life, people's work and life rhythms are getting faster and faster, and they are also very sensitive to cooking time. At present, the cooking speed of steam cooking equipment is still not ideal.
发明内容Contents of the invention
本公开旨在至少解决现有技术中存在的技术问题之一。为此,本公开的目的在于提出一种蒸汽式烹饪设备,其不但能够满足人们对烹饪食物的健康需求,而且烹饪效率也较高。The present disclosure aims to solve at least one of the technical problems existing in the prior art. Therefore, the purpose of the present disclosure is to propose a steam cooking device, which can not only meet people's health needs for cooking food, but also has high cooking efficiency.
根据本公开的一个实施例的蒸汽式烹饪设备,包括:箱体,包括烹饪腔,所述烹饪腔具有气孔;排氧装置,配置为通过所述气孔排出所述烹饪腔内的氧气;蒸汽喷射装置,配置为向所述烹饪腔内喷射蒸汽;及控制装置,配置为控制所述蒸汽喷射装置在所述排氧装置工作结束后启动。A steam cooking device according to an embodiment of the present disclosure, comprising: a box body including a cooking cavity, the cooking cavity has air holes; an oxygen exhaust device configured to discharge oxygen in the cooking cavity through the air holes; steam injection A device configured to inject steam into the cooking cavity; and a control device configured to control the steam injection device to start after the oxygen exhaust device finishes working.
根据本公开上述实施例的蒸汽式烹饪设备,其可以先通过排氧装置将烹饪腔内的氧气尽可能多的排出,以降低烹饪腔内的氧气浓度,然后再通过蒸汽喷射装置喷射的高速蒸汽快速包围食物,将食物加热烹熟。由于在烹饪食物时,蒸汽式烹饪设备的烹饪腔内 的氧气浓度已经足够低,因此,可以大大减少氧气与高温食物反应可能产生的有害物质,满足人们对烹饪食物的健康需求。在烹饪食物时,通过喷射的方式向烹饪腔内充入蒸汽,可以实现蒸汽与食物的快速换热,缩短食物的烹饪时间,从而可以提高烹饪的效率。According to the steam cooking equipment of the above-mentioned embodiments of the present disclosure, the oxygen in the cooking cavity can be exhausted as much as possible through the oxygen exhaust device first, so as to reduce the oxygen concentration in the cooking cavity, and then the high-speed steam injected by the steam injection device can Quickly surrounds and cooks food over heat. Since the oxygen concentration in the cooking chamber of the steam cooking device is low enough when cooking food, the harmful substances that may be produced by the reaction of oxygen and high-temperature food can be greatly reduced to meet people's health needs for cooking food. When cooking food, the steam is injected into the cooking cavity by spraying, so that the rapid heat exchange between the steam and the food can be realized, the cooking time of the food can be shortened, and thus the cooking efficiency can be improved.
根据本公开的上述实施例的蒸汽式烹饪设备,还可以具有如下附加的技术特征中任意一个或任意多个的组合:The steam cooking device according to the above-mentioned embodiments of the present disclosure may also have any one or a combination of any of the following additional technical features:
根据本公开的一个实施例的蒸汽式烹饪设备,所述箱体还包括压力腔,所述压力腔与所述烹饪腔通过孔板间隔,所述孔板包括将所述压力腔与所述烹饪腔连通的多个通孔;所述蒸汽式烹饪设备还包括:蒸汽发生装置,配置为向所述压力腔内输送蒸汽和/或向所述蒸汽喷射装置输送蒸汽;及蒸汽排送装置,配置为将所述烹饪腔内的蒸汽向所述蒸汽喷射装置输送;所述蒸汽式烹饪设备包括排氧工作阶段和位于所述排氧工作阶段之后的烹饪工作阶段,在所述排氧工作阶段,所述控制装置控制所述蒸汽发生装置开启并且控制所述蒸汽排送装置关闭,以使所述烹饪腔内的氧气通过所述气孔排出,及,在所述烹饪工作阶段,所述控制装置控制所述蒸汽排送装置开启,以使蒸汽通过所述蒸汽喷射装置向所述烹饪腔内喷射。According to the steam cooking device according to an embodiment of the present disclosure, the box body further includes a pressure cavity, and the pressure cavity is separated from the cooking cavity by an orifice plate, and the orifice plate includes a A plurality of through holes communicating with the cavity; the steam cooking device also includes: a steam generating device configured to deliver steam into the pressure chamber and/or deliver steam to the steam injection device; and a steam discharge device configured In order to transport the steam in the cooking cavity to the steam injection device; the steam cooking equipment includes an oxygen exhausting working stage and a cooking working stage located after the oxygen exhausting working stage, in the oxygen exhausting working stage, The control device controls the opening of the steam generating device and controls the closing of the steam discharge device, so that the oxygen in the cooking cavity is discharged through the air holes, and, in the cooking phase, the control device controls The steam discharge device is turned on so that steam is sprayed into the cooking cavity through the steam injection device.
由于压力腔内的蒸汽压力相对较高,因此可以经过孔板的多个通孔进入到压力相对较低的烹饪腔内,从而将烹饪腔内的氧气尽可能多的排出。Since the steam pressure in the pressure chamber is relatively high, it can enter into the cooking chamber with relatively low pressure through a plurality of through holes of the orifice plate, thereby exhausting as much oxygen in the cooking chamber as possible.
根据本公开的一个实施例的蒸汽式烹饪设备,所述气孔位于所述烹饪腔的下部,并且所述压力腔位于所述烹饪腔的上方,使得蒸汽从所述压力腔进入所述烹饪腔中。According to one embodiment of the present disclosure, in the steam cooking device, the air hole is located at the lower part of the cooking cavity, and the pressure cavity is located above the cooking cavity, so that steam enters the cooking cavity from the pressure cavity .
在整个空气排出的过程中,烹饪腔内的气体密度呈正密度梯度,这样可以最大限度的减少蒸汽与空气的掺混,从而将空气尽可能多的排出,也就是将空气中的氧气尽可能多的排出,使烹饪腔内的氧气浓度降低最低。During the entire air discharge process, the gas density in the cooking cavity has a positive density gradient, which can minimize the mixing of steam and air, so as to discharge as much air as possible, that is, as much oxygen in the air as possible exhaust to minimize the reduction in oxygen concentration in the cooking chamber.
根据本公开的一个实施例的蒸汽式烹饪设备,所述蒸汽喷射装置为至少两个,至少两个所述蒸汽喷射装置分别设置在所述烹饪腔的中心区域的两侧。该实施例方案可以使得烹饪腔内食物周围的蒸汽更加均匀,从而进一步提高对食物进行加热的效率。According to an embodiment of the present disclosure, in the steam cooking device, there are at least two steam injection devices, and the at least two steam injection devices are respectively arranged on two sides of the central area of the cooking cavity. The solution of this embodiment can make the steam around the food in the cooking cavity more uniform, thereby further improving the efficiency of heating the food.
根据本公开的一个实施例的蒸汽式烹饪设备,所述蒸汽喷射装置包括:中心输送管和沿所述中心输送管的延伸方向设置的喷射结构,其中,所述中心输送管的输送末端封闭,并且,所述中心输送管的管腔横截面积沿着朝向所述输送末端的方向递减。这样,可以在一定程度上削弱蒸汽从中心输送管下游喷出的流速,从而使得从蒸汽喷射装置喷出蒸汽的流速较为均匀。According to a steam cooking device according to an embodiment of the present disclosure, the steam injection device includes: a central delivery pipe and an injection structure arranged along the extension direction of the central delivery pipe, wherein the delivery end of the central delivery pipe is closed, Moreover, the lumen cross-sectional area of the central delivery tube decreases gradually toward the delivery end. In this way, the flow velocity of the steam sprayed from the downstream of the central delivery pipe can be weakened to a certain extent, so that the flow velocity of the steam sprayed from the steam injection device is relatively uniform.
根据本公开的一些实施例的蒸汽式烹饪设备,所述喷射结构可以设计为:包括沿所述中心输送管的延伸方向排列的多个喷嘴;或者,所述喷射结构为开设于所述中心输送管的管壁、且沿所述中心输送管的延伸方向延伸的狭缝。According to the steam cooking equipment of some embodiments of the present disclosure, the injection structure may be designed to: include a plurality of nozzles arranged along the extension direction of the central delivery pipe; or, the injection structure is set on the central delivery pipe The tube wall of the tube and the slit extending along the extension direction of the central delivery tube.
根据本公开的一个实施例的蒸汽式烹饪设备,至少两个所述蒸汽喷射装置设于所述烹饪腔的顶部;或者,至少两个所述蒸汽喷射装置设于所述烹饪腔的周侧。According to one embodiment of the present disclosure, in the steam cooking device, at least two of the steam injection devices are arranged on the top of the cooking cavity; or, at least two of the steam injection devices are arranged on the peripheral side of the cooking cavity.
根据本公开的一个实施例的蒸汽式烹饪设备,所述蒸汽排送装置为至少两个,每个所述蒸汽排送装置与一个或者更多个所述蒸汽喷射装置相连。通过至少两个蒸汽排送装置将蒸汽向前述至少两个蒸汽喷射装置输送,可以提高烹饪腔内蒸汽的循环利用效率,使烹饪腔内的蒸汽保持较高的流速,从而缩短食物烹饪时间,提升烹饪的效率。According to one embodiment of the present disclosure, in the steam cooking device, there are at least two steam discharge devices, each of which is connected to one or more steam injection devices. The steam is delivered to the aforementioned at least two steam injection devices through at least two steam discharge devices, which can improve the recycling efficiency of the steam in the cooking cavity, keep the steam in the cooking cavity at a high flow rate, thereby shortening the food cooking time and improving the cooking time. Cooking efficiency.
根据本公开的一个实施例的蒸汽式烹饪设备,还包括:加热装置,设于所述蒸汽排送装置、所述蒸汽喷射装置、所述蒸汽排送装置与所述蒸汽喷射装置之间的蒸汽输送路径中的至少一个。The steam cooking device according to an embodiment of the present disclosure further includes: a heating device, the steam provided between the steam discharge device, the steam injection device, and the steam discharge device and the steam injection device at least one of the delivery paths.
根据本公开的一个实施例的蒸汽式烹饪设备,所述蒸汽排送装置为离心风机,所述加热装置呈环形并且环绕在所述离心风机的叶轮的周侧。According to one embodiment of the present disclosure, in the steam cooking device, the steam discharge device is a centrifugal fan, and the heating device is annular and surrounds the impeller of the centrifugal fan.
上述实施例设计,蒸汽式烹饪设备在烹饪食物时,蒸汽经过加热装置加热后再通过蒸汽喷射装置向烹饪腔喷射,可以进一步提高烹饪腔内蒸汽的温度,从而进一步提高烹饪的效率。According to the above embodiments, when the steam cooking equipment cooks food, the steam is heated by the heating device and then sprayed into the cooking cavity by the steam injection device, which can further increase the temperature of the steam in the cooking cavity, thereby further improving the cooking efficiency.
根据本公开的一个实施例的蒸汽式烹饪设备,所述压力腔的蒸汽入口至少为两个,所述蒸汽发生装置通过分歧管路向所述压力腔的所述至少两个蒸汽入口输送蒸汽。这样,可以使蒸汽快速而且较为均衡的充满压力腔,提高蒸汽式烹饪设备的工作效率。According to one embodiment of the present disclosure, in the steam cooking device, there are at least two steam inlets in the pressure chamber, and the steam generating device sends steam to the at least two steam inlets in the pressure chamber through a branch pipeline. In this way, the steam can be quickly and evenly filled in the pressure chamber, and the working efficiency of the steam cooking equipment can be improved.
根据本公开的一个实施例的蒸汽式烹饪设备,所述排氧工作阶段和所述烹饪工作阶段之间的时间间隔不小于零。例如,时间间隔可以为零或者接近零,这样可以进一步缩短食物的烹饪时间。According to the steam cooking device according to an embodiment of the present disclosure, the time interval between the oxygen exhausting working phase and the cooking working phase is not less than zero. For example, the time interval can be zero or close to zero, which can further reduce the cooking time of the food.
根据本公开的一个实施例的蒸汽式烹饪设备,所述蒸汽式烹饪设备在所述排氧工作阶段的工作时长为第一预设时长,所述蒸汽式烹饪设备在所述烹饪工作阶段的工作时长为第二预设时长。According to the steam cooking device according to an embodiment of the present disclosure, the working duration of the steam cooking device in the oxygen-exhausting working stage is a first preset duration, and the working duration of the steam cooking device in the cooking working stage The duration is the second preset duration.
根据本公开的一个实施例的蒸汽式烹饪设备,还包括氧气浓度检测装置,配置为获取所述烹饪腔内氧气的浓度;所述控制装置还配置为,响应于所述烹饪腔内氧气的浓度高于浓度阈值,控制开启所述排氧工作阶段及关闭所述烹饪工作阶段;及,响应于所述烹饪腔内氧气的浓度不高于浓度阈值,控制关闭所述排氧工作阶段及开启所述烹饪工作 阶段。该实施例中,排氧工作阶段的经历时长由烹饪腔内氧气的实际浓度来决定,因此,可以更为精准的控制烹饪腔内氧气的浓度,从而实现更加充分的排氧。The steam cooking device according to an embodiment of the present disclosure further includes an oxygen concentration detection device configured to acquire the concentration of oxygen in the cooking cavity; the control device is further configured to respond to the concentration of oxygen in the cooking cavity is higher than the concentration threshold, controlling to turn on the oxygen exhausting working stage and closing the cooking working stage; Describe the cooking phases. In this embodiment, the elapsed time of the oxygen exhausting working phase is determined by the actual concentration of oxygen in the cooking cavity. Therefore, the concentration of oxygen in the cooking cavity can be controlled more precisely, so as to achieve more sufficient oxygen exhausting.
根据本公开的一个实施例的蒸汽式烹饪设备,所述控制装置还配置为,在所述烹饪工作阶段,控制所述蒸汽发生装置关闭,或者控制所述蒸汽发生装置的工作功率小于在所述排氧工作阶段的工作功率。由于蒸汽在烹饪工作阶段可以通过蒸汽排送装置被循环利用,而且,烹饪腔内蒸汽的浓度也相对较高,因此,可以在烹饪工作阶段关闭蒸汽发生装置或者适当降低蒸汽发生装置的工作功率,以降低设备的能耗。According to the steam cooking device according to an embodiment of the present disclosure, the control device is further configured to, in the cooking phase, control the steam generating device to be turned off, or control the working power of the steam generating device to be less than that in the cooking phase. The working power of the oxygen exhausting working stage. Since the steam can be recycled through the steam discharge device during the cooking phase, and the concentration of steam in the cooking cavity is relatively high, the steam generating device can be turned off or the working power of the steam generating device can be appropriately reduced during the cooking phase. In order to reduce the energy consumption of the equipment.
根据本公开的一个实施例的蒸汽式烹饪设备,所述蒸汽式烹饪设备包括蒸箱、蒸烤一体机、微蒸一体机或微蒸烤一体机。According to a steam cooking device according to an embodiment of the present disclosure, the steam cooking device includes a steam box, an integrated steam and oven, an integrated micro steamer or an integrated micro steam and oven.
在附图中,除非另外规定,否则贯穿多个附图相同的附图标记表示相同或相似的部件或元素。这些附图不一定是按照比例绘制的。应该理解,这些附图仅描绘了根据本申请公开的一些实施方式,而不应将其视为是对本申请范围的限制。In the drawings, unless otherwise specified, the same reference numerals designate the same or similar parts or elements throughout the several drawings. The drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed according to the application, and should not be regarded as limiting the scope of the application.
图1示出了相关技术中的一种蒸汽式烹饪设备的结构示意图;Fig. 1 shows a schematic structural view of a steam cooking device in the related art;
图2示出了根据本公开一些示例性实施例的蒸汽式烹饪设备的主视图;Fig. 2 shows a front view of a steam cooking device according to some exemplary embodiments of the present disclosure;
图3示出了根据本公开一些示例性实施例的蒸汽式烹饪设备工作在排氧工作阶段的主视图;Fig. 3 shows a front view of a steam cooking device working in an oxygen exhausting working stage according to some exemplary embodiments of the present disclosure;
图4A示出了根据本公开一些示例性实施例的蒸汽式烹饪设备,蒸汽在进入烹饪腔后在几个不同时刻下的浓度分布仿真图;Fig. 4A shows a steam cooking device according to some exemplary embodiments of the present disclosure, a simulation diagram of the concentration distribution of steam at several different moments after entering the cooking cavity;
图4B示出了根据相关技术中的一种蒸汽式烹饪设备,蒸汽在进入烹饪腔后在几个不同时刻下的浓度分布仿真图;Fig. 4B shows a simulation diagram of the concentration distribution of steam at several different moments after entering the cooking cavity according to a steam cooking device in the related art;
图5示出了根据本公开一些示例性实施例的蒸汽式烹饪设备工作在烹饪工作阶段的主视图;Fig. 5 shows a front view of a steam cooking device working in a cooking phase according to some exemplary embodiments of the present disclosure;
图6示出了根据本公开一些示例性实施例的蒸汽式烹饪设备工作在烹饪工作阶段时,其烹饪腔内部沿纵向截面的蒸汽速度仿真云图;Fig. 6 shows a simulation nephogram of the steam velocity along the longitudinal section inside the cooking cavity when the steam cooking device is working in the cooking phase according to some exemplary embodiments of the present disclosure;
图7示出了根据本公开一些示例性实施例的蒸汽式烹饪设备的箱体的立体示意图;Fig. 7 shows a schematic perspective view of a cabinet of a steam cooking device according to some exemplary embodiments of the present disclosure;
图8示出了根据本公开一些示例性实施例的蒸汽式烹饪设备的箱体、蒸汽喷射装置和蒸汽排送装置的立体图;Fig. 8 shows a perspective view of a cabinet, a steam injection device and a steam discharge device of a steam cooking device according to some exemplary embodiments of the present disclosure;
图9示出了根据本公开一些示例性实施例的蒸汽式烹饪设备的箱体、蒸汽喷射装置和蒸汽排送装置的主视图;Fig. 9 shows a front view of a cabinet, a steam injection device and a steam discharge device of a steam cooking device according to some exemplary embodiments of the present disclosure;
图10示出了根据本公开一些示例性实施例的蒸汽式烹饪设备的蒸汽喷射装置和蒸汽排送装置的立体图;Fig. 10 shows a perspective view of a steam injection device and a steam discharge device of a steam cooking device according to some exemplary embodiments of the present disclosure;
图11示出了根据本公开一些示例性实施例的蒸汽式烹饪设备,蒸汽从蒸汽喷射装置喷出的速度仿真云图;Fig. 11 shows a steam-type cooking device according to some exemplary embodiments of the present disclosure, and a simulated nephogram of the velocity of steam ejected from a steam injection device;
图12示出了根据本公开一些示例性实施例的蒸汽式烹饪设备的蒸汽喷射装置的立体图;Fig. 12 shows a perspective view of a steam injection device of a steam cooking device according to some exemplary embodiments of the present disclosure;
图13示出了根据本公开一些示例性实施例的蒸汽式烹饪设备的蒸汽喷射装置的立体图;Fig. 13 shows a perspective view of a steam injection device of a steam cooking device according to some exemplary embodiments of the present disclosure;
图14示出了根据本公开一些示例性实施例的蒸汽式烹饪设备的主视图;及Figure 14 shows a front view of a steam cooking device according to some exemplary embodiments of the present disclosure; and
图15示出了根据本公开一些示例性实施例的蒸汽式烹饪设备的主视图。Fig. 15 shows a front view of a steam cooking device according to some exemplary embodiments of the present disclosure.
附图标记说明:Explanation of reference signs:
相关技术中:Among related technologies:
100-蒸汽式烹饪设备;101-烹饪腔;102-水盒;103-加热器;104-支架。100-steam cooking equipment; 101-cooking cavity; 102-water box; 103-heater; 104-support.
本公开实施例中:In the embodiment of this disclosure:
200-蒸汽式烹饪设备;210-箱体;220-蒸汽发生装置;260-分歧管路;200-steam cooking equipment; 210-box; 220-steam generating device; 260-branch pipeline;
230-蒸汽喷射装置;240-蒸汽排送装置;250-控制装置;270-外壳;211-孔板;230-steam injection device; 240-steam discharge device; 250-control device; 270-shell; 211-orifice plate;
2110-通孔;2110a-第一通孔;2110b-第二通孔;211a-第一区域;211b-第二区域;2110-through hole; 2110a-first through hole; 2110b-second through hole; 211a-first region; 211b-second region;
212-烹饪腔;213-压力腔;2130-蒸汽入口;2120-气孔;212a-左侧壁;212b-右侧壁;212-cooking chamber; 213-pressure chamber; 2130-steam inlet; 2120-air hole; 212a-left side wall; 212b-right side wall;
212c-背侧壁;212d-底壁;212e-顶壁;2301-中心输送管;2302-喷射结构;212c-back side wall; 212d-bottom wall; 212e-top wall; 2301-center delivery tube; 2302-spray structure;
280-氧气浓度检测装置;2121-栅孔;2401-叶轮;2402-蜗壳;2403-进风侧;280-oxygen concentration detection device; 2121-grid hole; 2401-impeller; 2402-volute; 2403-inlet side;
2404-出风口;2405-加热装置;2302a-喷嘴;2302b-叶片;2302c-狭缝;290-托盘;2404-air outlet; 2405-heating device; 2302a-nozzle; 2302b-blade; 2302c-slit; 290-tray;
300-食物;400-空气;500-蒸汽。300-food; 400-air; 500-steam.
在下文中,仅简单地描述了某些示例性实施例。正如本领域技术人员可认识到的那样,在不脱离本申请的精神或范围的情况下,可通过各种不同方式修改所描述的实施例。因此,附图和描述被认为本质上是示例性的而非限制性的。In the following, only some exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present application. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.
如图1所示,相关技术中的一种蒸汽式烹饪设备100,其烹饪腔101的底部设有水盒102,水盒102内设有加热器103。蒸汽式烹饪设备100工作时,加热器103加热水盒102中的水,使其转变为高温水蒸汽并在烹饪腔101中弥漫,从而对支架104上的食物进行加热。As shown in FIG. 1 , a steam cooking device 100 in the related art has a water box 102 provided at the bottom of a cooking chamber 101 , and a heater 103 is provided in the water box 102 . When the steam cooking device 100 is working, the heater 103 heats the water in the water box 102 to convert it into high-temperature water vapor and diffuse in the cooking cavity 101 , thereby heating the food on the support 104 .
如在前述背景技术中的描述,该蒸汽式烹饪设备100在工作过程中,食物的周围不但弥漫着蒸汽,还存有大量的氧气。氧气与高温食物中的某种成分反应,可能会产生一些对人身体健康不利的有害物质。此类蒸汽式烹饪设备100烹饪食物的健康安全问题越来越受到人们的关注。As described in the foregoing background art, during the working process of the steam cooking device 100, not only steam permeates around the food, but also a large amount of oxygen exists. Oxygen reacts with certain components in high-temperature food, which may produce some harmful substances that are harmful to human health. The health and safety of food cooked by this type of steam cooking device 100 has attracted more and more attention.
本公开的发明人还关注到,相关技术中的这种蒸汽式烹饪设备100,蒸汽进入烹饪腔101后,不但流速较低,而且流向无规划性,从而导致加热食物的效率不高,整个烹饪过程耗时较长。例如,蒸蛋一般需要耗时20分钟甚至更长时间,这显然无法满足一些快节奏人群的烹饪需求。The inventors of the present disclosure are also concerned that in the steam cooking device 100 in the related art, after the steam enters the cooking chamber 101, the flow rate is not only low, but also the flow direction is irregular, which leads to low heating efficiency of food, and the whole cooking The process takes a long time. For example, steaming eggs generally takes 20 minutes or more, which obviously cannot meet the cooking needs of some fast-paced people.
为解决上述技术问题,本公开实施例提供了一种蒸汽式烹饪设备,其不但能够满足人们对烹饪食物的健康需求,而且烹饪效率也较高。In order to solve the above technical problems, the embodiments of the present disclosure provide a steam cooking device, which not only can meet people's health needs for cooking food, but also has high cooking efficiency.
在本公开实施例中,蒸汽式烹饪设备可以为台式的蒸汽式烹饪设备,也可以为能够嵌入墙体或台面下方的嵌入式的蒸汽式烹饪设备,本公开对此不做具体限定。In the embodiment of the present disclosure, the steam cooking device may be a desktop steam cooking device, or may be a built-in steam cooking device that can be embedded in a wall or under a table, which is not specifically limited in the present disclosure.
蒸汽式烹饪设备的核心功能至少包括蒸,此外,还可以包括微波、烤、微波蒸、微波烤、蒸汽烤等功能中的一种或多种。蒸汽式烹饪设备的具体产品类型不限,例如可以为蒸箱、蒸烤一体机、微蒸一体机,微蒸烤一体机,等等。The core function of the steam cooking device includes at least steaming, and in addition, it may also include one or more of functions such as microwave, grill, microwave steam, microwave oven, and steam oven. The specific product type of the steam cooking equipment is not limited, for example, it may be a steamer, an integrated steamer and oven, an integrated micro-steamer, an integrated micro-steamer and oven, and so on.
本公开实施例提供的蒸汽式烹饪设备在启动蒸汽烹饪后,工作过程包括以下两个工作阶段:After the steam cooking device provided by the embodiment of the present disclosure starts steam cooking, the working process includes the following two working stages:
一、排氧工作阶段。在该排氧工作阶段,将烹饪腔内的氧气尽可能多的排出,以降低烹饪腔内的氧气浓度。由于氧气存在于空气中,因此,可以通过将烹饪腔内的空气排出,来达到排氧的目的,排氧工作阶段也即排出空气的工作阶段。1. Oxygen exhaust work stage. In this oxygen exhausting working stage, the oxygen in the cooking cavity is exhausted as much as possible, so as to reduce the oxygen concentration in the cooking cavity. Since oxygen exists in the air, the purpose of deoxygenation can be achieved by discharging the air in the cooking cavity, and the oxygen depletion working stage is also the working stage of discharging air.
二、烹饪工作阶段。在该烹饪工作阶段,通过喷射的高速蒸汽快速包围食物,将食物加热烹熟。由于在该烹饪工作阶段,烹饪腔内氧气的浓度已经足够低,因此,可以大大减少氧气与高温食物反应可能产生的有害物质,从而保证食物的健康与营养。此外,通过喷射的方式向烹饪腔内充入蒸汽,可以实现蒸汽与食物的快速换热,缩短食物的烹饪时间。Second, the cooking stage. In this cooking stage, the food is heated and cooked by jetting high-speed steam to quickly surround the food. Since the concentration of oxygen in the cooking chamber is low enough in this cooking stage, the harmful substances that may be produced by the reaction of oxygen and high-temperature food can be greatly reduced, thereby ensuring the health and nutrition of the food. In addition, filling the cooking cavity with steam by spraying can realize rapid heat exchange between the steam and the food, and shorten the cooking time of the food.
蒸汽式烹饪设备的主要结构包括箱体、排氧装置和蒸汽喷射装置,其中,箱体包括烹饪腔,烹饪腔具有气孔,排氧装置配置为通过气孔排出烹饪腔内的氧气,蒸汽喷射装置配置为向烹饪腔内喷射蒸汽。排氧装置的具体类型不限,例如可以为基于抽真空方式实现排氧的抽真空装置,或者为箱体的具体结构设计,基于气体的压力差实现排氧。烹饪腔的气孔的设置位置不限,例如,当排氧装置基于抽真空方式实现排氧时,气孔可以设置在烹饪腔的任意位置,排氧装置通过气孔抽出烹饪腔内的氧气。The main structure of the steam cooking equipment includes a box body, an oxygen exhaust device and a steam injection device, wherein the box body includes a cooking cavity, the cooking cavity has air holes, the oxygen exhaust device is configured to discharge the oxygen in the cooking cavity through the air holes, and the steam injection device is configured To inject steam into the cooking cabinet. The specific type of the oxygen exhaust device is not limited, for example, it can be a vacuum exhaust device based on vacuuming to achieve oxygen exhaust, or it can be designed based on the specific structure of the box to achieve oxygen exhaust based on the pressure difference of the gas. The setting position of the air hole of the cooking cavity is not limited. For example, when the oxygen exhaust device realizes oxygen exhaust based on vacuuming, the air hole can be arranged at any position of the cooking cavity, and the oxygen exhaust device extracts the oxygen in the cooking cavity through the air hole.
在本公开的一些实施例中,排氧工作阶段和烹饪工作阶段之间的时间间隔不小于零。例如,时间间隔可以为零或者接近零,这样,在排氧工作阶段结束后,蒸汽式烹饪设备可以快速进入烹饪工作阶段。蒸汽式烹饪设备在工作时,由其控制装置(例如微处理器)按照设定的控制逻辑,自动进行排氧工作阶段和烹饪工作阶段的切换,以进一步缩短食物的烹饪时间。In some embodiments of the present disclosure, the time interval between the deoxygenation working phase and the cooking working phase is not less than zero. For example, the time interval can be zero or close to zero, so that the steam cooking device can quickly enter the cooking working phase after the oxygen exhausting working phase ends. When the steam cooking equipment is working, its control device (such as a microprocessor) automatically switches between the oxygen exhausting working phase and the cooking working phase according to the set control logic, so as to further shorten the cooking time of food.
在一些实施例中,箱体还包括压力腔,压力腔与烹饪腔通过孔板间隔,孔板包括将压力腔与烹饪腔连通的多个通孔。蒸汽式烹饪设备还包括蒸汽发生装置、蒸汽排送装置和控制装置,其中,蒸汽发生装置配置为向压力腔内输送蒸汽和/或向蒸汽喷射装置输送蒸汽,蒸汽排送装置配置为将烹饪腔内的蒸汽向蒸汽喷射装置输送,在排氧工作阶段,控制装置控制蒸汽发生装置开启并且控制蒸汽排送装置关闭,以使烹饪腔内的氧气通过气孔排出,及,在烹饪工作阶段,控制装置控制蒸汽排送装置开启,以使蒸汽通过蒸汽喷射装置向烹饪腔内喷射。In some embodiments, the box body further includes a pressure cavity, and the pressure cavity and the cooking cavity are separated by an orifice plate, and the orifice plate includes a plurality of through holes communicating the pressure cavity and the cooking cavity. The steam cooking equipment also includes a steam generating device, a steam discharging device and a control device, wherein the steam generating device is configured to deliver steam into the pressure chamber and/or deliver steam to the steam injection device, and the steam discharging device is configured to turn the cooking cavity The steam inside is transported to the steam injection device. During the oxygen exhausting working stage, the control device controls the opening of the steam generating device and the closing of the steam discharging device, so that the oxygen in the cooking cavity is discharged through the air holes, and, during the cooking working stage, the control device Control the opening of the steam discharge device, so that the steam is sprayed into the cooking cavity through the steam injection device.
由于压力腔内的蒸汽压力相对较高,因此可以经过孔板的多个通孔进入到压力相对较低的烹饪腔内,从而将烹饪腔内的氧气尽可能多的排出。其中,烹饪腔和压力腔的相对位置不限。该实施例的排氧装置设计,即是基于气体的压力差通过箱体的具体结构设计(例如压力腔、孔板、气孔等)实现排氧。Since the steam pressure in the pressure chamber is relatively high, it can enter into the cooking chamber with relatively low pressure through a plurality of through holes of the orifice plate, thereby exhausting as much oxygen in the cooking chamber as possible. Wherein, the relative positions of the cooking cavity and the pressure cavity are not limited. The design of the oxygen exhaust device in this embodiment is based on the pressure difference of the gas to achieve oxygen exhaust through the specific structural design of the box (such as pressure chamber, orifice plate, air hole, etc.).
如图2所示,为本公开一些示例性实施例的蒸汽式烹饪设备200的主视图。该蒸汽式烹饪设备200主要包括箱体210、蒸汽发生装置220、蒸汽喷射装置230、蒸汽排送装置240和控制装置250。在该实施例中,蒸汽式烹饪设备200为前开门式蒸汽式烹饪设备,箱体210作为蒸汽式烹饪设备200的主体,位于外壳270内。As shown in FIG. 2 , it is a front view of a steam cooking device 200 according to some exemplary embodiments of the present disclosure. The steam cooking device 200 mainly includes a box body 210 , a steam generating device 220 , a steam injection device 230 , a steam exhausting device 240 and a control device 250 . In this embodiment, the steam cooking device 200 is a front-opening steam cooking device, and the box 210 is the main body of the steam cooking device 200 and is located in the casing 270 .
在本公开实施例中,关于上、下、左、右、顶、底、前、背等方位的描述,均是以蒸汽式烹饪设备200的通常放置状态作为参照,例如,定义设备或其部件的更加靠近操作者的一侧为前侧,更加远离操作者的一侧为背侧,定义设备或其部件的位于操作者左手边的一侧为左侧,位于操作者右手边的一侧为右侧,等等。In the embodiments of the present disclosure, descriptions about orientations such as up, down, left, right, top, bottom, front, back, etc., all refer to the normal placement state of the steam cooking device 200, for example, to define the device or its components The side closer to the operator is the front side, and the side farther away from the operator is the back side. Define the side of the equipment or its components on the left hand side of the operator as the left side, and the side on the right hand side of the operator as Right, wait.
如图2所示,箱体210包括通过孔板211间隔的烹饪腔212和压力腔213。烹饪腔212内可以设置支架(图中未示出)和/或托盘290等用于承载食物300的烹饪辅具。烹饪腔212的下部具有用于排出氧气的气孔2120(也即用于排出空气的气孔),该气孔2120可以位于烹饪腔212的底壁或者其中一个侧壁,如图中所示的背侧壁212c。As shown in FIG. 2 , the box body 210 includes a cooking cavity 212 and a pressure cavity 213 separated by an orifice plate 211 . A support (not shown in the figure) and/or a tray 290 and other cooking aids for carrying the food 300 may be arranged in the cooking cavity 212 . The bottom of the cooking cavity 212 has an air hole 2120 for discharging oxygen (that is, an air hole for discharging air), and the air hole 2120 can be located at the bottom wall of the cooking cavity 212 or one of the side walls, such as the back side wall as shown in the figure 212c.
压力腔213位于烹饪腔212的上方,蒸汽发生装置220产生的蒸汽向压力腔213输送(例如图中所示的分歧管路260)。孔板211包括将压力腔213与烹饪腔212连通的多个通孔2110,从而可以使得压力腔213内的蒸汽可以进入到压力相对较低的烹饪腔212内。例如,通过压力腔213供应的蒸汽从压力腔213的大致整个底面均匀地进入到烹饪腔212中。The pressure chamber 213 is located above the cooking chamber 212, and the steam generated by the steam generating device 220 is transported to the pressure chamber 213 (such as the branch pipeline 260 shown in the figure). The orifice plate 211 includes a plurality of through holes 2110 communicating the pressure cavity 213 with the cooking cavity 212 , so that the steam in the pressure cavity 213 can enter the relatively low pressure cooking cavity 212 . For example, the steam supplied through the pressure chamber 213 uniformly enters the cooking chamber 212 from substantially the entire bottom surface of the pressure chamber 213 .
在该实施例中,烹饪腔212的形状大致呈长方体形状,包括图中所示的左侧壁212a、右侧壁212b、背侧壁212c、底壁212d和由孔板211的下表面构成的顶壁212e。当蒸汽式烹饪设备200的前门关闭后,前门的内侧壁作为烹饪腔212的前侧壁。在本公开实施例中,箱体210例如为钣金箱体。In this embodiment, the shape of the cooking chamber 212 is substantially cuboid, including the left side wall 212a shown in the figure, the right side wall 212b, the back side wall 212c, the bottom wall 212d and the bottom wall formed by the lower surface of the orifice plate 211. Top wall 212e. When the front door of the steam cooking device 200 is closed, the inner side wall of the front door serves as the front side wall of the cooking cavity 212 . In the embodiment of the present disclosure, the box body 210 is, for example, a sheet metal box body.
蒸汽喷射装置230和蒸汽排送装置240在烹饪工作阶段均开启。蒸汽排送装置240,例如离心风机或其它负压装置,用于将烹饪腔212内的蒸汽向蒸汽喷射装置230输送。蒸汽喷射装置230用于以喷射的方式向烹饪腔212内喷射蒸汽,以使蒸汽快速包围烹饪辅具上的食物300,从而将食物300加热烹熟。Both the steam injection device 230 and the steam discharge device 240 are turned on during the cooking session. The steam discharge device 240 , such as a centrifugal fan or other negative pressure devices, is used to transport the steam in the cooking chamber 212 to the steam injection device 230 . The steam injection device 230 is used for injecting steam into the cooking cavity 212 in a spraying manner, so that the steam quickly surrounds the food 300 on the cooking aid, thereby heating and cooking the food 300 .
控制装置250用于实现蒸汽式烹饪设备200的自动控制,从而实现由排氧工作阶段向烹饪工作阶段的自动切换,具体为,在排氧工作阶段,控制装置250控制蒸汽发生装置220开启并且控制蒸汽排送装置240关闭,以及,在烹饪工作阶段,控制装置250控蒸汽排送装置240开启,也可以控制蒸汽发生装置220同时开启。可以理解的,在图2中,蒸汽发生装置220和控制装置250在蒸汽式烹饪设备200中的设置位置仅为示意,不代表其实际设置位置,具体设置位置可以根据需求灵活设计。The control device 250 is used to realize the automatic control of the steam cooking equipment 200, so as to realize the automatic switching from the oxygen exhausting working stage to the cooking working stage. The steam discharge device 240 is closed, and, in the cooking phase, the control device 250 controls the steam discharge device 240 to open, and can also control the steam generating device 220 to open simultaneously. It can be understood that in FIG. 2 , the installation positions of the steam generating device 220 and the control device 250 in the steam cooking device 200 are only schematic, and do not represent their actual installation positions. The specific installation positions can be flexibly designed according to requirements.
以下首先对本公开实施例蒸汽式烹饪设备200的工作过程和工作原理进行详细说明。The working process and working principle of the steam cooking device 200 in the embodiment of the present disclosure will be described in detail below.
如图3所示,在排氧工作阶段,蒸汽发生装置220产生的蒸汽500可以在进入压力腔213后通过孔板211上的多个通孔2110进入到烹饪腔212内。As shown in FIG. 3 , the steam 500 generated by the steam generating device 220 can enter the pressure chamber 213 and enter the cooking chamber 212 through a plurality of through holes 2110 on the orifice plate 211 during the oxygen exhausting working phase.
本公开的发明人在实现本公开实施例的过程中发现,烹饪腔212内在刚刚有蒸汽进入时,其内部空气的温度接近外部环境温度,密度约为1.2kg/m
3,而蒸汽的密度约为0.6kg/m
3。蒸汽和空气的密度差使得刚刚进入到烹饪腔212内的蒸汽会先浮于烹饪腔212的顶部区域,随着蒸汽500的不断进入,蒸汽500会将空气400向下推进,从而迫使空气 400逐渐从烹饪腔212下部的气孔2120排出。在整个空气排出的过程中,烹饪腔212内的气体密度呈正密度梯度,即气体的密度从上到下呈梯度增加,这样可以最大限度的减少蒸汽与空气的掺混,从而将空气尽可能多的排出,也就是将空气中的氧气尽可能多的排出,使烹饪腔212内的氧气浓度降低最低。
The inventors of the present disclosure found in the process of implementing the embodiments of the present disclosure that when steam enters the cooking cavity 212, the temperature of the air inside is close to the temperature of the external environment, and the density is about 1.2kg/m 3 , while the density of the steam is about It is 0.6kg/m 3 . The difference in density between the steam and the air makes the steam that has just entered the cooking chamber 212 first float on the top area of the cooking chamber 212, and as the steam 500 continues to enter, the steam 500 will push the air 400 downwards, thereby forcing the air 400 to gradually It is discharged from the air hole 2120 at the bottom of the cooking cavity 212. During the entire process of air discharge, the gas density in the cooking chamber 212 presents a positive density gradient, that is, the density of the gas increases in a gradient from top to bottom, which can minimize the mixing of steam and air, thereby as much as possible Exhaust, that is, exhaust the oxygen in the air as much as possible, so that the oxygen concentration in the cooking cavity 212 is reduced to the minimum.
图4A为本公开一些实施例中,蒸汽在进入烹饪腔后在几个不同时刻下的浓度分布仿真图。可以理解的,在烹饪腔中,蒸汽的浓度越大,则空气的浓度越小,空气中氧气的浓度也就越小。如图4A所示,在排氧过程中,蒸汽和空气的浓度分层清晰可见,两者的分界面仿佛活塞一样随着时间向下推进,直至空气充分排出。图4B为本公开发明人以相关技术中的一种蒸汽式烹饪设备做为对比例,在相同时间参数下得到的蒸汽浓度分布仿真图。可以看出,蒸汽式烹饪设备的工作过程中,烹饪腔内空气的浓度较大,蒸汽的浓度明显小于图4A中的蒸汽浓度,而且,蒸汽的分布也不够均匀,烹饪腔的中心区域的蒸汽浓度反而小于周边区域。Fig. 4A is a simulation diagram of concentration distribution of steam at several different moments after entering the cooking chamber in some embodiments of the present disclosure. It can be understood that in the cooking cavity, the greater the concentration of steam, the smaller the concentration of air, and the smaller the concentration of oxygen in the air. As shown in Figure 4A, during the oxygen exhaust process, the concentration stratification of steam and air is clearly visible, and the interface between the two is pushed down over time like a piston until the air is fully exhausted. FIG. 4B is a simulated graph of steam concentration distribution obtained by the inventors of the present disclosure using a steam cooking device in the related art as a comparison example under the same time parameters. It can be seen that during the working process of the steam cooking equipment, the concentration of air in the cooking cavity is relatively high, and the concentration of steam is obviously smaller than that in Fig. 4A, and the distribution of steam is not uniform enough, and the steam in the central area of the cooking cavity On the contrary, the concentration is lower than that of the surrounding area.
因此,本公开实施例提供的蒸汽式烹饪设备200,可以极大程度的降低烹饪腔212内的氧气含量,从而减少氧气与高温食物发生反应产生有害物质,满足人们对烹饪食物的健康需求。Therefore, the steam cooking device 200 provided by the embodiment of the present disclosure can greatly reduce the oxygen content in the cooking cavity 212 , thereby reducing the generation of harmful substances from the reaction between oxygen and high-temperature food, and meeting people's health needs for cooking food.
如图5所示,蒸汽排送装置240在排氧工作阶段结束之后进入到烹饪工作阶段。在该烹饪工作阶段,蒸汽排送装置240将烹饪腔212内的蒸汽500向蒸汽喷射装置230输送,使得蒸汽喷射装置230向烹饪腔212内喷射蒸汽500;与此同时,蒸汽发生装置220也可以继续通过压力腔213向烹饪腔212内补充蒸汽500。由于蒸汽是以喷射的方式注入烹饪腔212,因此,相比上述相关技术,蒸汽的流速大大提高,高速流动的蒸汽可以快速包围烹饪辅具上的食物,从而达到强化换热的效果,使得食物的烹饪时间大大缩短。As shown in FIG. 5 , the steam exhausting device 240 enters into the cooking working phase after the deoxygenating working phase ends. In this cooking phase, the steam delivery device 240 transports the steam 500 in the cooking cavity 212 to the steam injection device 230, so that the steam injection device 230 injects the steam 500 into the cooking cavity 212; meanwhile, the steam generating device 220 can also Continue to add steam 500 to the cooking chamber 212 through the pressure chamber 213 . Since the steam is injected into the cooking cavity 212 in the form of injection, the flow rate of the steam is greatly improved compared with the above-mentioned related technologies, and the high-speed flowing steam can quickly surround the food on the cooking aid, thereby achieving the effect of strengthening heat exchange, making the food The cooking time is greatly reduced.
如图6所示,为本公开一些实施例中,处于烹饪工作阶段的烹饪腔212内部沿纵向截面的蒸汽速度仿真云图。从图中可以看出,较高流速的蒸汽在到达例如托盘等烹饪辅具时,会与烹饪辅具产生撞击,然后被烹饪辅具表面改变方向而迅速沿着烹饪辅具的表面铺开,从而将烹饪辅具上的食物整体包围。另外,从图中也可以看出,较高流速的蒸汽主要集中在烹饪辅具的上方,也就是主要集中在食物的放置区域,这样,蒸汽在食物放置区域的温度相比其它区域更高,可以快速与食物进行热交换,达到缩短食物烹饪时间、提高烹饪效率的目的。As shown in FIG. 6 , in some embodiments of the present disclosure, the steam velocity simulation nephogram along the longitudinal section inside the cooking cavity 212 in the cooking working stage is shown. It can be seen from the figure that when the steam with a higher flow rate reaches the cooking aids such as trays, it will collide with the cooking aids, and then be changed direction by the surface of the cooking aids and quickly spread along the surface of the cooking aids. Thereby, the food on the cooking aid is surrounded as a whole. In addition, it can also be seen from the figure that the steam with a higher flow rate is mainly concentrated above the cooking aids, that is, it is mainly concentrated in the area where the food is placed. In this way, the temperature of the steam in the area where the food is placed is higher than that in other areas. It can quickly exchange heat with food to achieve the purpose of shortening food cooking time and improving cooking efficiency.
因此,本公开实施例提供的蒸汽式烹饪设备200,在满足人们对烹饪食物健康需求的前提下,还能够有效缩短食物烹饪的时间,提高烹饪的效率。Therefore, the steam cooking device 200 provided by the embodiment of the present disclosure can effectively shorten the cooking time of food and improve the cooking efficiency on the premise of meeting people's health needs for cooking food.
在本公开的一些实施例中,蒸汽式烹饪设备在排氧工作阶段的工作时长为第一预设时长,在烹饪工作阶段的工作时长为第二预设时长。其中,第一预设时长可以在设备出厂之前设定,第二预设时长根据蒸汽式烹饪设备的具体功能设计,既可以在设备出厂之前设定,也可以由用户根据烹饪需求选择设定。例如,在一个实施例中,用户选择启动蒸汽式烹饪设备的蒸蛋功能,第一预设时长为1分钟,第二预设时长为9分钟,经历第一预设时长后,烹饪腔内的氧气浓度已经足够低,在烹饪工作阶段经历第二预设时长,通过蒸汽喷射装置喷出的蒸汽气流,可以快速的将蛋蒸熟。In some embodiments of the present disclosure, the working time of the steam cooking device in the oxygen discharge working phase is a first preset time length, and the working time in the cooking working phase is a second preset time length. Wherein, the first preset duration can be set before the device leaves the factory, and the second preset duration can be set according to the specific function design of the steam cooking device, either before the device leaves the factory, or by the user according to cooking needs. For example, in one embodiment, the user chooses to start the egg steaming function of the steam cooking device. The first preset time length is 1 minute, and the second preset time length is 9 minutes. The oxygen concentration is low enough, and after the second preset period of time in the cooking stage, the steam ejected by the steam injection device can quickly steam the eggs.
在本公开的另一些实施例中,如图2所示,蒸汽式烹饪设备200还包括用于获取烹饪腔212内氧气浓度的氧气浓度检测装置280,氧气浓度检测装置280的探头曝露在烹饪腔212内,例如,设置在烹饪腔212的底部。前述的控制装置250还配置为,响应于氧气的浓度高于浓度阈值,控制开启排氧工作阶段及关闭烹饪工作阶段,在该实施例中,也即控制蒸汽发生装置220开启并且控制蒸汽排送装置240关闭;及,响应于氧气的浓度不高于浓度阈值,控制关闭排氧工作阶段及开启烹饪工作阶段,在该实施例中,也即控制蒸汽排送装置240开启,蒸汽发生装置220也可一并开启。In other embodiments of the present disclosure, as shown in FIG. 2 , the steam cooking device 200 further includes an oxygen concentration detection device 280 for obtaining the oxygen concentration in the cooking cavity 212, and the probe of the oxygen concentration detection device 280 is exposed in the cooking cavity. 212, for example, is set at the bottom of the cooking cavity 212. The aforementioned control device 250 is also configured to, in response to the concentration of oxygen being higher than the concentration threshold, control the opening of the oxygen exhausting working phase and the closing of the cooking working phase, in this embodiment, that is, control the opening of the steam generating device 220 and control the steam discharge The device 240 is closed; and, in response to the concentration of oxygen being not higher than the concentration threshold, the control closes the oxygen exhausting working phase and opens the cooking working phase, in this embodiment, that is, controlling the opening of the steam discharge device 240, and the steam generating device 220 also can be turned on together.
该实施例中,排氧工作阶段的经历时长由烹饪腔212内氧气的实际浓度来决定,因此,可以更为精准的控制烹饪腔212内氧气的浓度,从而实现更加充分的排氧。In this embodiment, the duration of the oxygen exhausting working phase is determined by the actual concentration of oxygen in the cooking cavity 212 , therefore, the concentration of oxygen in the cooking cavity 212 can be controlled more precisely, so as to achieve more sufficient oxygen exhausting.
在本公开的一些实施例中,控制装置250还配置为,在烹饪工作阶段,控制蒸汽发生装置220关闭或者控制蒸汽发生装置220的工作功率小于在排氧工作阶段的工作功率。由于蒸汽在烹饪工作阶段可以通过蒸汽排送装置240被循环利用,而且,如前所述,烹饪腔212内蒸汽的浓度也相对较高,因此,可以在烹饪工作阶段关闭蒸汽发生装置220,或者适当降低蒸汽发生装置220的工作功率,以降低设备的能耗。In some embodiments of the present disclosure, the control device 250 is further configured to control the steam generating device 220 to shut down or control the working power of the steam generating device 220 to be smaller than that in the oxygen exhausting working phase during the cooking working phase. Since the steam can be recycled through the steam discharge device 240 during the cooking phase, and, as mentioned above, the concentration of the steam in the cooking cavity 212 is relatively high, therefore, the steam generating device 220 can be closed during the cooking phase, or Properly reduce the working power of the steam generating device 220 to reduce the energy consumption of the equipment.
以下接着对本公开一些实施例蒸汽式烹饪设备200的结构设计做更进一步的详细说明。The structural design of the steam cooking device 200 in some embodiments of the present disclosure will be further described in detail below.
如图2和图7所示,在这些实施例中,压力腔213的蒸汽入口2130为两个,设于蒸汽式烹饪设备200的左右两侧。蒸汽发生装置220通过分歧管路260向两个蒸汽入口2130同时输送蒸汽,可以使蒸汽快速而且较为均衡的充满压力腔213。当然,蒸汽入口2130的数量不限制为两个,例如,还可以为一个或者多于两个。本公开对蒸汽入口2130的设置位置也不做特别限定,可以参考蒸汽发生器的设计位置进行相应的设计。As shown in FIG. 2 and FIG. 7 , in these embodiments, there are two steam inlets 2130 of the pressure chamber 213 , which are located on the left and right sides of the steam cooking device 200 . The steam generating device 220 simultaneously delivers steam to the two steam inlets 2130 through the branch pipeline 260 , so that the steam can fill the pressure chamber 213 quickly and evenly. Of course, the number of steam inlets 2130 is not limited to two, for example, there may be one or more than two. The present disclosure does not specifically limit the location of the steam inlet 2130 , which can be designed with reference to the design location of the steam generator.
如图8所示,在本公开的一些实施例中,孔板211包括第一区域211a和围绕第一区域211a的第二区域211b,多个通孔2110包括位于第一区域211a的多个第一通孔2110a 及位于第二区域211b的多个第二通孔2110b,其中,第一通孔2110a的排布密度大于第二通孔2110b的排布密度。蒸汽在压力腔213内,先到达第二区域211b的上方并且在该第二区域211b的切向流速(即沿孔板211切向的速度)较高,压强较小,然后再到达第一区域211a的上方并且在该第一区域211a的切向流速降低,压强增大。该实施例中,多个通孔2110采用中间密、周边疏的设计,可以在一定程度上降低蒸汽在第一区域211a上方的压力,从而有效改善因蒸汽压力差导致的回流,有利于蒸汽均匀的向烹饪腔212释放。As shown in FIG. 8, in some embodiments of the present disclosure, the orifice plate 211 includes a first region 211a and a second region 211b surrounding the first region 211a, and the plurality of through holes 2110 includes a plurality of second regions located in the first region 211a. A through hole 2110a and a plurality of second through holes 2110b located in the second region 211b, wherein the arrangement density of the first through holes 2110a is greater than the arrangement density of the second through holes 2110b. In the pressure chamber 213, the steam first reaches the top of the second area 211b, and the tangential flow velocity in the second area 211b (that is, the velocity along the tangential direction of the orifice 211) is relatively high, and the pressure is low, and then reaches the first area Above 211a and in this first region 211a the tangential flow velocity decreases and the pressure increases. In this embodiment, the plurality of through holes 2110 adopt a design with a dense center and a sparse periphery, which can reduce the pressure of the steam above the first region 211a to a certain extent, thereby effectively improving the backflow caused by the difference in steam pressure and facilitating the uniformity of the steam. released to the cooking cavity 212.
在本公开的另一个实施例中,针对多个通孔的设计也可以为,第一通孔和第二通孔的排布密度大致相同,但第一通孔的孔径大于第二通孔的孔径,该实施例也能够基于上述原理获得类似的技术效果。在本公开的又一个实施例中,上述针对多个通孔的疏密设计和孔径区别设计,也可以结合采用,从而达到类似的技术效果。In another embodiment of the present disclosure, the design for a plurality of through holes may also be that the arrangement density of the first through holes and the second through holes are approximately the same, but the diameter of the first through holes is larger than that of the second through holes. Aperture, this embodiment can also obtain similar technical effects based on the above principles. In yet another embodiment of the present disclosure, the above-mentioned density design and pore size difference design for multiple through holes may also be used in combination, so as to achieve similar technical effects.
当然,孔板上多个通孔的大小和排布密度并不局限于上述实施例,例如,孔板上的多个通孔也可以孔径相同,并且均匀分布。Of course, the size and arrangement density of the multiple through holes on the orifice plate are not limited to the above embodiments, for example, the multiple through holes on the orifice plate may also have the same diameter and be evenly distributed.
如图2所示,在使用蒸汽式烹饪设备200时,通常将食物300放置在烹饪腔212的中心区域,也即烹饪腔212的底壁212d的中间位置的正上方。如图5和图9所示,在本公开实施例中,蒸汽喷射装置230的数量为两个,两个蒸汽喷射装置230对称设置在烹饪腔212的中心区域的两侧,并且对称的朝向烹饪腔212的中心区域喷射蒸汽500,可以使得食物300周围的蒸汽更加均匀,从而进一步提高对食物300进行加热的效率。在本公开的其它实施例中,蒸汽喷射装置的数量还可以多于两个,并且分布在烹饪腔的中心区域的两侧。As shown in FIG. 2 , when using the steam cooking device 200 , the food 300 is usually placed in the central area of the cooking cavity 212 , that is, directly above the middle of the bottom wall 212 d of the cooking cavity 212 . As shown in Figures 5 and 9, in the disclosed embodiment, the number of steam injection devices 230 is two, and the two steam injection devices 230 are symmetrically arranged on both sides of the central area of the cooking cavity 212, and symmetrically directed towards the cooking chamber. The steam 500 sprayed from the central area of the cavity 212 can make the steam around the food 300 more uniform, thereby further improving the heating efficiency of the food 300 . In other embodiments of the present disclosure, there may be more than two steam injection devices, and they are distributed on both sides of the central area of the cooking chamber.
如图10所示,在这些实施例中,蒸汽排送装置240为离心风机,数量也为两个,并且与两个蒸汽喷射装置230一一对应设置。即,每个蒸汽排送装置240配置为将烹饪腔内的蒸汽500向对应的一个蒸汽喷射装置230输送。通过两个蒸汽排送装置240将蒸汽500一一对应的向两个蒸汽喷射装置230输送,可以提高烹饪腔内蒸汽的循环利用效率,使烹饪腔内的蒸汽保持较高的流速,从而缩短食物烹饪时间,提升烹饪的效率。As shown in FIG. 10 , in these embodiments, the steam ejection device 240 is a centrifugal fan, the number is also two, and the two steam injection devices 230 are provided in one-to-one correspondence. That is, each steam delivery device 240 is configured to deliver the steam 500 in the cooking cavity to a corresponding one of the steam injection devices 230 . The steam 500 is transported to the two steam injection devices 230 in one-to-one correspondence through the two steam discharge devices 240, which can improve the recycling efficiency of the steam in the cooking cavity, keep the steam in the cooking cavity at a high flow rate, and shorten the cooking time of the food. Cooking time, improve cooking efficiency.
本公开对蒸汽喷射装置和蒸汽排送装置的具体数量不做限定,例如,蒸汽排送装置的数量也可以为一个,通过专门设计的分歧管路同时向两个蒸汽喷射装置输送蒸汽。例如,蒸汽喷射装置的数量也可以为一个,设置在烹饪腔顶部的靠近背侧壁的位置。在一些实施例中,蒸汽排送装置为至少两个,每个蒸汽排送装置与一个或者更多个蒸汽喷射装置相连,从而向该一个或者更多个蒸汽喷射装置输送蒸汽。The present disclosure does not limit the specific quantity of the steam injection device and the steam discharge device. For example, the number of the steam discharge device may also be one, and the steam is delivered to the two steam injection devices simultaneously through a specially designed branch pipeline. For example, there can also be one steam injection device, which is arranged on the top of the cooking cavity near the back side wall. In some embodiments, there are at least two steam discharge devices, and each steam discharge device is connected to one or more steam injection devices, so as to deliver steam to the one or more steam injection devices.
如图9和图10所示,蒸汽排送装置240为设于烹饪腔212的背侧壁212c外侧的离心风机,烹饪腔212的背侧壁212c在与离心风机的进风侧2403相对区域具有多个栅孔2121(图9中蒸汽排送装置240被多个栅孔2121遮挡,因此仅以虚线示意)。离心风机利用高速旋转的叶轮2401将蒸汽500加速,然后减速、改变流向,使动能转换成势能(即气体的压力)。如图10所示,离心风机包括蜗壳2402和位于蜗壳2402内的叶轮2401。蒸汽500从离心风机的进风侧2403沿轴向进入蜗壳2402内,经过叶轮2401作用后流动方向改变为径向,然后从蜗壳2402的出风口2404排出,再进入蒸汽喷射装置230。在本公开的一些实施例中,蜗壳2402的出风口2404与蒸汽喷射装置230的蒸汽入口相连通。As shown in Figures 9 and 10, the steam exhausting device 240 is a centrifugal fan located outside the back side wall 212c of the cooking cavity 212, and the back side wall 212c of the cooking cavity 212 has a A plurality of grid holes 2121 (in FIG. 9 , the steam exhausting device 240 is blocked by the plurality of grid holes 2121 , so it is only shown by a dotted line). The centrifugal fan uses the high-speed rotating impeller 2401 to accelerate the steam 500, then decelerates, changes the flow direction, and converts kinetic energy into potential energy (ie, the pressure of the gas). As shown in FIG. 10 , the centrifugal fan includes a volute 2402 and an impeller 2401 inside the volute 2402 . The steam 500 enters the volute 2402 axially from the air inlet side 2403 of the centrifugal fan, changes the flow direction to the radial direction after the action of the impeller 2401 , then is discharged from the air outlet 2404 of the volute 2402 , and then enters the steam injection device 230 . In some embodiments of the present disclosure, the air outlet 2404 of the volute 2402 communicates with the steam inlet of the steam injection device 230 .
如图10所示,离心风机的蜗壳2402内还设有加热装置2405,用于对进入蜗壳2402的蒸汽500进行在加热。加热装置2405的具体类型和结构不限,例如可以如图中所示,为呈环形并且环绕在叶轮2401周侧的加热管。蒸汽500在蜗壳2402内经过加热装置2405加热后再通过蒸汽喷射装置230向烹饪腔喷射,可以进一步提高烹饪腔内蒸汽的温度,从而进一步提高烹饪的效率。As shown in FIG. 10 , the volute 2402 of the centrifugal fan is further provided with a heating device 2405 for reheating the steam 500 entering the volute 2402 . The specific type and structure of the heating device 2405 are not limited, for example, as shown in the figure, it may be a ring-shaped heating pipe surrounding the impeller 2401 . The steam 500 is heated by the heating device 2405 in the volute 2402 and then injected into the cooking chamber through the steam injection device 230, which can further increase the temperature of the steam in the cooking chamber, thereby further improving the cooking efficiency.
在本公开的其它实施例中,加热装置还可以设于蒸汽喷射装置内或者蒸汽排送装置与蒸汽喷射装置之间的蒸汽输送路径中。加热装置的数量也不限制为一个。In other embodiments of the present disclosure, the heating device may also be provided in the steam injection device or in the steam delivery path between the steam discharge device and the steam injection device. The number of heating devices is also not limited to one.
如图10所示,在本公开的一些实施例中,蒸汽喷射装置230包括:中心输送管2301和沿中心输送管2301的延伸方向设置的喷射结构2302,其中,中心输送管2301的输送末端(即中心输送管2301沿蒸汽500输送方向的末端,中心输送管2301内蒸汽500的输送方向如其中虚线箭头所示)封闭,并且,中心输送管2301的管腔横截面积沿着朝向输送末端的方向递减。中心输送管2301的具体形状不限,例如,其管腔的横截面形状可以为圆形、矩形或者梯形等等。例如,图10中所示的中心输送管2301,沿蒸汽500的输送方向,呈现先宽后窄的形状特点。As shown in FIG. 10, in some embodiments of the present disclosure, the steam injection device 230 includes: a central delivery pipe 2301 and an injection structure 2302 arranged along the extension direction of the central delivery pipe 2301, wherein the delivery end of the central delivery pipe 2301 ( That is, the end of the central delivery pipe 2301 along the delivery direction of the steam 500, the delivery direction of the steam 500 in the central delivery pipe 2301 is closed as shown by the dotted arrow), and the lumen cross-sectional area of the central delivery pipe 2301 is along the direction towards the delivery end. The direction is decreasing. The specific shape of the central delivery tube 2301 is not limited, for example, the cross-sectional shape of its lumen can be circular, rectangular or trapezoidal and so on. For example, the central conveying pipe 2301 shown in FIG. 10 has a shape characteristic of being wide first and then narrow along the conveying direction of the steam 500 .
在图10所示的实施例中,喷射结构2302包括沿中心输送管2301的延伸方向排列的多个喷嘴2302a,从而使得蒸汽500分别从多个喷嘴2302a喷出。In the embodiment shown in FIG. 10 , the injection structure 2302 includes a plurality of nozzles 2302 a arranged along the extension direction of the central delivery pipe 2301 , so that the steam 500 is ejected from the plurality of nozzles 2302 a respectively.
本公开的发明人在实现本公开实施例的过程中发现,如若中心输送管2301的管腔横截面积不变,根据伯努利原理,那么,蒸汽流场在下游(即,中心输送管2301的延伸方向上更加靠近中心输送管2301的输送末端的位置)的压强势必更大,从而使得从中心输送管2301下游喷出的蒸汽流速更高。在本公开实施例中,中心输送管2301的管腔横截面积沿着朝向输送末端的方向递减,这样,可以在一定程度上削弱蒸汽从中心输送管2301下游喷出的流速,从而使得,从蒸汽喷射装置230喷出蒸汽500的流速较为均匀。The inventors of the present disclosure found in the process of implementing the embodiments of the present disclosure that if the lumen cross-sectional area of the central delivery pipe 2301 is constant, according to Bernoulli's principle, then the steam flow field is downstream (that is, the central delivery pipe 2301 The position closer to the delivery end of the central delivery pipe 2301 in the extension direction of the central delivery pipe 2301) is bound to have a higher pressure, so that the flow rate of the steam ejected from the downstream of the central delivery pipe 2301 is higher. In the embodiment of the present disclosure, the lumen cross-sectional area of the central delivery pipe 2301 decreases gradually along the direction toward the delivery end, so that the flow velocity of the steam ejected from the downstream of the central delivery pipe 2301 can be weakened to a certain extent, so that, from The flow velocity of the steam 500 sprayed out by the steam injection device 230 is relatively uniform.
如图11所示,为蒸汽从图10所示实施例的蒸汽喷射装置230喷出的速度仿真云图。可以看出,采用上述设计的蒸汽喷射装置230,可以使蒸汽沿着垂直于中心输送管2301的方向、以较为均匀的流速喷射到烹饪腔内,从而实现对食物的均匀、快速加热。As shown in FIG. 11 , it is a simulation cloud diagram of the velocity of steam ejected from the steam injection device 230 of the embodiment shown in FIG. 10 . It can be seen that, with the steam injection device 230 designed above, the steam can be injected into the cooking chamber at a relatively uniform flow rate along the direction perpendicular to the central delivery pipe 2301, thereby achieving uniform and rapid heating of the food.
喷射结构2302不限于采用上述喷嘴2302a的设计。如图12所示,在本公开的另一些实施例中,喷射结构2302还可以为百叶,百叶的多个叶片2302b沿中心输送管2301的延伸方向延伸,从而使得蒸汽500从相邻叶片2302b之间的缝隙喷出。如图13所示,在本公开的又一些实施例中,喷射结构2302还可以为开设于中心输送管2301管壁的狭缝2302c,从而使得蒸汽500可以从狭缝2302c中喷出。 Spray configuration 2302 is not limited to the design employing nozzle 2302a described above. As shown in FIG. 12 , in other embodiments of the present disclosure, the injection structure 2302 can also be a louver, and a plurality of blades 2302b of the louver extend along the extension direction of the central delivery pipe 2301, so that the steam 500 flows from between adjacent blades 2302b. Squirt out from the gaps in between. As shown in FIG. 13 , in some other embodiments of the present disclosure, the injection structure 2302 can also be a slit 2302c opened on the wall of the central delivery pipe 2301 , so that the steam 500 can be sprayed out from the slit 2302c.
本公开对蒸汽喷射装置230和蒸汽排送装置240的具体设置位置不做限定。两个蒸汽喷射装置230可以设于烹饪腔的顶部,也可以设于烹饪腔的周侧。蒸汽排送装置240可以设于烹饪腔的背侧,也可以设于烹饪腔的左侧壁或右侧壁。The present disclosure does not limit the specific installation positions of the steam injection device 230 and the steam discharge device 240 . The two steam injection devices 230 can be arranged on the top of the cooking chamber, and can also be arranged on the peripheral side of the cooking chamber. The steam exhausting device 240 can be arranged on the back side of the cooking cavity, or on the left side wall or the right side wall of the cooking cavity.
如图2和图8所示,在这些实施例中,两个蒸汽排送装置240设于烹饪腔212的背侧壁212c的外侧,其中一个蒸汽喷射装置230固定设置在顶壁212e的与左侧壁212a毗邻的边缘区域,另一个蒸汽喷射装置230固定设置在顶壁212e的与右侧壁212b毗邻的边缘区域。两个蒸汽喷射装置230相对设置并且以倾斜向下的方向朝向烹饪腔212的中心区域喷射蒸汽。As shown in Figure 2 and Figure 8, in these embodiments, two steam discharge devices 240 are arranged on the outside of the back side wall 212c of the cooking cavity 212, wherein a steam injection device 230 is fixedly arranged on the top wall 212e and the left side. In the edge area adjacent to the side wall 212a, another steam injection device 230 is fixedly arranged on the edge area of the top wall 212e adjacent to the right side wall 212b. The two steam injection devices 230 are arranged oppositely and inject steam toward the central area of the cooking cavity 212 in an obliquely downward direction.
如图14所示,在本公开的另一些实施例中,两个蒸汽排送装置240设于烹饪腔212的背侧壁212c的外侧,其中一个蒸汽喷射装置230固定设置在左侧壁212a的与顶壁212e毗邻的边缘区域,另一个蒸汽喷射装置230固定设置在右侧壁212b的与顶壁212e毗邻的边缘区域。两个蒸汽喷射装置230相对设置并且以倾斜向下的方向朝向烹饪腔212的中心区域喷射蒸汽。As shown in FIG. 14 , in some other embodiments of the present disclosure, two steam discharge devices 240 are arranged on the outside of the back side wall 212c of the cooking chamber 212, and one steam injection device 230 is fixedly arranged on the left side wall 212a. In the edge area adjacent to the top wall 212e, another steam injection device 230 is fixedly arranged on the edge area of the right side wall 212b adjacent to the top wall 212e. The two steam injection devices 230 are arranged oppositely and inject steam toward the central area of the cooking cavity 212 in an obliquely downward direction.
如图15所示,在本公开的又一些实施例中,两个蒸汽排送装置240设于烹饪腔212的背侧壁212c的外侧,其中一个蒸汽喷射装置230固定设置在背侧壁212c的与左侧壁212a毗邻的边缘区域,另一个蒸汽喷射装置230固定设置在背侧壁212c的与右侧壁212b毗邻的边缘区域。两个蒸汽喷射装置230同时朝向烹饪腔212的中心区域喷射蒸汽。两个蒸汽喷射装置230例如分别为图12所示的百叶式的蒸汽喷射装置。As shown in FIG. 15 , in some other embodiments of the present disclosure, two steam discharge devices 240 are arranged on the outside of the back side wall 212c of the cooking cavity 212, and one steam injection device 230 is fixedly arranged on the back side wall 212c. In the edge region adjacent to the left side wall 212a, a further steam injection device 230 is fixedly arranged in the edge region of the rear side wall 212c adjacent to the right side wall 212b. The two steam injection devices 230 inject steam toward the central area of the cooking cavity 212 at the same time. The two steam injection devices 230 are, for example, louver-type steam injection devices shown in FIG. 12 .
综上,本公开实施例提供的蒸汽式烹饪设备,在满足人们对烹饪食物健康需求的前提下,还能够有效缩短食物烹饪的时间,提高烹饪的效率。To sum up, the steam cooking equipment provided by the embodiments of the present disclosure can effectively shorten the cooking time of food and improve the cooking efficiency under the premise of satisfying people's health needs for cooking food.
应当理解的是,在本说明书中,术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、 “顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系或尺寸为基于附图所示的方位或位置关系或尺寸,使用这些术语仅是为了便于描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,并且因此不能理解为对本申请的保护范围的限制。It should be understood that in this specification the terms "central", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear" , "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", " The orientation or positional relationship or size indicated by "radial direction", "circumferential direction" and so on are based on the orientation or positional relationship or size shown in the drawings, and these terms are used only for the convenience of description, not to indicate or imply the referred device or Elements must have certain orientations, be constructed and operate in certain orientations, and therefore should not be construed as limiting the scope of the application.
此外,术语“第一”、“第二”、“第三”等仅用于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”、“第三”的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中,“多个”的含义是两个或两个以上,除非另有明确具体的限定。In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only, and should not be interpreted as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first", "second" and "third" may explicitly or implicitly include one or more of these features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.
在本申请中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接,还可以是通信;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本申请中的具体含义。In this application, terms such as "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, it may be a fixed connection or a detachable connection, unless otherwise clearly specified and limited. , or integrated; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components . Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.
在本申请中,除非另有明确的规定和限定,第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触,也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且,第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方,或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方,或仅仅表示第一特征水平高度小于第二特征。In this application, unless otherwise expressly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.
本说明书提供了能够用于实现本申请的许多不同的实施方式或例子。应当理解的是,这些不同的实施方式或例子完全是示例性的,并且不用于以任何方式限制本申请的保护范围。本领域技术人员在本申请的说明书的公开内容的基础上,能够想到各种变化或替换,这些都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所附权利要求所限定的保护范围为准。This specification provides many different embodiments or examples that can be used to implement the application. It should be understood that these different implementations or examples are purely illustrative, and are not intended to limit the protection scope of the present application in any way. Those skilled in the art can conceive of various changes or substitutions on the basis of the disclosure content in the description of the present application, and these should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be defined by the appended claims.
Claims (16)
- 一种蒸汽式烹饪设备,包括:A steam cooking device comprising:箱体,包括烹饪腔,所述烹饪腔具有气孔;The box body includes a cooking cavity, and the cooking cavity has air holes;排氧装置,配置为通过所述气孔排出所述烹饪腔内的氧气;an oxygen discharge device configured to discharge oxygen in the cooking cavity through the air holes;蒸汽喷射装置,配置为向所述烹饪腔内喷射蒸汽;及a steam injection device configured to inject steam into the cooking cavity; and控制装置,配置为控制所述蒸汽喷射装置在所述排氧装置工作结束后启动。A control device configured to control the steam injection device to start after the oxygen exhaust device finishes working.
- 根据权利要求1所述的蒸汽式烹饪设备,其中,The steam cooking device according to claim 1, wherein,所述箱体还包括压力腔,所述压力腔与所述烹饪腔通过孔板间隔,所述孔板包括将所述压力腔与所述烹饪腔连通的多个通孔;The box body also includes a pressure cavity, the pressure cavity is separated from the cooking cavity by an orifice plate, and the orifice plate includes a plurality of through holes communicating the pressure cavity with the cooking cavity;所述蒸汽式烹饪设备还包括:The steam cooking device also includes:蒸汽发生装置,配置为向所述压力腔内输送蒸汽和/或向所述蒸汽喷射装置输送蒸汽;及a steam generating device configured to deliver steam into the pressure chamber and/or deliver steam to the steam injection device; and蒸汽排送装置,配置为将所述烹饪腔内的蒸汽向所述蒸汽喷射装置输送;a steam delivery device configured to deliver the steam in the cooking cavity to the steam injection device;所述蒸汽式烹饪设备的工作过程包括排氧工作阶段和位于所述排氧工作阶段之后的烹饪工作阶段,在所述排氧工作阶段,所述控制装置控制所述蒸汽发生装置开启并且控制所述蒸汽排送装置关闭,以使所述烹饪腔内的氧气通过所述气孔排出,及,在所述烹饪工作阶段,所述控制装置控制所述蒸汽排送装置开启,以使蒸汽通过所述蒸汽喷射装置向所述烹饪腔内喷射。The working process of the steam cooking equipment includes an oxygen exhausting working stage and a cooking working stage after the oxygen exhausting working stage. In the oxygen exhausting working stage, the control device controls the opening of the steam generating device and controls all The steam discharge device is closed, so that the oxygen in the cooking cavity is discharged through the air hole, and, in the cooking working stage, the control device controls the steam discharge device to be opened, so that the steam passes through the The steam injection device injects into the cooking cavity.
- 根据权利要求2所述的蒸汽式烹饪设备,其中,The steam cooking device according to claim 2, wherein,所述气孔位于所述烹饪腔的下部,并且所述压力腔位于所述烹饪腔的上方,使得蒸汽从所述压力腔进入所述烹饪腔中。The air hole is located at the lower part of the cooking cavity, and the pressure cavity is located above the cooking cavity, so that steam enters the cooking cavity from the pressure cavity.
- 根据权利要求1所述的蒸汽式烹饪设备,其中,The steam cooking device according to claim 1, wherein,所述蒸汽喷射装置为至少两个,至少两个所述蒸汽喷射装置分别设置在所述烹饪腔的中心区域的两侧。There are at least two steam injection devices, and the at least two steam injection devices are respectively arranged on both sides of the central area of the cooking cavity.
- 根据权利要求4所述的蒸汽式烹饪设备,其中,The steam cooking device according to claim 4, wherein,所述蒸汽喷射装置包括:中心输送管和沿所述中心输送管的延伸方向设置的喷射结构,其中,所述中心输送管的输送末端封闭,并且,所述中心输送管的管腔横截面积沿着朝向所述输送末端的方向递减。The steam injection device includes: a central delivery pipe and an injection structure arranged along the extension direction of the central delivery pipe, wherein the delivery end of the central delivery pipe is closed, and the lumen cross-sectional area of the central delivery pipe is Decreases in the direction towards the delivery end.
- 根据权利要求5所述的蒸汽式烹饪设备,其中,The steam cooking device according to claim 5, wherein,所述喷射结构包括沿所述中心输送管的延伸方向排列的多个喷嘴;或者The spray structure includes a plurality of nozzles arranged along the extension direction of the central delivery pipe; or所述喷射结构为开设于所述中心输送管的管壁、且沿所述中心输送管的延伸方向延伸的狭缝。The injection structure is a slit opened on the pipe wall of the central conveying pipe and extending along the extending direction of the central conveying pipe.
- 根据权利要求4所述的蒸汽式烹饪设备,其中,The steam cooking device according to claim 4, wherein,至少两个所述蒸汽喷射装置设于所述烹饪腔的顶部;或者at least two of said steam injection devices are located on top of said cooking chamber; or至少两个所述蒸汽喷射装置设于所述烹饪腔的周侧。At least two of the steam injection devices are arranged on the peripheral side of the cooking cavity.
- 根据权利要求4所述的蒸汽式烹饪设备,其中,The steam cooking device according to claim 4, wherein,所述蒸汽排送装置为至少两个,每个所述蒸汽排送装置与一个或者更多个所述蒸汽喷射装置相连。There are at least two steam discharge devices, each of which is connected to one or more steam injection devices.
- 根据权利要求2所述的蒸汽式烹饪设备,还包括:The steam cooking device according to claim 2, further comprising:加热装置,设于所述蒸汽排送装置、所述蒸汽喷射装置、所述蒸汽排送装置与所述蒸汽喷射装置之间的蒸汽输送路径中的至少一个。A heating device is provided in at least one of the steam discharge device, the steam injection device, and the steam delivery path between the steam discharge device and the steam injection device.
- 根据权利要求9所述的蒸汽式烹饪设备,其中,The steam cooking device according to claim 9, wherein,所述蒸汽排送装置为离心风机,所述加热装置呈环形并且环绕在所述离心风机的叶轮的周侧。The steam exhausting device is a centrifugal fan, and the heating device is annular and surrounds the impeller of the centrifugal fan.
- 根据权利要求2所述的蒸汽式烹饪设备,其中,The steam cooking device according to claim 2, wherein,所述压力腔的蒸汽入口至少为两个,所述蒸汽发生装置通过分歧管路向所述压力腔的至少两个所述蒸汽入口输送蒸汽。There are at least two steam inlets in the pressure chamber, and the steam generating device sends steam to at least two of the steam inlets in the pressure chamber through branch pipelines.
- 根据权利要求2所述的蒸汽式烹饪设备,其中,The steam cooking device according to claim 2, wherein,所述排氧工作阶段和所述烹饪工作阶段之间的时间间隔不小于零。The time interval between the deoxygenation working phase and the cooking working phase is not less than zero.
- 根据权利要求2所述的蒸汽式烹饪设备,其中,The steam cooking device according to claim 2, wherein,所述蒸汽式烹饪设备在所述排氧工作阶段的工作时长为第一预设时长,所述蒸汽式烹饪设备在所述烹饪工作阶段的工作时长为第二预设时长。The working duration of the steam cooking device in the oxygen-exhausting working phase is a first preset duration, and the working duration of the steam cooking device in the cooking working phase is a second preset duration.
- 根据权利要求2所述的蒸汽式烹饪设备,还包括:The steam cooking device according to claim 2, further comprising:氧气浓度检测装置,配置为获取所述烹饪腔内氧气的浓度;an oxygen concentration detection device configured to acquire the concentration of oxygen in the cooking cavity;所述控制装置还配置为,响应于所述烹饪腔内氧气的浓度高于浓度阈值,控制开启所述排氧工作阶段及关闭所述烹饪工作阶段;及,响应于所述烹饪腔内氧气的浓度不高于浓度阈值,控制关闭所述排氧工作阶段及开启所述烹饪工作阶段。The control device is further configured to, in response to the concentration of oxygen in the cooking cavity being higher than a concentration threshold, control the opening of the oxygen discharge working phase and the closing of the cooking working phase; and, in response to the concentration of oxygen in the cooking cavity When the concentration is not higher than the concentration threshold, the oxygen exhausting working stage is controlled to be closed and the cooking working stage is turned on.
- 根据权利要求2所述的蒸汽式烹饪设备,其中,所述控制装置还配置为,在所述烹饪工作阶段,控制所述蒸汽发生装置关闭,或者控制所述蒸汽发生装置的工作功率小于在所述排氧工作阶段的工作功率。The steam cooking device according to claim 2, wherein the control device is further configured to, in the cooking phase, control the steam generating device to be closed, or control the working power of the steam generating device to be less than The working power of the deoxygenation working phase is described.
- 根据权利要求1至15中任一项所述的蒸汽式烹饪设备,其中,所述蒸汽式烹饪设备包括蒸箱、蒸烤一体机、微蒸一体机或微蒸烤一体机。The steam cooking device according to any one of claims 1 to 15, wherein the steam cooking device comprises a steam box, an integrated steam-oven machine, an integrated micro-steamer or an integrated micro-steamer-oven machine.
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