CN219613598U - Superheated steam device for cooking utensil - Google Patents

Abstract

The utility model discloses a superheated steam device for a cooking utensil, which comprises a water containing disc and a water isolation cover, wherein the water containing disc and the water isolation cover are enclosed to form a steam cavity, the water isolation cover is also provided with an air outlet for discharging steam, the steam cavity is provided with a boiling region and a superheating region which are communicated, the superheating region is arranged between the boiling region and the air outlet, a first heating element for heating the boiling region is arranged below the steam cavity, and a second heating element for heating the superheating region is arranged above the steam cavity. The superheated steam device for the cooking utensil can solve the problems that the heating efficiency is low and the taste of food is affected when the steam device of the existing cooking utensil is used for cooking.

Description

Superheated steam device for cooking utensil

Technical Field

The utility model relates to the technical field of household appliances, in particular to a superheated steam device for a cooking utensil.

Background

In the existing cooking utensil, a steam device is generally arranged to generate steam and cook food by utilizing the steam, the existing steam device generally comprises a water containing disc and a water isolation cover, the water containing disc and the water isolation cover are enclosed to form a steam cavity, the water isolation cover is further provided with an air outlet for discharging the steam, and the steam is generated in the steam cavity and is discharged to a cooking cavity through the air outlet to realize steam cooking.

However, the saturated steam temperature generated by the steam device in the prior art is relatively low, the rate of heating and curing food is slow, and the saturated steam forms a large amount of condensed water drops on the surface of the food when the food is heated, so that the taste of the cooked food is seriously affected, and meanwhile, a barrier is formed between an external heat source and the food, so that the heating efficiency of the food is seriously affected.

Disclosure of Invention

The utility model aims to provide a superheated steam device for a cooking appliance, which is used for solving the problems that the heating efficiency is low and the taste of food is affected when the steam device of the existing cooking appliance is used for cooking.

In order to achieve the above purpose, the utility model provides a superheated steam device for a cooking utensil, which comprises a water containing disc and a water isolation cover, wherein the water containing disc and the water isolation cover are enclosed to form a steam cavity, the water isolation cover is also provided with an air outlet for discharging steam, the steam cavity is provided with a boiling region and a superheating region which are communicated, the superheating region is arranged between the boiling region and the air outlet, the boiling region is positioned below the superheating region, a first heating element for heating the boiling region is arranged below the steam cavity, and a second heating element for heating the superheating region is arranged above the steam cavity.

In this way, the steam cavity is provided with the boiling region and the superheating region which are communicated, the superheating region is arranged between the boiling region and the air outlet, the boiling region is positioned below the superheating region, the first heating element for heating the boiling region is arranged below the steam cavity, the second heating element for heating the superheating region is arranged above the steam cavity, the first heating element is used for heating water in the boiling region to generate saturated steam, then the saturated steam flows into the superheating region and is heated by the second heating element to generate superheated steam in the superheating region, and finally the superheated steam is discharged from the air outlet to the cooking cavity for cooking, and as the temperature of the generated superheated steam is greatly improved compared with that of the saturated steam, the humidity is lower, not only can the food curing rate be greatly improved, but also condensed water beads can be prevented from being formed on the surface of food, and the mouthfeel after the food cooking is prevented from being influenced; in addition, the superheated steam device is simple in structure, can conveniently and rapidly generate superheated steam for cooking, and is convenient to install in various cooking appliances for heating.

In a preferred embodiment of the superheated steam device for a cooking appliance, the top of the water-proof cover is provided with a recess, the recess and the side wall of the water-proof cover enclose to form a superheated zone, and the second heating element is arranged in the superheated zone and surrounds the recess.

So, through being equipped with the depressed part at the water proof cover top, the depressed part encloses with the water proof cover lateral wall and closes and form the overheated district, and the second heating piece is located in the overheated district and is encircleed the depressed part setting, utilizes the depressed part to the superheated steam water conservancy diversion for saturated steam can fully be heated by the second heating piece at the in-process that flows along the depressed part outer wall and generate superheated steam, guarantees superheated steam's generation efficiency.

In a preferred implementation of the superheated steam device for a cooking appliance, the air outlets are multiple and spaced apart from the bottom wall of the recess, or the air outlets are multiple and spaced apart from the outer side wall of the water-proof cover.

Therefore, through the arrangement of the air outlets, the plurality of air outlets are distributed on the bottom wall of the concave part at intervals, or the plurality of air outlets are distributed on the outer side wall of the waterproof cover at intervals, so that superheated steam can flow along the inner wall of the waterproof cover for a certain distance and then be discharged from the air outlet holes, the heating time of the superheated steam is ensured, and the generation efficiency of the superheated steam is improved.

In a preferred implementation of the superheated steam device for a cooking appliance, the bottom wall of the water tray is concave downwards to form a containing groove, and the water-proof cover is covered in the containing groove to form a steam cavity in a surrounding manner.

So, form the holding tank through the diapire indent at the flourishing water tray, the holding tank is located to the water proof cover to enclose and close and form the steam chamber, make the holding tank play stable spacing effect to the water proof cover, in addition, when the in-process steam chamber inside water that the steam chamber produced steam reduces, because the holding tank is less than the rest bottom surfaces of flourishing water tray, make the outside hydroenergy of holding tank constantly flow into the holding tank, in order to mend water to the steam chamber, take place the dry combustion method after preventing that steam intracavity water from taking place the dry combustion method and causing the potential safety hazard.

In a preferred implementation of the superheated steam device for a cooking appliance, the outer side wall of the water-barrier cover is provided with at least one pressure stabilizing hole to communicate the steam chamber with the outside of the water-barrier cover.

Therefore, when water outside the waterproof cover boils to generate steam, the steam is led into the steam cavity inside the waterproof cover along the pressure stabilizing holes so as to balance the air pressure inside and outside the waterproof cover.

In a preferred embodiment of the superheated steam device for a cooking appliance, a flow guide is arranged between the superheating region and the boiling region, and is provided with a gas-guiding hole which communicates the superheating region with the boiling region.

Therefore, the guide piece is arranged between the overheating zone and the boiling zone, and is provided with the air guide hole communicated with the overheating zone and the boiling zone, so that the inside of the water-proof cover is divided into the overheating zone positioned above and the boiling zone positioned below, the space inside the water-proof cover is divided by the guide piece, saturated steam is generated by the boiling zone, superheated steam is generated by the overheating zone, the zonal heating of the steam is realized, and the generation rate of the superheated steam is ensured.

In a preferred embodiment of the superheated steam device for a cooking appliance, the flow guide element is provided with a projection projecting towards the superheating area, the interior of the projection forming a gas guide chamber above the water surface of the boiling area, the gas guide opening being provided on the top surface of the projection.

So, be equipped with towards the bellying of superheating area protruding through the water conservancy diversion spare, the inside air guide chamber that is located boiling area surface of water top that forms of bellying, the bellying top surface is located to the air guide hole, utilizes the bellying to steam water conservancy diversion, guarantees that saturated steam is stable to be carried to the superheating area and heats, improves superheated steam's generation rate.

In a preferred embodiment of the superheated steam device for a cooking appliance, the flow guide is provided with a projection projecting towards the boiling region, and the air-guide opening is provided in a side wall of the projection.

So, be equipped with towards bellied bellying in boiling district through water conservancy diversion spare, the bellying lateral wall is located to the gas vent for the bellying occupies the partial space in boiling district, reduces the water yield in boiling district, realizes the quick boiling in boiling district, accelerates the generation rate of saturated steam, further accelerates the generation rate of superheated steam.

In a preferred embodiment of the superheated steam device for a cooking appliance, the flow guide element is provided with a mounting hole, in which the second heating element is arranged to heat the superheating and boiling areas simultaneously.

So, through being equipped with the mounting hole at the water conservancy diversion spare, the second heating spare wears to locate in the mounting hole to heat overheated district and boiling district simultaneously, make the second heating spare can assist first heating spare to heat boiling district, improve the speed that boiling district produced saturated steam, thereby improve the generating rate of superheated steam.

In a preferred embodiment of the superheated steam device for a cooking appliance, the water-barrier cover is detachably connected to the water-containing pan, and the deflector is detachably connected to the water-barrier cover.

Therefore, the water-proof cover is detachably connected with the water containing disc, the guide piece is detachably connected with the water-proof cover, the guide piece and the water containing disc are convenient to detach and separate, and cleaning and maintenance are convenient.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a cross-sectional view of a superheated steam unit according to a first embodiment of the present utility model;

FIG. 2 is an exploded view of the superheated steam unit of FIG. 1;

FIG. 3 is a schematic view of the water shield of FIG. 1;

FIG. 4 is a cross-sectional view of a superheated steam unit according to a second embodiment of the present utility model;

FIG. 5 is a schematic view of the superheated steam unit of FIG. 4 without a water shield;

FIG. 6 is a schematic structural diagram of a deflector in a third embodiment of the present utility model;

fig. 7 is a bottom view of a water tray according to a third embodiment of the present utility model;

fig. 8 is a cross-sectional view of a superheated steam unit according to a third embodiment of the present utility model.

Reference numerals illustrate:

100. a water tray; 110. a receiving groove; 200. a water-blocking cover; 210. a steam chamber; 220. an air outlet; 211. a boiling zone; 212. a superheating area; 213. an air guide cavity; 230. a recessed portion; 240. a pressure stabilizing hole; 300. a first heating member; 400. a second heating member; 500. a flow guide; 510. an air guide hole; 520. a boss; 530. and (5) mounting holes.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Example 1

As shown in fig. 1 to 2, the present utility model provides a superheated steam device for a cooking appliance, comprising a water tray 100 and a water-proof cover 200, wherein the water tray 100 and the water-proof cover 200 are enclosed to form a steam cavity 210, the water-proof cover 200 is further provided with an air outlet 220 for discharging steam, the steam cavity 210 is provided with a boiling zone 211 and a superheating zone 212 which are communicated, the superheating zone 212 is arranged between the boiling zone 211 and the air outlet 220, the boiling zone 211 is positioned below the superheating zone 212, a first heating element 300 for heating the boiling zone 211 is arranged below the steam cavity 210, and a second heating element 400 for heating the superheating zone 212 is arranged above the steam cavity 210.

It will be appreciated that the liquid in saturation is referred to as a saturated liquid and its corresponding vapour is saturated vapour, but initially is only wet saturated vapour and is dry saturated vapour after the water in the saturated water has evaporated completely. The process temperature of the steam from unsaturated to wet saturated dry saturated is not increased (the wet saturated to dry saturated temperature is kept unchanged), and the temperature of the dry saturated steam is increased to be overheated steam when the dry saturated steam is continuously heated under the condition of constant pressure. Therefore, the temperature of the saturated steam is only 100 ℃, and the temperature of the superheated steam is far beyond the temperature of the saturated steam, and can reach about 300 ℃. That is, the superheated steam has a higher temperature, a higher heat quantity and a larger specific volume, and is effective in cooking and heating.

Specifically, the water-proof cover 200 separates a part of water in the middle of the water-containing tray 100, and the first heating element 300 is attached to the bottom wall of the water-containing tray 100 at a position corresponding to the water-proof cover 200, so as to heat the water in the steam cavity 210 inside the water-proof cover 200, so that the water in the steam cavity 210 is heated to generate saturated steam. The generated saturated steam rises in the steam chamber 210 until flowing into contact with the second heating member 400, is then heated by the second heating member 400 to generate superheated steam, and is finally discharged from the air outlet 220 on the waterproof cover 200 to the cooking chamber outside the waterproof cover 200 to heat the food.

It can be understood that the cooking appliance in the embodiment of the present utility model may be any cooking appliance capable of performing cooking or auxiliary heating by using steam, such as an air fryer, a steamer, a stewpot, an oven, etc., and the present utility model is described by taking the cooking appliance as an air fryer as an example, and in addition, the following experiments are performed by the present inventors, which show good effects of the superheated steam device in the embodiment of the present utility model when applied in the air fryer, specifically as follows:

the experimental content of the experiment is that two air fryers with the same model are used for cooking the same food materials, one of the air fryers is additionally provided with the superheated steam device in the embodiment of the utility model, after the end, the degreasing rate and the weightlessness rate of the food materials are measured and calculated, and the cooking effect is compared by comparing the degreasing rate and the weightlessness rate of the food materials after the two air fryers cook. The experimental equipment adopted is as follows: contact voltage regulator, electric parameter meter, digital thermometer, temperature probe, digital stopwatch. In this experiment, two air fryers were placed on a platform with an ambient temperature of 20 c for cooking.

The specific comparison experiment process of the experiment comprises the following steps: placing two chicks with the weight of about 1KG (m) into two air fryers (respectively called a superheated steam fryer and a common air fryer), adjusting the cooking temperature to be 200 ℃ and the cooking time to be 20 minutes, starting the machine and ending the machine; after cooking, respectively weighing the residual grease m1 in the superheated steam fryer and the common air fryer and the weight m2 of the roasted chick, wherein the degreasing rate is 100 percent; weight loss ratio= (m-m 2/m) 100%. The degreasing rate and the weightlessness rate of the food materials cooked by the two air fryers are compared.

After cooking, the degreasing rate of the chicks cooked by the superheated steam fryer is 7.62%, the weight loss rate of the chicks cooked by the common fryer is 21.22%, the degreasing rate of the chicks cooked by the common fryer is 4.07%, the weight loss rate of the chicks is 14.48%, and compared with the method, the degreasing rate of the chicks cooked by the superheated steam fryer is 87.12%, and the weight loss rate of the chicks cooked by the common fryer is 46.55%.

According to statistical data, the two air fryers are both adjusted to the cooking temperature of 200 ℃ and the cooking time of 20 minutes to cook, and the superheated steam air fryer provided with the superheated steam device in the embodiment of the utility model has higher degreasing rate and weight loss rate of food after cooking.

Thus, the experimental conclusion was: the superheated steam generated by the superheated steam device is used for cooking, and the cooking effect of the superheated steam on food materials is obviously improved.

In this way, by arranging the boiling region 211 and the superheating region 212 which are communicated with each other in the steam cavity 210, arranging the superheating region 212 between the boiling region 211 and the air outlet 220, arranging the first heating element 300 for heating the boiling region 211 below the steam cavity 210, arranging the second heating element 400 for heating the superheating region 212 above the steam cavity 210, heating water in the boiling region 211 by using the first heating element 300 to generate saturated steam, then enabling the saturated steam to flow into the superheating region 212 and be heated by the second heating element 400 in the superheating region 212 to generate superheated steam, and finally discharging the superheated steam from the air outlet 220 to the cooking cavity for cooking, wherein the temperature of the generated superheated steam is greatly improved compared with that of the saturated steam, the humidity is lower, so that condensation water drops can be prevented from being formed on the surface of food while the food cooking rate is greatly improved, and the influence on the taste of the cooked food is avoided; in addition, the superheated steam device is simple in structure, can conveniently and rapidly generate superheated steam for cooking, and is convenient to install in various cooking appliances for heating.

In a preferred implementation of the superheated steam device for a cooking appliance, as shown in fig. 3, a recess 230 is formed at the top of the waterproof cover 200, the recess 230 and the sidewall of the waterproof cover 200 are enclosed to form a superheated zone 212, and a second heating member 400 is disposed in the superheated zone 212 and surrounds the recess 230.

It will be appreciated that the top central region of the water barrier 200 is recessed to form a recess 230, and an annular cavity is formed between the sidewall of the recess 230 and the sidewall of the water barrier 200, which is the superheat region 212. The steam generated in the boiling zone 211 flows upward and then flows along the side walls of the recess 230 in the superheating zone 212 until the superheated steam is heated by the second heating element 400.

So, through being equipped with the depressed part 230 at the water proof cover 200 top, the depressed part 230 encloses with the water proof cover 200 lateral wall and closes and form the superheating area 212, and the second heating member 400 is located in the superheating area 212 and is encircleed the depressed part 230 and set up, utilizes the depressed part 230 to the superheated steam water conservancy diversion for saturated steam can fully be heated by the second heating member 400 at the in-process that flows along the depressed part 230 outer wall and generate superheated steam, guarantees superheated steam's generation efficiency.

With continued reference to fig. 3, in a preferred implementation of the superheated steam device for a cooking appliance, the air outlets 220 are multiple and spaced apart from the bottom wall of the recess 230.

It will be appreciated that the air outlet 220 is formed in the bottom wall of the recess 230, and when the saturated steam flows up the inner wall of the water-proof cover 200 to the superheat region 212, the saturated steam flows along the side wall of the recess 230 until flowing to the air outlet 220 of the bottom wall of the recess 230 and being discharged from the air outlet 220.

In this way, by arranging the plurality of air outlets 220 and distributing the air outlets at intervals on the bottom wall of the concave portion 230, the superheated steam can be discharged from the air outlet holes after flowing a certain distance along the inner wall of the waterproof cover 200, so that the heating time of the superheated steam is ensured, and the generating efficiency of the superheated steam is improved.

In a preferred implementation of the superheated steam device for a cooking appliance, as shown in fig. 1, a flow guide 500 is provided between the superheating area 212 and the boiling area 211, and the flow guide 500 is provided with air holes 510 communicating the superheating area 212 with the boiling area 211.

Preferably, a horizontal flow guide 500 is arranged in the waterproof cover 200, and the flow guide 500 is divided into a superheating area 212 and a boiling area 211 which are respectively positioned above the steam cavity 210. The water in the water shield 200 is heated and boiled in the boiling region 211 below the flow guide 500 until saturated steam is generated, and then flows into the superheating region 212 along the air guide holes 510 on the flow guide 500, and is heated by the second heating member 400 in the superheating region 212 to generate superheated steam.

Thus, by arranging the guide piece 500 between the superheating area 212 and the boiling area 211, the guide piece 500 is provided with the air guide hole 510 for communicating the superheating area 212 and the boiling area 211, so that the inside of the water-proof cover 200 is divided into the superheating area 212 positioned above and the boiling area 211 positioned below, the space inside the water-proof cover 200 is divided by the guide piece 500, saturated steam is generated by the boiling area 211, superheated steam is generated by the superheating area 212, the steam is heated in a partitioning mode, and the generation rate of the superheated steam is guaranteed.

With continued reference to fig. 1, in a preferred implementation of the superheated steam device for a cooking appliance, the flow guide 500 is provided with a protrusion 520 protruding toward the superheating area 212, the protrusion 520 is internally formed with a gas guide cavity 213 located above the water surface of the boiling area 211, and the gas guide hole 510 is provided on the top surface of the protrusion 520.

It can be understood that the flow guide member 500 is transversely arranged between the boiling region 211 and the superheating region 212, and the protruding portion 520 protrudes towards the superheating region 212 above, so that an air guide cavity 213 is formed between the protruding portion 520 and the boiling region 211, and saturated steam generated by boiling water in the boiling region 211 gathers in the air guide cavity 213 and flows into the superheating region 212 through the air guide hole 510 above the air guide cavity 213, and is heated to form superheated steam.

Like this, through being equipped with towards bellied bellying 520 in the superheating area 212 at water conservancy diversion spare 500, bellying 520 is inside to form and is located the air guide cavity 213 of boiling zone 211 surface of water top, and air guide hole 510 locates bellying 520 top surface, utilizes bellying 520 to steam water conservancy diversion, guarantees that saturated steam is stable to be carried to superheating area 212 and heats, improves superheated steam's generating rate.

In a preferred implementation of the superheated steam device for a cooking appliance, the waterproof cover 200 is detachably connected to the water tray 100, and the deflector 500 is detachably connected to the waterproof cover 200. In this way, by detachably connecting the waterproof cover 200 and the water containing tray 100, the flow guide 500 is detachably connected to the waterproof cover 200, so that the waterproof cover 200, the flow guide 500 and the water containing tray 100 can be easily detached and separated, and cleaning and maintenance can be easily performed.

Example two

In a preferred implementation of the superheated steam device for a cooking appliance, as shown in fig. 4, the air outlets 220 are provided in plurality and spaced apart from the outer sidewall of the waterproof housing 200.

It can be appreciated that when the air guide holes 510 on the flow guiding member 500 are disposed on the top surface of the protruding portion 520, the air outlets 220 may be disposed on the outer side wall of the waterproof housing 200 at intervals, so that the saturated steam generated in the boiling region 211 rises from the center of the flow guiding member 500 through the air guide holes 510, and is then fully heated by the second heating member 400 and is then discharged along the air outlets 220 on the outer side wall of the waterproof housing 200.

In this way, through setting up gas outlet 220 have a plurality of and interval distribution in the water proof cover 200 lateral wall for overheated steam can follow the venthole and discharge after flowing a distance along water proof cover 200 inner wall, guarantees overheated steam's heating time, improves overheated steam's production efficiency.

With continued reference to fig. 4, in a preferred implementation of the superheated steam device for a cooking appliance, the outer sidewall of the waterproof enclosure 200 is provided with at least one pressure stabilizing hole 240 to communicate the steam chamber 210 with the outside of the waterproof enclosure 200.

It will be appreciated that the pressure stabilizing hole 240 communicates with the inner space and the outer space of the waterproof cover 200, and the waste heat will heat the water outside the steam cavity 210 of the water tray 100 to generate steam during the heating process of the steam cavity 210, so that when the steam is generated outside the waterproof cover 200, the external steam can flow into the steam cavity 210 inside the waterproof cover 200 along the pressure stabilizing hole 240.

In this way, at least one pressure stabilizing hole 240 is provided in the outer sidewall of the waterproof cover 200 to communicate the steam chamber 210 with the outside of the waterproof cover 200, so that when water outside the waterproof cover 200 boils to generate steam, the steam is introduced into the steam chamber 210 inside the waterproof cover 200 along the pressure stabilizing hole 240 to balance the air pressure inside and outside the waterproof cover 200.

In a preferred implementation of the superheated steam device for a cooking appliance, as shown in fig. 5, the bottom wall of the water tray 100 is concave downward to form the receiving groove 110, and the water-blocking cover 200 is covered in the receiving groove 110 to enclose the steam chamber 210.

It can be understood that the waterproof cover 200 is embedded in the accommodating groove 110, and a gap is formed between the bottom edge of the waterproof cover 200 and the side wall of the accommodating groove 110, so that water can flow from the outside of the waterproof cover 200 into the inside for water replenishment.

It can be appreciated that the accommodating groove 110 is adapted to the shape of the bottom surface of the waterproof cover 200, so that the waterproof cover 200 can be suitably attached to the sidewall of the accommodating groove 110 after being embedded in the accommodating groove 110. A gap is formed between the edge of the waterproof cover 200 and the accommodating groove 110, so that water flows into the waterproof cover 200 from the outside of the waterproof cover 200 to supplement water in the waterproof cover 200, and the situation that the water in the waterproof cover 200 is evaporated is avoided, and the heating element causes potential safety hazards in the waterproof cover 200 due to dry combustion.

In this way, the accommodating groove 110 is formed by concave-down of the bottom wall of the water containing disc 100, the water-proof cover 200 is covered in the accommodating groove 110 to enclose and form the steam cavity 210, so that the accommodating groove 110 plays a role in stabilizing and limiting the water-proof cover 200, in addition, when the water in the steam cavity 210 is reduced in the process of generating steam in the steam cavity 210, water outside the accommodating groove 110 can continuously flow into the accommodating groove 110 due to the fact that the accommodating groove 110 is lower than the rest bottom surfaces of the water containing disc 100, water can be supplemented to the steam cavity 210, and potential safety hazards caused by dry burning after the water in the steam cavity 210 is dried are prevented.

Example III

In a preferred implementation of the superheated steam device for a cooking appliance, as shown in fig. 6 and 8, the deflector 500 is provided with a protrusion 520 protruding toward the boiling region 211, and the air-guide holes 510 are provided at the side wall of the protrusion 520.

It will be appreciated that the raised portion 520 is raised toward the boiling region 211 below, so that the annular air guide cavity 213 is formed by enclosing the side wall of the raised portion 520 and the side wall of the waterproof cover 200, and after the saturated steam generated in the boiling region 211 fills the air guide cavity 213, the saturated steam is discharged to the superheating region 212 above along the air guide holes 510 on the side wall of the raised portion 520.

In this way, the protruding portion 520 protruding towards the boiling region 211 is arranged on the flow guiding piece 500, and the air guiding hole 510 is arranged on the side wall of the protruding portion 520, so that the protruding portion 520 occupies part of the space of the boiling region 211, the water quantity of the boiling region 211 is reduced, the rapid boiling of the boiling region 211 is realized, the generation rate of saturated steam is accelerated, and the generation rate of superheated steam is further accelerated.

With continued reference to fig. 6 and 8, in a preferred implementation of the superheated steam device for a cooking appliance, the guide member 500 is provided with a mounting hole 530, and the second heating member 400 is inserted into the mounting hole 530 to heat the superheated and boiling regions 212 and 211 at the same time.

It will be appreciated that, as shown in fig. 7, the second heating element 400 is a heat pipe, and the second heating element 400 extends upward from the bottom surface of the water tray 100 until the second heating element 400 is coiled in the superheat region 212 through the flow guiding element 500, and the portion of the second heating element 400 below the flow guiding element 500 heats the water in the boiling region 211 at the same time when heating, so as to further increase the boiling rate of the water in the boiling region 211.

In this way, the second heating element 400 is inserted into the mounting hole 530 through the mounting hole 530 provided on the flow guiding element 500, so as to heat the superheating area 212 and the boiling area 211 at the same time, so that the second heating element 400 can assist the first heating element 300 to heat the boiling area 211, and increase the rate of saturated steam generated by the boiling area 211, thereby increasing the generation rate of superheated steam.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model.

Claims (10)

1. The utility model provides a superheated steam device for cooking utensil, includes flourishing water tray and water proof cover, flourishing water tray encloses with the water proof cover and closes and form the steam chamber, water proof cover still is equipped with the gas outlet that is used for discharging steam, its characterized in that:

the steam cavity is provided with a boiling zone and a superheating zone which are communicated, the superheating zone is arranged between the boiling zone and the air outlet, the boiling zone is positioned below the superheating zone, a first heating part for heating the boiling zone is arranged below the steam cavity, and a second heating part for heating the superheating zone is arranged above the steam cavity.

2. The superheated steam device for cooking utensil as claimed in claim 1, wherein the top of the water-proof cover is provided with a concave portion, the concave portion and the side wall of the water-proof cover enclose to form the superheat region, and the second heating member is disposed in the superheat region and surrounds the concave portion.

3. The superheated steam device for a cooking appliance according to claim 2, wherein the air outlets are plural and spaced apart from the bottom wall of the recess, or the air outlets are plural and spaced apart from the outer side wall of the water-proof cover.

4. The superheated steam device for cooking utensil as claimed in claim 1, wherein the bottom wall of the water tray is concave downward to form a receiving groove, and the water-blocking cover is covered in the receiving groove to form the steam cavity.

5. The superheated steam device for a cooking appliance according to claim 1, wherein an outer sidewall of the waterproof cover is provided with at least one pressure stabilizing hole to communicate the steam chamber with an outside of the waterproof cover.

6. The superheated steam device for cooking utensil as claimed in claim 1, wherein a guide member is provided between the superheating region and the boiling region, and the guide member is provided with an air guide hole communicating the superheating region and the boiling region.

7. The superheated steam device as claimed in claim 6, wherein the guide member is provided with a protrusion protruding toward the superheating area, an air guide chamber above the water surface of the boiling area is formed inside the protrusion, and the air guide hole is formed on the top surface of the protrusion.

8. A superheated steam unit for a cooking utensil according to claim 6 wherein the guide member is provided with a boss projecting toward the boiling region, and the air-guide hole is provided in a side wall of the boss.

9. The superheated steam device for a cooking appliance as claimed in claim 6, wherein the guide member is provided with a mounting hole, and the second heating member is penetrated into the mounting hole to heat the superheating region and the boiling region at the same time.

10. The superheated steam device for a cooking appliance of claim 6, wherein the water-blocking cover is detachably connected to the water-containing tray, and the deflector is detachably connected to the water-blocking cover.