CN216628211U - Steam box - Google Patents

Abstract

The utility model discloses a steam box, comprising: box and intake pipe. A steaming cavity is formed in the box body; at least one part of the air inlet pipe extends into the steaming cavity and is positioned at the upper part of the steaming cavity, and a plurality of exhaust holes are formed in the at least one part. This steam ager can reduce the velocity of flow that steam flow flows into and evaporates the chamber, can reduce the mixed degree of steam and air at the initial stage of culinary art to improved the speed that steam filled and evaporated the chamber, thereby make the ambient temperature who evaporates the intracavity can promote fast, in order to reduce the culinary art time that the steam ager cooks food, and then reached the purpose of cooking fast.

Description

Steam box

Technical Field

The utility model relates to the technical field of steam household appliances, in particular to a steam box.

Background

The steam of traditional steam ager is followed the bottom of steam ager or the steam intracavity that the lateral part directly discharged the steam ager by steam generator's gas vent, steam gets into the flow velocity who evaporates the intracavity very fast, at the initial stage of culinary art, steam gets into and can mix with the original air that evaporates the intracavity behind the steam chamber, consequently, lead to evaporating the exhaust velocity of the original air of intracavity slow, thereby make the speed that steam filled the steam chamber slower, it is slower to evaporate intracavity environment intensification, cause the cooking time that the steam ager cooks food longer, there is the improvement space.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve at least to some extent one of the above-mentioned technical problems of the prior art. Therefore, the utility model provides the steam box, which can reduce the flow rate of steam flowing into the steam cavity, reduce the mixing degree of the steam and air at the initial stage of cooking, so as to improve the speed of filling the steam cavity with the steam, and quickly increase the ambient temperature in the steam cavity, so as to reduce the cooking time of the steam box for cooking food, and further achieve the purpose of quick cooking.

A steam box according to an embodiment of the present invention includes: the steam box comprises a box body, a steam box body and a steam box, wherein a steam cavity is formed in the box body; the steam chamber comprises a steam inlet pipe, at least one part of the steam inlet pipe extends into the steam chamber and is located on the upper portion of the steam chamber, and a plurality of exhaust holes are formed in the at least one part of the steam inlet pipe.

According to the steam box disclosed by the embodiment of the utility model, the flow rate of steam flowing into the steam cavity can be reduced, the mixing degree of the steam and air can be reduced at the initial stage of cooking, so that the speed of filling the steam cavity with the steam is increased, the ambient temperature in the steam cavity can be quickly increased, the cooking time of the steam box for cooking food is shortened, and the purpose of quick cooking is further achieved.

In addition, according to utility model embodiment's steam ager, can also have following additional technical characterstic:

according to some embodiments of the utility model, the number of the air inlet pipes is multiple, the air inlet pipes are arranged at intervals, and the exhaust holes in the air inlet pipes are arranged in a staggered manner.

According to some embodiments of the present invention, the exhaust hole of each of the intake pipes is plural, and at least a part of the plural exhaust holes is opened in a peripheral wall of the intake pipe.

According to some embodiments of the utility model, a portion of the exhaust holes located on the peripheral wall of the intake duct opens toward the top wall of the tank.

According to some embodiments of the utility model, portions of the exhaust holes located on the peripheral wall of the intake pipe are equally spaced.

According to some embodiments of the utility model, a diameter of the exhaust hole near the air intake end of the air intake pipe is smaller than a diameter of the exhaust hole away from the air intake end of the air intake pipe.

According to some embodiments of the utility model, the plurality of air inlet tubes are arranged in parallel in the same transverse plane.

According to some embodiments of the utility model, a plurality of the air intake pipes are arranged in parallel.

According to some embodiments of the utility model, at least a portion of the top wall protrudes outwardly to form a protrusion, and the air inlet pipe is pierced inwardly from a peripheral wall of the protrusion.

According to some embodiments of the utility model, the plurality of air inlet tubes are pierced inward from different directions of the peripheral wall of the protruding portion.

Drawings

FIG. 1 is a schematic structural view of a steam box according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a steam box according to an embodiment of the present invention.

Reference numerals:

the steam box 100, the box body 1, the top wall 11, the protruding part 111, the air inlet pipe 2, the exhaust hole 21 and the steam cavity 3.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to 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", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

A steam box 100 according to an embodiment of the present invention is described below with reference to fig. 1-2.

The steam box 100 according to an embodiment of the present invention may include: a box body 1 and an air inlet pipe 2.

As shown in fig. 1 and 2, a steam box 100 according to an embodiment of the present invention is a steam appliance that can cook food using steam. Because the steam of traditional steam ager is directly discharged into the steam chamber of steam ager from the bottom or the lateral part of steam ager by steam generator's gas vent, steam gets into the flow velocity in the steam chamber very fast, at the initial stage of culinary art, steam gets into and can mix with the original air in the steam chamber after the steam chamber, consequently leads to the exhaust velocity of the original air in the steam chamber to be slower to make the speed that the steam filled the steam chamber slower, steam intracavity environment intensifies slowly, cause the steam ager to cook the culinary art time of food longer.

To this end, the embodiment of the present invention designs the steam box 100 having the air inlet pipe 2 capable of reducing the flow speed of the steam entering the steaming chamber 3, so as to reduce the mixing degree of the steam and the air at the initial stage of cooking, thereby increasing the speed of filling the steaming chamber 3 with the steam, so that the ambient temperature in the steaming chamber 3 can be rapidly increased, and further, the cooking time of the steam box 100 for cooking food can be reduced.

Wherein, the steaming chamber 3 has in the box 1, at least a part of intake pipe 2 stretches into steaming chamber 3 in and is located steaming chamber 3's upper portion, a plurality of exhaust holes 21 have been seted up in at least a part, in-process with steam reposition of redundant personnel in intake pipe 2 to steaming chamber 3 internal steam, and improve the area covered of intake pipe 2 exhaust steam, in order to further reduce the velocity of flow of steam, and, steam can form a stable steam layer on steaming chamber 3's upper portion, and this steam layer can slow from top to bottom move, in order to stable air that will evaporate in the chamber 3 from steaming chamber 3's below discharge, consequently, the mixed degree of steam and air has been reduced, in order to improve the exhaust velocity of air, thereby the intensification efficiency of steaming chamber 3 has been improved.

Because the density of steam is less than the density of air, consequently, set up intake pipe 2 in the upside of evaporating chamber 3 to make filling that steam can be from top to bottom be full of whole steam ager 100, and will evaporate original air escape steam ager 100 in the chamber 3 simultaneously, with the mixed degree that further reduces steam and air, improve the speed that steam filled and evaporated chamber 3, thereby reach and improve the interior environment programming rate of evaporating chamber 3, reduce the purpose of steam ager 100's culinary art time.

According to the steam box 100 of the embodiment of the utility model, the steam box 100 can reduce the flow rate of steam flowing into the steaming cavity 3, and can reduce the mixing degree of the steam and the air at the initial stage of cooking, so as to improve the speed of filling the steaming cavity 3 with the steam, thereby rapidly increasing the ambient temperature in the steaming cavity 3, reducing the cooking time of the steam box 100 for cooking food, and further achieving the purpose of rapid cooking.

In conjunction with the embodiment shown in fig. 1 and 2, the air inlet pipes 2 are multiple, so that the steam flowing out from the steam generator can be divided by the air inlet pipes 2, so as to reduce the flow rate of the steam flowing into the steam chamber 3, and the air inlet pipes 2 are arranged at intervals, and the exhaust holes 21 in the air inlet pipes 2 are arranged in a staggered manner, so that the steam discharged from the exhaust holes 21 in the two adjacent air inlet pipes 2 is prevented from impacting each other to generate turbulent flow with a fast flow speed, and further, the upper part of the steam chamber 3 can form a stable steam layer.

Referring to fig. 2, each air inlet pipe 2 has a plurality of air outlet holes 21, so as to divide the steam in the process of discharging the steam into the steaming chamber 3 through the air inlet pipe 2, and increase the coverage area of the steam discharged from the air inlet pipe 2, thereby further reducing the flow rate of the steam, so as to reduce the mixing degree of the steam and the air, and increase the speed of filling the steaming chamber 3 with the steam, and at least a part of the air outlet holes 21 is formed in the circumferential wall of the air inlet pipe 2, so as to facilitate the arrangement of more air outlet holes 21.

Further, a part of the exhaust holes 21 on the peripheral wall of the intake pipe 2 is opened toward the top wall 11 of the box body 1, so that the steam flow flowing in from the exhaust holes 21 firstly passes through the blockage of the top wall 11, and then flows downwards after the speed is reduced, so as to further reduce the flow speed of the steam.

As a preferred embodiment, referring to fig. 2, the partial exhaust holes 21 on the circumferential wall of the air inlet pipe 2 are distributed at equal intervals to make the amount of steam exhausted from each exhaust hole 21 more uniform, so that the density and flow rate of the steam entering into each position in the steaming chamber 3 are more uniform, and thus each position in the steaming chamber 3 can be uniformly heated, so that the steaming box 100 has better heating performance.

According to some embodiments of the present invention, since the steam flow rate of the air inlet pipe 2 near the air inlet end is faster, and the steam flow rate far away from the air inlet end is slower, that is, the steam flow rate is slower as the distance between the air inlet hole 21 and the air inlet end is farther, the diameter of the air outlet hole 21 near the air inlet end of the air inlet pipe 2 is smaller than the diameter of the air outlet hole 21 far away from the air inlet end of the air inlet pipe 2, so that the flow rate of the steam flowing out from each air outlet hole 21 is the same, the steam flow rate at each position in the same plane is uniform, so that the steam can form a stable steam layer at the upper part of the steaming chamber 3, and the steam layer can move downwards uniformly and stably, so as to further reduce the mixing degree of the steam and the air, increase the speed of filling the steaming chamber 3 with the steam, and further make the steam density in each position in the steaming chamber 3 more uniform, so as to ensure that the steam chamber 3 can be heated uniformly, and the steam box 100 can heat food more effectively.

As shown in fig. 2, the plurality of air inlet pipes 2 are arranged in parallel in the same horizontal plane (wherein, the direction is transverse to the height direction of the box body 1), and the plurality of air inlet pipes 2 are arranged in parallel, so that the flow speed of the steam in the same plane tends to be consistent, and the steam can further form a stable steam layer, so that the steam chamber 3 is more conveniently and uniformly filled, and the air in the steam chamber 3 is stably discharged.

As shown in fig. 1, at least a portion of the top wall 11 protrudes outward to form a protrusion 111, and the air inlet pipe 2 penetrates inward from the peripheral wall of the protrusion 111, so that the arrangement of the steam sandwich cavity and the air inlet pipe 2 does not occupy the cooking space of the steam box 100 for cooking, thereby making the steam cavity 3 larger to further increase the volume of the steam box 100.

Further, many intake pipes 2 wear to establish in to box 1 from the not equidirectional of perisporium to make 2 exhaust steam of intake pipe can be more even fill steaming chamber 3, thereby make steaming chamber 3 in the steam density more even, so that form stable steam layer, and then can make steaming chamber 3 in each steam density more even, in order to ensure steaming chamber 3 in everywhere even heating, so that steam box 100 is better to the heating effect of food.

According to some embodiments of the present invention, the steam generator is formed by a water pipe and a heating element, and liquid water in the water pipe is converted into steam and the steam is delivered to the interior of the steam appliance, so that the heated steam can heat and cook food in the interior of the steam appliance. Optionally, the heating element is disposed inside and/or outside the water pipe to heat the water pipe, so as to heat the liquid water in the water pipe through the heating water pipe or directly heat the liquid water, so that the liquid water is converted into water vapor after being heated. That is, the heating member may be disposed inside or outside the water pipe, or both inside and outside the water pipe, so as to improve heating efficiency, and thus, the generation efficiency of the steam can be improved.

Further, the water pipe is constructed in a form that it can be extended and contracted according to the change of the temperature to which it is subjected, since the water pipe generates the temperature change during the operation of the steam generator, namely, the heater continuously heats the water pipe to continuously raise the temperature of the water pipe, and when cold water flows into the water pipe, the temperature of the water pipe is temporarily lowered, therefore, the water pipe can realize continuous automatic expansion along with the change of temperature, and the expansion of the water pipe can change the inner wall area of the water pipe, therefore, the scale accumulated on the inner wall of the water pipe can fall off from the inner wall of the water pipe in the extension and contraction process of the water pipe, and is discharged out of the water pipe along with the flowing of the water flow, so that the water pipe is not required to be cleaned by manually adding cleaning substances such as citric acid and the like, therefore, the scale in the steam generator is more convenient to clean, and the damage to the steam generator caused by the accumulation of the scale in the water pipe is avoided.

In addition, because the embodiment of the utility model adopts the form of the flow channel type steam generator with the heating element matched with the water pipe, the integral structure is relatively flat, the integral size is relatively small, the requirement on the installation space is lower, the arrangement is more convenient, and the installation requirements of horizontal or side standing and the like can be met.

According to some embodiments of the present invention, the water pipe is adapted to extend with the increase of the temperature of the water pipe and to shorten with the decrease of the temperature of the water pipe, that is, during the operation of the steam generator, the temperature of the water pipe gradually increases under the heating effect of the heating element, the water pipe gradually extends with the gradual increase of the temperature of the water pipe, and after the steam generator stops heating, the heating element stops heating the water pipe, the temperature of the water pipe gradually decreases to the room temperature, the water pipe gradually shortens with the decrease of the temperature, or, during normal heating, the water flow in the water pipe rapidly takes away the heat of the water pipe, and the water pipe shortens with the abrupt decrease of the temperature.

From this, at steam generator's operation in-process, the water pipe can carry out the flexible of many times shape to break away from the adnexed incrustation scale of inner wall at flexible in-process, so that the incrustation scale can discharge the pipe along with rivers together, thereby avoided the piling up of incrustation scale, and then improved steam generator's security.

According to some embodiments of the utility model, the water tube is configured as a memory alloy piece. The memory alloy is a material composed of more than two metal elements, and the memory alloy part has a shape memory effect through thermal elasticity, martensite phase transformation and inversion thereof. Specifically, the water pipe has a two-way memory effect, so that the water pipe can be stretched under the shape memory effect of the memory alloy part after being heated and can be shortened after the temperature is reduced, and the water pipe can be separated from scale attached to the inner wall in the stretching and shortening processes.

Preferably, the water pipe is constructed as a copper-zinc-aluminum shape memory alloy member. Because the copper-zinc-aluminum shape memory alloy part is low in price and stable in property, and harmful substances are not generated in the high-temperature heating process, the manufacturing cost of the water pipe can be reduced and the safety of the steam generator can be improved by manufacturing the water pipe by using the copper-zinc-aluminum shape memory alloy. Of course, the embodiments of the present invention are not limited thereto, and the water pipe may be made of one or more of copper-zinc-tin shape memory alloy, copper-zinc-silicon shape memory alloy, or iron-manganese-silicon shape memory alloy.

According to some embodiments of the utility model, a heating element comprises: the heating pipe, wherein, the water pipe structure is the pipe, and heating pipe spiral winding is in the outside of pipe to make the area of contact between heating pipe and the pipe bigger, thereby can ensure the heating effect of heating pipe to the pipe. And, the heating pipe spiral winding can make everywhere of pipe be heated more evenly in the outside of pipe to avoid because the pipe is heated the inequality and the water pipe that leads to appears warping at the extension in-process that is heated, thereby improved steam generator's the security that sets up.

According to further embodiments of the present invention, a heating element comprises: the hot plate, the water pipe structure is square pipe, and the hot plate is attached on at least one lateral wall of square pipe, and the hot plate heats with the interior liquid water of heating square pipe through the lateral wall to square pipe to make the interior liquid water of square pipe can be turned into steam by liquid in square pipe, and carry inside the steam household electrical appliances. Moreover, the overall structure of the steam generator consisting of the heating plate and the square tube can be a flat square structure and can be attached to the inner wall of the inner space of the steam household appliance, so that the overall structure of the steam household appliance is more compact, and the utilization rate of the inner space of the steam household appliance is improved.

According to some embodiments of the utility model, the heat conducting layer is arranged between the heating element and the water pipe, so that the water pipe is heated more uniformly, and the deformation of the water pipe in the heating and extending process caused by uneven heating of the water pipe is avoided, thereby further improving the safety of the steam generator.

As a preferred embodiment, the heating member includes: the electromagnetic induction coil is sleeved on the outer side of the water pipe so as to heat the water pipe through an electromagnetic induction heating principle. Therefore, the heating effect is better, the structure is simpler, and the manufacturing cost is lower.

According to some embodiments of the utility model, the inner wall of the water pipe is configured to be a smooth inner wall, so that the scale accumulated on the inner wall of the water pipe is more easily removed, and the scale can be completely separated from the water pipe in the process of extending and retracting the water pipe, thereby further improving the descaling effect of the steam generator.

In other embodiments, the water pipe may be configured as a resistance pipe having a certain resistance value according to a material property thereof, and capable of converting electric energy into heat energy, and the power supply unit may be capable of supplying the electric energy to the resistance pipe so that the resistance pipe can generate heat by itself. The resistance tube is internally provided with a liquid flowing space, one end of the liquid flowing space in the resistance tube is connected with an external liquid source, the other end of the liquid flowing space in the resistance tube is connected with an air outlet channel of the steam generator, liquid water is converted into water vapor from liquid in the liquid flowing space in the resistance tube, and the power supply device is electrically connected with the resistance tube so as to supply power to the resistance tube and enable the resistance tube to generate heat. After power supply unit supplies power to the resistance tube, the resistance tube can turn into heat energy with the electric energy, and the heat that the resistance tube produced can directly heat the liquid water in the liquid flow space, so that the liquid water that flows into in the liquid flow space from the external liquid source can be turned into steam by liquid after being heated, and steam after will converting is carried inside the steam household electrical appliances from steam generator's outlet channel, so that the steam after the heating can heat the inside food of steam household electrical appliances and cook.

According to some embodiments of the utility model, the power supply device comprises: the power supply can be DC power supply or AC power supply, and the power supply wire is electrically connected between the power supply and the resistance tube to transmit the current of the power supply to the two ends of the resistance tube, thereby heating the liquid water by the heat effect generated by the current flowing through the resistance tube and converting the liquid water into water vapor.

Furthermore, the number of the power supply leads is two, and the two power supply leads are respectively connected to the two outermost ends of the resistance tube in the extending direction. Two power supply wires are suitable for and connect respectively the feed liquor end of resistance tube and give vent to anger to make whole resistive material of resistance tube can both receive the adding of both ends voltage and hold, make whole resistance tube can both produce heat under the effect of power, thereby make the resistance tube can have the biggest area that generates heat, and then make the heating effect of resistance tube better. From this, improved the heating efficiency of resistance tube, and then promoted steam generator's steam production efficiency.

Specifically, one of the power supply leads is connected at a position close to the joint of the water pipe and the resistance pipe, and the other power supply lead is connected at a position close to the joint of the resistance pipe and the air outlet channel of the steam generator. Therefore, the whole resistance tube can generate heat, so that the resistance tube has the largest heat generation area.

According to some embodiments of the utility model, the outer side of the resistance tube is provided with an insulating protective layer, wherein the insulating protective layer can play an effective insulating role. From this, when the resistance tube leakage or other trouble appeared, the insulating protection layer can avoid the resistance tube to take place the short circuit to can improve steam generator's operating stability, and still can avoid the resistance tube and the phenomenon that the lapped condition appears and take place the short circuit with peripheral spare.

Further, the resistance value of the resistance tube is related to the material of the resistance tube, and the resistance tube can be constructed into a metal tube, a silicone tube or a graphite tube, wherein the metal tube, the silicone tube and the graphite tube are made of cheap materials, the overall cost of the steam generator can be reduced, the resistance tube has good resistivity, and the resistance tube is hard in texture and not easy to damage, so that the resistance tube has good heating effect and setting stability.

According to some embodiments of the present invention, the resistance value of the resistance tube is further related to the tube length and the wall thickness of the resistance tube, specifically, the thinner the wall thickness of the resistance tube, the larger the resistance, the lower the power, the longer the tube length of the resistance tube, the larger the resistance, the lower the power, therefore, the wall thickness of the resistance tube is D, D is greater than or equal to 0.1mm and less than or equal to 10mm, that is, the wall thickness of the resistance tube is controlled between 0.1mm and 10mm, so as to enable the resistance tube to have a larger resistance value on the premise of ensuring the overall strength of the resistance tube, so that the resistance tube can release more heat to heat the liquid water to generate water vapor.

Furthermore, the length of the resistance tube is L, L is more than or equal to 5cm and less than or equal to 3m, namely, the length of the resistance tube 1 is controlled between 5cm and 3m, so that the resistance tube has a larger resistance value on the premise of ensuring the whole weight and volume of the resistance tube within a reasonable range, and the resistance tube can release more heat to heat liquid water to generate water vapor.

According to some embodiments of the utility model, the power supply lead is provided with an on-off protection device, which can ensure the operation safety of the steam generator. When the water in the water box is insufficient or the circuit is short-circuited, the on-off protection device is suitable for automatically disconnecting the electric connection between the power supply and the resistance tube, so that the dangerous conditions of circuit damage or thermal runaway and the like caused by the fact that the power supply continuously supplies power to the resistance tube are avoided, and the reliability and the safety of the steam household appliance can be improved.

According to some embodiments of the utility model, in order to conveniently adjust the temperature and efficiency of steam generated by the steam generator so as to realize free switching of different cooking modes, the embodiment of the utility model is further provided with a voltage adjusting device on the power supply wire so as to adjust the heating power of the resistance tube by adjusting the voltage at two ends of the resistance tube, thereby achieving the purpose of changing the efficiency of the resistance tube for generating steam and the temperature of the generated steam.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. A steam box, comprising:

the steam box comprises a box body, a steam box body and a steam box, wherein a steam cavity is formed in the box body;

the steam chamber comprises a steam inlet pipe, at least one part of the steam inlet pipe extends into the steam chamber and is located on the upper portion of the steam chamber, and a plurality of exhaust holes are formed in the at least one part of the steam inlet pipe.

2. The steam box of claim 1, wherein the number of the air inlet pipes is multiple, the air inlet pipes are arranged at intervals, and the air outlet holes of the air inlet pipes are arranged in a staggered manner.

3. The steam box as claimed in claim 1, wherein the number of the exhaust holes of each of the intake pipes is plural, and at least a part of the plural exhaust holes is opened on a peripheral wall of the intake pipe.

4. A steam box according to claim 3, wherein a portion of the exhaust holes in the peripheral wall of the intake duct are opened toward the top wall of the box body.

5. A steam box according to claim 3, wherein the partial exhaust holes on the peripheral wall of the intake pipe are equally spaced.

6. The steam box of claim 3, wherein a diameter of the vent proximate to the air intake end of the air intake pipe is smaller than a diameter of the vent distal from the air intake end of the air intake pipe.

7. The steam box of claim 2, wherein the plurality of inlet tubes are arranged in parallel in a common transverse plane.

8. The steam box of claim 7, wherein the plurality of inlet pipes are arranged in parallel.

9. A steam box according to claim 2, wherein at least a portion of the top wall of the box body protrudes outwardly to form a protrusion, and the air inlet pipe is pierced inwardly from a peripheral wall of the protrusion.

10. The steam box of claim 9, wherein a plurality of the air inlet pipes are pierced inward from different directions of a peripheral wall of the protruding portion.

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