WO2023056907A1

WO2023056907A1 - Steam separation device for cooking apparatus, and cooking apparatus

Info

Publication number: WO2023056907A1
Application number: PCT/CN2022/123560
Authority: WO
Inventors: 沈志豪; 司鹏; 张红帅; 赵鹏飞; 霍延凯; 奚俊男
Original assignee: 广东美的厨房电器制造有限公司; 美的集团股份有限公司
Priority date: 2021-10-09
Filing date: 2022-09-30
Publication date: 2023-04-13

Abstract

A steam separation device (1) for a cooking apparatus (100), and a cooking apparatus (100) having same. The steam separation device (1) is internally provided with a steam separation cavity; the steam separation cavity is provided with a steam inlet (101) and a steam outlet (102); and the steam inlet (101) and the steam outlet (102) are spaced apart by a predetermined distance in an airflow direction.

Description

Steam distributors and cooking equipment for cooking equipment

Cross References to Related Applications

This application claims the priority of the Chinese patent application with application number 202122436670.6 and titled "Steam distribution device and cooking equipment for cooking equipment" filed with China Patent Office on October 09, 2021, the entire contents of which are incorporated by reference in this application.

This application claims the priority of the Chinese patent application with application number 202122436902.8 and titled "Steam distribution device and cooking equipment for cooking equipment" filed with China Patent Office on October 09, 2021, the entire contents of which are incorporated by reference in this application.

This application claims the priority of a Chinese patent application with application number 202122437763.0 and application title "Steam Box" filed with the China Patent Office on October 09, 2021, the entire contents of which are incorporated herein by reference.

This application claims priority to a Chinese patent application filed with the China Patent Office on October 09, 2021, with application number 202122445596.4, and titled "Steam Intake Structure and Cooking Appliance Therewith", the entire contents of which are hereby incorporated by reference. Applying.

technical field

The present application relates to the technical field of electric appliance manufacturing, in particular to a steam distribution device for cooking equipment and cooking equipment with the steam distribution device.

Background technique

In the cooking appliances such as steamer/oven in the related art, the steam is injected directly into the cavity from a single nozzle. This way of entering steam will cause the steam flow rate into the cavity to be too fast, and the steam and air will be mixed, so that the time to discharge the air If it is too long, the cooking speed will be slow and the cooking effect will be affected.

application content

This application aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, an object of the present application is to provide a steam distribution device for cooking equipment, which can reduce the flow rate of steam, improve cooking effect, and has a simple structure and is easy to construct.

Another object of the present application is to propose a cooking device.

According to the steam distributing device for cooking equipment according to the embodiment of the present application, the steam distributing device has a steam distributing chamber inside, and the steam distributing chamber has a steam inlet and a steam outlet, and the steam inlet and the steam outlet are in the airflow direction separated by a predetermined distance.

According to the steam distributing device for cooking equipment according to the embodiment of the present application, the flow rate of steam can be reduced, the cooking effect can be improved, and the structure is simple and easy to construct.

In addition, the steam distributing device for cooking equipment according to the above-mentioned embodiments of the present application may also have the following additional technical features:

In some embodiments, the steam outlet includes at least two steam outlets, and the at least two steam outlets are at least partially staggered from the steam inlet in the steam inlet direction.

In some embodiments, the at least two steam outlets are arranged at intervals along the extending direction of the steam distribution device.

In some embodiments, the at least two steam outlets are adjacent to the first end surface in the steam distribution device, and the at least two steam outlets are separated from the second end surface in the steam distribution device by a predetermined distance, the The steam inlet is arranged close to the second end surface in the steam distribution device.

In some embodiments, the periphery of each of the steam outlets is connected with an air guide tube, and the air guide tube is connected to the periphery of the steam outlet, and the air outlet direction of the air guide tube and the steam outlet is Extend in the same direction or have an included angle at a predetermined angle.

In some embodiments, the steam outlet is configured as a strip.

In some embodiments, the steam distributing device is in the shape of a hollow strip, and the steam inlet and the steam outlet are respectively arranged on opposite side walls of the steam distributing device.

In some embodiments, the steam outlet is in the shape of a strip extending in the same direction as the steam distributing device.

In some embodiments, in the intake direction of the steam inlet, the steam inlet and the steam outlet are staggered.

In some embodiments, the opening width of the steam outlet is in the range of 5 mm to 10 mm.

In some embodiments, the steam outlet is straight.

The cooking equipment according to the embodiment of the present application includes: a box body and a steam distribution device, a cooking cavity is arranged in the box body; the steam distribution device is connected with the box body, and the steam distribution device is connected with the box body The steam distribution device is the aforementioned steam distribution device for cooking equipment.

According to the cooking device of the embodiment of the present application, the flow rate of the steam can be reduced, the cooking effect can be improved, and the structure is simple to save cost.

In some embodiments, a steam generating device is also included, the steam generating device is connected to the box body, and the steam generating device is connected to the steam inlet of the steam distributing device.

In some embodiments, the steam distributing device is arranged on the top of the cooking cavity, and the steam outlet is configured to exit horizontally towards the top of the cooking cavity.

In some embodiments, the top of the box has an outwardly protruding bulge, and the steam distribution device is configured to discharge air toward the inside of the bulge.

In some embodiments, the steam generating device includes: a steam generator and a conduit, the steam generator is installed on the outer surface of the box; one end of the conduit is connected to the steam generator and the other end is connected to the Steam inlet of the steam distributor.

In some embodiments, the steam distributing device includes a steam distributing pipe, and the steam distributing pipe is provided with a steam inlet hole and a plurality of steam distributing holes arranged at intervals, and the steam distributing holes communicate with the cooking cavity.

In some embodiments, a plurality of the steam distribution holes are arranged at intervals along the length direction of the steam distribution pipe.

In some embodiments, the steam distribution pipe is oriented along the length of the cooking cavity.

In some embodiments, the steam distribution pipe is arranged on the upper part of the box.

In some embodiments, the steam distribution pipe is arranged at the rear of the box body and the steam distribution hole faces forward.

In some embodiments, the steam distributing device further includes a steam inlet chamber, the steam inlet chamber is arranged in the box, is located above the cooking chamber and communicates with the cooking chamber.

In some embodiments, the steam distribution pipe is arranged at the junction of the rear wall and the top wall of the steam inlet cavity.

In some embodiments, the lower surface of the steam inlet cavity is open to communicate with the cooking cavity.

In some embodiments, there is a flange extending out of the steam distribution pipe around the steam distribution hole.

In some embodiments, the steam inlet hole is formed on at least one end surface of the steam distribution pipe.

In some embodiments, the distance between every two adjacent steam distribution holes gradually increases from being close to the steam inlet hole to away from the steam inlet hole.

In some embodiments, the diameter of each of the steam distribution holes gradually increases from a direction close to the steam inlet hole to a direction away from the steam inlet hole.

In some embodiments, the steam distribution pipe is a square pipe, and the steam distribution hole is a round hole.

In some embodiments, the steam distributing device is an air inlet pipe, at least a part of the air inlet pipe protrudes into the cooking cavity and is located at the upper part of the cooking cavity, and a plurality of steam outlets are opened on the at least one part.

In some embodiments, there are multiple intake pipes, the multiple intake pipes are arranged at intervals, and the steam outlets on the multiple intake pipes are arranged to be staggered from each other.

In some embodiments, there are multiple steam outlets on each air intake pipe, and at least a part of the multiple steam outlets is opened on the peripheral wall of the air intake pipe.

In some embodiments, a part of the steam outlet located on the peripheral wall of the air intake pipe opens toward the top wall of the box.

In some embodiments, part of the steam outlets located on the peripheral wall of the intake pipe are distributed at equal intervals.

In some embodiments, the diameter of the steam outlet near the intake end of the intake pipe is smaller than the diameter of the steam outlet away from the intake end of the intake pipe.

In some embodiments, a plurality of the intake pipes are arranged in the same horizontal plane.

In some embodiments, multiple intake pipes are arranged in parallel.

In some embodiments, at least a part of the top wall of the box protrudes outward to form a protrusion, and the air intake pipe penetrates inward from the peripheral wall of the protrusion.

In some embodiments, a plurality of the air intake pipes penetrate inward from different directions of the peripheral wall of the protrusion.

In some embodiments, the cooking device is a steam cooking appliance.

Description of drawings

Fig. 1 is a front view of a steam distribution device in some embodiments of the present application.

Figure 2 is a rear view of the steam distribution device of some embodiments of the present application.

Figure 3 is a top view of a cooking device according to some embodiments of the present application.

Figure 4 is a bottom view of a cooking device according to some embodiments of the present application.

Fig. 5 is a front view of a steam distributing device in some other embodiments of the present application.

Fig. 6 is a side view of the steam distributing device of some other embodiments of the present application.

Fig. 7 is a top view of cooking equipment according to other embodiments of the present application.

Fig. 8 is a bottom view of cooking equipment according to other embodiments of the present application.

Fig. 9 is a schematic structural diagram of a cooking device according to some embodiments of the present application.

Fig. 10 is a schematic structural diagram of a cooking device according to some embodiments of the present application.

Fig. 11 is a schematic diagram of a partial structure of a cooking device according to some embodiments of the present application.

Fig. 12 is a schematic structural diagram of cooking equipment according to other embodiments of the present application;

Fig. 13 is a schematic structural diagram of cooking equipment according to other embodiments of the present application.

Reference signs:

Cooking equipment 100, steam distribution device 1, steam inlet 101, steam outlet 102, top wall 1100, protrusion 111, first end surface 11, second end surface 12, air guide tube 13, box body 2, convex hull 21, steam inlet Cavity 20, steam distribution pipe 21, air inlet 211, steam distribution hole 212, flange 213, steam inlet pipe 22, steam generator 31, conduit 32, shunt pipe 33, cooking chamber 40.

Detailed ways

At present, most cooking equipment such as steam boxes/steam ovens use hidden steam generators, that is, a silicone tube connects the steam generator outlet and the cavity, and the steam directly enters the cavity through the nozzle on the cavity to heat the food. Such a steam intake method will cause the steam flow rate entering the cavity to be too fast, and the steam and air will be mixed, so that the time for exhausting the air will be too long, and the cooking speed will be slow. In the related art, the way of steam intake is single-side single-nozzle steam intake, which will cause the steam flow rate to be too fast, and the steam will fill the cavity for a long time.

To this end, the present application provides a steam distribution device 1 for cooking equipment, which aims to solve the problem of too fast flow rate of single-direction steam entering the cooking equipment in the related art, so as to improve the cooking effect.

Embodiments of the present application are described in detail below, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. It is intended to be used in the interpretation of this application.

1 to 4, according to some embodiments of the present application, the steam distribution device 1 for cooking equipment has a steam distribution chamber in the steam distribution device 1, and the steam entering the equipment can enter the steam distribution chamber first, so as to avoid the steam directly Entering the equipment cavity at an excessive flow rate. The steam distribution chamber has a steam inlet 101 and a steam outlet 102. Steam can enter the steam distribution chamber from the steam inlet 101 and be discharged from the steam outlet 102. The steam distribution chamber has the effect of dispersing the steam and slowing down the steam velocity. Further, the steam outlet 102 is configured as a strip shape, which can improve the steam outlet efficiency, and the steam inlet 101 and the steam outlet 102 are separated by a predetermined distance in the airflow direction, so that the steam entering the steam distribution chamber can be buffered in the steam distribution chamber , can further disperse the steam entering the steam distribution device 1, so as to effectively reduce the steam flow rate.

Specifically, after the steam enters from the steam inlet 101, it needs to flow through a certain distance to reach the steam outlet 102, so that the steam is continuously discharged from the steam outlet 102 in the direction of intake, so as to improve the steam distribution effect of the steam distribution device 1, and The steam outlet 102 is in the form of a strip, which can discharge more steam at the same time, increase the instantaneous steam output, and improve the uniformity of the steam output, so as to improve the cooking effect.

According to the steam distribution device 1 for cooking equipment according to the embodiment of the present application, by providing a strip-shaped steam outlet 102 on the steam distribution device 1, and the steam inlet 101 is arranged at a predetermined distance from the steam outlet 102, it can reduce the The steam flow rate improves the cooking effect, and the structure is simple and easy to construct.

In addition, the cross-sectional area of the steam distribution chamber may be larger than the cross-sectional area of the steam inlet 101 , that is, after the steam enters the steam distribution chamber from the steam inlet 101 , the volume increases. However, due to the increase of the volume, the flow rate of the steam will be reduced, thus avoiding the direct ejection of the steam and slowing down the flow rate of the steam.

In actual use, the steam first enters the steam distribution chamber from the steam inlet 101, and is discharged from the steam outlet 102 arranged at a certain distance during the flow process to disperse the steam, thereby reducing the steam flow rate and improving the uniformity of the steam entering the equipment cavity. sex. That is to say, by installing the steam distribution device 1, the steam can be buffered and dispersed in the steam distribution device 1 before entering the equipment cavity, combined with the low density of high-temperature steam, so that the steam entering the equipment cavity is structured like steam The structure of the wall is gradually pressed down so that the air in the cooking cavity 40 can be quickly discharged.

In addition, the space between the inlet of the steam (namely the steam inlet 101 ) and the outlet (namely the steam outlet 102 ) means that the steam needs to flow a certain distance from the inlet to the outlet. For example, the inlet and outlet can be arranged on different sides of the steam distribution chamber; the inlet and outlet can also be arranged on the same side wall of the steam distribution chamber, and the inlet and outlet also have a certain distance in the airflow direction. Certainly, the arrangement forms of the above-mentioned inlets and outlets in this application are only some specific implementations of this application, and are not intended to limit the scope of protection of this application.

Optionally, the steam outlet 102 may also be arranged in the form of multiple small openings at intervals, so as to reduce the steam flow rate and improve the steam outlet efficiency.

Referring to Fig. 1 and Fig. 2, optionally, the steam distributing device 1 is in the shape of a hollow strip, so as to construct a steam flow channel, which is beneficial for buffering and reducing the weight of the device. Further, the steam inlet 101 and the steam outlet 102 are respectively arranged on opposite side walls of the steam distribution device 1 . Thus, the steam can enter from one side of the device and be discharged from the other side, thereby improving the flow path of the airflow in the steam distribution chamber to effectively slow down the steam flow rate.

According to the foregoing, the steam inlet 101 and the steam outlet 102 are predetermined to be spaced apart, and the steam inlet 101 and the steam outlet 102 are separated on opposite side walls so that there is a larger distance between the steam inlet 101 and the steam outlet 102 . For example, the steam inlet 101 and the steam outlet 102 are arranged along the diagonal of the elongated device to increase the distance and time of steam circulation in the steam distribution chamber, thereby slowing down the flow velocity.

Optionally, the steam outlet 102 is in the shape of a strip extending in the same direction as the steam distributing device 1 to facilitate steam discharge. Specifically, the steam distribution chamber is roughly rectangular, and a long strip channel is constructed. When the steam circulates along the rectangular passage, the speed gradually slows down. During the process, the steam is gradually discharged from the steam outlet 102, which is beneficial to improving the steam outlet efficiency and steam outlet uniformity.

Of course, the steam outlet 102 in the present application can also be arranged in a strip shape perpendicular to the extension direction of the steam distribution device 1, or in a strip shape inclined to the extension direction of the steam distribution device 1. In addition, the steam outlet 102 in the application can also be It can be set in a wave shape, a cross shape, etc., and in this application, one steam outlet or multiple steam outlets can be set on the steam distribution device 1 . Likewise, one or more steam inlets in this application can also be provided.

Optionally, in the intake direction of the steam inlet 101, the steam inlet 101 and the steam outlet 102 are staggered, which is beneficial to slow down the steam flow rate and improve the uniformity of steam outlet. Specifically, after the steam enters from the steam inlet 101, it needs to flow through a certain distance to reach the steam outlet 102, and the steam outlet 102 is staggered in the direction of steam flow, so that the steam can be continuously discharged from the steam outlet 102 in the direction of the intake air, so that The strip-shaped steam outlet 102 continuously emits steam, which improves the steam distribution effect of the steam distribution device 1 , improves the uniformity of the steam output, and improves the cooking effect.

After the steam enters the steam distribution chamber from the steam inlet 101, it will not flow out directly from the steam outlet 102, which can avoid the problem of direct steam ejection. In addition, since the steam will not flow out from the steam outlet 102, the steam can be distributed evenly. The steam flows out from different positions of the elongated steam outlet 102, thereby improving the uniformity of steam outlet.

Optionally, the opening width of the steam outlet 102 is in the range of 5 mm to 10 mm, such as 6 mm, 7 mm or 9 mm, so as to improve the steam outlet efficiency and maintain a certain distance from the steam inlet 101. distance. Preferably, the opening width of the steam outlet 102 is 8mm. Of course, the opening width of the steam outlet 102 can also be 2 mm, 3 mm or 12 mm, etc., or several steam outlets 102 with an opening width of 2 mm can be arranged at intervals to improve the steam outlet efficiency, etc. The present application is not limited to this.

Optionally, the steam outlet 102 is in a straight shape to facilitate manufacturing and reduce costs. In addition, the straight shape is conducive to the discharge of steam, and can prevent steam from being directly sprayed into the equipment cavity, which is beneficial to reduce the steam flow rate and improve the uniformity and stability of steam output.

Optionally, the steam distribution device 1 can also be provided with a wind guide, that is, the edge of the steam outlet 102 is provided with a wind guide extending away from the steam distribution device 1, and the air guides on the upper edge and the lower edge of the steam outlet 102 can be arranged along the The horizontal direction extends toward the cooking cavity 40, and the air guides at the upper and lower edges are parallel to each other. It is also possible to control the position or area when the steam enters the cooking cavity 40 by changing the angle of the air guide. If possible, the air guide can be made of a material that can be bent appropriately, so as to adjust the conduction member under different usage conditions. The orientation of the cooking device 100 improves the flexibility and cooking effect of the cooking device 100 .

1 and 2, according to the steam distribution device 1 of the embodiment of the present application, the steam distribution device 1 is in the shape of a hollow strip, and the hollow part constitutes the steam distribution chamber, and the steam inlet 101 and the steam outlet 102 are respectively arranged on two opposite side walls , wherein the steam inlet 101 is set at the front end of the side wall of the device, and the steam outlet 102 is set at the rear end of the side wall of the device. Referring to FIG. 1 , the steam outlet 102 is an elongated opening extending from the rear end of the side wall of the device to the front end of the side wall, and the steam inlet 101 and the steam outlet 102 are staggered or arranged at a certain distance.

It should be noted that in this application, the steam outlet 102 is mainly in a rectangular shape as an example for illustration, but this is not a limitation to the scope of protection of the application, and the shape and arrangement of the steam outlet 102 can also be slightly modified in this application. Change, as long as the effect of slowing down the steam flow rate can be achieved. For example, the steam outlet 102 may also be arranged as a plurality of microholes, and the plurality of microholes and the steam inlet 101 are separately arranged on two side plates of the device and arranged in a staggered manner. Thus, the steam diffuses in the steam inlet cavity after entering from the steam inlet 101, and can enter the equipment cavity through multiple micropores during the diffusion process, so as to slow down the steam flow rate, improve the uniformity of steam output, and improve the cooking effect.

3 and 4, the cooking device 100 according to the embodiment of the present application includes: a box body 2, a steam distributing device 1 and a steam generating device, and a cooking cavity 40 is arranged in the box body 2 for placing food and performing cooking on the food. Cooking: the steam distribution device 1 is connected with the casing 2, the steam distribution device 1 is the aforementioned steam distribution device 1 for the cooking equipment, the steam outlet 102 of the steam distribution device 1 is connected with the cooking cavity 40, and the steam can flow from the steam distribution cavity Enter the cooking cavity 40 to heat the cooking cavity 40 or be used for cooking food, which is beneficial to improve the cooking effect; further, the steam generating device is connected with the casing 2, so that the steam generating device is integrated in the cooking device 100, and the steam generating device and The steam inlet 101 of the steam distributing device 1 is connected to send the generated steam into the cooking cavity 40 after reducing the flow rate, so as to improve the cooking effect.

Specifically, a cooking cavity 40 is constructed in the casing 2, and a steam generating device is provided on the casing 2, and the steam inlet 101 of the steam distribution device 1 communicates with the steam generating device, and the steam outlet 102 of the steam distribution device 1 communicates with the cooking cavity 40. . That is to say, the steam distributing device 1 is connected with the steam generating device and the cooking cavity 40, and the steam generated by the steam generating device is first dispersed and decelerated by the steam distributing device 1 and then sent to the cooking cavity 40, so that the flow rate of the steam entering the cooking cavity 40 is uniform , to improve the cooking effect.

According to the cooking device 100 of the embodiment of the present application, by setting the steam distributing device 1 , the flow rate of the steam can be reduced, the cooking effect can be improved, and the structure is simple to save cost.

Optionally, the steam distributing device 1 is arranged on the top of the cooking cavity 40, and the steam outlet 102 is configured to exit horizontally toward the top of the cooking cavity 40, so that after the steam enters the cooking cavity 40, it is gradually pressed down, and the cooking cavity 40 The air inside is quickly expelled. In addition, placing the steam distribution device 1 on the top of the cooking chamber 40 can make the cooking chamber 40 larger, which is convenient for the user to place food and increase the cooking space.

Referring to FIG. 3 , optionally, the top of the box body 2 has a convex hull 21 protruding outward, and the steam distribution device 1 is configured to discharge steam toward the convex hull 21 . Specifically, a part of the top wall of the casing 2 protrudes outwards to form a convex hull 21, and the steam distribution device 1 discharges steam toward the convex hull 21 on the one hand and gathers the steam at the convex hull 21, and then gradually sinks to dissipate the cooking cavity 40. The air is discharged; on the other hand, it is beneficial to increase the volume of the cooking cavity 40, which is convenient for users to use. Specifically, according to the cooking equipment 100 of the embodiment of the present application, the steam distributing device 1 is arranged on the left and right side walls of the convex hull 21, and the convex hull 21 and the steam distributing device 1 can be formed integrally or separately. When the package 21 and the steam distributing device 1 are integrally formed, an opening is provided on one side wall of the convex package 21 to form a steam inlet 101 .

Referring to Fig. 3, optionally, the steam generating device includes: a steam generator 31 and a conduit 32, the steam generator 31 is installed on the outer side of the box body 2, in order to save space, one end of the conduit 32 is connected to the steam generator 31 and another One end is connected to the steam inlet 101 of the steam distributing device 1 to transport the steam generated by the steam generator 31 into the steam distributing chamber through the conduit 32 . Optionally, the conduit 32 may be a silicone tube to reduce costs and improve durability.

Further, according to actual application conditions, multiple steam distribution devices 1 can also be provided. For example, when two steam distribution devices 1 are arranged on the top of the box body 2, a shunt pipe can be provided, and the two ends of the shunt pipe are respectively connected to the conduit 32 and the other. The steam inlet 101 of the steam distribution device 1 is connected. Alternatively, the conduit 32 and the branch pipe may be integrally formed.

Optionally, at least two steam distribution devices 1 can be provided on the top of the box body 2, which can increase the steam intake of the cooking cavity 40, and the gas outlet directions of the at least two steam distribution devices 1 cross or face each other. Specifically, the steam generated by the steam generating device can be discharged through the steam outlets 102 on the two steam distributing devices 1 oppositely arranged, and collide to decelerate, then gradually sink under the action of gravity, and the air in the cooking cavity 40 The rapid discharge is conducive to rapid heating of the cooking cavity 40, which is beneficial to increasing the cooking speed, thereby improving the working efficiency of the cooking device.

For example, two steam distribution devices 1 are installed on both sides of the convex hull 21 on the top of the box body 2, and each steam distribution device 1 has a steam inlet 101 and a rectangular steam outlet 102, and the directions of the steam outlets 102 are opposite to each other. , the steam generated from the steam generator 31 shoots out through the steam outlets 102 on the two steam distribution devices 1 and collides to slow down, then gradually sinks under the action of gravity, and the air in the cooking cavity 40 is quickly discharged.

3 and 4, according to the cooking device 100 of the embodiment of the present application, the box body 2 is square, the steam generator 31 is arranged on the left side wall of the box body 2, and the steam outlet of the steam generator 31 is located at the 31, the conduit 32 is connected to the upper end of the steam generator 31. The conduit 32 extends upward to the top of the box body 2, and the high-temperature steam is easy to rise. One side wall of the bag 21 is directly connected to the steam inlet 101 . Wherein, the position of the steam outlet of the steam generator 31 and the steam inlet 101 can be set on the same side, so that the conduit 32 can directly connect the two. And prolong the service life of conduit 32.

The following describes a steam distribution device 1 and a cooking device 100 according to a specific embodiment of the present application with reference to the accompanying drawings.

Referring to FIG. 1 to FIG. 4 , a cooking device 100 according to an embodiment of the present application includes: a cabinet 2 , a steam generating device and a steam distributing device 1 . Specifically, there is a cooking chamber 40 in the box body 2, and the top of the box body 2 has an upwardly protruding convex hull 21. The steam generating device includes a steam generator 31 and a conduit 32; the steam distribution device 1 has a steam inlet 101 and a steam outlet 102. . More specifically, the box body 2 is rectangular, and the top of the box body 2 has an upwardly protruding convex hull 21, and the convex hull 21 is also in a rectangular shape, and the steam distribution device 1 is arranged on the left side wall in the convex hull 21; The device 31 is installed on the left side wall of the box body 2, and one end of the conduit 32 is connected to the top of the steam generator 31 and the top end is connected to the steam inlet 101, so as to send the steam into the steam distribution chamber, and discharge it from the steam outlet 102 to the cooking chamber 40 after deceleration to achieve The effect of rapid deoxygenation and heating of the cooking chamber to 40°C.

In actual application, the steam generator 31 generates steam by generating heat to heat water, and the generated steam enters the connected silicone tube through the steam outlet of the steam generator 31, and then passes through the steam distributor installed on the top of the side of the box body 2. The device 1 finally enters the cavity to heat the food. Specifically, the steam distribution device 1 is mainly composed of a steam inlet 101 and a steam outlet 102. The steam inlet 101 is on the back of the steam distribution device 1 and is connected to the steam generator 31 through a conduit 32. The steam outlet 102 is formed by a 8 mm wide slit. At the same time, there is a certain distance between the steam inlet 101 and the steam outlet 102, which can prevent the steam generated from the steam generator 31 from being sprayed directly into the chamber due to too fast flow rate. Different from the single-nozzle steam inlet method in the related art, this steam inlet method can effectively reduce the flow rate of the steam, so that the steam produces a layered distribution and slowly sinks to fill the entire cavity, achieving the effect of rapid oxygen exhaust. That is to say, compared with the related technology, the cooking equipment 100 of the embodiment of the present application changes the original nozzle direct connection method to the steam distribution device 1 to split the flow, so that the steam flow rate entering the cooking cavity 40 is significantly slowed down, which can effectively reduce the mixing of steam and air. To a greater extent, the speed at which the steam fills the cooking chamber 40 is increased, so that the cooking environment heats up quickly, and the purpose of fast cooking is achieved.

Referring to Fig. 5 to Fig. 8, according to some other embodiments of the steam distributing device 1 for cooking equipment of the present application, the steam distributing chamber has a steam inlet 101 and at least two steam outlets 102, and the steam distributing chamber has the effect of dispersing steam. That is to say, the number of steam outlets 102 may be greater than the number of steam inlets 101, so that when steam enters from one steam inlet 101 and exits, it needs to be discharged from two or more steam outlets 102 to achieve a splitting effect.

Further, the steam inlet 101 and the steam outlet 102 are separated by a predetermined distance in the airflow direction, and at least two steam outlets 102 are at least partially staggered from the steam inlet 101 in the direction of the steam inlet 101 . Thus, the steam entering the steam distributing device 1 can be further dispersed, so as to effectively reduce the steam flow rate. Specifically, after steam enters from the steam inlet 101, it needs to flow through a certain distance to reach the steam outlet 102. The steam outlet 102 is staggered in the flow direction, so that the steam is continuously discharged from the steam outlet 102 in the air intake direction, so that two or more steam outlets 102 have steam to be discharged, and the steam distribution effect of the steam distribution device 1 is improved, and the steam outlet 102 interval settings can increase the instantaneous steam output and improve the uniformity of steam output to improve the cooking effect.

According to the steam distributing device 1 for cooking equipment of the embodiment of the present application, by setting at least two steam outlets 102 on the steam distributing device 1, and the steam outlets 102 are arranged at intervals and staggered along the airflow direction, the flow velocity of the steam can be reduced and the steam can be improved. The cooking effect is high, and the structure is simple and easy to construct.

In actual use, the steam first enters the steam distribution chamber from the steam inlet 101, and the steam is discharged from the steam outlets 102 arranged at intervals and staggered during the flow process to disperse the steam, thereby reducing the steam flow rate and increasing the steam entering the equipment cavity uniformity. That is to say, by installing the steam distribution device 1, the steam can be buffered and dispersed in the steam distribution device 1 before entering the equipment cavity, combined with the low density of high-temperature steam, so that the steam entering the equipment cavity is structured like steam The structure of the wall is gradually pressed down so that the air in the cooking cavity can be quickly discharged.

Optionally, a plurality of steam outlets 102 may also be arranged at intervals, and a plurality of steam outlets 102 may be arranged in groups, and the interval between two adjacent groups is relatively large.

Referring to Fig. 1 and Fig. 2, optionally, the steam distributing device 1 is in the shape of a hollow strip, so as to construct a steam flow channel, which is beneficial for buffering and reducing the weight of the device. Further, the steam inlet 101 and the steam outlet 102 are separately arranged on the opposite side walls of the steam distribution device 1, so that the steam can enter from one side of the device and be discharged from the other side, so as to improve the circulation path of the airflow in the steam distribution chamber, Thereby effectively slowing down the steam flow rate. According to the above, the steam inlet 101 and the steam outlet 102 are arranged at intervals, and the steam inlet 101 and the steam outlet 102 are separately arranged on the opposite side walls, so that there is a relatively small gap between the steam inlet 101 and the steam outlet 102 that is farthest from the steam inlet 101. big distance. For example, the steam inlet 101 and the steam outlet 102 are arranged along the diagonal of the elongated device to increase the distance and time of steam circulation in the steam distribution chamber, thereby slowing down the flow velocity.

Further, at least two steam outlets 102 are arranged at intervals along the extension direction of the steam distribution device 1, so as to improve the uniformity of steam entering the equipment cavity from the steam distribution chamber, at least two outlets discharge steam respectively, and the position of the steam discharge The spaced apart can facilitate the steam to rapidly heat up the equipment cavity, facilitate the cooking device to heat the food stably, and improve the cooking effect.

1 and 2, optionally, at least two steam outlets 102 are adjacent to the first end surface 11 in the steam distribution device 1, and at least two steam outlets 102 are spaced apart from the second end surface 12 in the steam distribution device 1 by a predetermined distance. The steam inlet 101 is arranged close to the second end surface 12 in the steam distribution device 1 to improve the buffering effect of the steam in the steam distribution chamber.

Specifically, the first end face 11 and the second end face 12 can be located at both ends of the steam distribution device 1, and the steam inlet 101 and the steam outlet 102 are respectively arranged on the opposite side walls of the steam distribution device 1, and the steam outlet 102 and the steam inlet 101 are respectively adjacent to the first end face 11 and the second end face 12, that is, the two ends of the elongated steam distribution device 1, so that the distance between the steam outlet 102 and the steam inlet 101 in the airflow direction is relatively long, thereby improving the buffering effect.

1, optionally, the periphery of each steam outlet 102 is connected with an air guide tube 13, and the air guide tube 13 is connected to the periphery of the steam outlet 102, and the wind direction of the air guide tube 13 is the same as that of the steam outlet 102. Extending to or having a predetermined angle included angle. By setting the air guide tube 13 at the steam outlet 102, the steam can be discharged from the air guide tube 13, and the air guide tube 13 can play a certain guiding effect. When the steam circulates in the steam distribution chamber and is discharged from the steam outlet 102, it may be necessary to The direction is changed in the air guide tube 13, so as to further slow down the flow velocity and improve the uniformity of the steam entering the equipment cavity. In addition, the position or area when the steam enters the device cavity can be controlled by setting or changing the angle of the air guide tube 13. For example, the air guide tube 13 can be made of a material that can be bent appropriately, so as to adjust the guide tube under different usage conditions. direction to improve cooking results.

Optionally, the air guide tube 13 and the steam outlet 102 may be integrally formed to facilitate manufacture. It is also possible that the air guide tube 13 and the steam outlet 102 are formed separately, so as to facilitate maintenance and replacement. For example, the outer circumference of the position where the air guide tube 13 cooperates with the steam outlet 102 is provided with a screw thread, and the air guide tube 13 is threaded when assembling. The air guide tube 13 is installed on the device, and may also be connected by screws and bolts.

Optionally, the steam outlet 102 may also be arranged as a plurality of microholes, and the plurality of microholes and the steam inlet 101 are separately arranged on the two side plates of the device and arranged in a staggered manner. Thus, the steam diffuses in the steam inlet cavity after entering from the steam inlet 101, and can enter the equipment cavity through multiple micropores during the diffusion process, so as to slow down the steam flow rate, improve the uniformity of steam output, and improve the cooking effect.

1 and 2, according to the steam distribution device 1 of the embodiment of the present application, the steam distribution device 1 is in the shape of a hollow strip, and the hollow part constitutes a steam distribution chamber, and a side wall of the device is provided near the second end surface 12. The steam inlet 101 is provided with a steam outlet on the side wall opposite to the side wall where the steam inlet 101 is located. The steam outlet 102 is adjacent to the first end face 11, and a plurality of steam outlets 102 are arranged at intervals in the direction of the second end face 12. The steam outlet The arrangement length of 102 on the side wall can be extended, but the steam outlet 102 and the steam inlet 101 should be staggered as much as possible to ensure the effect of slowing down the steam flow rate. The diameter of the steam inlet 101 can be saved larger than that of the steam outlet 102 , and the periphery of the steam outlet 102 is provided with an air guide tube 13 extending away from the steam outlet 102 .

It should be noted that in this application, the steam outlet 102 is mainly in a circular shape and multiple steam outlets 102 are arranged in a straight line as an example for illustration, but this is not a limitation to the scope of protection of this application. In this application, it is also possible to use The shape and arrangement of the steam outlets 102 may be slightly changed, as long as the effect of slowing down the steam velocity can be achieved.

Referring to FIG. 9 to FIG. 11 , cooking equipment 100 according to some embodiments of the present application. A cooking cavity 40 is formed in the box body 2 . The steam distributing device 1 can be a steam distributing pipe 21 . The steam distributing pipe 21 is provided with a steam inlet 211 and a plurality of steam distributing holes 212 arranged at intervals. The steam distributing holes 212 communicate with the cooking cavity 40 .

Specifically, the steam first enters the steam distribution pipe 21 through the steam inlet 211, flows along the length direction of the steam distribution pipe 21 under the guidance of the steam distribution pipe 21, and gradually passes through the steam distribution pipe 21 during the flow process in the steam distribution pipe 21. A plurality of steam distribution holes 212 on the pipe 21 enter the cooking cavity 40 .

According to the steam inlet structure 1 of the embodiment of the present application, by setting the steam distribution pipe 21, on the one hand, the steam distribution pipe 21 can guide the incoming steam to facilitate the dispersion of the steam in its length direction; on the other hand, the steam distribution pipe 21 can use The plurality of steam distribution holes 212 facilitate the distribution of steam into the cooking cavity 40 . After the steam enters through the steam inlet 11, it can first be dispersed in the steam distribution pipe 21, and then enter the cooking cavity 40 through a plurality of steam distribution holes 212, so that the steam can be evenly dispersed into the cooking cavity 40, so as to avoid excessive concentration of the steam. The steam forms an integral steam layer, and the air is squeezed out without being mixed with the air as the steam is filled, so that the steam can be quickly filled into the cooking cavity 40, and the filling efficiency of the steam is improved, thereby improving the steam intake efficiency of the steam intake structure 1, and improving Cooking cavity 40 heating speeds.

Moreover, by setting the steam distribution pipe 21 to disperse the steam, compared with the technical solution of setting an orifice plate to disperse the steam, the manufacturing difficulty and manufacturing cost of the steam distribution pipe 21 are lower, thereby reducing the manufacturing difficulty of the steam inlet structure 1 as a whole and manufacturing costs.

Therefore, the steam intake structure 1 according to the embodiment of the present application has the advantages of high steam intake efficiency and fast filling speed.

The following describes the steam intake structure 1 according to a specific embodiment of the present application with reference to the accompanying drawings.

In some specific embodiments of the present application, as shown in FIGS. 9-11 , the steam intake structure 1 according to the embodiment of the present application includes a box body 2 and a steam distribution pipe 21 .

Specifically, as shown in FIGS. 9-11 , a plurality of steam distribution holes 212 are arranged at intervals along the length direction of the steam distribution pipe 21 . This can facilitate the dispersion of the steam in the length direction of the steam distribution pipe 21 .

More specifically, the steam distribution pipe 21 is oriented along the length direction of the cooking cavity 40 . This can facilitate the distribution of the steam in the length direction of the cooking cavity 40 and facilitate filling of the cooking cavity 40 with steam.

Advantageously, as shown in FIGS. 9 and 10 , the steam distribution pipe 21 is arranged on the upper part of the box body 2 (the up-down and front-back directions are shown by the arrows in the figure and are only for the convenience of expression, not for the limitation of the actual installation direction). In this way, the settling of the steam can be used to gradually fill the cooking cavity 40 , improving the filling efficiency of the steam to the cooking cavity 40 .

More advantageously, as shown in FIG. 9 and FIG. 10 , the steam distribution pipe 21 is arranged at the rear of the box body 2 and the steam distribution hole 212 faces forward. In this way, the steam will gradually settle under the action of gravity while flowing along the spraying direction after being sprayed out through the steam distribution hole 212, so as to facilitate filling of the cooking chamber 40 from top to bottom by steam and improve steam filling efficiency.

Fig. 9 and Fig. 10 show a steam intake structure 1 according to a specific example of the present application. A steam inlet chamber 20 is also formed in the box body 2 , and the steam inlet chamber 20 is located above the cooking cavity 40 and communicated with the cooking cavity 40 . This can facilitate the arrangement of the steam distribution pipe 21 .

Optionally, as shown in FIG. 9 and FIG. 10 , the steam distribution pipe 21 is arranged at the junction of the rear wall and the top wall of the steam inlet cavity 20 . This can facilitate the arrangement of the steam distribution pipe 21 .

Specifically, as shown in FIG. 9 , the lower surface of the steam inlet cavity 20 is open to communicate with the cooking cavity 40 . This can facilitate the communication between the steam inlet cavity 20 and the cooking cavity 40 and avoid hindering the flow of steam.

Advantageously, as shown in FIGS. 9-11 , there is a flange 213 extending out of the steam distribution pipe 21 around the steam distribution hole 212 . In this way, the steam can be guided by the flange 213 , so that the steam can flow farther in the direction of the steam distribution hole 212 , thereby improving the filling efficiency of the cooking cavity 40 .

More specifically, as shown in FIGS. 9-11 , the steam inlet hole 211 is formed on at least one end surface of the steam distribution pipe 21 . This can facilitate the communication of the steam distribution pipe 21 with the steam source.

More advantageously, the distance between every two adjacent steam distribution holes 212 gradually increases from being close to the steam inlet hole 211 to away from the steam inlet hole 211 . As the steam enters the steam distribution pipe 21, the flow rate will decrease with the increase of the flow distance. By reasonably arranging the distance between the steam distribution holes 212, the steam can be easily dispersed into the cooking cavity 40, thereby improving the steam filling of the cooking cavity 40. efficiency.

Further, the diameter of each steam distribution hole 212 gradually increases from the direction close to the steam inlet hole 211 to the direction away from the steam inlet hole 211 . As the steam enters the steam distribution pipe 21, the flow rate will decrease with the increase of the flow distance. By reasonably setting the aperture of the steam distribution hole 212, it is convenient for the steam to enter the cooking cavity 40 evenly and dispersedly, thereby improving the steam filling efficiency of the cooking cavity 40.

Optionally, as shown in FIG. 9 and FIG. 11 , the steam distribution pipe 21 is a square pipe, and the steam distribution hole 212 is a round hole. This can facilitate the manufacture of the steam distribution pipe 21 and the formation of the steam distribution hole 212 .

Specifically, the steam inlet may communicate with a steam source. The source of steam can be provided by a heating device.

A heating device according to an embodiment of the present application is described below.

The heating device according to the embodiment of the present application includes a water tank, electrodes, a conductivity detection device and a controller.

The electrodes are used to heat the water in the tank. The conductivity detecting device detects the conductivity of the water in the water tank. The controller is respectively electrically connected with the electrodes and the conductivity detection device to adjust the voltage of the electrodes according to the conductivity.

According to the heating device of the embodiment of the present application, by setting electrodes, the electrodes are used to heat the water in the water tank. Compared with the heating device in the related art, the water itself is heated as a resistive medium, which can reduce the accumulation of scale and avoid affecting the heating device. High heating efficiency, avoiding blockage or even burning of the heating device.

Moreover, due to the different water quality, the conductivity of the water body is also different when the water body is used as a resistive medium, resulting in different heating power of the water body under the same voltage, and it is difficult to control the heating power of the water body. By setting the conductivity detection device and the controller, and using the controller to adjust the voltage of the electrodes according to the conductivity, it is easier to control the heating power than in the related art, and avoid the heating effect being affected by the heating power being too large or too small.

Therefore, the heating device according to the embodiment of the present application has advantages such as not easy to accumulate scale, high heating efficiency, and good heating effect.

Specifically, there are two electrodes arranged at intervals. In this way, the water body between the two electrodes can be used to form a resistive medium, and the water body between the two electrode pairs can be energized to directly heat the water body between the two electrodes to avoid scale accumulation.

Optionally, the two electrodes are arranged at intervals along the horizontal direction. This can facilitate the arrangement of the electrodes, so that the two electrodes can enter or exit water at the same time when the water level changes.

Specifically, when the water level in the water tank drops below the electrodes, the two electrodes are no longer connected by the water body, and the electrical connection between the two electrodes is naturally disconnected to avoid dry heating. In this way, not only can dry burning be avoided, the reliability of the heating device can be ensured, but also the protection device can be omitted to reduce the cost.

More specifically, the electrodes are installed in the water tank through the mounts. This facilitates the installation of the electrodes in the tank and facilitates the orientation and positioning of the electrodes.

In a specific embodiment, the mounting seat is located on the bottom wall of the water tank, and the electrodes are oriented vertically. In this way, the electrical connection between the electrodes can be disconnected when the water level drops close to the bottom wall, so as to facilitate the control of the volume of the water tank.

In another specific embodiment, the mounting seat is located on the side wall of the water tank adjacent to the bottom wall, and the electrodes are oriented in a horizontal direction. In this way, the electrical connection between the electrodes can be disconnected when the water level drops close to the bottom wall, so as to facilitate the control of the volume of the water tank.

Specifically, the heating device further includes a frequency converter, and the controller is electrically connected to the electrodes through the frequency converter. Therefore, the frequency converter can be used to adjust the voltage of the electrode, so as to facilitate the control of the electrode voltage.

Optionally, the conductivity detection device includes a TDS detection device. Therefore, the conductivity of the water body can be fed back according to the TDS detection device, so as to calculate the voltage of the electrode according to the required power.

More specifically, the controller adjusts the voltage of the electrodes according to the detection value of the TDS detection device so that the voltage of the electrodes is proportional to the detection value. What needs to be understood here is that "the voltage of the electrode is proportional to the detection value" is without considering the target power. In other words, under the condition that the target power is constant, the voltage of the electrode needs to be proportional to the detection value. In this way, the heating power of the heating device can be easily controlled, and the heating effect can be avoided from being too high or too low.

The water tank is provided with a steam outlet. In this way, the steam generated after the water in the water tank is heated by the electrodes can be discharged through the steam outlet, and the steam discharged from the steam outlet is further introduced into the cooking cavity of the cooking appliance, so that steam cooking of food can be realized.

Advantageously, the steam outlet is located in the upper part of the water tank. This can facilitate the control of the maximum water storage capacity of the water tank, facilitate the control of the volume of the water tank, and facilitate the discharge of steam.

In one embodiment, the steam outlet may be formed on the top wall of the water tank.

In another embodiment, the steam outlet may be formed on the side wall of the tank adjacent to the top wall.

Optionally, the electrodes are graphite electrodes. This not only reduces the accumulation of scale on the electrodes, but also reduces costs.

Specifically, the electrodes are plate-shaped or column-shaped. This facilitates heating of the water body.

The following describes the working process of the heating device according to the embodiment of the present application.

When the water storage in the water tank is insufficient, there is an open circuit between the two electrodes, the heating device is automatically turned off, and no steam is generated.

When water is added into the water tank until the electrode is turned on, the heating device is turned on. The graphite electrode uses the resistance of the water body in the water tank itself, and the water body itself acts as a resistance medium to heat the water body to generate steam.

At the same time, the TDS detection device detects the detection value of TDS of water, and feeds it back to the controller. The controller calculates the conductivity according to the TDS value, reflects the resistivity of the water body, and calculates the voltage value according to the target power value, and feeds it back to the frequency converter to adjust the output. Voltage. Under different water hardness conditions, the heating body can also be adjusted with variable power.

Specifically, the cooking cavity can also be connected with a steam inlet device and an air extraction device. The steam inlet device can communicate with the heating device or consist of the heating device.

The air extraction device and the steam inlet device operate simultaneously for at least a period of time.

According to the steam circuit system of the embodiment of the present application, the air in the cooking cavity can be drawn out by setting an air extraction device, so as to prevent the retained air from affecting the speed of steam intake and improve the steam intake efficiency of the steam circuit system.

Specifically, when used in a steam cooking appliance, the rate at which the steam fills the cooking cavity can be increased, and the cooking efficiency and cooking effect can be improved.

Moreover, by making the air extraction device and the steam intake device operate simultaneously for at least a period of time, in other words, the steam circuit system simultaneously extracts air and enters steam for at least a period of time, compared with the technical solution of first extracting air and then entering air in the related art, It can reduce the time for users to wait for air extraction, shorten the total time required for steam intake, and improve the efficiency of steam intake.

Specifically, when used in a steam cooking appliance, the total time required for steam filling can be shortened, the user's waiting time can be reduced, and the cooking efficiency can be improved.

Therefore, the steam circuit system according to the embodiment of the present application has the advantages of fast steam intake speed and high steam intake efficiency.

Specifically, the cooking cavity has an air extraction hole and a steam intake hole, the air extraction device communicates with the cooking cavity through the air extraction hole, and the steam intake device communicates with the cooking cavity through the steam intake hole. This can facilitate the communication of the steam inlet device and the air extraction device with the cooking cavity of the casing.

Advantageously, the steam inlet hole is arranged at the upper part of the box body, and the air extraction hole is arranged at the lower part of the box body. In this way, the steam inlet hole can be kept away from the air extraction hole, so as to prevent the air extraction device from extracting the steam that has just entered the cooking cavity, thereby avoiding affecting the steam intake efficiency.

More advantageously, one of the steam inlet hole and the air extraction hole is arranged on the side wall of the cooking chamber and the other is arranged on the rear wall of the cooking chamber. In this way, the steam inlet hole can be kept away from the air extraction hole, so as to prevent the air extraction device from extracting the steam that has just entered the cooking cavity, thereby avoiding affecting the steam intake efficiency.

Specifically, the air extraction device extracts air from the cooking cavity during at least a part of the time during which the food is cooked in the cooking cavity. In this way, the steam intake efficiency of the steam circuit system can be improved during the cooking stage, thereby improving the cooking efficiency.

In a specific embodiment of the present application, the steam circuit system further includes a temperature detection device for detecting the temperature in the cooking cavity, and the temperature detection device communicates with the air extraction device. In this way, the start-stop timing of the air extraction device can be controlled according to the temperature in the cooking cavity.

Specifically, the air extraction device stops running when the detection value of the temperature detection device is greater than or equal to a predetermined value. In this way, the air extraction can be stopped when the temperature in the cooking cavity reaches the desired temperature, so as to avoid affecting the subsequent cooking effect.

In another specific embodiment of the present application, the steam circuit system further includes a timing device, and the timing device stops the air extraction device after the air extraction device runs for a predetermined time. Thus, the stop timing of the air extraction device can be controlled by timing, so as to avoid affecting the subsequent cooking effect.

Specifically, the steam circuit system further includes a controller, and the controller communicates with the steam inlet device and the air extraction device respectively. This can facilitate the control of the operating timing of the steam inlet device and the air extraction device.

More specifically, the controller controls the steam inlet device and the air extraction device to operate simultaneously when cooking starts. In other words, after the cooking appliance receives the cooking instruction, the steam inlet device and the air extraction device operate at the same time, and the cooking cavity enters and extracts air at the same time, thereby improving the steam intake efficiency of the steam circuit system.

Optionally, the air extraction device is a one-way air pump. This facilitates the extraction of air from the cooking chamber.

The following describes the working process of the steam circuit system according to the specific embodiments of the present application.

After the cooking utensil receives the cooking instruction, the steam inlet device and the exhaust device operate simultaneously, the cooking cavity enters steam and extracts air at the same time, the steam gradually fills the cooking cavity, the temperature in the cooking cavity increases gradually with the filling of steam, and the temperature detection device real-time The temperature in the cooking cavity is detected, and when the temperature reaches a predetermined value, it indicates that the steam in the cooking cavity is filled to a required level, and the air extraction device stops running to avoid affecting the subsequent cooking process.

The following describes a method for controlling a cooking appliance according to an embodiment of the present application, including the following steps:

When starting to cook, feed steam into the cooking cavity of the cooking utensil, and pump air into the cooking cavity;

When the temperature of the cooking cavity is greater than or equal to a predetermined temperature, the suction is stopped.

The cooking appliance according to the embodiment of the present application has the advantages of fast steam intake speed and high steam intake efficiency.

Pumping is stopped after a predetermined time has elapsed.

A cooking appliance according to an embodiment of the present application is described below. The cooking appliance according to the embodiment of the present application includes the steam intake structure 1 according to the above-mentioned embodiments of the present application.

The cooking appliance according to the embodiment of the present application has advantages such as high cooking efficiency by utilizing the steam intake structure 1 according to the above-mentioned embodiment of the present application.

The cooking appliance is a steam cooking appliance.

12 to 13, according to other embodiments of the cooking utensils of the present application, the steam distribution device can be an air inlet pipe 22, at least a part of the air inlet pipe 22 extends into the cooking cavity 40 and is located at the upper part of the cooking cavity 40, at least a part A plurality of steam outlets 102 are provided on the top, so as to divide the steam during the steam intake pipe 22 discharges into the cooking cavity 40, and increase the coverage area of the steam discharged from the intake pipe 22, so as to further reduce the flow velocity of the steam, and , the steam will form a stable steam layer on the upper part of the cooking cavity 40, and the steam layer can slowly move from top to bottom to stably discharge the air in the cooking cavity 40 from the bottom of the cooking cavity 40, thus reducing the The mixing degree of the steam and the air improves the discharge speed of the air, thereby improving the heating efficiency of the cooking cavity 40 .

Because the density of steam is lower than the density of air, therefore, air inlet pipe 22 is arranged on the upper side of cooking chamber 40, so that steam can be filled with whole cooking equipment 100 from top to bottom, and simultaneously the original in cooking chamber 40 The air is exhausted from the cooking device 100 to further reduce the degree of mixing of steam and air, and increase the speed at which the steam fills the cooking cavity 40, so as to increase the temperature rise rate of the environment in the cooking cavity 40 and reduce the cooking time of the cooking device 100.

According to the cooking device 100 of the embodiment of the present application, the cooking device 100 can reduce the flow rate of steam flowing into the cooking cavity 40, and can reduce the degree of mixing of steam and air in the initial stage of cooking, so as to increase the speed at which the steam fills the cooking cavity 40, thereby The ambient temperature in the cooking cavity 40 can be rapidly increased to reduce the cooking time of the cooking device 100 for cooking food, thereby achieving the purpose of fast cooking.

12 and 13, there are multiple air intake pipes 22, so that the steam flowing out of the steam generator can be divided by multiple air intake pipes 22, so as to reduce the flow rate of steam flowing into the cooking cavity 40, and, A plurality of intake pipes 22 are arranged at intervals, and the steam outlets 102 on the plurality of intake pipes 22 are arranged to be staggered from each other, so as to avoid the steam discharged from the steam outlets 102 on two adjacent intake pipes 22 from colliding with each other and resulting in a faster flow velocity. The turbulent flow makes the upper part of the cooking cavity 40 form a stable steam layer.

Referring to Fig. 13, there are multiple steam outlets 102 on each air intake pipe 22, so as to divide the steam during the process of the air intake pipe 22 discharging steam into the cooking cavity 40, and increase the coverage area of the steam discharged from the air intake pipe 22, Thereby, the flow velocity of steam can be further reduced, so as to reduce the degree of mixing of steam and air, and increase the speed of filling the cooking chamber 40 with steam, and at least a part of a plurality of steam outlets 102 is opened on the peripheral wall of the air inlet pipe 22, so that For the setting of more steam outlets 102.

Further, part of the steam outlet 102 located on the peripheral wall of the air inlet pipe 22 is opened towards the top wall 110 of the box body 2, so that the steam flow flowing in from the steam outlet 102 first passes through the blocking of the top wall 110, and then flows downward after slowing down. To further reduce the steam flow rate.

As a preferred embodiment, with reference to FIG. 13 , some of the steam outlets 102 on the peripheral wall of the air inlet pipe 22 are equally spaced, so that the amount of steam discharged from each steam outlet 102 is more uniform, so that each steam that enters the cooking chamber 40 The density and flow rate of the steam at the position are more uniform, so that all parts of the cooking chamber 40 can be evenly heated, so that the cooking device 100 has better heating performance.

According to some embodiments of the present application, since the steam flow velocity near the intake end of the intake pipe 22 is faster, and the steam flow velocity away from the intake end is slower, that is, as the distance between the intake hole 21 and the intake end is farther, the steam Therefore, the diameter of the steam outlet 102 near the intake end of the intake pipe 22 is set smaller than the diameter of the steam outlet 102 away from the intake end of the intake pipe 22, so that the flow of the steam flowing out from each steam outlet 102 The speed is the same, so that the steam flow speed at each position in the same plane is uniform, so that the steam can form a stable steam layer on the upper part of the cooking cavity 40, so that the steam layer can move downward evenly and stably, to further reduce the steam flow rate. The degree of mixing with the air increases the speed at which the steam fills the cooking cavity 40, and can also make the steam density in the cooking cavity 40 more uniform everywhere, so as to ensure that the cooking cavity 40 can be heated evenly everywhere, so that the cooking device 100 can treat the food The heating effect is better.

As shown in Figure 13, a plurality of intake pipes 22 are arranged flush in the same transverse plane (wherein, the transverse direction is a direction perpendicular to the height direction of the box body 2), and a plurality of intake pipes 22 are arranged in parallel, so that in the same plane The steam flow rate tends to be consistent, so that the steam can further form a stable steam layer, so that it is more convenient to fill the cooking cavity 40 evenly, and discharge the air in the cooking cavity 40 stably.

As shown in Figure 12, at least a part of the top wall 110 protrudes outwards to form a protruding portion 111, and the air inlet pipe 22 is penetrated inwardly from the peripheral wall of the protruding portion 111, so that the setting of the steam interlayer chamber and the air inlet pipe 22 does not occupy the cooking space. The cooking space of the device 100 is used for cooking, so that the cooking cavity 40 can be set larger, so as to further increase the volume of the cooking device 100 .

Further, a plurality of air intake pipes 22 are penetrated into the box body 2 from different directions of the surrounding wall, so that the steam discharged from the air intake pipes 22 can fill the cooking cavity 40 more evenly, thereby making the steam density in the cooking cavity 40 more uniform, In order to form a stable steam layer, the steam density in the cooking cavity 40 can be made more uniform, so as to ensure uniform heating in the cooking cavity 40, so that the cooking device 100 has a better heating effect on food.

According to some embodiments of the present application, the steam generator is composed of a water pipe and a heating element, and the liquid water is converted into water vapor in the water pipe, and the water vapor is delivered to the interior of the steam appliance, so that the heated water vapor can be heated by the steam The food inside the appliance is heated and cooked. Optionally, the heating element is arranged 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 heated water pipe or directly heat the liquid water so that it is converted from liquid water to steam. That is, the heating element can be arranged inside or outside the water pipe, or both inside and outside the water pipe, so as to improve the heating efficiency and thus the water vapor generation efficiency.

Further, the water pipe is constructed in a form that can expand and contract with the change of the temperature it is subjected to. Since the temperature of the water pipe will change during the operation of the steam generator, that is, the heater continues to heat the water pipe, which will cause the temperature of the water pipe to continue to rise. And when cold water flows into the water pipe, the temperature of the water pipe will decrease temporarily, so the water pipe will realize continuous automatic expansion and contraction with the change of temperature, and because the expansion and contraction of the water pipe will change the inner wall area of the water pipe, so the accumulated on the inner wall of the water pipe The scale will fall off the inner wall of the water pipe during the expansion and contraction process of the water pipe, and will be discharged out of the water pipe along with the flow of water. Therefore, there is no need to manually add cleaning substances such as citric acid to clean the scale in the water pipe, so that the scale in the steam generator can be cleaned more easily. It is convenient and avoids the damage of the steam generator caused by the accumulation of scale in the water pipe.

Moreover, since the embodiment of the present application adopts the form of a channel-type steam generator with heating elements and water pipes, the overall structure can be made flatter, the overall size is smaller, the requirements for installation space are lower, and it is easier to arrange and can meet the level of Or side standing and other installation requirements.

According to some embodiments of the present application, the water pipe is adapted to elongate as its temperature increases and shorten as its temperature decreases, that is, during the operation of the steam generator, the water pipe is heated The temperature rises gradually under the heating of the parts, and the water pipe will gradually elongate with the gradual increase of the temperature. When the steam generator stops heating, the heating part stops heating the water pipe, and the temperature of the water pipe will gradually decrease to room temperature. The water pipe will gradually shorten as the temperature decreases, or, during normal heating, the water flow in the water pipe will quickly take away the heat of the water pipe, and the water pipe will shorten with the sudden drop in temperature.

Therefore, during the operation of the steam generator, the water pipe will expand and contract multiple times, and the scale attached to the inner wall will be separated during the expansion and contraction process, so that the scale can be discharged out of the water pipe together with the water flow, thereby avoiding the accumulation of scale and improving the quality of life. the safety of the steam generator.

According to some embodiments of the present application, the water pipe is configured as a memory alloy piece. Memory alloy is a material composed of two or more metal elements. Memory alloy parts have a shape memory effect through thermoelasticity and martensitic phase transformation and their inversion. Specifically, the water pipe has a two-way memory effect, so that the water pipe can be elongated under the shape memory effect of the memory alloy after being heated, and shortened after the temperature is lowered, so that the water pipe can be separated from the inner wall during the process of elongation and shortening Attached limescale.

Preferably, the water pipe is constructed as a copper-zinc-aluminum shape memory alloy piece. Since the price of copper-zinc-aluminum shape memory alloy parts is relatively low, and their properties are relatively stable, no harmful substances will be produced during high-temperature heating. Therefore, the use of copper-zinc-aluminum shape memory alloys to manufacture water pipes can reduce the manufacturing cost of water pipes and improve steam performance. Generator security. Certainly, the embodiment of the present application is not limited thereto, and the water pipe may also 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 present application, the heating element includes: a heating pipe, wherein the water pipe is configured as a round pipe, and the heating pipe is spirally wound on the outside of the round pipe, so that the contact area between the heating pipe and the round pipe is larger, thereby It can ensure the heating effect of the heating tube on the round tube. Moreover, the heating tube is spirally wound on the outside of the round tube, which can make the round tube heated more evenly, so as to avoid the deformation of the water tube during the heating and elongation process caused by the uneven heating of the round tube, thereby improving the steam generator. settings security.

According to some other embodiments of the present application, the heating element includes: a heating plate, the water pipe is configured as a square tube, the heating plate is attached to at least one side wall of the square tube, and the heating plate heats the side wall of the square tube to heat the inside of the square tube. The liquid water in the square tube can be converted from liquid to steam in the square tube, and transported to the inside of the steam appliance. Moreover, since the overall structure of the steam generator composed 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 appliance, the overall structure of the steam appliance is made more compact, improving Improve the utilization of the internal space of steam appliances.

According to some embodiments of the present application, a heat conduction layer is provided between the heating element and the water pipe, so that the water pipe can be heated more evenly, and avoid deformation of the water pipe during heating and elongation due to uneven heating of the water pipe, thereby further The safety of setting up the steam generator has been greatly improved.

As a preferred embodiment, the heating element includes: an electromagnetic induction coil, and the electromagnetic induction coil is sleeved on the outside of the water pipe to heat the water pipe through the principle of electromagnetic induction heating. Therefore, not only the heating effect is better, but also the structure is simpler and the cost is lower.

According to some embodiments of the present application, the inner wall of the water pipe is configured as a smooth inner wall, so that the scale accumulated on the inner wall of the water pipe is easier to fall off, so that the scale can be completely separated from the water pipe during the expansion and contraction of the water pipe, so as to further improve the performance of the steam generator. descaling effect.

In some other embodiments, the water pipe can be configured as a resistance tube. The resistance tube has a certain resistance value according to its material characteristics, and can convert electrical energy into heat energy. The power supply device can provide electrical energy to the resistance tube, so that the resistance tube can generate heat by itself. . There is a liquid flow space in the resistance tube, and one end of the liquid flow space in the resistance tube is connected to the external liquid source, and the other end is connected to the outlet channel of the steam generator. The device is electrically connected with the resistance tube so as to supply power to the resistance tube and make the resistance tube generate heat. After the power supply device supplies power to the resistance tube, the resistance tube can convert electrical energy into heat energy, and the heat generated by the resistance tube can directly heat the liquid water in the liquid flow space, so that the liquid water flowing from the external liquid source into the liquid flow space After being heated, it can be converted from a liquid state into water vapor, and the converted water vapor is transported from the outlet channel of the steam generator to the interior of the steam appliance, so that the heated water vapor can heat and cook the food inside the steam appliance.

According to some embodiments of the present application, the power supply device includes: a power supply and a power supply wire, the power supply can be a DC power supply or an 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 resistance tube end, so that the thermal effect generated by the current flowing through the resistance tube is used to heat the liquid water, so that the liquid water is converted into water vapor.

Further, there are two power supply wires, and the two power supply wires are respectively connected to the two outermost ends of the resistance tube in the extending direction. That is to say, the two power supply wires are suitable to be connected to the liquid inlet end and the gas outlet end of the resistance tube respectively, so that all the resistance materials of the resistance tube can be supported by the voltage at both ends, so that the whole resistance tube can be generated under the action of the power supply. Heat, so that the resistance tube can have the largest heating area, which in turn makes the heating effect of the resistance tube better. As a result, the heating efficiency of the resistance tube is improved, thereby improving the steam production efficiency of the steam generator.

Specifically, one of the power supply wires is connected near the junction of the water pipe and the resistance tube, and the other power supply wire is connected near the junction of the resistance pipe and the outlet channel of the steam generator. As a result, the entire resistance tube can generate heat so that it has the largest heating area.

According to some embodiments of the present application, an insulating protection layer is provided on the outer side of the resistance tube, wherein the insulating protection layer can play an effective insulating role. Therefore, when the resistance tube leaks or other faults occur, the insulating protective layer can prevent the resistance tube from short-circuiting, so as to improve the operation stability of the steam generator, and also prevent the resistance tube from overlapping with the surrounding parts. A short circuit occurs.

Further, the resistance value of the resistance tube is related to the material of the resistance tube, and the resistance tube can be constructed as a metal tube, a silicone tube or a graphite tube, wherein the manufacturing materials of the metal tube, the silicone tube and the graphite tube are relatively cheap, which can reduce The overall cost, and has a good resistivity, and the texture is relatively hard, not easy to damage, so that the resistance tube has better heating effect and setting stability.

According to some embodiments of the present application, the resistance value of the resistance tube is also related to the tube length and wall thickness of the resistor tube. Specifically, the thinner the wall thickness of the resistor tube, the greater the resistance, the smaller the power, and the longer the tube length of the resistor tube. Longer, the greater the resistance, the smaller the power. Therefore, the wall thickness of the resistance tube is D, 0.1mm≤D≤10mm, that is to say, the wall thickness of the resistance tube is controlled between 0.1mm and 10mm to ensure the resistance Under the premise of the overall strength of the tube, the resistance tube has a greater resistance value, so that the resistance tube can release more heat to heat the liquid water to generate water vapor.

Further, the length of the resistance tube is L, 5cm≤L≤3m, that is to say, the length of the resistance tube 1 is controlled between 5cm and 3m, so as to ensure that the overall weight and volume of the resistance tube are within a reasonable range Make the resistance tube have a larger resistance value, so that the resistance tube can release more heat to heat the liquid water to generate water vapor.

According to some embodiments of the present application, an on-off protection device is provided on the power supply wire, and the on-off protection device can ensure the operation safety of the steam generator. That is, when the water in the water box is insufficient or the circuit is short-circuited and other abnormal conditions occur, the on-off protection device is suitable for automatically disconnecting the electrical connection between the power supply and the resistance tube, so as to avoid circuit damage caused by the continuous power supply of the power supply to the resistance tube The occurrence of dangerous situations such as thermal runaway or thermal runaway can improve the reliability and safety of steam appliances.

According to some embodiments of the present application, in order to conveniently adjust the temperature and efficiency of the steam generated by the steam generator to realize the free switching of different cooking modes, the embodiment of the present application is also equipped with a voltage regulating device on the power supply wire to pass The voltage at both ends of the resistance tube is adjusted to adjust the heating power of the resistance tube, thereby achieving the purpose of changing the water vapor generation efficiency of the resistance tube and the temperature of the generated water vapor.

In the description of this application, the terms "length", "upper", "lower", "front", "rear", "left", "right", "horizontal", "top", "inner", "outer ", "radial", "circumferential" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and should not be construed as limiting the application.

In the present application, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. Those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present application, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims

A steam distributing device for cooking equipment, wherein, the steam distributing device has a steam distributing chamber inside, and the steam distributing chamber has a steam inlet and a steam outlet, and the steam inlet and the steam outlet are spaced apart in the airflow direction Drive a predetermined distance.
The steam distributing device for cooking equipment according to claim 1, wherein the steam outlet includes at least two, and the at least two steam outlets are connected to the steam inlet in the air intake direction of the steam inlet are at least partially staggered.
The steam distribution device for cooking equipment according to claim 2, wherein the at least two steam outlets are arranged at intervals along the extending direction of the steam distribution device.
The steam distribution device for cooking equipment according to claim 3, wherein the at least two steam outlets are adjacent to the first end surface in the steam distribution device, and the at least two steam outlets are connected to the steam distribution device The second end surfaces in the device are separated by a predetermined distance, and the steam inlet is arranged close to the second end surfaces in the steam distribution device.
The steam distributing device for cooking equipment according to any one of claims 1-4, wherein, the circumference of each of the steam outlets is connected with an air guide, and the air guide is connected to the steam outlet , and the air guide tube extends in the same direction as the air outlet direction of the steam outlet or has a predetermined included angle.
The steam distributing device for cooking equipment according to any one of claims 1-5, wherein the steam outlet is configured in a strip shape.
The steam distribution device for cooking equipment according to any one of claims 1-6, wherein the steam distribution device is in the shape of a hollow strip, and the steam inlet and the steam outlet are respectively arranged on the on the opposite side walls of the steam installation.
The steam distribution device for cooking equipment according to claim 7, wherein the steam outlet is in the shape of a strip extending in the same direction as the steam distribution device.
The steam distributing device for cooking equipment according to any one of claims 1-8, wherein, in the intake direction of the steam inlet, the steam inlet and the steam outlet are staggered;

And/or, the opening width of the steam outlet is in the range of 5 mm to 10 mm;

And/or, the steam outlet is straight.
A cooking device, comprising:

A box body, a cooking cavity is arranged in the box body;

A steam distribution device, the steam distribution device is connected to the box, and the steam distribution device is the steam distribution device for cooking equipment according to any one of claims 1-9.
The cooking device according to claim 10, further comprising a steam generating device, the steam generating device is connected to the box body, and the steam generating device is connected to the steam inlet of the steam distributing device.
The cooking device according to claim 11, wherein the steam distributing device is arranged on the top of the cooking cavity, and the steam outlet is configured to horizontally discharge gas towards the top of the cooking cavity.
The cooking device according to claim 12, wherein the top of the box has an outwardly protruding bulge, and the steam distributing device is configured to discharge air toward the inside of the bulge.
The cooking device according to claim 11, wherein said steam generating means comprises:

a steam generator, the steam generator is installed on the outer side of the box;

A conduit, one end of the conduit is connected to the steam generator and the other end is connected to the steam inlet of the steam distribution device.
The cooking device according to claim 10, wherein the steam distribution device comprises a steam distribution pipe, and the steam distribution pipe is provided with a steam inlet hole and a plurality of steam distribution holes arranged at intervals, and the steam distribution holes are connected with the The cooking cavity is connected.
The cooking device according to claim 15, wherein a plurality of the steam distribution holes are arranged at intervals along the length direction of the steam distribution pipe;

And/or, the steam distribution pipe is oriented along the length direction of the cooking cavity;

And/or, the steam distribution pipe is arranged on the upper part of the box;

And/or, the steam distribution pipe is arranged at the rear of the box and the steam distribution hole faces forward;

And/or, there are flanges extending outward from the steam distribution pipe around the steam distribution hole;

And/or, the steam inlet hole is formed on at least one end surface of the steam distribution pipe;

And/or, the distance between every two adjacent steam distribution holes gradually increases from the direction close to the steam inlet hole to the direction away from the steam inlet hole;

And/or, the diameter of each of the steam distribution holes gradually increases from the direction close to the steam inlet hole to the direction away from the steam inlet hole;

And/or, the steam distribution pipe is a square pipe, and the steam distribution hole is a round hole.
The cooking device according to claim 15, wherein the steam distributing device further comprises a steam inlet chamber, the steam inlet chamber is arranged in the box, is located above the cooking chamber and communicates with the cooking chamber.
The cooking device according to claim 17, wherein the steam distribution pipe is arranged at the junction of the rear wall and the top wall of the steam inlet cavity;

And/or, the lower surface of the steam inlet cavity is open to communicate with the cooking cavity.
The cooking device according to claim 10, wherein the steam distributing device is an air inlet pipe, at least a part of the air inlet pipe extends into the cooking cavity and is located at the upper part of the cooking cavity, and the at least part of the air inlet pipe Multiple steam outlets are provided.
The cooking device according to claim 19, wherein there are multiple air intake pipes, the multiple air intake pipes are spaced apart, and the steam outlets on the multiple air intake pipes are arranged to be staggered from each other.
The cooking device according to claim 20, wherein, a plurality of the air intake pipes are arranged in parallel in the same transverse plane; and/or, a plurality of the air inlet pipes are arranged in parallel.
The cooking device according to claim 19, wherein there are multiple steam outlets on each of the air inlet pipes,

Wherein, at least a part of the plurality of steam outlets is opened on the peripheral wall of the air intake pipe; and/or, part of the steam outlets located on the peripheral wall of the air intake pipe is opened towards the top wall of the box; and /or, part of the steam outlets located on the peripheral wall of the air intake pipe are equally spaced; and/or, the diameter of the steam outlet near the air intake end of the air intake pipe is smaller than that of the air intake end far away from the air intake pipe The diameter of the steam outlet.
The cooking device according to claim 19, wherein at least a part of the top wall of the box protrudes outward to form a protrusion, and the air intake pipe penetrates inward from a peripheral wall of the protrusion.
The cooking device according to claim 23, wherein a plurality of the air intake pipes penetrate inward from different directions of the peripheral wall of the protruding part.
Cooking appliance according to any one of claims 10-24, wherein the cooking appliance is a steam cooking appliance.